Sunday, February 17, 2013

Rare February Thunderstorm threatens Chennai

Based on 1969-2010 averages, Chennai receives an average rainfall of 16 mm during February. In the last 13 years (from 2000),  Chennai had received negligible rains during February except in 2000 and 2011.

During February 2000, Chennai got 213 mm rainfall and in February 2011, 89 mm of rainfall. Chennai all time rainfall record for the month of February is 378 mm recorded in 1984 with 24 hrs rainfall record in the same year of 294 mm.

This year rainfall in February 2013, may not break all these records but still the Numerical Models have predicted significant rains from 15th to 18th. Rains with such continuity is very rare for February.

The rainfall recorded around Chennai region from the first batch of Thunder storms on 16.02.2013 evening till midnight 12.00 pm are as follows. Poondi Agro – 53, Tiruvallur - 26, Tiruttani – 19, Ellapuram – 18, Chembarabakkam Lake - 17, Red Hills – 15, Avadi – 14, Sholliganallur - 12, Poonamalle - 11, Kolapakkam - 9, Puzhal - 8, Madhavaram - 7, Meenambakkam - 6, Marina Beach – 5 Nungambakkam – 4, Ennore – 5 and Perungudi - 4

All the above rainfall readings are about to change significantly. Massive Thunder Storm with nearly 400 km in wide is approaching Chennai.

Image

Chennai is expected to very heavy rains from this incoming Thunderstorm. People are expected to see Monsoon like conditions on Sunday morning.

Sunday, February 3, 2013

Top All India Rainfall (Winter Season) from 01.01.13 to 31.01.13


 in mm (min 100 mm)

 All updates will be given bi-weekly
  1. Nancowry (Nicobar Islands) - 205
  2. Vedaranyam (Tamil Nadu) - 199 
  3. Car Nicobar (Nicobar Islands) - 157 
  4. Kalpa (Himachal Pradesh) - 151
  5. Naraingarh (Harayana) - 150
  6. Shimla (Himachal Pradesh) - 119
  7. Dehradun (Uttarakhand) - 119 
  8. Sirmaur (Himachal Pradesh) - 118
  9. Solan (Himachal Pradesh) - 114
  10. Minicoy (Lakshwadeep Islands) - 105 
  11. Colachel (Tamil Nadu) - 100 
  12. Kalsi (Uttarakhand) - 100 
  13. Nahan (Himachal Pradesh) - 100
  14. Bhuntar (Himachal Pradesh) - 100