Flood in Pennsylvania, January 9, 1998

Name: Flood in Pennsylvania, January 9, 1998
Start: 1998-01-09T07:00
End: 1998-01-09T21:00
Location: Pennsylvania

January 9, 1998 · NWS PBZ · 1 event in 1 county or zone

1 flood, as filed by the National Weather Service.

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: None recorded
Crop damage: None recorded
Events: 1

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.

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

1 flood. Local standard time, as filed.

Flood, Allegheny

When: January 9, 7:00 AM EST to 9:00 PM EST
Where: Allegheny forecast zone
Coordinates: 40.469, -79.981 (the zone’s center; the record gives no point)

Widespread rainfall between 1.5 and 3.0 inches led to flooding along the Ohio River at Pittsburgh and on the lower Allegheny River at Acmetonia. The Allegheny River crested at its 17 foot flood stage at Acmetonia at 7 am EST on January 9. The Ohio River at Pittsburgh went above flood stage by 8 am on January 9, crested at 25.6 feet at 1 pm and went below flood stage by 9 pm that evening.

What these are

Flood: Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.

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

The same day elsewhere

Every storm in Pennsylvania in 1998 Every state in 1998 This day in weather history Warnings in Pennsylvania, January 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: 5638530.