MONSOON WATCH

·        Southwest monsoon was active over Arunachal Pradesh, Maharashtra, Telangana, Rayalaseema, Karnataka and Kerala during past 24 hours. (Picture enclosed).

·        Significant amounts of rainfall (1 cm or more) during past 24 hours ending at 0830 hours IST are enclosed.

·        KALPANA–1 Cloud imagery at 1430 hours IST shows convective clouds over parts of Uttarakhand, west Uttar Pradesh, Madhya Pradesh, Orissa, Gangetic West Bengal, Maharashtra, northeastern states, east Arabian Sea, north and south Bay of Bengal and Andaman Sea. Low/medium clouds are seen over rest parts of the country. (Picture enclosed).

Synoptic features and Numerical Weather Prediction (NWP) Guidance

·        The low pressure area now over lies over east Madhya Pradesh and adjoining west Madhya Pradesh.

·        The axis of monsoon trough at mean sea level passes through Bikaner, Sawaimadhopur, Centre of low pressure area, Raipur, Kalingapattinam and thence southeastwards to eastcentral Bay of Bengal.

·        The off shore trough runs from south Gujarat coast to Konkan coast.

·        According to Numerical Weather Prediction Models, the low pressure area is likely to move west-northwestwards.

Major features of weather forecast (upto 1430 hrs. IST of 02 Aug., 2010)

·        Widespread rain/thundershowers would occur over west coast.

·        Fairly widespread rain/thundershowers would occur over Himachal Pradesh, Uttarakhand and adjoining northern plains, central and northeast India.

·        Fairly widespread rain/thundershowers would occur over Madhya Pradesh, Marathwada during next 24 hours and decrease thereafter.

Warning

·         Isolated heavy to very heavy rainfall would occur over north Madhya Maharashtra, Chhattisgarh, Vidarbha and Marathwada during next 24 hours.

·         Isolated heavy to very heavy rainfall would occur over Uttarakhand, West Uttar Pradesh, Madhya Pradesh, Konkan & Goa and coastal Karnataka, Arunachal Pradesh, Assam & Meghalaya and Sub-Himalayan West Bengal & Sikkim during next 48 hours.

Weather Outlook (upto 1430 hours IST of 04 August, 2010)

·          Fairly widespread rainfall would occur over west coast, northwest, east and northeast India.