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 100%
Wind Speed SW 3 MPH
Barometer NA
Dewpoint 42°F (6°C)
Visibility NA
Last update 13 Apr 07:29 AM PDT
Extended Forecast for

3 Miles SSW Index WA

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

  • Today

    Today: Snow. High near 37. Wind chill values between 24 and 29. West southwest wind 11 to 13 mph. Chance of precipitation is 90%. Total daytime snow accumulation of less than a half inch possible.

    High: 37 °F

    Snow

  • Tonight

    Tonight: Snow. The snow could be heavy at times. Low around 31. Wind chill values between 23 and 28. Southwest wind 11 to 13 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 31 °F

    Heavy Snow

  • Tuesday

    Tuesday: Snow. The snow could be heavy at times. High near 33. Wind chill values between 19 and 24. South southwest wind 13 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 7 to 11 inches possible.

    High: 33 °F

    Heavy Snow

  • Tuesday Night

    Tuesday Night: Snow. The snow could be heavy at times. Low around 27. Wind chill values between 19 and 24. South southwest wind 11 to 21 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New snow accumulation of 8 to 12 inches possible.

    Low: 27 °F

    Heavy Snow

  • Wednesday

    Wednesday: Snow, mainly before 2pm, then snow showers after 2pm. Some thunder is also possible. High near 33. West wind 8 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    High: 33 °F

    Snow

  • Wednesday Night

    Wednesday Night: Snow, mainly before 11pm. Low around 27. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    Low: 27 °F

    Snow then
    Chance Snow

  • Thursday

    Thursday: A 40 percent chance of snow. Partly sunny, with a high near 36. New snow accumulation of less than a half inch possible.

    High: 36 °F

    Chance Snow

  • Thursday Night

    Thursday Night: A slight chance of snow. Mostly cloudy, with a low around 29.

    Low: 29 °F

    Slight Chance
    Snow

  • Friday

    Friday: A slight chance of snow before 2pm, then a slight chance of rain. Partly sunny, with a high near 39.

    High: 39 °F

    Slight Chance
    Snow then
    Slight Chance
    Rain/Snow

Detailed Forecast

Today
Snow. High near 37. Wind chill values between 24 and 29. West southwest wind 11 to 13 mph. Chance of precipitation is 90%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Snow. The snow could be heavy at times. Low around 31. Wind chill values between 23 and 28. Southwest wind 11 to 13 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Tuesday
Snow. The snow could be heavy at times. High near 33. Wind chill values between 19 and 24. South southwest wind 13 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 7 to 11 inches possible.
Tuesday Night
Snow. The snow could be heavy at times. Low around 27. Wind chill values between 19 and 24. South southwest wind 11 to 21 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New snow accumulation of 8 to 12 inches possible.
Wednesday
Snow, mainly before 2pm, then snow showers after 2pm. Some thunder is also possible. High near 33. West wind 8 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Wednesday Night
Snow, mainly before 11pm. Low around 27. 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 36. New snow accumulation of less than a half inch possible.
Thursday Night
A slight chance of snow. Mostly cloudy, with a low around 29.
Friday
A slight chance of snow before 2pm, then a slight chance of rain. Partly sunny, with a high near 39.
Friday Night
Mostly cloudy, with a low around 31.
Saturday
A slight chance of rain and snow. Partly sunny, with a high near 46.
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 44.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Index WA
 47.77°N 121.58°W (Elev. 5272 ft)
Last Update:
11:27 pm PDT Apr 12, 2026
Forecast Valid:
8am PDT Apr 13, 2026-6pm PDT Apr 19, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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