National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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

Super Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, and thunderstorms to the Marianas Islands into Wednesday. Tropical Storm conditions are likely over Guam. Severe thunderstorms and heavy rain are likely across the Upper Mississippi Valley and Great Lakes region with potential for large to very large hail, damaging wind, and tornadoes through Tuesday. Read More >

Hazardous Weather Conditions

Current conditions at

JOHNSON RIDGE (SKKW1)

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

NA

42°F

6°C

Humidity 99%
Wind Speed SW 1 MPH
Barometer NA
Dewpoint 42°F (6°C)
Visibility NA
Last update 13 Apr 11:29 AM PDT
Extended Forecast for

15 Miles NNE Index WA

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

  • This Afternoon

    This Afternoon: Rain and snow likely before 4pm, then rain between 4pm and 5pm, then rain, possibly mixed with snow after 5pm. High near 39. West wind around 7 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 39 °F

    Rain/Snow

  • Tonight

    Tonight: Rain and snow before 5am, then a chance of snow. Low around 32. Southwest wind around 7 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    Low: 32 °F

    Rain/Snow

  • Tuesday

    Tuesday: Snow before 8am, then snow, possibly mixed with rain. The snow could be heavy at times. High near 36. Wind chill values between 25 and 30. South southwest wind 8 to 11 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

    High: 36 °F

    Rain/Snow

  • Tuesday Night

    Tuesday Night: Rain and snow, becoming all snow after 11pm. The snow could be heavy at times. Low around 25. Wind chill values between 17 and 22. West wind 7 to 10 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

    Low: 25 °F

    Rain/Snow
    then Snow

  • Wednesday

    Wednesday: Snow, mainly between 11am and 2pm, then snow showers after 2pm. Some thunder is also possible. High near 35. Light west southwest wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

    High: 35 °F

    Snow

  • Wednesday Night

    Wednesday Night: Snow likely, mainly before 11pm. Mostly cloudy, with a low around 26. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    Low: 26 °F

    Snow Likely
    then Chance
    Snow

  • Thursday

    Thursday: A 40 percent chance of snow. Partly sunny, with a high near 38. New snow accumulation of less than a half inch possible.

    High: 38 °F

    Chance Snow

  • Thursday Night

    Thursday Night: A slight chance of snow. Partly cloudy, with a low around 27.

    Low: 27 °F

    Slight Chance
    Snow

  • Friday

    Friday: A chance of snow, mainly before 11am. Mostly sunny, with a high near 42.

    High: 42 °F

    Chance Snow

Detailed Forecast

This Afternoon
Rain and snow likely before 4pm, then rain between 4pm and 5pm, then rain, possibly mixed with snow after 5pm. High near 39. West wind around 7 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Tonight
Rain and snow before 5am, then a chance of snow. Low around 32. Southwest wind around 7 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Tuesday
Snow before 8am, then snow, possibly mixed with rain. The snow could be heavy at times. High near 36. Wind chill values between 25 and 30. South southwest wind 8 to 11 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.
Tuesday Night
Rain and snow, becoming all snow after 11pm. The snow could be heavy at times. Low around 25. Wind chill values between 17 and 22. West wind 7 to 10 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.
Wednesday
Snow, mainly between 11am and 2pm, then snow showers after 2pm. Some thunder is also possible. High near 35. Light west southwest wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.
Wednesday Night
Snow likely, mainly before 11pm. Mostly cloudy, with a low around 26. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Thursday
A 40 percent chance of snow. Partly sunny, with a high near 38. New snow accumulation of less than a half inch possible.
Thursday Night
A slight chance of snow. Partly cloudy, with a low around 27.
Friday
A chance of snow, mainly before 11am. Mostly sunny, with a high near 42.
Friday Night
Partly cloudy, with a low around 30.
Saturday
Partly sunny, with a high near 48.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 36.
Sunday
Rain and snow likely. Mostly cloudy, with a high near 45.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
15 Miles NNE Index WA
 48.03°N 121.43°W (Elev. 3077 ft)
Last Update:
11:27 am PDT Apr 13, 2026
Forecast Valid:
12pm PDT Apr 13, 2026-6pm PDT Apr 19, 2026
 
Forecast Discussion
 
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Additional Resources

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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