Alert archive / Virginia / Flash Flood Warnings in 2002

Flash Flood Warning 16, NWS Wakefield, VA

June 18, 2002Westmoreland County, Virginia

NWS Wakefield, VA issued this flash flood warning at Jun 18, 2002, 4:45 PM EDT for Westmoreland County, Virginia. It was in force for 3 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 18, 2002, 4:45 PM EDT (20:45 UTC)
Expired
Jun 18, 2002, 7:45 PM EDT
In force
3 hr
Issued by
NWS Wakefield, VA
Area
Whole counties

County Westmoreland County, VA

The radar

The Sterling radar (KLWX), 113 km from the middle of the area, began a volume at 20:46 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.

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 8.8 hours before the alert went out and 107 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, Washington/Dulle, VA at 12:00Z on 2002-06-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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, Washington/Dulle, VA at 12:00Z on 2002-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 17 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1640 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
17 m²/s²
0-3 km storm-relative helicity
56 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WGUS51 KAKQ 182050
FFWAKQ
VAC193-182345-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE WAKEFIELD VA
ISSUED BY NATIONAL WEATHER SERVICE BALTIMORE/WASHINGTON
445 PM EDT TUE JUN 18 2002

THE NATIONAL WEATHER SERVICE IN WAKEFIELD VA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WESTMORELAND COUNTY IN EAST CENTRAL VIRGINIA

* UNTIL 745 PM EDT.

* AT 442 PM...DOPPLER RADAR INDICATED A THUNDERSTORM WITH VERY HEAVY 
  RAINFALL 18 MILES SOUTH OF LEONARDTOWN...OR ABOUT 4 MILES WEST OF  
  HAGUE.
  
  DOPPLER RADAR INDICATES THAT 4 TO 5 INCHES OF RAINFALL HAS         
  OCCURRED IN THE LAST 2 HOURS. THIS IS SUFFICIENT TO PRODUCE FLASH  
  FLOODING. IN ADDITION...LAW ENFORCEMENT OFFICIALS REPORTED WATER   
  RISING RAPIDLY AND BEGINNING TO COVER SOME ROADWAYS.

SLOW MOVING THUNDERSTORMS ARE PRODUCING TORRENTIAL RAINFALL IN THE
WARNED AREA. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH 
FLOODING IN AREAS INCLUDING MONTROSS...TEMPLEMAN...AND HAGUE. 

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE 
ROADWAY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED. MOVE TO
HIGHER GROUND.

$$

LAT...LON 3817 7677 3808 7685 3796 7664 3809 7655

MANNING
2 follow-up statements
000 
WGUS71 KAKQ 182156
FFSAKQ
VAC193-182345-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE WAKEFIELD VA
ISSUED BY NATIONAL WEATHER SERVICE BALTIMORE/WASHINGTON
550 PM EDT TUE JUN 18 2002

...A FLASH FLOOD WARNING CONTINUES UNTIL 745 PM EDT WESTMORELAND 
COUNTY...

AT 550 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THAT 4 TO 5 INCHES OF RAINFALL HAD OCCURRED ACROSS PORTIONS OF 
WESTMORELAND COUNTY. 

WHILE THE THUNDERSTORMS THAT PRODUCED THE TORRENTIAL RAINFALL HAVE 
WEAKENED TO A FEW LIGHT SHOWERS...RUNOFF FROM EARLIER HEAVY RAINS 
WILL CONTINUE TO CAUSE FLOODING PROBLEMS THROUGH 745 PM EDT...WITH 
THE WORST PROBLEMS EXPECTED ACROSS EASTERN WESTMORELAND COUNTY. 

WATER WILL BEGIN TO RECEDE ACROSS THE WARNING AREA LATER THIS 
EVENING.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAYS. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED. MOVE
TO HIGHER GROUND.

$$

MANNING
000 
WGUS71 KAKQ 182323
FFSAKQ
VAC193-182350-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE WAKEFIELD VA
721 PM EDT TUE JUN 18 2002

...THE FLASH FLOOD WARNING WHICH WAS IN EFFECT UNTIL 745 PM EDT FOR
  WESTMORELAND HAS BEEN CANCELLED...

THE HEAVY RAIN ENDED OVER THE WARNED AREA AROUND 6 PM. EVEN THOUGH 
NO ROADWAYS WERE CLOSED...SOME ROADWAYS AROUND THE COUNTY HAD HIGH 
WATER BETWEEN 5 PM AND 7 PM.  THE WATER HAS NOW RUN OFF...ENDING THE 
FLASH FLOOD THREAT. 

$$

NS
&&
LAT...LON 3815 7707 3814 7703 3801 7661 3817 7673

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 Wakefield, VA wrote its last area forecast discussion before this flash flood warning went out at Jun 18, 3:13 PM EDT, 1 hour 32 minutes earlier.

Area forecast discussion, Jun 18, 3:13 PM EDT, 1 hour 32 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WAKEFIELD, VA
950 PM ET TUE JUN 18 2002

UPDATED ZFP TO REMOVE PRECIP FROM ALL BUT WESTERN CTYS. ACTVTY
DECREASING WITH NOCTURNAL COOLING. ADJUSTED CLOUD COVER.

PREV AFD BLO

22
*******************************************************************
313 PM EDT TUE JUN 18 2002

A NEARLY STATIONARY FRONT ALONG AND OFF THE SC AND NC COAST WILL LIFT
VERY SLOWLY N AS A WARM FRONT TOMORROW AND THU. BEST CHANCE OF PCPN
WILL BE ACROSS NE NC AND SE VA AS THIS AREA IS WHERE BEST OMEGA WILL
BE LOCATED. UPPER RIDGE OVER WI EXTENDING N INTO CENTRAL CANADA
WILL GRADUALLY SHIFT E AND WILL SHIFT S/W OFF THE COAST BY 12Z THU.
BOUNDARY HANGING AROUND COAST THU WITH GOOD TO LIKELY CHANCES FOR
SE VA AND NE NC CONTINUING.

TEMPS...AVN AND ETA ARE NOT THAT DIFFERENT AND WHERE THEY ARE
DIFFERENT WILL GO WITH WARMER VERSION AS THINK THERE WILL BE
A GOOD BIT OF CLOUDS.

EXTENDED...LATEST AVN QUITE DIFFERENT THAN PREVIOUS RUN WITH
UPPER LOW OVER SE U.S. AND WILL MAKE SOME ADJUSTMENTS...ESPECIALLY
FOR NC PORTION. THERE MAY BE A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS TO THE N PART OF CWA TUE BUT SINCE IT IS DAY 7 AND
THERE IS LOW CONFIDENCE SO WILL NOT INCLUDE IN ZFP.

MARINE FCST...INVERTED TROUGH OVER THE SE CST AND HIGH PRES TO THE
NORTH WILL MAINLAND AN SOUTHEASTERLY TO EASTERLY FLOW ACROSS THE CWA
TONIGHT AND CONTINUING INTO THE EXTENDED PERIOD. AVN INDICATES
GRADIENT TIGHTENING BY THURSDAY AND WINDS INCREASING...THEN
CONTINUING INTO SAT. NO FLAGS REQUIRED THROUGH WED NIGHT...HOWEVER
POSSIBLE BY THUR.

.AKQ...
MD...NONE.
NC...NONE.
VA...NONE.

WS/RP

Nearby

Flash Flood Warnings in Virginia, 2002Every flash flood warning in 2002

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; radar from the NEXRAD Level II archive.