Sunday, July 20, 2014

STH stormwatch (20Jul2014) : Reporting 4rth low pressure area in the Bay this season and also rainfall update


                                                                                                          

‘A low pressure area has formed over north Bay of Bengal and adjoining area of
Gangetic West Bengal and Odisha. Associated upper air cyclonic circulation extends upto 7.6 km above mean sea level. It may become well marked during next 24 hr’
Updates will be posted as necessary (see info on previous low pressure areas here 1, 2, 3)

Placed above in chart form is the weekly % Departures of Rainfall for the Monsoon 2014 for Sikkim and Darjeeling district.

Praful Rao,
Kalimpong,
Dist Darjeeling

Sunday, July 13, 2014

STH Activities : 07 and 10July2014

While realizing full well that awareness programs alone are NOT enough, STH remains committed to making people aware of the severe landslide problem in the Darjeeling-Sikkim Himalaya and also the totally callous way we are treating our mountains, which will surely lead to devastating consequences in the future.

Praful Rao,
Kalimpong,
Dist Darjeeling.

Saturday, July 12, 2014

STH stormwatch : Reporting a low pressure in the Bay of Bengal (12Jul2014)

All India Weather Bulletin (Night) -11Jul2014
" The low pressure over  NW Bay off the coast of W Bengal and Odisha persists.
Associated upper air cyclonic circulation extends upto 7.6 km above mean sea level"

This is the 3rd LOPAR this season in the bay. Updates will posted as necessary.

Praful Rao,
Kalimpong,
Dist Darjeeling

Saturday, July 5, 2014

Rainfall data Jun2014

June2014 saw no major weather systems developing in the Bay of Bengal and the first two weeks of the month were hot with not much rainfall in Sub-Himalayan West Bengal (SWHB) and Sikkim.
The second half of June2014 however witnessed heavy showers in the entire region - thus Kalimpong, Darjeeling and Siliguri received around 90% of the month's rainfall between 15-30Jun2014 (see slides 2-3) and this placed the region in TRMM's potential landslide zone (slide 4)
No major landslides were reported even though a landslide fatality did occur in Sikkim.

Praful Rao,
Kalimpong,
Dist Darjeeling

Thursday, July 3, 2014

STH stormwatch : Low pressure moves inland



Meteorological Analysis  (based on 0530 hours IST) 03Jul2014
"The low pressure area over Gangetic West Bengal & adjoining Bangladesh now lies over Gangetic West Bengal  and neighbourhood with associated upper air cyclonic circulation extending upto 7.6 km above mean sea level tilting southwestwards with height"
Associated weather warning is here

Praful Rao,
Kalimpong,
Dist Darjeeling

Tuesday, July 1, 2014

STH stormwatch: Low Pressure forms in the north Bay of Bengal

An excerpt from IMD All India Weather Bulletin (evening)
" The low pressure area over north Bay of Bengal and adjoining areas of Bangladesh & Gangetic West Bengal persists.
Associated upper air cyclonic circulation extending upto 7.6 km above mean sea level tilting southwestwards with height also persists"
This is the second low pressure area of 2014 in the Bay, the first one being here

Praful Rao,
Kalimpong,
Dist Darjeeling

Monday, June 30, 2014