Alert archive / Maryland / Flash Flood Warnings in 2006

Flash Flood Warning 79, NWS Baltimore/Washington

June 27, 2006Carroll County, Frederick County, Montgomery County, Maryland

NWS Baltimore/Washington issued this flash flood warning at Jun 27, 2006, 5:25 PM EDT for Carroll County, Frederick County, Montgomery County, Maryland. 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 27, 2006, 5:25 PM EDT (21:25 UTC)
Expired
Jun 27, 2006, 11:30 PM EDT
In force
6 hr
Issued by
NWS Baltimore/Washington
Area
Counties, with a storm outline in the text

Counties Carroll County, MD, Frederick County, MD, Montgomery County, MD

The radar

The Sterling radar (KLWX), 52 km from the middle of the area, began a volume at 21:27 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 Jun 27, 2:49 PM EDT, 2 hours 36 minutes earlier.

Area forecast discussion, Jun 27, 2:49 PM EDT, 2 hours 36 minutes before
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Hazardous weather outlook, Jun 27, 3:52 PM EDT, 1 hour 33 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
352 PM EDT TUE JUN 27 2006

ANZ530>537-DCZ001-MDZ002>007-009>011-013-014-016>018-VAZ021-
025>031-036>042-050>057-WVZ048>055-281000-
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-
352 PM EDT TUE JUN 27 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...THIS AFTERNOON AND TONIGHT

TROPICAL MOISTURE CONTINUES TO STREAM NORTHWARD ACROSS THE
AREA...WITH WIDESPREAD SHOWERS AND THUNDERSTORMS EXPECTED OVERNIGHT.
THUNDERSTORMS WILL HAVE THE POTENTIAL TO PRODUCE ONE TO TWO INCHES
OF RAIN IN ABOUT AN HOURS TIME. IN ADDITION...STORMS WILL REPEATEDLY
MOVE OVER THE SAME AREAS. THE GROUND IS ALREADY SATURATED AND
ADDITIONAL HEAVY RAINFALL WILL ONLY EXACERBATE ONGOING FLOODING
PROBLEMS. THE EXTENDED NATURE OF THE HEAVY RAINFALL OVER THE LAST
FEW DAYS...COMBINED WITH HIGH RIVER...CREEK AND STREAM LEVELS
HAVE SET THE STAGE FOR A VERY DANGEROUS SITUATION. ANY ADDITIONAL
HEAVY RAINFALL WILL QUICKLY LEAD TO FLASH FLOODING. SEE WBCFFALWX
FOR FURTHER DETAILS.

WHILE FLASH FLOODING WILL BE THE PRIMARY CONCERN...LOCAL DAMAGING
STRAIGHT LINE WINDS FROM DOWNBURSTS OR AN ISOLATED TORNADO WILL
BE POSSIBLE AS WELL...ESPECIALLY ALONG AND EAST OF THE BLUE RIDGE.

TIDES ARE CURRENTLY RUNNING ONE TO TWO FEET ABOVE NORMAL. WITH A
CONTINUED SOUTHERLY FETCH...MODERATE COASTAL FLOODING WILL BE
POSSIBLE AT HIGH TIDE TONIGHT. A COASTAL FLOOD WATCH HAS BEEN
POSTED FOR TONIGHT FOR THE EASTERN SHORELINE OF THE TIDAL POTOMAC
THROUGH CHARLES AND SAINT MARYS COUNTIES...THE WESTERN SHORE OF
THE POTOMAC FROM PRINCE WILLIAM COUNTY THROUGH ALEXANDRIA...AS
WELL AS THE DISTRICT OF COLUMBIA...AND THE WESTERN SHORELINE OF
THE CHESAPEAKE BAY. SEE WBCCFWLWX FOR FURTHER DETAILS.

SIGNIFICANT RISES CAN BE EXPECTED IN THE POTOMAC AND RAPPAHANNOCK
BASINS...WITH SOME EXCEEDING FLOOD STAGE. OF CONCERN AT THIS TIME
INCLUDE SENECA CREEK...GOOSE CREEK...MONOCACY RIVER...OPEQUON
CREEK...AND CONOCOCHEAGUE CREEK.

