An isolated severe thunderstorm produced wind damage in northeast McKean County.
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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 wind damage in northeast McKean 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 Jun 28, 1:43 PM EST, 22 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE STATE COLLEGE PA 243 PM EDT MON JUN 28 2010 .SYNOPSIS... A COLD FRONT WILL PUSH THROUGH THIS EVENING...ACCOMPANIED BY SHOWERS AND THUNDERSTORMS. DRIER AND COOLER AIR WILL MOVE DOWN FROM THE NORTH ON TUESDAY...AS HIGH PRESSURE BUILDS IN FROM THE UPPER GREAT LAKES. THE REST OF THE WEEK LOOKS DRY...WITH TEMPERATURES WARMING UP BY THE HOLIDAY WEEKEND. && .NEAR TERM /UNTIL 11 PM THIS EVENING/... SHOWERS ALL OVER THE SCOPE ATTM...WITH NOTHING CLIMBING ABOVE 20KFT. ALL CORES LOWER THAN THE 0C LEVEL. DESPITE HIGH PWATS AND CAPES ANALYZED IN THE MESO ANALYSIS FOR THE LWR SUSQ...A PRE- FRONTAL TROF IS TAKING AWAY MUCH OF THE MSTR AS TSTMS HAVE FORMED OVER VA/MD. MORE SUNSHINE IS BREAKING THROUGH OVER THE SRM MTS KEEPING THE POSSIBILITY OF RE-DEVELOPMENT THERE UNTIL EARLY EVENING. SVR WW 426 IN EFFECT UNTIL 8 PM...BUT WILL LIKELY BE TRIMMED AWAY BEFORE THEN. WITH SUCH LOW TOPS TO THE SHOWERS...WILL JUST MENTION SHRA WITH CHC TSRA IN THE CENTRAL AND NORTH THIS EVENING AND TSTMS IN THE SE. MOST IF NOT ALL SHRA SHOULD HAVE DISSIPATED BY 10 OR 11 PM. && .SHORT TERM /11 PM THIS EVENING THROUGH 6 PM TUESDAY/... SLOW-MOVING ANTICYCLONE WHICH WILL CONTROL OUR WX THRU THE NEXT WEEK WILL MOVE DOWN FROM THE NORTHWEST TONIGHT. THE DEWPOINTS WILL DROP INTO THE M50S IN THE N BY SUNRISE TUE. A SECONDARY TROF/FRONT COULD TOUCH OFF A FEW SHRA TONIGHT OF EARLY TUE MORNING...BUT LIMITED MSTR WILL KEEP POPS UNDER 40 PCT IN THE N AND ONLY 20S IN THE WRN MTS. CLOUDS WILL BE THE TOUGH PART OF THIS FCST...WITH 925MB MSTR REMAINING HIGH ACROSS THE MTS - ESP IN THE NE THROUGH TUE MORNING. WILL FOLLOW THE NAM PROGS FOR MSTR AND PAINT MO CLDY SKIES IN THE NE THRU THEN...WITH MIXING BURNING AWAY EVERYTHING DURING THE DAYLIGHT HRS. MINS TONIGHT WILL GET CLOSE TO THE DEWPOINTS IN MOST PLACES BUT IT WILL BE A RACE. WITH A FEW KTS OF WIND AND SOME CLOUD COVER EXPECTED...WILL JUST MAKE A MENTION OF FOG IN THE NRN VALLEYS. 8H TEMPS DROP TO 6C IN THE N AND 12C IN THE S. WITH LOTS OF SUNSHINE...THIS SHOULD RESULT IN MAXES IN THE M80S IN THE SE...BUT ONLY IN THE L70S IN THE N. && .LONG TERM /TUESDAY NIGHT THROUGH MONDAY/... THE WEATHER WILL BE QUIET THROUGH MUCH OF THE EXTENDED FORECAST. STILL COULD BE A WARM AFTERNOON ACROSS SOUTHERN THIRD...WHERE TEMPS WILL REACH THE 80S AND HIGHER DEWPOINTS WILL LINGER THE LONGEST. STRONG SURFACE HIGH BUILDS IN ACROSS THE GLAKES WED THROUGH SAT...KEEPING NOT ONLY PRECIP CHANCES LOW...BUT SKIES MOSTLY CLOUD FREE...DAYTIME TEMPS JUST A SHADE BELOW NORMAL...AND NIGHTTIME LOWS IN THE MID 40S TO MID 50S. TROUGH LINGERS OVER S CANADA/NEW ENGLAND WED AND THU...AND SHORTWAVES ROTATING THROUGH WILL BRUSH