Alert archive / Maryland / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 83, NWS Charleston, WV

July 9, 1990Garrett County, Maryland

NWS Charleston, WV issued this severe thunderstorm warning at Jul 9, 1990, 8:29 PM EDT for Garrett County, Maryland. It was in force for 61 min.

The area

The counties it named.

The facts

Issued
Jul 9, 1990, 8:29 PM EDT (00:29 UTC)
Expired
Jul 9, 1990, 9:30 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, 0.5 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 1990-07-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1656 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 1990-07-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 66 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
1656 J/kg
Mixed-layer CIN
-40 J/kg
Mixed-layer LCL
688 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
66 m²/s²
0-3 km storm-relative helicity
106 m²/s²
Significant tornado parameter
0.4
Supercell composite
2.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KEKN 100029
SVREKN
MDC023-100130-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ELKINS WV
829 PM EDT MON JUL 9 1990
 
THE NATIONAL WEATHER SERVICE IN ELKINS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  930 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN WEST MARYLAND
 
   ...NORTHERN GARRETT COUNTY
 
AT 829 PM EDT RADAR SHOWED A SEVERE THUNDERSTORM OVER NORTHWESTERN
GARRETT COUNTY OF WESTERN MARYLAND NEAR FRIENDSVILLE MOVING EAST
SOUTHEAST AT 25 TO 30 MILES AN HOUR.
 
 
THIS IS A DANGEROUS STORM.  IF YOU ARE IN ITS PATH YOU SHOULD
PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND
DEADLY LIGHTNING.  PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.
 
NNNN

What forecasters said that day

The local office's own words before this severe thunderstorm 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 9, 4:26 PM EDT, 4 hours 3 minutes before
WVZ002>009-012-VA015-016-092200-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON WV
425 PM EDT MON JUL 9 1990

...SEVERE THUNDERSTORM WATCH NUMBER 606 IS IN EFFECT FOR
EXTREME NORTHWESTERN WEST VIRGINIA INCLUDING THE NORTHERN
PANHANDLE UNTIL 900 PM...

VERY STRONG THUNDERSTORMS CONTINUE TO DEVELOP ACROSS PENSYLVANIA...
OHIO..AND ON WEST INTO INDIANA. THESE STORMS ARE THE RESULT OF
HOT HUMID AIR INTERACTING WITH A COLD FRONT DRIFTING SOUTH THROUGH
OHIO AND PENSYLVANIA.

HIGH WINDS DUE TO A THUNDERSTORM CAUSED TREES AND POWER LINES TO GO
DOWN IN COSHOCTON COUNTY BETWEEN ZANESVILLE AND AKRON OH EARLIER
THIS AFTERNOON. A SEVERE THUNDERSTORM WARNING WAS ISSUED FOR THIS
STORM.

AT 215 PM THE SHOWERS AND THUNDERSTORMS WERE NORTH OF A LINE FROM JUST
NORTH OF CINCINNATI TO JUST SOUTH OF ZANESVILLE AND JUST NORTH OF THE
PENSYLVANIA/WEST VIRGINIA BORDER. THE STORMS ARE MOVING TO THE EAST
AT ABOUT 30 MPH BUT THE AREA IS DROPPING SOUTH AT ABOUT 10 MPH.

THESE STORMS WILL CONTINUE TO DEVELOP AND MOVE INTO WEST VIRGINIA
FOR THE REST OF THIS AFTERNOON AND INTO THE EVENING.

VERY HEAVY BRIEF RAIN AND FREQUENT AND INTENSE LIGHTNING IS
LIKELY WITH THESE STORMS. THEY MAY ALSO PRODUCE STRONG
DAMAGING WINDS AND LARGE HAIL.

STAY TUNED TO YOUR LOCAL RADIO OR TV STATIONS OR TO THE NEAREST
NOAA WEATHER RADIO FOR THE LATEST STATEMENTS AND WARNINGS ISSUED
BY THE NATIONAL WEATHER SERVICE.

TO REPORT SEVERE WEATHER OR FLASH FLOODING CALL YOUR NEAREST
LAW ENFORCEMENT AGENCY AND ASK THEM TO RELAY THE INFORMATION
TO THE NATIONAL WEATHER SERVICE.

DGH
Special weather statement, Jul 9, 5:56 PM EDT, 2 hours 33 minutes before
WVZ005-009-010-011-MDZ008-009-102300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ELKINS WV
5:50 PM EDT MON JUL 9 1990

A BAND OF SHOWERS AND HEAVY THUNDERSTORMS HAVE BEEN DRIFTING SOUTH
ACROSS WESTERN PENNSYLVANIA DURING THE AFTERNOON. SOME OF THE
THUNDERSTORMS HAVE BEEN PRODUCING STRONG DAMAGING WIND, AND HAIL
OF THREE-QUARTERS INCH OR LARGER.

THE SOUTHERN EDGE OF THIS BAND OF THUNDERSTORMS IS MOVING SOUTH
ACROSS THE PENNSYLVANIA/WEST VIRIGNIA BORDER INTO NORTHERN
MONONGALIA, NORTHERN PRESTON COUNTIES IN WEST VIRGINIA, AND INTO
NORTHERN GARRETT AND NORTHERN ALLEGANY COUNTIES IN MARYLAND AT 5:50
PM EDT.

PERSONS LIVING IN MONONGALIA AND PRESTON COUNTIES IN NORTHERN WEST
VIRGINIA, AND IN GARRETT AND ALLEGANY COUNTIES IN WESTERN MARYLAND
SHOULD BE ON THE LOOKOUT UNTIL 6 PM EDT FOR THREATENING WEATHER, AN
LISTEN FOR POSSIBLE THUNDERSTORM WARNINGS.

