Tornado and Hail in Pennsylvania, June 30, 2015

Name: Tornado and Hail in Pennsylvania, June 30, 2015
Start: 2015-06-30T13:11
End: 2015-06-30T17:30
Location: Pennsylvania

June 30, 2015 · NWS PHI · 32 events in 7 counties and zones

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

Open the live radar over this ground

The toll

Deaths: 0
Injuries: 0
Property damage: $1.5 million
Crop damage: None recorded
Events: 32

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.

Strong to severe thunderstorms that produced damaging winds, large hail and a tornado affected Eastern Pennsylvania from the middle of the afternoon into the early evening on the 30th. Hardest hit were the Lehigh Valley which experienced a strong microburst and Chester County which experienced a tornado. A state of emergency was declared in Whitehall Township (Lehigh County). Pennsylvania Power and Light reported about 11,000 of its customers lost power in the Lehigh Valley. Hardest hit by power outages included Whitehall and Catasauqua in Lehigh County and Hanover Township east through Lower Nazareth Township in Northampton County. First Energy reported 4,000 of its customers lost power in Northampton County. Power was not fully restored until the night of July 1st. Heavy rain also caused some flash flooding in the Lehigh Valley and Poconos. The most severe thunderstorms formed near a warm frontal boundary that slowly lifted northeast on the 30th.

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 30, 9:30 AM EST, 3 hours 41 minutes earlier.

Area forecast discussion, Jun 30, 9:30 AM EST, 3 hours 41 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1030 AM EDT TUE JUN 30 2015

.SYNOPSIS...
A WARM FRONT OVER THE OHIO VALLEY IS PREDICTED TO LIFT SLOWLY
NORTHEAST INTO AND THROUGH THE FORECAST AREA TONIGHT. IT WILL
BE FOLLOWED BY A SLOW MOVING COLD FRONT LATE WEDNESDAY OR THURSDAY.
THAT FRONT IS EXPECTED TO STALL JUST SOUTH OF OUR REGION FOR THE
REMAINDER OF THE WORK WEEK. ANOTHER COLD FRONT SHOULD PASS
THROUGH OUR REGION ON INDEPENDENCE DAY. A WEAK HIGH PRESSURE
SYSTEM SHOULD FOLLOW ON SUNDAY AND MOVE OFFSHORE AS A WARM FRONT
APPROACHES FROM THE OHIO VALLEY ON MONDAY.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
LATEST RADAR TRENDS INDICATE -SHRA WITH AN OCCASIONAL RUMBLE OF
THUNDER MOVING THRU THE POCONOS AND LEHIGH VALLEY AS ISENTROPIC
LIFT AND ELEVATED INSTABILITY PRECEDE A WARM FRONT INVOF DE BAY
ATTM. AS MID-LEVEL FLOW BECOMES MORE MERIDIONAL IN RESPONSE TO
S/WV TROUGH APPROACHING FROM THE WEST...THE WM FRONT WILL MAKE
SLOW PROGRESS NORTH THRU THE DAY. THE MAIN CONCERN FOR TODAY'S
FORECAST IS THE POTENTIAL FOR CONVECTION.

THERE IS STILL A LOT OF UNCERTAINTY WITH REGARD TO CONVECTIVE
POTENTIAL. APPROACHING S/WV WILL PROVIDE A SOURCE OF LIFT...AS
BEST FORCING OCCURS NEAR THE WARM FRONTAL BOUNDARY. AMPLE LOW-
LEVEL MOISTURE IS IN PLACE...AS DRIER MID-LEVEL AIR ADVECTS IN
ALOFT. THE MAIN UNCERTAINTY IS INSTABILITY...AS LAPSE RATES ARE
LESS THAN IDEAL...WITH PERHAPS EVEN SOME CAPPING. SAT TRENDS
ALSO INDICATE CONSIDERABLE CLOUDINESS. THEREFORE ML CAPE MAY
HAVE A TOUGH TIME REACHING 1 KJ.

ALTHOUGH INSTABILITY IS LIMITED...BULK SHEAR IS 40 KNOTS NW OF
I-95 ALONG W/ AMPLE LOW-LEVEL HELICITY...AS 0-1 KM SHEAR REACHES
20 KNOTS. SO THERE IS SVR POTENTIAL TODAY MAINLY NW OF I-95...ESP
THE POCONOS AND LEHIGH VALLEY...W/ THE MAIN THREAT BEING DAMAGING
WINDS AND SMALL HAIL GIVEN INVERTED-V PROFILES AND FAVORABLE WBZ
HEIGHTS. WILL ALSO HAVE TO WATCH ACTIVITY NEAR THE WARM FRONT...
WHERE A SUPERCELL CANNOT BE RULED OUT...PARTICULARLY IF GREATER
INSTABILITY IS REALIZED. FLASH FLOODING IS ALSO A CONCERN MAINLY
NW OF I-95...WHERE CELLS WILL HAVE A TENDANCY TO TRAIN.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH 6 AM WEDNESDAY/...
A CHANCE OF SCATTERED SHOWERS AND THUNDERSTORMS WILL CONTINUE
THROUGH TONIGHT AS THE WARM FRONT TO OUR SOUTH LIFTS ACROSS THE AREA
AND ADDITIONAL SHORT WAVES/VORTICITY IMPULSES MOVE ACROSS THE AREA.
IT IS POSSIBLE THAT THERE COULD BE A BREAK IN SHOWER ACTIVITY FOR
SOME AREAS DURING A PORTION OF THE OVERNIGHT IN BETWEEN SHORT WAVES.
HOWEVER, WE EXPECT ACTIVITY TO INCREASE AGAIN TOWARD THE VERY EARLY
MORNING HOURS WEDNESDAY. THERE REMAINS SOME INSTABILITY THROUGH THE
NIGHT AND BULK SHEAR MAY ACTUALLY INCREASE OVERNIGHT, SO THERE
REMAINS THE POTENTIAL FOR SOME STRONG STORMS.

