Alert archive / Pennsylvania / Tornado Warnings in 1998

Tornado Warning 26, NWS Pittsburgh, PA

June 26, 1998Washington County, Pennsylvania

NWS Pittsburgh, PA issued this tornado warning at Jun 26, 1998, 5:58 PM EDT for Washington County, Pennsylvania. It was in force for 47 min. 4 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 26, 1998, 5:58 PM EDT (21:58 UTC)
Expired
Jun 26, 1998, 6:45 PM EDT
In force
47 min
Issued by
NWS Pittsburgh, PA
Area
Whole counties

County Washington County, PA

The radar

The Pittsburgh radar (KPBZ), 38 km from the middle of the area, began a volume at 22:00 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

TimeReportWhereRemark
Jun 26, 6:15 PM EDTHail 0.75Midway, PA
Jun 26, 6:16 PM EDTThunderstorm WindLawrence Hills, PAThunderstorm winds blew several trees and power lines down.
Jun 26, 6:20 PM EDTThunderstorm WindMc Murray, PAThunderstorm winds blew several trees and power lines down.
Jun 26, 6:30 PM EDTThunderstorm WindCanonsburg, PAThunderstorm winds blew several trees and power lines down.

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 nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 10.0 hours before the alert went out and 28 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 12:00Z on 1998-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3262 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 12:00Z on 1998-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 214 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
3262 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
666 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
214 m²/s²
0-3 km storm-relative helicity
222 m²/s²
Significant tornado parameter
3.4
Supercell composite
15.4

Open this sounding in Storm Lab

The text

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

342 
WFUS1 KPIT 262200 RRA
TORPIT
PAC125-262243-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE PITTSBURGH PA
558 PM EDT FRI JUN 26 1998

THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A

* TORNADO WARNING FOR...
  WASHINGTON COUNTY IN SOUTHWESTERN PENNSYLVANIA.

* UNTIL 645 PM EDT.

* AT 600 PM EDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A TORNADO NEAR THE TOWN OF...NEAR MUSE...MOVING SOUTHEAST AT 25
  MPH.

* THE TORNADO WILL BE NEAR...
  LAWRENCE AT 610 PM EDT.
  MCMURRAY AT 615 PM EDT.
  GASTONVILLE AT 620 PM EDT.

<<CALL TO ACTION>>GO TO THE BASEMENT OR A SMALL INTERIOR ROOM ON
THE LOWEST FLOOR

.END/STRAGER

What forecasters said that day

The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Local storm report, Jun 26, 1:22 PM EDT, 4 hours 36 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PENNSYLVANIA
122 PM EDT FRI JUN 26 1998

TIME(EDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0117 PM    WOODSFIELD                OH   1 INCH HAIL
06/26/98   MONROE
Local storm report, Jun 26, 1:22 PM EDT, 4 hours 36 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PENNSYLVANIA
122 PM EDT FRI JUN 26 1998

TIME(EDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0117 PM    WOODSFIELD                OH   1 INCH HAIL
06/26/98   MONROE
Local storm report, Jun 26, 2:31 PM EDT, 3 hours 27 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PENNSYLVANIA
231 PM EDT FRI JUN 26 1998

TIME(EDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0222 PM    DAYBROOK                  WV   WIND DAMAGE
06/26/98   MONONGALIA                     LARGE TREE LIMBS DOWN
Local storm report, Jun 26, 3:17 PM EDT, 2 hours 41 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PENNSYLVANIA
317 PM EDT FRI JUN 26 1998

TIME(EDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0240 PM    MORGANTOWN                WV   WIND DAMAGE
06/26/98   MONONGALIA                     LARGE LIMBS DOWN

0300 PM    TERRA ALTA                WV   WIND DAMAGE
06/26/98   PRESTON                        TREES DOWN

0315 PM    FRIENDSVILLE              MD   WIND DAMAGE
06/26/98   GARRETT                        TREES DOWN
Local storm report, Jun 26, 3:55 PM EDT, 2 hours 3 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PENNSYLVANIA
355 PM EDT FRI JUN 26 1998

TIME(EDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0220 PM    COUNTY-WIDE               WV   WIND DAMAGE
06/26/98   MARION                         TREES DOWN COUNTY-WIDE. A
                                          COUPLE OF TREES FELL INTO
                                          HOMES.

The office that day

Everything else NWS Pittsburgh, PA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 26, 2:35 PM EDTSevere Thunderstorm WarningPBZFayette45 min
Jun 26, 5:14 PM EDTSevere Thunderstorm WarningPBZWashington56 min
Jun 26, 5:40 PM EDTSevere Thunderstorm WarningPBZAllegheny60 min
Jun 26, 5:57 PM EDTSevere Thunderstorm WarningPBZWestmoreland63 min
Jun 26, 6:39 PM EDTFlash Flood WarningPBZWashington3 hr
Jun 26, 7:18 PM EDTSevere Thunderstorm WarningPBZWashington58 min

Nearby

Tornado Warnings in Pennsylvania, 1998Every tornado warning in 1998Tornadoes 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; radar from the NEXRAD Level II archive.