Heavy Snow in Pennsylvania, March 9, 1999

Name: Heavy Snow in Pennsylvania, March 9, 1999
Start: 1999-03-09T16:00
End: 1999-03-09T23:00
Location: Pennsylvania

March 9, 1999 · NWS CTP · 1 event in 1 county or zone

1 heavy snow, 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 heavy snow. Local standard time, as filed.

Heavy Snow, Somerset

When: March 9, 4:00 PM EST to 11:00 PM EST
Where: Somerset forecast zone
Reported by: EMERGENCY MANAGER
Coordinates: 39.972, -79.028 (the zone’s center; the record gives no point)

Low pressure moved east across West Virginia producing snow across Pennsylvania late in the day Tuesday, March 9th. Across most of the state, accumulations were from 1 to 3 inches, with 3 to 5 inches across the central mountains of west central PA. Up to 8 inches were reported at Confluence and on Mt. Davis.

What these are

Heavy Snow: Snowfall reaching the local warning threshold without the other hazards of a winter storm.

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

The same day elsewhere

Every storm in Pennsylvania in 1999 Every state in 1999 This day in weather history Warnings in Pennsylvania, March 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: 5682658.