Wednesday, December 30, 2009

UPDATED: Nuisance of Ice/snow/sleet in Northern Virginia and Maryland

Update. I do not expect the system to turn back to snow. Sorry for the duplicate!

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We will see enough of a nuisance of Ice/snow/sleet in Northern Virginia and Maryland for the advisories. I suspect it will not accumulate to 3" in Virginia but some may see that much in Maryland, especially near the MD/PA Border.

A general up to 1" of accumulation seems possible with a bit more to 2" in spots also seems possible.

This will start in the morning and could make the commute terrible.

My thoughts yesterday were not too far off.

So for now, I would say the Northwestern 2/3rds of VA and Maryland will see a wintry mix with snow being more prevalent the further north and west you are. The precip will likely transition to more rain during day hours. This could change, but my best guess is that areas from Warrenton to Dulles Virginia to Towson Maryland could see an inch to as much as 2 inches of snow and slop. Areas North of Towson MD and east of York, PA could see 1 to 4 inches.

For the DC and Baltimore areas I could see up to 1 inch of the stuff. This would be along I -95 down to just north of Fredericksburg and then back to Charlottesville.

Beyond that, a mix coating and then rain eastward and south and east.Mainly rain Southeastern third of VA and All of NC.
 
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Nuisance of Ice/snow/sleet in Northern Virginia and Maryland

We will see enough of a nuisance of Ice/snow/sleet in Northern Virginia and Maryland for the advisories. I suspect it will not accumulate to 3" in Virginia but some may see that much in Maryland, especially near the MD/PA Border.

A general up to 1" of accumulation seems possible with a bit more to 2" in spots also seems possible.

This will start in the morning and could make the commute terrible.

My thoughts yesterday were not too far off.

So for now, I would say the Northwestern 2/3rds of VA and Maryland will see a wintry mix with snow being more prevalent the further north and west you are. The precip will likely transition to more rain during day hours and then back to snow towards evening as the storm begins to get its act together. This could change, but my best guess is that areas from Warrenton to Dulles Virginia to Towson Maryland could see an inch to as much as 2 inches of snow and slop. Areas North of Towson MD and east of York, PA could see 1 to 4 inches.

For the DC and Baltimore areas I could see up to 1 inch of the stuff. This would be along I -95 down to just north of Fredericksburg and then back to Charlottesville.

Beyond that, a mix coating and then rain eastward and south and east.Mainly rain Southeastern third of VA and All of NC.
 
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Sunday, January 25, 2009

Winter Weather Alert! Potential for first real snow of 2009!

Tuesday into Wednesday will likely hold the first big storm of the winter.

Scenario: The arctic front will stay south far enough to allow warm moist air to override the colder air and cause snow to break out Tuesday. The moist air will be pumped north by a system that will be pushing the precipitation into the area. The southerly winds will slowly warm the atmosphere and a gradual changeover to ice and rain in the southern region.

As of now:
Maryland and Northern Virginia (North of Lexington to Charlottesville to Fredericksburg to Dover Deleware could see 4 to 8 inches of snow. Closer to Pennsylvania may see as much as 12 inches. The differences in precipitation will be areas that mix with sleet and freezing rain. The further south you get the more likely a mix even to rain will occur.

Central Virginia will have a good amount of snow (2 to 4 Inches) before mix and changeover to rain.

Southern Virginia - South of a Roanoke to Farmville to Richmond to Chincateugue line, will see 1 to 3 inches possible, but a mixing with rain and ice and then rain will stop the accumulations and quickly be washed away.

This is based on the latest guidance and it will likely adjust over time as we get closer to the event.

More to come!
 
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