Pennsylvania, 1999

Winter Storm in Pennsylvania, January 13 to 15, 1999

January 13 to 15, 1999 · NWS PBZ · 15 events in 15 counties and zones

A powerful winter storm brought another combination of snow and freezing rain to all of western Pennsylvania. The precipitation remained mostly snow across the west central Pennsylvania counties of Mercer, Forest and Venango where between 10 and 12 inches of snow were reported.

Where it happened

Every event with a place to put it; 12 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
15

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.

A powerful winter storm brought another combination of snow and freezing rain to all of western Pennsylvania. The precipitation remained mostly snow across the west central Pennsylvania counties of Mercer, Forest and Venango where between 10 and 12 inches of snow were reported. Across southwest Pennsylvania the snow mixed with freezing rain and snowfall totals dropped off quickly as you moved from north to south. Clarion, Lawrence, Butler, Armstrong and Beaver counties all reported between 3 and 6 inches of accumulation, while the extreme southwest corner of Pennsylvania received mostly freezing rain. The freezing rain continued through the overnight hours of the 14th, with the majority of counties across western Pennsylvania reporting between 1/4 and 1/2 inch of ice accumulation.

The radar

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

Open the radar archive at this moment

Event by event

15 winter storm. Local standard time, as filed.

Winter Storm, Allegheny

When
January 13, 8:00 AM EST to January 15, 10:00 AM EST
Where
Allegheny forecast zone
Reported by
EMERGENCY MANAGER
Coordinates
40.469, -79.981 (the zone’s center; the record gives no point)

Winter Storm, Armstrong

When
January 13, 8:00 AM EST to January 15, 10:00 AM EST
Where
Armstrong forecast zone
Reported by
EMERGENCY MANAGER
Coordinates
40.812, -79.464 (the zone’s center; the record gives no point)

Winter Storm, Beaver

When
January 13, 8:00 AM EST to January 15, 10:00 AM EST
Where
Beaver forecast zone
Reported by
EMERGENCY MANAGER
Coordinates
40.682, -80.349 (the zone’s center; the record gives no point)

Winter Storm, Butler

When
January 13, 8:00 AM EST to January 15, 10:00 AM EST
Where
Butler forecast zone
Reported by
EMERGENCY MANAGER
Coordinates
40.912, -79.913 (the zone’s center; the record gives no point)

Winter Storm, Clarion

When
January 13, 8:00 AM EST to January 15, 10:00 AM EST
Where
Clarion forecast zone
Reported by
EMERGENCY MANAGER
Coordinates
41.192, -79.421 (the zone’s center; the record gives no point)

Winter Storm, Fayette

When
January 13, 8:00 AM EST to January 15, 10:00 AM EST
Where
Fayette forecast zone
Reported by
EMERGENCY MANAGER

Winter Storm, Forest

When
January 13, 8:00 AM EST to January 15, 10:00 AM EST
Where
Forest forecast zone
Reported by
EMERGENCY MANAGER
Coordinates
41.513, -79.236 (the zone’s center; the record gives no point)

Winter Storm, Greene

When
January 13, 8:00 AM EST to January 15, 10:00 AM EST
Where
Greene forecast zone
Reported by
EMERGENCY MANAGER
Coordinates
39.854, -80.223 (the zone’s center; the record gives no point)

Winter Storm, Indiana

When
January 13, 8:00 AM EST to January 15, 10:00 AM EST
Where
Indiana forecast zone
Reported by
EMERGENCY MANAGER

Winter Storm, Jefferson

When
January 13, 8:00 AM EST to January 15, 10:00 AM EST
Where
Jefferson forecast zone
Reported by
EMERGENCY MANAGER
Coordinates
41.128, -78.999 (the zone’s center; the record gives no point)

Winter Storm, Lawrence

When
January 13, 8:00 AM EST to January 15, 10:00 AM EST
Where
Lawrence forecast zone
Reported by
EMERGENCY MANAGER
Coordinates
40.991, -80.334 (the zone’s center; the record gives no point)

Winter Storm, Mercer

When
January 13, 8:00 AM EST to January 15, 10:00 AM EST
Where
Mercer forecast zone
Reported by
EMERGENCY MANAGER
Coordinates
41.302, -80.258 (the zone’s center; the record gives no point)

Winter Storm, Venango

When
January 13, 8:00 AM EST to January 15, 10:00 AM EST
Where
Venango forecast zone
Reported by
EMERGENCY MANAGER
Coordinates
41.401, -79.758 (the zone’s center; the record gives no point)

Winter Storm, Washington

When
January 13, 8:00 AM EST to January 15, 10:00 AM EST
Where
Washington forecast zone
Reported by
EMERGENCY MANAGER
Coordinates
40.189, -80.248 (the zone’s center; the record gives no point)

Winter Storm, Westmoreland

When
January 13, 8:00 AM EST to January 15, 10:00 AM EST
Where
Westmoreland forecast zone
Reported by
EMERGENCY MANAGER

What these are

Winter Storm
A storm that brought snow, sleet or freezing rain at warning levels, usually over several hours or days.

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 2026-10-01. Each event’s entry at NCEI: 5685885, 5685886, 5685887, 5685888, 5685889, 5685890, 5685891, 5685892, 5685893, 5685894, 5685895, 5685896, 5685897, 5685898, 5685899.