Alert archive / West Virginia / Flash Flood Warnings in 1993

Flash Flood Warning 45, NWS Charleston, WV

April 16, 1993Allegany County, Maryland; Hampshire County, Mineral County, West Virginia

NWS Charleston, WV issued this flash flood warning at Apr 16, 1993, 9:45 AM EDT for Allegany County, Maryland; Hampshire County, Mineral County, West Virginia. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Apr 16, 1993, 9:45 AM EDT (13:45 UTC)
Expired
Apr 16, 1993, 12:45 PM EDT
In force
3 hr
Issued by
NWS Charleston, WV
Area
Whole counties

Counties Allegany County, MD, Hampshire County, WV, Mineral County, WV

The radar

The Sterling radar (KLWX), 121 km from the middle of the area, began a volume at 13:48 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, 1.8 hours before the alert went out and 129 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 1993-04-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 286 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 1993-04-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 253 square meters per square second.1939587897Sfc1 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
286 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
643 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
253 m²/s²
0-3 km storm-relative helicity
284 m²/s²
Significant tornado parameter
0.5
Supercell composite
2.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KEKN 161345
FFWEKN
MDC001-WVC023-027-031-057-071-161645-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ELKINS WV
945 AM EDT FRI APR 16 1993
 
THE NATIONAL WEATHER SERVICE IN ELKINS HAS EXTENDED THE
FLASH FLOOD WARNING EFFECTIVE UNTIL 1245 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN WEST MARYLAND
 
   ...ALLEGANY COUNTY
 
 
IN EAST WEST VIRGINIA
 
   ...GRANT COUNTY...HAMPSHIRE COUNTY...HARDY COUNTY
   ...MINERAL COUNTY...PENDLETON COUNTY
 
THE NATIONAL WEATHER SERVICE HAS EXTENDED THE FLASH FLOOD WARNING FOR
THE ABOVE MENTIONED COUNTIES. FLOODING HAS BEEN REPORTED ALONG MILL
CREEK AND CABIN RUN IN MINERAL COUNTY. NEW CREEK IN MINERAL COUNTY WAS
RISING 1 FOOT AN HOUR AND WILL LIKELY OVERLFOW ITS BANKS DURING THE NEXT
1 TO 2 HOURS. SOME EVACUATIONS HAVE OCCURRED IN MINERAL COUNTY. LUNICE
CREEK IS STILL RISING IN PETERSBURG BUT IS STARTING TO FALL ON THE UPPER
REACHES NEAR MAYSVILLE. THE STREAM WAS OUT OF ITS BANKS. PENDLETON
COUNTY REPORTS NUMEROUS SMALL STREAM FLOODING. THE SOUTH BRANCH OF THE
POTOMAC RIVER AT FRANKLIN WAS ABOVE FLOOD STAGE AND STILL RISING.
PERSONS ALONG THE SOUTH BRANCH AND THE NORTH FORK OF THE SOUTH BRANCH OF
THE POTOMAC RIVER IN PENDLETON COUNTY SHOULD BE ALERT TO RISING WATER
AND MOVE TO HIGHER GROUND IF WATERS CONTINUE TO RISE.
 
WEATHER RADAR IS INDICATING THE HEAVY RAINS HAVE MOVED EAST OF THE
WARNED COUNTIES...HOWEVER RUNOFF FROM THE RECENT RAINS WILL CONTINUE
FLOODING PROBLEMS ALONG THE STREAMS AND CREEKS FOR THE NEXT 1 TO 3
HOURS.
 
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 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.
 
 
END
 
GILKERSON
NNNN

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.

In the hours before

Special weather statement, Apr 16, 7:17 AM EDT, 2 hours 28 minutes before
WVZ005-008-009-MDZ009-161315-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ELKINS WV
717 AM EDT FRI APR 16 1993

...HEAVY RAINS ACROSS NORTHERN WEST VIRGINIA AND GARRETT COUNTY
OF WESTERN MARYLAND OVERNIGHT...

SHOWERS AND THUNDERSTORMS HAVE RUMBLED ACROSS NORTHERN WEST VIRGINIA
AND WESTERN MARYLAND OVERNIGHT PORDUCING SOME LOCALLY HEAVY RAINS.
AUTOMATED RAINGAGES INDICATE 1 TO 1.5 INCHES OF RAIN HAS FALLEN ACROSS
PORTIONS OF NORTH CENTRAL...NORTHERN MOUNTAINS AND POCAHONTAS COUNTY OF
THE GREENBREIER OF WEST VIRGINIA...GARRETT COUNTY OF WESTERN MARYLAND.

WEATHER RADAR AT 715 AM WAS INDICATING SHOWERS AND SCATTERED
THUNDERSTORMS EXTENDING EAST AND SOUTHEAST FROM A CLARKSBURG TO
MORGANTOWN LINE INTO THE POTOMAC HIGHLANDS OF WEST VIRGINIA AND WESTERN
MARYLAND. THE PRECIPITATION WAS MOVING EAST TO SOUTHEAST AROUND
40 MPH.

SMALL STREAMS COULD REACH BANKFULL WITH SOME MINOR OVERFLOW POSSIBLE
ACROSS PORTIONS OF THE ABOVE MENTIONED AREAS. MINOR FLOODING TO LOW
LYING AND POUR DRAINAGE AREAS IS POSSIBLE.

MOTORIST SHOULD DRIVE WITH CAUTION AND WATCH FOR PONDING OR FLOWING
WATER ACROSS HIGHWAYS.

MONITOR NOAA WEATHER RADIO OR COMMERCIAL BROADCAST FOR FURTHER
STATEMEN"TS AND THE LATEST UPDATED INFORMATION.

END

GILKERSON

NNNN

The office that day

Everything else NWS Charleston, WV issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 16, 6:48 AM EDTFlash Flood WarningRLXAllegany3 hr
Apr 16, 5:48 PM EDTFlash Flood WarningRLXAllegany3 hr
Apr 16, 12:44 AM EDTSevere Thunderstorm WarningRLXCalhoun, Gilmer, Ritchie31 min
Apr 16, 1:26 AM EDTSevere Thunderstorm WarningRLXClay, Nicholas34 min
Apr 16, 1:48 AM EDTSevere Thunderstorm WarningRLXBraxton, Gilmer27 min
Apr 16, 1:52 AM EDTSevere Thunderstorm WarningRLXLewis23 min
Apr 16, 6:48 AM EDTFlash Flood WarningRLXGrant, Hardy, Pendleton3 hr
Apr 16, 9:45 AM EDTFlash Flood WarningRLXGrant, Hardy, Pendleton3 hr

Nearby

Flash Flood Warnings in West Virginia, 1993Flash Flood Warnings in Maryland, 1993Every flash flood warning in 1993

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.