Government
of India
Ministry
of Earth Sciences
INDIA METEOROLOGICAL DEPARTMENT
|
MONSOON
WATCH Ø
Southwest monsoon was vigorous over Saurashtra &
Kutch for many days, over Sub-Himalayan West Bengal & Sikkim, Gujarat
region, Konkan & Goa, Madhya Maharashtra, Marathawada, Vidarbha, Chhattisgarh,
Coastal Andhra Pradesh, Telangana, Karnataka for one or two days of the week. Ø
Southwest monsoon was active over Konkan & Goa
for many days, over Andaman & Nicobar Islands and Madhya Maharashtra for
a few days, over Arunachal Pradesh, Nagaland, Manipur, Mizoram & Tripura,
Sub-Himalayan West Bengal, West Uttar Pradesh, Uttarakhand, East Madhya
Pradesh, Gujarat, Marathawada, Vidarbha, Chhattisgarh, Coastal Andhra
Pradesh, Telangana, Rayalaseema, Coastal Karnataka, South Interior Karnataka
and Kerala for one or two days of the week. |
|
MAIN
FEATURES Ø
Under the influence of low
pressure area and off-shore trough widespread to fairly widespread rainfall
occurred over Konkan & Goa, Coastal Karnataka, Kerala, Saurashtra &
Kutch and central Ø
No significant change occurred in
seasonal rainfall departure from normal for the country as a whole. Last week’s
rainfall departure of -2% slightly increased to become -1% at the end of this week. |
|
METEOROLOGICAL
ANALYSIS Ø
Last week low pressure area
over westcentral Bay of Bengal and adjoining area of Coastal Andhra Pradesh with
associated cyclonic circulation extending up to mid-tropospheric levels
tilting southwestwards with height persisted on 26th August, 2010 and moved
over Vidarbha & adjoining areas of Telangana with associated cyclonic
circulation extending upto mid-tropspheric level on 27th August and the
system merged with the monsoon trough on 28th August. Ø
A low pressure area formed over
northwest Ø
An upper air cyclonic
circulation lay over Madhya Maharashtra and neighbourhood extending upto
mid-tropospheric level on 28th .August and over southeast Rajasthan and
neighbourhood extending upto 1.5 km above mean sea level on 29th August. Ø
Another upper air cyclonic
circulation lay over northeast Madhya Pradesh and adjoining areas of Uttar
Pradesh extending upto 0.9 km above mean sea level on 29th August. Ø
An upper air cyclonic
circulation lay over Ø
Axis of the monsoon trough ran
south of its normal position during the week except 28th August. Eastern end
of monsoon trough ran north of its normal position on 28th August. Ø
Last week the off-shore trough
from Konkan to Kerala coast persisted on 26th August. Ø
An off-shore trough ran from
Gujarat to Kerala coast during 27th-28th August and during 31st August-1st
September and ran from |
|
RAINFALL Ø Widespread rainfall occurred over Konkan
& Goa, Coastal Karnataka and Kerala during most days, over Andaman &
Nicobar Islands, Saurashtra & Kutch during many days, over Marathawada,
Telangana and Lakshadweep, during a few days and over Arunachal Pradesh,
Sub-Himalayan west Bengal & Sikkim, Nagaland, Manipur, Mizoram &
Tripura, Uttarakhand, Jammu & Kashmir, Gujarat region, Dadra & Nagar
Haveli, Madhya Maharashtra, Vidarbha, Coastal Andhra Pradesh, Rayalaseema,
Interior Karnataka during one or two days of the week. Ø Fairly widespread rainfall occurred over
Sub-Himalayan west Bengal & Sikkim, Orissa, Madhya Maharashtra and
Coastal Andhra Pradesh, during many days, over Assam & Meghalaya, Madhya
Pradesh, during a few days and over Andaman & Nicobar Islands, Arunachal
Pradesh, Nagaland, Manipur, Mizoram & Tripura, Gangetic West Bengal,
Jharkhand, West Uttar Pradesh, Uttarakhand, Himachal Pradesh, Gujarat, Marathawada,
Vidarbha, Chhattisgarh, Interior Karnataka and Lakshadweep during one or two
days of the week. Ø Scattered rainfall occurred over East
Rajasthan during most days, over Arunachal Pradesh, Assam & Meghalaya,
West Madhya Pradesh, Gujarat region, Dadra & Nagar Haveli, Vidarbha and
North Interior Karnataka during many days, over Nagaland, Manipur, Mizoram
& Tripura, Gangetic West Bengal, Orissa East Uttar Pradesh, Chhattisgarh,
Tamilnadu & Puducherry and South Interior Karnataka during a few days and
over Andaman & Nicobar Islands, Sub-Himalayan West Bengal & Sikkim,
Jharkhand, Uttarakhand, Haryana, Punjab & Chandigarh, Himachal Pradesh,
East Madhya Pradesh, Madhya Maharashtra, Marathawada, Coastal Andhra Pradesh,
Telangana, Rayalaseema and Lakshadweep Ø Isolated rainfall occurred over Bihar, West
Uttar Pradesh and West Rajasthan during most days, over Jharkhand, East Uttar
Pradesh, Haryana Chandigarh & Delhi, Punjab, Jammu & Kashmir,
Rayalaseema and Tamilnadu & Puducherry during many days, over Uttarakhand,
Himachal Pradesh, Telangana, during a few days and over Andaman & Nicobar
Islands, Arunachal Pradesh, Gangetic West Bengal, East Madhya Pradesh, Konkan
& Goa, Marathawada, Chhattisgarh, North Interior Karnataka, South
Interior Karnataka and Kerala during one or two days of the week. Ø Details of rainfall distribution/activity
during the week are given in Annexure-1. |
|
Rainfall during the week (For the week ending on 1st September, 2010) The
chief amount of rainfall (1 cm and above) reported over various stations are
given in Annexure-I. Rainfall
was excess/normal in 24 and deficient/scanty in 12 out of 36 meteorological
sub-divisions. (Actual: 57.2 mm, Cumulative Seasonal Rainfall (1st June
to 1st September, 2010) Rainfall
was excess/normal in 29 and deficient in 7 out of 36 Meteorological
sub-divisions. (Actual: 719.9 mm, The
sub-divisionwise weekly and seasonal rainfall distribution is presented in
enclosed map. Districtwise
distribution of excess, normal, deficient and scanty rainfall is shown in 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 8th September, 2010 ·
Fairly widespread rainfall is likely to occur over central
& northwest ·
Fairly widespread rainfall is likely to occur over east
&northeast |
