Hail, Northampton
- When
- September 13, 4:57 PM EST
- Where
- Northampton County, Nazareth
- Measured
- 0.75 in hail
- Reported by
- Trained Spotter
- Coordinates
- 40.750, -75.320
Penny size hail fell in Nazareth.
A lee side trof helped trigger strong thunderstorms across the Poconos and Lehigh Valley during the afternoon and evening of the 13th.
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 PHI wrote it up.
A lee side trof helped trigger strong thunderstorms across the Poconos and Lehigh Valley during the afternoon and evening of the 13th.
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 Sep 13, 3:57 PM EST, 1 hour earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 457 PM EDT MON SEP 13 2010 .SYNOPSIS... A COLD FRONT CROSSING WESTERN SECTIONS OF NEW YORK STATE AND PENNSYLVANIA ACCOMPANIED BY SCATTERED STRONG THUNDERSTORMS LATE TODAY WILL MOVE OFF THE MID ATLANTIC COAST EARLY TUESDAY. HIGH PRESSURE WILL FOLLOW EASTWARD FROM THE OHIO VALLEY AND REACH THE MID ATLANTIC COAST LATE WEDNESDAY. LOW PRESSURE WILL MOVE EAST AND OFF THE MID ATLANTIC OR SOUTHERN NEW ENGLAND COAST EARLY FRIDAY WITH THE POTENTIAL FOR UNSETTLED WEATHER. HIGH PRESSURE COVERS THE NORTHEAST USA THIS COMING WEEKEND. && .NEAR TERM /UNTIL 6 AM TUESDAY MORNING/... THE SEVERE THUNDERSTORM WATCH CONTINUES IN THE NORTHERN PARTS OF OUR AREA. WE HAVE ADDED HUNTERDON AND SOMERSET COUNTIES TO THE WATCH...WHICH REMAINS IN EFFECT UNTIL 8PM THIS EVENING. OTHERWISE A SHARP CUTOFF TO EXPECTED ACTIVITY VICINITY ABE-NEL LINE IS STILL CONFIRMED BY THE 18Z NAM. ONCE THE LEAD LINE ENTERING NW NJ ATTM MOVES THRU THIS EVENING...THE SECOND LINE IN W NYS SHOULD NOT AFFECT US. THEN ITS CLEARING AND BLENDED 12Z GFS/NAM MOS GUIDANCE. WE DO SEE SOME MOISTURE IN SE PA AND S NJ POOLED ALOFT TWD DAWN TUE BUT BAD TIMING FOR CONVECTION AND MAYBE JUST PATCHY CLOUDINESS. && .SHORT TERM /6 AM TUESDAY MORNING THROUGH THURSDAY/... DIURNAL FAIR WX SC EACH AFTERNOON BOTH TUE AND WED. THERE IS AN IMPULSE THAT COULD PRODUCE SPRINKLES IN OUR AREA ACROSS SW PA N DEL AND NE MD EARLY WED BUT FOR NOW DID NOT PLAY THIS UP EXCEPT VIA CLOUD COVER. OTHERWISE THIS PORTION OF THE FCST IS BLENDED 12Z NCEP MOS GUIDANCE. WINDS: WNW GUST AROUND 20 KTS TUESDAY AFTN/EVE DIMINISH AT NIGHT. WED MAY SEE A SEABREEZE LATE IN THE DAY. THURSDAY...MODEL SOLUTIONS DIVERGE...ESP 12Z OPERATIONAL GFS/ECMWF. USED A 50 POP FROM THE 12Z GFS MEX GUIDANCE. CLOUDS DEFINITELY INCREASE. TEMPS DEPENDENT ON CLOUD COVER. THIS LOOKS LIKE AN INTERESTING SYSTEM WITH A DECENT SPREAD OF BUST POTENTIAL. && .LONG TERM /THURSDAY NIGHT THROUGH MONDAY/... THE NORTHERN STREAM REMAINS FAST AND ACTIVE...AND THIS WILL MAKE TIMING AND PLACEMENT OF FRONTS MORE DIFFICULT THAN USUAL. FOR THE MOST PART...THE TIMING AND PLACEMENT OF FEATURES WAS BASED MAINLY ON THE ECMWF. MOISTURE WILL CONTINUE RIDING NORTHEAST ALONG A FRONTAL BOUNDARY. PRECIPITABLE WATER VALUES REACH NEAR 1.75 INCHES (BASED ON THE 1200 UTC GFS)...AND THIS COULD RESULT IN A THREAT FOR HEAVY RAIN... ESPECIALLY NORTH OF THE FRONTAL BOUNDARY ITSELF. NOT SURE IF THERE WILL BE ENOUGH LEFTOVER INSTABILITY FOR DEEP CONVECTION