Flash Flood Warning 6, NWS Baltimore/Washington

Issued

Jun 26, 2000, 4:46 PM EDT (20:46 UTC)

Expired

Jun 26, 2000, 5:45 PM EDT

In force

59 min

Issued by

NWS Baltimore/Washington

Area

Whole counties

Counties Howard County, MD, Montgomery County, MD

The Sterling radar (KLWX), 44 km from the middle of the area, began a volume at 20:47 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 262048
FFWLWX
MDC027-031-262145-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BALTIMORE-WASHINGTON
446 PM EDT MON JUN 26 2000

THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WESTERN HOWARD COUNTY IN CENTRAL MARYLAND
  NORTHERN MONTGOMERY COUNTY IN CENTRAL MARYLAND

* UNTIL 545 PM EDT

* AT 437 PM EDT...DOPPLER WEATHER RADAR INDICATED THUNDERSTORMS WITH
  HEAVY RAIN MOVING OVER THE SAME AREAS OF NORTHERN MONTGOMERY AND
  WESTERN HOWARD COUNTIES.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. 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 OCCURRING OR IS
IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT
ATTEMPT TO CROSS BRIDGES...DIPS...OR OTHER LOW SPOTS IF WATER COVERS
THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL
ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP 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.

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

JA/DMW

NWS Baltimore/Washington wrote its last area forecast discussion before this flash flood warning went out at Jun 26, 2:30 PM EDT, 2 hours 16 minutes earlier.

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BALTIMORE/WASHINGTON
230 PM EDT MON JUN 26 2000

MDL GUIDANCE LATE THIS AFTRN AND USING ICWF...SO FCST BASED ON 00Z
CYCLE WITH LAST MINUTE INPUT FROM WHAT IS AVBL FROM THE 12Z CYCLE.

ATMS OVR THE AREA CONTS UNSTABLE THIS AFT. NO SYNOPTIC SCALE TRIGGER
TO ACT ON. HOWEVER...ISOLD/SCT CNVCTN PSBL THRU EARLY EVE ALONG
MESOSCALE FEATURES AND OVR MTNS WHERE OROGRAPHIC LIFT WL ENHANCE
DVLPMT. AFTER SUNSET...EXPECT ACTIVITY TO DIE OFF AND BE GONE BY
MIDNGT.

LOOKS LIKE A BETTER CHC OF MORE ORGANIZED CONVECTION ON TUE. SHRTWV
MVS TOWARD THE AREA FM W. THE ASSOCD SFC BNDRY APPROACHES DURING THE
AFT/EVE HRS. WILL CONTINUE WITH THE IDEA OF LIKELY POPS. WL WORD IT
AS AFT/EVE OVR THE MTNS AND LATE AFT/EVE E OF THE MTNS. SFC BNDRY
GETS HUNG UP OVR THE AREA TUE NIGHT AND WED AS IT BECOMES PARALLEL
TO UPR LVL FLO SO WL KEEP POPS IN FCST INTO 4TH PD.

FCSTID = 15

.LW!X...
DC...NONE.
MD...NONE.
VA...NONE.
WV...NONE.

Flash Flood Warnings in Maryland, 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.