Alert archive / West Virginia / Tornado Watches in 1998

Tornado Watch 483

May 31, 19986 states

The Storm Prediction Center issued this tornado watch at May 31, 1998, 6:30 PM EDT for 6 states. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
May 31, 1998, 6:30 PM EDT (22:30 UTC)
Expired
Jun 1, 1998, 1:00 AM EDT
In force
7 hr
Issued by
the Storm Prediction Center
All 82 counties

Boyd County, KY, Greenup County, KY, Johnson County, KY, Lawrence County, KY, Martin County, KY, Allegany County, MD, Garrett County, MD, Athens County, OH, Belmont County, OH, Fairfield County, OH, Gallia County, OH, Guernsey County, OH, Harrison County, OH, Hocking County, OH, Jackson County, OH, Jefferson County, OH, Lawrence County, OH, Meigs County, OH, Monroe County, OH, Morgan County, OH, Muskingum County, OH, Noble County, OH, Perry County, OH, Vinton County, OH, Washington County, OH, Allegheny County, PA, Armstrong County, PA, Bedford County, PA, Blair County, PA, Cambria County, PA, Clearfield County, PA, Fayette County, PA, Fulton County, PA, Greene County, PA, Indiana County, PA, Somerset County, PA, Washington County, PA, Westmoreland County, PA, City of Winchester, VA, Frederick County, VA, Barbour County, WV, Boone County, WV, Braxton County, WV, Brooke County, WV, Cabell County, WV, Calhoun County, WV, Clay County, WV, Doddridge County, WV, Gilmer County, WV, Grant County, WV, Hampshire County, WV, Hancock County, WV, Hardy County, WV, Harrison County, WV, Jackson County, WV, Kanawha County, WV, Lewis County, WV, Lincoln County, WV, Marion County, WV, Marshall County, WV, Mason County, WV, Mineral County, WV, Monongalia County, WV, Morgan County, WV, Nicholas County, WV, Ohio County, WV, Pendleton County, WV, Pleasants County, WV, Preston County, WV, Putnam County, WV, Randolph County, WV, Ritchie County, WV, Roane County, WV, Taylor County, WV, Tucker County, WV, Tyler County, WV, Upshur County, WV, Wayne County, WV, Webster County, WV, Wetzel County, WV, Wirt County, WV, Wood County, WV

Warnings issued inside it

26 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
May 31, 6:40 PM EDTSevere Thunderstorm WarningPBZJefferson50 min
May 31, 6:56 PM EDTSevere Thunderstorm WarningPBZAllegheny, Westmoreland64 min
May 31, 6:59 PM EDTSevere Thunderstorm WarningPBZWashington51 min
May 31, 7:15 PM EDTTornado WarningPBZWashington45 min
May 31, 7:33 PM EDTSevere Thunderstorm WarningPBZFayette, Greene57 min
May 31, 7:45 PM EDTTornado WarningPBZFayette45 min
May 31, 8:21 PM EDTSevere Thunderstorm WarningPBZMuskingum54 min
May 31, 8:22 PM EDTTornado WarningCTPSomerset38 min
May 31, 8:36 PM EDTSevere Thunderstorm WarningRLXJackson39 min
May 31, 8:45 PM EDTTornado WarningCTPBedford, Somerset60 min
May 31, 8:56 PM EDTSevere Thunderstorm WarningPBZHancock34 min
May 31, 9:04 PM EDTSevere Thunderstorm WarningPBZAllegheny56 min
May 31, 9:05 PM EDTSevere Thunderstorm WarningPBZBelmont55 min
May 31, 9:16 PM EDTSevere Thunderstorm WarningPBZMarshall44 min
May 31, 9:32 PM EDTTornado WarningCTPBedford28 min
May 31, 9:39 PM EDTSevere Thunderstorm WarningPBZWestmoreland51 min
May 31, 9:41 PM EDTSevere Thunderstorm WarningPBZWashington49 min
May 31, 9:45 PM EDTTornado WarningLWXAllegany30 min
May 31, 9:45 PM EDTSevere Thunderstorm WarningCTPCambria, Somerset60 min
May 31, 9:45 PM EDTSevere Thunderstorm WarningCTPBlair60 min
May 31, 9:45 PM EDTSevere Thunderstorm WarningPBZIndiana45 min
May 31, 9:46 PM EDTSevere Thunderstorm WarningCTPFulton29 min
May 31, 10:03 PM EDTSevere Thunderstorm WarningPBZFayette57 min
May 31, 10:24 PM EDTSevere Thunderstorm WarningCTPBedford66 min
May 31, 10:39 PM EDTTornado WarningCTPBedford66 min
May 31, 10:52 PM EDTSevere Thunderstorm WarningCTPFulton38 min

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 10.5 hours before the alert went out and 124 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 1998-05-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1035 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 1998-05-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 198 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
1035 J/kg
Mixed-layer CIN
-145 J/kg
Mixed-layer LCL
1038 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
198 m²/s²
0-3 km storm-relative helicity
281 m²/s²
Significant tornado parameter
0.3
Supercell composite
4.7

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 31, 4:00 PM EDTSevere Thunderstorm WatchSPCAnderson, Ballard, Bath, Boone, Bourbon, Boyle and 60 more6 hr
May 31, 7:15 PM EDTSevere Thunderstorm WatchSPCAdair, Allen, Barren, Bell, Boyle, Breathitt and 46 more6 hr
May 31, 10:30 AM EDTSevere Thunderstorm WatchSPCAshland, Ashtabula, Carroll, Columbiana, Coshocton, Crawford and 29 more5 hr
May 31, 1:15 PM EDTSevere Thunderstorm WatchSPCAllen, Auglaize, Champaign, Crawford, Darke, Defiance and 21 more6 hr
May 31, 3:30 PM EDTTornado WatchSPCAshland, Ashtabula, Carroll, Columbiana, Coshocton, Cuyahoga and 18 more7 hr
May 31, 3:00 PM EDTTornado WatchSPCBradford, Susquehanna, Wayne, Wyoming5 hr
May 31, 5:00 PM EDTTornado WatchSPCBerks, Bucks, Carbon, Centre, Chester, Clinton and 25 more5 hr

Nearby

Tornado Watches in West Virginia, 1998Tornado Watches in Ohio, 1998Tornado Watches in Pennsylvania, 1998Every tornado watch 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.