A surface boundary resulted in a severe thunderstorm in northeast Pennsylvania.
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 BGM wrote it up.
A surface boundary resulted in a severe thunderstorm in northeast Pennsylvania.
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 Binghamton, NY wrote its last area forecast discussion before the first event at Aug 31, 1:58 PM EST, 1 hour earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BINGHAMTON NY 258 PM EDT SAT AUG 31 2013 .SYNOPSIS... MUGGY AND UNSETTLED WEATHER WILL CONTINUE THROUGH LABOR DAY, WITH AT LEAST SCATTERED SHOWERS AND THUNDERSTORMS EXPECTED ON A DAILY BASIS. A COLD FRONT SHOULD CROSS THE REGION MONDAY NIGHT WITH COOLER TEMPERATURES TO FOLLOW BY THE MIDDLE OF NEXT WEEK. && .NEAR TERM /UNTIL 6 AM SUNDAY MORNING/... 240 PM UPDATE... SFC LOW AND ASSOC BNDRY WILL HEAD THRU THE FA TONIGHT AS 1020MB SFC HIPRES NOSES SOUTH FM CANADA. AS THIS BNDRY MVS THRU THE AREA CONVECTION WL COME TO AN END FM NORTH TO SOUTH THRU THE OVRNGT HRS. BY 00Z EXPECT ISOLD SHRA/TSRA ACRS PORTIONS OF THE FINGER LKS TO LINGER ALONG BNDRY AS IT SLIDES OFF TO THE SOUTH. BY 06Z CAPES WL DIMINISH TO LV JUST ISOLD SHOWERS ACRS NW ZONES AND SLOWLY WANE THRU THE RMNDR OF THE NIGHTTIME HRS. AS FOR OVNGT MINS TEMPS WL NOT BE TOO MUCH DIFFERENT THAN PRVS NGTS. VRY LITTLE COOL OR DRY AIR IS EVIDENT BHND THIS BNDRY SO EXPECT TEMPS TO RANGE FM THE MID-UPR 60S. && .SHORT TERM /6 AM SUNDAY MORNING THROUGH TUESDAY/... 240 PM UPDATE... MODELS HV FLIPPED-FLOPPED REGARDING TOMORROW'S SOLN FOR PCPN POTENTIAL. SIGNIFICANT CAPPING WAS BEING INDICATED BY PRIOR MODEL RUNS WITH VRY LITTLE FRCG AND NOW IT APPEARS THAT S/WV CURRENTLY OVR NRN IL/IN WL PROVIDE SUBSTANTIAL FRCG DRG THE AFTN. UL TEMPS LOOK AS THO THEY WL BE WARM ENUF TO PROVIDE CAPPING ACROSS THE FAR NORTH THRU ABOUT 18Z AND AFTER THAT ALL BETS ARE OFF. THUS HV STARTED WITH CHC POPS ACRS NEPA BY MRNG AS WV APPCHS FM CNTRL PA AND WORK THEIR WAY NORTH THRU THE AFTN HRS. DEEP LYR SHEAR LOOKS TO BE PRETTY PUNY AT THIS TIME THUS NO ORGANIZED STORMS ARE EXPECTED. H5 TROF WL BE DIGGING IN SUN NGT AND WITH ANY SUBTLE WVS BEING FLUNG AT THE AREA IN STRONG MOISTURE ADVECTION ANYTHING CUD BE WRUNG OUT TOMORROW NGT. THUS WL KEEP 50-60 POPS FOR THUNDER. FRONTAL BNDRY WL APPCH DRG THE DAY MONDAY WITH POTENTIAL FOR STRONG-ISOLD SVR STORMS AT SOME POINT DRG THE AFTN. MAX TEMPS WL LKLY ONLY CLIMB INTO THE LWR 80S WITH SIGNIFICANT CLD CVR EXPECTED DRG THE DAY AND WITH DWPTS CLIMBING TO NEAR 70, EXPECT CAPES TO TOP OUT SOMEWHERE BTWN 1500 AND 2000 J/KG. 0-6KM DEEP LYR SHEAR WL CLIMB TO BTWN 35-40KTS JUST AHD OF FRONTAL BNDRY MVG THRU. FROPA WL OCCUR MON NGT BUT WITH H5 TROF HANGING BACK WL KEEP CHC SHOWERS IN FOR TUESDAY. && .LONG TERM /TUESDAY NIGHT THROUGH FRIDAY/... 