Friday 20 June 2014

Heavy rains of June 19 help reduce the seasonal deficit

The heavy rains that lashed Goa on June 19, saw 5 rain stations recording more than 100 mm rainfall in 24 hrs ending 0830 hrs June 20, as below, including Sanguem in South Goa with 111.3 mm (not in the cumulative table below).


It also helped Valpoi at the base of the western Ghats, the rainfall topper every year, record the heaviest rainfall this year and climb up the charts to 5th rank!

As per the data of IMD at http://imdgoa.gov.in/images/weather_daily/swm.png the rainfall departure from normal is only -12%:


IMD Goa has started giving data for the whole state based on  area weighted average for South Goa and North Goa, which is a welcome move. Earlier (and even to some extent now) the rainfall recorded at Panaji was declared to be the rainfall for Goa state!

This chart of summary based on area weighted average illustrates the point:


It is seen that Goa received good rains for the week ending June 18 and the rains on June 19/20 would have further reduced the deficit!

However generally rains have taken a breather today on June 20 and Panjim recorded only 0.1 mm from 0830 to 1730 hrs!

It has to be seen if the weakened trough on west coast as explained in www.vagaries.in will persist and put brakes on further rainy days like the one on June 19!