UPON THE FIRST INDICAITONS OF AN APPROCHING THUNDERSTORM, YOU SHOULD
SEEK SHELTER IN A WELL BUILT, WELL CONSTRUCTED BUILDING.

REMEMBER...ALL LIGHTNING IS LIFE THREATENING. TAKE PRECAUTIONS
IMMEDIATELY.

END/HILL/FERRELL
Special weather statement, Jul 9, 5:58 PM EDT, 2 hours 31 minutes before
WVZ005-009-010-011-MDZ008-009-102300-

SPECIAL WEATHER STATEMENT - CORRECTION
NATIONAL WEATHER SERVICE ELKINS WV
5:50 PM EDT MON JUL 9 1990

A BAND OF SHOWERS AND HEAVY THUNDERSTORMS HAVE BEEN DRIFTING SOUTH
ACROSS WESTERN PENNSYLVANIA DURING THE AFTERNOON. SOME OF THE
THUNDERSTORMS HAVE BEEN PRODUCING STRONG DAMAGING WIND, AND HAIL
OF THREE-QUARTERS INCH OR LARGER.

THE SOUTHERN EDGE OF THIS BAND OF THUNDERSTORMS IS MOVING SOUTH
ACROSS THE PENNSYLVANIA/WEST VIRIGNIA BORDER INTO NORTHERN
MONONGALIA, NORTHERN PRESTON COUNTIES IN WEST VIRGINIA, AND INTO
NORTHERN GARRETT AND NORTHERN ALLEGANY COUNTIES IN MARYLAND AT 5:50
PM EDT.

PERSONS LIVING IN MONONGALIA AND PRESTON COUNTIES IN NORTHERN WEST
VIRGINIA, AND IN GARRETT AND ALLEGANY COUNTIES IN WESTERN MARYLAND
SHOULD BE ON THE LOOKOUT UNTIL 7 PM EDT FOR THREATENING WEATHER, AN
LISTEN FOR POSSIBLE THUNDERSTORM WARNINGS.

UPON THE FIRST INDICAITONS OF AN APPROCHING THUNDERSTORM, YOU SHOULD
SEEK SHELTER IN A WELL BUILT, WELL CONSTRUCTED BUILDING.

REMEMBER...ALL LIGHTNING IS LIFE THREATENING. TAKE PRECAUTIONS
IMMEDIATELY.

END/HILL/FERRELL
Special weather statement, Jul 9, 6:11 PM EDT, 2 hours 18 minutes before
WVZ002>009-012-VA015-016-100000-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON WV
615 PM EDT MON JUL 9 1990

...SEVERE THUNDERSTORM WATCH NUMBER 606 IS IN EFFECT FOR
EXTREME NORTHWESTERN WEST VIRGINIA INCLUDING THE NORTHERN
PANHANDLE UNTIL 900 PM...

AT 600 PM STRONG THUNDERSTORMS HAVE MOVED INTO EXTREME NORTHERN
WEST VIRGINIA. THE STORMS EXTENDED FROM NEAR PARKERSBURG TO JUST
SOUTHEAST OF MOUNDSVILLE. THE STRONGEST STORMS WERE IN SOUTHERN
MARSHALL COUNTY AND NORTHWESTERN WETZEL COUNTY. THE STORMS ARE
MOVING TO THE EAST SOUTHEAST AT ABOUT 25 MPH.

THESE STROMS ARE CAPABLE OF PRODUCING DAMAGING WINDS...LARGE HAIL...
FREQUENT AND INTENSE LIGHTNING...AND BRIEF HEAVY RAIN.

PERSONS IN NORTHWESTERN WEST VIRGINIA SHOULD BE ALERT FOR
SEVERE WEATHER AND FLASH FLOODING AND BE PREPARED TO MOVE
TO A PLACE OF SAFETY. REMEMBER LIGHTNING KILLS MORE PEOPLE
ON THE AVERAGE EACH YEAR THAN HURRICANES OR TORNADOES.

THESE STORMS WILL CONTINUE TO DEVELOP AND MOVE ACROSS WEST VIRGINIA
FOR THE REST OF THIS EVENING.

STAY TUNED TO YOUR LOCAL RADIO OR TV STATIONS OR TO THE NEAREST
NOAA WEATHER RADIO FOR THE LATEST STATEMENTS AND WARNINGS ISSUED
BY THE NATIONAL WEATHER SERVICE.

TO REPORT SEVERE WEATHER OR FLASH FLOODING CALL YOUR NEAREST
LAW ENFORCEMENT AGENCY AND ASK THEM TO RELAY THE INFORMATION
TO THE NATIONAL WEATHER SERVICE.

DGH
Special weather statement, Jul 9, 8:04 PM EDT, 25 minutes before
WVZ006-100100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BECKLEY WV
805 PM EDT MON JUL 9 1990

AT 800 PM EDT NATIONAL WEATHER SERVICE RADAR AT BECKLEY SHOWED A
THUNDERSTORM ALONG THE MINGO...LOGAN COUNTY BORDER 5 MILES WEST OF
LOGAN. THIS THUNDERSTORM IS MOVING EAST 25 MILES AN HOUR.

BRIEF HEAVY RAINFALL...SMALL HAIL...STRONG GUSTY WINDS AND DANGEROUS
LIGHTNING MAY ACCOMPANY THIS STORM AS IT MOVES THROUGH LOGAN COUNTY
BETWEEN NOW AND 90}0 PM.

IF YOU ARE IN LOGAN COUNTY YOU SHOULD SEEK SAFE INDOOR SHELTER IF THIS
THUNDERSTORM APPROACHES AND REMAIN INDOORS UNTIL IT HAS PASSED.

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

END/PLATE

Nearby

Severe Thunderstorm Warnings in Maryland, 1990Every severe thunderstorm warning in 1990

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.