Hour-By-Hour Forecast Of 2-Day Powerful, Pre-Christmas Storm For Connecticut

CONNECTICUT — A 2-day major storm is set to begin Thursday evening and before it ends Connecticut could see 2-3 inches of rain, 55 mph wind gusts, and numerous power outages as we head into the holiday weekend.

Temperatures will fall from the 50s on Friday morning to the teens by late Friday, and the cold temperatures will remain throughout the weekend. The two major concerns are the expected power outages and flash freeze conditions late Friday and Saturday morning.

The National Weather Service has issued a wind advisory statewide, a coastal flood warning is in effect for the I-95 corridor towns and a flood watch is in effect for Litchfield County.

"This morning is fine, but our sky becomes overcast," said Chief Meteorologist Mark Dixon with Scot Haney. "Then, things start to go downhill during the afternoon hours as a significant storm system moves in. Precip begins, at the onset and briefly, there could be a little wintry mix; otherwise, it’s rain." (Watch the WFSB 3 TV weather forecast here).

Here are the posted advisories, watches and warnings as posted by the National Weather Service. Also see below for an hour-by-hour weather forecast.

Southern Connecticut:

A wind advisory is in effect from 10 p.m. Thursday until 10 p.m. Friday. "Southeast to South winds 20 to 30 mph with gusts up to 55 mph expected."

Coastal sections of southern Connecticut:

A coastal flood warning is in effect from 8 a.m. to 1 p.m. Friday. "One to two and a half feet, locally three feet of inundation above ground level expected in vulnerable areas near the waterfront and shoreline."

Hartford, Tolland and Windham County:

A wind advisory is in effect from 1 a.m. until 7 p.m. Friday. "Southeast winds 15 to 25 mph with gusts up to 50 mph expected.

Litchfield County:

A flood watch is in effect from Friday morning through Saturday morning. A wind advisory is in effect from 10 p.m. Thursday until 6 p.m. Friday. "Southeast winds 15 to 25 mph with gusts up to 50 mph possible."

Hour-by-hour forecast details for coastal sections of southern Connecticut:

• 4 p.m.: 44 degrees; 28 mph wind gusts
• 6 p.m.: 44 degrees; 28 mph wind gusts
• 9 p.m.: 44 degrees; 36 mph wind gusts
• Midnight: 48 degrees; 43 mph wind gusts
• 3 a.m.: 51 degrees; 47 mph wind gusts
• 6 a.m.: 52 degrees; 45 mph wind gusts
• 9 a.m.: 49 degrees; 45 mph wind gusts
• Noon: 47 degrees; 49 mph wind gusts
• 3 p.m.: 37 degrees; 45 mph wind gusts
• 6 p.m.: 27 degrees; 38 mph wind gusts
• 9 p.m.: 20 degrees; 34 mph wind gusts
• Midnight: 17 degrees; 31 mph wind gusts

Precipitation timeline: Rain is forecast to be falling around 4 p.m. It is forecast to be very light up until 8 p.m. After 8 p.m. and through 7 a.m. Friday about two inches of rain is forecast to fall. After 7 a.m. Friday, another 0.25 inch of rain is forecast until it ends at 3 p.m. Some thunder is forecast to mix in too in the overnight hours and also on Friday afternoon.

Hour-by-hour forecast details for interior sections of southern Connecticut:

• 4 p.m.: 42 degrees; 24 mph wind gusts
• 6 p.m.: 42 degrees; 24 mph wind gusts
• 9 p.m.: 42 degrees; 32 mph wind gusts
• Midnight: 45 degrees; 41 mph wind gusts
• 3 a.m.: 50 degrees; 47 mph wind gusts
• 6 a.m.: 53 degrees; 45 mph wind gusts
• 9 a.m.: 51 degrees; 44 mph wind gusts
• Noon: 48 degrees; 48 mph wind gusts
• 3 p.m.: 39 degrees; 44 mph wind gusts
• 6 p.m.: 28 degrees; 37 mph wind gusts
• 9 p.m.: 20 degrees; 32 mph wind gusts
• Midnight: 17 degrees; 29 mph wind gusts

Precipitation timeline: Rain is forecast to be falling around 4 p.m. It is forecast to be very light up until 8 p.m. After 8 p.m. and through 7 a.m. Friday about two inches of rain is forecast to fall. After 7 a.m. Friday, another 0.25 inch of rain is forecast until it ends at 3 p.m. Some thunder is forecast to mix in too in the overnight hours and also on Friday afternoon.

Hour-by-hour forecast details for northern Connecticut:

• 4 p.m.: 38 degrees; 23 mph wind gusts
• 6 p.m.: 38 degrees; 23 mph wind gusts
• 9 p.m.: 39 degrees; 33 mph wind gusts
• Midnight: 42 degrees; 40 mph wind gusts
• 3 a.m.: 47 degrees; 44 mph wind gusts
• 6 a.m.: 49 degrees; 43 mph wind gusts
• 9 a.m.: 52 degrees; 43 mph wind gusts
• Noon: 49 degrees; 44 mph wind gusts
• 3 p.m.: 42 degrees; 45 mph wind gusts
• 6 p.m.: 30 degrees; 38 mph wind gusts
• 9 p.m.: 20 degrees; 33 mph wind gusts
• Midnight: 15 degrees; 30 mph wind gusts

Precipitation timeline: Rain is forecast to be falling around 6 p.m. It is forecast to be very light up until 9 p.m. After 9 p.m. and through 9 a.m. Friday about two inches of rain is forecast to fall. After 9 a.m. Friday, another 0.25 inch of rain is forecast until it ends at 2 p.m. Some light snow is forecast around 5 p.m. before the precipitation ends for good around 8 p.m. Friday.