250 PM UPDATE... A FEW SHOWERS MAY LINGER INTO TUESDAY EVENING AS AN UPPER LEVEL TROF MOVES THROUGH AND TO OUR EAST. BEYOND THAT A FAIRLY QUIET EXTENDED PERIOD. NEXT WEATHER SYSTEM WILL BE A COLD FRONT THURSDAY MORNING WITH A CHANCE FOR A FEW SHOWERS. THE BIG STORY THIS WEEK WILL NOT BE PRECIPITATION OR THUNDERSTORMS BUT THE COOLER AIR MASS. TEMPS WILL GENERALLY BE IN THE 70S WEDNESDAY...BUT MAY NOT GET OUT OF THE 60S THURSDAY AND FRIDAY. THIS SCENARIO IS GAINING IN CONFIDENCE WITH BOTH THE 12Z GFS AND 0Z EURO SHOWING 850S TEMPS AROUND +4C ON FRIDAY. JUST DAYS AGO BOTH MODELS SHOWED AS MUCH AS A 17 DEGREE DIFFERENCE IN TERMS OF OUTCOME. LOOK FOR MODERATING TEMPS NEXT WEEKEND AS HEIGHTS RISE. WHILE NO ORGANIZED AREAS OF PRECIP LOOK LIKELY DURING THIS PERIOD WE ONCE AGAIN LOOK TO REMAIN IN THE RING OF FIRE WITH THE NORTHWEST FLOW ALOFT...AROUND THE STRONG RIDGE OVER THE CENTRAL US. && .AVIATION /19Z SATURDAY THROUGH THURSDAY/... 18Z UPDATE... A BKN LINE OF SHOWERS WITH SOME ISOLATED THUNDER HAS DEVELOPED ACROSS CNY AT THE MOMENT. MOST OF THE CONVECTION WILL BE DONE BY 20Z NY TERMINALS AND TOWARD 22Z KAVP. WHILE BRIEF IFR VSBYS ARE POSSIBLE IF A STORM GOES RIGHT OVER THE TERMINAL...MORE LIKELY THREAT WILL BE SHORTER PERIODS OF MVFR CIGS/VSBYS IN AND NEAR STEADIER SHOWERS. OVERALL DURATION IS EXPECTED TO BE BRIEF. VFR EARLY TONIGHT THEN WIDESPREAD RESTRICTIONS ARE LIKELY ESPECIALLY NY TERMINALS AND TO A LESSER EXTENT AT KAVP. THE BOUNDARY CAUSING OUR AFTERNOON CONVECTION WILL SLIDE SOUTH INTO NORTHERN PA. MEANWHILE AN AREA OF LOWER CIGS AND VSBYS NOW OVER NORTHERN OHIO AND LAKE ERIE WILL MOVE OUR WAY IN A WEST-SOUTHWEST FLOW ALOFT. CONTINUED THE PREVIOUS FORECASTERS THINKING BUT SHOWED A BIT MORE CONFIDENCE THAT MVFR RESTRICTIONS ARE LIKELY ROUGHLY BETWEEN 05Z AND 16Z. WITH THAT SAID MOST MODEL GUIDANCE IS SHOWING IFR VSBYS AND/OR CIGS DURING THIS TIME AND SOME GUIDANCE IS QUITE LOW. CONFIDENCE IS NOT HIGH ENOUGH YET TO PUT THEM IN THE TAFS BUT IFR RESTRICTIONS REMAIN A DISTINCT POSSIBILITY ESPECIALLY THE ELEVATED TERMINALS. OUTLOOK... SUN-TUE...POTENTIAL FOR MVFR IN SCTD SHRA/TSRAS. WED-THUR...MAINLY VFR. && .BGM WATCHES/WARNINGS/ADVISORIES... PA...NONE. NY...NONE. && SYNOPSIS...PVN NEAR TERM...PVN SHORT TERM...PVN LONG TERM...HEDEN AVIATION...HEDEN
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BINGHAMTON NY 249 PM EDT SAT AUG 31 2013 NYZ045-046-055>057-062-PAZ038>040-043-044-047-048-072-011900- CHENANGO-OTSEGO-TIOGA-BROOME-DELAWARE-SULLIVAN-BRADFORD-SUSQUEHANNA- NORTHERN WAYNE-WYOMING-LACKAWANNA-LUZERNE-PIKE-SOUTHERN WAYNE- 249 PM EDT SAT AUG 31 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NEW YORK...SOUTHEASTERN NEW YORK AND NORTHEAST PENNSYLVANIA. .DAY ONE...THIS AFTERNOON AND TONIGHT. A LINE OF SHOWERS AND THUNDERSTORMS AHEAD OF A SURFACE TROUGH WILL SLIP THROUGH THE REGION THIS AFTERNOON THEN DIMINISH THIS EVENING. AN ISOLATED STORM MAY BECOME SEVERE WITH LARGE HAIL OR GUSTY WINDS EXPECTED. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. NYZ009-015>018-022>025-036-037-044-011900- NORTHERN ONEIDA-YATES-SENECA-SOUTHERN CAYUGA-ONONDAGA-STEUBEN- SCHUYLER-CHEMUNG-TOMPKINS-MADISON-SOUTHERN ONEIDA-CORTLAND- 249 PM EDT SAT AUG 31 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NEW YORK. .DAY ONE...THIS AFTERNOON AND TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. SCATTERED THUNDERSTORMS ARE ANTICIPATED AGAIN SUNDAY AFTERNOON AND EVENING. STORMS MAY BECOME MORE WIDESPREAD MONDAY...AHEAD OF AN APPROACHING COLD FRONT. HEAVY DOWNPOURS...GUSTY WINDS...AND SMALL HAIL COULD ACCOMPANY A FEW OF THE STORMS ON EACH DAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BINGHAMTON NY 143 PM EDT SAT AUG 31 2013 NYZ024-055-PAZ038-311830- BRADFORD PA-CHEMUNG NY-TIOGA NY- 143 PM EDT SAT AUG 31 2013 ...STRONG THUNDERSTORM WILL AFFECT NORTH CENTRAL BRADFORD... SOUTHEASTERN CHEMUNG AND SOUTHWESTERN TIOGA COUNTIES... * AT 141 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM CAPABLE OF PRODUCING SMALL HAIL...STRONG GUSTY WINDS...AND VERY HEAVY RAIN. THIS STORM WAS LOCATED NEAR LOCKWOOD...AND MOVING EAST AT 20 MPH. * THE STRONG THUNDERSTORM WILL BE NEAR... LOCKWOOD AND TWO RIVERS STATE PARK AT 155 PM EDT... SAYRE AT 200 PM EDT... LITCHFIELD AT 205 PM EDT... BARTON AT 210 PM EDT... LITCHFIELD AT 215 PM EDT... TIOGA CENTER AND NICHOLS AT 220 PM EDT... LOUNSBERRY AND CATATONK AT 225 PM EDT... THIS STORM HAS THE POTENTIAL TO BECOME SEVERE AND PRODUCE LARGE HAIL AND/OR DAMAGING WINDS. LAT...LON 4217 7627 4194 7631 4203 7676 4218 7673 HEDEN
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BINGHAMTON NY
153 PM EDT SAT AUG 31 2013
NYZ045-056-311830-
BROOME NY-CHENANGO NY-
153 PM EDT SAT AUG 31 2013
...STRONG THUNDERSTORM WILL AFFECT EXTREME SOUTHEASTERN CHENANGO AND
SOUTHEASTERN BROOME COUNTIES...
* AT 150 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL...STRONG GUSTY
WINDS TO 40 MPH...AND VERY HEAVY RAIN. THIS STORM WAS LOCATED NEAR
WINDSOR...AND MOVING EAST AT 20 MPH.
* THE STRONG THUNDERSTORM WILL BE NEAR...
WINDSOR AT 200 PM EDT...
EAST WINDSOR AT 205 PM EDT...
SANFORD AT 225 PM EDT...
DEPOSIT AT 230 PM EDT...
THIS STORM HAS THE POTENTIAL TO BECOME SEVERE AND PRODUCE LARGE HAIL
AND/OR DAMAGING WINDS.
LAT...LON 4200 7537 4201 7539 4201 7541 4204 7579
4215 7578 4222 7542 4204 7542 4202 7541
4200 7536
HEDENSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BINGHAMTON NY
231 PM EDT SAT AUG 31 2013
NYZ045-046-057-311930-
CHENANGO NY-DELAWARE NY-OTSEGO NY-
231 PM EDT SAT AUG 31 2013
...LINE OF STRONG THUNDERSTORMS WILL AFFECT EAST CENTRAL CHENANGO...
NORTH CENTRAL DELAWARE AND SOUTHERN OTSEGO COUNTIES...
* AT 223 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF STRONG THUNDERSTORMS CAPABLE OF PRODUCING SMALL HAIL...
STRONG GUSTY WINDS...AND VERY HEAVY RAIN. THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM LAURENS TO 6 MILES NORTH OF
OTEGO TO MT UPTON...AND MOVING EAST AT 20 MPH.
* STRONG THUNDERSTORMS WILL BE NEAR...
MILFORD AT 240 PM EDT...
WEST END AND WELLS BRIDGE AT 245 PM EDT...
ONEONTA AT 250 PM EDT...
ELK CREEK AND ROBERT V. RIDDELL STATE PARK AT 255 PM EDT...
SCHENEVUS AT 300 PM EDT...
NORTH FRANKLIN AT 305 PM EDT...
WORCESTER AND FERGUSONVILLE AT 310 PM EDT...
DAVENPORT CENTER AND DAVENPORT AT 315 PM EDT...
THESE STORMS HAVE THE POTENTIAL TO BECOME SEVERE AND PRODUCE LARGE
HAIL AND/OR DAMAGING WINDS.
