Alert archive / Pennsylvania / Flash Flood Warnings in 1998

Flash Flood Warning 74, NWS Pittsburgh, PA

June 2, 1998Beaver County, Pennsylvania

NWS Pittsburgh, PA issued this flash flood warning at Jun 2, 1998, 7:15 PM EDT for Beaver County, Pennsylvania. It was in force for 105 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 2, 1998, 7:15 PM EDT (23:15 UTC)
Expired
Jun 2, 1998, 9:00 PM EDT
In force
105 min
Issued by
NWS Pittsburgh, PA
Area
Whole counties

County Beaver County, PA

The radar

The Pittsburgh radar (KPBZ), 20 km from the middle of the area, began a volume at 23:16 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.

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 11.3 hours before the alert went out and 37 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 1998-06-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 158 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 1998-06-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 224 square meters per square second.19395878Sfc1 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
158 J/kg
Mixed-layer CIN
-77 J/kg
Mixed-layer LCL
1288 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
224 m²/s²
0-3 km storm-relative helicity
261 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KPIT 022316
FFWPIT
PAC007-030100-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PITTSBURGH PA
715 PM EDT TUE JUN 2 1998

THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A

   * FLASH FLOOD WARNING FOR...
     CENTRAL BEAVER COUNTY IN PENNSYLVANIA
     INCLUDING BEAVER

   * UNTIL 900 PM EDT

   * AT 712 PM EDT WEATHER SERVICE DOPPLER RADAR INDICATED STORMS    
     WITH TORRENTIAL RAINS WERE MOVING INTO BEAVER COUNTY. THIS      
     HEAVY RAIN OVER SATURATED SOIL WILL CAUSE FLOODING OF           
     STREAM...LOW-LYING AREAS...ROADWAYS AND PORR DRAINAGE AREAS.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. 
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY. 
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE 
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS 
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY 
AUTOMOBILE. IF YOUR VEHICLE STALLS, ABANDON IT IMMEDIATELY AND SEEK 
HIGHER GROUND.

TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT AGENCY
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
PITTSBURGH.

KANE

What forecasters said that day

The local office's own words before this flash flood 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 2, 5:18 PM EDT, 1 hour 57 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PENNSYLVANIA
518 PM EDT TUE JUN 02 1998

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

0505 PM    OIL CITY                  PA   .75 INCH HAIL
06/02/98   VENANGO

0508 PM    COOPERSTOWN               PA   1 INCH HAIL
06/02/98   VENANGO
Local storm report, Jun 2, 5:52 PM EDT, 1 hour 23 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PENNSYLVANIA
552 PM EDT TUE JUN 02 1998

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

0517 PM    FREDERICKTOWN             OH   1 INCH HAIL
06/02/98   COLUMBIANA

0525 PM    MONACA                    PA   .75 INCH HAIL
06/02/98   BEAVER

0528 PM    CONWAY                    PA   1 INCH HAIL
06/02/98   BEAVER

0542 PM    SHIPPINGPORT              PA   .75 INCH HAIL
06/02/98   BEAVER

0542 PM    MONACA                    PA   WIND DAMAGE
06/02/98   BEAVER                         LARGE TREE KNOCKED DOWN.

0547 PM    INGOMAR                   PA   1 INCH HAIL
06/02/98   ALLEGHENY

0550 PM    WEXFORD                   PA   1 INCH HAIL
06/02/98   ALLEGHENY
Local storm report, Jun 2, 5:52 PM EDT, 1 hour 23 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PENNSYLVANIA
552 PM EDT TUE JUN 02 1998

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

0517 PM    FREDERICKTOWN             OH   1 INCH HAIL
06/02/98   COLUMBIANA

0525 PM    MONACA                    PA   .75 INCH HAIL
06/02/98   BEAVER

0528 PM    CONWAY                    PA   1 INCH HAIL
06/02/98   BEAVER

0542 PM    SHIPPINGPORT              PA   .75 INCH HAIL
06/02/98   BEAVER

0542 PM    MONACA                    PA   WIND DAMAGE
06/02/98   BEAVER                         LARGE TREE KNOCKED DOWN.

0547 PM    INGOMAR                   PA   1 INCH HAIL
06/02/98   ALLEGHENY

0550 PM    WEXFORD                   PA   1 INCH HAIL
06/02/98   ALLEGHENY
Local storm report, Jun 2, 6:16 PM EDT, 59 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PENNSYLVANIA
616 PM EDT TUE JUN 02 1998

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

0525 PM    SHIPPINGPORT              PA   WIND DAMAGE
06/02/98   BEAVER                         LARGE TREES KNOCKED DOWN.