LOWS TONIGHT ARE A BLEND OF MAV/MET MOS AND MOSGUIDE.

&&

.LONG TERM /WEDNESDAY THROUGH MONDAY/...
THERE WAS ABOUT A 50/50 SPLIT BETWEEN THE GFS AND WRF-NMMB
INITIALIZATION AT 500MB. FARTHER DOWNWARD, THE WRF-NMMB LOOKED
BETTER. DP/DTING THE WESTERN CONUS RIDGE LOOKS STRONGER, WHILE THE
ERN NOAM TROF IS BROADER. WHILE THE MODELS AGREE ON A CONTINUATION
OF THIS OVERALL SYNOPTIC PATTERN, THEY VARY ON DETAILS AND
CONTINUE TO FIND THEMSELVES IN ODD POSITIONS WITH THE NORMALLY
SLOWER ECMWF AND WRF-NMMB CONSIDERABLY FASTER THAN THE OTHER
MEDIUM RANGE MODELS. AS PER PMDHMD WE ARE LEANING AWAY FROM THESE
FASTER RESULTS AND GOING MORE TOWARD CONTINUITY. REGARDLESS WITH
THE CURRENT PATTERN REMAINING IN PLACE IT IS TOUGH TO CONFIDENTLY
PREDICT MUCH PROLONGED DRY WEATHER.

THE START OF THE LONG TERM DOES HAVE DECENT MODELING CONSENSUS.
WHILE THE WARM FRONT SHOULD BE LIFTING NORTHEAST OF OUR CWA,
SHORT WAVES INTERACTING WITH THE WARM SECTOR SHOULD RE-GENERATE
MORE SHOWERS AND TSTMS RATHER QUICKLY ON WEDNESDAY MORNING. COLD
POCKET ALOFT COUPLED WITH NEAR NEUTRAL LOWER LEVEL THERMAL
FIELDS KEEP PREDICTED TOTAL TOTALS AT OR AROUND 50C.
APPROPRIATELY MIXED LAYER CAPES (ABOVE 1000J IN DELMARVA) PEAK
DURING THE MORNING AND DECREASE AS THE AFTERNOON PROGRESSES AS
THE COLD POCKET GETS SHEARED. HIGHEST POPS ARE IN THE MORNING WITH
A TRAIL OFF AS THE DAY CONTINUES. STRONGER SHEAR AND CAPE ARE
DECOUPLED AND (CAPE) MAY NOT RAMP UP FAST ENOUGH GIVEN TIMING OF
FEATURES FOR SEVERE WHICH LOOKS BETTER NORTHEAST OF OUR CWA. AIR
MASS SUPPORTIVE OF MID TO UPPER 80S FOR MAX TEMPS MOST OF OUR CWA.

GIVEN THE BRIEF FLATTENING OF THE TROF ALOFT, WE DID NOT CARRY
MUCH OF A CHANCE OF THUNDER INTO THE NIGHT AND NO POPS ANYWHERE
OVERNIGHT. STAT GUIDANCE MINS LOOK REASONABLE.

ON THURSDAY THE FRONTAL BOUNDARY IS EXPECTED TO STALL JUST SOUTH OF
OUR CWA. FROM HERE THE TIMING OF IMPULSES ON THE FRONT START TO
DIVERGE. REGARDLESS, THE BOUNDARY IS CLOSE ENOUGH TO ACT AS A
TRIGGER WITH HIGHER CONFIDENCE (THUS HIGHER POPS) IN THE SOUTHEASTERN
PART OF UR CWA. MIXED LAYER CAPES IN DELMARVA REACH THE LOWER
1000S, BUT ARE RELATIVELY LOW FARTHER TO THE NORTHWEST. THUNDER
CHANCES MAY BE OVERSTATED. THERMAL FIELDS SUGGEST A 2-3F DROP OFF
IN MAX TEMPS FROM WED.

NOW THE MODELS REALLY START DIVERGING FOR THURSDAY NIGHT AND FRIDAY
WITH THE GFS AND CAN GGEM EMPHASIZING FRIDAY WITH THE ECMWF AND
WRF THURSDAY NIGHT. WHERE MODELS AGREE IS THAT INSTABILITY IN OUR
CWA IS MODEST AND THERE ARE HIGHER CHANCES SOUTH THAN NORTH.
TIMING RESOLUTION IS TOO UNCERTAIN TO FORECAST DRY WEATHER FOR
EITHER PERIOD. WE DID STEER HIGHER POPS INTO THURSDAY NIGHT AS THE
GEFS IS SLIGHTLY FASTER THAN THE OP GFS.

