Showing posts with label West Bengal weather. Show all posts
Showing posts with label West Bengal weather. Show all posts

Sunday, April 8, 2012

Severe Weather continues across Eastern India,Bangladesh while Central India HEATS UP

METD WEATHER
AKSHAY DEORAS
SEVERE WEATHER FORECASTER


PENCH NATIONAL PARK,MADHYA PRADESH
8TH APRIL 2012

As was mentioned in the past Friday's update, the ongoing Severe Thunderstorms in the Eastern India and  Bangladesh stretching upto North East India had some severe RADAR signatures today. The Radar products from Agartala clearly depicted violent thunderstorms in the region of India-Bangladesh border prominently with cloud tops over 14kms in height and cloud top temperature ( CTT) over -60C!!
Check the below RADAR image of Agartala as of 1401GMT


The above Max Z product clearly shows violent thunderstorms just West,South-East of Dhaka and many isolated thunderstorms over the Tibetian region in the North of Agartala...


The above CTT imagery shows extreme CB clouds as of 1630UT over North-East India.... The situation has been worst for Bangladesh where already around 17 people have been killed due to severe weather since it began a few days ago

Below is a news report  I found-


DHAKA, Bangladesh (AP) -- News reports say storms with heavy rains and strong winds have killed at least 17 people and injured dozens more in Bangladesh.
Dhaka's Prothom Alo and Janakantha newspapers say Friday's storms damaged mud-and-straw huts and felled trees in 10 of the country's 64 districts.
The reports say most of the deaths occurred from lightning. Some victims were buried under their collapsed houses.
Official confirmation of the reports was not immediately available.

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Forecast-


Extreme Thunderstorms will be continuing in a region starting from West Bengal stretching into Bangladesh and North-East India atleast for a week! Favorable conditions including the high instability is the key for such severe weather events!

People in these areas shall remain alert especially precautions must be taken from Lightning,Heavy Rains,Winds and Hailstorm/Tornadoes ( if happen) 

*** SOME THUNDERSTORMS SHALL BE SEVERE AND DAMAGE PRODUCING****

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Central India HEATS UP!!!

*** Wardha,Chandrapur ( Maharashtra) record maximum temperature of 43.1C ( IMD) ON 8TH APRIL 2012 ***

*** NAGPUR RECORDS TEMPERATURE OF 41.1C ( IMD) OR 43C ( PWS) TODAY***

The Summer is in a full swing in Central India as the winds from the west are getting a good scope to bring the dry air as the system of low pressures across India coupled with the anticyclone ( High Pressure) in Arabian Sea continues to pump moisture and boosted winds! The quantum of moisture has reduced for some days but shall increase again after the mid of this week thus bringing more clouds and convective activity in Central India. 


Above- Extraordinary heating over Central India causing the low pressures as shown in the image contine to pull moisture and subsequent heat adding to maximum temperatures

Another western disturbance will affect North India within 24hrs from now



STAY TUNED FOR UPDATES---

Thursday, April 5, 2012

Severe Thunderstorm grips West Bengal,Bangladesh

METD WEATHER
AKSHAY DEORAS
SEVERE WEATHER FORECASTER

*** SEVERE THUNDERSTORMS IMPACTING WEST BENGAL,BANGLADESH***


FOLLOW- facebook.com/deorasakshay FOR THE LATEST





As was mentioned on the METD WEATHER FB page, Severe Thunderstorms have fired across West Bengal territory covering Bangladesh also. The thunderstorms intensification began on 5th April with immediate results of rains interrupting the IPL Cricket play at Kolkata yesterday and numerous reports of Thunderstorms with Heavy Rains from Kolkata and other parts of the West Bengal.

Media reports are confirming Water logging in Kolkata. Below is the image obtained from ( Courtesy CNN Network) showing Water Logging in Kolkata.

Kolkata: Heavy thunder showers cause water-logging


METEOROLOGICAL ANALYSIS AND FORECAST-

Visit METD WEATHER FACEBOOK PAGE for all the updates as time limitations are restricting to put much on the blog!




The 00UTC Thai Map shows the presence of two low pressures ( One across Eastern Madhya Pradesh) and another over West Bengal at the lower levels of atmosphere. Such a combination is often embedded in the upper air Jet-Stream which features like a "Trough" ( Trough of a Transverse Wave) which are often responsible for bringing the energy for convection in the upper air atmosphere. The trough feature can be seen in the below 200mb map as the region across West Bengal,Northern Bay of Bengal where a U shaped wind patter has appeared which is the region of trough.
A Trough feature often enhances the upper level forcing which is required for thunderstorms to grow



At the surface, an area of High pressure offshore Odisha and Low pressure over Bengal is forcing the low level winds to bring more moisture thus elevating the dewpoints over West Bengal,Bangladesh region





Such all ingredients coupled with strong upward lifting and high instability behaves like cyclogenisis and deepens the low pressure in the region.

Forecast-

HEAVY RAINS,STRONG WINDS OVER 60KM/HR AND LIGHTNING ACCOMPANIED BY WATER LOGGING PROBLEMS WILL CONTINUE IN WEST BENGAL,BANGLADESH FOR THE NEXT 48HRS ATLEAST


*** PEOPLE MUST WATCH OUT FROM STRONG WINDS ESPECIALLY THE ROOFS OF THEIR HOUSES IN SUCH CASES****


*** ISOLATED SEVERE THUNDERSTORMS CAN PRODUCE HAILS AND ISOLATED TORNADOES ( ACCURACY NOT GUARANTEED DUE TO LESS FORECAST MODELS) IN THE REGION PARTICULARLY BANGLADESH AREA