Alert archive / Virginia / Flash Flood Warnings in 2009

Flash Flood Warning 32, NWS Baltimore/Washington

August 17, 2009Shenandoah County, Virginia

NWS Baltimore/Washington issued this flash flood warning at Aug 17, 2009, 10:06 PM EDT for Shenandoah County, Virginia. It was in force for 2 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
Aug 17, 2009, 10:06 PM EDT (02:06 UTC)
Expired
Aug 18, 2009, 12:30 AM EDT
In force
2 hr
Issued by
NWS Baltimore/Washington
Area
Storm-based polygon
Flood severity
None

County Shenandoah County, VA

The radar

The Sterling radar (KLWX), 95 km from the middle of the area, began a volume at 02:08 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.

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 Aug 17, 9:43 PM EDT, 23 minutes earlier.

Area forecast discussion, Aug 17, 9:43 PM EDT, 23 minutes before
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Hazardous weather outlook, Aug 17, 3:25 PM EDT, 6 hours 41 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
325 PM EDT MON AUG 17 2009

ANZ530>543-DCZ001-MDZ006-007-011-013-014-016>018-VAZ052>057-
181000-
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-
325 PM EDT MON AUG 17 2009

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

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

A SMALL CRAFT ADVISORY IS IN EFFECT FOR MUCH OF THE CHESAPEAKE BAY
AREA TUESDAY AFTERNOON AND EVENING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED THROUGH TONIGHT.

MDZ003>005-009-010-501-502-VAZ021-025>031-036>042-050-051-
WVZ050>055-501>504-181000-
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-FAUQUIER-LOUDOUN-
ORANGE-CULPEPER-HAMPSHIRE-MORGAN-BERKELEY-JEFFERSON-PENDLETON-
HARDY-WESTERN GRANT-EASTERN GRANT-WESTERN MINERAL-EASTERN MINERAL-
325 PM EDT MON AUG 17 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN WEST VIRGINIA...
NORTHERN ACHES OF...CAPE ROMAIN...ISLE OF PALMS...
SULLIVANS ISLAND...FOLLY BEACH...KIAWAH ISLAND
325 PM EDT MON AUG 17 2009

RIP CURRENT OUTLOOK...FOR TUESDAY.
LOW RISK. WIND AND OR WAVE CONDITIONS ARE NOT EXPECTED TO SUPPORT
THE DEVELOPMENT OF RIP CURRENTS. HOWEVER...RIP CURRENTS CAN STILL
OCCUR...ESPECIALLY AT LOW SPOTS OR BREAKS IN THE SANDBAR AND IN THE
VICINITY OF STRUCTURES SUCH AS GROINS...JETTIES AND PIERS. KNOW HOW
TO SWIM AND HEED THE ADVICE OF LIFEGUARDS AND THE BEACH PATROL. PAY
ATTENTION TO FLAGS AND POSTED SIGNS.

TUESDAY...PARTLY CLOUDY. HIGHS IN THE MID 80S. EAST WINDS AROUND
5 MPH...INCREASING TO SOUTHEAST 10 TO 15 MPH IN THE AFTERNOON.

WEDNESDAY...PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 80S. SOUTH WINDS
AROUND 5 MPH...INCREASING TO 10 TO 15 MPH IN THE AFTERNOON.
CHANCE OF RAIN 20 PERCENT.

SEA WATER TEMPERATURES ARE IN THE MID 80S.

THE ULTRAVIOLET INDEX FOR TUESDAY IS IN THE VERY HIGH CATEGORY.

SCZ048-049-051-181030-
BEAUFORT-COASTAL COLLETON-COASTAL JASPER-
INCLUDING THE BEACHES OF...HUNTING ISLAND...FRIPP ISLAND...
HILTON HEAD ISLAND...DAUFUSKIE ISLAND...EDISTO BEACH
325 PM EDT MON AUG 17 2009

RIP CURRENT OUTLOOK...FOR TUESDAY.
LOW RISK. WIND AND OR WAVE CONDITIONS ARE NOT EXPECTED TO SUPPORT
THE DEVELOPMENT OF RIP CURRENTS. HOWEVER...RIP CURRENTS CAN STILL
OCCUR...ESPECIALLY AT LOW SPOTS OR BREAKS IN THE SANDBAR AND IN THE
VICINITY OF STRUCTURES SUCH AS GROINS...JETTIES AND PIERS. KNOW HOW
TO SWIM AND HEED THE ADVICE OF LIFEGUARDS AND THE BEACH PATROL. PAY
ATTENTION TO FLAGS AND POSTED SIGNS.

TUESDAY...PARTLY CLOUDY. HIGHS IN THE MID 80S. SOUTHEAST WINDS
10 TO 15 MPH.

WEDNESDAY...PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 80S. SOUTH WINDS
5 TO 10 MPH. CHANCE OF RAIN 20 PERCENT.

SEA WATER TEMPERATURES ARE IN THE MID 80S.

THE ULTRAVIOLET INDEX FOR TUESDAY IS IN THE VERY HIGH CATEGORY.

GAZ117-119-139-141-181030-
COASTAL BRYAN-COASTAL CHATHAM-COASTAL LIBERTY-COASTAL MCINTOSH-
INCLUDING THE BEACHES OF...TYBEE ISLAND...OSSABAW ISLAND...
WASSAW ISLAND...ST. CATHERINES ISLAND...SAPELO ISLAND
325 PM EDT MON AUG 17 2009

RIP CURRENT OUTLOOK...FOR TUESDAY.
LOW RISK. WIND AND OR WAVE CONDITIONS ARE NOT EXPECTED TO SUPPORT
THE DEVELOPMENT OF RIP CURRENTS. HOWEVER...RIP CURRENTS CAN STILL
OCCUR...ESPECIALLY AT LOW SPOTS OR BREAKS IN THE SANDBAR AND IN THE
VICINITY OF STRUCTURES SUCH AS GROINS...JETTIES AND PIERS. KNOW HOW
TO SWIM AND HEED THE ADVICE OF LIFEGUARDS AND THE BEACH PATROL. PAY
ATTENTION TO FLAGS AND POSTED SIGNS.

TUESDAY...PARTLY CLOUDY. HIGHS IN THE MID 80S. EAST WINDS 10 TO
15 MPH.

WEDNESDAY...PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 80S. SOUTHEAST
WINDS 5 TO 10 MPH. CHANCE OF RAIN 20 PERCENT.

SEA WATER TEMPERATURES ARE IN THE MID 80S.

THE ULTRAVIOLET INDEX FOR TUESDAY IS IN THE VERY HIGH CATEGORY.

In the hours before

Special weather statement, Aug 17, 9:00 PM EDT, 1 hour 6 minutes before
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Special weather statement, Aug 17, 9:49 PM EDT, 17 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 18, 5:00 PM EDTSpecial Marine WarningLWX57 min
Aug 18, 5:21 PM EDTSpecial Marine WarningLWX84 min
Aug 18, 6:24 PM EDTSpecial Marine WarningLWX41 min
Aug 18, 7:51 PM EDTSpecial Marine WarningLWX80 min
Aug 18, 5:10 PM EDTSevere Thunderstorm WarningLWXAnne Arundel32 min
Aug 18, 5:25 PM EDTSevere Thunderstorm WarningLWXBaltimore, Carroll50 min
Aug 18, 5:28 PM EDTSevere Thunderstorm WarningLWXBaltimore, Harford, City of Baltimore47 min
Aug 18, 6:15 PM EDTSevere Thunderstorm WarningLWXBaltimore, Harford37 min
Aug 18, 7:54 PM EDTSevere Thunderstorm WarningLWXAnne Arundel36 min

Nearby

Flash Flood Warnings in Virginia, 2009Every flash flood warning in 2009

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.