Latest news with #SeaSurfaceTemperature
Time of India
27-05-2025
- Climate
- Time of India
TNAU forecasts normal southwest monsoon in Tamil Nadu
COIMBATORE: Tamil Nadu Agricultural University (TNAU) has forecast a normal southwest monsoon from June to September for most districts in Tamil Nadu this year. Near normal rainfall is expected in Coimbatore, Tirupur, Karur, Namakkal, Tenkasi, Tirunelveli, Tuticorin and Kanyakumari districts, according to TNAU. As per the seasonal forecast released by the varsity on Tuesday, Chennai would receive 430 mm of rainfall against its normal rainfall of 440 mm, while Coimbatore would receive 185 mm of rainfall against 210 mm between June and September 2025. The forecast was developed based on the Southern Oscillation Index and Sea Surface Temperature values of the Pacific and Indian Oceans using Australian Rainman International V43 software at the Agro Climate Research Centre of TNAU, said a statement. The forecast said Madurai would receive 298 mm of rainfall against its normal average of 325 mm and Trichy would receive 260 mm against 277 mm. Among all the districts in TN, the Nilgiris is expected to receive the highest rainfall of 860 mm, followed by Kancheepuram (462 mm) and Chengalpet (450 mm). Tuticorin would receive the lowest rainfall of 59 mm against its normal of 67 mm. Tirupur and Erode are forecast to receive 130 mm and 245 mm of rainfall, respectively, while Salem would receive 410 mm, according to TNAU.
The Hindu
27-05-2025
- Climate
- The Hindu
TNAU releases district-level rainfall forecast for Southwest monsoon
Tamil Nadu Agricultural University (TNAU), Coimbatore, on Tuesday released the district-level seasonal rainfall forecast for Southwest Monsoon season, 2025 (June to September). The rainfall forecast was calculated based on the Southern Oscillation Index and Sea Surface Temperature values of Pacific and Indian Oceans by using Australian Rainman International V.4.3. software at the university's Agro Climate Research Centre. The TNAU presented its forecast at 60% probability level. Normal rainfall (±10 per cent deviation from long term rainfall) is expected in most of the districts in Tamil Nadu. Near normal rainfall (-10 per cent deviation from the long-term rainfall) is expected in Coimbatore, Tiruppur, Karur, Namakkal, Thenkasi, Tirunelveli, Tutucorin and Kanyakumari districts of Tamil Nadu. The predicted rainfall (in mm) have been grouped under different zones. North Eastern Zone (Normal rainfall in mm, predicted rainfall, and percent deviation in brackets): Chennai (440, 430, -2), Chengalpattu (450, 450, 0), Cuddalore (360, 370, 3), Kallakurichi (410, 385, -6), Kancheepuram (479, 462, -4), Ranipet (450, 430, -4), Tiruvallur (456, 440, -4), Tirupathur (416, 400, -4), Tiruvannamalai (449, 449, 1), Villpuram (405, 405, -5), Vellore (453, 422, -7). West zone: Coimbatore (210, 185, -12), Erode (260, 245, -6), Tiruppur (151, 130, -14). North West zone: Dharmapuri (392, 380, -3), Krishnagiri (375, 377, 1), Namakkal (336, 300, -11), Salem (421, 410, -3). Cauvery Delta zone: Ariyalur (377, 355, -6), Karur (199, 175, -12), Mayiladuthurai (295, 300, 2), Nagapattinam (279, 267, -4), Perambalur (279, 269, -4), Thanjavur (314, 315, 0), Tiruvarur (302, 280, -7), Tiruchirapalli (277, 260, -6). Southern Zone: Dindigul (308, 296, -4), Madurai (325, 298, -8), Pudukkottai (330, 326, -1), Ramanathapuram (135, 135, 0), Sivaganga (417, 421, 1), Theni (215, 205, -5), Tenkasi (174, 150, -14), Tuticorn (67, 59, -12), Tirunelveli (128, 108, -16), Virudhunagar (190, 175, -8). Hilly Zone: The Nilgiris (875, 860, -2).
