An isolated severe thunderstorm produced localized wind damage during the early evening in Franklin County.
Every event with a place to put it. Tap one for its entry below.
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 episode as NWS CTP wrote it up.
An isolated severe thunderstorm produced localized wind damage during the early evening in Franklin County.
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 State College, PA wrote its last area forecast discussion before the first event at Jul 3, 4:22 PM EST, 1 hour earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE STATE COLLEGE PA 522 PM EDT TUE JUL 3 2012 .SYNOPSIS... A WARM FRONT MOVING THROUGH WESTERN PENNSYLVANIA WILL PUSH NORTH AND EAST ACROSS THE REST OF THE KEYSTONE STATE TONIGHT. A WEAK COLD FRONT WILL DROP SOUTHWARD FROM THE LOWER GREAT LAKES INTO CENTRAL PENNSYLVANIA ON THE 4TH. HIGH PRESSURE SHOULD BRING FAIR BUT CONTINUED HOT WEATHER TO THE AREA FOR THURSDAY AND FRIDAY. A COLD FRONT WILL CROSS THE AREA SOMETIME OVER THE WEEKEND. && .NEAR TERM /UNTIL MIDNIGHT TONIGHT/... EARLIER MCC HAS FRACTURED INTO MANY PARTS...AND DISCRETE CELLS NOW STARTING TO POP UP IN ADVANCE OF THE OLDER CLUSTERS. STABILITY IS DROPPING OVER THE BULK OF C PA...AND FURTHER DEVELOPMENT IS EXPECTED TO CONTINUE. SHEAR IS MODERATE BUT NOT STRONG. THEREFORE SOME STRONGER CELLS ARE LIKELY - ESP IN THE VCNTY OF THE WARM FRONT WHICH IS CURRENTLY MOVING INTO OUR WRN COS PER DEWPOINTS AND MORE-SWRLY/BACKING SFC WIND. BASED ON LATEST RUC/HRRR/NAM...WILL NUDGE POPS UP IN AREAS WHERE THERE IS HIGH CONFIDENCE OF THESE CLUSTERS MOVING THROUGH. THE MAIN SHORT WAVE DRIVING THE EVENING STORMS WILL PUSH THROUGH INTO THE SRN TIER COS BY MIDNIGHT. && .SHORT TERM /MIDNIGHT THROUGH 6 PM WEDNESDAY/... THE NEXT UPPER TROUGH ALREADY MOVING INTO LWR ONTARIO COULD RE- FIRE STORMS IN THE NW LATER THIS EVENING. SO...CHC POPS STILL BE IN ORDER TO LINGER FOR THE FIRST PART OF THE NIGHT IN THE N AND MOST/ALL OF THE NIGHT IN THE SOUTH. DRIER AIR WILL MOVE DOWN FROM THE N LATE TONIGHT AND EARLY IN THE MORNING. THE MSTR FROM PREV RAIN WILL MOST LIKELY MAKE SOME FOG IN THE MORNING...BUT LOW CLOUDS NOT LIKELY - EXCEPT IN THE NRN TIER WHERE IT IS MORE- POSSIBLE. SFC TROUGH/COLD FRONTAL LOCATION WILL BE DIFFICULT TO PINPOINT WED AM...BUT MOST LIKELY WILL BE OVER THE AREA SOMEWHERE IN A ROUGHLY W-E LINE. THIS TROUGH COULD BE THE FOCUS/LIFT FOR MORE STORMS...BUT COVERAGE OF STORMS SHOULD BE VERY LIMITED AND WORTH ONLY A 20-30 POP FOR THE AFTN. BY EVENING AND FIREWORKS TIME...THE FLOW ALOFT IS MUCH MORE NORTHERLY AND SHOULD PUSH ANY SHOWERS OFF TO THE SOUTH OF C PA BY