Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 71, NWS Philadelphia/Mount Holly

June 30, 20155 counties in Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 30, 2015, 2:05 PM EDT for 5 counties in Pennsylvania. It was in force for 55 min. 10 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jun 30, 2015, 2:05 PM EDT (18:05 UTC)
Expired: Jun 30, 2015, 3:00 PM EDT
In force: 55 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon

Counties Berks County, PA, Carbon County, PA, Lehigh County, PA, Monroe County, PA, Northampton County, PA

The radar

The Philadelphia radar (KDIX), 129 km from the middle of the area, began a volume at 18:07 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
Jun 30, 2:16 PM EDT	FUNNEL CLOUD	Fogelsville, PA	FUNNEL CLOUD REPORTED.
Jun 30, 2:17 PM EDT	FUNNEL CLOUD	Trexlertown, PA	FUNNEL CLOUD REPORTED NEAR THE TREXLERTOWN SHOPPING CENTER.
Jun 30, 2:25 PM EDT	HAIL 1.75	Orefield, PA
Jun 30, 2:33 PM EDT	HAIL 0.88	Coplay, PA	NICKEL SIZED HAIL REPORTED IN COPLAY.
Jun 30, 2:35 PM EDT	TSTM WND DMG	Whitehall Twp, PA	NUMEROUS TREES AND WIRES REPORTED DOWN IN WHITEHALL TOWNSHIP... COPLAY AND CATASAQUA.
Jun 30, 2:36 PM EDT	TSTM WND DMG	Northampton, PA	STRUCTURE DAMAGE WITH 2 PEOPLE REPORTED TO BE TRAPPED IN THE BUILDING.
Jun 30, 2:36 PM EDT	TSTM WND DMG	Whitehall Twp, PA	NWS SURVEY TEAM OBSERVED STRAIGHT LINE WIND DAMAGE. ESTIMATED MAX WIND OF MICROBURST WAS 80 MPH.
Jun 30, 2:39 PM EDT	HAIL 1	North Catasauqua, PA
Jun 30, 2:43 PM EDT	HAIL 1.75	Whitehall Twp, PA
Jun 30, 2:44 PM EDT	TSTM WND DMG	North Catasauqua, PA	4 TO 5 HOMES DAMAGED.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 30, 1:21 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 6.1 hours before the alert went out and 143 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 600 J/kg
Mixed-layer CIN: -45 J/kg
Mixed-layer LCL: 728 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 128 m²/s²
0-3 km storm-relative helicity: 128 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 2.9

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

482 
WUUS51 KPHI 301805
SVRPHI
PAC011-025-077-089-095-301900-
/O.NEW.KPHI.SV.W.0071.150630T1805Z-150630T1900Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
205 PM EDT TUE JUN 30 2015

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ  HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN CARBON COUNTY IN NORTHEASTERN PENNSYLVANIA...
  CENTRAL NORTHAMPTON COUNTY IN EASTERN PENNSYLVANIA...
  NORTHEASTERN BERKS COUNTY IN EASTERN PENNSYLVANIA...
  SOUTHWESTERN MONROE COUNTY IN NORTHEASTERN PENNSYLVANIA...
  CENTRAL LEHIGH COUNTY IN EASTERN PENNSYLVANIA...

* UNTIL 300 PM EDT

* AT 204 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS
  OF 60 MPH. THIS STORM WAS LOCATED NEAR CLAUSSVILLE...OR 12 MILES
  WEST OF ALLENTOWN...AND MOVING NORTHEAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
  ALLENTOWN...NORTHAMPTON...NAZARETH...PALMERTON...BANGOR...
  SLATINGTON...PEN ARGYL...WIND GAP...BATH...WALNUTPORT...TOPTON...
  BELFAST...EAST BANGOR...NEW TRIPOLI...BEERSVILLE...DANIELSVILLE...
  ROSSLAND...CLAUSSVILLE...BERLINSVILLE AND BELTZVILLE STATE PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...LARGE HAIL...DEADLY
LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION...MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY
RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER
COVERS THE ROAD.

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...FREQUENT CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE
ENOUGH TO BE STRUCK BY LIGHTNING.

&&

LAT...LON 4050 7569 4059 7586 4100 7553 4085 7511
TIME...MOT...LOC 1804Z 227DEG 29KT 4060 7573 

$$

HEAVENER

3 follow-up statements

602 
WWUS51 KPHI 301821
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
221 PM EDT TUE JUN 30 2015

PAC011-301828-
/O.CAN.KPHI.SV.W.0071.000000T0000Z-150630T1900Z/
BERKS PA-
221 PM EDT TUE JUN 30 2015

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN BERKS COUNTY IS
CANCELLED...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF 
THE WARNED AREA. THEREFORE THE WARNING HAS
BEEN CANCELLED.

LAT...LON 4053 7564 4064 7576 4100 7553 4085 7511
TIME...MOT...LOC 1818Z 227DEG 29KT 4068 7562 

$$

PAC025-077-089-095-301900-
/O.CON.KPHI.SV.W.0071.000000T0000Z-150630T1900Z/
CARBON PA-NORTHAMPTON PA-MONROE PA-LEHIGH PA-
221 PM EDT TUE JUN 30 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 PM EDT
FOR SOUTHEASTERN CARBON...CENTRAL NORTHAMPTON...SOUTHWESTERN MONROE
AND CENTRAL LEHIGH COUNTIES...

