Alert archive / Virginia / Flash Flood Warnings in 2014

Flash Flood Warning 35, NWS Baltimore/Washington

July 3, 2014Rockingham County, Virginia; Hardy County, West Virginia

NWS Baltimore/Washington issued this flash flood warning at Jul 3, 2014, 1:03 PM EDT for Rockingham County, Virginia; Hardy County, West Virginia. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 3, 2014, 1:03 PM EDT (17:03 UTC)
Expired
Jul 3, 2014, 7:00 PM EDT
In force
6 hr
Issued by
NWS Baltimore/Washington
Area
Storm-based polygon
Flood severity
None

Counties Rockingham County, VA, Hardy County, WV

The radar

The Sterling radar (KLWX), 122 km from the middle of the area, began a volume at 17:05 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, 5.1 hours before the alert went out and 129 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 12:00Z on 2014-07-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4 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, Washington/Dulle, VA at 12:00Z on 2014-07-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -7 square meters per square second.193958Sfc1 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
4 J/kg
Mixed-layer CIN
-174 J/kg
Mixed-layer LCL
1408 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
-7 m²/s²
0-3 km storm-relative helicity
113 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 flash flood 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 flash flood warning went out at Jul 3, 10:01 AM EDT, 3 hours 2 minutes earlier.

Area forecast discussion, Jul 3, 10:01 AM EDT, 3 hours 2 minutes before
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Hazardous weather outlook, Jul 3, 1:01 PM EDT, 2 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
101 PM EDT THU JUL 3 2014

ANZ530>543-DCZ001-MDZ006-007-011-013-014-016>018-VAZ052>057-
041515-
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-
101 PM EDT THU JUL 3 2014

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 SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 9 PM THIS EVENING
FOR THE AREA WITH THE EXCEPTION OF ST. MARY'S AND CALVERT COUNTIES
AND THE WATERS ADJACENT TO THESE COUNTIES.

A FLASH FLOOD WATCH IS IN EFFECT THROUGH TONIGHT. SHOWERS AND
THUNDERSTORMS ARE LIKELY. HEAVIER SHOWERS AND THUNDERSTORMS WILL
CAUSE TORRENTIAL DOWNPOURS WHICH MAY LEAD TO FLASH FLOODING. SEE
WBCFFALWX FOR FURTHER DETAILS. A FEW THUNDERSTORMS MAY BECOME
SEVERE...WITH LOCALLY DAMAGING WIND GUSTS AND LARGE HAIL BEING THE
PRIMARY THREATS.

A SMALL CRAFT ADVISORY IS IN EFFECT FOR ALL OF THE WATERS THIS
AFTERNOON AND EVENING. THE SMALL CRAFT ADVISORY CONTINUES THROUGH
LATE TONIGHT FOR THE MARYLAND CHESAPEAKE BAY AND LOWER TIDAL
POTOMAC RIVER.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

A SMALL CRAFT ADVISORY IS IN EFFECT FOR THE WATERS FRIDAY...AND A
GALE WARNING MAY BE NEEDED FOR PORTIONS OF THE WATERS DURING THIS
TIME. A SMALL CRAFT ADVISORY WILL LIKELY BE NEEDED FOR THE WATERS
FRIDAY EVENING...AND FOR PORTIONS OF THE WATERS FRIDAY NIGHT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS IN EFFECT.

MDZ003>005-009-010-501-502-VAZ025>031-036>040-042-050-051-501>504-
WVZ050>053-055-501>506-041515-
WASHINGTON-FREDERICK MD-CARROLL-MONTGOMERY-HOWARD-
EXTREME WESTERN ALLEGANY-CENTRAL AND EASTERN ALLEGANY-AUGUSTA-
ROCKINGHAM-SHENANDOAH-FREDERICK VA-PAGE-WARREN-CLARKE-NELSON-
ALBEMARLE-GREENE-MADISON-RAPPAHANNOCK-LOUDOUN-ORANGE-CULPEPER-
NORTHERN FAUQUIER-SOUTHERN FAUQUIER-WESTERN HIGHLAND-
EASTERN HIGHLAND-HAMPSHIRE-MORGAN-BERKELEY-JEFFERSON-HARDY-
WESTERN GRANT-EASTERN GRANT-WESTERN MINERAL-EASTERN MINERAL-
WESTERN PENDLETON-EASTERN PENDLETON-
101 PM EDT THU JUL 3 2014

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 SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 9 PM THIS EVENING
FOR THE ENTIRE AREA.

