Alert archive / West Virginia / Blizzard Warnings in 2010
Blizzard Warning 3, NWS Baltimore/Washington
NWS Baltimore/Washington issued this blizzard warning at Feb 25, 2010, 12:14 PM EST for Allegany County, Maryland; Grant County, Mineral County, West Virginia. It took effect at Feb 25, 2010, 6:09 PM EST. It was in force for 27 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Feb 25, 2010, 12:14 PM EST (17:14 UTC)
- In effect from
- Feb 25, 2010, 6:09 PM EST
- Expired
- Feb 26, 2010, 9:31 PM EST
- In force
- 27 hr
- Issued by
- NWS Baltimore/Washington
Counties Allegany County, MD, Grant County, WV, Mineral County, WV
The radar
The Sterling radar (KLWX), 134 km from the middle of the area, began a volume at 17:13 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 5.2 hours before the alert went out and 142 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 852 m above ground
- 0-6 km bulk shear
- 74 kt
- 0-1 km storm-relative helicity
- -142 m²/s²
- 0-3 km storm-relative helicity
- -73 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this blizzard warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Baltimore/Washington wrote its last area forecast discussion before this blizzard warning went out at Feb 25, 10:20 AM EST, 1 hour 54 minutes earlier.
Area forecast discussion, Feb 25, 10:20 AM EST, 1 hour 54 minutes before
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</html>Hazardous weather outlook, Feb 25, 10:30 AM EST, 1 hour 44 minutes before
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Special weather statement, Feb 25, 8:33 AM EST, 3 hours 41 minutes before
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</html>The office that day
Everything else NWS Baltimore/Washington issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 25, 9:35 AM EST | High Wind Watch | LWX | Arlington, Clarke, Culpeper, Fairfax, Fauquier, Frederick and 21 more | 6 hr |
| Feb 25, 3:29 PM EST | Storm Warning | LWX | 22 hr | |
| Feb 25, 3:41 PM EST | High Wind Warning | LWX | Arlington, Clarke, Culpeper, Fairfax, Fauquier, Frederick and 13 more | 26 hr |
| Feb 25, 3:41 PM EST | Wind Advisory | LWX | Arlington, Culpeper, Fairfax, Fauquier, Greene, King George and 11 more | 24 hr |
| Feb 25, 12:14 PM EST | Winter Weather Advisory | LWX | Allegany, Anne Arundel, Baltimore, Carroll, Frederick, Prince George's and 1 more | 30 hr |
Nearby
Blizzard Warnings in West Virginia, 2010Blizzard Warnings in Maryland, 2010Blizzard Warnings in Virginia, 2010Every blizzard warning in 2010
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.