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Friday, May 17, 2013

Northeast braces itself to face cyclone Mahasen!আতঙ্ক ছড়ালেও দুর্বল ছিল মহাসেন! बंगलादेश में चक्रवात "महासेन" का 14 लोग शिकार बने

Bangladeshis stand by the Bay of Bengal coast before the tropical cyclone Mahasen made landfall in Chittagong, Bangladesh, on Thursday, May 16, 2013.
APBangladeshis stand by the Bay of Bengal coast before the tropical cyclone Mahasen made landfall in Chittagong, Bangladesh, on Thursday, May 16, 2013.

An alert has been sounded across Assam as cyclone 'Mahasen' is likely to hit the north-eastern states tonight, officials said today. All boats and ferry services on Brahmaputra have been closed for the next three days and fishermen have been directed not to venture out to the river. 

A control room has been set up in the district headquarters though no evacuation was required at the moment as the intensity was expected to be less. 

Cyclonic storm Mahasen has moved from Bangladesh hitting the the Northeastern states with heavy rains and strong winds on Thursday.

The Assam Government was the first to issue the cyclone alert, with the State Inland Water Transport shutting down all the ferry services on the Brahmaputra waters for three days.

According to Regional Meterology Centre (RMC), Mahsen is likely to cause heavy showers in southern Assam, Mizoram, Manipur, Tripura and Nagaland for 36 hours along with strong winds ranging at 55 to 75kmp per hour.

A MET official bulletin confirmed, "Damage is expected over south Assam, Mizoram, Manipur, Tripura and Nagaland," adding, "Damage to thatched huts. Breaking of tree branches causing minor damage to power and communication lines also expected."

The Mizoram government issuing precautionary warnings and declared all education institutions to remain closed.

Meanwhile, Ram Muivah, Principal Secretary (Relief and Disaster Management) of Mizoram government, said that in view of the storm precautionary measures - such as providing each district with a sum of ₹15 lakh for the emergency relief of food and shelter to victims - have been taken

The cyclone threat warned people against venturing into the fields and farms till the time cyclone passes over. Dispruptions in electricity are expected with heavy winds possibly leading to felling of trees.

The cyclone created havoc on Bangladesh on Thursday, after it touched down on coastal areas and inundated major areas.

The storm claimed 4 lives in Bangladesh and in Burma. There were reports of a boat carrying 50 displaced refugees being missing.  


South Assam or Barak Valley was expected to experience the cyclone with other parts of the state expected to receive heavy to moderate rainfall, sources at the Regional Meteorological Centre at Guwahati said.

The storm had formed over the Andaman and Nicobar islands on May 10 and was moving in north-west direction but on May 14, it started moving towards north-east, Deputy Director General of Meteorology Mahesh Kumar Gupta said. 

The wind was moving at a speed of 55 to 65 km per hour and was likely to affect Mizoram, Manipur, Nagaland, Tripura and south Assam with heavy rains likely in these areas during the next 48 hours, he said. 

Rains and thundershowers were also likely in some other parts of Assam, he added. 


बंगलादेश में चक्रवात "महासेन" का 14 लोग शिकार बने

бангладеш циклон Махасен
फोटो: EPA

बंगलादेश में आए चक्रवाती तूफ़ान "महासेन" का 14 लोग शिकार बने हैं और अपने घरों से पलायन करनेवालों की संख्या दस लाख को पार कर गई है।

बंगलादेश के आपदा राहत मंत्री महमूद अली ने कहा है कि सरकार द्वारा सही समय पर ठोस उपाए करने की बदौलत हताहतों की संख्या बहुत ज़्यादा नहीं है। अधिकांश लोग बाढ़ के पानी में डूब गए हैं या तेज़ हवाओं के कारण गिरे पेड़ों के नीचे दबकर मारे गए हैं।

स्थानीय अधिकारियों ने यह भी बताया है कि इसी सप्ताह बंगाल की खाड़ी में लापता हुए म्यांमार के 25 शरणार्थियों के शव मिल गए हैं। उनमें से बीस शव बच्चों के हैं। 28 से अधिक शरणार्थियों के शव अभी तक नहीं मिले है।

श्रीलंका में सात व्यक्ति चक्रवाती तूफ़ान "महासेन" का शिकार बने हैं और वहाँ हज़ारों लोग बेघर हो गए हैं।


Bangladeshi authorities on Friday started delivering aid to thousands of families whose homes were destroyed by Cyclone Mahasen, which officials said killed 17 people.

More than 49,000 thatched houses were destroyed when the cyclone hit the Bay of Bengal late on Thursday, the chief of the country's disaster management department Abdul Wazed told DPA by phone.

Most of the more than 1 million coastal residents who took shelter from the cyclone have returned home and the Government has started door-to-door assessment of the damage caused by the cyclone to support those affected, he said.

"Cash and material support will be provided immediately to those who have lost their homes to build new ones," Mr. Wazed said.

Families in remote areas were given 3,000 taka (38 dollars) and 20 kg of rice, he said adding that the rest of the compensation package will be provided shortly after the assessment is completed.

The government had allocated about 13 million dollars and 5,000 tonnes of rice to help victims.

Many low-lying areas and islands were inundated by a surge during the storm.

