Pennsylvania, 1999

Flash Flood in Pennsylvania, January 9, 1999

January 9, 1999 · NWS PHI · 1 event in 1 county or zone

The combination of ice jams on the streams, snow and ice melt and showers with heavy rain caused some small stream flooding in northern areas of Berks County during the afternoon of the 9th. Two families were evacuated when an ice jam on the Mill Creek caused flooding in Maxatawny Township.

Where it happened

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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.

What happened

The episode as NWS PHI wrote it up.

The combination of ice jams on the streams, snow and ice melt and showers with heavy rain caused some small stream flooding in northern areas of Berks County during the afternoon of the 9th. Two families were evacuated when an ice jam on the Mill Creek caused flooding in Maxatawny Township. One house had waters up to its basement rafters. The Maiden Creek also flooded onto Pennsylvania State Route 662 along the Perry/Richmond Township line. Storm precipitation totals reached 2 inches in Virginville and 1.73 inches in Hamburg. No serious injuries were reported.

The radar

The Philadelphia radar (KDIX), 139 km away, was scanning. The volume nearest the first event began at 19:13 UTC.

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Event by event

1 flash flood. Local standard time, as filed.

Flash Flood, Berks

When
January 9, 2:15 PM EST to 6:00 PM EST
Where
Berks County, North Portion
Reported by
EMERGENCY MANAGER
Coordinates
40.416, -75.926 (the zone’s center; the record gives no point)

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.

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

The same day elsewhere

More

Every storm in Pennsylvania in 1999Every state in 1999This day in weather historyWarnings in Pennsylvania, January 1999

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: 5685188.