Rain activity expected to pick up from Friday July 17, 2015

Rain activity picked up in Goa in the evening of Thursday July 16, and an average rainfall of 20 mm was recorded. This spell is expected to continue and the Blog Vagaries of Weather in its latest post expects Goa to receive around 35 - 45 mm per day from Friday.

The UAC in NW Bay of Bengal and the west coast off shore trough, showing activity in the EUMETSAT image at 10.30 am on Friday July 17, which is beneficial to Goa to some extent.

In the meanwhile, Sanguem became the first Rain Centre in Goa to cross the 50 inches rainfall this season.

The top five rain centres so far are:

The race for the wettest place in Goa for 2015 is still wide open!

Deficient Rains in West Coast of India - Posted July 12, 2015

The latest map of cumulative seasonal rainfall for the country as released by IMD, for rainfall between June 1, 2015 to July 11, 2015, clearly indicates that while rest of the country by and large has received normal or excess rainfall, the west coast of India including Konkan & Goa has received deficient rainfall. This is indicated by red colour in the map:

Rainfall below 19% of normal is categorised as Deficient.

Konkan & Goa sub division is estimated to have received -20% of normal rain during this period, putting it in deficient category. Rainfall deficiency in Goa state is now touching -23% alone.

Rest of India has received good rainfall and overall the departure is only -1%, as per the map above.

The reason for the poor performance of monsoon in the west, is mainly due to weak monsoon trough and weak MJO. Also as seen in July so far, the low in BoB and the monsoon axis being northward, resulted in good rains in North India but poor rains in West. The western disturbance WD from Pakistan also had a field day in NW India, giving good rains, as the monsoon axis remained north bound. El Nino Factor has so far not played much role in the above scenario, in context of rest of India.

The monsoon is expected to remain weak in west, for a few more days, till favourable developement for strengthening of monsoon trough happen.

Monsoon to remain weak over Goa next 5 days - Posted July 2, 2015

Sudden Monsoon activity on July 1 and 2 non-withstanding, Monsoon will remain weak over Goa over next 5 days.

As per the analysis at Vagaries of the Weather Blog:

"Monsoon remains weak in the Sub Continent (barring Eastern states of Odisha/Bengal and NE India. Barring extreme North Pakistan) in the first 15 days of July. Strengthening in the second half will see the rains recovering in the regions"
Please click on this link to know more.

Goa will get intermittent rains over the next 5 days, averaging 10 - 20 mm. Temperature would be around 30 - 25C.

In the meantime, Sanquelim became the first rain centre in Goa on July 2, to exceed 1000 mm this season!

Visit http://weatheringoa.blogspot.in/p/swm-2015-goa-graphs-and-charts.html for
1. Daily updated rainfall figures at all the rain gauge centers in Goa
2. Cummulative Seasonal Rainfall Totals, updated daily, for all the rain gauge centers in Goa

For Daily Rainfall figures at Aquem, Margao as measured by Vagaries Goa digital rain gauge, visit http://weatheringoa.blogspot.in/p/swm-2015-daily-rainfall-chart-for.html