Television footage showed many people stranded without homes. Others have started reparing their damaged properties.

Airports, port open

Operations resumed at Bangladesh's two main airports and the port of Chittagong, which were closed in view of the storm.

Friday prayers at mosques were dedicated to the victims.

More than 6 million people are exposed to periodic cyclones in low-lying areas in and around Chittagong, about 300 km south-east of Dhaka.

An early warning system and network of shelters were set up in Bangladesh after a storm killed an estimated 138,000 people in 1991. In 2007, a cyclone killed more than 3,000 people.

Myanmar spared

The cyclone Mahasen had been expected to also hit the west of neighbouring Myanmar, prompting the evacuation of more than 166,000 people in the western State of Rakhine, including some 27,000 refugees from last year's sectarian fighting between Buddhists and Muslim Rohingyas. But the storm weakened and changed course, sparing the Myanmar coast.

"We must say goodbye to Mahasen; she changed her path," Tun Lwin, a former director of Myanmar's Department of Meteorology and Hydrology, said on Thursday.

Bodies recovered from sea

Separately, police have recovered 31 bodies, mostly children, after a ship believed to be carrying Myanmar nationals capsized off the coast of Bangladesh.

"We found 23 children aged between 2 and 12 among the bodies floating in the Bay of Bengal," the acting district police chief of Cox's Bazar, Babul Akhter, told DPA. The rest of the victims were women, he said.

The bodies were decomposing when they were found off Teknaf, which lies on the border between Myanmar and Bangladesh, indicating they died before Cyclone Mahasen hit the area, said Ruhul Amin, chief district administrator.


Northeast braces itself to face cyclone Mahasen

Northeast braces itself to face cyclone Mahasen

A Met office bulletin said under the influence of Mahasen, heavy to very heavy showers might occur at most places in southern Assam, Mizoram, Manipur, Tripura and Nagaland during the next 36 hours.
GUWAHATI/IMPHAL/AIZAWL: With cyclonic storm Mahasen heading towards the Northeast, state governments of the region have swung into action to tackle any eventuality.

Besides putting the State Disaster Management Authority and the National Disaster Response Force on high alert, the Assam government on Thursday banned the plying of all kinds of boats and ferries on the Brahmaputra for three days. The governments of Manipur and Mizoram declared holidays for educational institutes on Friday.

"The Met office has informed there is low probability of Mahasen hitting Guwahati, but we are taking all required measures to meet any eventuality," an Assam government spokesperson said. The Kamrup (metro) district administration started a disaster-response toll-free number: 0361-2733052.

A Met office bulletin said under the influence of Mahasen, heavy to very heavy showers might occur at most places in southern Assam, Mizoram, Manipur, Tripura and Nagaland during the next 36 hours. A 55-65 kmph strong wind was expected over the states for the subsequent 24 hours.

"Damage is expected over south Assam, Mizoram, Manipur, Tripura and Nagaland," the bulletin said. "Damage to thatched huts. Breaking of tree branches causing minor damage to power and communication lines also expected."

The Nagaland government issued an alert on Mahasen and called upon the public to be prepared for any kind of disaster.

In Aizawl, the Mizoram government issued a circular to all heads of educational institutions to close on Thursday afternoon and on Friday in view of the impending cyclonic storm.

Vanlalzara, principal scientific officer of the science and technology department, said the squall was likely to spare Aizawl and northern parts of Mizoram. Vanlalzara told mediapersons the squall was likely to weaken on hitting Mizoram, which it would at the southern tip of the state, on Thursday night. But he said unprecedented heavy rain was likely to lash the whole state, justifying the closure of educational institutions.

The Manipur government also ordered the shutdown of all educational institutions on Friday. Manipur principal secretary (relief and disaster management) Ram Muivah sent a message to this effect to all DCs and additional DCs of the state. Muivah told the media the district administrations had been asked to take all possible measures to face the probable consequences of the cyclone.

Deployment of disaster-management personnel would also be done in all districts to tackle the situation, official sources said, while pointing out a hotline had been opened in Manipur as well.

What's in the name?

Cyclone Mahasen is a tropical cyclone that originated in the Indian Ocean. The name Mahasen was given by the Economic and Social Commission for Asia and the Pacific and the World Meteorological Organization Typhoon Committee after King Mahasen who ruled Sri Lanka from 277 to 304 AD. But Sri Lanka has objected to the use of the Sinhala king's name for a cyclone, saying King Mahasen had brought prosperity to the island and not destruction.