IT DOES NOT BECOME MUCH CLEARER FOR INDEPENDENCE DAY WITH THE ECMWF
FORECASTING A DRY DAY AND THE CAN GGEM HAVING A TOTAL WASHOUT. MOST
MODELS ARE NOT INDICATING A SFC LOW ON THE LEVEL OF LAST SATURDAY,
SO FOR NOW WE KEPT THE FORECAST FOR INDEPENDENCE DAY CLOSE TO
CONTINUITY AND SUMMER CLIMO AND NOT SOUND LIKE A TOTAL LOSS.

SUNDAY/MONDAY REMAIN CLOSE TO CONTINUITY. WITH BOTH THE GFS AND EC
DRY WE HAVE SUNDAY PREDICTED TO BE THE BETTER OF THE TWO WEEKEND
DAYS AND KEPT THE CHANCE FOR THUNDERSTORMS IN FOR MONDAY AS THE
WARM FRONT IS PREDICTED TO RETURN.

&&

.AVIATION /14Z TUESDAY THROUGH SATURDAY/...
THE FOLLOWING DISCUSSION IS FOR KPHL, KPNE, KTTN, KABE, KRDG, KILG,
KMIV, KACY AND SURROUNDING AREAS.

GENERAL VFR CONDITIONS WILL PERSIST ACROSS THE TAF SITES TODAY,
ALTHOUGH CLOUD COVER WILL CONTINUE TO INCREASE AND LOWER THROUGH THE
DAY. SHOWERS WILL BE ON THE INCREASE THROUGH THE MORNING AND INTO
THE AFTERNOON. WITH INSTABILITY INCREASING TODAY, THERE WILL BE A
CHANCE OF THUNDERSTORMS. ANY SHOWERS OR THUNDERSTORMS HAVE THE
POTENTIAL TO TEMPORARILY REDUCE VSBYS AND/OR CIGS. WINDS WILL
GENERALLY BE SOUTH TO SOUTHEAST, AND COULD GUST AROUND 15-20 KNOTS
LATER THIS MORNING INTO THIS AFTERNOON.

A CHANCE OF SHOWERS WILL CONTINUE TONIGHT, ALONG WITH THE CHANCE FOR
SCATTERED THUNDERSTORMS. ANY SHOWERS OR THUNDERSTORMS HAVE THE
POTENTIAL TO TEMPORARILY REDUCE VSBYS AND/OR CIGS. THERE IS A BETTER
POTENTIAL FOR LOWER VSBYS OVERNIGHT AS A WARM FRONT LIFTS ACROSS THE
AREA. WIND GUSTS WILL DROP OFF BY SUNSET, WITH A SOUTHERLY FLOW
REMAINING THROUGH THE NIGHT.

OUTLOOK...
WEDNESDAY...MAINLY VFR EXCEPT MVFR OR IFR CONDITIONS WITH
SCATTERED SHOWERS AND THUNDERSTORMS.

WEDNESDAY NIGHT...MOSTLY VFR WITH ANY PCPN CHANCES DECREASING
QUICKLY.

THURSDAY THROUGH SATURDAY...PREDOMINATELY VFR, BUT SOME
MVFR OR IFR CONDITIONS DURING SCATTERED SHOWERS AND THUNDERSTORMS.
IMPACT OUTLOOKED TO BE GREATER FOR SOUTHERN AIRPORTS AND TERMINALS.

&&

.MARINE...
SUB-SMALL CRAFT ADVISORY CONDITIONS WILL REMAIN ACROSS THE WATERS
TODAY INTO TONIGHT, ALTHOUGH WINDS MAY GUST AROUND 20 KNOTS AT
TIMES. SEAS WILL REMAIN AROUND 3-4 FEET. THERE IS A CHANCE OF
SHOWERS AND THUNDERSTORMS LATE THIS AFTERNOON INTO TONIGHT. HIGHER
WINDS AND WAVES COULD OCCUR WITH ANY SHOWERS OR THUNDERSTORMS.

OUTLOOK...
WEDNESDAY AND WEDNESDAY NIGHT...SEAS ON THE OCEAN MAY APPROACH SMALL
CRAFT ADVISORY CRITERIA IN PRE FRONTAL SOUTHERLY FLOW, BUT THERE
IS CONSIDERABLE UNCERTAINTY.

THURSDAY AND THURSDAY NIGHT...WINDS AND SEAS SHOULD REMAIN BELOW SCA
CRITERIA.

FRIDAY THROUGH SATURDAY...SEAS ON THE SOUTHERN OCEAN WATERS MIGHT
REACH SMALL CRAFT ADVISORY LEVELS PENDING THE STRENGTH OF THE LOW
PRESSURE SYSTEM ON THE FRONTAL BOUNDARY. CONFIDENCE IS LESS THAN
AVERAGE.

