Friday, 24 April 2015

April 23, 2015 - Thunderstorm in Margao

With maximum day temperatures around 35C and Humidity above 80%RH from April 21, isolated  rainfall was experienced in many parts of Goa, particularly late in the evening. The weather has generally remained hot and sultry due to overcast conditions. Cumulus clouds have made their presence felt this week and a thunderstorm was waiting to happen. Particularly because, rains due to wind discontinuity has been widespread east of the Ghats stretching from Interior Maharashtra, Karnatak and into Kerala.


Clouds streaming into Goa from the East around noon on April 21, 2015
However on April 23 late evening, a thunderstorm developed across the Ghats in South Goa and by 9.40 pm heavy rains started lashing Margao, accompanied by Lightening and thunder.

Thunderstorm seen building over South Goa at 21:30 hrs on April 23, 2015


In the next 75 minutes Vagaries Goa Rain Gauge at Aquem, Margao recorded 53 mm (2 inches) rainfall. IMD's Rain Gauge Center in Margao recorded 51.4 mm during the same period. This was heaviest rainfall recorded in Margao since March 1 this year, and the first pre monsoon shower of this year.

IMD's rain centres at Sanguem recorded 23.1 mm and at Canacona 20.6 mm. Panjim recorded only 1.8 mm. Most other places in Goa received only a drizzle or no rainfall, indicating that this thunderstorm was localised to a few place in South Goa, mainly Margao.

Rainfall recorded in 24 hrs ending 0830 hrs April 24, 2015 (Source IMD)
The rains brought down the minimum temperature on April 24 to 25.4C from 28.2C recorded on April 23.

Overcast, hot and humid conditions with occasional isolated showers or thunderstorms are forecast for Goa over the next 4 days.