Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 244, NWS Pittsburgh, PA
NWS Pittsburgh, PA issued this severe thunderstorm warning at Jun 30, 1998, 2:39 PM EDT for Allegheny County, Butler County, Pennsylvania. It was in force for 71 min. 16 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
- Jun 30, 1998, 2:39 PM EDT (18:39 UTC)
- Expired
- Jun 30, 1998, 3:50 PM EDT
- In force
- 71 min
- Issued by
- NWS Pittsburgh, PA
- Area
- Whole counties
Counties Allegheny County, PA, Butler County, PA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 30, 2:54 PM EDT | Thunderstorm Wind 74 | Countywide, PA | A microburst with winds up to 85 MPH moved diagonally from northwest to southeast across Allegheny County, leaving a wide swath of damage in its wake. These winds produced an estimated $41 million in damage across the county. Over 125,000 people across the |
| Jun 30, 2:54 PM EDT | Thunderstorm Wind 54 | Pittsburgh Intl Arpt, PA | Thunderstorm winds gusting to 62 MPH caused some minor damage at the PIttsburgh International Airport. |
| Jun 30, 2:58 PM EDT | Thunderstorm Wind 50 | Imperial, PA | Thunderstorm winds downed several trees and caused minor damage to a few homes. |
| Jun 30, 2:58 PM EDT | Hail 1.75 | Imperial, PA | |
| Jun 30, 3:05 PM EDT | Hail 0.75 | Pittsburgh, PA | |
| Jun 30, 3:08 PM EDT | Thunderstorm Wind | Butler, PA | Thunderstorm winds blew a large tree down onto SR 68. |
| Jun 30, 3:08 PM EDT | Thunderstorm Wind 50 | Pittsburgh, PA | Thunderstorm winds caused some minor damage in the Shadyside area. |
| Jun 30, 3:10 PM EDT | Thunderstorm Wind 50 | Fox Chapel, PA | Thunderstorm winds downed several trees. |
| Jun 30, 3:10 PM EDT | Thunderstorm Wind 50 | Monroeville, PA | Thunderstorm winds blew the roof off of a house, damaged several other homes, and downed numerous trees. |
| Jun 30, 3:13 PM EDT | Thunderstorm Wind 50 | Oakmont, PA | Thunderstorm winds downed several trees. |
| Jun 30, 3:13 PM EDT | Thunderstorm Wind 57 | Sarver, PA | Thunderstorm winds estimated at 65 MPH downed several large tree limbs. |
| Jun 30, 3:15 PM EDT | Thunderstorm Wind 50 | Pittsburgh, PA | Thunderstorm winds blew a tree down onto a car, crushing it. |
| Jun 30, 3:18 PM EDT | Thunderstorm Wind 50 | Allison Park, PA | Thunderstorm winds blew a large tree down onto a house. |
| Jun 30, 3:20 PM EDT | Thunderstorm Wind 50 | Penn Hills, PA | Thunderstorm winds downed an estimated 50 trees. |
| Jun 30, 3:26 PM EDT | Thunderstorm Wind | Sarver, PA | Thunderstorm winds downed several trees. Two houses sustained damage. One car was damaged by a falling tree. |
| Jun 30, 3:30 PM EDT | Hail 0.88 | Verona, PA |
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 |
|---|---|---|---|
| Jun 30, 1:30 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 12:00Z, 6.7 hours before the alert went out and 34 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
- 222 J/kg
- Mixed-layer CIN
- -25 J/kg
- Mixed-layer LCL
- 523 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 249 m²/s²
- 0-3 km storm-relative helicity