&&

.RIP CURRENTS...
BASED ON OUR LOCAL FORECAST APPLICATION USING A 3 FOOT WAVES/8
SECOND PERIOD AND SOUTHEAST WIND AROUND 12 KNOTS, WE WILL CONTINUE
WITH A MODERATE RISK OF RIP CURRENTS FOR NEW JERSEY AND LOW FOR
DELAWARE.

&&

.CLIMATE...
THE CHART BELOW SHOWS RAINFALL STATISTICS AT OUR FOUR BIG CLIMATE
SITES THRU 6/29. THE COLUMNS ARE BROKEN DOWN BY SITE, "POR" (HOW
FAR RECORDS DATE BACK), JUNE 2015 RAINFALL, NORMAL JUNE RAINFALL,
JUNE 2015 RAINFALL RANKING, AS WELL AS THE WETTEST JUNE ON RECORD.

SITE    POR     JUNE    NORMAL    RANK   WETTEST

ILG     1894    12.46    3.50      2ND     13.66 (2013)
ACY     1874     8.04    2.81      2ND      8.45 (1920)
ABE     1922     7.02    3.86      6TH     10.51 (1938)
PHL     1872     7.23    3.08     10TH     10.56 (2013)

AT THIS TIME, IT HAS BEEN THE SECOND WETTEST JUNE ON RECORD IN
BOTH WILMINGTON AND ATLANTIC CITY. WITH TODAY BEING THE LAST DAY
IN THE MONTH, CURRENT FORECASTS DO NOT FAVOR EITHER SITE BREAKING
THEIR ALL-TIME JUNE RAINFALL RECORD. HOWEVER, IT WOULD ONLY TAKE
A HEAVY SHOWER OR THUNDERSTORM TO CLOSE THE GAP, WHICH IS 0.41
INCHES IN ATLANTIC CITY AND 1.2 INCHES IN WILMINGTON.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...NONE.
NJ...NONE.
DE...NONE.
MD...NONE.
MARINE...NONE.

&&

SYNOPSIS...GIGI
NEAR TERM...FRANCK/ROBERTSON
SHORT TERM...ROBERTSON
LONG TERM...GIGI
AVIATION...GIGI/ROBERTSON
MARINE...GIGI/ROBERTSON
RIP CURRENTS...
CLIMATE...FRANCK

Hazardous weather outlook, Jun 30, 12:36 PM EST, 35 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
136 PM EDT TUE JUN 30 2015

DEZ001-MDZ008-012-015-019-020-PAZ054-055-060>062-070-071-101>106-
011745-
NEW CASTLE-CECIL-KENT MD-QUEEN ANNES-TALBOT-CAROLINE-CARBON-MONROE-
BERKS-LEHIGH-NORTHAMPTON-DELAWARE-PHILADELPHIA-WESTERN CHESTER-
EASTERN CHESTER-WESTERN MONTGOMERY-EASTERN MONTGOMERY-UPPER BUCKS-
LOWER BUCKS-
136 PM EDT TUE JUN 30 2015

...SEVERE THUNDERSTORM WATCH 372 IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHERN DELAWARE...NORTHEAST
MARYLAND...EAST CENTRAL PENNSYLVANIA...NORTHEAST PENNSYLVANIA AND
SOUTHEAST PENNSYLVANIA.

.DAY ONE...THIS AFTERNOON AND 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...WEDNESDAY THROUGH MONDAY.

NO WIDESPREAD HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

DEZ002-NJZ001-007>010-015>018-021-011745-
KENT-SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-MERCER-SALEM-GLOUCESTER-
CAMDEN-CUMBERLAND-
136 PM EDT TUE JUN 30 2015

...SEVERE THUNDERSTORM WATCH 372 IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL DELAWARE...CENTRAL
NEW JERSEY...NORTHERN NEW JERSEY...NORTHWEST NEW JERSEY AND
SOUTHERN NEW JERSEY.

.DAY ONE...THIS AFTERNOON AND 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...WEDNESDAY THROUGH MONDAY.

NO WIDESPREAD HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

DEZ003-NJZ012-013-019-020-022-023-027-011745-
INLAND SUSSEX-MIDDLESEX-WESTERN MONMOUTH-NORTHWESTERN BURLINGTON-
OCEAN-ATLANTIC-CAPE MAY-SOUTHEASTERN BURLINGTON-
136 PM EDT TUE JUN 30 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHERN DELAWARE...CENTRAL
NEW JERSEY...NORTHERN NEW JERSEY AND SOUTHERN NEW JERSEY.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

SOME THUNDERSTORMS THIS AFTERNOON AND NIGHT COULD BE STRONG WITH
GUSTY WINDS AND SMALL HAIL.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

NO WIDESPREAD HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED.

NJZ014-024>026-011745-
EASTERN MONMOUTH-ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-
COASTAL OCEAN-
136 PM EDT TUE JUN 30 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NEW JERSEY AND
SOUTHERN NEW JERSEY.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THERE IS A MODERATE RISK FOR RIP CURRENTS TODAY.

SOME THUNDERSTORMS LATE THIS AFTERNOON AND NIGHT COULD BE STRONG
WITH GUSTY WINDS AND SMALL HAIL.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

NO WIDESPREAD HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED.