DINNER TIME. && .LONG TERM /WEDNESDAY NIGHT THROUGH TUESDAY/... BY WED EVE...FLOW ALOFT BECOMES MORE NORTHERLY AND SHOULD PUSH TROUGH BOUNDARY AND ANY LINGERING ISOLD/SCT TSTMS OFF TO THE SOUTH. KEPT MENTION OF 20 POPS ACROSS SOUTHERN TIER EARLY WED EVE. BY THU...RIDGE FLATTENS AND BEGINS TO EXTEND FURTHER EASTWARD INTO CENTRAL PA. THOUGH AN ISOLATED LATE AFTERNOON/EVE TSTM WILL BE POSS OFF THE HIGHER TERRAIN IN THE SW...WARMING TEMPS ALOFT SHOULD KEEP THESE TO A MINIMUM. WITH PLENTY OF SUNSHINE...TEMPS WILL RISE INTO THE MID 80S TO MID 90S. MORE HOT WEATHER IN STORE FOR FRI AND SAT...WITH READINGS 10-15F ABOVE NORMAL /AND HEAT INDICES APPROACHING 100F IN THE SE/. HEAT HEADLINES MAY BE A POSSIBILITY IF DEWPOINTS INCH CLOSER TO 70F...BUT DEEPEST LOW LEVEL MOISTURE WILL REMAIN OFF TO OUR WEST. NIGHTS WILL CONTINUE TO BE QUITE MUGGY AND WARM ACROSS THE SOUTH. OVER THE WEEKEND...HIGH PRESSURE RIDGE RETROGRADES WESTWARD INTO THE PLAINS...ALLOWING MID LEVEL TROUGH TO SLOWLY SAG OVER THE REGION LATE SATURDAY INTO SUNDAY. THIS WILL PUSH A COOL FRONT THROUGH THE REGION FROM THE NORTH...WHICH WILL BRING RENEWED CHANCES FOR TSTMS INITIALLY ACROSS THE NORTH LATE SATURDAY...AND THEN ACROSS PA EARLY SUNDAY. DRY COOLER AIR BEHIND THE FRONT WILL GRADUALLY WORK IN FROM LATE WEEKEND THROUGH EARLY NEXT WEEK...BRINGING RELIEF FROM THE SUMMERTIME HEAT...DROPPING TEMPS BACK TOWARD SEASONAL NORMALS FOR NEXT WEEK. && .AVIATION /21Z TUESDAY THROUGH SUNDAY/... THE LINE OF CONVECTION CONTINUES TO RACE SE ACROSS THE FCST AREA. TERMINALS IN THE PATH OF THE STORMS HAVE GENERALLY SEEN VIZ DROP DOWN TO AROUND A MILE WITH 30-40 MPH WIND GUSTS. THE LINE SHUD BE CLEAR OF THE REGION BY 00Z...BUT MORE CONVECTION FIRING OVER THE LOWER LAKES WILL KEEP THUNDER A THREAT WELL INTO THE EVENING HOURS. LATER TONIGHT...LOW CLOUDS ARE POSSIBLE IN KBFD BUT MOST LOCATIONS WILL JUST SEE SOME MVFR FOG WITH RESIDUAL MSTR FROM RAIN. CLEARING LIKELY IN MANY SPOTS WITH DRIER FLOW ALOFT. WINDS REMAIN SWRLY BUT GO VERY LIGHT OVERNIGHT. STORMS SHOULD REGENERATE IN THE AFTERNOON TOMORROW AS THE AIRMASS WILL BE VIRTUALLY THE SAME AS TODAY...EVEN MORE MUGGY. SHORT RANGE MODELS SUGGEST ACTIVITY MOVES THROUGH BY 00Z...POSSIBLY LEAVING 4TH OF JULY FIREWORKS UNTOUCHED BY INCLEMENT WEATHER. OUTLOOK... THU...AM FOG POSS W MTNS. OTHERWISE VFR. FRI...VFR. SAT-SUN...SCT PM TSRA IMPACTS POSSIBLE. && .CTP WATCHES/WARNINGS/ADVISORIES... NONE. && SYNOPSIS...DANGELO/STEINBUGL NEAR TERM...DANGELO SHORT TERM...DANGELO LONG TERM...RXR AVIATION...LA CORTE
