The Deluge Has Ended

After nearly 4.5″ of rain in parts of southeastern Connecticut the heavy rain has come to an end. Here’s a look at some of the rain totals across the state – many of which are quite impressive!

  • Westbrook – 4.71″
  • Norwich – 4.46″
  • North Haven – 3.49″
  • Bridgeport (ASOS) – 3.15″
  • North Grosvenordale – 3.12″
  • Hampton – 3.08″
  • West Hartford – 2.22″
  • New Hartford – 2.06″


The rain was focused along a warm front that managed to sneak into southern Connecticut. The winds were out of the south and east in Groton, Westerly, and Westhampton Beach while Providence, Willimantic, and New Haven had northerly winds. An impressive theta-e gradient as well with mid 50s for temperatures and dew points in Groton and low 40s elsewhere in Connecticut.

The Yantic River managed to reach moderate flood stage with 4.5″ of rain through the basin while other rivers in northeastern Connecticut reached minor flooding benchmarks.



Not a surprise to see minor flooding given the setup with a strong low level jet on top of a stalled warm front near the south coast. A nice surge of high precipitable water air moved in overnight all in a region of strong quasi-geostrophic ascent and even a bit of elevated instability. Classic “sultan of sandbag” signal for southeastern Connecticut, Rhode Island, and southeastern Massachusetts.

Serious Flash Flooding Continues

A serious flash flood event has developed in eastern Connecticut from an incredible zone of rain that has basically stalled over the last few hours. While flash flooding can be very difficult to forecast ahead of time – I’m very surprised by this. The ingredients didn’t seem there this morning and computer guidance showed very little rainfall (in fact not even any measurable!!!) in this region for the afternoon.


namNE_sfc_prec_015Regardless of how poorly forecast this was the rain train continues to batter eastern Connecticut. Here’s a look at dual pol estimated rainfall totals from Boston’s radar as of 3:30 this afternoon – nearly 6″ of rain near Franklin!



Stay safe – and don’t drive through flooded roadways today!