DEZ004-011745-
DELAWARE BEACHES-
136 PM EDT TUE JUN 30 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHERN DELAWARE.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

SOME THUNDERSTORMS LATE THIS AFTERNOON AND NIGHT COULD BE STRONG
WITH GUSTY WINDS AND SMALL HAIL.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

NO WIDESPREAD HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED.

ANZ431-450>455-011745-
DELAWARE BAY WATERS SOUTH OF EAST POINT NJ TO SLAUGHTER BEACH DE-
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-
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-
136 PM EDT TUE JUN 30 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS AND
DELAWARE BAY WATERS.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

NO WIDESPREAD HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED.

ANZ430-011745-
DELAWARE BAY WATERS NORTH OF EAST POINT NJ TO SLAUGHTER BEACH DE-
136 PM EDT TUE JUN 30 2015

...SEVERE THUNDERSTORM WATCH 372 IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR DELAWARE BAY WATERS.

.DAY ONE...THIS AFTERNOON AND 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...WEDNESDAY THROUGH MONDAY.

NO WIDESPREAD HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

In the hours before

Special weather statement, Jun 30, 11:47 AM EST, 1 hour 24 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1247 PM EDT TUE JUN 30 2015

PAZ060-061-301730-
BERKS-LEHIGH-
1247 PM EDT TUE JUN 30 2015

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN BERKS AND WEST CENTRAL
LEHIGH COUNTIES...

AT 1245 PM EDT...A STRONG THUNDERSTORM WAS OVER WOMELSDORF...OR NEAR
MYERSTOWN...MOVING NORTHEAST AT 35 MPH.

WIND GUSTS UP TO 40 MPH ARE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
KUTZTOWN...HAMBURG...FLEETWOOD...WOMELSDORF...WERNERSVILLE...
NEWMANSTOWN...LEESPORT...SHOEMAKERSVILLE...BERNVILLE...STRAUSSTOWN...
LENHARTSVILLE...WANAMAKERS...FAIRVIEW HGTS AND CENTERPORT.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

LAT...LON 4054 7620 4054 7617 4057 7602 4063 7600
      4065 7598 4070 7582 4055 7562 4031 7614
      4036 7621 4037 7623 4043 7633
TIME...MOT...LOC 1645Z 230DEG 30KT 4040 7621

MWG

Special weather statement, Jun 30, 12:47 PM EST, 24 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
147 PM EDT TUE JUN 30 2015

PAZ054-060>062-301830-
CARBON-NORTHAMPTON-BERKS-LEHIGH-
147 PM EDT TUE JUN 30 2015

...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN CARBON...WEST
CENTRAL NORTHAMPTON...NORTHEASTERN BERKS AND LEHIGH COUNTIES...

AT 145 PM EDT...A STRONG THUNDERSTORM WAS OVER LENHARTSVILLE...OR 15
MILES EAST OF SCHUYLKILL HAVEN...MOVING NORTHEAST AT 30 MPH.

WIND GUSTS UP TO 40 MPH ARE POSSIBLE WITH THIS STORM ALONG WITH
FREQUENT LIGHTNING AND HEAVY DOWNPOURS.

THIS STORM WILL BE NEAR...
  KUTZTOWN AROUND 150 PM EDT.
  WANAMAKERS AROUND 155 PM EDT.
  NEW TRIPOLI AROUND 205 PM EDT.
  JORDAN VALLEY AND CLAUSSVILLE AROUND 210 PM EDT.
  SCHNECKSVILLE AROUND 215 PM EDT.
  NEFFS...EMERALD AND COFFEETOWN AROUND 220 PM EDT.
  SLATINGTON AND WALNUTPORT AROUND 225 PM EDT.
  NORTHAMPTON...PALMERTON...BATH...BERLINSVILLE...BEERSVILLE AND
DANIELSVILLE AROUND 230 PM EDT.

OTHER LOCATIONS IMPACTED BY THIS STORM INCLUDE HOKENDAUQUA...
BOWMANSTOWN...FULLERTON...CATASAUQUA...NORTH CATASAUQUA...PARRYVILLE
AND COPLAY.

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT FOR
NORTHEASTERN PENNSYLVANIA.

LAT...LON 4061 7600 4067 7591 4070 7583 4074 7576
      4075 7579 4088 7559 4067 7532 4045 7589
      4059 7601
TIME...MOT...LOC 1745Z 236DEG 25KT 4057 7588

MWG

Special weather statement, Jun 30, 12:55 PM EST, 16 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
155 PM EDT TUE JUN 30 2015

PAZ060-101-301845-
BERKS-WESTERN CHESTER-
155 PM EDT TUE JUN 30 2015

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN CHESTER...SOUTHEASTERN
BERKS AND WESTERN MONTGOMERY COUNTIES...

AT 154 PM EDT...A STRONG THUNDERSTORM WAS NEAR HONEY BROOK...OR 7
MILES SOUTHEAST OF NEW HOLLAND...MOVING NORTHEAST AT 20 MPH.