আতঙ্ক ছড়ালেও দুর্বল ছিল মহাসেন

মহাসেন নিয়ে আতঙ্ক তৈরি হয় গোটা বাংলাদেশে৷ মিয়ানমারের রোহিঙ্গাদের মধ্যেও ছড়িয়ে পড়ে আতঙ্ক৷ তবে স্থলভাগে পৌঁছাতে পৌঁছাতে দুর্বল হয়ে যায় মহাসেন৷ তাসত্ত্বেও প্রাণহানির ঘটনা ঘটেছে বিভিন্ন এলাকায়৷

  • Bangladesch Zyklon Mahasen Golf von Bengalen 15.05.2013 OVERLAY GEEIGNET

    মহাসেনের সর্বশেষ পরিস্থিতি

    ঘূর্ণিঝড় মহাসেন নিয়ে বাংলাদেশ ও মিয়ানমারে তৈরি হয় ব্যাপক আতঙ্ক৷ তবে স্থলভাগে পৌঁছাতে পৌঁছাতে দুর্বল হয়ে গেছে মহাসেন৷ তা সত্ত্বেও বার্তা সংস্থা এপির হিসেব অনুযায়ী, বাংলাদেশ, মিয়ানমার এবং শ্রীলঙ্কায় প্রাণ হারিয়েছে কমপক্ষে ৪৫ ব্যক্তি৷



মহাসেন নিম্নচাপে পরিণত, সংকেত কমে ৩

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বৃষ্টি ঝরিয়ে দুর্বল মহাসেন স্থল নিম্নচাপে পরিণত হয়েছে, যা বর্তমানে অবস্থান করছে পার্বত্য চট্টগ্রাম ও সংলগ্ন এলাকায়।

ঝুঁকি কমে আসায় দেশের সমুদ্রবন্দরগুলোকে বিপদ সংকেত নামিয়ে তিন নম্বর সতর্কতা সংকেত দেখিয়ে যেতে বলেছে আবহাওয়া অধিদপ্তর।

অধিদপ্তরের পরিচালক মো. শাহ আলম বলেন, "এখন বাংলাদেশ আশঙ্কামুক্ত। মহাসেন দুর্বল হয়ে যাওয়ায় জানমালের ক্ষতির আর শংকা নেই। এজন্যে সমুদ্রবন্দরের বিপদ সংকেত নামিয়ে সতর্ক সংকেত দেখাতে বলা হয়েছে।"

তিনি জানান, মহাসেন বিকাল ৪টায় নোয়াখালী-চট্টগ্রাম উপকূল অতিক্রম করেছে। বর্তমানে সীতাকুণ্ড, ফেনী, খাগড়াছড়ি ও সংলগ্ন ভারতের ত্রিপুরা অঞ্চলে স্থল নিম্নচাপ হিসাবে অবস্থান করছে।

এটি স্থলভাগের উপর দিয়ে আরো উত্তর পূর্ব দিকে সরে গিয়ে বৃষ্টি ঝরিয়ে লঘুচাপে পরিণত হবে।

সীমান্তের ওপারে ভারতের ত্রিপুরায়ও এর প্রভাবে বৃষ্টিপাত হবে বলে জানান তিনি।

গত ১০ মে থেকে বঙ্গোপসাগরে শক্তি সঞ্চয় করা ঘূর্ণিঝড় মহাসেন বৃহস্পতিবার সকাল ৯টার দিকে পটুয়াখালীর খেপুপাড়ায় উপকূল অতিক্রম শুরু করে।

এরপর পটুয়াখালী, ভোলা, বরগুনাসহ বিভিন্ন এলাকায় বৃষ্টি ঝরিয়ে দুপুরে  মেঘনা মোহনা হয়ে নোয়াখালী এবং চট্টগ্রামের সীতাকুণ্ড দিয়ে স্থলভাগ অতিক্রম শুরু করে এ ঝড়।

শাহ আলম জানান, উপকূলে এখন আর সাইক্লোনের প্রভাব না থাকায় চট্টগ্রাম ও কক্সবাজারে ৭ নম্বর বিপদ সংকেত নামিয়ে তিন নম্বর সতর্কতা সংকেত দেখিয়ে যেতে বলা হচ্ছে।

তবে আবহাওয়ার পরিস্থিতি স্বাভাবিক না হওয়া পর্যন্ত উপকূলের লোকজনকে আশ্রয়কেন্দ্রে থাকার পরামর্শ দেন শাহ আলম।

তিনি বলেন, "সংকেত কমিয়ে দিলেও সাগর উত্তাল থাকায় আগামী দুই দিন সব নৌযানকে নিরাপদ দূরত্বেই রাখতে হবে।"

ঘূর্ণিঝড় আইলার সময় সাতদিন সাগর উত্তাল থাকায় সতর্কতা সংকেত বহাল রাখা হয়েছিল বলে জানান তিনি।

শাহ আলম জানান, সকাল থেকে প্রথম ছয় ঘণ্টায় ঘূর্ণিঝড়টি ৫০ কিলোমিটার বেগে এগোচ্ছিল। বেলা ১২টার পর এগোনোর গতিও কমে ঘণ্টায় ২০-২৫ কিলোমিটারে নেমে আসে।

আবহাওয়ার পূর্বাভাসে বলা হয়েছে, শুক্রবার সকাল পর্যন্ত দেশের উপকূলসহ বিস্তীর্ণ এলাকায় হালকা থেকে মাঝারি বৃষ্টি অব্যাহত থাকতে পারে।

ঘূর্ণিঝড়ের প্রভাবে সকালে দক্ষিণ ও দক্ষিণ পূর্বের জেলাগুলোতে প্রবল দমকা বাতাসের বৃষ্টি হয়। পটুয়াখালী, ভোলা, নোয়াখালী, বরগুনাসহ বিভিন্ন এলাকায় বিধ্বস্ত হয় বহু কাঁচা ঘরবাড়ি।

