Alert archive / West Virginia / Winter Storm Watches in 2012
Winter Storm Watch 2, NWS Baltimore/Washington
NWS Baltimore/Washington issued this winter storm watch at Feb 10, 2012, 9:53 AM EST for Highland County, Virginia; Allegany County, Maryland; Grant County, Mineral County, Pendleton County, West Virginia. It took effect at Feb 11, 2012, 6:00 AM EST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Feb 10, 2012, 9:53 AM EST (14:53 UTC)
- In effect from
- Feb 11, 2012, 6:00 AM EST
- Expired
- Feb 10, 2012, 1:56 PM EST
- In force
- Issued by
- NWS Baltimore/Washington
Counties Allegany County, MD, Highland County, VA, Grant County, WV, Mineral County, WV, Pendleton County, WV
The radar
The Sterling radar (KLWX), 144 km from the middle of the area, began a volume at 14:51 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, 2.9 hours before the alert went out and 152 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
- 1347 m above ground
- 0-6 km bulk shear
- 75 kt
- 0-1 km storm-relative helicity
- 109 m²/s²
- 0-3 km storm-relative helicity
- 305 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this winter storm watch 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 winter storm watch went out at Feb 10, 5:32 AM EST, 4 hours 21 minutes earlier.
Area forecast discussion, Feb 10, 5:32 AM EST, 4 hours 21 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 10, 3:37 AM EST | Small Craft Advisory | LWX | 38 hr | |
| Feb 10, 12:29 PM EST | Gale Warning | LWX | 48 hr | |
| Feb 10, 1:56 PM EST | Winter Storm Warning | LWX | Highland | 47 hr |
| Feb 10, 1:56 PM EST | Winter Weather Advisory | LWX | Frederick, Highland, City of Winchester | 29 hr |
Nearby
Winter Storm Watches in West Virginia, 2012Winter Storm Watches in Virginia, 2012Winter Storm Watches in Maryland, 2012Every winter storm watch in 2012
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.