OUR NORTHERN BORDER...SO DID ADD JUST A SLIGHT CHANCE FOR A DAYTIME SHOWER/TSTORM THERE. RETURN FLOW KICKS IN STARTING SAT WITH TEMPS AND HUMIDITY SLOWLY INCREASING AT THAT TIME. THIS WILL INTRODUCE A CHANCE FOR SUMMERTIME CONVECTION AGAIN BY LATE WEEKEND. && .AVIATION /18Z MONDAY THROUGH SATURDAY/... GENERALLY BORDERLINE MVFR/VFR CONDITIONS ACROSS THE REGION AS OF 18Z ISSUANCE...WITH MVFR CIGS IN PLACE ACROSS LAURELS AND INTO THE NORTHERN TIER. SHRA BECOMING MORE WIDESPREAD AND HEADING EASTWARD...EXPECT TSRA TO BEGIN DEVELOPING IN THE NEXT FEW HOURS...ESPECIALLY ACROSS THE LOWER SUSQ WHERE CLEAR SKIES PREVAILED EARLIER. HENCE USED TEMPO GROUP TO SHOW POTENTIAL DROP TO MVFR/IFR IN SHRA/TSRA AS THE AFTERNOON WEARS ON. ALSO...THERE IS THE POTENTIAL FOR THE DEVELOPMENT OF IFR/MVFR CIGS AND VIS OVERNIGHT...ESPECIALLY FOR NORTHERN AND WESTERN AIRFIELDS WITH THE INTRUSION OF COOLER...DRIER AIR BEHIND COLD FRONTAL PASSAGES THIS EVENING AND EARLY TUESDAY...IT LOOKS LIKE WE ARE IN FOR A STRETCH OF NICE WX. EXPECT GENERALLY VFR FLYING CONDITIONS WEDNESDAY THRU SATURDAY...ASIDE FROM SOME LATE NIGHT/EARLY MORNING VALLEY FOG. OUTLOOK... WED-SAT...AM FOG PSBL IN VALLEYS...OTHERWISE VFR. && .CTP WATCHES/WARNINGS/ADVISORIES... NONE. && SYNOPSIS...DANGELO/LAMBERT NEAR TERM...DANGELO SHORT TERM...DANGELO LONG TERM...DEVOIR/RXR AVIATION...DANGELO/DICKEY
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE STATE COLLEGE PA 128 PM EDT MON JUN 28 2010 PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-049>053- 291730- WARREN-MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD- NORTHERN CENTRE-SOUTHERN CENTRE-CAMBRIA-BLAIR-HUNTINGDON-MIFFLIN- JUNIATA-SOMERSET-BEDFORD-FULTON-FRANKLIN-TIOGA-NORTHERN LYCOMING- SULLIVAN-SOUTHERN CLINTON-SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR- NORTHUMBERLAND-COLUMBIA- 128 PM EDT MON JUN 28 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA. .DAY ONE...THIS AFTERNOON AND TONIGHT. THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED. PAZ056>059-063>066-291730- PERRY-DAUPHIN-SCHUYLKILL-LEBANON-CUMBERLAND-ADAMS-YORK-LANCASTER- 128 PM EDT MON JUN 28 2010 ...SEVERE THUNDERSTORM WATCH 426 IN EFFECT UNTIL 8 PM EDT THIS EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA. .DAY ONE...THIS AFTERNOON AND TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV/STATECOLLEGE ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. SEVERE THUNDERSTORM WATCH. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
The Buffalo radar (KBUF), 112 km away, was scanning. The volume nearest the first event began at 19:05 UTC.
1 thunderstorm wind. Local standard time, as filed.
Thunderstorm winds estimated near 60 mph knocked down a swath of trees approximately 1 mile west of Duke Center along Route 346.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Pennsylvania in 2010Every state in 2010This day in weather historyWarnings in Pennsylvania, June 2010
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: 228844.