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

Super Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather 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 CNMI and tropical storm conditions over Guam. Severe thunderstorms and heavy rain are expected from the Southern Plains to the Great Lakes today. Read More >

Hazardous Weather Conditions

Current conditions at

MARTEN RIDGE (MRTW1)

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

NA

34°F

1°C

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

11 Miles SSE Newhalem WA

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

  • Overnight

    Overnight: A 40 percent chance of snow. Mostly cloudy, with a low around 25. Wind chill values between 13 and 18. Southwest wind around 14 mph. Total nighttime snow accumulation of 2 to 4 inches possible.

    Low: 25 °F

    Chance Snow

  • Tuesday

    Tuesday: Snow. The snow could be heavy at times. High near 26. Wind chill values between 11 and 16. Southwest wind 16 to 21 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New snow accumulation of 10 to 16 inches possible.

    High: 26 °F

    Heavy Snow

  • Tuesday Night

    Tuesday Night: Snow, mainly before midnight. The snow could be heavy at times. Low around 14. Wind chill values between 3 and 8. West southwest wind 15 to 20 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 100%. New snow accumulation of 8 to 12 inches possible.

    Low: 14 °F

    Heavy Snow
    then Chance
    Snow

  • Wednesday

    Wednesday: A chance of snow before 11am, then snow showers after 11am. Some thunder is also possible. High near 22. Wind chill values between 5 and 10. West wind 8 to 16 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 22 °F

    Snow Showers

  • Wednesday Night

    Wednesday Night: A 50 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 18. West wind 7 to 15 mph, with gusts as high as 21 mph. New snow accumulation of around an inch possible.

    Low: 18 °F

    Chance Snow
    then Slight
    Chance Snow

  • Thursday

    Thursday: A 30 percent chance of snow. Mostly cloudy, with a high near 26. Little or no snow accumulation expected.

    High: 26 °F

    Chance Snow

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 19.

    Low: 19 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 31.

    High: 31 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 22.

    Low: 22 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 40 percent chance of snow. Mostly cloudy, with a low around 25. Wind chill values between 13 and 18. Southwest wind around 14 mph. Total nighttime snow accumulation of 2 to 4 inches possible.
Tuesday
Snow. The snow could be heavy at times. High near 26. Wind chill values between 11 and 16. Southwest wind 16 to 21 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New snow accumulation of 10 to 16 inches possible.
Tuesday Night
Snow, mainly before midnight. The snow could be heavy at times. Low around 14. Wind chill values between 3 and 8. West southwest wind 15 to 20 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 100%. New snow accumulation of 8 to 12 inches possible.
Wednesday
A chance of snow before 11am, then snow showers after 11am. Some thunder is also possible. High near 22. Wind chill values between 5 and 10. West wind 8 to 16 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Wednesday Night
A 50 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 18. West wind 7 to 15 mph, with gusts as high as 21 mph. New snow accumulation of around an inch possible.
Thursday
A 30 percent chance of snow. Mostly cloudy, with a high near 26. Little or no snow accumulation expected.
Thursday Night
Mostly cloudy, with a low around 19.
Friday
Mostly sunny, with a high near 31.
Friday Night
Partly cloudy, with a low around 22.
Saturday
Partly sunny, with a high near 38.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 30.
Sunday
Snow likely. Mostly cloudy, with a high near 36.
Sunday Night
Snow likely. Mostly cloudy, with a low around 28.
Monday
Snow likely. Mostly cloudy, with a high near 34.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles SSE Newhalem WA
 48.53°N 121.16°W (Elev. 4213 ft)
Last Update:
11:27 pm PDT Apr 13, 2026
Forecast Valid:
5am PDT Apr 14, 2026-6pm PDT Apr 20, 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