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE STATE COLLEGE PA 1225 PM EDT TUE JUL 3 2012 PAZ004>006-010-011-017-024-041630- WARREN-MCKEAN-POTTER-ELK-CAMERON-CLEARFIELD-CAMBRIA- 1225 PM EDT TUE JUL 3 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA. .DAY ONE...THIS AFTERNOON AND TONIGHT. THERE IS A SLIGHT RISK OF SEVERE WEATHER THIS AFTERNOON INTO THE NIGHT. THE GREATEST THREAT WILL BE DAMAGING WIND GUSTS. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. A FEW STRONG TO LOCALLY SEVERE THUNDERSTORMS ARE POSSIBLE DURING THE AFTERNOON AND EVENING ON THE 4TH OF JULY. THE PRIMARY HAZARD WOULD BE DAMAGING WINDS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. PAZ012-018-019-025>028-033>035-037-041-042-045-053-058-041630- NORTHERN CLINTON-NORTHERN CENTRE-SOUTHERN CENTRE-BLAIR-HUNTINGDON- MIFFLIN-JUNIATA-SOMERSET-BEDFORD-FULTON-TIOGA-NORTHERN LYCOMING- SULLIVAN-SOUTHERN CLINTON-COLUMBIA-SCHUYLKILL- 1225 PM EDT TUE JUL 3 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA. .DAY ONE...THIS AFTERNOON AND TONIGHT. STRONG TO POSSIBLY SEVERE THUNDERSTORMS ARE POSSIBLE TONIGHT. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. A FEW STRONG TO LOCALLY SEVERE THUNDERSTORMS ARE POSSIBLE DURING THE AFTERNOON AND EVENING ON THE 4TH OF JULY. THE PRIMARY HAZARD WOULD BE DAMAGING WINDS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. PAZ036-046-049>052-056-057-059-063>066-041630- FRANKLIN-SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR-NORTHUMBERLAND-PERRY- DAUPHIN-LEBANON-CUMBERLAND-ADAMS-YORK-LANCASTER- 1225 PM EDT TUE JUL 3 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA. .DAY ONE...THIS AFTERNOON AND TONIGHT. THE PROBABILITY OF WIDESPREAD HAZARDOUS WEATHER IS LOW. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. A FEW STRONG TO LOCALLY SEVERE THUNDERSTORMS ARE POSSIBLE DURING THE AFTERNOON AND EVENING ON THE 4TH OF JULY. THE PRIMARY HAZARD WOULD BE DAMAGING WINDS. IN ADDITION...HEAT INDEX VALUES MAY APPROACH 100 DEGREES FROM WEDNESDAY THROUGH SATURDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. DANGELO
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
323 PM EDT TUE JUL 3 2012
PAZ024-033-032015-
CAMBRIA PA-SOMERSET PA-
323 PM EDT TUE JUL 3 2012
...STRONG THUNDERSTORMS WILL AFFECT CAMBRIA AND NORTH CENTRAL
SOMERSET COUNTIES...
AT 316 PM EDT...A CLUSTER OF STRONG THUNDERSTORMS WAS LOCATED FROM 6
MILES NORTHWEST OF BELSANO TO ARMAGH TO BOLIVAR...MOVING EAST AT 20
MPH.
WIND GUSTS TO 30 MPH AND PEA SIZE HAIL ARE POSSIBLE WITH THESE
STORMS. THESE STORMS WILL AFFECT VINTONDALE...CARROLLTOWN...SOUTH
FORK...LORETTO AND WINDBER.
THIS WILL IMPACT THE FOLLOWING MAJOR ROADS...THE JOHNSTOWN
EXPRESSWAY...ROUTE 22...ROUTE 219...ROUTE 422...STATE ROAD 56.