A FLASH FLOOD WATCH IS IN EFFECT THROUGH EARLY THIS EVENING FOR
THE SHENANDOAH VALLEY...PORTIONS OF NORTH-CENTRAL MARYLAND AND
EASTERN WEST VIRGINIA. A FLASH FLOOD WATCH IS IN EFFECT THIS
AFTERNOON THROUGH TONIGHT FOR ALL AREAS EAST OF THE BLUE RIDGE
MOUNTAINS. SHOWERS AND THUNDERSTORMS ARE LIKELY. HEAVIER SHOWERS
AND THUNDERSTORMS WILL CAUSE TORRENTIAL DOWNPOURS WHICH MAY LEAD
TO FLASH FLOODING. SEE WBCFFALWX FOR FURTHER DETAILS. A FEW
THUNDERSTORMS MAY BECOME SEVERE...WITH LOCALLY DAMAGING WIND GUSTS
AND LARGE HAIL BEING THE PRIMARY THREATS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS IN EFFECT.

In the hours before

Special weather statement, Jul 3, 12:14 PM EDT, 49 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1214 PM EDT THU JUL 3 2014

WVZ055-502-506-031645-
EASTERN PENDLETON WV-HARDY WV-EASTERN GRANT WV-
1214 PM EDT THU JUL 3 2014

...STRONG THUNDERSTORM TO AFFECT EASTERN PENDLETON...HARDY AND
EASTERN GRANT COUNTIES...

AT 1214 PM EDT...A STRONG THUNDERSTORM WAS LOCATED 13 MILES SOUTHEAST
OF MILAM...STATIONARY.

LOCATIONS IMPACTED INCLUDE.

STORM INTENSITY IS INCREASING...AND SEVERE WEATHER MAY DEVELOP
RAPIDLY. REMAIN ALERT...AND BE PREPARED TO TAKE ACTION IF WARNINGS
ARE ISSUED.

WIND GUSTS OF 40 TO 50 MPH AND SMALL HAIL CAN BE EXPECTED WITH THIS
STORM.