- 251 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.5
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, Jun 30, 11:05 AM EDT, 3 hours 34 minutes before
MDZ001-OHZ039>041-048>050-057>059-068-069-PAZ007>009-013>016-020>023- 029>032-WVZ001>004-012-021>023-041-302000- SEVERE WEATHER OUTLOOK...UPATED WEATHER SERVICE PITTSBURGH PA 1105 AM EDT TUE JUN 30 1998 A RISK OF SEVERE THUNDERSTORMS WILL CONTINUE THROUGH THIS EVENING. A COLD FRONT WILL MOVE THROUGH THE AREA THIS AFTERNOON AND EARLY EVENING AND WILL BRING THE THREAT OF DAMAGING WIND...LARGE HAIL AND HEAVY DOWNPOURS. IN AREAS WHERE FLOODING IS ONGOING...AS IN EAST CENTRAL OHIO...ANY ADDITIONAL RAIN WILL AGGRAVATE THE SITUATION. WHERE SOILS REMAIN SATURATED...HEAVY RAINS COULD INCREASE THE THREAT OF FLASH FLOODING. SO A FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 4PM THIS AFTERNOON FOR MUCH OF SOUTHWEST PENNSYLVANIA AND ALL OF EAST CENTRAL OHIO. SKYWARN AND HAM RADIO ACTIVATION IS LIKELY. AS THE COLD FRONT PASSES THROUGH THE AREA THIS AFTERNOON AND EVENING THE THREAT OF SEVERE WEATHER WILL END. FOR THE LATEST UP TO DATE WEATHER xINFORMATION LISTEN TO NOAA WEATHER RADIO. WEATHER INFORMATION IS ALSO AVAILABLE ON THE NATIONAL WEATHER SERVICE PITTSBURGH WEB SITE AT: WWW.NWS.NOAA.GOV/ER/PIT
Special weather statement, Jun 30, 11:05 AM EDT, 3 hours 34 minutes before
MDZ001-OHZ039>041-048>050-057>059-068-069-PAZ007>009-013>016-020>023- 029>032-WVZ001>004-012-021>023-041-302000- SEVERE WEATHER OUTLOOK...UPATED WEATHER SERVICE PITTSBURGH PA 1105 AM EDT TUE JUN 30 1998 A RISK OF SEVERE THUNDERSTORMS WILL CONTINUE THROUGH THIS EVENING. A COLD FRONT WILL MOVE THROUGH THE AREA THIS AFTERNOON AND EARLY EVENING AND WILL BRING THE THREAT OF DAMAGING WIND...LARGE HAIL AND HEAVY DOWNPOURS. IN AREAS WHERE FLOODING IS ONGOING...AS IN EAST CENTRAL OHIO...ANY ADDITIONAL RAIN WILL AGGRAVATE THE SITUATION. WHERE SOILS REMAIN SATURATED...HEAVY RAINS COULD INCREASE THE THREAT OF FLASH FLOODING. SO A FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 4PM THIS AFTERNOON FOR MUCH OF SOUTHWEST PENNSYLVANIA AND ALL OF EAST CENTRAL OHIO. SKYWARN AND HAM RADIO ACTIVATION IS LIKELY. AS THE COLD FRONT PASSES THROUGH THE AREA THIS AFTERNOON AND EVENING THE THREAT OF SEVERE WEATHER WILL END. FOR THE LATEST UP TO DATE WEATHER xINFORMATION LISTEN TO NOAA WEATHER RADIO. WEATHER INFORMATION IS ALSO AVAILABLE ON THE NATIONAL WEATHER SERVICE PITTSBURGH WEB SITE AT: WWW.NWS.NOAA.GOV/ER/PIT
Local storm report, Jun 30, 1:58 PM EDT, 41 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PENNSYLVANIA
158 PM EDT TUE JUN 30 1998
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0156 PM 1 S MINERVA OH WIND DAMAGE
06/30/98 CARROLL 60MPH WINDSLocal storm report, Jun 30, 2:05 PM EDT, 34 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PENNSYLVANIA
205 PM EDT TUE JUN 30 1998
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0155 PM SALEM OH .75 INCH HAIL
06/30/98 COLUMBIANALocal storm report, Jun 30, 2:11 PM EDT, 28 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PENNSYLVANIA
211 PM EDT TUE JUN 30 1998
