Summer 2018 notched up a couple of levels over Tamil Nadu as Monday saw hottest day of the year recorded in many IMD observatories in the Interior areas of the state. Salem recorded 40.6°C yesterday, the first time it crossed 40°C this year while Coimbatore & Dharmapuri also recorded their highest temperatures so far in 2018. For the first time this year 5 IMD observatories crossed 40°C, Salem, Karur Paramathi, Tiruchirappalli AP, Vellore & Tiruttani being those that crossed 40°C.
Models indicate there is unlikely to be any major relief for the next couple of days with possibly Friday providing the first opportunity for some reduction in temperatures across the state. As has been the case for the past few days its going to be West Interior Tamil Nadu along with the districts of Karur,Tiruchirappalli & parts of Thanjavur that could see temperatures stay around 40°C
The last few days have seen South Tamil Nadu stay relatively better off compared to the rest of the state though today models indicate large parts of Virudhunagar, Madurai & Thoothukudi districts likely to be under the influence of hot weather. A few places in these districts are expected to be closer to 40°C if not cross.
As is the trend places in South Interior Karnataka & along the Western Ghats of Tamil Nadu are likely to see late afternoon thunderstorms. Going by models we could possibly expect a few places around Mysore / Hassan / Kodagu could get a spell or two of heavy rains.