Major Winter Storm Ongoing in the Upper Midwest and Great Lakes; Severe Weather Along the East Coast

A major winter storm will continue to bring blizzard conditions, heavy snowfall, icing, and strong winds through today across the Upper Midwest and Upper Great Lakes. Widespread severe storms are expected across the entire eastern U.S. with the highest threat over the interior Mid-Atlantic, where there is a risk for damaging wind gusts and a few tornadoes. Heat continues to build in the West. Read More >

Hazardous Weather Conditions

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Rain

63°F

17°C

Humidity	NA
Wind Speed	S 12 G 20 mph
Barometer	29.49 in (999.8 mb)
Dewpoint	N/A
Visibility	6.00 mi
Last update	16 Mar 1:56 pm EDT

More Information:

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

Extended Forecast for

2 Miles NNW Colesville MD

Tornado Watch until March 16, 07:00pm

Severe T-storm Warning until March 16, 02:45pm

Click here for hazard details and duration

Tornado Watch

Severe T-storm Warning

Tornado Watch until March 16, 07:00pm
Severe T-storm Warning until March 16, 02:45pm
NOW: Multiple hazards in effect
Click HERE for Details
This Afternoon
High: 70 °F
Severe
Thunderstorms
and Breezy
Tonight
Low: 29 °F
Breezy.
Severe
Thunderstorms
then Slight
Chance
Rain/Snow
Tuesday
High: 38 °F
Mostly Sunny
Tuesday Night
Low: 24 °F
Partly Cloudy
Wednesday
High: 40 °F
Partly Sunny
Wednesday Night
Low: 30 °F
Partly Cloudy
Thursday
High: 50 °F
Partly Sunny
Thursday Night
Low: 36 °F
Mostly Cloudy

Detailed Forecast

This Afternoon

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Some of the storms could be severe. Cloudy, with a high near 70. Breezy, with a south wind around 21 mph, with gusts as high as 43 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Tonight

Rain showers, possibly mixing with snow after midnight, then gradually ending. The rain could be heavy at times. Some thunder is also possible. Low around 29. Breezy, with a west wind 16 to 23 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

Tuesday

Mostly sunny, with a high near 38. West wind around 15 mph, with gusts as high as 26 mph.

Tuesday Night

Partly cloudy, with a low around 24. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.

Wednesday

Partly sunny, with a high near 40. Calm wind becoming south around 6 mph in the afternoon.

Wednesday Night

Partly cloudy, with a low around 30.

Thursday

Partly sunny, with a high near 50.

Thursday Night

Mostly cloudy, with a low around 36.