WIND GUSTS UP TO 40 MPH ARE POSSIBLE WITH THIS STORM ALONG WITH
FREQUENT LIGHTNING AND HEAVY DOWNPOURS.

THIS STORM WILL BE NEAR...
  COATESVILLE AND HONEY BROOK AROUND 205 PM EDT.
  ELVERSON...NEW MORGAN AND GLENMOORE AROUND 220 PM EDT.
  BIRDSBORO AND PUGHTOWN AROUND 240 PM EDT.
  CEDARVILLE AROUND 245 PM EDT.

OTHER LOCATIONS IMPACTED BY THIS STORM INCLUDE MODENA...THORNDALE...
LORANE...SOUTH POTTSTOWN...KENILWORTH...AMITY GARDENS...SOUTH
COATESVILLE...ATGLEN...SPRING CITY AND STOWE.

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT FOR
SOUTHEASTERN PENNSYLVANIA.

LAT...LON 3987 7599 3995 7600 4004 7593 4011 7594
      4014 7588 4020 7597 4034 7583 4026 7568
      4024 7570 4024 7565 4019 7554 4015 7552
      4016 7550 4014 7551 4013 7549 4004 7565
      4003 7571 3999 7573 3984 7602
TIME...MOT...LOC 1754Z 226DEG 19KT 4005 7596

MWG

The radar

The Philadelphia radar (KDIX), 127 km away, was scanning. The volume nearest the first event began at 18:11 UTC.

Open the radar archive at this moment

Event by event

18 thunderstorm wind, 7 funnel cloud, 5 hail, 1 tornado, 1 lightning. Local standard time, as filed.

Tornado, Chester

When: June 30, 1:11 PM EST to 1:13 PM EST
Where: Chester County, 1.18 mi NNW of Suplee to 1.67 mi N of Suplee
Rating: EF1
Path length: 0.68 mi
Path width: 100 yd
Property damage: $250,000
Reported by: NWS Storm Survey
Coordinates: 40.116, -75.887

An EF-1 tornado touched down in Honey Brook Township. No injuries were reported, although several homes as well as numerous trees were damaged. The tornado touched down near Given Road and moved northeast lifting near Talbotville Road. Roof panels were torn from one home. A mobile home was unseated from its moorings. Two uninjured people were trapped within the mobile home and had to be rescued by the local fire department. A barn along Talbotville Road had its roof torn off and wall damaged during the storm. Farmstands were damaged along Talbotville Road. Numerous trees were uprooted or snapped along the damage path. Debris was scattered across roadways and farm fields and included pieces of tin roofs as well as insulation. Several roads were impassable because of downed trees and power lines. The path length was approximately 0.7 of a mile, the maximum path width was estimated to be 100 yards and the estimated peak wind gust was 95 mph.

Funnel Cloud, Berks

When: June 30, 1:15 PM EST
Where: Berks County, 1.27 mi SSE of Morgantown
Reported by: Newspaper
Coordinates: 40.153, -75.890

A funnel cloud was spotted over Morgantown. The funnel cloud did not touch down and cause any wind damage.

Funnel Cloud, Lehigh

When: June 30, 1:16 PM EST
Where: Lehigh County, Fogelsville
Reported by: Trained Spotter
Coordinates: 40.580, -75.630

A trained Skywarn spotter saw a funnel cloud over Fogelsville. The funnel cloud did not touch down and cause any wind damage.

Funnel Cloud, Lehigh

When: June 30, 1:17 PM EST
Where: Lehigh County, Trexlertown
Reported by: Trained Spotter
Coordinates: 40.550, -75.620

Another Skywarn spotter saw a funnel cloud over Trexletown. The funnel cloud did not touch down and cause any wind damage.

Hail, Lehigh

When: June 30, 1:25 PM EST
Where: Lehigh County, Orefield
Measured: 1.75 in hail
Reported by: Public
Coordinates: 40.630, -75.580

A severe thunderstorm dropped golf ball size hail in Orefield.

Hail, Lehigh

When: June 30, 1:33 PM EST
Where: Lehigh County, Coplay
Measured: 0.88 in hail
Reported by: Trained Spotter
Coordinates: 40.670, -75.500

Nickel size hail fell in Coplay.

Thunderstorm Wind, Lehigh

When: June 30, 1:34 PM EST
Where: Lehigh County, 1.08 mi NW of Mechanicsville
Measured: 56 kt (64 mph) estimated gust
Reported by: Newspaper
Coordinates: 40.662, -75.543

A severe thunderstorm knocked down several very large trees along Willow Street in North Whitehall Township.

Thunderstorm Wind, Lehigh

When: June 30, 1:35 PM EST to 1:36 PM EST
Where: Lehigh County, 0.54 mi SSE of Stiles to 0.69 mi S of Coplay
Measured: 70 kt (81 mph) estimated gust
Property damage: $500,000
Reported by: NWS Storm Survey
Coordinates: 40.663, -75.515

A strong microburst caused wind damage in Whitehall Township in and near the Stiles section of the township. Because of the wind damage, a township state of emergency was declared. Numerous trees were knocked down and many roads were impassable due to the downed trees. The downed trees damaged twenty-nine homes and buildings. One building sustained major damage. The township advised residents to stay off the roads. Around 600 Pennsylvania, Power and Light customers within the township were still without power late in the evening on the 30th. Some of the most significant crop damage occurred along Columbia Street where large sections of corn fields were flattened.