AT 218 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE
OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60
MPH. THIS STORM WAS LOCATED OVER SCHNECKSVILLE...OR 9 MILES NORTHWEST
OF ALLENTOWN...MOVING NORTHEAST AT 35 MPH. A FUNNEL CLOUD HAS BEEN 
REPORTED IN LEHIGH COUNTY. SEEK SHELTER IMMEDIATELY IF IN THE PATH 
OF THIS STORM. ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY 
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.


THIS SEVERE STORM WILL BE NEAR...
  WALNUTPORT AROUND 225 PM EDT.
  NORTHAMPTON...PALMERTON AND BERLINSVILLE AROUND 230 PM EDT.
  BEERSVILLE AND DANIELSVILLE AROUND 235 PM EDT.
  BATH AROUND 240 PM EDT.
  NAZARETH...KUNKLETOWN AND KRESGEVILLE AROUND 245 PM EDT.
  BELFAST...ROSSLAND AND GILBERT AROUND 250 PM EDT.
  WIND GAP...SAYLORSBURG AND BRODHEADSVILLE AROUND 255 PM EDT.
  BANGOR...PEN ARGYL AND EAST BANGOR AROUND 300 PM EDT.

OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE
HOKENDAUQUA...EASTLAWN GARDENS...NORTH CATASAUQUA...CHAPMAN...
EFFORT...ROSETO...FIDDLETOWN...FULLERTON...CATASAUQUA AND
MERWINSBURG.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ACT QUICKLY
AND MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE...SUCH AS A
BASEMENT OR SMALL INTERIOR ROOM.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...DESTRUCTIVE HAIL...
DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY
RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER
COVERS THE ROAD.

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE
HAIL AND DAMAGING WINDS. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.

INTENSE THUNDERSTORM LINES CAN OCCASIONALLY PRODUCE BRIEF TORNADOES
AND WIDESPREAD SIGNIFICANT WIND DAMAGE. ALTHOUGH NOT IMMEDIATELY
LIKELY...FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST
FLOOR OF YOUR HOME OR BUSINESS. THIS STORM HAS THE POTENTIAL TO CAUSE
SERIOUS INJURY AND SIGNIFICANT DAMAGE TO PROPERTY.

&&

LAT...LON 4053 7564 4064 7576 4100 7553 4085 7511
TIME...MOT...LOC 1818Z 227DEG 29KT 4068 7562 

$$

MWG

462 
WWUS51 KPHI 301853
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
253 PM EDT TUE JUN 30 2015

PAC025-301901-
/O.CAN.KPHI.SV.W.0071.000000T0000Z-150630T1900Z/
CARBON PA-
253 PM EDT TUE JUN 30 2015

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CARBON COUNTY IS
CANCELLED...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF 
THE WARNED AREA. THEREFORE THE WARNING HAS
BEEN CANCELLED.

LAT...LON 4054 7563 4063 7564 4092 7531 4085 7511
TIME...MOT...LOC 1851Z 227DEG 29KT 4086 7536 

$$

PAC077-089-095-301900-
/O.CON.KPHI.SV.W.0071.000000T0000Z-150630T1900Z/
NORTHAMPTON PA-MONROE PA-LEHIGH PA-
253 PM EDT TUE JUN 30 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 PM EDT
FOR CENTRAL NORTHAMPTON...SOUTH CENTRAL MONROE AND CENTRAL LEHIGH
COUNTIES...

AT 251 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE
OF PRODUCING LARGE HAIL UP TO PING PONG BALL SIZE AND DESTRUCTIVE
WINDS IN EXCESS OF 70 MPH. THIS STORM WAS LOCATED OVER ROSSLAND...OR
14 MILES NORTHWEST OF EASTON...MOVING NORTHEAST AT 35 MPH. NUMEROUS 
WIRES HAVE BEEN REPORTED DOWN WITH THIS STORM ALONG WITH ROADWAY 
FLOODING. 

THIS SEVERE STORM WILL BE NEAR...
  WIND GAP AND SAYLORSBURG AROUND 255 PM EDT.
  BANGOR...PEN ARGYL AND EAST BANGOR AROUND 300 PM EDT.

OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE
HOKENDAUQUA...FULLERTON...EASTLAWN GARDENS...CATASAUQUA...NORTH
CATASAUQUA...CHAPMAN...ROSETO...COPLAY AND STOCKERTOWN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...DESTRUCTIVE HAIL...
DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY
RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER
COVERS THE ROAD.

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE
HAIL AND DAMAGING WINDS. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.

INTENSE THUNDERSTORM LINES CAN OCCASIONALLY PRODUCE BRIEF TORNADOES
AND WIDESPREAD SIGNIFICANT WIND DAMAGE. ALTHOUGH NOT IMMEDIATELY
LIKELY...FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST
FLOOR OF YOUR HOME OR BUSINESS. THIS STORM HAS THE POTENTIAL TO CAUSE
SERIOUS INJURY AND SIGNIFICANT DAMAGE TO PROPERTY.

