April 19 Showers Later Today Then Strong Winds Usher In Colder Air Tomorrow
Friday April 19 Morning Report The pattern is about to change. The sunny and mild days we have had will be replaced with a colder-than-average outlook into next week. This…
Winter Storm Watch Expanded To Central Maryland And Southern PA
National Weather Service
Winter Weather
Warnings
Friday January 14 2022
The Winter Storm Watch starting Sunday afternoon has been expanded east. The storm will start with snow, which will get heavy in a hurry. This now includes areas of central Maryland and northern Virginia. This is for counties north and west of Baltimore and Washington. Also in southern Pennsylvania this has been expanded to include York County.
Winter Storm Watch
Issued by The National Weather Service
Begins at 1 PM Sunday, but the arrival will expand snow from south to north all afternoon. Then transition to ice fro sleet and freezing rain during the evening.
Expectations In This Region
Snow will begin in the afternoon, and get heavy in a hurry.
There will still be some refinement to the timing.
Quick 1 to 3 inches, but up to 5 inches of snow.
Change over to freezing rain. May total 0.10 to 0.25 inches
Wind will gust to 45 mph
There will be Winter Weather Advisories issued for more areas as we get closer.
Arrival Time —> slider
NAM 3Km Noon to 7 PM Sunday
My Call For Snowfall
There will be a tight gradient of snow totals based on when the warm air comes in with the easterly winds.
The transition will be from the south and east…
Given the arctic air in place ahead of the storm, there may be extensive icing in the areas in blue, especially in dark blue. Up to 1/4″ of ice on top of the snow is possible. Ice can linger longer than model suggest, so the timing will be refined as we get closer.
Important Note:
The strong storm will have a lot of wind pulling in warmer air off of the Atlantic to mix over snow to ice and rain east of the mountains. Then the winds will switch to the west behind the storm on Monday.
Wind Forecast Sunday 12 PM to Monday 12 PM
Peak gusts will be higher than the steady wind forecast shown here.
Other Calls:
Computer Model Guidance
European Model
GFS Model
Canadian Model
National Weather Service Offices
Click here to view all offices with maps of the range of expectations.
Faith in the Flakes.
Also See:
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ALSO SEE
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