LAT...LON 4038 7899 4065 7884 4058 7854 4036 7870
4017 7889 4023 7911
FORECASTER: DEVOIRSPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE STATE COLLEGE PA 429 PM EDT TUE JUL 3 2012 PAZ034-032115- BEDFORD PA- 429 PM EDT TUE JUL 3 2012 ...A STRONG THUNDERSTORM WILL AFFECT CENTRAL BEDFORD COUNTY... AT 427 PM EDT...A STRONG THUNDERSTORM WAS NEAR OGLETOWN...MOVING SOUTHEAST AT 30 MPH. WIND GUSTS TO 40 MPH ARE POSSIBLE WITH THIS STORM. THIS STORM WILL AFFECT NEW PARIS...CESSNA...BEDFORD AND EVERETT. THIS WILL IMPACT THE FOLLOWING CENTRAL PENNSYLVANIA INTERSTATES...THE PENNSYLVANIA TURNPIKE BETWEEN MILE MARKERS 137 AND 157...I-99 BETWEEN MILE MARKERS 0 AND 5. THIS WILL ALSO IMPACT THE FOLLOWING MAJOR ROADS...ROUTE 30...ROUTE 220. LAT...LON 4009 7873 4020 7868 4004 7828 3984 7847 FORECASTER: DEVOIR
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
433 PM EDT TUE JUL 3 2012
PAZ033-034-032130-
BEDFORD PA-SOMERSET PA-
433 PM EDT TUE JUL 3 2012
...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN SOMERSET AND
SOUTHWESTERN BEDFORD COUNTIES...
AT 431 PM EDT...A STRONG THUNDERSTORM WAS NEAR SOMERSET...MOVING
SOUTHEAST AT 15 MPH.
WIND GUSTS TO 40 MPH ARE POSSIBLE WITH THIS STORM. THIS STORM WILL
AFFECT BERLIN AND HYNDMAN.
THIS WILL IMPACT THE PENNSYLVANIA TURNPIKE BETWEEN MILE MARKERS 112
AND 121.
THIS WILL ALSO IMPACT ROUTE 219.
LAT...LON 3999 7907 4002 7904 3988 7863 3971 7880
3972 7882
FORECASTER: DEVOIRSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
522 PM EDT TUE JUL 3 2012
PAZ034>036-032215-
BEDFORD PA-FRANKLIN PA-FULTON PA-
522 PM EDT TUE JUL 3 2012
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT FULTON...NORTHERN
FRANKLIN AND SOUTHERN BEDFORD COUNTIES...
AT 518 PM EDT...A LINE OF STRONG THUNDERSTORMS WAS LOCATED FROM
WATERFALL TO RAINSBURG...MOVING EAST AT 30 MPH.
WIND GUSTS TO 40 MPH ARE POSSIBLE WITH THESE STORMS. THESE STORMS
WILL AFFECT FORT LITTLETON...FANNETTSBURG...NEEDMORE AND UPPER
STRASBURG.
THIS WILL IMPACT THE FOLLOWING CENTRAL PENNSYLVANIA INTERSTATES...THE
PENNSYLVANIA TURNPIKE BETWEEN MILE MARKERS 152 AND 184...I-70 BETWEEN
MILE MARKERS 147 AND 166...I-81 BETWEEN MILE MARKERS 22 AND 23.
THIS WILL ALSO IMPACT THE FOLLOWING MAJOR ROADS...ROUTE 11...ROUTE
30...ROUTE 220...ROUTE 522.
LAT...LON 3991 7870 4013 7805 4010 7792 4006 7786
4009 7784 4000 7752 3977 7819
FORECASTER: DEVOIRThe Sterling radar (KLWX), 93 km away, was scanning. The volume nearest the first event began at 22:22 UTC.
1 thunderstorm wind. Local standard time, as filed.
Thunderstorm winds estimated near 60 mph knocked down trees and utility wires in Greencastle.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Pennsylvania in 2012Every state in 2012This day in weather historyWarnings in Pennsylvania, July 2012
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: 381159.