Heavy Rainfall to Bring Flooding Threat to California; Heavy Snow in the Sierra

A strong atmospheric river will bring heavy rainfall to California through the holiday week. The heaviest rainfall is expected on Wednesday in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall is expected in the Sierra Nevada from the atmospheric river, raising concerns for major snow‐load impacts. Travel may be difficult to impossible over the passes. Read More >

Hazardous Weather Conditions

Current conditions at

Greenville (KGNR)

Lat: 45.46°NLon: 69.55°WElev: 1394ft.

13°F

-11°C

Humidity	88%
Wind Speed	E 14 mph
Barometer	29.82 in (1012.7 mb)
Dewpoint	10°F (-12°C)
Visibility	NA
Wind Chill	-2°F (-19°C)
Last update	24 Dec 4:56 am EST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

3 Miles NNW Rockwood ME

Winter Weather Advisory December 24, 05:25am until December 24, 12:00pm

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory December 24, 05:25am until December 24, 12:00pm
NOW until 12:00pm Wed
Winter Weather Advisory
Overnight
Low: 13 °F
Snow
Wednesday
High: 20 °F
Snow then
Partly Sunny
Wednesday Night
Low: 10 °F
Mostly Cloudy
then Snow
Likely
Christmas Day
High: 23 °F
Snow Likely
then Chance
Snow
Thursday Night
Low: -2 °F
Partly Cloudy
and Windy
Friday
High: 10 °F
Cold
Friday Night
Low: -4 °F
Partly Cloudy
Saturday
High: 14 °F
Partly Sunny

Detailed Forecast

Overnight

Snow. Low around 13. East wind around 9 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 3 to 5 inches possible.

Wednesday

Snow, mainly before 9am. High near 20. Northeast wind 5 to 8 mph becoming calm in the afternoon. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

Wednesday Night

Snow likely, mainly after 4am. Increasing clouds, with a low around 10. Calm wind becoming southwest around 6 mph after midnight. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

Christmas Day

Snow likely, mainly before 2pm. Mostly cloudy, with a high near 23. Wind chill values as low as -1. South wind 6 to 11 mph becoming northwest 12 to 17 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

Thursday Night

Partly cloudy, with a low around -2. Windy, with a northwest wind 22 to 26 mph, with gusts as high as 43 mph.

Friday

Sunny and cold, with a high near 10. Northwest wind 10 to 18 mph, with gusts as high as 32 mph.

Friday Night

Partly cloudy, with a low around -4. North wind 6 to 8 mph.

Saturday

Partly sunny, with a high near 14.

Saturday Night

Partly cloudy, with a low around 1.

Sunday

Mostly sunny, with a high near 24.