&&

LAT...LON 4054 7563 4063 7564 4092 7531 4085 7511
TIME...MOT...LOC 1851Z 227DEG 29KT 4086 7536 

$$

MWG

747 
WWUS51 KPHI 301902
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
302 PM EDT TUE JUN 30 2015

PAC077-089-095-301912-
/O.EXP.KPHI.SV.W.0071.000000T0000Z-150630T1900Z/
NORTHAMPTON PA-MONROE PA-LEHIGH PA-
302 PM EDT TUE JUN 30 2015

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL NORTHAMPTON...SOUTH
CENTRAL MONROE AND CENTRAL LEHIGH COUNTIES HAS EXPIRED...
        
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE AREA.
THEREFORE THE WARNING HAS BEEN ALLOWED TO EXPIRE.

LAT...LON 4054 7563 4063 7564 4092 7531 4085 7511
TIME...MOT...LOC 1900Z 227DEG 29KT 4086 7536 

$$

MWG

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 30, 10:01 AM EDT	Areal Flood Advisory	PHI	Carbon, Monroe	4 hr
Jun 30, 12:37 PM EDT	Areal Flood Advisory	PHI	Berks	4 hr
Jun 30, 12:47 PM EDT	Special Weather Statement	PHI	Berks	43 min
Jun 30, 1:08 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Lehigh	52 min
Jun 30, 1:47 PM EDT	Special Weather Statement	PHI	Lehigh	43 min
Jun 30, 1:48 PM EDT	Flash Flood Warning	PHI	Berks	4 hr
Jun 30, 1:55 PM EDT	Special Weather Statement	PHI	Chester	50 min
Jun 30, 2:00 PM EDT	Tornado Warning	PHI	Berks, Chester	30 min
Jun 30, 2:13 PM EDT	Tornado Warning	PHI	Lehigh	32 min
Jun 30, 2:19 PM EDT	Special Weather Statement	PHI	Chester	26 min
Jun 30, 2:26 PM EDT	Areal Flood Advisory	PHI	Berks, Chester	4 hr
Jun 30, 2:34 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Chester, Montgomery	56 min
Jun 30, 2:41 PM EDT	Severe Thunderstorm Warning	PHI	Chester	49 min
Jun 30, 2:42 PM EDT	Tornado Warning	PHI	Lehigh, Northampton	33 min
Jun 30, 2:48 PM EDT	Special Weather Statement	PHI	Chester	57 min
Jun 30, 2:52 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware, Montgomery	38 min
Jun 30, 2:55 PM EDT	Flash Flood Warning	PHI	Berks, Lehigh, Northampton	4 hr
Jun 30, 3:00 PM EDT	Areal Flood Advisory	PHI	Bucks, Monroe, Northampton	4 hr
Jun 30, 3:00 PM EDT	Severe Thunderstorm Warning	PHI	Lehigh, Northampton	60 min
Jun 30, 3:08 PM EDT	Areal Flood Advisory	PHI	Chester	4 hr
Jun 30, 3:22 PM EDT	Tornado Warning	PHI	Chester, Delaware, Montgomery	23 min
Jun 30, 3:25 PM EDT	Severe Thunderstorm Warning	PHI	Chester	37 min
Jun 30, 3:31 PM EDT	Special Weather Statement	PHI	Lehigh	44 min
Jun 30, 3:37 PM EDT	Areal Flood Advisory	PHI	Carbon, Lehigh, Monroe, Northampton	4 hr
Jun 30, 3:43 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware, Philadelphia	47 min
Jun 30, 3:45 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	45 min
Jun 30, 3:47 PM EDT	Severe Thunderstorm Warning	PHI	Northampton	43 min
Jun 30, 3:54 PM EDT	Flash Flood Watch	PHI	Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more	13 hr
Jun 30, 3:57 PM EDT	Areal Flood Advisory	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	4 hr
Jun 30, 4:22 PM EDT	Special Weather Statement	PHI	Monroe	23 min
Jun 30, 4:29 PM EDT	Special Weather Statement	PHI	Delaware, Philadelphia	31 min
Jun 30, 4:31 PM EDT	Special Weather Statement	PHI	Carbon	29 min
Jun 30, 4:58 PM EDT	Areal Flood Advisory	PHI	Delaware, Montgomery, Philadelphia	3 hr
Jun 30, 4:59 PM EDT	Special Weather Statement	PHI	Philadelphia	61 min
Jun 30, 5:03 PM EDT	Special Weather Statement	PHI	Monroe	27 min
Jun 30, 5:51 PM EDT	Special Weather Statement	PHI	Monroe	24 min
Jun 30, 6:03 PM EDT	Flash Flood Warning	PHI	Carbon, Monroe	11 hr
Jun 30, 6:28 PM EDT	Severe Thunderstorm Warning	PHI	Monroe, Northampton	47 min
Jun 30, 7:13 PM EDT	Severe Thunderstorm Warning	PHI	Monroe	62 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2015 Every severe thunderstorm warning in 2015

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.