Alert archive / Virginia / Tornado Warnings in 2010

Tornado Warning 7, NWS Baltimore/Washington

June 6, 2010Culpeper County, Fauquier County, Stafford County, Virginia

NWS Baltimore/Washington issued this tornado warning at Jun 6, 2010, 3:30 PM EDT for Culpeper County, Fauquier County, Stafford County, Virginia. It was in force for 30 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 6, 2010, 3:30 PM EDT (19:30 UTC)
Expired: Jun 6, 2010, 4:00 PM EDT
In force: 30 min
Issued by: NWS Baltimore/Washington
Area: Storm-based polygon

Counties Culpeper County, VA, Fauquier County, VA, Stafford County, VA

The radar

The Sterling radar (KLWX), 52 km from the middle of the area, began a volume at 19:34 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.

Issued	Product	Office	Lasted
Jun 6, 12:40 PM EDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 7.5 hours before the alert went out and 54 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 627 J/kg
Mixed-layer CIN: -200 J/kg
Mixed-layer LCL: 1397 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 156 m²/s²
0-3 km storm-relative helicity: 145 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.9

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this tornado 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 tornado warning went out at Jun 6, 3:08 PM EDT, 22 minutes earlier.

Area forecast discussion, Jun 6, 3:08 PM EDT, 22 minutes before

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Hazardous weather outlook, Jun 6, 12:49 PM EDT, 2 hours 41 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1249 PM EDT SUN JUN 6 2010

ANZ530>543-DCZ001-MDZ006-007-011-013-014-016>018-VAZ052>057-
071000-
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-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
CHESTER RIVER TO QUEENSTOWN MD-EASTERN BAY-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
PATUXENT RIVER TO BROOMES ISLAND MD-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH
ISLAND-DISTRICT OF COLUMBIA-NORTHERN BALTIMORE-HARFORD-
SOUTHERN BALTIMORE-PRINCE GEORGES-ANNE ARUNDEL-CHARLES-ST. MARYS-
CALVERT-PRINCE WILLIAM/MANASSAS/MANASSAS PARK-FAIRFAX-
ARLINGTON/FALLS CHURCH/ALEXANDRIA-STAFFORD-SPOTSYLVANIA-
KING GEORGE-
1249 PM EDT SUN JUN 6 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE MARYLAND PORTION OF THE
CHESAPEAKE BAY...TIDAL POTOMAC RIVER...AND ADJACENT COUNTIES IN
CENTRAL MARYLAND AND NORTHERN VIRGINIA AS WELL AS THE DISTRICT OF
COLUMBIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT

A TORNADO WATCH IS IN EFFECT UNTIL 8PM. A BROKEN LINE OF STRONG TO
SEVERE THUNDERSTORMS WILL CROSS THE AREA LATE THIS AFTERNOON AND
EARLY THIS EVENING. DAMAGING WIND GUSTS ARE THE MOST LIKELY
THREAT. LARGE HAIL AND ISOLATED TORNADOES WILL ALSO BE POSSIBLE.

A SMALL CRAFT ADVISORY IS IN EFFECT TODAY FOR THE MARYLAND PORTION
OF THE CHESAPEAKE BAY AND THE TIDAL POTOMAC RIVER. A SMALL CRAFT
ADVISORY CONTINUES TONIGHT FOR THE LOWER TIDAL POTOMAC RIVER AND
MARYLAND PORTION OF THE CHESAPEAKE BAY.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME

.SPOTTER INFORMATION STATEMENT...

THE SKYWARN SPOTTER NETWORK HAS BEEN ACTIVATED. PLEASE RELAY STORM
REPORTS TO THE NATIONAL WEATHER SERVICE.

