Sinlaku Continues to Impact the Marianas; Severe Weather from the Central US to the Northeast; Late-Season Snow in the Northwest

Sinlaku continues to bring destructive winds, widespread heavy rain/flooding, and storm surge to the Marianas. Showers and severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley and to the Central/Southern Plains through Thursday. A front will produce late-season snowfall over the Cascades and Northern Rockies and coastal rain over the Northwest Coast through Thursday. Read More >

Hazardous Weather Conditions

Winter Weather Advisory in effect from April 15, 06:00 PM MDT until April 16, 09:00 AM MDT

Current conditions at

Helmville MT-200 MP 53.3 (MTHLM)

Lat: 46.96826°NLon: 112.97487°WElev: 4199.0ft.

unknown precip

41°F

5°C

Humidity	47%
Wind Speed	WNW 9 MPH
Barometer	NA
Dewpoint	22°F (-6°C)
Visibility	NA
Wind Chill	35°F (2°C)
Last update	14 Apr 11:45 PM MDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

10 Miles NNE Ovando MT

Winter Weather Advisory April 15, 06:00pm until April 16, 09:00am

Click here for hazard details and duration

Winter Weather Advisory

Overnight
Low: 28 °F
Chance Snow
Wednesday
High: 34 °F
Chance Snow
then Snow
Wednesday Night
Low: 18 °F
Snow then
Chance Snow
Thursday
High: 25 °F
Snow
Thursday Night
Low: 19 °F
Chance Snow
Friday
High: 29 °F
Snow Showers
Likely
Friday Night
Low: 19 °F
Slight Chance
Snow then
Partly Cloudy
Saturday
High: 39 °F
Sunny
Saturday Night
Low: 24 °F
Partly Cloudy

Detailed Forecast

Overnight

A 30 percent chance of snow, mainly after 3am. Cloudy, with a low around 28. West southwest wind 13 to 16 mph, with gusts as high as 26 mph. Total nighttime snow accumulation of less than a half inch possible.

Wednesday

Snow, mainly after 1pm. High near 34. West southwest wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

Wednesday Night

Snow, mainly before midnight. Low around 18. West southwest wind 11 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

Thursday

Snow. High near 25. West wind 10 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

Thursday Night

A 40 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 19. West wind 8 to 14 mph, with gusts as high as 24 mph. New snow accumulation of less than a half inch possible.

Friday

A chance of snow before noon, then snow showers likely after noon. Some thunder is also possible. Mostly cloudy, with a high near 29. Chance of precipitation is 70%. New snow accumulation of around an inch possible.

Friday Night

A 20 percent chance of snow before midnight. Partly cloudy, with a low around 19.

Saturday

Sunny, with a high near 39.

Saturday Night

Partly cloudy, with a low around 24.

Sunday

Mostly sunny, with a high near 47.

Sunday Night

Mostly cloudy, with a low around 32.

Monday

A chance of rain and snow. Partly sunny, with a high near 50.