Weekly Weather

WeeklyWeatherUpdate(09-15 November 2017)

The Western Disturbance as a trough in mid-tropospheric westerlies seen as an upper air cyclonic circulation extended up to 5.8 km above mean sea level over western parts of Afghanistan and neighbourhood. With the trough aloft running at 7.6 km above mean sea level roughly along Long. 62°E to the north of Lat. 26°N on the 13th over eastern parts of Afghanistan & neighbouring areas, it extended upto 7.6km above mean sea level. The trough lay roughly along Long.67°E to the north of Lat.23°Nat 5.8 km above mean sea level on the 14th &15th. INSAT Picture showing clouds of Western Disturbance is shown in Fig.1 An induced cyclonic circulation extending upto 1.5 km above mean sea level lay over central Pakistan and neighbourhood on the 13th & 14th over northwest Rajasthan and neighbouring areas on the 15th. Due to the above two systems rainfall/snowfall occurred at many places over Jammu & Kashmir and at isolated places over Himachal Pradesh, rainfall occurred at many places at Punjab and at isolated places over Haryana and west Rajasthan between 0830 hours IST 14th to 0830 hours IST of 15th November 2017. Very Dense fog was observed at a few places over Punjab and at isolated places over north Rajasthan and Haryana, Chandigarh & Delhi on most of the days of the week and dense fog at isolated places over East Uttar Pradesh on one/two days of the week. Thunderstorms occurred at most places over Kerala from 0830 hours IST of the 8th to 0830 hours IST of 09th. The lowest minimum temperature of 8.7°C recorded at Ganganagar (West Rajasthan) in the plains of the country on the 13TH, and of 8.7°C recorded at Adampur (Punjab) in the plains of the country on the 14th. Last week’s low pressure area over south Andaman Sea & the adjoining Malay peninsula laid over southeast Bay of Bengal & neighbouring areas on the 9th, over southwest Bay of Bengal and neighbouring areas on10th & 11th, over southwest Bay of Bengal and adjoining Sri Lanka & neighbouring areas on 12th, as a wellmarked low pressure area over southwest Bay of Bengal and neighbouring areas on 13th, over west-central and adjoining southwest Bay of Bengal. Associated cyclonic circulation extends upto 7.6 km above mean sea level on 14th. It intensified into a depression over west-central Bay of Bengal off Andhra Pradesh coast, about 230 km southeast of Machilipatnam, 300 km south of Visakhapatnam and 510 km south-southwest of Gopalpur at 0830 hrs IST of 15th November, moving northward it was centred about 210 km east-southeast of Machilipatnam, 240 km south of Visakhapatnam and 460 km south-southwest of Gopalpur.at 1130 hours IST, and about 210 km east­southeast of Machilipatnam, 240 km south of Visakhapatnam and 460 km south­southwest of Gopalpur at 1430 hours IST, and then over west-central Bay of Bengal off Andhra Pradesh coast, about 170 km south of Visakhapatnam and 380 km south-southwest of Gopalpur at 1730 hours IST. INSAT picture and Radar image of Depression has been shown in Fig. 2 & 3 respectively.