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0211 PM NEW GARDEN OH 1 INCH HAIL
06/30/98 COLUMBIANA 2 ELocal storm report, Jun 30, 2:14 PM EDT, 25 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PENNSYLVANIA
214 PM EDT TUE JUN 30 1998
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0213 PM SUMMITVILLE OH WIND DAMAGE
06/30/98 COLUMBIANA 60 MPH GUSTSThe office that day
Everything else NWS Pittsburgh, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 8:33 PM EDT | Tornado Warning | PBZ | Tuscarawas | 57 min |
| Jun 29, 9:28 PM EDT | Tornado Warning | PBZ | Tuscarawas | 32 min |
| Jun 29, 9:38 PM EDT | Severe Thunderstorm Warning | PBZ | Carroll, Harrison, Jefferson | 72 min |
| Jun 29, 10:54 PM EDT | Flash Flood Warning | PBZ | Belmont, Carroll, Guernsey, Harrison, Jefferson, Tuscarawas | 12 hr |
| Jun 29, 10:54 PM EDT | Flash Flood Warning | PBZ | Coshocton, Muskingum | 12 hr |
| Jun 29, 10:54 PM EDT | Flash Flood Warning | PBZ | Monroe, Noble | 12 hr |
| Jun 30, 10:40 AM EDT | Flash Flood Warning | PBZ | Belmont, Guernsey, Harrison, Monroe, Noble | 5 hr |
| Jun 30, 10:40 AM EDT | Flash Flood Warning | PBZ | Coshocton, Tuscarawas | 5 hr |
| Jun 30, 10:40 AM EDT | Flash Flood Warning | PBZ | Muskingum | 5 hr |
| Jun 30, 1:41 PM EDT | Severe Thunderstorm Warning | PBZ | Columbiana | 57 min |
| Jun 30, 1:49 PM EDT | Severe Thunderstorm Warning | PBZ | Carroll | 61 min |
| Jun 30, 2:19 PM EDT | Flash Flood Warning | PBZ | Carroll, Columbiana, Jefferson | 5 hr |
| Jun 30, 2:21 PM EDT | Severe Thunderstorm Warning | PBZ | Jefferson | 59 min |
| Jun 30, 3:18 PM EDT | Flash Flood Warning | PBZ | Belmont, Carroll, Guernsey, Harrison, Jefferson, Tuscarawas | 13 hr |
| Jun 30, 3:18 PM EDT | Flash Flood Warning | PBZ | Monroe, Noble | 13 hr |
| Jun 30, 3:18 PM EDT | Flash Flood Warning | PBZ | Columbiana | 13 hr |
| Jun 30, 3:18 PM EDT | Flash Flood Warning | PBZ | Coshocton, Muskingum | 13 hr |
| Jun 30, 3:48 PM EDT | Severe Thunderstorm Warning | PBZ | Jefferson | 42 min |
| Jun 30, 4:12 PM EDT | Severe Thunderstorm Warning | PBZ | Carroll, Tuscarawas | 58 min |
| Jun 30, 1:06 AM EDT | Flash Flood Warning | PBZ | Greene | 10 hr |
| Jun 30, 2:19 PM EDT | Flash Flood Warning | PBZ | Beaver | 5 hr |
| Jun 30, 2:21 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 59 min |
| Jun 30, 2:55 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 60 min |
| Jun 30, 3:05 PM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 75 min |
| Jun 30, 3:09 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong | 61 min |
| Jun 30, 3:23 PM EDT | Flash Flood Warning | PBZ | Washington | 5 hr |
| Jun 30, 3:25 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana | 60 min |
| Jun 30, 4:35 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 45 min |
| Jun 30, 4:47 PM EDT | Flash Flood Warning | PBZ | Fayette, Greene | 3 hr |
| Jun 30, 5:42 PM EDT | Severe Thunderstorm Warning | PBZ | Preston | 58 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 1998Every severe thunderstorm warning in 1998
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.