Alert archive / Maryland / Flash Flood Warnings in 1989

Flash Flood Warning 30, NWS Charleston, WV

June 19, 1989Garrett County, Maryland

NWS Charleston, WV issued this flash flood warning at Jun 19, 1989, 10:14 PM EDT for Garrett County, Maryland. It was in force for 61 min.

The area

The counties it named.

The facts

Issued
Jun 19, 1989, 10:14 PM EDT (02:14 UTC)
Expired
Jun 19, 1989, 11:15 PM EDT
In force
61 min
Issued by
NWS Charleston, WV
Area
Whole counties

County 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 00:00Z, 2.2 hours before the alert went out and 121 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, Pittsburgh, PA at 00:00Z on 1989-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 55 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, Pittsburgh, PA at 00:00Z on 1989-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 2 square meters per square second.193958Sfc1 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
55 J/kg
Mixed-layer CIN
-35 J/kg
Mixed-layer LCL
1399 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
2 m²/s²
0-3 km storm-relative helicity
109 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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, Jun 19, 5:51 PM EDT, 4 hours 23 minutes before
SPECIAL WEATHER STATEMENT...CORRECTION
NATIONAL WEATHER SERVICE ELKINS WV
5:45 PM EDT MON JUN 19 1989

NATIONAL WEATHER SERVICE RADAR SHOWS A CLUSTER OF SHOWERS AND
THUNDERSTORMS OVER NORTHWEST GARRETT COUNTY MARYLAND. AT 5:40 PM EDT
THE HEAVIEST SHOWERS WAS WEST OF MCHENRY MARYLAND.

THESE STORMS ARE MOVING SLOWLY TO THE NORTHEAST..AND WILL CONTINUE
HEAVY RAINFALLS FOR THE NEXT HOUR OR TWO. THE CONTINUED HEAVY
RAINFALL MAY CAUSE SOME SMALL STREAMS TO RISE QUICKLY OUT OF THEIR              BANKBANKS.

THESE STORMS WILL PRODUCE FREQUENT DANGEROUS LIGHTING..AND
THEY MAY PRODUCE STRONG GUSTY WINDS.

PEOPLE IN NORTHWEST GARRETT COUNTY MARYLAND ARE URGED TO KEEP A CLOSE
WATCH ON CREEKS AND STREAMS..AND BE PREPARED TO MOVE TO HIGHER
GROUND.

END/HILL
Special weather statement, Jun 19, 5:54 PM EDT, 4 hours 20 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE CHARLESTON WV
552 PM EDT MON JUN 19 1989

DO NOT USE RADAR SUMMARY  AFTER 7 PM..

AT 540 PM EDT..CHARLESTON WEATHER RADAR DETECTED A THUNDERSTORM
WITH HAIL AND EXTREMELY HEAVY RAIN IN EASTERN CLAY COUNTY IN
WEST VIRGINIA. THE STORM WAS MOVING TO THE NORTH AT 25 MPH.
VERY HEAVY RAIN...HAIL AND STRONG GUSTY WINDS WILL ACCOMPANY THIS
STORM AS IT MOVE NORTH THROUGH EASTERN CLAY AND SOUTH BRAXTON
COUNTY DURING THE NEXT HOUR.

ELSEWHERE SCATTERED LIGHT SHOWERS AND EMBEDDED THUNDERSTORMS
WITH HEAVY RAIN WERE LOCATED OVER CENTRAL WEST VIRGINIA.
MOVEMENT WAS TO THE NORTH AT 25 MPH.

END/LAPLANTE
Special weather statement, Jun 19, 8:55 PM EDT, 1 hour 19 minutes before
SPECIAL WEATHER STATEMENT...CORRECTION
NATIONAL WEATHER SERVICE ELKINS WV
8:30 PM EDT MON JUN 19 1989

NATIONAL WEATHER SERVICE RADAR SHOWS SHOWERS AND THUNDERSTORMS
WERE OVER MUCH OF THE NORTH CENTRAL...NORTHERN MOUNTAINS AND SOUTHERN
PORTION OF THE POTOMAC HIGHLANDS OF WEST VIRGINIA, AND NEAR MT.
SAVAGE IN NORTHEAST GARRETT COUNTY MARYLAND. THESE SHOWERS AND
THUNDERSTORMS ARE MOVING TO THE NORTHEAST AROUND 25 MPH. MODERATE
SHOWERS WERE ALSO OVER SOUTHERN SOMERSET COUNTY PENNSYLVANIA IN
THE HEADWATERS OF WILLS CREEK.

ALTHOUGH MOST OF THE SHOWERS ARE OF MODERATE INTENSITY...DUE TO THE
SLOW MOVEMENT...RAINFALL AMOUNTS MAY CAUSE SMALL STREAMS TO RISE
OUT OF THEIR BANKS RATHER QUICKLY.

THESE STORMS WILL PRODUCE FREQUENT DANGEROUS LIGHTING..AND
THEY MAY PRODUCE STRONG GUSTY WINDS.

PERSONS LIVING IN NORTHWEST NORTH CENTRAL..AND THE NORTHERN MOUNTAINS
OF WEST VIRGINIA AND GARRETT AND ALLEGANY COUNTIES IN MARYLAND ARE
URGED TO KEEP A CLOSE WATCH ON CREEKS AND STREAMS THIS EVENING..AND
BE PREPARED TO MOVE TO HIGHER GROUND.

END/HILL
Special weather statement, Jun 19, 9:15 PM EDT, 59 minutes before
BULLETIN
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BECKLEY, WV
915 PM EDT MON JUN 19 1989

...HEAVY RAINS MOVING INTO MINGO COUNTY WEST VIRGINIA...

AT 905 PM EDT WEATHER SERVICE RADAR AT BECKLEY SHOWED AN AREA OF
THUNDERSTORMS PRODUCING HEAVY RAIN MOVING INTO SOUTHERN MINGO COUNTY
WEST VIRGINIA FROM SOUTHWEST VIRGINIA AND EASTERN KENTUCKY. THE AREA
OF PRECIPITATION WAS SPREADING NORTH AT 20 MILES AN HOUR.

THESE THUNDERSTORMS WILL PRODUCE HEAVY RAINFALL AND DANGEROUS LIGHTNING
AS THEY MOVE NORTH THROUGH MINGO COUNTY DURING THE NEXT 1 TO 2 HOURS.

THIS AREA HAS ALREADY RECEIVED A LARGE AMOUNT OF RAINFALL DURING THE
PAST WEEK AND THE GROUND IS SATURATED. THEREFORE...THE HEAVY RAINS
PRODUCED BY THESE THUNDERSTORMS MAY CAUSE SMALL STREAMS AND CREEKS TO
RISE RAPIDLY TO BANKFULL.

IF YOU LIVE IN MINGO COUNTY...YOU ARE URGED TO KEEP A CLOSE WATCH ON
CREEKS AND STREAMS THIS EVENING AND BE PREPARED TO MOVE TO HIGHER GROUND
IF FLOO6DING BEGINS.

REPORT ANY FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY AND ASK THEM TO
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE.

STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST WEATHER INFORMATION.

END/MEP

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.