09 NOV.2017: ANDAMAN & NICOBAR ISLANDS:NANCOWARY-2, CARNICOBAR-2, PORTBLAIR-2; TAMILNADU & PUDUCHERRY: PALAYAMKOTTAI-7, K.PARAMATHI-6, PAPANASAM-5, MADURAI SOUTH-4, COONOOR-4, AIRPORT MADURAI-4, VILATHIKULAM-3, DHARAPURAM-3, SATTUR-3, BODINAICKANUR-3, KOVILPATTI-3,  TIRUMANGALAM-2, THUCKALAY-2, AMBASAMUDRAM-2,  CHERANMAHADEVI-2, SIVAKASI-2, WATRAP-2, R.S.MANGALAM-2, MULANUR-2, SRIVAIKUNTAM-2, COONOORPTO-2, KUZHITHURAI-1, TIRUVANNAMALAI-1, KADAVUR-1, PERAIYUR-1, VEDASANDUR-1, MANIMUTHARU-1, KALUGUMALAI-1, SALEM-1, CHINNAKALAR-1, SANKARANKOIL-1, KODAIKANAL-1, MAHABALIPURAM-1, ARANTANGI-1, UDUMALPET-1, METTUPATTI-1, KODUMUDI-1, NANGUNERI-1, VALPARAIPTO-1, VENBAVUR-1, SRIVILLIPUTHUR-1, VIRUDHUNAGAR-1, SHOLAVANDAN-1, KADALADI-1, KARAIKAL-1, KBRIDGE-1, MANAMADURAI-1; KERALA: KURUDAMANNIL-13, PUNALUR-9, PIRAVOM-9, VARKALA-9, PERINTHALMANNA-8, KONNI-8, KOLLAM-8, PATTAMBI-7, PERUMBAVUR-7, KOTTAYAM-6, VAIKOM-6, CHERTHALA-6, THIRUVANANTHAPURAMAP-5, PONNANI-5, THIRUVANANTHAPURAM CITY-4, CHENGANNUR-4, KUMARAKOM-4, CHALAKUDY-3, VADAKKANCHERRY-3, KAYAMKULAM-3, MYLADUMPARAAGRI-3, KARIPURAP-2, ENAMACKEL-2, MAVELIKKARA-2, KOZHA-2, IDUKKI-2, THODUPUZHA-2, AMBALAVAYAL-1, QUILANDY-1, ALAPPUZHA-1, HARIPAD-1, MANCOMPU-1, IRINJALAKUDA-1, NEDUMANGAD-1, NEYYATTINKARA-1.   10 NOV.2017: ANDAMAN & NICOBAR ISLANDS:HUTBAY-4, PORTBLAIR-3, CARNICOBAR-2, LONGISLAND-1; TAMILNADU & PUDUCHERRY: THUCKALAY-5, MYLAUDY-4, AMBASAMUDRAM-3, KARAIKAL-2, KALUGUMALAI-2, PAPANASAM-1, TRANGAMBADI-1, NANGUNERI-1, SHENCOTTAH-1, COLACHEL-1, PERIYAR-1; KERALA:KONNI-3, MYLADUMPARA-1, ARYANKAVU-1, NEDUMANGAD-1;  LAKSHADWEEP:AMINIDIVI-3, MINICOY-1.   11 NOV.2017: ANDAMAN & NICOBAR ISLANDS:PORTBLAIR-2, CARNICOBAR-2, CARNICOBAR(IAF)-2, MAYABANDAR-1, HUTBAY-1; TAMILNADU & PUDUCHERRY: VEDARANYAM-13, NAGAPATTINAM-9, MARAKKANAM-7, CUDDALORE-6, PARANGIPETTAI-5, CHENGALPATTU-5, PONDICHERRY-5, MAHABALIPURAM-5, VANUR-5, KARAIKAL-4, CHIDAMBARAM-3, ANAIKARANCHATRAM-3, THIRUTHURAIPOONDI-3, MAYILADUTHURAI-3, TRANGAMBADI-3, NEYVELIAWS-3, CHEYYUR-2, SIRKALI-2, K.M.KOIL-2, KELAMBAKKAM-2, TIRUVARUR-2, SRIMUSHNAM-2, SETHIATHOPE-2, SATYABAMAUTYARG-2, PANRUTI-2, KVKKATTUKUPPAMARG-2, JAYAMKONDAM-1, MUTHUPET-1, NANNILAM-1, VIRUDACHALAM-1, NEEDAMANGALAM-1, MANNARGUDI-1, ADUTHURAIAWS-1, KODAVASAL-1, THIRUVIDAIMARUTHUR-1, ADIRAMPATNAM-1, MADUKKUR-1, USILAMPATTI-1, MADURANTHAGAM-1, THENKASI-1, TINDIVANAM-1; KERALA:KURUDAMANNIL-3, PEERMADE-1.   12 NOV.2017: ANDAMAN & NICOBAR ISLANDS:HUTBAY-2, CARNICOBAR-1, CARNICOBAR(IAF)-1, LONGISLAND-1; KERALA: MANCOMPU-4, PEERMADE-3, ALAPPUZHA-2, CHERTALA-1, MAVELIKKARA-1.   13NOV.2017: ANDAMAN & NICOBAR ISLANDS:CARNICOBAR(IAF)-5, CARNICOBAR-3, MAYABUNDAR-1; COASTAL ANDHRA PRADESH:TADA-8, SULLURPETA-5, GUDUR-1; RAYALASEEMA: SATYAVEDU-2, THOTTAMBEDU-2, SRIKALAHASTI-1; TAMILNADU & PUDUCHERRY: ENNOREAWS-11, PONNERI-7, CHENNAI(N)-7, MADAVARAMAWS-7, DGPOFFICE-4, KOLAPAKKAMARG-4, ANNA UNIVERSITY-4, ANNAUTY ARG-4, ARANMANAIPUDUR-4, THAMARAIPAKKAM-4, CHOLAVARAM-3, REDHILLS-3, CHENNAIAP-3, TARAMANIARG-3, TIRUVALLUR-2, TAMBARAM-1, MAHABALIPURAM-1, CHEMBARABAKKAM-1, POONAMALLEARG-1, POONDI-1, THIRUVALANGADU-1, SATYABAMAUTY ARG-1; KERALA: PALAKKAD-2, IRIKKUR-2, IDUKKI-2, TALIPARAMBA-1, MANJERI-1, PEERMADE-1.   14NOV.2017:ANDAMAN & NICOBAR ISLANDS:PORTBLAIR-3,NUNCOWRIE-2, CARNICOBAR(IAF)-1; COASTAL ANDHRA PRADESH:SHAR-9, SULLURPETA-8, TADA-7, GUDUR-1; RAYALASEEMA:SATYAVEDU-5, SRIKALAHASTI-1, THOTTAMBEDU-1, PUTTUR-1; TAMILNADU & PUDUCHERRY::PONNERI-7,        PAMBAN-6, RAMESWARAM-6, ENNORE AWS-6, PUZHALARG-5, REDHILLS-5, CHOLAVARAM-4, DGPOFFICECHENNAI-3, PARAMAKUDI-3, THAMARAIPAKKAM-3, CHENNAI(N)-3, MADAVARAM AWS-3, ANNAUTYARG-2, ANNA UNIVERSITY-2, POONAMALLEE-2, POONDI-2, TARAMANIARG-2, CHENNAIAP-2, ILLAYANGUDI-2, RAMANATHAPURAM-1, TIRUVALLUR-1,POONAMALLEARG-1,MADURAISOUTH-1,NAMAKKAL-1,KOLAPAKKAMARG-1, TIRUCHENGODE-1, CHITTAMPATTI-1, CHEMBARAMBAKKAM-1, MUSIRI-1, CHEMBARAMBAKKAMARG-1, METTUPATTI-1, MANGALAPURAM-1, ERODE-1, SATYABAMAUTYARG-1, TIRUPPUR-1.   