Alert archive / Virginia / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 59, NWS Baltimore/Washington

June 8, 2007Highland County, Virginia; Pendleton County, West Virginia

NWS Baltimore/Washington issued this severe thunderstorm warning at Jun 8, 2007, 5:37 PM EDT for Highland County, Virginia; Pendleton County, West Virginia. It was in force for 53 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
Jun 8, 2007, 5:37 PM EDT (21:37 UTC)
Expired
Jun 8, 2007, 6:30 PM EDT
In force
53 min
Issued by
NWS Baltimore/Washington
Area
Counties, with a storm outline in the text

Counties Highland County, VA, Pendleton County, WV

The radar

The Sterling radar (KLWX), 178 km from the middle of the area, began a volume at 21:39 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 8, 5:32 PM EDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Roanoke, VA (KRNK), launched 12:00Z, 9.6 hours before the alert went out and 147 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, Roanoke, VA at 12:00Z on 2007-06-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 634 joules per kilogram.LCLLFCEL10008507005003002001001 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, Roanoke, VA at 12:00Z on 2007-06-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 48 square meters per square second.1939Sfc1 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
634 J/kg
Mixed-layer CIN
-97 J/kg
Mixed-layer LCL
1011 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
48 m²/s²
0-3 km storm-relative helicity
43 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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 Jun 8, 3:01 PM EDT, 2 hours 36 minutes earlier.

Area forecast discussion, Jun 8, 3:01 PM EDT, 2 hours 36 minutes before
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Hazardous weather outlook, Jun 8, 11:15 AM EDT, 6 hours 22 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1115 AM EDT FRI JUN 8 2007

ANZ530>537-DCZ001-MDZ003>007-009>011-013-014-016>018-501-502-
VAZ021-025>031-036>042-050>057-WVZ050>055-501>504-091000-
CHESAPEAKE BAY NORTH OF POOLES ISLAND MD-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT MD-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH MD-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT MD-
CHESAPEAKE BAY FROM DRUM POINT MD TO SMITH POINT VA-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD MD-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND MD-
TIDAL POTOMAC FROM COBB ISLAND MD TO SMITH POINT VA-
DISTRICT OF COLUMBIA-WASHINGTON-FREDERICK MD-CARROLL-
NORTHERN BALTIMORE-HARFORD-MONTGOMERY-HOWARD-SOUTHERN BALTIMORE-
PRINCE GEORGES-ANNE ARUNDEL-CHARLES-ST. MARYS-CALVERT-
EXTREME WESTERN ALLEGANY-CENTRAL AND EASTERN ALLEGANY-HIGHLAND-
AUGUSTA-ROCKINGHAM-SHENANDOAH-FREDERICK VA-PAGE-WARREN-CLARKE-
NELSON-ALBEMARLE-GREENE-MADISON-RAPPAHANNOCK-FAUQUIER-LOUDOUN-
ORANGE-CULPEPER-PRINCE WILLIAM/MANASSAS/MANASSAS PARK-FAIRFAX-
ARLINGTON/FALLS CHURCH/ALEXANDRIA-STAFFORD-SPOTSYLVANIA-
KING GEORGE-HAMPSHIRE-MORGAN-BERKELEY-JEFFERSON-PENDLETON-HARDY-
WESTERN GRANT-EASTERN GRANT-WESTERN MINERAL-EASTERN MINERAL-
1115 AM EDT FRI JUN 8 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR MARYLAND WEST OF THE
EASTERN SHORE INCLUDING THE CHESAPEAKE BAY AND EAST OF GARRETT
COUNTY...EASTERN WEST VIRGINIA...NORTHERN AND CENTRAL VIRGINIA...
WASHINGTON DC AND THE TIDAL POTOMAC RIVER.

.DAY ONE...THIS AFTERNOON AND TONIGHT

HIGH TEMPERATURES ARE FORECAST TO RISE INTO THE MID 90S BY LATE
THIS AFTERNOON. THIS COMBINED WITH HIGH HUMIDITY WILL RESULT IN
HEAT INDEX VALUES UP TO 100 DEGREES EAST OF THE BLUE RIDGE
MOUNTAINS. A HEAT ADVISORY HAS BEEN ISSUED FOR THIS AREA.

SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP LATE IN THE
AFTERNOON AND EVENING IN A HOT AND HUMID AIR MASS. A FEW OF
THESE THUNDERSTORMS MAY BECOME SEVERE WITH DAMAGING WINDS AND
LARGE HAIL. THE MOST LIKELY TIME FOR SEVERE WEATHER IS 5 PM
TO 9 PM.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

A SMALL CRAFT ADVISORY IS IN EFFECT FOR THE MARYLAND PORTION OF
THE CHESAPEAKE BAY AND THE TIDAL POTOMAC RIVER SATURDAY AND
SATURDAY EVENING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS POSSIBLE THIS AFTERNOON AND EVENING.

In the hours before

Local storm report, Jun 8, 4:45 PM EDT, 52 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
445 PM EDT FRI JUN 08 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0316 PM     TSTM WND DMG     LURAY                   38.66N 78.46W
06/08/2007                   PAGE               VA   LAW ENFORCEMENT

            TREES DOWN AND MULTIPLE POWER OUTAGES IN LURAY.

&&

SMZ

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 8, 3:01 PM EDTSevere Thunderstorm WarningLWXPage44 min
Jun 8, 3:48 PM EDTSevere Thunderstorm WarningLWXPage28 min
Jun 8, 4:42 PM EDTSevere Thunderstorm WarningLWXPage48 min
Jun 8, 5:30 PM EDTSpecial Marine WarningLWX2 hr
Jun 8, 5:46 PM EDTSevere Thunderstorm WarningLWXRockingham44 min
Jun 8, 6:18 PM EDTSevere Thunderstorm WarningLWXAugusta, Rockingham, City of Harrisonburg, City of Staunton, City of Waynesboro57 min
Jun 8, 6:30 PM EDTSevere Thunderstorm WarningLWXSpotsylvania, City of Fredericksburg45 min
Jun 8, 6:48 PM EDTSevere Thunderstorm WarningLWXOrange42 min
Jun 8, 7:10 PM EDTSevere Thunderstorm WarningLWXShenandoah18 min
Jun 8, 7:12 PM EDTSevere Thunderstorm WarningLWXAugusta, City of Staunton, City of Waynesboro38 min
Jun 8, 7:41 PM EDTSevere Thunderstorm WarningLWXSpotsylvania49 min
Jun 8, 7:47 PM EDTSevere Thunderstorm WarningLWXLoudoun32 min
Jun 8, 7:48 PM EDTSevere Thunderstorm WarningLWXAlbemarle, Nelson, City of Charlottesville57 min
Jun 8, 6:03 PM EDTSevere Thunderstorm WarningLWXMontgomery42 min
Jun 8, 6:44 PM EDTSevere Thunderstorm WarningLWXMontgomery30 min
Jun 8, 7:27 PM EDTSevere Thunderstorm WarningLWXWashington48 min
Jun 8, 7:57 PM EDTSevere Thunderstorm WarningLWXFrederick63 min
Jun 8, 6:05 PM EDTSevere Thunderstorm WarningLWXGrant40 min
Jun 8, 6:36 PM EDTSevere Thunderstorm WarningLWXHardy54 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2007Severe Thunderstorm Warnings in West Virginia, 2007Every severe thunderstorm warning in 2007

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.