Cold Temperatures for the Eastern U.S.; Lake Effect Snow in the Great Lakes; Heavy Rain in the Pacific Northwest

Cold temperatures will continue across much of the eastern U.S. into today. Heavy lake effect snow continues into today east of Lakes Erie and Ontario. Two Pacific cold fronts will cross the Pacific Northwest early this week followed by another atmospheric river. Heavy rain and gusty winds are expected through midweek, with the potential for renewed urban and river flooding. Read More >

Hazardous Weather Conditions

Flood Watch in effect from December 18, 04:00 AM PST until December 20, 04:00 AM PST

Current conditions at

CANYON CREEK (CYFW1)

Lat: 45.92944°NLon: 122.20278°WElev: 2592.0ft.

49°F

9°C

Humidity	100%
Wind Speed	SE 7 MPH
Barometer	NA
Dewpoint	49°F (9°C)
Visibility	NA
Wind Chill	46°F (8°C)
Last update	15 Dec 03:52 PM PST

More Information:

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

Extended Forecast for

6 Miles N Mount St Helens WA

Flood Watch December 18, 04:00am until December 20, 04:00am

Click here for hazard details and duration

Flood Watch

This Afternoon
High: 46 °F
Showers and
Breezy
Tonight
Low: 40 °F
Rain
Tuesday
High: 47 °F
Rain and
Breezy
Tuesday Night
Low: 32 °F
Heavy Rain
and Windy
then
Rain/Snow and
Very Windy
Wednesday
High: 36 °F
Heavy Snow
and Windy
Wednesday Night
Low: 33 °F
Snow
Thursday
High: 42 °F
Rain/Snow and
Breezy
Thursday Night
Low: 32 °F
Rain/Snow and
Breezy
Friday
High: 36 °F
Snow

Detailed Forecast

This Afternoon

Showers and possibly a thunderstorm. Steady temperature around 46. Breezy, with a west southwest wind around 21 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

Rain likely and possibly a thunderstorm, then rain after 3am. Snow level 4700 feet. Low around 40. West southwest wind 9 to 14 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

Tuesday

Rain. High near 47. Breezy, with a southwest wind 14 to 17 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Tuesday Night

Rain before 1am, then rain and snow. The rain and snow could be heavy at times. Some thunder is also possible. Snow level 6700 feet lowering to 4400 feet after midnight . Low around 32. Very windy, with a south southwest wind 23 to 30 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.

Wednesday

Snow. The snow could be heavy at times. High near 36. Windy, with a west southwest wind 15 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

Wednesday Night

Snow. Low around 33. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

Thursday

Rain and snow, becoming all rain after 1pm. Snow level 3500 feet rising to 5800 feet in the afternoon. High near 42. Breezy. Chance of precipitation is 100%. New snow accumulation of around an inch possible.

Thursday Night

Rain before 10pm, then rain and snow. Snow level 5000 feet lowering to 3600 feet after midnight . Cloudy, with a low around 32. Breezy.

Friday

Snow. Cloudy, with a high near 36.

Friday Night

Snow. Mostly cloudy, with a low around 30.

Saturday

Snow. Cloudy, with a high near 35.

Saturday Night

Snow. Mostly cloudy, with a low around 31.

Sunday

Snow likely. Mostly cloudy, with a high near 38.