15NOV.2017:HARYANA, CHANDIGARH & DELHI: DUBWALI-2,  FATEHABAD AWS-1; PUNJAB: NAKODAR-2, KAPURTHALA AWS-2, MOGA-2, TARANTARAN AWS -1, MUKTSAR-1, BHATINDA-1, JALANDHAR AWS-1,  ANDAMAN & NICOBAR ISLANDS:NUNCOWRIE-1; ODISHA:PURI­3, GOPALPUR­2, CHANDBALI-1, CUTTACK-1, PARADEEP­1; COASTAL ANDHRA PRADESH:SHAR-3, CHCHAPURAM-2, SULLURPETA-1, KALINGAPATNAM-1, MANDASA-1, PALASA-1, TADA-1, VIJAYAWADA AIRPORT-1; TAMILNADU & PUDUCHERRY:: THANJAVUR-7, THANJAVUR PTO-6, VAZHAPADI-5, ADUTHURAIAWS-5, VENBAVUR-5, TIRUVAIYARU-5, PERAMBALUR-4, TIRUKATTUPALLI-4, KALLAKURICHI-4, THIRUVIDAIMARUTHUR-4, THURAIYUR-4, VALLAM-4, MANGALAPURAM-3, SANKARAPURAM-3, YERCAUD-3, JAYAMKONDAM-3, ATTUR-3, OMALUR-2, ORTHANAD-2, KUMBAKONAM-2, REDHILLS-2, VALANGAIMAN-2, CHETTIKULAM-2, MANNARGUDI-2, KODAVASAL-2, CHOLAVARAM-2, MUTHUPET-2, THATHIENGRPET-2, MADUKKUR-2, PAPANASAM-1, TOZHUDUR-1, ENNORE AWS-1, PANDAVAIYARHEAD-2, THAMMAMPATTY-1, SALEM-1, RASIPURAM-1, NEEDAMANGALAM-1, TRANGAMBADI-1, PONNERI-1, UTHANGARAI-1, THIRUMANUR-1, VIRUDACHALAM-1, PULLAMBADI-1, THAMARAIPAKKAM-1, TIRUVARUR-1, CHIDAMBARAM-1, METTUR-1, NANNILAM-1, SIVAGANGA-1, LALGUDI-1, SENDAMANGALAM-1, SIRKALI-1, K.M.KOIL-1, ANAIKARANCHATRAM-1, SENDURAI-1.
During the week, rainfall over the country as a whole was 74 per cent below the long period average (LPA).Northeast monsoon was weak throughout the week except over Kerala, which was active on 9th November 2017. All the four broad homogeneous regions of India have received deficient rainfall. Details of the rainfall distribution over the four broad homogeneous regions of India are given below:
Regions ActualRainfall (mm) Normal Rainfall (mm) % dep. from LPA
Country as a whole 1.8 6.9 -74%
Northwest India 0.7 1.5 -53%
Central India 0.3 3.5 -91%
South Peninsula 7.3 20.0 -64%
East & Northeast India 0.2 7.2 -97%
Seasonal All India Country as a whole (1st Octoberto15th November2017): For the country as a whole, cumulative rainfall was (-9 per cent) of LPA as on 15th November 2017.Cumulative rainfall was largely deficient over Northwest India. Rainfall was excess/normal over the most of Sub-divisions of East & Northeast India and Southern Peninsula and few Sub-divisions of Central India. Details of the rainfall distribution over the four broad homogeneous regions of India are given below: px;" width="215">Country as a whole89.498.5-9%
Regions Actual Rainfall (mm) Normal Rainfall (mm) % dep.from LPA
Northwest India 1.4 35.4 -96%
Central India 64.1 66.8 -4%
South Peninsula 197.1 209.3 -6%
East & Northeast India 180.0 148.5 21%
Seasonal All India Country as a whole (1st Octoberto15th November2017): For the country as a whole, cumulative rainfall was (-9 per cent) of LPA as on 15th November 2017.Cumulative rainfall was largely defi
Some of the Sub-Divisions of East & northeast India is likely to get above normal rainfall activity, the other regions is likely to get below normal rainfall activity. Outlook for the week (24-30 November 207) India is likely to get below normal rainfall activity.  