THURSDAY NIGHT...SO THE MENTION OF THUNDER WAS LEFT OUT FOR NOW. IT LOOKS LIKE A SERIES OF WAVES WILL TRY TO RIDE ALONG THE FRONTAL BOUNDARY STRETCHING FROM CENTRAL NEW ENGLAND THROUGH OHIO. FOR NOW...THE BEST CHANCE OF SHOWERS WAS PLACED NEAR AND NORTH OF THE FONT...BUT PLACEMENT OF THE FRONT IS UNCERTAIN...AND THIS MAY HAVE TO BE ADDRESSED LATER. A SHORT WAVE IN THE NORTHERN STREAM SHOULD PUSH THE FRONT THROUGH THE FORECAST AREA FRIDAY AFTERNOON...WITH A CYCLONIC FLOW DEVELOPING BEHIND IT FOR FRIDAY NIGHT AND SATURDAY. RIGHT NOW...THAT TIME PERIOD LOOKS DRY WITH HIGH PRESSURE BUILDING INTO THE FORECAST AREA. THE LOWER LEVELS DO NOT COOL OFF MUCH...AS 850 MB TEMPERATURES HOVER NEAR 14 CELSIUS. THAT AIRMASS REMAINS PLACES INTO SUNDAY...WHEN MOISTURE AGAIN INCREASES ON THE RETURN FLOW AROUND THE SURFACE HIGH. THE 1200 UTC GFS SHOWS PRECIPITABLE WATER VALUES NEAR 1.35 INCHES. WITH THE NEXT SHORT WAVE IN THE NORTHERN FLOW DROPPING INTO THE FORECAST AREA SUNDAY AFTERNOON...PLACED A CHANCE OF SHOWERS ACROSS NORTHERN AREAS. AT THIS DISTANCE...INSTABILITY APPEARS TO BE THE LIMITING FACTOR FOR ADDING THUNDER...SO IT WILL BE LEFT OUT FOR NOW. BEHIND THE SHORT WAVE AND SURFACE FRONT...THE FORECAST AREA GOES INTO A CYCLONIC FLOW WITH MUCH COOLER TEMPERATURES. 850 MB TEMPERATURES DROP TO NEAR 7 DEGREES CELSIUS...WHICH WOULD TRANSLATE INTO HIGHS IN THE UPPER 60S TO LOWER 70S. AT THIS POINT...WILL KEEP THE FORECAST DRY...BUT IF THE PATTERN BEARS OUT...SHOWERS MAY NEED TO BE ADDED TO THE HIGHER TERRAIN AT SOME POINT. && .AVIATION /21Z MONDAY THROUGH SATURDAY/... THE FOLLOWING DISCUSSION IS FOR KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY AND SURROUNDING AREAS. VFR CONDITIONS ARE ACROSS THE TERMINALS AS OF THE EARLY AFTERNOON WITH A WEAK AREA OF HIGH PRESSURE ACROSS THE REGION. A FRONTAL SYSTEM AND UPPER SHORT WAVE WILL CROSS THE AREA LATER THIS AFTERNOON AND EARLY EVENING. THIS FEATURE WILL BE ACCOMPANIED BY A WIND SHIFT AND SCT CLOUD COVER. THERE MAY BE SOME SCT SHOWERS/TSTMS FURTHER NORTH NEAR NY/NJ STATE LIKE AREA. WINDS WILL SHIFT AROUND TO W OR NW BEHIND THE FEATURE AND MAY RAMP UP TO AROUND 10 KNOTS BEFORE DECOUPLING THIS EVENING. TUE...AFTER SUNRISE MIXING SHOULD CREATE GOOD MIXING AND NW WINDS GUSTING TO AROUND 20 KTS WILL OCCUR. OUTLOOK... GENERALLY VFR CONDITIONS ARE EXPECTED THE NEXT SEVERAL DAYS WITH THE NEXT CHC OF LOWER CIGS/VSBYS ON THURSDAY AS A WARM FRONT APPROACHES THE AREA. && .MARINE... FAIRLY QUIET ON THE WATERS TODAY...AND WITH MOST OF THE SHOWER/TSTM ACTIVITY EXPECTED TO REMAIN UP NORTH...IT SHOULD STAY THAT WAY. AS OF THE EARLY AFTERNOON THE WINDS ON THE WATERS ARE FAIRLY LIGHT AND THEY WILL SLOWLY SWITCH AROUND TO S OR SW AHEAD OF THE APPROACHING FRONT/SHORT WAVE. WINDS WILL SWING AROUND TO NW OR W ONCE THE FEATURE PASSES LATER TONIGHT. WIND SPEEDS WILL INCREASE TUE MORNING WITH GUSTS TO BETWEEN 15 AND 20 KNOTS. WINDS AND SEAS WILL REMAIN BELOW SCA CRITERIA. CONTINUED BELOW SCA CRITERIA SHOULD PERSIST INTO THE LATE WEEK WITH HIGH PRESSURE BUILDING IN. THE NEXT CHC FOR ANY SIGNIFICANT WEATHER WILL BE THU WHEN A WARM FRONT APPROACHES FROM THE SOUTH. && .PHI WATCHES/WARNINGS/ADVISORIES... PA...NONE. NJ...NONE. DE...NONE. MD...NONE. MARINE...NONE. && SYNOPSIS...DRAG NEAR TERM...DRAG/MEOLA SHORT TERM...DRAG LONG TERM...DRAG/HAYES AVIATION...O'HARA MARINE...O'HARA
