Alert archive / Virginia / Wind Advisories in 2008
Wind Advisory 6, NWS Baltimore/Washington
NWS Baltimore/Washington issued this wind advisory at Mar 19, 2008, 8:46 PM EDT for 26 counties in Virginia; 11 counties in Maryland; 7 counties in West Virginia. It was in force for 19 hr.
The area
The counties it named.
The facts
- Issued
- Mar 19, 2008, 8:46 PM EDT (00:46 UTC)
- Expired
- Mar 20, 2008, 3:51 PM EDT
- In force
- 19 hr
- Issued by
- NWS Baltimore/Washington
All 44 counties
Allegany County, MD, Anne Arundel County, MD, Baltimore County, MD, Calvert County, MD, Carroll County, MD, Charles County, MD, City of Baltimore, MD, Frederick County, MD, Prince George's County, MD, Saint Mary's County, MD, Washington County, MD, Arlington County, VA, City of Alexandria, VA, City of Charlottesville, VA, City of Fairfax, VA, City of Falls Church, VA, City of Fredericksburg, VA, City of Harrisonburg, VA, City of Staunton, VA, City of Waynesboro, VA, City of Winchester, VA, Clarke County, VA, Culpeper County, VA, Fairfax County, VA, Frederick County, VA, Greene County, VA, King George County, VA, Madison County, VA, Nelson County, VA, Orange County, VA, Page County, VA, Rappahannock County, VA, Rockingham County, VA, Shenandoah County, VA, Spotsylvania County, VA, Stafford County, VA, Warren County, VA, Berkeley County, WV, Grant County, WV, Hampshire County, WV, Hardy County, WV, Jefferson County, WV, Mineral County, WV, Morgan County, WV
The radar
The Sterling radar (KLWX), 39 km from the middle of the area, began a volume at 00:47 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
Roanoke, VA (KRNK), launched 00:00Z, 0.8 hours before the alert went out and 229 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
- 186 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 606 m above ground
- 0-6 km bulk shear
- 114 kt
- 0-1 km storm-relative helicity
- 640 m²/s²
- 0-3 km storm-relative helicity
- 689 m²/s²
- Significant tornado parameter
- 0.8
- Supercell composite
- 3.2
What forecasters said that day
The local office's own words before this wind advisory 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 wind advisory went out at Mar 19, 2:59 PM EDT, 5 hours 47 minutes earlier.
Area forecast discussion, Mar 19, 2:59 PM EDT, 5 hours 47 minutes before
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</html>Hazardous weather outlook, Mar 19, 3:54 PM EDT, 4 hours 52 minutes before
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</html>In the hours before
Special weather statement, Mar 19, 8:08 PM EDT, 38 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 808 PM EDT WED MAR 19 2008 MDZ501-502-VAZ021-WVZ050-054-055-501>504-200200- EXTREME WESTERN ALLEGANY-CENTRAL AND EASTERN ALLEGANY-HIGHLAND- HAMPSHIRE-PENDLETON-HARDY-WESTERN GRANT-EASTERN GRANT- WESTERN MINERAL-EASTERN MINERAL- INCLUDING THE CITIES OF...FROSTBURG...CUMBERLAND...BAYARD... PETERSBURG...EMORYVILLE...HARTMANSVILLE...KEYSER...FORT ASHBY 808 PM EDT WED MAR 19 2008 ...SHOWERS AND THUNDERSTORMS WITH GUSTY WINDS APPROACHING THE HIGHLANDS... AT 808 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SHOWERS AND THUNDERSTORMS FROM PRESTON COUNTY TO RANDOLPH COUNTY WEST VIRGINIA...MOVING EAST AT 55 MPH. THIS LINE HAS ALREADY PRODUCED SOME WIND DAMAGE ACROSS PORTIONS OF CENTRAL WEST VIRGINIA. WHILE THIS LINE MAY WEAKEN SOME AS IT MOVES INTO THE ALLEGHENY AND POTOMAC HIGHLANDS...WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE. THIS IS MOST LIKELY BETWEEN 9 AND 10 PM. SOME LOCATIONS THAT WILL BE IMPACTED INCLUDE CUMBERLAND... KEYSER...BAYARD AND ROMNEY. THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA WILL CONTINUE TO MONITOR THESE STORMS. REMAIN ALERT IN CASE WARNINGS ARE ISSUED. PELOQUIN
The office that day
Everything else NWS Baltimore/Washington issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 19, 11:20 PM EDT | Severe Thunderstorm Warning | LWX | Culpeper, Greene, Madison, Orange | 55 min |
| Mar 19, 11:44 PM EDT | Severe Thunderstorm Warning | LWX | Fauquier | 50 min |
| Mar 19, 11:56 PM EDT | Special Marine Warning | LWX | 113 min | |
| Mar 20, 12:10 AM EDT | Severe Thunderstorm Warning | LWX | Prince William, Stafford, City of Manassas | 65 min |
| Mar 20, 12:13 AM EDT | Severe Thunderstorm Warning | LWX | Orange, Spotsylvania, City of Fredericksburg | 62 min |
| Mar 20, 2:27 AM EDT | Special Marine Warning | LWX | 37 min |
Nearby
Wind Advisories in Virginia, 2008Wind Advisories in Maryland, 2008Wind Advisories in West Virginia, 2008Every wind advisory in 2008
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.