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.

14°F

-10°C

Humidity	88%
Wind Speed	E 14 mph
Barometer	29.85 in (1013.5 mb)
Dewpoint	11°F (-12°C)
Visibility	NA
Wind Chill	-1°F (-18°C)
Last update	24 Dec 5:56 am EST

More Information:

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

Extended Forecast for

5 Miles NE Rockwood ME

Winter Weather Advisory December 24, 06:31am until December 24, 12:00pm

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory December 24, 06:31am until December 24, 12:00pm
NOW until 12:00pm Wed
Winter Weather Advisory
Today
High: 20 °F
Snow then
Partly Sunny
Tonight
Low: 10 °F
Mostly Cloudy
then Snow
Likely
Christmas Day
High: 23 °F
Snow Likely
then Chance
Snow
Thursday Night
Low: -2 °F
Mostly Cloudy
and Blustery
then Partly
Cloudy
Friday
High: 10 °F
Cold
Friday Night
Low: -4 °F
Partly Cloudy
Saturday
High: 14 °F
Partly Sunny
Saturday Night
Low: 1 °F
Partly Cloudy

Detailed Forecast

Today

Snow, mainly before 9am. High near 20. East wind around 6 mph becoming calm in the afternoon. Chance of precipitation is 90%. Total daytime snow accumulation of 1 to 3 inches possible.

Tonight

Snow likely, mainly after 4am. Increasing clouds, with a low around 10. Calm wind becoming southwest around 5 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. South wind 6 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

Thursday Night

Mostly cloudy, then gradually becoming mostly clear, with a low around -2. Wind chill values as low as -21. Blustery, with a northwest wind 16 to 21 mph, with gusts as high as 34 mph.

Friday

Sunny and cold, with a high near 10. Northwest wind 8 to 14 mph, with gusts as high as 25 mph.

Friday Night

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

Saturday

Partly sunny, with a high near 14. North wind around 5 mph becoming calm in the morning.

Saturday Night

Partly cloudy, with a low around 1.

Sunday

Mostly sunny, with a high near 24.

Sunday Night

Snow, mainly after midnight. Low around 12. Chance of precipitation is 80%.