Super Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather Threat from the Southern Plains to the Great Lakes

Super Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, thunderstorms, and coastal impacts to the Marianas Islands into Wednesday. Typhoon conditions are likely over the Northern Mariana Islands. Severe thunderstorms and heavy rain are expected from the Southern Plains to the Great Lakes through Tuesday. Heavy snow is expected in the Pacific Northwest. Read More >

Current conditions at

JOHNSON RIDGE (SKKW1)

Lat: 47.79992°NLon: 121.286°WElev: 2028.0ft.

NA

40°F

4°C

Humidity 99%
Wind Speed SW 2 MPH
Barometer NA
Dewpoint 40°F (4°C)
Visibility NA
Last update 13 Apr 11:29 PM PDT
Extended Forecast for

4 Miles N Index WA

Winter Storm Warning April 14, 11:00am until April 15, 11:00pm
Click here for hazard details and duration
Winter Storm Warning
  • Tonight

    Tonight: Snow likely, mainly before 5am.  Mostly cloudy, with a low around 34. Southwest wind around 9 mph.  Chance of precipitation is 70%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 34 °F

    Snow Likely

  • Tuesday

    Tuesday: Snow, mainly after 7am.  High near 36. Wind chill values between 25 and 30. South southwest wind 10 to 15 mph, with gusts as high as 29 mph.  Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

    High: 36 °F

    Snow

  • Tuesday Night

    Tuesday Night: Snow before 3am, then a slight chance of snow after 4am. The snow could be heavy at times.  Low around 27. Southwest wind 7 to 16 mph becoming west northwest in the evening. Winds could gust as high as 30 mph.  Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

    Low: 27 °F

    Heavy Snow

  • Wednesday

    Wednesday: Snow likely before 11am, then snow showers after 11am. Some thunder is also possible.  High near 34. Wind chill values between 20 and 26. West wind 6 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    High: 34 °F

    Snow Showers

  • Wednesday Night

    Wednesday Night: Snow, mainly before 11pm.  Low around 28. West southwest wind 5 to 9 mph.  Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    Low: 28 °F

    Snow then
    Chance Snow

  • Thursday

    Thursday: A 40 percent chance of snow.  Partly sunny, with a high near 39. New snow accumulation of less than a half inch possible.

    High: 39 °F

    Chance Snow

  • Thursday Night

    Thursday Night: A 30 percent chance of snow, mainly before 11pm.  Mostly cloudy, with a low around 31. Little or no snow accumulation expected.

    Low: 31 °F

    Chance Snow

  • Friday

    Friday: A slight chance of snow before 11am.  Partly sunny, with a high near 43.

    High: 43 °F

    Slight Chance
    Snow then
    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy

Detailed Forecast

Tonight
Snow likely, mainly before 5am. Mostly cloudy, with a low around 34. Southwest wind around 9 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of less than a half inch possible.
Tuesday
Snow, mainly after 7am. High near 36. Wind chill values between 25 and 30. South southwest wind 10 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Tuesday Night
Snow before 3am, then a slight chance of snow after 4am. The snow could be heavy at times. Low around 27. Southwest wind 7 to 16 mph becoming west northwest in the evening. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Wednesday
Snow likely before 11am, then snow showers after 11am. Some thunder is also possible. High near 34. Wind chill values between 20 and 26. West wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Wednesday Night
Snow, mainly before 11pm. Low around 28. West southwest wind 5 to 9 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Thursday
A 40 percent chance of snow. Partly sunny, with a high near 39. New snow accumulation of less than a half inch possible.
Thursday Night
A 30 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 31. Little or no snow accumulation expected.
Friday
A slight chance of snow before 11am. Partly sunny, with a high near 43.
Friday Night
Partly cloudy, with a low around 32.
Saturday
Partly sunny, with a high near 52.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 40.
Sunday
Rain and snow likely. Mostly cloudy, with a high near 48.
Sunday Night
Rain and snow likely. Mostly cloudy, with a low around 37.
Monday
Rain and snow likely. Mostly cloudy, with a high near 47.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Index WA
 47.88°N 121.58°W (Elev. 4111 ft)
11:27 pm PDT Apr 13, 2026
11pm PDT Apr 13, 2026-6pm PDT Apr 20, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database