Flash Flood Warning 33, NWS Baltimore/Washington

Issued

Sep 3, 2000, 2:21 PM EDT (18:21 UTC)

Expired

Sep 3, 2000, 4:15 PM EDT

In force

114 min

Issued by

NWS Baltimore/Washington

Area

Whole counties

County Hardy County, WV

The Sterling radar (KLWX), 118 km from the middle of the area, began a volume at 18:20 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 031826
FFWLWX
WVC031-032015-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BALTIMORE-WASHINGTON
221 PM EDT SUN SEP 3 2000

THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EASTERN HARDY COUNTY IN EASTERN WEST VIRGINIA

* UNTIL 415 PM EDT

* AT 220 PM EDT...WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS WITH TORRENTIAL RAINS NEAR WARDENSVILLE AND
  BAKER IN NORTHEAST HARDY COUNTY. THE STORMS WERE SHOWING LITTLE
  MOVEMENT AND RADAR ESTIMATES INDICATED RAINFALL IN EXCESS OF 2
  INCHES PER HOUR.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...OTHER POOR DRAINAGE OR LOW LYING
AREAS.

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. CAMPERS SHOULD AVOID
AREAS ALONG STREAMS OR CREEKS DURING THREATENING RAINS.

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.

TO REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN STERLING VIRGINIA.

JLW/MM/JD

NWS Baltimore/Washington wrote its last area forecast discussion before this flash flood warning went out at Sep 3, 3:15 AM EDT, 11 hours 6 minutes earlier.

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BALTIMORE/WASHINGTON
315 AM EDT SUN SEP 3 2000

KLWX RADAR SHOWING A LARGE AREA OF SHOWERS AND THUNDERSTORMS OVER
SOUTH CENTRAL VA... MOVING NNE TOWARD THE NORTHERN NECK AND FAR
SOUTHERN MD.  OTHER SHOWERS BEGINNING TO BREAK OUT JUST TO THE SOUTH
OF IAD AREA. SKIES MAINLY CLOUDY... WITH A FEW THIN SPOTS SHOWING UP
ON THE IR LOOP OVER CENTRAL AND WESTERN MD.

MODELS IN GENERAL AGREEMENT WITH OVERALL PATTERN TODAY AND TONIGHT.
WEAK SHORT WAVE SHOWING UP OVER NC AND SOUTHERN VA ON LATEST WV
IMAGE. 00Z ETA AND 06Z RUC HAVE PICKED UP THIS WAVE... AND THEY BOTH
ROTATE IT SLOWLY SLOW THE AREA THIS AFTERNOON. LOW LEVEL CONVERGENCE
BOUNDARY SETTING UP OVER NWRN EDGE OF CWA... WITH MOIST
SOUTHEASTERLY FLOW CONTINUING OVER THE AREA. SHORT WAVE SHOULD HELP
FOCUS SHOWER AND THUNDERSTORM ACTIVITY OVER OUR CWA TODAY...
ESPECIALLY THE SOUTHEASTERN HALF. EXPECTING PRECIP TO BE MORE
WIDESPREAD TODAY THAN IT HAS BEEN THE PAST COUPLE OF DAYS BECAUSE OF
THIS FEATURE. AMS STILL RATHER MOIST.. WITH ETA FORECAST PW VALUES
BETWEEN 1.75 AND 2.00 INCHES TODAY. STEERING FLOW REMAINS RATHER
LIGHT.. SO WHERE SHOWERS AND STORMS DO DEVELOP THEY HAVE THE
POTENTIAL TO PRODUCE SOME HEAVY RAINFALL. 1-HOUR FFG VALUES STILL
OVER 2 INCHES FOR MOST OF THE AREA.. SO THREAT OF WIDESPREAD FLASH
FLOODING APPEARS MINIMAL. EXCEPTION TO THIS IS THE CENTRAL
SHENANDOAH VALLEY... WHERE FFG VALUES ARE BETWEEN 0.9 AND 1.5
INCHES. WILL ISSUE FFA TODAY AND TONIGHT FOR THE FAR SW CORNER OF
THE CWA.. WHERE FFG VALUES ARE LOWER.

LIGHT WESTERLY/NORTHWESTERLY FLOW BEGINNING TO MIX DOWN OVER THE
AREA ON MONDAY... AND THIS SHOULD BRING ENOUGH DRY AIR DOWN TO THE
SURFACE TO KEEP POPS IN CHANCE CATEGORY. SURFACE FRONT EXPECTED TO
MOVE THROUGH THE AREA MONDAY NIGHT SHOULD BRING AN END TO THE PRECIP
FOR A FEW DAYS. ETA/NGM ARE 6-12 HOURS SLOWER AT USHERING IN COOLER
AIR THAN AVN... AND PLAN TO STICK TO WARMER ETA/NGM FOR MONDAY NIGHT
AND TUESDAY FORECAST TEMPS.

.LWX...
DC...NONE.
MD...NONE.
VA...FLASH FLOOD WATCH TODAY AND TONIGHT VAZ021-025>026-036>039.
WV...FLASH FLOOD WATCH TODAY AND TONIGHT WVZ054.

MARGRAF!

Flash Flood Warnings in West Virginia, 2000Every flash flood warning in 2000

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.