DATE: 19-11-2023 Time of issue: 1230 Hrs IST
WEATHER FORECAST / WARNING FOR NEXT 7 DAYS
Day 3 Day 5
Day 1 Day 2 Day 4 Day 6
Met valid from 0830 valid from 0830
DAYS valid from 1230 hrs valid from 0830 hrs valid from 0830 hrs (24.11.2023)
Sub- hrs IST of hrs IST of
/ IST of 19.11.2023 to IST of 20.11.2023 to IST of 22.11.2023 to &
Division 21.11.2023 to 0830 23.11.2023 to
WARNINGS 0830 hrs IST of 0830 hrs IST of 0830 hrs IST of Day 7
hrs IST of 0830 hrs IST of
20.11.2023 21.11.2023 23.11.2023 (25.11.2023)
22.11.2023 24.11.2023
Rainfall CTN-FWS CTN-FWS
Tamil Nadu/ Distribution FWS FWS FWS
ITN-ISOL ITN-SCT
Puducherry
Heavy rain is likely to Heavy rain is likely
& Karaikal occur at isolated places to occur at isolated
Heavy to very heavy rain
over Chengalpattu, places over Heavy to very
is likely to occur at
Villuppuram, Chengalpattu, heavy rain is likely Heavy to very
isolated places over FWS SCT
Cuddalore, Thanjavur, Kancheepuram, heavy rain is likely
Kanyakumari, to occur at isolated
HRW Tirunelveli,
Tiruvarur, Villuppuram, to occur at isolated
Nagapattinam, Cuddalore, places over places over Theni
Thoothukudi and
Mayiladuthurai, Thanjavur, Tirunelveli and and Dindigul.
Ramanathapuram.
Pudukkottai, Tiruvarur, Tenkasi.
Ramanathapuram, Nagapattinam,
Puducherry and Mayiladuthurai,
Karaikal. Pudukkottai, Heavy rain is likely Heavy rain is
Puducherry and to occur at isolated likely to occur at
Heavy rain is likely to Karaikal. isolated places
occur at isolated places places over
over Pudukkottai,
over Tenkasi, Kanyakumari, Thanjavur,
Virudhunagar,
Thoothukudi, Tiruvarur,
Sivaganga, Pudukkottai,
Virudhunagar, Nagapattinam,
Thanjavur, Tiruvarur,
Mayiladuthurai,
Nagapattinam, Theni, Dindigul,
Karaikal,
Mayiladuthurai and Sivaganga, Madurai Tiruchirappalli,
Karaikal. and Nilgiris, Tiruppur
Ramanathapuram. and Coimbatore.
TSL/TSLG/
TSLH/ TSL TSL TSL TSL TSL
TSLHG
Rainfall
FWS FWS FWS FWS FWS
Distribution
Heavy to very
Heavy rain is likely Heavy to very heavy
Heavy rain is likely to Heavy rain is likely to heavy rain is likely
Kerala & HRW occur at isolated places occur at isolated places
to occur at isolated rain is likely to occur at
to occur at isolated
places isolated places FWS FWS
Mahe places
TSL/TSLG/
TSLH/ TSLG 30-40 TSLG 30-40 TSLG 30-40 TSLG 30-40 TSLG 30-40
TSLHG
Rainfall
SCT SCT SCT SCT FWS
Distribution
Lakshadwee HRW NIL NIL NIL NIL NIL
FWS FWS
p TSL/TSLG/
TSLH/ NIL NIL NIL NIL NIL
TSLHG
Rainfall
ISOL DRY ISOL ISOL FWS
Distribution
Coastal HRW NIL NIL NIL NIL NIL FWS FWS
Karnataka
TSL/TSLG/
TSLH/ NIL NIL NIL NIL NIL
TSLHG
Rainfall
DRY DRY DRY DRY ISOL
North Distribution
Interior HRW NIL NIL NIL NIL NIL ISOL ISOL
Karnataka
TSL/TSLG/ NIL NIL NIL NIL NIL
TSLH/
TSLHG
Rainfall
ISOL ISOL ISOL SCT SCT
Distribution
South Heavy rain is
Heavy rain is likely to
Interior HRW NIL NIL NIL occur at isolated places
likely to occur at
SCT SCT
isolated places
Karnataka
TSL/TSLG/
TSLH/ NIL NIL NIL TSL TSL
TSLHG
Rainfall
ISOL ISOL SCT SCT SCT
Distribution
Coastal NIL NIL Heavy rain is likely
Andhra HRW to occur at isolated NIL NIL
