Flood, Armstrong
- When
- January 25, 11:00 PM EST to January 27, 10:00 AM EST
- Where
- Armstrong forecast zone
- Property damage
- $1,000
- Coordinates
- 40.812, -79.464 (the zone’s center; the record gives no point)
Flood in Pennsylvania, January 25 to 27, 1997
Ice began building up on the Allegheny River and its tributaries since the 11th of January. Below zero temperatures on the 18th and 19th rapidly increased ice development.
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
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- $1,000
- 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.
What happened
The episode as NWS PBZ wrote it up.
Ice began building up on the Allegheny River and its tributaries since the 11th of January. Below zero temperatures on the 18th and 19th rapidly increased ice development. Ice movement on the Allegheny River upstream of Parker began to affect the stage at Parker and a large ice jam formed from near Parker downstream for several miles to Miller's Eddy. It wasn't until late on the 25th that the stage at Parker went above its 20 foot flood stage. Only very minimal property damage occurred. The river crested at 20.8 feet early on the morning of the 26th. Ice continued to move and then re-jam downstream causing fluctuations in the river level. The river went below flood stage on the morning of the 27th, but had two subsequent rises just above flood stage.
The radar
The national radar mosaic for the moment the first event began.
Event by event
1 flood. Local standard time, as filed.
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
- Winter Storm in Utah, January 25 to 27, 1997
- Heavy Snow in Colorado, January 25 to 26, 1997
- Flash Flooding in California, January 25, 1997
- Heavy Snow in New Mexico, January 25 to 27, 1997
- Heavy Snow in Michigan, January 25 to 26, 1997
- Heavy Snow in Montana, January 25 to 26, 1997
- Heavy Snow in Wisconsin, January 25, 1997
- Flooding in Nevada, January 25 to 26, 1997
- Heavy Snow in Wyoming, January 25 to 26, 1997
- Heavy Snow in Colorado, January 25 to 26, 1997
- Hail in Georgia, January 25, 1997
- Hail in Georgia, January 25, 1997
More
Every storm in Pennsylvania in 1997Every state in 1997This day in weather historyWarnings in Pennsylvania, January 1997
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: 5588323.