இ திய அர GOVERNMENT OF INDIA இ திய வானிைல ஆ ைற INDIA METEOROLOGICAL ம டல வானிைல ஆ ைமய DEPARTMENT 6, க ாி சாைல, ெச ைன - 600006 Regional Meteorological Centre ெதாைலேபசி : 044- 28271951. No. 6, College Road, Chennai–600006
Phone: 044- 28271951.
WEEKLY WEATHER REPORT FOR TAMILNADU, PUDUCHERRY & KARAIKAL FOR THE WEEK ENDING 15 September 2021 / 24 BHADRA 1943 (SAKA)
SUMMARY OF WEATHER Week’s Rainfall:
Large Excess Coimbatore and Nilgiris districts
Excess ------Normal ------Deficient Kanyakumari, Theni and Karaikal area.
Large Deficient Chennai, Cuddalore, Dharmapuri, Dindigul, Erode, Kanchipuram, Krishnagiri, Madurai, Nagapattinam, Namakkal, Pudukkottai, Ramanathapuram, Salem, Thenkasi, Thanjavur, Tirunelveli, Tiruppur, Tiruvallur, Tiruvannamalai, Tiruvarur and Villupuram districts. No rain Ariyalur, Chengalpattu, Kallakurichi, Karur, Mayiladuthurai, Perambalur, Ranipet, Sivagangai, Tirupathur, Thoothukudi, Tiruchirapalli, Vellore and Virudhunagar districts and Puducherry.
CHIEF AMOUNTS OF RAINFALL (IN CM): 09.09.2021:Devala (dist Nilgiris) 16, Pandhalur (dist Nilgiris) 8, Upper Gudalur (dist Nilgiris) 5, Gudalur Bazar (dist Nilgiris) 4, Braiyar Estate (dist Nilgiris) 3, Salem (dist Salem), Harison Estate (dist Nilgiris), Barwood (dist Nilgiris) 2 each, Chinnakalar (dist Coimbatore), Valparai PTO (dist Coimbatore), Periyar (dist Theni), Avalanche (dist Nilgiris), Upper Bhavani (dist Nilgiris) 1 each.
10.09.2021: Yercaud ISRO (dist. Salem) 1.
11.09.2021: Namakkal (dist Namakkal) 3, Thanjai Papanasam (dist Thanjavur), Valangaiman (dist Tiruvarur), Manjalaru (dist Thanjavur), Karaikal (dist Karaikal) 1 each.
12.09.2021: Valparai PTO (dist Coimbatore) 9, Pandhalur (dist Nilgiris) 6, Cincona (dist Coimbatore) 5, Chinnakalar (dist Coimbatore), Devala (dist Nilgiris), Sholayar (dist Coimbatore), Upper Gudalur (dist Nilgiris) 4 each, Gudalur Bazar (dist Nilgiris), Periyar (dist Theni), Valparai Taluk Office (dist Coimbatore), Naduvattam (dist Nilgiris), Harison estate (dist Nilgiris), Barwood (dist Nilgiris), Valparai PAP (dist Coimbatore) 3 each, Upper Bhavani (dist Nilgiris), Edapadi (dist Salem), Avalanche (dist Nilgiris), Braiyar estate (dist Nilgiris) 2 each, Salem (dist Salem), Mettur (dist Salem), Uthukottai (dist Tiruvallur) 1 each.
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13.09.2021: Sholayar (dist Coimbatore), Cincona (dist Coimbatore) 10 each,Chinnakalar (dist Coimbatore), Valparai PTO (dist Coimbatore) 9 each,Valparai Taluk Office (dist Coimbatore), Valparai PAP (dist Coimbatore) 7 each, Naduvattam (dist Nilgiris), Devala (dist Nilgiris) 6 each, Upper Bhavani (dist Nilgiris), Gudalur Bazar (dist Nilgiris), Avalanche (dist Nilgiris), Upper Gudalur (dist Nilgiris) 5 each, Pandhalur (dist Nilgiris) 4,Yercaud (dist Salem), Harison Estate (dist Nilgiris), Sivalogam (dist Kanyakumari) 3 each, Perunchani Dam (dist Kanyakumari), Thekkadi (dist Theni), Periyar (dist Theni), Kothavachery (dist Cuddalore), Puthan Dam (dist Kanyakumari), Karaiyur (dist Pudukottai) 2 each, Glenmorgan (dist Nilgiris), Pollachi (dist Coimbatore), Thuckalay (dist Kanyakumari), Eraniel (dist Kanyakumari), Kuzhithurai (dist Kanyakumari), Nagercoil (dist Kanyakumari), Kottaram (dist Kanyakumari), Kanyakumari (dist Kanyakumari), Kumarapalayam (dist Namakkal), Peravurani (dist Thanjavur), Bhuvanagiri (dist Cuddalore), Omalur (dist Salem), Suralacode (dist Kanyakumari), Tiruchengode (dist Namakkal), Gandarvakottai (dist Pudukkottai), Colachel (dist Kanyakumari), Rasipuram (dist Namakkal), Mangalapuram (dist Namakkal), Thiyagadurgam(dist Kallakurichi), Kalyanallur (dist Kallakurichi) 1 each.