পটুয়াখালী, ভোলা ও বরগুনায় ঝড়ে গাছচাপা পড়ে নিহত হয়েছেন ১০ জন। ঘূর্ণিঝড়ের আওতায় থাকা ১৫টি জেলার মধ্যে নয়টির অধিকাংশ এলাকায় সকালে বিদ্যুৎ সরবরাহ বন্ধ থাকে।

পটুয়াখালী, বরগুনা, ভোলা, নোয়াখালী, চাঁদপুরসহ উপকূলীয় এলাকাগুলোর নিম্নাঞ্চল ঝড়ের সময় স্বাভাবিকের চেয়ে চার থেকে পাঁচ ফুট উচ্চতার জলোচ্ছ্বাসে প্লাবিত হয়।

ঘূণিঝড়ের কারণে বুধবার থেকেই উপকূলীয় জেলাগুলোতে ব্যাপক প্রস্তুতি নেয়া হয়। ১৫টি জেলার প্রায় ১০ লাখ মানুষকে সরিয়ে নেয়া হয় তিন হাজার ২৯৬টি আশ্রয় কেন্দ্রে। আশ্রয় কেন্দ্রগুলোতে পাঠানো হয় শুকনো খাবার ও জরুরি ওষুধসহ প্রয়োজনীয় ত্রাণ সামগ্রী।  

ক্ষতিগ্রস্তদের সহায়তার জন্য দুর্যোগ ব্যবস্থাপনা ও ত্রাণ মন্ত্রণালয়ের পক্ষ থেকে বুধবারই ১০ কোটি টাকা এবং পাঁচ হাজার মেট্রিক টন চাল বরাদ্দ করা হয়।

এছাড়া ঝড়ের পরে উদ্ধার কার্যক্রম ও ত্রাণ বিতরণের জন্য ১৯টি হেলিকপ্টার, চারটি বিমান এবং নৌবাহিনীর ২২টি জাহাজ প্রস্তুত রাখা হয়।

ঝড় মোকাবেলায় পুলিশ ও বিজিবি, সেনা, নৌ ও বিমানবাহিনীর সদস্যদের পাশাপাশি সরকারি কর্মচারী ও স্বেচ্ছাসেবী অনেক সংগঠন সম্মিলিতভাবে কাজ করেন। উপকূলীয় জেলাগুলোতে দায়িত্বরত সরকারি কর্মকর্তা-কর্মচারীদের ছুটি বাতিল করা হয়।

ঝড়ের দাপট কমে আসার পর বৃহস্পতিবার এক প্রেস ব্রিফিংয়ে দুর্যোগ ব্যবস্থাপনা ও ত্রাণমন্ত্রী আবুল হাসান মাহমুদ আলী বলেন, ঘূর্ণিঝড় মহাসেন মোকাবিলায় প্রস্তুতি ভাল ছিল বলেই জানমালের ঝুঁকি অনেক কমে এসেছে।

ঝড়ের পর স্থানীয় প্রশাসনের মাধ্যমে ক্ষতিগ্রস্তদের সহায়তার ব্যবস্থা করা হবে বলে জানান তিনি।

ঘুর্ণিঝড়ের কারণে সতর্কতামূলক ব্যবস্থা হিসাবে বুধবার চট্টগ্রাম বন্দর এবং শাহ আমানত ও কক্সবাজার বিমানবন্দর বন্ধ করে দেয়া হয়।

ঝুঁকি কমে আসায় চট্টগ্রাম বন্দর বৃহস্পতিবার বিকালেই খুলে দেয়া হয়। আর শাহ আমানত বিমানবন্দরে শুক্রবার সকাল থেকে বিমান ওঠানামা শুরু হবে বলে কর্তৃপক্ষ জানিয়েছে। 


ropical Cyclone Mahasen (Northern Indian Ocean)
05.16.13
 
TRMM image of Mahasen› Larger image
When NASA's TRMM satellite passed over Cyclone Mahasen on May 16 at 0406 UTC (12:04 a.m. EDT), the TRMM Microwave imager showed the heaviest rainfall was occurring in a band of thunderstorms north of the center of circulation. That band of thunderstorms was already over southern Bangladesh and dropping as much as 2 inches/50 mm of rain per hour along the coast. Credit: NASA/SSAI, Hal Pierce 

MODIS image of Mahasen› Larger image
The MODIS instrument aboard NASA's Aqua satellite captured this visible image of Cyclone Mahasen on May 16 at 6:50 UTC (2:50 a.m. EDT) when its clouds extended over India, Bangladesh, and Burma. Credit: NASA Goddard/MODIS Rapid Response Team
NASA Sees Heavy Rainfall as Cyclone Mahasen Made Landfall

NASA's TRMM satellite identified areas of heavy rainfall as Cyclone Mahasen made landfall today, May 16, in southern Bangladesh. NASA's Aqua satellite also captured an image of the storm and showed the extent of Cyclone Mahasen's clouds over three countries. 

When NASA's Tropical Rainfall Measuring Mission (TRMM) satellite passed over Cyclone Mahasen on May 16 at 0406 UTC (12:04 a.m. EDT), the TRMM Microwave imager showed the heaviest rainfall was occurring in a band of thunderstorms north of the center of circulation. That band of thunderstorms was already over southern Bangladesh and dropping as much as 2 inches/50 mm of rain per hour along the coast. TRMM measured the highest cloud tops near 7.4 miles / 12 km high. 

