Alert archive / Maryland / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 111, NWS Charleston, WV
NWS Charleston, WV issued this severe thunderstorm warning at Sep 12, 1990, 4:21 PM EDT for Garrett County, Maryland. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- Sep 12, 1990, 4:21 PM EDT (20:21 UTC)
- Expired
- Sep 12, 1990, 6:30 PM EDT
- In force
- 2 hr
- 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 12:00Z, 8.4 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.
- Mixed-layer CAPE
- 109 J/kg
- Mixed-layer CIN
- -98 J/kg
- Mixed-layer LCL
- 1223 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 27 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 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, Sep 12, 11:04 AM EDT, 5 hours 17 minutes before
WVZ006>008-121700- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BECKLEY WV 1105 AM EDT WED SEP 12 1990 AT 1100 AM WEATHER SERVICE RADAR AT BECKLEY SHOWED A LINE OF SHOWERS AND THUNDERSTORMS EXTENDING SOUTH FROM NEAR ATHENS OHIO TO JUST EAST OF HUNTINGTON WEST VIRGINIA TO NEAR WILLIAMSON IN MINGO COUNTY. THESE SHOWERS AND THUNDERSTORMS ARE MOVING EAST AT 25 MPH. THE STRONGER THUNDERSTORMS COULD PRODUCE BRIEF VERY HEAVY RAIN...GUSTY WINDS...AND DANGEROUS LIGHTING. IF THUNDERSTORMS APPROACH..YOU SHOULD MOVE TO A SAFE INDOOR SHELTER UNTIL THE STORMS HAVE PASSED. IF YOU ARE TRAVELING...WATCH FOR PONDING OF WATER ON ROADWAYS AND REDUCED VISIBILITY. STAY TUNED TO NOAA WEATHER RADIO FO$R THE LATEST WEATHER INFORMATION. END/CALCATERRA
Special weather statement, Sep 12, 1:01 PM EDT, 3 hours 20 minutes before
WVZ006>008-121900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BECKLEY WV 100 PM EDT WED SEP 12 1990 AT 1255 PM WEATHER SERVICE RADAR AT BECKLEY SHOWED A LINE OF SHOWERS AND THUNDERSTORMS EXTENDING SOUTH FROM NEAR RIPLEY IN JACKSON COUNTY THROUGH CHARLESTON TO NEAR IAEGER IN MCDOWELL COUNTY. THE THUNDERSTORMS WILL BE MOVING THROUGH BECKLEY ABOUT 2PM THIS AFTERNOON...AND REACHING THE BLUEFIELD AREA ABOUT 230PM. THE STRONGER THUNDERSTORMS COULD PRODUCE BRIEF VERY HEAVY RAIN...GUSTY WINDS...AND DANGEROUS LIGHTING. IF THUNDERSTORMS APPROACH..YOU SHOULD MOVE TO A SAFE INDOOR SHELTER UNTIL THE STORMS HAVE PASSED. IF YOU ARE TRAVELING...WATCH FOR PONDING OF WATER ON ROADWAYS AND REDUCED VISIBILITY. STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST WEATHER INFORMATION. END/CALCATERRA
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.