Alert archive / West Virginia / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 102, NWS Pittsburgh, PA
NWS Pittsburgh, PA issued this severe thunderstorm warning at Sep 2, 1990, 4:45 PM EDT for Ohio County, West Virginia. It was in force for 75 min.
The area
The counties it named.
The facts
- Issued
- Sep 2, 1990, 4:45 PM EDT (20:45 UTC)
- Expired
- Sep 2, 1990, 6:00 PM EDT
- In force
- 75 min
- Issued by
- NWS Pittsburgh, PA
- Area
- Whole counties
County Ohio County, WV
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, 8.8 hours before the alert went out and 56 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
- 692 J/kg
- Mixed-layer CIN
- -39 J/kg
- Mixed-layer LCL
- 944 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 18 m²/s²
- 0-3 km storm-relative helicity
- 90 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.7
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 2, 3:35 PM EDT, 1 hour 10 minutes before
PAZ015-WVZ001-022200- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PITTSBURGH PA 330 PM EDT SUN SEP 02 1990 ...SLOW MOVING THUNDERSTORMS WITH HEAVY DOWNPOURS OVER SOUTHWEST PENNSYLVANIA AND THE NORTHERN PANHANDLE OF WEST VIRGINIA... AT 325 PM WEATHER SERVICE RADAR SHOWED A LINE OF SHOWERS AND EMBEDDED THUNDERSTORMS EXTENDING...IN PENNSYLVANIA...FROM VANDERGRIFT TO THE NORTH HILLS OF PITTSBURGH TO HANCOCK WEST VIRGINIA AND WESTWARD INTO OHIO. THESE STORMS ARE MOVING VERY SLOWLY AND WILL DROP ALOT OF RAIN IN A SHORT PERIOD OF TIME. AN INCH OF RAIN IN AN HOUR IS POSSIBLE. MOVEMENT IS TO THE SOUTHEAST AT ONLY 20 MPH. IN ADDITION TO HEAVY DOWNPOURS AND DANGEROUS LQIGHTNING...THESE STORMS MAY ALSO PRODUCE STRONG WIND AND SMALL HAIL. ALL THOSE OUTDOORS SHOULD MOVE INSIDE. IT IS LIKELY THAT WATER WILL POND ON ROADWAYS. REMEMBER...NEVER EVER DRIVE THROUGH FLOODED ROADWAYS. STAIRS/DRZAL
Special weather statement, Sep 2, 3:41 PM EDT, 1 hour 4 minutes before
PAZ015-WVZ001-022200- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY...CORRECTED TO ADD NATIONAL WEATHER SERVICE PITTSBURGH PA HANCOCK COUNTY 330 PM EDT SUN SEP 02 1990 ...SLOW MOVING THUNDERSTORMS WITH HEAVY DOWNPOURS OVER SOUTHWEST PENNSYLVANIA AND THE NORTHERN PANHANDLE OF WEST VIRGINIA... AT 325 PM WEATHER SERVICE RADAR SHOWED A LINE OF SHOWERS AND EMBEDDED THUNDERSTORMS EXTENDING...IN PENNSYLVANIA...FROM VANDERGRIFT TO THE NORTH HILLS OF PITTSBURGH TO HANCOCK COUNTY WEST VIRGINIA AND WESTWARD INTO OHIO. THESE STORMS ARE MOVING VERY SLOWLY AND WILL DROP ALOT OF RAIN IN A SHORT PERIOD OF TIME. AN INCH OF RAIN IN AN HOUR IS POSSIBLE. MOVEMENT IS TO THE SOUTHEAST AT ONLY 20 MPH. IN ADDITION TO HEAVY DOWNPOURS AND DANGEROUS LIGHTNING...THESE STORMS MAY ALSO PRODUCE STRONG WIND AND SMALL HAIL. ALL THOSE OUTDOORS SHOULD MOVE INSIDE. IT IS LIKELY THAT WATER WILL POND ON ROADWAYS. REMEMBER...NEVER EVER DRIVE THROUGH FLOWODED ROADWAYS. STAIRS/DRZAL
The office that day
Everything else NWS Pittsburgh, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 2, 4:45 PM EDT | Severe Thunderstorm Warning | PBZ | Greene | 75 min |
| Sep 2, 4:45 PM EDT | Severe Thunderstorm Warning | PBZ | Somerset, Westmoreland | 75 min |
Nearby
Severe Thunderstorm Warnings in West Virginia, 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.