Winter Storm Update from DESPP / DEMHS, 11:15AM 1/4/18


At 11:00 AM radar showed heavy snow falling across most of the state. North and Northeast winds are currently sustained at 25 MPH with gusts to 35 – 45 MPH at times. Eversource and UI are reporting a total of 450 customers without power across the state. Total snowfall currently ranges between 6 – 10 inches across the state. The following forecast is based on a blend of the GFS, HRRR and NAM models which are in good agreement:

This Afternoon: Heavy snow at times with snowfall rates between 1” – 3” per hour until 3:00 PM. The snow intensity is expected to slowly taper down to moderate snow by 4:00 PM and to light snow by 6:00 PM. However some bands of heavier snow could persist into this evening in a few towns. Strong winds gusting to 45 – 55 MPH at times will cause blowing and drifting of the snow and also reduce visibility to near zero at times. The strong winds may also cause some additional power outages. A major impact is possible for the afternoon rush hour with 2 – 4 inches of snow on most roads and moderate snow falling.

This Evening and Overnight: The snow is forecast to end from west to east between 6:00 – 9:00 PM with considerable blowing and drifting of snow continuing overnight. Bitterly cold conditions are expected with lows between 0 F and 10 above and winds gusting to 30 – 40 MPH at times causing wind chills to drop to -20 F at times.

Friday and Saturday: Bitterly cold and windy with highs around 10 F and overnight lows between 0 and -10 F. Wind chills are forecast to range from around -10 F during the days down to -20 to -30 F at night.