WEATHER DURING THE WEEK ENDING ON 1^st February, 2012

SIGNIFICANT WEATHER

• Rain/snowfall occurred at many places over Jammu & Kashmir on 26^th January and at one or two places over Jammu & Kashmir, Himachal Pradesh and Uttarakhand on 27^th January 2012.

• Fog occurred at one or two places over northwest India and eastern states during the week.

• The lowest minimum temperature of 1.7ºC recorded on 31^st January at Narnaul (Haryana) in the plains of the country.

METEOROLOGICAL ANALYSIS

• Last week’s upper air cyclonic circulation over Vidarbha lay over Chhattisgarh and neighbourhood on 26^th January in the lower level, persisted over the same area on 27^th January and became less marked on 28^th January.

• An upper air cyclonic circulation lay over West Madhya Pradesh and neighbourhood on 28^th January and persisted over the same area during 29^th to 31^st January and became less marked on 1^st February.

• An upper air cyclonic circulation lay over Assam and neighbourhood on 27^th January in lower level. It persisted over the same area during 28^th to 31^st January and became less marked on 1^st February 2012.

• A western disturbance as trough in westerlies at 500 hPa lay over Jammu & Kashmir on 26^th January, persisted on 27^th over the same area and moved away eastwards on 28^th January 2012.

RAINFALL

• Fairly widespread rainfall occurred over Andaman & Nicobar Islands, Jammu & Kashmir and East Madhya Pradesh for one or two days of the week.

• Scattered rainfall occurred over Chhattisgarh for a few days and over Arunachal Pradesh, Madhya Pradesh and Tamilnadu & Puducherry for one or two days of the week.

• Isolated rainfall occurred over Madhya Pradesh for many days; over Andaman & Nicobar Islands, Arunachal Pradesh, Assam & Meghalaya, Himachal Pradesh, West Madhya Pradesh, Vidarbha, Coastal Andhra Pradesh and Tamilnadu & Puducherry for a few days and over Sub-Himalayan West Bengal & Sikkim, Orissa, Jharkhand, Uttarakhand, Jammu & Kashmir, Chhattisgarh, Telangana and Rayalaseema for one or two days of the week.

• Weather remained mainly dry over rest parts of the country during the week.

MINIMUM TEMPERATURE

Minimum temperatures were-

• Below normal to appreciably below normal over Uttar Pradesh, Uttarakhand, Haryana, Chandigarh & Delhi and Punjab for many days; over northeastern states, Jammu & Kashmir, East Rajasthan and South Interior Karnataka for a few days and over West Bengal & Sikkim, Orissa, Jharkhand, Bihar, Himachal Pradesh, West Rajasthan, Madhya Pradesh, Gujarat State, Konkan & Goa, Madhya Maharashtra, Coastal Andhra Pradesh, Rayalaseema, Tamilnadu & Puducherry, Coastal Karnataka, North Interior Karnataka and Kerala for one or two days of the week.

• Above normal to appreciably above normal over Chhattisgarh for many days; over Madhya Pradesh, Gujarat State, Vidarbha and Telangana for a few days and over West Bengal & Sikkim, Orissa, Jharkhand, Bihar, Konkan & Goa, Marathawada, Coastal Andhra Pradesh, Rayalaseema and interior Karnataka for one or two days of the week.

• They were near normal over rest region of the country.

Rainfall During The Week (For the week ending on 1^st February, 2012)

Rainfall was excess in 07, deficient/scanty in 12 and no rain in 17 out of 36 sub-divisions. (Actual: 1.6 mm, Normal: 5.4 mm and Departure: -71%).

Cumulative Seasonal Rainfall (1^st January to 1^st February, 2012)

Rainfall was excess/normal in 21, deficient/scanty in 11 and no rain in 04 out of 36 sub-divisions. (Actual: 26.5 mm, Normal: 19.5 mm and Departure: +36%).

The sub-divisionwise weekly and seasonal rainfall distribution is presented in enclosed map.

A comparative data of cumulative seasonal rainfall during the corresponding period in the last five years is given in Table-3.

Outlook For The Week Ending on 8^th February, 2012

♦ Rain/snowfall would occur at a few places over western Himalayan region and rain/thundershowers would occur at one or two places over Haryana, Chandigarh & Delhi during first half of the week.

♦ Rain/thundershowers would occur at one or two places over northeastern states during second half of the week.

♦ Weather would be mainly dry over rest parts of the country.