Weather Forecast September 11: Heavy to Very Heavy Rain Likely Over Odisha, Heavy Showers Across East India
Representational Image: AI-Skymet
Key Takeaways:
- A low-pressure area has formed over the North Bay of Bengal, with its associated cyclonic circulation extending up to 9.4 km above mean sea level.
- Heavy to very heavy rainfall may occur over Odisha during the next 24 hours.
- Isolated heavy spells are possible over Gangetic West Bengal, Jharkhand, Bihar, Chhattisgarh and Coastal Andhra Pradesh.
- Rainfall activity is expected to increase over Kerala and Lakshadweep, while rain and thunderstorms will continue across several parts of Northeast and South India.
- Forecast Validity: Next 24 hours.
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The Weather Systems Over The Country
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A low-pressure area has formed over the North Bay of Bengal and adjoining areas. The associated cyclonic circulation extends up to 9.4 km above mean sea level and tilts southwestwards with height.
A trough extends from East Uttar Pradesh to the cyclonic circulation associated with the low-pressure area over the North Bay of Bengal, across Jharkhand, up to 1.5 km above mean sea level.
The monsoon trough at mean sea level passes through Jammu, Dehradun, Bareilly, Daltonganj and Digha before reaching the centre of the low-pressure area over the North Bay of Bengal.
A trough extends from Rayalaseema to the Gulf of Mannar across Tamil Nadu, extending up to 1.5 km above mean sea level.
An upper-air cyclonic circulation persists over Saurashtra and adjoining areas at about 7.6 km above mean sea level.
An upper-air cyclonic circulation over North Haryana and adjoining areas extends up to 3.1 km above mean sea level.
An upper-air cyclonic circulation lies over Southwest Uttar Pradesh at about 5.8 km above mean sea level.
A fresh Western Disturbance is present as a trough in the middle-tropospheric westerlies, with its axis at 5.8 km above mean sea level, approximately along 72°E to the north of 28°N.
Weather Activities During The Last 24 Hours
During the last 24 hours, rain or thundershowers occurred at many places over Odisha, Jharkhand, Gangetic West Bengal, Sub-Himalayan West Bengal and Sikkim, and the Andaman and Nicobar Islands. Rain or thundershowers also occurred at a few places over Coastal Karnataka, Uttarakhand, Jammu and Kashmir, East Uttar Pradesh, East Madhya Pradesh, Bihar, Chhattisgarh, Assam, Meghalaya, Arunachal Pradesh, Nagaland, Manipur, Mizoram, Tripura, Konkan and Goa, Kerala, Coastal Andhra Pradesh, Telangana, Rayalaseema and Tamil Nadu.
Significant rainfall amounts included 5 cm at Gopalpur; 3 cm each at Bhubaneswar, Port Blair and Bahraich; and 2 cm each at Balasore, Puri, Azamgarh, Satna and Cuddalore.
The highest maximum temperature over the country was 39.7°C at Tiruchirappalli Airport in Tamil Nadu. The lowest minimum temperature over the plains was 16.5°C at Haflong in Assam.
Maximum temperatures were markedly above normal at isolated places over East Rajasthan, Coastal Andhra Pradesh and Tamil Nadu. Appreciably above-normal temperatures prevailed over parts of Himachal Pradesh, northeastern India, Uttarakhand, Punjab, Maharashtra, Telangana, Karnataka, Rayalaseema, Kerala and Lakshadweep.
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Forecast
During the next 24 hours, light to moderate rain with heavy to very heavy rainfall may occur over Odisha.
Light to moderate rain with isolated heavy spells is possible over Gangetic West Bengal, Jharkhand, Bihar, Chhattisgarh and Coastal Andhra Pradesh.
Light to moderate rain may also occur over Uttarakhand, Assam, Meghalaya, Nagaland, Manipur, Mizoram and Tripura. Scattered rain is expected over Arunachal Pradesh, Sub-Himalayan West Bengal and Sikkim.
Isolated rain and thunderstorms are possible over East Uttar Pradesh, Himachal Pradesh, Jammu and Kashmir, and West Uttar Pradesh.
Rainfall activity is likely to increase over Kerala and Lakshadweep, with isolated heavy spells possible over Kerala. Scattered rain and thunderstorms may affect Telangana, Rayalaseema, Tamil Nadu, and Coastal and Interior Karnataka.
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