Heavy Lake Effect Snow Downwind of Lakes Erie and Ontario; Fire Weather Concerns in the Southern Plains and Southeast

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. There is increasing confidence in snow squalls causing bursts of snow & gusty winds on New Year's Eve. Elevated fire weather conditions will continue today over parts of the Southern Plains and across much of the Southeast U.S. Read More >

Hazardous Weather Conditions

Air Stagnation Advisory in effect from December 29, 12:03 PM PST until January 1, 12:00 PM PST

Current conditions at

Hermiston, Hermiston Municipal Airport (KHRI)

Lat: 45.82583°NLon: 119.26111°WElev: 636.0ft.

Clear

21°F

-6°C

Humidity	92%
Wind Speed	S 4 MPH
Barometer	30.54 in (1034.2 mb)
Dewpoint	19°F (-7°C)
Visibility	10.00 mi
Wind Chill	15°F (-9°C)
Last update	30 Dec 08:00 AM PST

More Information:

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

Extended Forecast for

8 Miles E Umatilla OR

Air Stagnation Advisory until January 1, 12:00pm

Click here for hazard details and duration

Air Stagnation Advisory

Air Stagnation Advisory until January 1, 12:00pm
NOW until 12:00pm Thu
Air Stagnation Advisory
Today
High: 39 °F
Becoming
Sunny
Tonight
Low: 23 °F
Mostly Clear
then Patchy
Freezing Fog
Wednesday
High: 34 °F
Patchy
Freezing Fog
then Partly
Sunny
Wednesday Night
Low: 23 °F
Patchy
Freezing Fog
New Year's Day
High: 35 °F
Slight Chance
Rain/Snow and
Patchy
Freezing Fog
Thursday Night
Low: 28 °F
Chance Rain
Friday
High: 40 °F
Chance Rain
Friday Night
Low: 33 °F
Chance Rain

Detailed Forecast

Today

Partly sunny, then gradually becoming sunny, with a high near 39. Light north wind.

Tonight

Patchy freezing fog after 1am. Increasing clouds, with a low around 23. Calm wind.

Wednesday

Patchy freezing fog before 10am. Partly sunny, with a high near 34. Calm wind.

Wednesday Night

Patchy freezing fog before 10pm, then patchy freezing fog after 4am. Mostly cloudy, with a low around 23. Calm wind.

New Year's Day

A slight chance of rain and snow before 1pm, then a slight chance of rain. Patchy freezing fog before 7am. Mostly cloudy, with a high near 35. Calm wind. Chance of precipitation is 20%.

Thursday Night

A 50 percent chance of rain. Cloudy, with a low around 28.

Friday

A 30 percent chance of rain. Mostly cloudy, with a high near 40.

Friday Night

A 50 percent chance of rain. Mostly cloudy, with a low around 33.

Saturday

A 30 percent chance of rain, mainly before 10am. Mostly cloudy, with a high near 47.

Saturday Night

A slight chance of rain. Mostly cloudy, with a low around 33.

Sunday

Partly sunny, with a high near 46.