Alert archive / West Virginia / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 13, NWS Pittsburgh, PA
NWS Pittsburgh, PA issued this severe thunderstorm warning at Apr 9, 1999, 2:25 PM EDT for Ohio County, West Virginia. It was in force for 45 min. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Apr 9, 1999, 2:25 PM EDT (18:25 UTC)
- Expired
- Apr 9, 1999, 3:10 PM EDT
- In force
- 45 min
- Issued by
- NWS Pittsburgh, PA
- Area
- Whole counties
County Ohio County, WV
The radar
The Pittsburgh radar (KPBZ), 59 km from the middle of the area, began a volume at 18:28 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 9, 2:29 PM EDT | Thunderstorm Wind 50 | Wheeling, WV | Strong thunderstorm winds blew through Wheeling, with one wind gust to 50 knots recorded at the Wheeling Airport. The strong winds blew the roof off of one business in downtown Wheeling, and partially ripped the facade off of another. Power outages were repo |
| Apr 9, 2:35 PM EDT | Hail 1 | Wheeling, WV |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 9, 12:30 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 12:00Z, 6.4 hours before the alert went out and 282 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
- 52 J/kg
- Mixed-layer CIN
- -41 J/kg
- Mixed-layer LCL
- 936 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 156 m²/s²
- 0-3 km storm-relative helicity
- 200 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.7
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, Apr 9, 11:55 AM EDT, 2 hours 30 minutes before
MDZ001-OHZ039>041-048>050-057>059-068-069-PAZ007>009-013>016-020>023- 029>032-WVZ001>004-012-021>023-041-092000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 1155 AM EDT FRI APR 9 1999 ...SEVERE THUNDERSTORMS POSSIBLE THIS AFTERNOON AND EVENING... THERE IS A SLIGHT RISK FOR SEVERE THUNDERSTORMS ACROSS EAST CENTRAL OHIO...NORTHERN WEST VIRGINIA...SOUTHWESTERN PENNSYLVANIA...AND GARRETT COUNTY MARYLAND. AN UPPER LEVEL DISTURBANCE AND ASSOCIATED SURFACE LOW WILL BE APPROACHING THE REGION FROM THE WEST THIS AFTERNOON. THE ATMOSPHERE WILL REMAIN QUITE UNSTABLE AHEAD OF THIS DISTURBANCE AND THUNDERSTORMS ARE EXPECTED TO REDEVELOP ACROSS THE REGION THIS AFTERNOON. IT APPEARS THAT DAMAGING STRAIGHT-LINE WINDS AND LARGE HAIL WILL BE THE MAIN SEVERE WEATHER THREAT THIS AFTERNOON. THE THUNDERSTORMS WILL MOVE INTO EAST CENTRAL OHIO AS EARLY AS 100 TO 200 PM AND INTO WESTERN PENNSYLVANIA AND NORTHERN WEST VIRGINIA BY 300 TO 400 PM. IN ADDITION...HEAVY DOWNPOURS ASSOCIATED WITH THESE STORMS MAY PRODUCE LOCALIZED FLOODING PROBLEMS...ESPECIALLY WHERE SEVERAL STORMS PASS OVER THE SAME LOCATION. ISOLATED RAINFALL AMOUNTS OF OVER ONE INCH ARE POSSIBLE. AS A RESULT...SKYWARN AND HAM RADIO NETWORK ACTIVATION MAY BE NEEDED THIS AFTERNOON. STAY TUNED TO NOAA WEATHER RADIO AND OTHER LOCAL MEDIA SOURCES FOR FURTHER UPDATES ON THIS SEVERE WEATHER POTENTIAL. WJD/RWH
Special weather statement, Apr 9, 11:55 AM EDT, 2 hours 30 minutes before
