Pennsylvania, 1999

Heavy Rain in Pennsylvania, March 21 to 22, 1999

March 21 to 22, 1999 · NWS PHI · 2 events in 2 counties and zones

Heavy rain affected the Schuylkill and Lehigh Valleys from the late afternoon of the 21st into the early morning of the 22nd. Some poor drainage and roadway flooding was reported, but no serious flooding or damage was reported.

Where it happened

Every event with a place to put it; 2 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
2

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.

Heavy rain affected the Schuylkill and Lehigh Valleys from the late afternoon of the 21st into the early morning of the 22nd. Some poor drainage and roadway flooding was reported, but no serious flooding or damage was reported. Farther east and south in Pennsylvania, heavier rain did cause some creek and stream flooding. Storm totals included 1.65 inches in Morgantown, 1.58 inches in Hamburg, 1.44 inches at both the Lehigh Valley International Airport and the Blue Marsh Dam (Berks County) and 1.38 inches in Reading. The low pressure system responsible for the heavy rain moved northeast from Atlanta, Georgia the morning of the 21st to Albany, New York the morning of the 22nd.

The radar

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

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Event by event

2 heavy rain. Local standard time, as filed.

Heavy Rain, Berks

When
March 21, 2:00 PM EST to March 22, 12:00 AM EST
Where
Berks County, Countywide
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
40.416, -75.926 (the zone’s center; the record gives no point)

Heavy Rain, Lehigh

When
March 21, 3:00 PM EST to March 22, 3:00 AM EST
Where
Lehigh County, Countywide
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
40.613, -75.592 (the zone’s center; the record gives no point)

What these are

Heavy Rain
Rainfall totals unusual for the place and season that did not produce a flood.

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, 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: 5692103, 5692104.