0555 PM    WILDWOOD                  PA   .75 INCH HAIL
06/02/98   ALLEGHENY

0556 PM    ETNA                      PA   .75 INCH HAIL
06/02/98   ALLEGHENY

0605 PM    PITTSBURGH                PA   TORNADO
06/02/98   ALLEGHENY                      MOUNT WASHINGTON SECTION.
                                          ROOF OFF BUILDING. LARGE
                                          TREES AND POWER LINES
                                          KNOCKED DOWN.

0610 PM    VERONA                    PA   .75 INCH HAIL
06/02/98   ALLEGHENY

0615 PM    PLEASANT HILLS            PA   .75 INCH HAIL
06/02/98   ALLEGHENY
Local storm report, Jun 2, 6:16 PM EDT, 59 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PENNSYLVANIA
616 PM EDT TUE JUN 02 1998

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

0525 PM    SHIPPINGPORT              PA   WIND DAMAGE
06/02/98   BEAVER                         LARGE TREES KNOCKED DOWN.

0555 PM    WILDWOOD                  PA   .75 INCH HAIL
06/02/98   ALLEGHENY

0556 PM    ETNA                      PA   .75 INCH HAIL
06/02/98   ALLEGHENY

0605 PM    PITTSBURGH                PA   TORNADO
06/02/98   ALLEGHENY                      MOUNT WASHINGTON SECTION.
                                          ROOF OFF BUILDING. LARGE
                                          TREES AND POWER LINES
                                          KNOCKED DOWN.

0610 PM    VERONA                    PA   .75 INCH HAIL
06/02/98   ALLEGHENY

0615 PM    PLEASANT HILLS            PA   .75 INCH HAIL
06/02/98   ALLEGHENY
Local storm report, Jun 2, 6:21 PM EDT, 54 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PENNSYLVANIA
621 PM EDT TUE JUN 02 1998

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

0605 PM    PITTSBURGH                PA   .75 INCH HAIL
06/02/98   ALLEGHENY                      EAST LIBERTY SECTION.

0610 PM    IRWIN                     PA   .75 INCH HAIL
06/02/98   WESTMORELAND

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 2, 4:33 PM EDTSevere Thunderstorm WarningPBZMercer57 min
Jun 2, 4:49 PM EDTSevere Thunderstorm WarningPBZVenango56 min
Jun 2, 4:57 PM EDTSevere Thunderstorm WarningPBZBeaver, Lawrence63 min
Jun 2, 5:17 PM EDTSevere Thunderstorm WarningPBZAllegheny, Butler58 min
Jun 2, 5:25 PM EDTTornado WarningPBZBeaver45 min
Jun 2, 5:29 PM EDTTornado WarningPBZAllegheny51 min
Jun 2, 5:40 PM EDTSevere Thunderstorm WarningPBZWashington50 min
Jun 2, 5:50 PM EDTSevere Thunderstorm WarningPBZWestmoreland55 min
Jun 2, 5:54 PM EDTSevere Thunderstorm WarningPBZClarion51 min
Jun 2, 6:09 PM EDTTornado WarningPBZWestmoreland61 min
Jun 2, 6:13 PM EDTTornado WarningPBZAllegheny27 min
Jun 2, 6:20 PM EDTSevere Thunderstorm WarningPBZLawrence, Mercer60 min
Jun 2, 6:25 PM EDTSevere Thunderstorm WarningPBZJefferson65 min
Jun 2, 6:35 PM EDTFlash Flood WarningPBZAllegheny, Westmoreland2 hr
Jun 2, 6:36 PM EDTTornado WarningPBZJefferson59 min
Jun 2, 6:45 PM EDTTornado WarningPBZFayette45 min
Jun 2, 6:53 PM EDTSevere Thunderstorm WarningPBZVenango57 min
Jun 2, 6:56 PM EDTTornado WarningPBZIndiana34 min
Jun 2, 6:58 PM EDTTornado WarningPBZBeaver, Lawrence62 min
Jun 2, 7:05 PM EDTTornado WarningPBZAllegheny, Butler70 min
Jun 2, 7:14 PM EDTSevere Thunderstorm WarningPBZClarion61 min
Jun 2, 7:28 PM EDTSevere Thunderstorm WarningPBZJefferson62 min
Jun 2, 7:40 PM EDTFlash Flood WarningPBZAllegheny, Westmoreland2 hr
Jun 2, 7:53 PM EDTTornado WarningPBZWestmoreland67 min
Jun 2, 7:57 PM EDTSevere Thunderstorm WarningPBZWashington58 min

Nearby

Flash Flood Warnings in Pennsylvania, 1998Every flash flood 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.