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 457 PM EDT MON SEP 13 2010 DEZ001>004-MDZ008-012-015-019-020-NJZ016>019-021>025-027-PAZ060-061- 067>071-142100- NEW CASTLE-KENT-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD- QUEEN ANNES-TALBOT-CAROLINE-SALEM-GLOUCESTER-CAMDEN- NORTHWESTERN BURLINGTON-CUMBERLAND-ATLANTIC-CAPE MAY- ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-SOUTHEASTERN BURLINGTON- BERKS-LEHIGH-CHESTER-MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA- 457 PM EDT MON SEP 13 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL DELAWARE...NORTHERN DELAWARE...SOUTHERN DELAWARE...NORTHEAST MARYLAND...SOUTHERN NEW JERSEY...EAST CENTRAL PENNSYLVANIA AND SOUTHEAST PENNSYLVANIA. .DAY ONE...TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME. ANZ430-431-452>455-142100- DELAWARE BAY WATERS NORTH OF EAST POINT NJ TO SLAUGHTER BEACH DE- DELAWARE BAY WATERS SOUTH OF EAST POINT NJ TO SLAUGHTER BEACH DE- COASTAL WATERS FROM LITTLE EGG INLET TO GREAT EGG INLET NJ OUT 20 NM- COASTAL WATERS FROM GREAT EGG INLET TO CAPE MAY NJ OUT 20 NM- COASTAL WATERS FROM CAPE MAY NJ TO CAPE HENLOPEN DE OUT 20 NM- COASTAL WATERS FROM CAPE HENLOPEN TO FENWICK ISLAND DE OUT 20 NM- 457 PM EDT MON SEP 13 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS AND DELAWARE BAY WATERS. .DAY ONE...TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME. NJZ001-007>010-PAZ054-055-062-142100- SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-CARBON-MONROE-NORTHAMPTON- 457 PM EDT MON SEP 13 2010 ...SEVERE THUNDERSTORM WATCH 655 IN EFFECT UNTIL 8 PM EDT THIS EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHERN NEW JERSEY...NORTHWEST NEW JERSEY...EAST CENTRAL PENNSYLVANIA AND NORTHEAST PENNSYLVANIA. .DAY ONE...TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. SEVERE THUNDERSTORM WATCH. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. NJZ012>015-020-026-142100- MIDDLESEX-WESTERN MONMOUTH-EASTERN MONMOUTH-MERCER-OCEAN- COASTAL OCEAN- 457 PM EDT MON SEP 13 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NEW JERSEY...NORTHERN NEW JERSEY AND SOUTHERN NEW JERSEY. .DAY ONE...TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME. ANZ450-451-142100- COASTAL WATERS FROM SANDY HOOK TO MANASQUAN INLET NJ OUT 20 NM- COASTAL WATERS FROM MANASQUAN INLET TO LITTLE EGG INLET NJ OUT 20 NM- 457 PM EDT MON SEP 13 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS. .DAY ONE...TONIGHT. A NORTHWEST WIND GUST BETWEEN 30 AND 40 KNOTS IS POSSIBLE BETWEEN 530 PM AND 8 PM IN THE CENTRAL NEW JERSEY COASTAL WATERS LATE TODAY IN ASSOCIATION WITH A LINE OF SCATTERED STRONG THUNDERSTORMS. MARINERS SHOULD MONITOR POSSIBLE STATEMENTS ISSUED LATER THIS AFTERNOON. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
318 PM EDT MON SEP 13 2010
NJZ001-132015-
SUSSEX NJ-
318 PM EDT MON SEP 13 2010
...A STRONG THUNDERSTORM WILL AFFECT SUSSEX COUNTY THROUGH 4:15 PM...