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

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

SIGNIFICANT AND WIDESPREAD RIVER FLOODING IS EXPECTED DURING THE
MIDWEEK AS WATER FROM THE RECENT HEAVY RAINFALL DRAINS THROUGH THE
POTOMAC AND RAPPAHANNOCK BASINS. CRESTS AT MANY FORECAST POINTS
SHOULD OCCUR WEDNESDAY OR THURSDAY.

TIDAL DEPARTURES WILL REMAIN HIGH THROUGH WEDNESDAY.

.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.

In the hours before

Local storm report, Jun 27, 3:45 PM EDT, 1 hour 40 minutes before
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Local storm report, Jun 27, 3:58 PM EDT, 1 hour 27 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
358 PM EDT TUE JUN 27 2006

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

0330 PM     FLASH FLOOD      HAGERSTOWN              39.64N 77.72W
06/27/2006                   WASHINGTON         MD   FIRE DEPT/RESCUE

            SEVERAL ROAD CLOSURES IN HAGERSTOWN. BASEMENT FLOODING
            REPORTED.

&&

SMZ
Local storm report, Jun 27, 4:59 PM EDT, 26 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 26, 10:47 PM EDTFlash Flood WarningLWXArlington, Fairfax, City of Alexandria, City of Fairfax, City of Falls Church3 hr
Jun 27, 12:10 AM EDTFlash Flood WarningLWXPrince William, City of Manassas, City of Manassas Park6 hr
Jun 27, 4:04 AM EDTCoastal Flood WatchLWXArlington, Fairfax, City of Alexandria, City of Fairfax, City of Falls Church14 hr
Jun 27, 4:04 AM EDTCoastal Flood StatementLWXArlington, Fairfax, City of Alexandria, City of Fairfax, City of Falls Church7 hr
Jun 27, 5:41 AM EDTFlash Flood WarningLWXArlington, City of Alexandria4 hr
Jun 27, 6:08 AM EDTFlash Flood WarningLWXPrince William, City of Manassas3 hr
Jun 27, 6:14 AM EDTFlash Flood WarningLWXCity of Manassas Park3 hr
Jun 27, 11:57 AM EDTFlash Flood WarningLWXAugusta, Highland, Nelson, City of Staunton, City of Waynesboro4 hr
Jun 27, 12:50 PM EDTFlash Flood WarningLWXSpotsylvania, Stafford, City of Fredericksburg6 hr
Jun 27, 1:53 PM EDTFlash Flood WarningLWXClarke, Fauquier, Loudoun6 hr
Jun 27, 2:36 PM EDTFlash Flood WarningLWXAlbemarle, Greene, Madison, City of Charlottesville6 hr
Jun 27, 2:43 PM EDTFlash Flood WarningLWXPage, Rappahannock, Warren6 hr
Jun 27, 3:34 PM EDTFlash Flood WarningLWXFrederick, City of Winchester6 hr
Jun 27, 3:49 PM EDTFlash Flood WarningLWXAugusta, Nelson, Rockingham, Shenandoah, City of Harrisonburg, City of Staunton and 1 more6 hr
Jun 27, 4:22 PM EDTFlash Flood WarningLWXCulpeper, Orange6 hr
Jun 27, 4:41 PM EDTSpecial Marine WarningLWX2 hr
Jun 27, 6:08 PM EDTCoastal Flood WarningLWXArlington, Fairfax, King George, Stafford, City of Alexandria, City of Fairfax and 1 more17 hr
Jun 27, 6:10 PM EDTFlash Flood WarningLWXArlington, City of Alexandria, City of Falls Church6 hr
Jun 27, 6:43 PM EDTSpecial Marine WarningLWX62 min
Jun 27, 4:20 AM EDTFlash Flood WarningLWXHarford6 hr
Jun 27, 1:30 PM EDTFlash Flood WarningLWXWashington6 hr
Jun 27, 3:00 PM EDTFlash Flood WarningLWXAnne Arundel, Baltimore, Harford, City of Baltimore6 hr
Jun 27, 5:57 PM EDTTornado WarningLWXCharles, Saint Mary's48 min
Jun 27, 7:23 PM EDTFlash Flood WarningLWXWashington4 hr
Jun 27, 4:57 PM EDTFlash Flood WarningLWXHampshire, Hardy, Morgan6 hr

Nearby

Flash Flood Warnings in Maryland, 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; radar from the NEXRAD Level II archive.