Funnel Cloud, Lehigh

When: June 30, 1:35 PM EST
Where: Lehigh County, 0.89 mi S of Coplay
Reported by: Social Media
Coordinates: 40.657, -75.499

A funnel cloud sighted over Whitehall Township did not reach the ground, however a microburst still caused wind damage in the township.

Hail, Lehigh

When: June 30, 1:35 PM EST to 1:36 PM EST
Where: Lehigh County, 0.89 mi S of Coplay to Fullerton
Measured: 1.75 in hail
Property damage: $25,000
Reported by: Social Media
Coordinates: 40.657, -75.499

In addition to the wind damage, a severe thunderstorm dropped golf ball size hail in Whitehall Township. Quarter size hail also fell in the Fullerton section of the township. Siding of homes was dented by the large hail.

Thunderstorm Wind, Northampton

When: June 30, 1:35 PM EST
Where: Northampton County, 0.66 mi NNE of Siegfried
Measured: 61 kt (70 mph) estimated gust
Property damage: $100,000
Reported by: 911 Call Center
Coordinates: 40.688, -75.494

A severe thunderstorm damaged a home as well as downed numerous trees in Northampton Borough. Two people were uninjured, but trapped inside one building.

Thunderstorm Wind, Lehigh

When: June 30, 1:36 PM EST to 1:37 PM EST
Where: Lehigh County, 0.57 mi NE of West Catasauqua to 0.87 mi SE of Shoenersville
Measured: 61 kt (70 mph) estimated gust
Property damage: $250,000
Reported by: Emergency Manager
Coordinates: 40.656, -75.472

A microburst from a severe thunderstorm also affected northern parts of Catasauqua Borough. Numerous trees were knocked down. Several roadways even remained closed the next day as workers continued to remove trees and restore electric service. Hardest hit in the borough were locations from Strawberry Street northeast through Walnut and 14th Streets.

Thunderstorm Wind, Lehigh

When: June 30, 1:37 PM EST
Where: Lehigh County, Coplay
Measured: 56 kt (64 mph) estimated gust
Reported by: 911 Call Center
Coordinates: 40.670, -75.500

A severe thunderstorm knocked down numerous trees in Coplay Borough.

Hail, Northampton

When: June 30, 1:37 PM EST
Where: Northampton County, North Catasaugua
Measured: 1 in hail
Reported by: Public
Coordinates: 40.680, -75.480

A severe thunderstorm dropped quarter size hail in North Catasauqua Borough.

Thunderstorm Wind, Northampton

When: June 30, 1:39 PM EST
Where: Northampton County, 0.54 mi SW of Shoenersville
Measured: 61 kt (70 mph) estimated gust
Property damage: $200,000
Reported by: Emergency Manager
Coordinates: 40.664, -75.476

A severe thunderstorm damaged four to five homes as well as downed numerous trees in North Catasauqua Borough. No serious injuries were reported.

Thunderstorm Wind, Northampton

When: June 30, 1:40 PM EST
Where: Northampton County, 0.78 mi ENE of Northampton
Measured: 52 kt (60 mph) estimated gust
Reported by: Newspaper
Coordinates: 40.705, -75.487

A severe thunderstorm knocked down trees and wires and caused power outages in Allen Township.

Thunderstorm Wind, Northampton

When: June 30, 1:45 PM EST
Where: Northampton County, 0.89 mi ENE of Weaversville
Measured: 52 kt (60 mph) estimated gust
Reported by: Newspaper
Coordinates: 40.685, -75.414

A severe thunderstorm knocked down trees and wires and caused power outages in East Allen Township. The southbound lanes of Airport Road (Pennsylvania State Route 987) were closed near Hanoverville Road.

Thunderstorm Wind, Lehigh

When: June 30, 1:46 PM EST
Where: Lehigh County, 1.69 mi E of West Catasauqua
Measured: 53 kt (61 mph) measured gust
Reported by: ASOS
Coordinates: 40.650, -75.448

A severe thunderstorm produced a wind gust of 61 mph at the Lehigh Valley International Airport.

Thunderstorm Wind, Northampton

When: June 30, 1:47 PM EST
Where: Northampton County, 0.79 mi ENE of Prospect Hgts
Measured: 56 kt (64 mph) estimated gust
Property damage: $200,000
Reported by: Emergency Manager
Coordinates: 40.655, -75.407

A severe thunderstorm knocked down numerous trees and wires in Hanover Township. Airport Road (Pennsylvania State Route 987) was closed because of downed trees between Schoenersville Road and Orchard Lane. The township suffered the most tree damage of any municipality within the county.

Thunderstorm Wind, Northampton

When: June 30, 1:50 PM EST
Where: Northampton County, 1.02 mi WNW of Georgetown
Measured: 52 kt (60 mph) estimated gust
Reported by: Newspaper
Coordinates: 40.727, -75.347

A severe thunderstorm knocked down trees and wires and caused power outages in Upper Nazareth Township.

