Alert archive / Maryland / Flash Flood Warnings in 1989
Flash Flood Warning 48, NWS Charleston, WV
NWS Charleston, WV issued this flash flood warning at Jul 6, 1989, 3:33 PM EDT for Allegany County, Garrett County, Maryland. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Jul 6, 1989, 3:33 PM EDT (19:33 UTC)
- Expired
- Jul 6, 1989, 6:30 PM EDT
- In force
- 3 hr
- Issued by
- NWS Charleston, WV
- Area
- Whole counties
Counties Allegany County, MD, Garrett County, MD
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 12:00Z, 7.6 hours before the alert went out and 133 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
- 406 J/kg
- Mixed-layer CIN
- -55 J/kg
- Mixed-layer LCL
- 689 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 26 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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, Jul 6, 2:26 PM EDT, 1 hour 7 minutes before
SPECIAL WEATHER STATEMENT WEST VIRGINIA AND EXTREME SOUTHWEST VIRGINIA NATIONAL WEATHER SERVICE CHARLESTON WV 215 PM EDT THU JUL 6 1989 SCATTERED THUNDERSTORMS ARE DEVELOPING FROM NORTHERN PUTNAM COUNTY THROUGH JACKSON COUNTY TO NORTHERN ROANE AND SOUTHERN WIRT COUNTIES. THESE STORMS ARE MOVING TO THE NORTHEAST AT ABOUT 25 MPH. BRIEF PERIODS OF HEAVY RAIN AND DANGEROUS LIGHTNING CAN BE EXPECTED FOR THE NEXT FEW HOURS AS THE STORMS CONTINUE THEIR NORTHEAST MOVEMENT. THE STORMS SHOULD MOVE INTO PORTIONS OF CALHOUN AND RITCHIE COUNTIES BY 330 PM. PERSONS IN THE PATH OF THESE STORMS SHOULD BE ALERT FOR RAPIDLY RISING WATER ALONG CREEKS AND STREAMS AND FOR WATER COVERING ROADWAYS. ANOTHER THUNDERSTORM IS DEVELOPING IN SOUTHERN WAYNE COUNTY AND SHOULD BE MOVING INTO LINCOLN COUNTY BY 4 PM. TO REPORT SEVERE WEATHER AND FLASH FLOODING...CALL YOUR NEAREST LAW ENFORCEMENT AGENCY AND HAVE THEM PASS THE REPORT TO THE NATIONAL WEATHER SERVICE. DGH
Special weather statement, Jul 6, 3:11 PM EDT, 22 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE-ELKINS, WV 3 PM EDT WED JUL 06 1989 ...A FLASH FLOOD WATCH REMAINS IN EFFECT THIS AFTERNOON FOR WESTERN MARYLAND. THE POTOMAC HIGHLANDS AND EASTERN PANHANDLE OF WEST VIRGINIA... NATIONAL WEATHER SERVICE RADARS SHOW MODERATE SHOWERS..AND SOME THUNDERSTORMS HAVE DEVELOPED OVER NORTHERN WEST VIRGINIA EAST INTO WESTERN MARYLAND AT 3 PM EDT. THESE SHOWERS AND THUNDERSTORMS AREA MOVING VERY SLOWLY TO THE NORTHEAST. THESE SHOWERS INCREASE VERY QUICKLY IN INTENSITY..PRODUCING VERY HEAVY LOCAL DOWNPOURS THEN DECREASING IN STRENGTH. DIRECTLY UNDER THESE STORMS..THE RUNOFF MAY CAUSE SMALLER STREAMS AND RIVERS TO RISE VERY RAPIDLY. IF YOU LIVE NEAR..OR ARE CLOSE TO A SMALL STREAM OR RIVER..AND A SHOWER OR THUNDERSTORMS MOVES OVER OF UPSTREAM FROM YOU..KEEP A CLOSE WATCH ON WATER LEVELS. SEEK HIGHER GROUND IF YOU NOTICE A RAPID RISE OF WATER LEVEL. NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. PEOPLE IN WEST VIRGINIA AND WESTERN MARYLAND ARE URGED TO STAY ALERT AND LISTEN TO COMMERCIAL RADIO..TV..OR WEATHER RADIO FOR LATER STATEMENTS OR lPOSSIBLE WARNINGS. REPORT ANY FLOODING TO YOUR NEAREST LAW ENFORCEMENT AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE. END/HILL
The office that day
Everything else NWS Charleston, WV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 6, 3:09 PM EDT | Flash Flood Warning | RLX | Putnam | 96 min |
| Jul 6, 5:27 PM EDT | Flash Flood Warning | RLX | Mineral | 3 hr |
| Jul 6, 6:27 PM EDT | Severe Thunderstorm Warning | RLX | Hampshire, Hardy | 63 min |
Nearby
Flash Flood Warnings in Maryland, 1989Every flash flood warning in 1989
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.