Alert archive / Maryland / Flash Flood Warnings in 2000

Flash Flood Warning 3, NWS Baltimore/Washington

June 16, 2000Allegany County, Washington County, Maryland; Morgan County, West Virginia

NWS Baltimore/Washington issued this flash flood warning at Jun 16, 2000, 7:45 PM EDT for Allegany County, Washington County, Maryland; Morgan County, West Virginia. It was in force for 75 min. 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 16, 2000, 7:45 PM EDT (23:45 UTC)
Expired
Jun 16, 2000, 9:00 PM EDT
In force
75 min
Issued by
NWS Baltimore/Washington
Area
Whole counties

Counties Allegany County, MD, Washington County, MD, Morgan County, WV

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 11.8 hours before the alert went out and 181 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, Pittsburgh, PA at 12:00Z on 2000-06-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 326 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, Pittsburgh, PA at 12:00Z on 2000-06-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 228 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
326 J/kg
Mixed-layer CIN
-23 J/kg
Mixed-layer LCL
656 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
228 m²/s²
0-3 km storm-relative helicity
262 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.6

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS51 KLWX 162348
FFWLWX
MDC001-043-WVC065-170100-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BALTIMORE-WASHINGTON
745 PM EDT FRI JUN 16 2000

THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WESTERN WASHINGTON COUNTY WESTERN MARYLAND
  MORGAN COUNTY IN THE PANHANDLE OF WEST VIRGINIA
  ALLEGANY COUNTY IN WESTERN MARYLAND

* UNTIL 900 PM EDT

* AT 743 PM EDT...EMERGENCY MANAGERS REPORTED NUMEROUS SMALL STREAMS
  OUT OF THEIR BANKS. STORMS ARE MOVING TO THE NORTHEAST AT 15 MILES
  AN HOUR. HOWEVER STORMS CONTINUE TO REDEVELOP OVER THE WARNED
  AREA. UP TO AN INCH OF ADDITIONAL RAIN IS LIKELY BEFORE 9 PM.

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 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 STERLINHG VIRGINIA.

STRONG

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 16, 3:25 PM EDT, 4 hours 20 minutes earlier.

Area forecast discussion, Jun 16, 3:25 PM EDT, 4 hours 20 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BALTIMORE/WASHINGTON
325 PM EDT FRI JUN 16 2000

FEW POPCORN TSRA ACRS AREA TAFTN...BUT W/ LMTD INSTAB...NO
TRIGGER...AND NO FOCUS...SHUDNT GET TOO WDSPRD. WL HNDL W/ 20/30 POP
ELY EVE AS THEIR DEMISE SHUD COME SOON AFTR SUNSET.

DUAL CDFNT STRUCTURE IN MIDWST/GRTLKS WL APPRCH AREA THIS WKND.
APPEARS THAT 1ST WK CDFNT/PREFRNTL TROF WL MAKE RUN AT FA SAT W/
DECENT MSTR/INSTAB & MDST LLVL CONVG AHD OF IT. THIS SHUD SPPRT SOME
SHRA/TSTM SAT AFTN/EVE...AND WL GO LIKELY POPS SAT AFTN...ALTHO WL
HOLD OFF TIL LATE EAST OF RDGS.

LT SAT THE TROF WL WASH OUT/MERGE W/ APPCHG CDFNT. THIS WL PUSH INTO
AREA SUN...AND THEN STALL. EXACT FRNTL LCTN VARYING PER MDL OF
CHOICE...BUT THREAT DECENT ENUF TO GO LIKELY POPS ON SUN...AND CARRY
IT INTO SUN NGT.

THE FRNT WL PUSH NWD AS A WM FRNT AGN ON TUE. THUS...MERE PRESENCE
OF BNDRY IN HOT/UNSTBL AMS JUSTIFIES CHC POPS. WL HOLD ONTO POPS WED
SINCE HIPRES FAR OFFSHR.

1ST DRAFT WRKZFP IN AWIPS. FULL PKG WIBIS 345 PM.

EQUIP NOTE...UPR AIR TOOK A LTG HIT LAST NGT...THERE WL NO FLGT FM
LWX TIL 00Z SUN AT THE ERLIEST.

FCSTID = 50
DCA   73  87  72  82 /  20  60  40  60
BWI   71  87  70  82 /  20  60  40  60
MRB   70  86  68  80 /  30  70  40  60

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

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 15, 8:26 PM EDTSevere Thunderstorm WarningLWXAnne Arundel49 min

Nearby

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

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.