14.09.2021: Pandhalur (dist Nilgiris) 12, Devala (dist Nilgiris) 6, Chinnakalar (dist Coimbatore) 4, Braiyar Estate, Harison Estate (dist Nilgiris) 3 each, Avalanche (dist Nilgiris), Sholayar (dist Coimbatore), Valparai Taluk Office (dist Coimbatore), Gudalur Bazar (dist Nilgiris), Valparai PTO (dist Coimbatore), Upper Bhavani (dist Nilgiris), Upper Gudalur (dist Nilgiris), Cincona (dist Coimbatore), Valparai PAP (dist Coimbatore) 2 each, Chittar (dist Kanyakumari), Pollachi (dist Coimbatore), Naduvattam (dist Nilgiris) 1 each.
15.09.2021: Sholayar (dist Coimbatore), Devala (dist Nilgiris) 2 each, Valparai PTO (dist Coimbatore), Gudalur Bazar (dist Nilgiris), Valparai Taluk Office (dist Coimbatore), Naduvattam (dist Nilgiris), Val;parai PAP (dist Coimbatore) 1 each.
For the period from 01.06.2021 to 15.09.2021:
Large excess Perambalur and Theni districts.
Excess Ariyalur, Coimbatore, Cuddalore, Karur, Nagapattinam, Nilgiris, Ranipettai, Salem, Thanjavur, Tirunelveli, Tirupathur, Tiruvallur, Tiruvannamalai, Thoothukudi, Tiruchirapalli, Vellore and Villupuram districts. Normal Chengalpattu, Chennai, Dharmapuri, Dindigul, Erode, Kallakurichi, Kancheepuram, Krishnagiri, Madurai, Mayiladuthurai, Namakkal, Pudukottai, Ramanathapuram, Sivaganga, Thenkasi, Tiruppur, Tiruvarur and Virudhunagar districts and Puducherry and Karaikal area. Deficient Kanyakumari district. Large ------Deficient No rain -----
2 Chief synoptic features and its associated weather:
Light to moderate Northwesterlies / Westerlies / Southwesterlies prevailed over the region in the lower tropospheric levels during the week.
RAINFALL:
Rainfall occurred at one or two places over the state on all the days during the week.
Dr.N. Puviarasan, SCIENTIST ‘E’ for Deputy Director General of Meteorology Regional Meteorological Centre, College Road, Chennai-6
Date: 15.09.2021
3 . RAINFALL STATEMENT Rainfall For the week ending Seasonal rainfall for the period 15.09.2021 from 01.06.2021 to 15.09.2021 Districts Actual Normal Departure Actual Normal Departure (mm) (mm) (%) (mm) (mm) (%) Ariyalur 0.0 31.7 -100 367.9 307.2 20 Chengalpattu 0.0 28.3 -100 324.7 378.2 -14 Chennai 0.6 27.3 -98 426.7 386.2 10 Coimbatore 72.4 24.5 196 953.0 620.4 54 Cuddalore 1.1 26.8 -96 345.9 283.4 22 Dharmapuri 0.3 40.4 -99 339.1 302.2 12 Dindigul 0.1 32.0 -99 250.0 233.7 7 Erode 0.3 21.6 -99 217.0 194.2 12 Kallakurichi 0.0 39.6 -100 342.7 330.5 4 Kanchipuram 0.8 31.3 -97 405.2 396.6 2
Kanyakumari 13.3 23.2 -43 302.0 420.7 -28 Karaikal 8.8 20.2 -56 213.1 238.6 -11
Karur 0.0 24.0 -100 196.4 140.0 40 Krishnagiri 0.4 36.4 -99 297.0 278.1 7 Madurai 0.3 31.3 -99 279.4 259.3 8 Mayiladuthurai 0.0 26.2 -100 267.1 242.6 10 Nagapattinam 0.9 18.0 -95 253.8 200.6 27 Namakkal 4.0 33.0 -88 299.5 261.2 15 Nilgiris 67.1 37.0 81 1053.6 783.8 34 Perambalur 0.0 23.8 -100 379.0 214.9 76
Puducherry 0.0 36.0 -100 353.1 327.0 8 Pudukottai 0.5 26.2 -98 247.6 266.7 -7 Ramanathapuram 0.2 11.2 -98 102.8 99.4 3 Ranipet 0.0 28.4 -100 468.2 378.6 24 Salem 13.1 33.5 -61 434.4 331.7 31 Sivagangai 0.0 25.4 -100 228.8 248.3 -8 Thenkasi 3.3 8.3 -60 137.0 147.2 -7 Thanjavur 2.8 24.4 -89 303.2 247.3 23 Theni 9.3 18.0 -48 300.5 164.3 83 Tirunelveli 0.3 5.4 -95 90.8 68.6 32 Tirupathur 0.0 37.4 -100 467.5 335.1 40 Tiruppur 0.3 13.9 -98 125.4 105.1 19
Tiruvallur 1.1 29.5 -96 498.6 385.0 29
Tiruvannamalai 0.4 37.6 -99 446.6 363.0 23 Tiruvarur 5.5 23.9 -77 235.4 238.8 -1 Toothukudi 0.0 6.1 -100 66.6 45.4 47 Tiruchirapalli 0.0 26.6 -100 279.0 205.4 36 Vellore 0.0 33.7 -100 505.2 388.1 30 Villupuram 0.2 31.8 -99 439.7 323.3 36 Virudhunagar 0.0 21.1 -100 130.5 140.5 -7 Tamilnadu 5.4 26.3 -79 323.6 269.2 20 Tamilnadu, Puducherry 5.4 26.3 -79 323.5 269.3 20 & Karaikal
Large Excess (LE): +60% and above Excess (E): +20% to 59% Normal (N): +19% to -19% Deficient (D): -20% to -59% Large deficient (LD): -60% to -99% No Rain: -100 %
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