Alert archive / Virginia / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 261, NWS Baltimore/Washington

November 10, 2000Madison County, Orange County, Virginia

NWS Baltimore/Washington issued this severe thunderstorm warning at Nov 10, 2000, 12:51 AM EST for Madison County, Orange County, Virginia. It was in force for 39 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Nov 10, 2000, 12:51 AM EST (05:51 UTC)
Expired
Nov 10, 2000, 1:30 AM EST
In force
39 min
Issued by
NWS Baltimore/Washington
Area
Whole counties

Counties Madison County, VA, Orange County, VA

The radar

The Sterling radar (KLWX), 92 km from the middle of the area, began a volume at 05:55 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 00:00Z, 5.9 hours before the alert went out and 95 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.

Skew-T log-pSkew-T log-p diagram, Washington/Dulle, VA at 00:00Z on 2000-11-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 00:00Z on 2000-11-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 300 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
510 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
300 m²/s²
0-3 km storm-relative helicity
317 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Nov 10, 12:47 AM EST, 4 minutes earlier.

Area forecast discussion, Nov 10, 12:47 AM EST, 4 minutes before
AREA FORECAST DISCUSSION...UPDATED...
NATIONAL WEATHER SERVICE BALTIMORE/WASHINGTON
1247 AM EST FRI NOV 10 2000

WL SEND OUT UPDATED ZONE PKG TO REMOVE SVR TSTM WATCH WHICH EXPIRED
AT 05Z.

.pLWX...
DC...NONE.
MD...NONE.
VA...NONE.
WV...NONE.

ARTHUR

The office that day

Everything else NWS Baltimore/Washington issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 9, 11:36 PM ESTSevere Thunderstorm WarningLWXAugusta, Nelson39 min
Nov 9, 11:36 PM ESTSevere Thunderstorm WarningLWXCity of Waynesboro39 min
Nov 9, 11:36 PM ESTSevere Thunderstorm WarningLWXCity of Staunton39 min
Nov 10, 12:08 AM ESTSevere Thunderstorm WarningLWXAlbemarle, City of Charlottesville52 min
Nov 10, 12:25 AM ESTSevere Thunderstorm WarningLWXClarke, Frederick, City of Winchester50 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2000Every severe thunderstorm warning in 2000

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.