AT 315 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED A STRONG
THUNDERSTORM 26 MILES NORTHEAST OF SCRANTON...MOVING SOUTHEAST AT 35
MPH. THE THUNDERSTORM WILL BE NEAR HAINESVILLE AND HIGH POINT AROUND
405 PM AND BRANCHVILLE AROUND 415 PM.
A BROKEN LINE OF SHOWERS AND A FEW STRONG TO SEVERE THUNDERSTORMS
WAS APPROACHING NORTHWESTERN NEW JERSEY. A SEVERE THUNDERSTORM WATCH
IS IN EFFECT FOR THE AREA UNTIL 8:00 PM THIS EVENING. WIND GUSTS TO
50 MPH ARE POSSIBLE WITH ANY OF THE THUNDERSTORMS...AND POSSIBLY
NEAR OR OVER 60 MILES AN HOUR WITH THE STRONGEST STORMS. ALSO...HAIL
UP TO AROUND 1 INCH DIAMETER AND FREQUENT...DANGEROUS CLOUD TO
GROUND LIGHTNING ARE POSSIBLE FROM ANY OF THE THUNDERSTORMS THIS
AFTERNOON. ANY THUNDERSTORMS THIS AFTERNOON WILL MOVE RAPIDLY TOWARD
THE EAST-SOUTHEAST OR SOUTHEAST AT 35 TO 40 MILES AN HOUR.
LAT...LON 4132 7461 4121 7442 4096 7468 4116 7491
4121 7487 4122 7488 4127 7484 4132 7479
4135 7471 4135 7468SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
330 PM EDT MON SEP 13 2010
PAZ055-132030-
MONROE PA-
330 PM EDT MON SEP 13 2010
...A STRONG THUNDERSTORM WILL AFFECT MONROE COUNTY THROUGH 4:30 PM...
AT 325 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED A STRONG
THUNDERSTORM 10 MILES NORTH OF SCRANTON...MOVING SOUTHEAST AT 40
MPH. THE THUNDERSTORM WILL BE NEAR GOULDSBORO STATE PARK AROUND 400
PM...TOBYHANNA AROUND 405 PM...POCONO PINES...LONG POND...POCONO
RACEWAY AROUND 410 PM...SKYTOP...CANADENSIS...MOUNTAINHOME AROUND
415 PM AND ALPINE MOUNTAIN AROUND 420 PM.
A BROKEN LINE OF SHOWERS AND A FEW STRONG TO POSSIBLY SEVERE
THUNDERSTORMS WAS APPROACHING THE SOUTHERN POCONOS. A SEVERE
THUNDERSTORM WATCH IS IN EFFECT FOR THE AREA UNTIL 8:00 PM THIS
EVENING. WIND GUSTS TO 50 MPH ARE POSSIBLE WITH ANY OF THE
THUNDERSTORMS...AND POSSIBLY NEAR OR OVER 60 MILES AN HOUR WITH THE
STRONGEST STORMS. ALSO...HAIL UP TO AROUND 1 INCH DIAMETER AND
FREQUENT...DANGEROUS CLOUD TO GROUND LIGHTNING ARE POSSIBLE FROM ANY
OF THE THUNDERSTORMS THIS AFTERNOON. ANY THUNDERSTORMS THIS
AFTERNOON WILL MOVE RAPIDLY TOWARD THE EAST-SOUTHEAST OR SOUTHEAST
AT 35 TO 40 MILES AN HOUR.