Delhi (Safdarjung) Mumbai ( Santacruz) Kolkata

Chennai

Srinagar

Lucknow

Guwahati

Nagpur

Ahmedabad

Hyderabad

Bengaluru

Thiruvananthapuram

HEAVY TO VERY HEAVY RAINFALL (≥7) DURING THE WEEK: 09NOV.2017:TAMILNADU & PUDUCHERRY::PALAYAMKOTTAI-7, KERALA: KURUDAMANNIL-13, PUNALUR-9, PIRAVOM-9, VARKALA-9, PERINTHALMANNA-8, KONNI-8, KOLLAM-8, PATTAMBI-7, PERUMBAVUR-7.   10NOV.2017:NIL   11NOV.2017:TAMILNADU & PUDUCHERRY::VEDARANYAM-13, NAGAPATTINAM-9, MARAKKANAM-7;   12NOV.2017:NIL   13NOV.2017: COASTAL ANDHRA PRADESH: TADA-8; TAMILNADU & PUDUCHERRY ENNORE AWS-11, PONNERI-7, CHENNAI(N)-7, MADAVARAM AWS-7   14 NOV. 2017: COASTAL ANDHRA PRADESH: SHAR-9, SULLURPETA- 8,TADA-7, TAMILNADU & PUDUCHERRY::PONNERI-7.   15 NOV.2017: TAMILNADU & PUDUCHERRY: :THANJAVUR-7.  

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