West Virginia, 1998

Tornado and Flash Flood in West Virginia, August 9, 1998

August 9, 1998 · NWS LWX · 3 events in 1 county or zone

An area of strong to thunderstorms, producing abundant rainfall, formed near the Allegheny highlands of Grant county during the evening. Initially, thunderstorms moving over the same areas of northern Grant Co produced very heavy rainfall.

Where it happened

Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

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The toll

Deaths
0
Injuries
0
Property damage
$20,000
Crop damage
None recorded
Events
3

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS LWX wrote it up.

An area of strong to thunderstorms, producing abundant rainfall, formed near the Allegheny highlands of Grant county during the evening. Initially, thunderstorms moving over the same areas of northern Grant Co produced very heavy rainfall. Doppler radar estimated that more than 2 inches of rain fell in 2 hours. Spotters and law enforcement across the county reported between 0.95 and 4 1/2 inches of rain with the storm. One individual cell developed over Petersburg, producing a variety of weather. Local law enforcement noted minor street and basement flooding beginning around 1720EST. The storm, which became severe, blew down several six-inch diameter tree limbs and one power pole. A spotter just southwest of Petersburg on federal highway 220/West Virginia highway 2 reported 1/2 inch diameter hail which was "enough to scoop up". The hail also stripped leaves off corn stalks, but did not damage the ears.The same spotter reported a funnel cloud near the Pansy/Bethel Church area shortly before 1800EST. A tornado apparently developed shortly after, remaining on the ground for 1/2 mile. The twister (F0) was 33 feet wide, and moved generally from southeast to northwest. The tornado snapped, twisted, and/or uprooted 10 sycamore trees between 10 and 30 inches in diameter. Two locust trees were stripped, a roadside produce stand's roof was damaged, and the railing on a front porch of a home was ripped off and twisted into a ball.

The radar

The Sterling radar (KLWX), 148 km away, was scanning. The volume nearest the first event began at 22:57 UTC.

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Event by event

1 flash flood, 1 thunderstorm wind, 1 tornado. Local standard time, as filed.

Flash Flood, Grant

When
August 9, 5:20 PM EST to 6:00 PM EST
Where
Grant County, Central Portion
Property damage
$2,000
Reported by
LAW ENFORCEMENT
Coordinates
39.105, -79.196 (the zone’s center; the record gives no point)

Thunderstorm Wind, Grant

When
August 9, 6:00 PM EST
Where
Grant County, Petersburg
Property damage
$3,000
Reported by
LAW ENFORCEMENT
Coordinates
39.000, -79.120

Tornado, Grant

When
August 9, 6:00 PM EST to 6:01 PM EST
Where
Grant County, Petersburg to 1 mi S of Petersburg
Rating
F0
Path length
0.5 mi
Path width
33 yd
Property damage
$15,000
Reported by
TRAINED SPOTTER
Coordinates
38.980, -79.120

What these are

Flash Flood
Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.
Thunderstorm Wind
Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
Tornado
A violently rotating column of air in contact with the ground and extending from a thunderstorm, filed with its path, width and Fujita or Enhanced Fujita rating from the damage survey.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in West Virginia in 1998Every state in 1998This day in weather historyThe tornado archive for West Virginia, 1998Warnings in West Virginia, August 1998

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5665223, 5665224, 5665225.