Mahasen made landfall northwest of Chittagong around 0600 UTC (2 a.m. EDT) on May 16, as a tropical storm with maximum sustained winds near 45 knots (51.7 mph/83.3 kph). Mahasen is moving further inland in a north-northeasterly direction at 22 knots (25.3 mph/45.7 kph). At 0900 UTC (5 a.m. EDT), Mahasen was located near 23.7 north and 91.7 east, about 53 nautical miles (61 miles/98.1 km)southeast of Dhaka, Bangladesh. Just 50 minutes after TRMM captured the rainfall rates within Mahasen, the MODIS instrument aboard NASA's Aqua satellite captured a visible image of Cyclone Mahasen that showed the extent of its clouds over India, Bangladesh, and Burma. 

As of 12:38 UTC (8:38 a.m. EDT), the Bangladesh Meteorological Department (BMD) maintained a Signal Number 3 warning for maritime ports of Chittagong, Cox's Bazar and Mongla. For a look at Bangladesh radar, visit the BMD web page: http://tinyurl.com/c5vbs35

The interaction with the land is causing Mahasen to fall apart rapidly, according to forecasters at the Joint Typhoon Warning Center. The system became disorganized just hours after it made landfall. 

Mahasen is forecast to track across northeastern India while weakening, especially as it tracks over rugged terrain. Mahasen is also expected to encounter strong wind shear which will help speed the weakening and drop it below tropical storm status later in the day. 




This animation shows a simulated 3-D analysis of NASA's Tropical Rainfall Measuring Mission (TRMM) satellite's multisatellite Precipitation Analysis (TMPA). It shows rainfall that occurred with tropical cyclone Mahasen during the period from May 6-16, 2013 as tropical cyclone Mahasen was making it's deadly transit through the Bay Of Bengal. Rainfall from Mahasen is only adding to flooding rainfall that had already occurred in the area. TRMM's Precipitation Radar (PR) found rain within Mahasen falling at a rain of over 67mm/hr (~2.6 inches) on May 15 and at a rate of over 57mm/hr (~2.25 inches) on May 16. Rainfall totals of about 544mm (~21.4 inches) were found with this analysis over Bangladesh and north-east India. Credit: SSAI/NASA, Hal Pierce

Text Credit: Rob Gutro
NASA's Goddard Space Flight Center, Greenbelt, Md.



May 15, 2013

MODIS image of Mahasen› Larger image
NASA's Aqua satellite passed over Cyclone Mahasen on May 15 at 07:45 UTC (3:45 a.m. EDT) and showed the western edge of the storm skirting the coast of central India on its way to Bangladesh. Credit: NASA Goddard MODIS Rapid Response Team
NASA Satellites Eye Cyclone Mahasen as Bangladesh Prepares for Landfall

Tropical Cyclone Mahasen has been strengthening and expanding as it moves through the northern Bay of Bengal for a landfall on Thursday, May 16. NASA's Aqua satellite passed over the cyclone as it was hugging the central India coastline. Rainfall data from NASA's TRMM satellite was compiled in an animation to reveal large rainfall totals as the storm tracked through the Bay of Bengal earlier this week.

Mahasen is being pushed to the northeast by a trough (elongated area) of low pressure and is expected to make landfall in Bangladesh. BBC News reported on May 15 that an evacuation is under way for hundreds of thousands of residents in coastal areas of Bangladesh. The cyclone is expected to affect low-lying areas of Burma's Rakhine state, where tens of thousands reside in camps.

Although Mahasen is not a strong cyclone, it is large and will generate a storm surge over a large area along the coastline. The storm surge poses the greatest danger to residents of Bangladesh. 

NASA's Aqua satellite passed over Cyclone Mahasen on May 15 at 07:45 UTC (3:45 a.m. EDT) and the Moderate Resolution Imaging Spectroradiometer (MODIS) instrument captured a visible image of the storm. The MODIS image showed that the storm has expanded over the last several days. In the MODIS image, strong, high thunderstorms are visible north and northeast of the center, as they cast shadows on surrounding storms that make up the cyclone. 

This animated TRMM Multisatellite Precipitation Analysis shows the rainfall that occurred with Tropical Cyclone Mahasen during the week of May 6 through 13, 2013 as it moved through the Bay of Bengal. Rainfall from Mahasen has fallen mainly over the open waters of the northern Indian Ocean and the Bay of Bengal. Rainfall totals of about 500 mm (~19.7 inches) are shown (in red) west of Indonesia in this analysis. Credit: Hal Pierce, SSAI/NASA Goddard

NASA's Tropical Rainfall Measuring Mission (TRMM) multisatellite Precipitation Analysis was animated at NASA's Goddard Space Flight Center in Greenbelt, Md. to show the rainfall that occurred with Tropical Cyclone Mahasen during the week of May 6 through 13, 2013. The animation depicted Mahasen as it moved through the Bay of Bengal. The bulk of Mahasen's rain had fallen mainly over the open waters of the northern Indian Ocean and the Bay of Bengal during that period. The TRMM analysis showed that rainfall totals of about 500 mm (~19.7 inches) fell west of Indonesia in this analysis. 