LAT...LON 4124 7513 4116 7516 4115 7509 4108 7503
4086 7535 4115 7563 4123 7554 4123 7552
4125 7550 4125 7531 4126 7514SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 453 PM EDT MON SEP 13 2010 NJZ001-007>009-PAZ055-062-132200- HUNTERDON NJ-MONROE PA-MORRIS NJ-NORTHAMPTON PA-SUSSEX NJ-WARREN NJ- 453 PM EDT MON SEP 13 2010 ...A STRONG THUNDERSTORM WILL AFFECT HUNTERDON...MONROE...MORRIS... NORTHAMPTON...SUSSEX AND WARREN COUNTIES... AT 449 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 6 MILES EAST OF MOUNT POCONO...MOVING SOUTHEAST AT 30 MPH. THE THUNDERSTORM WILL BE NEAR ANALOMINK...EAST STROUDSBURG AROUND 500 PM...DELAWARE WATER GAP...DELAWARE WATER GAP AROUND 515 PM...HOPE...BLAIRSTOWN AROUND 530 PM...GREAT MEADOWS...GREAT MEADOWS-VIENNA AROUND 545 PM...LONG VALLEY AND BUDD LAKE AROUND 600 PM. WIND GUSTS TO 50 MPH AND SMALL HAIL ARE POSSIBLE WITH THIS STORM. LAT...LON 4115 7514 4085 7462 4071 7488 4102 7532 HAYES
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
503 PM EDT MON SEP 13 2010
NJZ001-007>009-PAZ055-062-132200-
HUNTERDON NJ-MONROE PA-MORRIS NJ-NORTHAMPTON PA-SUSSEX NJ-WARREN NJ-
503 PM EDT MON SEP 13 2010
...A COUPLE OF STRONG THUNDERSTORMS WILL AFFECT HUNTERDON...
MONROE...MORRIS...NORTHAMPTON...SUSSEX AND WARREN COUNTIES...
AT 500 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED A STRONG
THUNDERSTORM 12 MILES EAST OF MOUNT POCONO...MOVING SOUTHEAST AT 25
MPH. THE THUNDERSTORM WILL BE NEAR DELAWARE WATER GAP...DELAWARE
WATER GAP AROUND 510 PM...PORTLAND AROUND 515 PM... BLAIRSTOWN...
COLUMBIA AROUND 520 PM...HOPE...BELVIDERE AROUND 530 PM...GREAT
MEADOWS...GREAT MEADOWS-VIENNA AND OXFORD AROUND 540 PM.
VERY HEAVY RAIN WILL FALL FROM THIS STORM...AND WILL CAUSE WATER TO
POND ON ROADS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS.
WIND GUSTS TO 50 MPH ARE POSSIBLE WITH THIS STORM. EXPECT HAIL AND
FREQUENT...DANGEROUS CLOUD TO GROUND LIGHTNING AS WELL.
LAT...LON 4115 7513 4115 7509 4113 7506 4109 7503
4109 7501 4083 7466 4064 7491 4104 7534
4116 7515<!doctype html>
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</html>SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 528 PM EDT MON SEP 13 2010 PAZ054-055-062-132230- CARBON PA-MONROE PA-NORTHAMPTON PA- 528 PM EDT MON SEP 13 2010 ...A STRONG THUNDERSTORM WILL AFFECT CARBON...SOUTHERN MONROE AND NORTHAMPTON COUNTIES... AT 525 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 14 MILES SOUTHWEST OF MOUNT POCONO...MOVING SOUTHEAST AT 30 MPH. THE THUNDERSTORM WILL BE NEAR GILBERT...ROSSLAND AROUND 545 PM...BELFAST...WIND GAP AROUND 600 PM...STOCKERTOWN AND TATAMY AROUND 615 PM. VERY HEAVY RAIN WILL FALL FROM THIS STORM...AND WILL CAUSE WATER TO POND ON ROADS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS. WIND GUSTS TO 50 MPH ARE POSSIBLE WITH THIS STORM. EXPECT SMALL HAIL AND FREQUENT...DANGEROUS CLOUD TO GROUND LIGHTNING FROM THIS STORM. LAT...LON 4087 7510 4067 7530 4098 7572 4111 7556
The Philadelphia radar (KDIX), 118 km away, was scanning. The volume nearest the first event began at 21:58 UTC.
1 hail. Local standard time, as filed.
Penny size hail fell in Nazareth.
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, September 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 2026-09-30. Each event’s entry at NCEI: 260642.