Government of India
Ministry of Earth Sciences
India Meteorological Department
Press Release
Dated 3 July, 2009
Subject:
Monsoon- 2009: Current status
Meteorological conditions of the week (25 June to
1 July)
v
The
off-shore trough extending from Konkan coast to Kerala coast persisted throughout the week.
v
An
upper air cyclonic circulation developed over Bay of Bengal on 25 June and
moved across eastern & central parts of the country upto northwest India.
v
A
Mid latitude westerly trough affected northwest India towards the end of June.
Monsoon Advance
(upto 3 July, 2009)
After a hiatus of about
two weeks or more mainly over parts of central & east India, southwest monsoon
has advanced over the remaining parts of Gujarat, Madhya Pradesh, Chhattisgarh,
Orissa, West Bengal & Sikkim and entire Bihar, Jharkhand, east Uttar
Pradesh & Uttarakhand on 29 June. Subsequently, monsoon has advanced over
many parts of northwest India on 30 June and remaining parts of northwest India
on 1 and 3 July. Thus, southwest monsoon has covered the entire country about
12 days earlier than its normal schedule.
Rainfall during the
week (25 June to 1 July)
After
a long weak spell, rainfall activity increased considerably during this week.
Monsoon was vigorous along the west coast and northeastern states during many
days. East, central and northwest India has also experienced rainfall activity
at many places with isolated heavy falls. However, the rainfall remained
subdued over interior parts of peninsula. During the week, rainfall was
excess/normal in 13 and deficient/scanty in 23 out of 36 meteorological
sub-divisions.
Seasonal Rainfall Scenario (1 June to 2
July)
The cumulative seasonal rainfall for the country as a
whole during this year’s monsoon has so far been 43% below the Long Period
Average (LPA). Out of 36 meteorological
sub-divisions, rainfall was excess/normal in 7 and deficient/scanty in 29
meteorological sub-divisions.
As
compared to last week, there has been significant improvement in the overall
rainfall condition. There is improvement in 24 meteorological sub-divisions, no
large change in 6 and deterioration in 6 (mainly in South Peninsula). The Comparative
details of the rainfall distribution for the country as a whole and over the
four broad homogeneous regions of India are given below:
|
Regions |
Actual Rainfall (mm) |
% Departure from LPA |
||
|
1June
to 25 June |
1
June to 2 July |
1June
to 25 June |
1
June to 2 July |
|
|
Country as a whole |
56.4 |
102.9 |
-54 |
-43 |
|
Northwest India |
22.4 |
42.4 |
-50 |
-44 |
|
Central India |
34.8 |
83.1 |
-69 |
-55 |
|
South Peninsula |
88.7 |
121.2 |
-29 |
-29 |
|
North East India |
127.7 |
238.5 |
-55 |
-38 |
Meteorological conditions for the next
week
v The
off-shore trough is likely to persist along the west coast.
v An upper
air cyclonic circulation is likely to form over northwest Bay of Bengal and
adjoining east India around 5 July which may subsequently develop into a land
low pressure area around 7 July.
Weather forecast for next one Week
v Widespread rainfall activity with heavy to very heavy falls
at a few places is likely along the west coast and northeastern states
v Fairly widespread rainfall activity with isolated heavy to
very heavy falls is likely over many parts of east India.
v
Increase in the intensity of rainfall activity over
central India, Interior Maharashtra and Gujarat from 7 July onwards.
v Subdued
rainfall activity is likely over northwest and interior peninsular India during
first half and scattered in the later half of the week.
Next Press Release will be issued around
10 July 2009.