Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Hazardous Weather Conditions

Flood Watch until December 12, 04:00 AM PST

Current conditions at

Aurora State Airport (KUAO)

Lat: 45.24658°NLon: 122.77095°WElev: 194.0ft.

heavy rain,mist

52°F

11°C

Humidity	92%
Wind Speed	NNW 4 MPH
Barometer	30.13 in (1020.32 mb)
Dewpoint	50°F (10°C)
Visibility	2.50 mi
Last update	09 Dec 03:39 AM PST

More Information:

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

Extended Forecast for

Lake Oswego OR

Flood Watch December 9, 03:47am until December 12, 04:00am

Click here for hazard details and duration

Flood Watch

Flood Watch December 9, 03:47am until December 12, 04:00am
NOW until 4:00am Fri
Flood Watch
Overnight
Low: 53 °F
Rain
Tuesday
High: 57 °F
Rain
Tuesday Night
Low: 52 °F
Rain and
Breezy
Wednesday
High: 59 °F
Rain and
Breezy
Wednesday Night
Low: 54 °F
Rain
Thursday
High: 58 °F
Rain Likely
Thursday Night
Low: 50 °F
Chance Rain
then Mostly
Cloudy
Friday
High: 58 °F
Mostly Cloudy

Detailed Forecast

Overnight

Rain. Steady temperature around 53. Southwest wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Tuesday

Rain. High near 57. Northeast wind 6 to 9 mph becoming south southwest in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

Tuesday Night

Rain. Low around 52. Breezy, with a south southwest wind 15 to 17 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

Wednesday

Rain, mainly after 10am. High near 59. Breezy, with a south southwest wind 13 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Wednesday Night

Rain. Low around 54. South southwest wind around 14 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

Thursday

Rain likely, mainly before 4pm. Mostly cloudy, with a high near 58. Chance of precipitation is 70%.

Thursday Night

A 30 percent chance of rain before 10pm. Mostly cloudy, with a low around 50.

Friday

Mostly cloudy, with a high near 58.

Friday Night

Mostly cloudy, with a low around 46.

Saturday

A chance of rain, mainly after 4pm. Mostly cloudy, with a high near 55.

Saturday Night

Rain likely. Mostly cloudy, with a low around 48.