On May 15 at 0900 UTC (5 a.m. EDT), Cyclone Mahasen's maximum sustained winds were near 45 knots (51.7 mph/83.3 kph). Mahasen's center was located near 17.9 north latitude and 88.2 east longitude, about 308 nautical miles (354 miles/570 km) south of Kolkata, India. Mahasen is tracking to the north-northeast at 12 knots (13.8 kph/22.2 kph). 

The exact location of landfall is still uncertain, but using three different computer models, forecasters interpolate between them and have an idea of the general area where Mahasen will hit the coast. The American GFS computer model takes Mahasen the farthest west, the Indian Met Service model brings Mahasen further south, and the U.K. Met Service model takes it even further south, so forecasters are interpolating the storm's track. 

Warnings are already in effect for Bangladesh. As of 9:51 a.m. EDT (13:51 UTC) on May 15, the Bangladesh Meteorological Department (BMD) issued Danger Signal Number 7 for Chittagong and Cox's Bazar and Danger Signal Number 5 for Mongla. Because Mahasen is expected to bring very heavy rainfall, the BMD warns that in addition to flooding, landslides are possible in the elevated regions of the Chittagong division. For specifics on the effects for the Danger Signal areas, go to:http://www.bmd.gov.bd/Content.php?MenuId=41&SubMenuId=59

All ocean vessels in North Bay have been warned to remain in port or find shelter until further notice. For updates from the Bangladesh Meteorological Department, visit: http://www.bmd.gov.bd/

Regardless of where exactly the center comes ashore this is a large cyclone. As a result of its size it is expected to bring a large storm surge above 2 meters, according to the Bangladesh Meteorological Department. So many live a few meters above sea level, which makes them more subject to flooding. 

Text Credit: Rob Gutro
NASA's Goddard Space Flight Center, Greenbelt, Md.



May 14, 2013

MODIS image of Mahasen› Larger image
NASA's Terra satellite flew over Mahasen on May 14 at 05:35 UTC (1:35 a.m. EDT). The MODIS instrument aboard Terra captured a visible image of the cyclone, revealing that it was a tightly wound, compact storm. Credit: NASA Goddard MODIS Rapid Response Team

AIRS image of Mahasen› Larger image
NASA's Aqua satellite flew over Cyclone Mahasen on May 13 at 20:05 UTC (4:05 p.m. EDT) and the Atmospheric Infrared Sounder (AIRS) instrument took the temperature of its cloud tops using infrared light. AIRS showed a large area of strong thunderstorms (purple) around the center of circulation. Credit: NASA JPL/Ed Olsen
NASA Satellites See Cyclone Mahasen Make the Curve

Tropical Cyclone Mahasen is moving northward through the Bay of Bengal and is now being pushed by a trough of low pressure, curving the storm's track to the northeast. NASA's Terra and Aqua satellites recently captured visible and infrared imagery as the storm began to curve.

NASA's Aqua satellite flew over Cyclone Mahasen on May 13 at 20:05 UTC (4:05 p.m. EDT) and the Atmospheric Infrared Sounder (AIRS) instrument took the temperature of its cloud tops using infrared light. AIRS showed a large area of strong thunderstorms around the center of circulation where cloud top temperatures were as cold as -63 Fahrenheit (-52 Celsius). The heaviest thunderstorms remained over water and just skirted the southeastern coast of India. 

NASA's Terra satellite flew over Mahasen on May 14 at 05:35 UTC (1:35 a.m. EDT). The Moderate Resolution Imaging Spectroradiometer (MODIS) instrument aboard Terra captured a visible image of the cyclone, revealing that it was a tightly wound, compact storm. Satellite imagery shows that strong convection has developed around the storm's center, visible in the MODIS image as high thunderstorm cloud tops that cast shadows on surrounding lower thunderstorms. 

On May 14, Tropical Cyclone Mahasen continues moving through the Bay of Bengal. At 1500 UTC (11 a.m. EDT) Mahasen's center was near 15.1 north and 86.4 east, about 484 nautical miles (557 miles/896 km) south-southeast of Kolkata, India. Mahasen was moving to the northeast at 7 knots (8 mph/13 kph) and it had maximum sustained winds near 45 knots (51.7 mph/83.3 kph).

Sea surface temperatures in the Bay of Bengal are warm enough to support a tropical cyclone. They are currently near 29 to 30 Celsius (84.2 to 86 Fahrenheit) along the forecast track toward Bangladesh. Vertical wind shear has also decreased, which will allow Mahasen to strengthen over the next couple of days.

Mahasen is forecast to intensify to 70 knots before making landfall near Chittagong, Bangladesh on Thursday, May 16. 



Text Credit: Rob Gutro
NASA's Goddard Space Flight Center, Greenbelt, Md.



May 13, 2013

MODIS image of Tropical Cyclone Mahasen› Larger image
NASA's Aqua satellite captured this visible image of a well-rounded Tropical Cyclone Mahasen in the Northern Indian Ocean on May 15 at 07:55 UTC (3:55 a.m. EDT). Mahasen is northeast of Sri Lanka and moving northward. Credit: NASA Goddard MODIS Rapid Response Team
NASA Sees a Strengthening Tropical Cyclone Mahasen 

The first tropical cyclone in the Northern Indian Ocean this season has been getting better organized as seen in NASA satellite imagery. Tropical Cyclone Mahasen is projected to track north through the Bay of Bengal and make landfall later this week.

