Alert archive / Maryland / Flash Flood Warnings in 1993
Flash Flood Warning 47, NWS Charleston, WV
NWS Charleston, WV issued this flash flood warning at Apr 16, 1993, 5:48 PM EDT for Allegany County, Maryland; Mineral County, West Virginia. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Apr 16, 1993, 5:48 PM EDT (21:48 UTC)
- Expired
- Apr 16, 1993, 8:45 PM EDT
- In force
- 3 hr
- Issued by
- NWS Charleston, WV
- Area
- Whole counties
Counties Allegany County, MD, Mineral County, WV
The radar
The Sterling radar (KLWX), 130 km from the middle of the area, began a volume at 21:52 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, 9.8 hours before the alert went out and 138 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.
- 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
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KEKN 162148 FFWEKN MDC001-WVC057-170045- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE ELKINS WV 548 PM EDT FRI APR 16 1993 THE NATIONAL WEATHER SERVICE IN ELKINS HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 845 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN WEST MARYLAND ...ALLEGANY COUNTY IN EAST WEST VIRGINIA ...MINERAL COUNTY SHOWERS AND THUNDERSTORMS MOVING THROUGH WESTERN MARYLAND AND THE EASTERN PANHANDLE OF WEST VIRGINIA ARE RESULTING IN SOME HEAVY RAINSHOWERS AND SMAL HAIL OCCURRING. WITH THE PREVIOUS RAINFALL OF LAST NIGHT AND THIS MORNING ADDITIONAL RAINFALL WILL CAUSE SMALL STREAMS AND CREEKS TO OVERFLOW THEIR BANKS. THE WARNING IS IN EFFECT FOR ALLEGANY COUNTY OF WESTERN MARYLAND AND MINERAL COUNTY OF WEST VIRGINIA WHICH IS WHERE THE STRONGEST RAINFALL IS OCCURRING. 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. 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. END/GAV 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, 3:45 PM EDT, 2 hours 3 minutes before
KYZ006-OHZ009-WVZ003-162115- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HUNTINGTON WV 345 PM EDT FRI APR 16 1993 ...SHOWERS WITH SMALL HAIL IS BEING REPORTED IN THE TRI STATE... AT 335 PM...THE PAINTSVILLE AUTHORITIES IN CENTRAL JOHNSON COUNTY KENTUCKY HAVE REPORTED SMALL HAIL WITH SHOWERS. WEATHER SERVICE RADAR AT 335 PM EDT INDICATED SCATTERED SHOWERS THROUGHOUT THE TRI STATE. WITH COOL AIR ALOFT SMALL HAIL IS POSSIBLE THIS AFTERNOON IN ANY SHOWER. END/CICCONE
Special weather statement, Apr 16, 5:03 PM EDT, 45 minutes before
WVZ010-011-MDZ008-009-162300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ELKINS WV 503 PM EDT FRI APR 16 1993 ...A TORNADO WATCH CONTINUES IN EFFECT FOR BERKLEY...JEFFERSON...AND MORGAN COUNTIES IN WEST VIRGINIA UNTIL 7 PM EDT THIS EVENING.... ...A FLASH FLOOD WATCH CONTINUES IN EFFECT FOR THE POTOMAC HIGHLANDS AND EASTERN PANHANDLE OF WEST VIRGINIA UNTIL 10 PM EDT THIS EVENING... NATIONAL WEATHER SERVICE RADARS SHOW AN AREA OF RAIN WITH SHOWERS... AND SOME THUNDERSTORMS HAVE DEVELOPED FROM NORTHERN POCAHONTAS COUNTY WEST VIRGINIA TO THE NORTHEAST OVER PENDLETON...GRANT..HARDY... HAMPSHIRE AND MINERAL COUNTIES IN WEST VIRGINIA ON NORTH INTO GARRETT AND ALLEGANY COUNTIES IN WESTERN MARYLAND. THIS AREA OF SHOWERS AND THUNDERSTORMS WERE MOVING TOWARD THE NORTHEAST AROUND 25 MILES AN HOUR. AT 4:45 PM ONE-HALF INCH HAIL WAS REPORTED FROM OAKLAND IN GARRETT COUNTY MARYLAND. THE MORE INTENSE STORMS WERE LOCATED FROM NEAR OAKLAND TO GRANTSVILLE IN GARRETT COUNTY MARYLAND, AND OVER MINERAL AND WESTERN HARDY COUNTY IN WEST VIRGINIA. GUSTY WIND..HEAVY DOWNPOURS AND SMALL HAIL ARE POSSIBLE UNDER AND NEAR THE MORE INTENSE THUNDERSTORMS. ALSO...DUE TO THE RECENT SOAKING RAINFALL OF EARLIER TODAY...SMALL STREAMS OR CREEKS MAY RISE TO OR NEAR BANKFULL. REPORT ANY WIND DAMAGE OR HAIL TO THE NEAREST LAW ENFORCEMENT AGENCY.. AND ASK THAT THEY RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE. DO NOT DRIVE THROUGH WATER STANDING ON OR FLOWING ACROSS ROADWAYS. THE WATER DEPTH MAY BE TO GREAT TO PASS SAFELY. END/NWS ELKINS, WV NNNN
The office that day
Everything else NWS Charleston, WV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 16, 6:48 AM EDT | Flash Flood Warning | RLX | Allegany | 3 hr |
| Apr 16, 9:45 AM EDT | Flash Flood Warning | RLX | Allegany | 3 hr |
| Apr 16, 12:44 AM EDT | Severe Thunderstorm Warning | RLX | Calhoun, Gilmer, Ritchie | 31 min |
| Apr 16, 1:26 AM EDT | Severe Thunderstorm Warning | RLX | Clay, Nicholas | 34 min |
| Apr 16, 1:48 AM EDT | Severe Thunderstorm Warning | RLX | Braxton, Gilmer | 27 min |
| Apr 16, 1:52 AM EDT | Severe Thunderstorm Warning | RLX | Lewis | 23 min |
| Apr 16, 6:48 AM EDT | Flash Flood Warning | RLX | Grant, Hardy, Pendleton | 3 hr |
| Apr 16, 9:45 AM EDT | Flash Flood Warning | RLX | Grant, Hardy, Pendleton | 3 hr |
Nearby
Flash Flood Warnings in Maryland, 1993Flash Flood Warnings in West Virginia, 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.