THESE STORMS HAVE THE POTENTIAL TO PRODUCE VERY HEAVY RAIN...AND
COULD CAUSE LOCALIZED FLOODING OF ROADS AND POOR DRAINAGE AREAS.
LAT...LON 4230 7487 4236 7558 4248 7529 4262 7505
4261 7464 4260 7464 4252 7470 4245 7463
4243 7463
TACSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BINGHAMTON NY
241 PM EDT SAT AUG 31 2013
NYZ045-056-PAZ038-039-311930-
BRADFORD PA-BROOME NY-CHENANGO NY-SUSQUEHANNA PA-
241 PM EDT SAT AUG 31 2013
...LINE OF STRONG THUNDERSTORMS WILL AFFECT EXTREME SOUTHEASTERN
CHENANGO...NORTHEASTERN BRADFORD...NORTHWESTERN SUSQUEHANNA AND
SOUTHERN BROOME COUNTIES...
* AT 232 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF STRONG THUNDERSTORMS CAPABLE OF PRODUCING SMALL HAIL...
STRONG GUSTY WINDS...AND VERY HEAVY RAIN. THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM JOHNSON CITY TO LITTLE MEADOWS
TO WINDHAM...AND MOVING EAST AT 30 MPH.
* STRONG THUNDERSTORMS WILL BE NEAR...
PORT CRANE...BINGHAMTON AND CHENANGO BRIDGE AT 245 PM EDT...
VESTAL CENTER AT 250 PM EDT...
SANITARIA SPGS AT 255 PM EDT...
FRIENDSVILLE AT 300 PM EDT...
HARPURSVILLE AND WYOANNA AT 310 PM EDT...
SALT SPRINGS STATE PARK AND KIRKWOOD AT 315 PM EDT...
WINDSOR AT 320 PM EDT...
SANFORD AND HICKORY GROVE AT 330 PM EDT...
THESE STORMS HAVE THE POTENTIAL TO BECOME SEVERE AND PRODUCE LARGE
HAIL AND/OR DAMAGING WINDS.
THESE STORMS HAVE THE POTENTIAL TO PRODUCE VERY HEAVY RAIN...AND
COULD CAUSE LOCALIZED FLOODING OF ROADS AND POOR DRAINAGE AREAS.
LAT...LON 4185 7577 4192 7645 4200 7627 4200 7611
4208 7611 4219 7593 4220 7542 4208 7542
TACSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BINGHAMTON NY
328 PM EDT SAT AUG 31 2013
NYZ056-057-PAZ038-039-312015-
BRADFORD PA-BROOME NY-DELAWARE NY-SUSQUEHANNA PA-
328 PM EDT SAT AUG 31 2013
...LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTHERN BRADFORD...
NORTHWESTERN SUSQUEHANNA...SOUTHEASTERN BROOME AND WEST CENTRAL
DELAWARE COUNTIES...
* AT 318 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF STRONG THUNDERSTORMS CAPABLE OF PRODUCING SMALL HAIL...
STRONG GUSTY WINDS...AND VERY HEAVY RAIN. THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM WINDSOR TO BRACKNEY TO WARREN
CENTER TO FRANKLINDALE...AND MOVING EAST AT 20 MPH.
* STRONG THUNDERSTORMS WILL BE NEAR...
TOWANDA AND WINDSOR AT 335 PM EDT...
MONROETON AND MONROE AT 340 PM EDT...
WYSOX AT 345 PM EDT...
MACEDONIA AT 350 PM EDT...
FRIENDSVILLE AND SANFORD AT 355 PM EDT...
LE RAYSVILLE AND HERRICKVILLE AT 400 PM EDT...
BRUSHVILLE AND MIDDLETOWN CENTER AT 405 PM EDT...
HERRICK AND WYOANNA AT 410 PM EDT...
THESE STORMS HAVE THE POTENTIAL TO BECOME SEVERE AND PRODUCE LARGE
HAIL AND/OR DAMAGING WINDS.
THESE STORMS HAVE THE POTENTIAL TO PRODUCE VERY HEAVY RAIN...AND
COULD CAUSE LOCALIZED FLOODING OF ROADS AND POOR DRAINAGE AREAS.
LAT...LON 4218 7506 4201 7544 4196 7573 4172 7623
4168 7679 4192 7629 4198 7600 4215 7562
TACThe Binghamton radar (KBGM), 33 km away, was scanning. The volume nearest the first event began at 19:57 UTC.
1 thunderstorm wind. Local standard time, as filed.
Trees were blown down on New York Avenue, Pine Street and Chase Avenue.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Pennsylvania in 2013Every state in 2013This day in weather historyWarnings in Pennsylvania, August 2013
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: 467578.