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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

MARTEN RIDGE (MRTW1)

Lat: 48.76292°NLon: 121.69823°WElev: 3520.0ft.

NA

38°F

3°C

Humidity NA
Wind Speed NA NA MPH
Barometer NA
Dewpoint N/A
Visibility NA
Last update NA
Extended Forecast for

10 Miles E Marblemount 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: A chance of rain and snow. Mostly cloudy, with a high near 38. West wind around 7 mph. Chance of precipitation is 40%. Total daytime snow accumulation of less than a half inch possible.

    High: 38 °F

    Chance
    Rain/Snow

  • Tonight

    Tonight: Snow, mainly before 5am. Low around 33. West wind around 7 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    Low: 33 °F

    Snow

  • Tuesday

    Tuesday: Snow. The snow could be heavy at times. High near 34. Wind chill values between 25 and 30. South wind 8 to 10 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

    High: 34 °F

    Heavy Snow

  • Tuesday Night

    Tuesday Night: Snow. The snow could be heavy at times. Low around 24. Wind chill values between 17 and 22. South southwest wind 6 to 10 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

    Low: 24 °F

    Heavy Snow
    then Snow
    Likely

  • Wednesday

    Wednesday: Snow, mainly between 11am and 2pm, then snow showers after 2pm. Some thunder is also possible. High near 33. Southwest wind 3 to 8 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    High: 33 °F

    Snow

  • Wednesday Night

    Wednesday Night: A 50 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 25. New snow accumulation of less than a half inch possible.

    Low: 25 °F

    Chance Snow
    then Slight
    Chance Snow

  • Thursday

    Thursday: A 30 percent chance of snow, mainly after 11am. Partly sunny, with a high near 36. Little or no snow accumulation expected.

    High: 36 °F

    Chance Snow

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

  • Friday

    Friday: A slight chance of snow. Mostly sunny, with a high near 39.

    High: 39 °F

    Slight Chance
    Snow

Detailed Forecast

This Afternoon
A chance of rain and snow. Mostly cloudy, with a high near 38. West wind around 7 mph. Chance of precipitation is 40%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Snow, mainly before 5am. Low around 33. West wind around 7 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Tuesday
Snow. The snow could be heavy at times. High near 34. Wind chill values between 25 and 30. South wind 8 to 10 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.
Tuesday Night
Snow. The snow could be heavy at times. Low around 24. Wind chill values between 17 and 22. South southwest wind 6 to 10 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Wednesday
Snow, mainly between 11am and 2pm, then snow showers after 2pm. Some thunder is also possible. High near 33. Southwest wind 3 to 8 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Wednesday Night
A 50 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 25. New snow accumulation of less than a half inch possible.
Thursday
A 30 percent chance of snow, mainly after 11am. Partly sunny, with a high near 36. Little or no snow accumulation expected.
Thursday Night
Partly cloudy, with a low around 27.
Friday
A slight chance of snow. Mostly sunny, with a high near 39.
Friday Night
Partly cloudy, with a low around 31.
Saturday
A slight chance of snow. Partly sunny, with a high near 45.
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.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
10 Miles E Marblemount WA
 48.52°N 121.22°W (Elev. 4341 ft)
Last Update:
11:27 am PDT Apr 13, 2026
Forecast Valid:
1pm PDT Apr 13, 2026-6pm PDT Apr 19, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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