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

Frost Advisory in effect from April 16, 01:00 AM PDT until April 16, 09:00 AM PDT

Current conditions at

Boeing Field - King County International Airport (KBFI)

Lat: 47.54548°NLon: 122.3147°WElev: 20.0ft.

Mostly Cloudy

47°F

8°C

Humidity	70%
Wind Speed	SSE 10 MPH
Barometer	29.85 in (1010.84 mb)
Dewpoint	38°F (3°C)
Visibility	10.00 mi
Wind Chill	42°F (6°C)
Last update	15 Apr 01:53 PM PDT

More Information:

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

Extended Forecast for

5 Miles WSW West Seattle WA

Frost Advisory April 16, 01:00am until April 16, 09:00am

Click here for hazard details and duration

Frost Advisory

This Afternoon
High: 48 °F
Showers
Tonight
Low: 36 °F
Showers
Likely then
Patchy Frost
Thursday
High: 54 °F
Patchy Frost
then
Increasing
Clouds
Thursday Night
Low: 40 °F
Partly Cloudy
Friday
High: 56 °F
Mostly Sunny
Friday Night
Low: 42 °F
Mostly Cloudy
Saturday
High: 61 °F
Mostly Cloudy
Saturday Night
Low: 47 °F
Slight Chance
Rain
Sunday
High: 63 °F
Slight Chance
Rain

Detailed Forecast

This Afternoon

Showers and possibly a thunderstorm. High near 48. South southwest wind around 9 mph becoming north. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 10pm. Patchy frost after 4am. Otherwise, mostly cloudy, with a low around 36. North northeast wind around 6 mph becoming light and variable. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday

Patchy frost before 8am. Otherwise, increasing clouds, with a high near 54. South wind around 7 mph.

Thursday Night

Partly cloudy, with a low around 40. South wind 5 to 7 mph.

Friday

Mostly sunny, with a high near 56. Light and variable wind becoming southeast around 5 mph.

Friday Night

Mostly cloudy, with a low around 42.

Saturday

Mostly cloudy, with a high near 61.

Saturday Night

A slight chance of rain after 11pm. Mostly cloudy, with a low around 47.