Thunderstorm Wind, Lehigh
- When
- June 20, 4:15 PM EST to 4:30 PM EST
- Where
- Lehigh County, Fogelsville
- Measured
- 50 kt (58 mph)
- Reported by
- EMERGENCY MANAGER
- Coordinates
- 40.583, -75.633
Damaging Wind in Pennsylvania, June 20, 2001
A couple of trees were knocked down by a severe thunderstorm in central Lehigh County.
Where it happened
Every event with a place to put it. 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
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.
A couple of trees were knocked down by a severe thunderstorm in central Lehigh County.
What forecasters said that day
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Philadelphia/Mount Holly wrote its last area forecast discussion before the first event at Jun 20, 3:00 PM EST, 1 hour 15 minutes earlier.
Area forecast discussion, Jun 20, 3:00 PM EST, 1 hour 15 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 400 PM EDT WED JUN 20 2001 RADAR MOSAIC PAINTING THUNDERSTORMS ACROSS HUDSON VALLEY WITH A MORE PRONOUNCED LINE EXTENDING FROM KBGM SOUTHWEST TO NEAR KHGR. WATCH BOXES ISSUED AND CURRENTLY COVERS OUR EASTERN PA ZONES. MAIN FRONT STILL TO NORTHWEST WITH ABOVE MENTIONED MOIST CONVECTION DEVELOPING IN WARM SECTOR. 12Z ETA BUFKIT DATA IMPRESSIVE THIS AFTERNOON DEPICTING LIS APPROACHING -7 AND CAPES EXCEEDING 2500 J/KG. COLD FRONT CONTINUES TO SAG SOUTHEAST THIS EVENING AND TONIGHT AS S/W RIDES ALONG IT TO THE NORTHEAST. EXPECTING MOIST CONVECTION TO WIND DOWN AFTER DARK AS S/W MOVES OUT OF OUR CWA...EVEN THOUGH FRONT GETS HUNG UP. FRONT APPEARS TO REVERSE ITSELF TOMORROW AS S/W AND ASSOCIATED SURFACE FEATURE WORKS ACROSS THE OHIO VALLEY...BEFORE WORKING EAST ONE MORE TIME THURSDAY NIGHT AND FRIDAY. WILL CONFINE SHOWER AND THUNDERSTORM MENTION TO TOMORROW AFTERNOON AND EVENING AS CAPES INCREASE ABOVE THE 2000 J/KG LEVEL ONCE AGAIN IN THE HEAT OF THE DAY. WITH COLD FRONT UPON US FRIDAY...WILL BRING LIKELY/S TO THE COAST. AS FOR TEMPERATURES...DECIDED TO BLEND FWC/MAV NUMBERS. MAR: NO PBLMS. .PHI...SVR TSTM WATCH 456 FOR PA54-55-60>62 TIL 22Z. KRUZDLO
In the hours before
Special weather statement, Jun 20, 12:40 PM EST, 3 hours 35 minutes before
PAZ054-055-060>062-202200- SPECIAL WEATHER STATEMENT - SEVERE THUNDERSTORM WATCH 456 NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 140 PM EDT WED JUN 20 2001 ...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 6 PM EDT... THE STORM PREDICTION CENTER IN NORMAN OKLAHOMA HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR PORTIONS OF EASTERN PENNSYLVANIA UNTIL 6 PM THIS EVENING.THE FOLLOWING COUNTIES ARE INCLUDED IN THE WATCH... IN PENNSYLVANIA...CARBON...MONROE...BERKS...LEHIGH AND NORTHAMPTON. HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN AND NEAR TO THESE AREAS. REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR THE DEVELOPMENT OF THUNDERSTORMS WHICH CONTAIN DAMAGING WIND IN EXCESS OF 55 MPH AND HAIL 3/4 INCH OR GREATER IN DIAMETER IN AND CLOSE TO THE WATCH AREA. FREQUENT LIGHTNING AND VERY HEAVY RAIN MAY ALSO ACCOMPANY ANY THUNDERSTORMS. STAY TUNED TO NOAA WEATHER RADIO AND OTHER LOCAL MEDIA FOR FURTHER DETAILS OR UPDATES. FOR ADDITIONAL WEATHER INFORMATION...CHECK OUR WEB SITE AT WWW.NWS.NOAA.GOV/ER/PHI IN SMALL LETTERS. SKYWARN ACTIVATION IS REQUESTED. JWH
The radar
The Philadelphia radar (KDIX), 126 km away, was scanning. The volume nearest the first event began at 21:16 UTC.
Event by event
1 thunderstorm wind. Local standard time, as filed.
What these are
- Thunderstorm Wind
- Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Tornadoes and Hail in Colorado, June 20, 2001
- Flash Flood and Lightning Strike in Pennsylvania, June 20, 2001
- Tornadoes and Hail in North Dakota, June 20, 2001
- Hail in Colorado, June 20 to 21, 2001
- Damaging Winds and Lightning Strikes in Maryland, June 20, 2001
- High Wind in New York, June 20, 2001
- Hail and Damaging Winds in New York, June 20, 2001
- Hail and Damaging Winds in Ohio, June 20, 2001
- Damaging Wind in Pennsylvania, June 20, 2001
- Lightning Strikes in New York, June 20, 2001
- Flood and Lightning Strike in Kansas, June 20, 2001
- Hail and Damaging Winds in Kansas, June 20 to 21, 2001
More
Every storm in Pennsylvania in 2001Every state in 2001This day in weather historyWarnings in Pennsylvania, June 2001
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: 5253963.