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.

51°F

11°C

Humidity	100%
Wind Speed	SSE 11 MPH
Barometer	NA
Dewpoint	51°F (11°C)
Visibility	NA
Last update	15 Dec 01:52 PM PST

More Information:

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

Extended Forecast for

4 Miles SSE 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: 48 °F
Showers and
Breezy
Tonight
Low: 40 °F
Rain
Tuesday
High: 47 °F
Heavy Rain
Tuesday Night
Low: 33 °F
Windy. Heavy
Rain then
Rain/Snow
Wednesday
High: 35 °F
Rain/Snow and
Breezy
Wednesday Night
Low: 33 °F
Rain/Snow
Thursday
High: 40 °F
Rain/Snow
Thursday Night
Low: 34 °F
Heavy Rain
then
Rain/Snow
Friday
High: 35 °F
Snow

Detailed Forecast

This Afternoon

Showers likely and possibly a thunderstorm before 3pm, then a chance of showers and thunderstorms between 3pm and 4pm, then showers and possibly a thunderstorm after 4pm. High near 48. Breezy, with a southwest wind around 18 mph, with gusts as high as 34 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Tonight

Rain likely and possibly a thunderstorm, then rain after 3am. Snow level 4800 feet. Low around 40. West southwest wind 6 to 11 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

Tuesday

Rain. The rain could be heavy at times. High near 47. Southwest wind 10 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Tuesday Night

Rain before 4am, then snow, possibly mixed with rain. The rain and snow could be heavy at times. Some thunder is also possible. Snow level 6800 feet lowering to 4500 feet after midnight . Low around 33. Windy, with a south southwest wind 20 to 25 mph, with gusts as high as 49 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.

Wednesday

Snow, possibly mixed with rain before 7am, then snow between 7am and 1pm, then rain and snow after 1pm. The snow could be heavy at times. High near 35. Breezy, with a west southwest wind 11 to 20 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

Wednesday Night

Rain and snow. Snow level 3000 feet. Low around 33. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

Thursday

Rain, possibly mixed with snow, becoming all rain after 1pm. The rain could be heavy at times. Snow level 3500 feet rising to 5800 feet in the afternoon. High near 40. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

Thursday Night

Rain before 1am, then rain and snow. The rain could be heavy at times. Snow level 5200 feet lowering to 3700 feet after midnight . Cloudy, with a low around 34.

Friday

Snow. Snow level 2700 feet. Cloudy, with a high near 35.

Friday Night

Snow. The snow could be heavy at times. Mostly cloudy, with a low around 31.

Saturday

Rain and snow. The snow could be heavy at times. Cloudy, with a high near 34.

Saturday Night

Rain and snow. Mostly cloudy, with a low around 31.

Sunday

Snow likely. Snow level rising to 3100 feet in the afternoon. Mostly cloudy, with a high near 36.