MDZ001-OHZ039>041-048>050-057>059-068-069-PAZ007>009-013>016-020>023- 029>032-WVZ001>004-012-021>023-041-092000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 1155 AM EDT FRI APR 9 1999 ...SEVERE THUNDERSTORMS POSSIBLE THIS AFTERNOON AND EVENING... THERE IS A SLIGHT RISK FOR SEVERE THUNDERSTORMS ACROSS EAST CENTRAL OHIO...NORTHERN WEST VIRGINIA...SOUTHWESTERN PENNSYLVANIA...AND GARRETT COUNTY MARYLAND. AN UPPER LEVEL DISTURBANCE AND ASSOCIATED SURFACE LOW WILL BE APPROACHING THE REGION FROM THE WEST THIS AFTERNOON. THE ATMOSPHERE WILL REMAIN QUITE UNSTABLE AHEAD OF THIS DISTURBANCE AND THUNDERSTORMS ARE EXPECTED TO REDEVELOP ACROSS THE REGION THIS AFTERNOON. IT APPEARS THAT DAMAGING STRAIGHT-LINE WINDS AND LARGE HAIL WILL BE THE MAIN SEVERE WEATHER THREAT THIS AFTERNOON. THE THUNDERSTORMS WILL MOVE INTO EAST CENTRAL OHIO AS EARLY AS 100 TO 200 PM AND INTO WESTERN PENNSYLVANIA AND NORTHERN WEST VIRGINIA BY 300 TO 400 PM. IN ADDITION...HEAVY DOWNPOURS ASSOCIATED WITH THESE STORMS MAY PRODUCE LOCALIZED FLOODING PROBLEMS...ESPECIALLY WHERE SEVERAL STORMS PASS OVER THE SAME LOCATION. ISOLATED RAINFALL AMOUNTS OF OVER ONE INCH ARE POSSIBLE. AS A RESULT...SKYWARN AND HAM RADIO NETWORK ACTIVATION MAY BE NEEDED THIS AFTERNOON. STAY TUNED TO NOAA WEATHER RADIO AND OTHER LOCAL MEDIA SOURCES FOR FURTHER UPDATES ON THIS SEVERE WEATHER POTENTIAL. WJD/RWH
The office that day
Everything else NWS Pittsburgh, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 9, 2:33 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 58 min |
| Apr 9, 2:44 PM EDT | Severe Thunderstorm Warning | PBZ | Greene | 59 min |
| Apr 9, 2:52 PM EDT | Flash Flood Warning | PBZ | Allegheny, Washington | 3 hr |
| Apr 9, 2:54 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny | 60 min |
| Apr 9, 2:58 PM EDT | Flash Flood Warning | PBZ | Fayette, Greene | 3 hr |
| Apr 9, 3:11 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Westmoreland | 79 min |
| Apr 9, 3:39 PM EDT | Tornado Warning | PBZ | Westmoreland | 51 min |
| Apr 9, 4:06 PM EDT | Flash Flood Warning | PBZ | Beaver | 2 hr |
| Apr 9, 4:19 PM EDT | Flash Flood Warning | PBZ | Westmoreland | 3 hr |
| Apr 9, 4:23 PM EDT | Flash Flood Warning | PBZ | Butler | 3 hr |
| Apr 9, 5:51 PM EDT | Flash Flood Warning | PBZ | Washington, Westmoreland | 4 hr |
| Apr 9, 6:59 PM EDT | Flash Flood Warning | PBZ | Fayette | 3 hr |
| Apr 9, 1:02 PM EDT | Severe Thunderstorm Warning | PBZ | Coshocton, Muskingum | 43 min |
| Apr 9, 1:32 PM EDT | Severe Thunderstorm Warning | PBZ | Guernsey, Tuscarawas | 43 min |
| Apr 9, 1:45 PM EDT | Severe Thunderstorm Warning | PBZ | Noble | 45 min |
| Apr 9, 1:53 PM EDT | Severe Thunderstorm Warning | PBZ | Harrison | 45 min |
| Apr 9, 2:03 PM EDT | Severe Thunderstorm Warning | PBZ | Belmont | 59 min |
| Apr 9, 2:20 PM EDT | Severe Thunderstorm Warning | PBZ | Jefferson | 59 min |
| Apr 9, 2:22 PM EDT | Severe Thunderstorm Warning | PBZ | Marshall | 61 min |
Nearby
Severe Thunderstorm Warnings in West Virginia, 1999Every severe thunderstorm warning in 1999
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.