&&

LAT...LON 3898 7910 3891 7896 3865 7917 3876 7928
TIME...MOT...LOC 1614Z 180DEG 0KT 3865 7897

MANNING

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 2, 8:06 PM EDTFlash Flood WarningLWXGreene, Madison, Page3 hr
Jul 2, 8:27 PM EDTSevere Thunderstorm WarningLWXAlbemarle, City of Charlottesville30 min
Jul 2, 8:35 PM EDTSevere Thunderstorm WarningLWXGreene, Madison, Orange40 min
Jul 2, 8:51 PM EDTSevere Thunderstorm WarningLWXCulpeper, Madison, Orange39 min
Jul 2, 9:19 PM EDTSevere Thunderstorm WarningLWXOrange, Spotsylvania41 min
Jul 2, 9:37 PM EDTSpecial Marine WarningLWX83 min
Jul 2, 10:27 PM EDTSpecial Marine WarningLWX93 min
Jul 2, 10:28 PM EDTSpecial Marine WarningLWX92 min
Jul 2, 10:40 PM EDTSpecial Marine WarningLWX95 min
Jul 2, 10:45 PM EDTSpecial Marine WarningLWX90 min
Jul 2, 11:07 PM EDTSpecial Marine WarningLWX83 min
Jul 2, 11:11 PM EDTSpecial Marine WarningLWX94 min
Jul 2, 11:19 PM EDTSpecial Marine WarningLWX116 min
Jul 3, 12:14 AM EDTSpecial Marine WarningLWX91 min
Jul 3, 12:17 AM EDTSpecial Marine WarningLWX88 min
Jul 3, 12:31 AM EDTSevere Thunderstorm WarningLWXKing George44 min
Jul 3, 12:40 AM EDTSpecial Marine WarningLWX65 min
Jul 3, 3:49 AM EDTFlash Flood WatchLWXArlington, Clarke, Culpeper, Fairfax, Fauquier, Frederick and 21 more26 hr
Jul 3, 4:31 AM EDTSmall Craft AdvisoryLWX40 hr
Jul 3, 12:29 PM EDTSevere Thunderstorm WarningLWXRockingham, Shenandoah46 min
Jul 3, 12:50 PM EDTSevere Thunderstorm WarningLWXGreene, Madison40 min
Jul 3, 1:14 PM EDTSevere Thunderstorm WarningLWXShenandoah46 min
Jul 3, 1:53 PM EDTSevere Thunderstorm WarningLWXFrederick, Shenandoah, Warren52 min
Jul 3, 2:10 PM EDTSevere Thunderstorm WarningLWXPage, Shenandoah, Warren32 min
Jul 3, 2:10 PM EDTSevere Thunderstorm WarningLWXCulpeper50 min
Jul 3, 2:20 PM EDTSevere Thunderstorm WarningLWXClarke, Frederick, Warren, City of Winchester40 min
Jul 3, 2:47 PM EDTFlash Flood WarningLWXAlbemarle, Augusta, Greene, Nelson, Rockingham, City of Waynesboro4 hr
Jul 3, 2:54 PM EDTSevere Thunderstorm WarningLWXCulpeper, Fauquier51 min
Jul 3, 3:01 PM EDTSevere Thunderstorm WarningLWXClarke, Loudoun44 min
Jul 3, 3:21 PM EDTSevere Thunderstorm WarningLWXFairfax, Fauquier, Loudoun, Prince William, City of Manassas, City of Manassas Park39 min
Jul 3, 3:29 PM EDTSevere Thunderstorm WarningLWXAlbemarle, City of Charlottesville34 min
Jul 3, 3:43 PM EDTSevere Thunderstorm WarningLWXCulpeper, Madison, Orange, Rappahannock, Stafford47 min
Jul 3, 3:50 PM EDTSevere Thunderstorm WarningLWXArlington, Fairfax, Loudoun, City of Alexandria, City of Fairfax, City of Falls Church55 min
Jul 3, 3:52 PM EDTSpecial Marine WarningLWX83 min
Jul 3, 4:08 PM EDTSevere Thunderstorm WarningLWXFairfax, Fauquier, Prince William, Stafford25 min
Jul 3, 4:26 PM EDTSevere Thunderstorm WarningLWXRockingham49 min
Jul 3, 4:30 PM EDTSevere Thunderstorm WarningLWXArlington60 min
Jul 3, 4:38 PM EDTSpecial Marine WarningLWX82 min
Jul 3, 4:46 PM EDTSpecial Marine WarningLWX89 min
Jul 3, 4:53 PM EDTSevere Thunderstorm WarningLWXRockingham27 min
Jul 3, 5:16 PM EDTSevere Thunderstorm WarningLWXKing George44 min
Jul 3, 5:41 PM EDTSpecial Marine WarningLWX94 min
Jul 3, 6:27 PM EDTSpecial Marine WarningLWX93 min
Jul 3, 6:42 PM EDTAreal Flood WarningLWXRockingham6 hr
Jul 3, 3:25 PM EDTSevere Thunderstorm WarningLWXCarroll, Frederick, Howard, Montgomery50 min
Jul 3, 4:04 PM EDTSevere Thunderstorm WarningLWXBaltimore, Carroll56 min
Jul 3, 5:03 PM EDTSevere Thunderstorm WarningLWXAnne Arundel, Baltimore, Howard, City of Baltimore42 min
Jul 3, 5:24 PM EDTSevere Thunderstorm WarningLWXBaltimore, Harford51 min
Jul 3, 5:55 PM EDTFlash Flood WarningLWXBaltimore, Harford3 hr
Jul 3, 6:07 PM EDTSevere Thunderstorm WarningLWXHarford38 min
Jul 3, 11:27 AM EDTSevere Thunderstorm WarningLWXPendleton48 min
Jul 3, 12:14 PM EDTSpecial Weather StatementLWXPendleton31 min
Jul 3, 3:57 PM EDTSevere Thunderstorm WarningLWXGrant, Hardy, Pendleton48 min
Jul 3, 4:04 PM EDTFlash Flood WarningLWXGrant, Hardy, Pendleton6 hr
Jul 3, 5:03 PM EDTSevere Thunderstorm WarningLWXGrant, Hampshire, Hardy, Mineral19 min

Nearby

Flash Flood Warnings in Virginia, 2014Flash Flood Warnings in West Virginia, 2014Every flash flood warning in 2014

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.