Pennsylvania, 2025Dense Fog in Pennsylvania, September 24, 2025
September 24, 2025 · NWS PHI · 10 events in 10 counties and zones
A moist air mass near a stationary front resulted in areas of dense fog before dawn on September 24th. The fog dissipated shortly after sunrise.
Every event with a place to put it; 10 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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- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 10
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.
A moist air mass near a stationary front resulted in areas of dense fog before dawn on September 24th. The fog dissipated shortly after sunrise.
Dense Fog, Berks
- When
- September 24, 12:00 AM EST to 9:00 AM EST
- Where
- Berks forecast zone
- Reported by
- ASOS
- Coordinates
- 40.416, -75.926 (the zone’s center; the record gives no point)
Dense fog was reported for several hours at Reading Regional Airport.
Dense Fog, Carbon
- When
- September 24, 12:00 AM EST to 9:00 AM EST
- Where
- Carbon forecast zone
- Reported by
- AWOS
- Coordinates
- 40.918, -75.709 (the zone’s center; the record gives no point)
Dense fog was reported for several hours at Jake Arner Airport.
Dense Fog, Eastern Montgomery
- When
- September 24, 12:00 AM EST to 9:00 AM EST
- Where
- Eastern Montgomery forecast zone
- Reported by
- AWOS
- Coordinates
- 40.211, -75.367 (the zone’s center; the record gives no point)
Dense fog was reported for several hours at Wings Field.
Dense Fog, Lehigh
- When
- September 24, 12:00 AM EST to 9:00 AM EST
- Where
- Lehigh forecast zone
- Reported by
- AWOS
- Coordinates
- 40.613, -75.592 (the zone’s center; the record gives no point)
Dense fog was reported for several hours at Queen City Airport.
Dense Fog, Lower Bucks
- When
- September 24, 12:00 AM EST to 9:00 AM EST
- Where
- Lower Bucks forecast zone
- Reported by
- ASOS
- Coordinates
- 40.337, -75.107 (the zone’s center; the record gives no point)
Dense fog was reported for several hours at Trenton-Mercer Airport, Pennridge Airport, Wings Field and Northeast Philadelphia Airport.
Dense Fog, Northampton
- When
- September 24, 12:00 AM EST to 9:00 AM EST
- Where
- Northampton forecast zone
- Reported by
- ASOS
- Coordinates
- 40.754, -75.307 (the zone’s center; the record gives no point)
Dense fog was reported for several hours at Lehigh Valley International Airport.
Dense Fog, Philadelphia
- When
- September 24, 12:00 AM EST to 9:00 AM EST
- Where
- Philadelphia forecast zone
- Reported by
- ASOS
- Coordinates
- 40.008, -75.134 (the zone’s center; the record gives no point)
Dense fog was reported for several hours at Northeast Philadelphia Airport.
Dense Fog, Upper Bucks
- When
- September 24, 12:00 AM EST to 9:00 AM EST
- Where
- Upper Bucks forecast zone
- Reported by
- AWOS
- Coordinates
- 40.337, -75.107 (the zone’s center; the record gives no point)
Dense fog was reported for several hours at Quakertown Airport and Pennridge Airport.
Dense Fog, Western Chester
- When
- September 24, 12:00 AM EST to 9:00 AM EST
- Where
- Western Chester forecast zone
- Reported by
- AWOS
- Coordinates
- 39.973, -75.748 (the zone’s center; the record gives no point)
Dense fog was reported for several hours at Chester County Airport.
Dense Fog, Western Montgomery
- When
- September 24, 12:00 AM EST to 9:00 AM EST
- Where
- Western Montgomery forecast zone
- Reported by
- ASOS
- Coordinates
- 40.211, -75.367 (the zone’s center; the record gives no point)
Dense fog was reported for several hours at Heritage Field.
- Dense Fog
- Fog reducing visibility to a quarter mile or less, filed where it caused accidents or disruption.
After NWS Directive 10-1605, the rules offices file Storm Data by.
- Flash Flooding and Debris Flows in Puerto Rico, September 24 to 27, 20251 death · 1 injured · $36,000 · 17 events
- Tornado and Flash Flooding in Louisiana, September 24, 2025$405,000 · EF1 · 13 events
- Flash Flooding and Heavy Rain in Texas, September 24 to 25, 202527 events
- Flash Flood and Flood in Kentucky, September 24, 2025$25,000 · 2 events
- Flash Flooding and Hail in Arkansas, September 24, 20251.75 in hail · 11 events
- Dense Fog in New Jersey, September 24, 20254 events
- Marine Thunderstorm Winds in Gulf of Mexico, September 24 to 25, 20254 events
- Damaging Winds in California, September 24, 2025$4,000 · 3 events
- Flash Flooding in West Virginia, September 24, 20253 events
- Damaging Winds in Virginia, September 24, 2025$7,000 · 50 kt wind · 3 events
- Flood and Damaging Winds in Alabama, September 24, 2025$4,000 · 52 kt wind · 3 events
- Hail in Missouri, September 24, 20251 in hail · 2 events
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: 1294033, 1294034, 1294035, 1294036, 1294037, 1294038, 1294039, 1294040, 1294041, 1294042.