MDZ003>005-009-010-501-502-VAZ021-025>031-036>040-042-050-051-501-
502-WVZ050>055-501>504-071000-
WASHINGTON-FREDERICK MD-CARROLL-MONTGOMERY-HOWARD-
EXTREME WESTERN ALLEGANY-CENTRAL AND EASTERN ALLEGANY-HIGHLAND-
AUGUSTA-ROCKINGHAM-SHENANDOAH-FREDERICK VA-PAGE-WARREN-CLARKE-
NELSON-ALBEMARLE-GREENE-MADISON-RAPPAHANNOCK-LOUDOUN-ORANGE-
CULPEPER-NORTHERN FAUQUIER-SOUTHERN FAUQUIER-HAMPSHIRE-MORGAN-
BERKELEY-JEFFERSON-PENDLETON-HARDY-WESTERN GRANT-EASTERN GRANT-
WESTERN MINERAL-EASTERN MINERAL-
1249 PM EDT SUN JUN 6 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN WEST VIRGINIA...
NORTHERN AND CENTRAL VIRGINIA...AND CENTRAL AND WESTERN MARYLAND
WITH THE EXCEPTION OF GARRETT COUNTY.

.DAY ONE...THIS AFTERNOON AND TONIGHT

A TORNADO WATCH IS IN EFFECT UNTIL 8PM. A BROKEN LINE OF STRONG TO
SEVERE THUNDERSTORMS WILL CROSS THE AREA THIS AFTERNOON AND EARLY
THIS EVENING. DAMAGING WIND GUSTS ARE THE MOST LIKELY THREAT.
LARGE HAIL AND ISOLATED TORNADOES WILL ALSO BE POSSIBLE.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

THE SKYWARN SPOTTER NETWORK HAS BEEN ACTIVATED. PLEASE RELAY STORM
REPORTS TO THE NATIONAL WEATHER SERVICE.

HTS

In the hours before

Local storm report, Jun 6, 2:41 PM EDT, 49 minutes before

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Local storm report, Jun 6, 2:43 PM EDT, 47 minutes before

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Special weather statement, Jun 6, 2:46 PM EDT, 44 minutes before

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Local storm report, Jun 6, 3:12 PM EDT, 18 minutes before

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Local storm report, Jun 6, 3:14 PM EDT, 16 minutes before

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Special weather statement, Jun 6, 3:27 PM EDT, 3 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 6, 12:15 PM EDT	Severe Thunderstorm Warning	LWX	Frederick	30 min
Jun 6, 12:44 PM EDT	Special Weather Statement	LWX	Clarke, Frederick, City of Winchester	31 min
Jun 6, 12:53 PM EDT	Severe Thunderstorm Warning	LWX	Clarke, Frederick, City of Winchester	37 min
Jun 6, 1:18 PM EDT	Severe Thunderstorm Warning	LWX	Clarke, Loudoun	27 min
Jun 6, 1:30 PM EDT	Special Marine Warning	LWX		2 hr
Jun 6, 1:43 PM EDT	Severe Thunderstorm Warning	LWX	Arlington, Fairfax, Loudoun, City of Falls Church	47 min
Jun 6, 2:12 PM EDT	Special Marine Warning	LWX		2 hr
Jun 6, 2:46 PM EDT	Special Weather Statement	LWX	Culpeper	44 min
Jun 6, 3:22 PM EDT	Special Marine Warning	LWX		113 min
Jun 6, 3:27 PM EDT	Special Weather Statement	LWX	Stafford	48 min
Jun 6, 3:50 PM EDT	Severe Thunderstorm Warning	LWX	King George, Prince William, Stafford	25 min
Jun 6, 3:58 PM EDT	Severe Thunderstorm Warning	LWX	King George	47 min
Jun 6, 4:17 PM EDT	Special Marine Warning	LWX		118 min
Jun 6, 6:14 PM EDT	Special Marine Warning	LWX		2 hr
Jun 6, 11:20 AM EDT	Special Weather Statement	LWX	Allegany	25 min
Jun 6, 2:28 PM EDT	Special Weather Statement	LWX	Anne Arundel, Prince George's, City of Baltimore	47 min
Jun 6, 2:42 PM EDT	Tornado Warning	LWX	Anne Arundel, Prince George's	23 min
Jun 6, 4:44 PM EDT	Special Weather Statement	LWX	Saint Mary's	46 min
Jun 6, 11:45 AM EDT	Special Weather Statement	LWX	Mineral	30 min
Jun 6, 12:22 PM EDT	Special Weather Statement	LWX	Berkeley	23 min
Jun 6, 12:59 PM EDT	Special Weather Statement	LWX	Grant, Hardy	31 min

Nearby

Tornado Warnings in Virginia, 2010 Every tornado warning in 2010 Tornadoes 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.