places SCT SCT
Pradesh &
Yanam TSL/TSLG/
TSLH/ NIL NIL TSL TSL NIL
TSLHG
Rainfall
ISOL ISOL ISOL SCT SCT
Distribution
HRW NIL NIL NIL NIL NIL
Rayalaseema SCT SCT
TSL/TSLG/
TSLH/ NIL NIL TSL TSL NIL
TSLHG
Rainfall
DRY DRY DRY DRY ISOL
Distribution
Telangana HRW NIL NIL NIL NIL NIL ISOL ISOL
TSL/TSLG/
TSLH/ NIL NIL NIL NIL NIL
TSLHG
Spatial rainfall distribution
% Stations % Stations
reporting Category reporting Category
Rainfall Rainfall
76-100 Widespread (WS/ most places) 26-50 Scattered (SCT/a few places)
51-75 Fairly Widespread (FWS/ many places) 1 -25 Isolated (ISOL/one or two places)
No Rain Dry
Rainfall intensity
Heavy rain 64.5 – 115.5 mm (7 – 11 cm)
Very heavy rain 115.6 - 204.4 mm (12 - 20 cm)
Extremely heavy rain >204.4 mm (21 cm or more)
Subdivision Warnings colour
WATCH (BE UPDATED)
ALERT (BE PREPARED)
WARNING (TAKE ACTION)
TSL Thunderstorm & Lightning
TSLG Thunderstorm & Lightning with Gusty wind
TSLH Thunderstorm & Lightning with Hailstorm
TSLHG Thunderstorm, Lightning & Hailstorm with Gusty wind
Legends:
North Tamil Nadu (NTN) Chennai, Kancheepuram, Chengalpattu, Tiruvallur, Cuddalore, Villupuram, Tirupattur, Vellore, Ranipet,
districts Kallakurichi, Tiruvannamalai, Krishnagiri, Dharmapuri, Salem, Namakkal, Karur, Erode, Thanjavur,
Tiruvarur, Mayiladuthurai, Nagapattinam, Pudukottai, Nilgiris, Coimbatore, Tiruppur, Tiruchirapalli,
Ariyalur, Perambalur.
South Tamil Nadu (STN) Dindigul, Theni, Virudhunagar, Madurai, Sivagangai, Ramanathapuram, Thoothukudi, Thenkasi,
districts Tirunelveli, Kanyakumari.
Interior Tamil Nadu (ITN) Tirupattur, Vellore, Ranipet, Kallakurichi, Tiruvannamalai, Kancheepuram, Krishnagiri, Dharmapuri,
districts Salem, Namakkal, Karur, Erode, Nilgiris, Coimbatore, Tiruppur, Tiruchirapalli, Ariyalur,
Perambalur, Sivagangai, Virudhunagar, Theni, Dindigul, Madurai, Thenkasi.
North interior Tamil Tirupattur, Vellore, Ranipet, Kallakurichi, Tiruvannamalai, Kancheepuram, Krishnagiri, Dharmapuri,
Nadu (NITN) districts Salem, Namakkal, Karur, Erode, Nilgiris, Coimbatore, Tiruppur, Tiruchirapalli, Ariyalur, Perambalur.
South interior Tamil Sivagangai, Virudhunagar, Theni, Dindigul, Madurai, Thenkasi.
Nadu (SITN) districts
Coastal Tamil Nadu Tiruvallur, Chennai, Chengalpattu, Villupuram, Cuddalore, Thanjavur, Tiruvarur, Mayiladuthurai,
(CTN) districts Nagapattinam, Pudukottai, Ramanathapuram, Thoothukudi, Tirunelveli, Kanyakumari.
North Coastal Tamil Tiruvallur, Chennai, Chengalpattu, Villupuram, Cuddalore, Thanjavur, Tiruvarur, Mayiladuthurai,
Nadu (NCTN) districts Nagapattinam, Pudukottai.
South Coastal Tamil Ramanathapuram, Thoothukudi, Tirunelveli, Kanyakumari.
Nadu (SCTN) districts
Delta Districts Thanjavur, Tiruvarur, Nagapattinam, Mayiladuthurai, Pudukottai and Karaikal area.
Delta and Adjoining Thanjavur, Tiruvarur, Nagapattinam, Mayiladuthurai, Pudukottai, Karaikal and Tiruchirapalli, Perambalur,
districts Ariyalur, Cuddalore.
Western Ghat districts Nilgiris, Coimbatore, Tiruppur, Theni, Dindigul, Thenkasi, Virudhunagar
PDC Puducherry and Karaikal
