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Sinlaku Continues to Impact the Marianas; Severe Weather from the Central US to the Northeast; Late-Season Snow in the Northwest

Sinlaku continues to bring destructive winds, widespread heavy rain/flooding, and storm surge to the Marianas. Showers and severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley and to the Central/Southern Plains through Thursday. A front will produce late-season snowfall over the Cascades and Northern Rockies and coastal rain over the Northwest Coast through Thursday. Read More >

Hazardous Weather Conditions

Current conditions at

BLACK ROCK (OKFO3)

Lat: 43.52831°NLon: 121.81601°WElev: 4891.0ft.

NA

33°F

1°C

Humidity 97%
Wind Speed SSW 0 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Last update 15 Apr 12:15 AM PDT
Extended Forecast for

8 Miles SSE Willamette Pass OR

Winter Weather Advisory until April 16, 05:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until April 16, 05:00am

    NOW until 5:00am Thu

    Winter Weather Advisory

  • Overnight

    Low: 33 °F

    Rain/Snow

  • Wednesday

    Wednesday: Snow, possibly mixed with rain, becoming all snow after 9am. The snow could be heavy at times. Temperature falling to around 30 by 5pm. Breezy, with a west wind 14 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    High: 35 °F⇓

    Rain/Snow and
    Breezy then
    Snow

  • Wednesday Night

    Wednesday Night: Snow showers before 3am, then a slight chance of snow between 3am and 4am. Some thunder is also possible. Low around 24. West wind 8 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

    Low: 24 °F

    Snow Showers

  • Thursday

    Thursday: A 50 percent chance of snow. Partly sunny, with a high near 36. Northwest wind around 8 mph. New snow accumulation of less than a half inch possible.

    High: 36 °F

    Chance Snow

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 23. Northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 23 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 48.

    High: 48 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of rain after 11am. Snow level 4900 feet rising to 7000 feet in the afternoon. Partly sunny, with a high near 54.

    High: 54 °F

    Slight Chance
    Rain

Detailed Forecast

Overnight
Snow before 5am, then snow, possibly mixed with rain. Low around 33. Southwest wind 13 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 1 to 2 inches possible.
Wednesday
Snow, possibly mixed with rain, becoming all snow after 9am. The snow could be heavy at times. Temperature falling to around 30 by 5pm. Breezy, with a west wind 14 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Wednesday Night
Snow showers before 3am, then a slight chance of snow between 3am and 4am. Some thunder is also possible. Low around 24. West wind 8 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.
Thursday
A 50 percent chance of snow. Partly sunny, with a high near 36. Northwest wind around 8 mph. New snow accumulation of less than a half inch possible.
Thursday Night
Mostly clear, with a low around 23. Northwest wind 5 to 7 mph becoming calm in the evening.
Friday
Sunny, with a high near 48.
Friday Night
Mostly cloudy, with a low around 31.
Saturday
A slight chance of rain after 11am. Snow level 4900 feet rising to 7000 feet in the afternoon. Partly sunny, with a high near 54.
Saturday Night
A chance of rain. Snow level 7600 feet lowering to 6900 feet after midnight . Mostly cloudy, with a low around 38.
Sunday
Rain likely, mainly after 11am. Snow level 6100 feet. Mostly cloudy, with a high near 52.
Sunday Night
Rain and snow likely. Snow level 6400 feet lowering to 5600 feet after midnight . Mostly cloudy, with a low around 37.
Monday
Rain and snow likely. Snow level 5500 feet rising to 6200 feet in the afternoon. Partly sunny, with a high near 54.
Monday Night
Rain likely. Snow level 6500 feet lowering to 5800 feet after midnight . Mostly cloudy, with a low around 38.
Tuesday
Rain likely. Snow level 5600 feet rising to 6500 feet in the afternoon. Partly sunny, with a high near 53.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles SSE Willamette Pass OR
 43.46°N 121.99°W (Elev. 4862 ft)
Last Update:
11:26 pm PDT Apr 14, 2026
Forecast Valid:
1am PDT Apr 15, 2026-6pm PDT Apr 21, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation