Alert archive / Virginia / Flash Flood Warnings in 2006

Flash Flood Warning 53, NWS Baltimore/Washington

June 26, 20064 counties in Virginia

NWS Baltimore/Washington issued this flash flood warning at Jun 26, 2006, 12:13 PM EDT for 4 counties in 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
Jun 26, 2006, 12:13 PM EDT (16:13 UTC)
Expired
Jun 26, 2006, 6:15 PM EDT
In force
6 hr
Issued by
NWS Baltimore/Washington
Area
Counties, with a storm outline in the text

Counties City of Manassas, VA, City of Manassas Park, VA, Fauquier County, VA, Prince William County, VA

The radar

The Sterling radar (KLWX), 27 km from the middle of the area, began a volume at 16:16 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, 4.2 hours before the alert went out and 27 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 2006-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 521 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 2006-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 145 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
521 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
454 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
145 m²/s²
0-3 km storm-relative helicity
156 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.9

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 Jun 26, 12:07 PM EDT, 6 minutes earlier.

Area forecast discussion, Jun 26, 12:07 PM EDT, 6 minutes before
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Hazardous weather outlook, Jun 26, 5:02 AM EDT, 7 hours 11 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
502 AM EDT MON JUN 26 2006

ANZ530>537-DCZ001-MDZ002>007-009>011-013-014-016>018-VAZ021-
025>031-036>042-050>057-WVZ048>055-271200-
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-ALLEGANY-WASHINGTON-FREDERICK MD-CARROLL-
NORTHERN BALTIMORE-HARFORD-MONTGOMERY-HOWARD-SOUTHERN BALTIMORE-
PRINCE GEORGES-ANNE ARUNDEL-CHARLES-ST. MARYS-CALVERT-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-GRANT-MINERAL-HAMPSHIRE-MORGAN-BERKELEY-JEFFERSON-
PENDLETON-HARDY-
502 AM EDT MON JUN 26 2006

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...TODAY AND TONIGHT

TROPICAL MOISTURE FEEDING INTO A STATIONARY FRONT JUST WEST OF
THE APPALACHIAN MOUNTAINS WILL CONTINUE TO FUEL FOR HEAVY RAINS
FROM SHOWERS AND THUNDERSTORMS. EACH THUNDERSTORM CAN PRODUCE ONE
TO TWO INCHES OF RAIN IN ABOUT AN HOURS TIME...WITH SEVERAL STORMS
FOLLOWING THE SAME PATH. THIS IS ON TOP OF THE RAINFALL THAT HAS
ALREADY BEEN RECEIVED. SINCE THE GROUND IS ALREADY SATURATED...
ADDITIONAL HEAVY RAINFALL WILL ONLY EXACERBATE ONGOING FLOODING
ISSUES.

AS A RESULT OF RECENT HEAVY RAINFALL...SIGNIFICANT WITHIN BANK
RISES ON TRIBUTARIES TO THE LOWER TIDAL POTOMAC RIVER BELOW
HARPERS FERRY ARE LIKELY. SOME MINOR FLOODING IS LIKELY ON THE
OPEQUON...CONOCOCHEAGUE CREEK AND SENECA CREEK THROUGH TUESDAY.

A SMALL CRAFT ADVISORY IS IN EFFECT DUE TO PERSISTENT SOUTHERLY
FLOW.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

A STATIONARY FRONT WILL REMAIN OVER OR NEAR THE REGION THROUGH
MIDWEEK CONTINUING THE THREAT FOR SHOWERS AND THUNDERSTORMS. GIVEN
THE HIGH MOISTURE CONTENT OF THE ATMOSPHERE...SOME STORMS COULD
PRODUCE HEAVY RAINFALL. A STREAM OF TROPICAL MOISTURE WILL CONTINUE
MOVING INTO THE REGION THROUGH MID WEEK AND CONTINUE THE THREAT OF
FLASH FLOODING FROM THUNDERSTORMS.

SIGNIFICANT WITHIN BANK RISES ON TRIBUTARIES TO THE LOWER TIDAL
POTOMAC RIVER BELOW HARPERS FERRY ARE LIKELY EARLY IN THE WEEK.
SOME MINOR FLOODING IS LIKELY ON THE OPEQUON...CONOCOCHEAGUE CREEK
AND SENECA CREEK THROUGH TUESDAY.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTERS AND EMERGENCY OFFICIALS...PLEASE RELAY ANY REPORTS
OF FLOODING TO THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA.
RAINFALL TOTALS WOULD ALSO BE APPRECIATED.

HTS

In the hours before

Local storm report, Jun 26, 8:58 AM EDT, 3 hours 15 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
858 AM EDT MON JUN 26 2006

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

0600 PM     FLASH FLOOD      BEL AIR                 39.53N 76.35W
06/24/2006                   HARFORD            MD   EMERGENCY MNGR

            PLUM TREE RUN OUT OF BANKS. VEHICLE WASHED OVER
            EMBANKMENT ON SOUTH TOLLGATE RD. WATER RESCUE UNDERWAY.

0610 PM     FLASH FLOOD      WHITE MARSH             39.38N 76.46W
06/24/2006                   BALTIMORE          MD   TRAINED SPOTTER

            SPOTTER REPORTS DEEP WATER ACROSS CLIFFORD RD

0629 PM     FLASH FLOOD      BEL AIR                 39.53N 76.35W
06/24/2006                   HARFORD            MD   COUNTY OFFICIAL

            MULTIPLE WATER RESCUES COUNTY WIDE. MULTIPLE ROAD
            CLOSURES IN CENTRAL AND SOUTHERN PART OF COUNTY.

0640 PM     FLASH FLOOD      PERRY HALL              39.41N 76.48W
06/24/2006                   BALTIMORE          MD   COUNTY OFFICIAL

            TWO SWIFTWATER RESCUES ONGOING. OFFICIALS REPORT CHEST
            HIGH WATER IN STREET.

0800 PM     FLASH FLOOD      BRANDY STATION          38.50N 77.89W
06/24/2006                   CULPEPER           VA   EMERGENCY MNGR

            ROUTES 684 NEAR 663 AND 665 IMPASSABLE DUE TO FLASH
            FLOODING

0805 PM     FLASH FLOOD      CENTREVILLE             38.85N 77.44W
06/24/2006                   FAIRFAX            VA   EMERGENCY MNGR

            SWIFT WATER RESCUE

0815 PM     FLASH FLOOD      MANASSAS                38.75N 77.49W
06/24/2006                   CITY OF MANASSAS   VA   EMERGENCY MNGR

            PRINCE WILLIAM COUNTY REPORTED NUMEROUS ROADS WITH FLASH
            FLOODING NEAR MANASSAS INCLUDING ROUTE 28. THERE ARE ALSO
            REPORTS OF FLOODED BASEMENTS IN THE SAME AREA.

0950 PM     FLASH FLOOD      KEENE                   37.87N 78.56W
06/24/2006                   ALBEMARLE          VA   EMERGENCY MNGR

            SEVERAL ROADS CLOSED IN SOUTHERN ALBEMARLE COUNTY DUE TO
            FLASH FLOODING...INCLUDING EDGE VALLEY...PLANK...AND
            TAYLORS GAP.

1050 PM     FLASH FLOOD      JOPPA                   39.43N 76.36W
06/24/2006                   HARFORD            MD   TRAINED SPOTTER

            WHITAKER MILL RD FLOODED. BEL AIR RD BETWEEN HARFORD RD
            AND CONNOLY RD FLOODED.

0730 AM     FLASH FLOOD      GAINESVILLE             38.80N 77.61W
06/25/2006                   PRINCE WILLIAM     VA   NWS EMPLOYEE

            FLOODING OCCURRING AT INTERSECTION OF INTERSTATE 66 AND
            U.S. ROUTE 29.

1118 AM     FLASH FLOOD      VIENNA                  38.90N 77.26W
06/25/2006                   FAIRFAX            VA   LAW ENFORCEMENT

            FAIRFAX POLICE REPORTED OLD COURTHOUSE ROAD AT BESLEY
            ROAD CLOSED DUE TO HIGH ROAD.

1118 AM     FLASH FLOOD      VIENNA                  38.90N 77.26W
06/25/2006                   FAIRFAX            VA   AMATEUR RADIO

            FAIFAX COUNTY POLICE REPORTED ROAD CLOSURE DUE TO HIGH
            WATER AT OLD COURTHOUSE ROAD AND BESLEY ROAD

1118 AM     FLASH FLOOD      VIENNA                  38.90N 77.26W
06/25/2006                   FAIRFAX            VA   AMATEUR RADIO

            FAIRFAX COUNTY POLICE REPORTED OLD COURTHOUSE ROAD AT
            BESLEY ROAD CLOSED DUE TO HIGH WATER.

1150 AM     FLASH FLOOD      ROCKVILLE               39.08N 77.15W
06/25/2006                   MONTGOMERY         MD   FIRE DEPT/RESCUE

            NUMEROUS REPORTS OF HIGH WATER...STRANDED CARS AND
            FLOODED BASEMENTS RECEIVED FOR THE EASTERN HALF OF
            MONTGOMERY COUNTY. SEVERAL WATER RESCUES ONGOING.

1155 AM     FLASH FLOOD      RESTON                  38.95N 77.35W
06/25/2006                   FAIRFAX            VA   AMATEUR RADIO

            FAIRFAX COUNTY POLICE REPORTED STEWART MILL ROAD AT
            BIRDFOOT LANE CLOSED DUE TO HIGH WATER.

1155 AM     FLASH FLOOD      VIENNA                  38.90N 77.26W
06/25/2006                   FAIRFAX            VA   AMATEUR RADIO

            FAIRFAX COUNTY POLICE REPORTED CLOSURE OF STEWART MILL
            ROAD AT BIRDFOOT LANE DUE TO HIGH WATER.

1155 AM     FLASH FLOOD      RESTON                  38.95N 77.35W
06/25/2006                   FAIRFAX            VA   LAW ENFORCEMENT

            FAIRFAX POLICE REPORTED STEWART MILL ROAD AT BIRDFOOT
            LANE CLOSURE DUE TO HIGH WATER.

1210 PM     FLASH FLOOD      RESTON                  38.95N 77.35W
06/25/2006                   FAIRFAX            VA   AMATEUR RADIO

            FAIRFAX COUNTY POLICE REPORTED HUNTER MILL ROAD AT CEDAR
            POND DRIVE CLOSED DUE TO HIGH WATER.

1210 PM     FLASH FLOOD      RESTON                  38.95N 77.35W
06/25/2006                   FAIRFAX            VA   AMATEUR RADIO

            FAIRFAX COUNTY POLICE REPORTED CLOSURE OF HUNTER MILL
            ROAD AT CEDAR POND DRIVE DUE TO HIGH WATER.

0430 PM     FLASH FLOOD      HAGERSTOWN              39.64N 77.72W
06/25/2006                   WASHINGTON         MD   EMERGENCY MNGR

            NUMEROUS ROADS CLOSED DUE TO FLASH FLOODING

0430 PM     FLASH FLOOD      CATLETT                 38.65N 77.64W
06/25/2006                   FAUQUIER           VA   TRAINED SPOTTER

            KETTLE RUN OUT OF BANKS

0530 PM     FLASH FLOOD      MANASSAS                38.75N 77.49W
06/25/2006                   CITY OF MANASSAS   VA   EMERGENCY MNGR

            WELLINGTON ROAD CLOSED DUE TO FLASH FLOODING

0630 PM     FLASH FLOOD      KEENE                   37.87N 78.56W
06/25/2006                   ALBEMARLE          VA   COUNTY OFFICIAL

            HIGH WATER ON ROUTE 20. OFFICIALS REPORT MULTIPLE ROADS

            IN SOUTHEAST PART OF COUNTY CLOSED DUE TO FLASH FLOODING.

0735 PM     FLASH FLOOD      GERMANTOWN              39.18N 77.26W
06/25/2006                   MONTGOMERY         MD   EMERGENCY MNGR

            4-5 WATER RESCUES ACROSS CENTRAL MONTGOMERY COUNTY DUE TO
            FLASH FLOODING

0805 PM     FLASH FLOOD      MANASSAS                38.75N 77.49W
06/25/2006                   CITY OF MANASSAS   VA   EMERGENCY MNGR

            LITEN HALL ROAD CLOSED DUE TO FLASH FLOODING

0810 PM     FLASH FLOOD      CHANTILLY               38.88N 77.41W
06/25/2006                   FAIRFAX            VA   EMERGENCY MNGR

            CAR UNDER WATER. SEVERAL OTHER ROADS IN AREA CLOSED TO
            FLASH FLOODING.

0815 PM     FLASH FLOOD      ELLICOTT CITY           39.27N 76.83W
06/25/2006                   HOWARD             MD   EMERGENCY MNGR

            NUMEROUS ROADS CLOSED COUNTYWIDE.

0848 PM     FLASH FLOOD      STERLING                39.01N 77.43W
06/25/2006                   LOUDOUN            VA   OTHER FEDERAL

            DULLES AIRPORT REPORTED WATER RESCUES ON ACCESS ROADS AND
            COMMERICAL PARKING LOTS

0910 PM     FLASH FLOOD      TOWSON                  39.40N 76.62W
06/25/2006                   BALTIMORE          MD   EMERGENCY MNGR

            NUMEROUS ROADS CLOSED COUNTYWIDE DUE TO FLASH FLOODING

0945 PM     FLASH FLOOD      WASHINGTON              38.91N 77.02W
06/25/2006                   DISTRICT OF COLUMB DC   FIRE DEPT/RESCUE

            WASHINGTON FIRE REPORTED SEVERAL ROADS CLOSED DUE TO
            FLASH FLOODING IN NORTHEAST

1015 PM     FLASH FLOOD      TOWSON                  39.40N 76.62W
06/25/2006                   BALTIMORE          MD   EMERGENCY MNGR

            SEVERAL WATER RESCUES IN PROGRESS

1015 PM     FLASH FLOOD      1 N TOWSON              39.41N 76.62W
06/25/2006                   BALTIMORE          MD   EMERGENCY MNGR

            WATER RESCUE IN PROGRESS.

1015 PM     FLASH FLOOD      TOWSON                  39.40N 76.62W
06/25/2006                   BALTIMORE          MD   EMERGENCY MNGR

            WATER RESCUE IN PROGRESS ON YORK ROAD.

1035 PM     FLASH FLOOD      BALTIMORE               39.30N 76.61W
06/25/2006                   BALTIMORE CITY     MD   UTILITY COMPANY

            STREAMS ARE COMING OUT OF THE BANKS ACROSS THE CITY.
            REPORT FROM BALTIMORE CITY WATER TREATMENT PLANT.

1048 PM     FLASH FLOOD      1 N TOWSON              39.41N 76.62W
06/25/2006                   BALTIMORE          MD   EMERGENCY MNGR

            WATER RESCUE IN PROGRESS.

1050 PM     FLASH FLOOD      FAIRFAX                 38.85N 77.30W
06/25/2006                   CITY OF FAIRFAX    VA   COUNTY OFFICIAL

            OFFICIALS REPORT ALMOST ALL MAJOR ROADS CLOSED IN FAIRFAX
            CITY.

1115 PM     FLASH FLOOD      WASHINGTON              38.91N 77.02W
06/25/2006                   DISTRICT OF COLUMB DC   COUNTY OFFICIAL

            OFFICIALS REPORT MAJOR ROAD CLOSURES DUE TO FLOODING
            INCLUDING PENNSYLVANIA AVENUE.

0100 AM     FLASH FLOOD      BRANDYWINE              38.70N 76.85W
06/26/2006                   PRINCE GEORGES     MD   LAW ENFORCEMENT

            NUMEROUS ROAD CLOSURES AND WATER RESCUES IN THE SOUTHERN
            PART OF PRINCE GEORGES COUNTY.

&&

JBROTH
Local storm report, Jun 26, 10:53 AM EDT, 1 hour 20 minutes before
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Local storm report, Jun 26, 11:07 AM EDT, 1 hour 6 minutes before
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Local storm report, Jun 26, 11:58 AM EDT, 15 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 25, 8:51 PM EDTFlash Flood WarningLWXArlington, City of Alexandria, City of Falls Church4 hr
Jun 25, 11:43 PM EDTFlash Flood WarningLWXHighland4 hr
Jun 26, 12:26 AM EDTFlash Flood WarningLWXArlington, City of Alexandria, City of Falls Church3 hr
Jun 26, 3:44 AM EDTFlash Flood WarningLWXHighland3 hr
Jun 26, 6:41 AM EDTCoastal Flood StatementLWXArlington, Fairfax, King George, Stafford, City of Alexandria, City of Fairfax and 1 more109 min
Jun 26, 8:30 AM EDTCoastal Flood WarningLWXArlington, Fairfax, City of Alexandria, City of Fairfax, City of Falls Church4 hr
Jun 26, 9:34 AM EDTFlash Flood WarningLWXAugusta, Highland, City of Staunton, City of Waynesboro6 hr
Jun 26, 10:49 AM EDTFlash Flood WarningLWXRockingham, City of Harrisonburg4 hr
Jun 26, 11:09 AM EDTFlash Flood WarningLWXArlington, Fairfax, City of Alexandria, City of Fairfax, City of Falls Church6 hr
Jun 26, 1:06 PM EDTFlash Flood WarningLWXCulpeper, Orange, Spotsylvania, Stafford, City of Fredericksburg6 hr
Jun 26, 1:17 PM EDTFlash Flood WarningLWXLoudoun3 hr
Jun 26, 2:22 PM EDTFlash Flood WarningLWXNelson6 hr
Jun 26, 4:56 PM EDTFlash Flood WarningLWXArlington, Fairfax, City of Alexandria, City of Fairfax, City of Falls Church6 hr
Jun 26, 5:39 PM EDTSpecial Marine WarningLWX96 min
Jun 26, 6:08 PM EDTFlash Flood WarningLWXPrince William, City of Manassas, City of Manassas Park6 hr
Jun 25, 8:16 PM EDTFlash Flood WarningLWXBaltimore, City of Baltimore4 hr
Jun 25, 10:13 PM EDTFlash Flood WarningLWXHarford3 hr
Jun 25, 10:14 PM EDTFlash Flood WarningLWXPrince George's3 hr
Jun 25, 10:51 PM EDTFlash Flood WarningLWXMontgomery4 hr
Jun 25, 11:04 PM EDTFlash Flood WarningLWXHoward4 hr
Jun 26, 1:01 AM EDTFlash Flood WarningLWXHarford119 min
Jun 26, 2:32 AM EDTFlash Flood WarningLWXAllegany4 hr
Jun 26, 4:37 AM EDTFlash Flood WarningLWXWashington3 hr
Jun 26, 11:15 AM EDTFlash Flood WarningLWXAnne Arundel4 hr
Jun 26, 11:31 AM EDTFlash Flood WarningLWXBaltimore, Harford, City of Baltimore6 hr
Jun 26, 1:16 PM EDTFlash Flood WarningLWXHoward6 hr
Jun 26, 3:34 PM EDTFlash Flood WarningLWXCarroll6 hr
Jun 26, 7:09 PM EDTFlash Flood WarningLWXHoward6 hr

Nearby

Flash Flood Warnings in Virginia, 2006Every flash flood warning in 2006

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.