Thread by @DombivliCentYT

This is the track of Tropical Cyclone Phyan ( 2009 ) the last major Cyclonic system to make landfall near Mumbai at a good strength, lot of people don't remember this. #Nisarg is also quite similar in its track 1/

Reports by @VagariesWeather at the time. Personally it is the only Cyclonic Storm i remember that Mumbai has experienced in past 2 Decades, i could be wrong 2/

10 Years ago lots of Mumbai suburbs didn't have rain roofs 3/

Now we have widespread utilization of roofs 4/

Cyclones are a novelty in Mumbai, but we are quite adapt to Cyclone grade rains of +150mm rains except the winds.
#Nisarg will be same widespread rain, @NASARain estimates shows the storm is a very wet storm wth widespread 75mm over 1000 km2 and pockets wth 180mm upto 300 km2 5/

180mm to 230mm rains also present in small areas. From personal experience i feel this estimate is usually less than the actual amount, would not be surprised if one or two stations clock 300mm rains but mostly will be around 100-150mm 6/

But the main killer in cyclones is storm surge and the flying objects 👇 This was when Vayu was 400-500 km of Mumbai coast and 58kmph peak winds, we are expecting peak winds 120 kmph according to IMD, it could lead to widespread tree fall and falling hoardings 7/

Storm surge: The areas marked in read are the 3 high tides that coincides with the Landfall of storm. IMD Expects additional 0.5 to 1m above the normal sea level. so a worst case scenario of 5 meters height cannot be ruled out. 8/

What You should do:

1. Dont drive on 3rd June at all, Visiblity will be very poor because of rain and wind.
2. Stay@home to prevent injury from tree fall.
3. Drink boiled water during Cyclone bcoz water contamination is possible after excess rainfall.
4. Open gutters
9/

5. Keep phone charged in case of emergency.
6. You probably also have enough food stocked up already because of COVID
7. Help animals shelter (because good human)

No need to panic, this is routine cyclone prep just to keep yourself safe. don't be a hero #StayHome

mausam.imd.gov.in/imd_latest/con…