Alert archive / Virginia / Flash Flood Warnings in 2000

Flash Flood Warning 9, NWS Baltimore/Washington

July 5, 2000Augusta County, Virginia

NWS Baltimore/Washington issued this flash flood warning at Jul 5, 2000, 7:11 PM EDT for Augusta County, Virginia. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued: Jul 5, 2000, 7:11 PM EDT (23:11 UTC)
Expired: Jul 5, 2000, 9:15 PM EDT
In force: 2 hr
Issued by: NWS Baltimore/Washington
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Augusta County, VA

The radar

The Roanoke radar (KFCX), 154 km from the middle of the area, began a volume at 23:11 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

Roanoke, VA (KRNK), launched 12:00Z, 11.2 hours before the alert went out and 100 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 249 J/kg
Mixed-layer CIN: -35 J/kg
Mixed-layer LCL: 808 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 21 m²/s²
0-3 km storm-relative helicity: 32 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 KLWX 052315
FFWLWX
VAC015-060115-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BALTIMORE-WASHINGTON
711 PM EDT WED JUL 5 2000

THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  AUGUSTA COUNTY IN WESTERN VIRGINIA

* UNTIL 915 PM EDT

* AT 710 PM EDT...WEATHER SERVICE DOPPLER RADAR INDICATED VERY
  HEAVY RAIN CENTERED 7 MILES WEST OF SHERANDO...DRIFTING SOUTHEAST
  AT 5 MPH.

* THE THUNDERSTORM WITH EXCESSIVE RAINFALL IS NEAR...
   SHERANDO
   STUARTS DRAFT
   WHITE HILL
   RIVERMONT
   LYNDHURST

* TOWNS ALONG THE BACK CREEK AND SOUTH RIVER SHOULD KEEP A CLOSE EYE
  ON STREAM AND RIVER LEVELS.

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 STERLvING VIRGINIA.

LAT...LON 3811 7910 3805 7918 3789 7904 3797 7889

CS/BMW

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 Jul 5, 2:00 PM EDT, 5 hours 11 minutes earlier.

Area forecast discussion, Jul 5, 2:00 PM EDT, 5 hours 11 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BALTIMORE/WASHINGTON
200 PM EDT WED JUL 5 2000

THIS FCST PACKAGE WILL FEATURE QUITE COMFORTABLE TEMPS/RH NR OR
SLGTLY BLO NRML FOR JULY AND LITTLE IN THE WAY OF PCPN...AS MEAN
L/WV TROF OVR ERN NOAM DMNTS WITH AN ANOMOUSLY DEEP UPR LOW OVR ERN
CAN AND UPR RDGG IN THE COUNTRYS MID-SECTION...RESULTG IN A CONTN OF
NWRLY FLO ALF OVR THE MID ATLC RGN WITH SFC RDGG AND RLTVLY
COOL/DRY/STBL AMS.

THE CDFNT HAS DROPPD OR REFORMD SWD THRU THE CWA WITH A DRIER/STBL
AMS GRDLY ADVCTG INTO THE AREA FM N AS EVIDNCD IN LGT NLY SFC FLO
AND LWRG DWPTS. THE MDLS HINT THAT A SCNDRY REINFORCG CDFNT NOW ACRS
NY MAY DROP ACRS OUR AREA THUR NGT. MEANWHL THE REMNANT OF THE
CMPLX AND ASSOCD VORTMAX THAT HAD BEEN OVR THE UPR MIDWEST YDA CONTS
SLIDING SEWD ACRS THE OH AND TN VLYS TDA THEN INTO THE CAROLINAS
TNGT. MOST OF THE PCPN IS PASSG TO OUR S BUT IT CONTS TO POSE A
MINOR THREAT TO OUR S AND W SXNS AND WILL INCLD A CHC EVE SHWR OR
TSTM THOSE AREAS.  CSRBL MID-HI CLD DEBRIS CONTS TO AFFECT A LRG PTN
OF THE RGN AND WILL INDCT PTLY OR MOCLDY ERLY TNGT...THEN THINNG
OVRNGT AS THE SYS PASSES BY INTO THE CAROLINAS AND ATLC ERLY THU.
CLRG ALREADY OCCURG ACRS NRN TIER.

A SCND IMPLS NOW ROUNDG THE TOP OF THE RDG THRU THE NRN PLNS WILL
SIMILARLY SLIDE SEWD INTO THE OH-TN VLYS THUR AND YET ANTHR ONE ON
FRI.  THESE DO NOT APPR TO POSE MUCH THREAT OF PCPN TO THE CWA AS
OUR OVRALL AMS/MEAN RH RMNS DRY/STBL...ANY PCPN PASSG MNLY TO OUR S
BUT EXPCT PDS OF MID-HI CLD DEBRIS SPCLY TMRW...WILL CALL IT PTCLDY
BOTH DAYS.

SFC HI CNTRD TO OUR N AND NELY SFC WNDS WILL KEEPS TEMPS AND
RH(DWPTS IN 50S TO L60S) QUITE COMFORTABLE NXT CPL DAYS WITH GENLY
LOW OR M80S MAX AND 55-65 MINS L-M50S COOLR VLYS...DOESNT GET MUCH
BTR THEN THAT IN JULY.

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

JLW

Nearby

Flash Flood Warnings in Virginia, 2000 Every 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; radar from the NEXRAD Level II archive.