The Moderate Resolution Imaging Spectroradiometer (MODIS) instrument aboard NASA's Aqua satellite captured a visible image of Tropical Cyclone Mahasen in the Northern Indian Ocean on May 15 at 07:55 UTC (3:55 a.m. EDT). The image was created by NASA's MODIS Rapid Response Team at NASA's Goddard Space Flight Center in Greenbelt, Maryland and showed Mahasen had consolidated over the last two days. Mahasen appeared rounded and its strongest thunderstorms appeared to be surrounding the center of circulation. The center also appears to be topped with a large dense overcast. The image showed Mahasen's center was northeast of Sri Lanka, although a band of strong thunderstorms south of the storm's center were affecting the island nation at the time of the image. 

On Monday, May 13 at 0900 UTC (5 a.m. EDT) Mahasen had maximum sustained winds near 50 knots (57.5 mph/92.6 kph). Those winds are expected to increase of the next couple of days. Mahasen was centered near 12.1 north latitude and 86.3 east longitude in the Bay of Bengal, and about 660 nautical miles (759.5 miles/ 1,222 km) south of Kolkata, India. Mahasen is moving to the northwest at 4 knots (4.6 mph/7.4 kph), but is expected to move in a more northerly direction as a result of interaction with a mid-latitude trough (elongated area) of low pressure moving in from the west. 

The storm is expected to reach hurricane force by May 15 as it curves northwest. The current forecast track from the Joint Typhoon Warning Center takes the center of Mahasen just north of Chittagong early on May 17 and into northern Burma. Residents in Bangladesh and Burma should begin making preparations for storm surge, heavy rain and strong winds. 

Text Credit: Rob Gutro
NASA's Goddard Space Flight Center, Greenbelt, Md.



May 10, 2013

The TRMM satellite passed above a well-organized Tropical Cyclone 01B, west of Indonesia on May 9, 2013 at 2211 UTC. TRMM's Precipitation Radar saw heavy rain was falling at a rate over 178 mm/hr (~5.8 inches) in an area around the storm's center. A few powerful storms reached heights of over 17km (~10.6 miles) near the forming storm's center of circulation. Credit: NASA/SSAI, Hal Pierce.


MODIS image of Cyclone 01B› Larger image
NASA's Terra satellite captured this visible image of Tropical Cyclone Jamala in the southern Indian Ocean (bottom) and the much larger Tropical Cyclone One B (01B) in the Northern Indian Ocean on May 10 at 04:25 UTC (12:25 a.m. EDT). Credit: NASA Goddard MODIS Rapid Response Team
NASA Sees Two Tropical Cyclones Competing in the Indian Ocean 

The Indian Ocean is alive with tropical activity today, May 10, as there's a tropical storm in both the northern and southern oceans. Tropical Cyclone Jamala (formerly 24S) and newborn Tropical Cyclone 01B were both captured on one image from NASA's Terra satellite today.

The Moderate Resolution Imaging Spectroradiometer (MODIS) instrument that flies aboard NASA's Terra satellite captured this visible image of compact Tropical Cyclone Jamala in the southern Indian Ocean and the much larger Tropical Cyclone One B (01B) in the Northern Indian Ocean on May 10 at 04:25 UTC (12:25 a.m. EDT).

On May 10 at 0900 UTC (5 a.m. EDT), Tropical Cyclone Jamala (formerly Cyclone 24S) had maximum sustained winds near 40 knots (46 mph/74 kph). It was centered near 8.7 south latitude and 86.2 east longitude, about 805 nautical miles (926.4 miles/1,491 km) east of Diego Garcia. Jamala is crawling to the south-southeast at 3 knots (3.4 mph/5.5 kph). Forecasters at the Joint Typhoon Warning Center expect Jamala to shift westward in movement and intensify up to hurricane strength. 

A different look at Tropical Cyclone Jamala, using multi-spectral satellite imagery revealed a partially-exposed low-level circulation center and a large area of deep convection displaced over the western side of the storm. 

North of the equator in the Northern Indian Ocean, newborn Tropical Cyclone 01B developed from low pressure System 92B. 01B formed near the northern tip of Sumatra. On May 10 at 0900 UTC Tropical Cyclone 01B had maximum sustained winds near 35 knots (40.2 mph/64.8 kph). It was located 1,052 nautical miles (1,211 miles/1,948 km) south of Chittagong, India, centered near 4.8 north latitude and 93.6 east longitude. Tropical Cyclone 01B was moving to the northeast at 4 knots (4.6 mph/7.4 kph) and is forecast to move northwest into the central Bay of Bengal. 

Multi-spectral satellite imagery shows that the fragmented bands of thunderstorms that were seen yesterday, May 9, have now solidified, strengthened and have become tightly wrapped around 01B's center. 

Residents of northwestern Burma and eastern Bangladesh should keep a watch on Tropical Cyclone 01B. Forecasters at the Joint Typhoon Warning Center expect 01B to intensify into hurricane force and make landfall on May 14 or 15 in northwestern Burma and eastern Bangladesh.

