Flash Flood Warning 8, NWS Baltimore/Washington

Issued

May 26, 2001, 10:19 PM EDT (02:19 UTC)

Expired

May 27, 2001, 1:15 AM EDT

In force

3 hr

Issued by

NWS Baltimore/Washington

Area

Whole counties; the outline is the Mesonet’s reconstruction

County Frederick County, VA

The Sterling radar (KLWX), 75 km from the middle of the area, began a volume at 02:20 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.

000 
WGUS51 KLWX 270222
FFWLWX
VAC069-270515-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BALTIMORE-WASHINGTON
1019 PM EDT SAT MAY 26 2001

THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS REISSUED A

* FLASH FLOOD WARNING FOR...
  FREDERICK COUNTY IN NORTHWEST VIRGINIA

* UNTIL 115 AM EDT

HEAVY RAINFALL THIS EVENING HAS CAUSED FLASH FLOODING IN THE 
NORTHWESTERN PORTION OF THE COUNTY...IN THE VICINITY OF STEPHENSON. 
THIS WATER WILL TAKE SEVERAL HOURS TO SUBSIDE.

IF WATER IS FLOWING ACROSS A ROADWAY TURN YOUR VEHICLE AROUND AND 
FIND AN ALTERNATE ROUTE. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW 
YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE 
ABANDONED QUICKLY. MOVE TO HIGHER GROUND.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE. IF YOUR VEHICLE STALLS, ABANDON IT IMMEDIATELY AND SEEK
HIGHER GROUND.

LAT...LON 3935 7834 3922 7817 3931 7811 3937 7822

ABW

NWS Baltimore/Washington wrote its last area forecast discussion before this flash flood warning went out at May 26, 9:10 PM EDT, 1 hour 9 minutes earlier.

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BALTIMORE/WASHINGTON
910 PM EDT SAT MAY 26 2001

AT 01Z...LINE OF TSRA AT BLUE RIDGE PRODUCED VERY HEAVY DOWNPOURS IN
EXCESS OF 1.5 IN/HR IN FRED VA AND SHEN COUNTIES DUE TO SLOW MOVT.
CELL NEAR WINCHESTER ALSO PRODUCED 1 INCH HAIL UP TO 2 INCHES DEEP.
THIS LINE WEAKENING NOW BUT OTHER TSRA DEVELOPING RAPIDLY N OF DC.

TSRA ASSOC WITH 700/500MB VORT WHICH 18Z MESO ETA FCSTS WILL MOVE E
OF CWA BY 08Z...AND ASSOC VVEL TO EXIT CWA BY 06Z FROM W TO E.
EXPECT ACTIVITY IN W CWA TO CONTINUE TO WEAKEN AND ANY ACTIVITY THAT
FIRES UP IN E CWA TO WEAKEN BY 06Z.

WILL UPDATE ZONES TO REFLECT CURRENT PRECIP TRENDS.  STILL EXPECTING
NEXT BATCH OF PRECIP OVER OHIO TO REACH NW ZONES AFTER 12Z SUN.

.LWX...
DC...NONE.
MD...NONE.
VA...NONE.
WV...NONE.

MMARGRAF

In the hours before

MDZ002-003-VAZ027-028-WVZ048>052-055-270130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BALTIMORE-WASHINGTON
609 PM EDT SAT MAY 26 2001

...SHOWERS AND THUNDERSTORMS BRINGING HEAVY RAIN TO THE REGION...

SHOWERS AND THUNDERSTORMS ARE INCREASING IN COVERAGE AND INTENSITY
EARLY THIS EVENING ACROSS THE POTOMAC HIGHLANDS AND THE NORTHERN
SHENANDOAH VALLEY.

THESE STORMS HAVE BEEN MOVING VERY SLOWLY... AND ARE PRODUCING HEAVY
RAINFALL. SOME LOCATIONS HAVE REPORTED OVER AN INCH AND A HALF OF
RAIN IN THE SPAN OF ONE HOUR.

THESE STORMS WILL CONTINUE TO PLAGUE THE AREA THROUGH SUNSET... AND
WILL CONTINUE TO PRODUCE VERY HEAVY RAINFALL AMOUNTS. SOME PONDING
OF WAkTER ON ROADWAYS IS LIKELY... AND PERSONS LIVING NEAR SMALL
STREAMS AND CREEKS SHOULD WATCH FOR RAPID RISES IN WATER LEVELS.

STAY TUNED TO NOAA WEATHER RADIO AND OTHER LOCAL MEDIA FOR FURTHER
DETAILS OR UPDATES.

MARGRAF!

Flash Flood Warnings in Virginia, 2001Every flash flood warning in 2001

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.