Thunderstorm Wind, Montgomery

When: June 30, 1:55 PM EST
Where: Montgomery County, 1.05 mi E of Stowe
Measured: 56 kt (64 mph) measured gust
Reported by: Trained Spotter
Coordinates: 40.250, -75.660

A Skywarn spotter measured a wind gust of 64 mph during a severe thunderstorm in Pottstown. Hail also fell.

Hail, Chester

When: June 30, 1:55 PM EST
Where: Chester County, Thorndale
Measured: 1.25 in hail
Reported by: Newspaper
Coordinates: 39.980, -75.730

Half dollar size hail fell over Thorndale during a severe thunderstorm.

Thunderstorm Wind, Northampton

When: June 30, 2:00 PM EST
Where: Northampton County, 0.7 mi S of Stockertown
Measured: 52 kt (60 mph) estimated gust
Reported by: Newspaper
Coordinates: 40.740, -75.248

In Tatamy Borough, Bushkill Street was closed because of downed trees caused by a severe thunderstorm. The severe thunderstorm knocked also knocked down poles along Newlins Mill Road.

Thunderstorm Wind, Northampton

When: June 30, 2:01 PM EST
Where: Northampton County, 0.63 mi SE of Easton Arpt to 0.32 mi E of Easton Arpt
Measured: 52 kt (60 mph) estimated gust
Reported by: Newspaper
Coordinates: 40.724, -75.241

A severe thunderstorm knocked down several trees and poles on the western side of Forks Township. Downed poles were reported along Bushkill Drive and Kesslerville Road.

Funnel Cloud, Chester

When: June 30, 2:17 PM EST
Where: Chester County, 0.3 mi NNW of Frazier
Reported by: Public
Coordinates: 40.034, -75.572

A funnel cloud was photographed near Pennsylvania State Route 30 in West Goshen Township. While wind damage did occur in the township, the funnel cloud itself did not reach the ground.

Thunderstorm Wind, Chester

When: June 30, 2:17 PM EST
Where: Chester County, 0.62 mi W of West Chester Arpt
Measured: 52 kt (60 mph) estimated gust
Reported by: 911 Call Center
Coordinates: 39.979, -75.592

A severe thunderstorm knocked down trees and wires in West Goshen Township.

Thunderstorm Wind, Chester

When: June 30, 2:18 PM EST
Where: Chester County, 0.98 mi SE of West Chester
Measured: 55 kt (63 mph) measured gust
Reported by: Mesonet
Coordinates: 39.961, -75.606

A severe thunderstorm produced a wind gust of 63 mph in West Chester.

Funnel Cloud, Chester

When: June 30, 2:18 PM EST
Where: Chester County, West Chester
Reported by: Newspaper
Coordinates: 39.970, -75.620

A funnel cloud was seen over West Chester. While wind damage did occur, the funnel cloud itself did not reach the ground.

Thunderstorm Wind, Chester

When: June 30, 2:37 PM EST
Where: Chester County, 1.35 mi SSE of Phoenixville
Measured: 52 kt (60 mph) measured gust
Reported by: 911 Call Center
Coordinates: 40.112, -75.510

A severe thunderstorm knocked down trees and wires in Phoenixville.

Funnel Cloud, Montgomery

When: June 30, 3:20 PM EST
Where: Montgomery County, 1.26 mi SSW of Jarrettown
Reported by: Newspaper
Coordinates: 40.153, -75.190

A funnel cloud was sighted over Upper Dublin Township. The circulation did not reach the ground and no wind damage was reported from this phenomenon.

Lightning, Delaware

When: June 30, 3:40 PM EST
Where: Delaware County, 0.62 mi ESE of Morton
Property damage: $5,000
Reported by: Newspaper
Coordinates: 39.897, -75.319

A lightning strike damaged a home's chimney on Orchard Avenue in Folsom Borough. The bricks fell to the ground, but there were no injuries.

Thunderstorm Wind, Monroe

When: June 30, 5:30 PM EST
Where: Monroe County, 1.45 mi SSE of Snydersville
Measured: 52 kt (60 mph) measured gust
Reported by: 911 Call Center
Coordinates: 40.950, -75.271

A severe thunderstorm knocked down trees onto wires in Hamilton Township. Over 1,000 homes and businesses lost power in Monroe County.

What these are

Tornado: A violently rotating column of air in contact with the ground and extending from a thunderstorm, filed with its path, width and Fujita or Enhanced Fujita rating from the damage survey.
Funnel Cloud: A rotating column of cloud extending from a thunderstorm that did not reach the ground.
Hail: Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
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.
Lightning: A lightning strike that killed, injured or caused damage.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in Pennsylvania in 2015 Every state in 2015 This day in weather history The tornado archive for Pennsylvania, 2015 Warnings in Pennsylvania, June 2015

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: 586314, 591675, 586343, 586344, 586597, 586598, 591767, 586336, 586340, 586601, 586605, 586338, 586339, 586600, 586608, 586611, 586612, 586669, 586610, 586613, 586671, 591676, 591769, 591770, 586345, 586672, 586673, 591674, 586674, 591768, 591677, 586676.