Storm Brewing: Heavy Rains Forecast for the Area

Updated, from Greenwich Police 1pm, Jan 9

A powerful winter storm passing to our west Tuesday night will bring moderate to heavy rainfall and strong winds to our area. High wind warnings are in effect for coastal and southeastern Connecticut…Flood Watches are in effect for the entire state.

A High Wind Warning will go into effect at 6:00pm for New London county and coastal areas of Fairfield, New Haven, and Middlesex counties. A Wind Advisory will also go into effect for the rest of the state.

Flood Watches have been issued for the entire state and a Coastal Flood Warning is in effect for coastal Middlesex and New London counties.

A powerful winter storm will track across the Great Lakes tonight. Our area will be on the eastern side of this storm, and we can expect strong damaging winds and heavy rain to melt much of the snowpack from yesterday’s storm. The melting snow (equal to 1” of water) may add to the 2” –4” of expected rainfall and could cause moderate urban and small stream flooding later tonight and early Wednesday morning.

This Evening: Rain along with southeast winds are expected to move into the state between 4:00 –7:00pm. The winds and rainfall are forecast to quickly pick up with moderate rainfall and winds gusting to 40 –50 MPH along the coast and 35 –45 MPH inland by midnight.

Overnight: Strong winds gusting to 50 –65 MPH at times combined with moderate to heavy rainfall at times are expected to quickly melt the snowpack in southern CT leading to moderate urban (e.g. basement flooding) and small stream flooding. The strong winds may cause a minor to moderate number of power outages.

Wednesday: The rain and wind are expected to taper off around daybreak. However, river flooding is expected to continue thru the day as melting snow in central and northern CT contributes additional water. The level of flooding will depend on how much of the snowpack is melted. If the entire snowpack melts, moderate river flooding may occur. Minor/moderate coastal flooding is also expected during high tide between 9:00 AM and noon in Long Island Sound.

From Greenwich Police, 8:15am, Jan 9

The Town of Greenwich Emergency Management Director is monitoring the next storm that may impact our area.

The current rain storm has the potential to bring significant rain and heavy wind to our area creating flooding concerns and electrical interruptions. Eversource has activated its action plans in the event power restoration efforts are needed following the storm.

Currently, there is a High Wind Warning now in effect for Long Island, NYC, and coastal Connecticut from 6:00pm Tuesday to 6:00am on Wednesday.

  • Coastal Flood Warnings and Advisories are now in effect for much of the coast, Tuesday evening and Wednesday in the morning
  • Widespread moderate to major threat of river flooding, Tuesday evening and Wednesday in the morning,
  • Widespread minor to moderate urban and poor drainage flooding, Tuesday evening and Wednesday in the morning,
  • Strong to damaging winds for the coast, late Tuesday into Wednesday.

Residents should be prepared for possible multi-day electrical service interruptions. Flooding is also considered a possibility because, in addition to the heavy rains, warm temperatures will be melting the snow that fell over the weekend.

Please use caution and stay off the roads during the storm if possible. If you must travel, please do so carefully.

For people who lose electrical service, they will be able to use the John Margenot Atrium at the Public Safety Complex to charge devices and people can also use Town Hall, the libraries, and the civic center during normal hours of operation.

Updates will be provided as needed during the storm.