MONSOON UPDATES AND WEEKLY WEATHER REPORT FOR THE WEEK ENDING 26TH AUGUST 2017

Realised weather over Maharashtra, Goa and Gujarat State (20^thAugust to 26^th August)

The date wise positions of axis of monsoon trough  during the week is given below:

It is seen that the monsoon trough is shifted southwards from the normal position due to the low pressure area over central India which lies over East Vidarbha on 20^th August. The low pressure has been intensified into well marked low on the same night and shifted to west Vidarbha. The low pressure system lies over Southwest Madhya Pradesh on 21^st . It moved over Kutch on 22^nd and became less marked.

On 24^th, there was an upper air cyclonic circulation lies over coastal Odisha and neighbourhood which extends between 1.5 & 7.6 km above mean sea level. On 25^th, it moved over Chhattisgarh and neighbourhood. On 26^th , It lies over Northeast Madhya Pradesh and neighbourhood.

Both these weather system give good amount of rainfall over Maharashtra, Goa and Gujarat.

Sub Division	Vigorous Monsoon	Active Monsoon
North Konkan	21st & 26th
South Konkan-Goa		25th & 26th
North Madhya Maharashtra	21st	22nd
Marathwada	20th & 21st
Vidarbha		20th  & 25th
Gujarat Region		21st & 22nd
Saurashtra & Kutch	21st & 22nd	23rd

* Criteria set by India Meteorological Department

*Vigorous Monsoon :-

1. Rainfall exceeding 4 times the normal
2. Rainfall in at least two stations should be 5 cm in coastal stations and 3 cm elsewhere.
3. Rainfall in that sub-division should be fairly widespread or widespread.

*Active monsoon

1. Rainfall 1 ½ to 4 times the normal.
2. The rainfall in at least two stations should be 5 cm, if that sub-division is along the west coast and 3 cm, if it is elsewhere.
3. Rainfall in that sub-division should be fairly widespread to widespread.

 

Forecast for next week.

Upper Air cyclonic circulation over North West Bay of Bengal and upper air cyclonic circulation of  Mizoram jointly will form a low pressure area over North West Bay of Bengal. adjoining Odisha coast.

Konkan – Goa :- Districts of North Konkan will experience heavy to very heavy rainfall on 27^th , 28^th and 29^th August and light to moderate rainfall at isolated places on 30^th , 31^st August , 01^st & 02^nd September. Districts of south Konkan and Goa will observe heavy to very heavy on 27^th  ,28^th  and 29^th  August  and moderate rainfall at a few places on 30^th  and 31^st August  and light to moderate rainfall on 01^st & 02^nd September.

Madhya Maharashtra :- Districts of North Madhya Maharashtra will experience heavy rainfall on 27^th , 28^th and 29^th  August and moderate rainfall at many places on 30^th August and light rainfall at isolated places on 31^st  August , 01^st & 02^nd September. Districts of South Madhya Maharashtra will experience moderate rainfall at a few places from 27^th to 30^th August and light rainfall at isolated places or weather will be dry from 31^st August to 02^nd September.

Marathwada :-  Districts of Marathwada will observe moderate to heavy rainfall from 27^th to 29^th August and light rainfall at isolated places on 30^th August and weather will be dry afterwards.

Vidarbha :- Districts of West Vidarbha will experience moderate rainfall at a few places on 27^th August and moderate to heavy at many places on 28^th and heavy to very heavy on 29^th August and light to moderate at isolated places from 30^th August to 01^st September and again rainfall activity will increase on 02^nd September.

Gujarat region :-Districts of North Gujarat will observe moderate to heavy rainfall at many places on 27^th and 28^th August and moderate at a few places on 29^th August and light rainfall at isolated places afterwards. Districts of south Gujarat will receive heavy to very heavy on 27^th and 28^th August and moderate to heavy at a few places on 29^th August and light to moderate at isolated places afterwards.

Saurashtra and Kutch :- Districts Saurashtra will get light to moderate at a few places 27^th August and moderate to heavy at many places on 28^th August and heavy to very heavy on 29^th August and light rainfall at isolated places afterwards. Districts of Kutch will receive light to moderate rainfall on 27^th August and light rainfall afterwads.

Note on Monsoon watch.

Upper air cyclonic circulation over north east MP on 26^th will moving up to Kutch as per model this will give heavy rainfall to Gujarat and northern part of Maharashtra. Upper air cyclonic circulation of North West Bay of Bengal off North Odisha coast and cyclonic circulation over eastern part of Mizoram both likely to form a low pressure area in near future and again it will give the rainfall to central India.