Text Credit: Rob Gutro
NASA's Goddard Space Flight Center, Greenbelt, Md.
 




বাংলাদেশের ঘূর্ণিঝড়ের পর চলছে জরুরী ত্রাণের উদ্যোগ

সর্বশেষ আপডেট বৃহষ্পতিবার, 16 মে, 2013 12:43 GMT 18:43 বাংলাদেশ সময়


প্রাণহানি তেমন না হলেও, উল্লেখযোগ্য সংখ্যায় ঘরবাড়ি ভেঙ্গেছে। ভারি বৃষ্টির কারণে উপকুলীয় এলাকায় ফসল ও মাছের ক্ষয়ক্ষতি হয়েছে।

সরকারি কর্মকর্তারা অবশ্য বলছেন, ক্ষয়ক্ষতির পুরো চিত্র পেতে সপ্তাহখানেক সময় লাগবে।

ঘূর্ণিঝড় আঘাত হানার পর এ পর্যন্ত অন্তত ১৩ জন নিহত হয়েছে।

সরকারের দুর্যোগ ব্যবস্থাপনা মন্ত্রণালয়ের নিয়ন্ত্রণ কক্ষ থেকে জানানো হয়, ঘূর্ণিঝড়ের আঘাতে বরগুণা জেলায় সাত জন, ভোলায় তিন জন এবং পটুয়াখালিতে দুজন নিহত হন।

এদের বেশিরভাগই ঝড়ে ভেঙ্গে পড়া বাড়ী-ঘর বা গাছ চাপা পড়ে মারা গেছেন।

বঙ্গোপসাগরের ঘুর্ণিঝড় 'মহাসেন' বৃহস্পতিবার ভোরে বাংলাদেশের পটুয়াখালির খেপুপাড়া উপকুলে প্রথম আঘাত হানে। আবহাওয়া দফতর জানায়, এরপর এটি দুর্বল হয়ে এখন ভারতের ত্রিপুরা রাজ্যের দিকে সরে যাচ্ছে।

আবহাওয়া বিভাগের পরিচালক শাহ আলম বিবিসিকে জানান, ঘূর্ণিঝড়টি আঘাত হানার সময় সাগরে ভাটা থাকায় ঝড়ের প্রভাবে কোন জলোচ্ছ্বাস হয়নি। এছাড়া ঘুর্ণিঝড়টিও যথেষ্ট দুর্বল হয়ে পড়েছিল।

cyclone warning

কক্সবাজারে মাইকের মাধ্যমে মানুষকে সতর্ক করা হয়েছে

তিনি জানান, গতকাল ঘুর্ণিঝড়টির গতিপথ দেখে মনে হচ্ছিল কক্সবাজার উপকুলের দিকেই এটি আঘাত হানতে পারে। কিন্তু পরে এর পথ ঘুরে যায় এবং পটুয়াখালির খেপুপাড়াতেই এটি প্রথম আঘাত করে।

এর পর এটি স্থলভাগের ওপর দিয়ে চট্টগ্রামের দিকে অগ্রসর হয়। সীতাকুন্ডের ওপর দিয়ে ফেনী এবং খাগড়াছড়ি হয়ে এটি এখন ভারতের উত্তর-পূর্বাঞ্চলীয় রাজ্য ত্রিপুরার দিকে যাচ্ছে।

আবহাওয়া বিভাগের পরিচালক শাহ আলম আরও জানান, ঘুর্ণিঝড়টি যখন বাংলাদেশের স্থলভাগে এসে পৌঁছায় তখন যথেষ্ট দুর্বল হয়ে পড়েছিল। ফলে এতে সেরকম ক্ষয়ক্ষতি হয়নি।

সকাল সাড়ে ৭টার দিকে খেপুপাড়ায় বাতাসের গতিবেগ রেকর্ড করা হয়েছে ঘন্টায় ১০০ কিলোমিটার।

বেশ কয়েকটি জেলার নিম্নাঞ্চল দুই ফুট উচ্চতার পানিতে প্লাবিত হওয়ার খবর দিয়েছে স্থানীয় সংবাদ মাধ্যম। তবে এখনো ক্ষয়ক্ষতির বিস্তারিত বিবরণ পাওয়া যায়নি।

এদিকে ঝড়ের কারণে দক্ষিণাঞ্চলীয় জেলাগুলোর বেশিরভাগ এলাকায় বিদ্যুৎ সরবরাহ বন্ধ রয়েছে।

ঘুর্ণিঝড় মহাসেনের প্রভাবে জলোচ্ছ্বাস হতে পারে এমন আশংকায় বাংলাদেশের উপকুলীয় এলাকার নীচু অঞ্চল থেকে প্রায় দশ লক্ষ মানুষকে ঘুর্ণিঝড় আশ্রয় কেন্দ্রগুলোতে সরিয়ে নেয়া হয়েছিল।

চট্টগ্রামের সমূদ্র এবং বিমান বন্দরও বন্ধ করে দেয়া হয়েছিল।

ঘুর্ণিঝড়ের বিপদ কেটে গেলেও এখনো পর্যন্ত সমূদ্র এবং বিমান বন্দর বন্ধ রয়েছে বলে জানা গেছে।

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