Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 199, NWS Philadelphia/Mount Holly

July 26, 2011Monroe County, Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 26, 2011, 5:01 PM EDT for Monroe County, Pennsylvania. It was in force for 59 min. 5 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
Jul 26, 2011, 5:01 PM EDT (21:01 UTC)
Expired
Jul 26, 2011, 6:00 PM EDT
In force
59 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

County Monroe County, PA

The radar

The Binghamton radar (KBGM), 129 km from the middle of the area, began a volume at 21:02 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

TimeReportWhereRemark
Jul 26, 5:20 PM EDTTSTM WND GST 65Tobyhanna, PATHUNDERSTORM WIND GUST ESTIMATED TO BE BETWEEN 60 AND 70 MPH... KNOCKING DOWN TREE LIMBS.
Jul 26, 5:20 PM EDTHAIL 0.75Tobyhanna, PAHAIL UP TO THE SIZE OF PENNIES ACCUMULATED SOME ON THE GRASS.
Jul 26, 5:30 PM EDTHAIL 0.252 N Mount Pocono, PA
Jul 26, 5:35 PM EDTTSTM WND DMGSwiftwater, PANUMEROUS TREES DOWN IN THE SWIFTWATER AREA. DOWNED TREE BLOCKING ROUTE 314 NEAR SANOFI PASTEUR.
Jul 26, 5:50 PM EDTTSTM WND DMGSmithfield Twp, PAMULTIPLE TREES DOWN ON WIRES ON BRUSHY MOUNTAIN ROAD IN SMITHFIELD TOWNSHIP.

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

The nearest sounding before it

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 9.0 hours before the alert went out and 201 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-pSkew-T log-p diagram, Phillips Aaf/Abe, MD at 12:00Z on 2011-07-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 63 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Phillips Aaf/Abe, MD at 12:00Z on 2011-07-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -31 square meters per square second.1939587897117136Sfc1 km3 km6 km9 kmRMLM
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
63 J/kg
Mixed-layer CIN
-59 J/kg
Mixed-layer LCL
731 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
-31 m²/s²
0-3 km storm-relative helicity
-79 m²/s²
Significant tornado parameter
0.1
Supercell composite
4.8

Open this sounding in Storm Lab

The text

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

434 
WUUS51 KPHI 262101
SVRPHI
PAC089-262200-
/O.NEW.KPHI.SV.W.0199.110726T2101Z-110726T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
501 PM EDT TUE JUL 26 2011

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MONROE COUNTY IN NORTHEAST PENNSYLVANIA...
  THIS INCLUDES THE CITY OF MOUNT POCONO...

* UNTIL 600 PM EDT

* AT 457 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND   
  DAMAGING WINDS TO 60 MPH. THIS STORM WAS LOCATED 9 MILES           
  NORTHWEST OF GOULDSBORO STATE PARK...OR 10 MILES SOUTH OF          
  SCRANTON...AND MOVING SOUTHEAST AT 35 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  GOULDSBORO STATE PARK AROUND 510 PM EDT...
  TOBYHANNA AND POCONO PINES AROUND 515 PM EDT...
  POCONO PINES AROUND 520 PM EDT...
  MOUNT POCONO AND MOUNTAINHOME AROUND 525 PM EDT...
  PARADISE VALLEY...SCOTRUN...MOUNTAINHOME AND CANADENSIS AROUND 530
  PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.

&&

LAT...LON 4125 7513 4116 7516 4115 7509 4108 7502
      4103 7507 4090 7527 4114 7563 4123 7554
      4123 7552 4125 7550 4125 7531 4126 7515
TIME...MOT...LOC 2100Z 305DEG 31KT 4126 7557

$$

GORSE
2 follow-up statements
338 
WWUS51 KPHI 262117
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
517 PM EDT TUE JUL 26 2011

PAC089-262200-
/O.CON.KPHI.SV.W.0199.000000T0000Z-110726T2200Z/
MONROE PA-
517 PM EDT TUE JUL 26 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM EDT
FOR MONROE COUNTY...

AT 514 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR GOULDSBORO STATE PARK...OR 9 MILES NORTHWEST OF MOUNT
POCONO...MOVING SOUTHEAST AT 30 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  POCONO PINES BY 525 PM EDT...
  MOUNT POCONO BY 530 PM EDT...
  PARADISE VALLEY AND MOUNTAINHOME BY 535 PM EDT...
  HERNYVILLE...ALPINE MOUNTAIN AND SCOTRUN BY 540 PM EDT...
  ANALOMINK AND ARLINGTON HEIGHTS BY 550 PM EDT...
  EAST STROUDSBURG BY 555 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

THIS STORM HAS A HISTORY OF PRODUCING DAMAGING WINDS AND HAIL. SEEK 
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS!

PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.

&&

LAT...LON 4125 7513 4116 7516 4115 7509 4108 7502
      4103 7507 4090 7527 4114 7563 4123 7554
      4123 7552 4125 7550 4125 7531 4126 7515
TIME...MOT...LOC 2116Z 307DEG 27KT 4120 7547

$$

GORSE
156 
WWUS51 KPHI 262140
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
540 PM EDT TUE JUL 26 2011

PAC089-262200-
/O.CON.KPHI.SV.W.0199.000000T0000Z-110726T2200Z/
MONROE PA-
540 PM EDT TUE JUL 26 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM EDT
FOR EASTERN MONROE COUNTY...

AT 537 PM EDT...A SEVERE THUNDERSTORM WAS REPORTED CAPABLE OF
PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.
THIS STORM WAS LOCATED NEAR HERNYVILLE...OR NEAR MOUNT 
POCONO...MOVING SOUTHEAST AT 35 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  ARLINGTON HEIGHTS BY 545 PM EDT...
  EAST STROUDSBURG...STROUDSBURG AND 8 MILES NORTHEAST OF STORMVILLE
  BY 550 PM EDT...
  ECHO LAKE BY 555 PM EDT...

AT 535 PM, DAMAGING WINDS AND HAIL WAS REPORTED IN TOBYHANNA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

THIS STORM HAS A HISTORY OF PRODUCING DAMAGING WINDS AND HAIL. SEEK 
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS!

PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.

&&

LAT...LON 4110 7544 4125 7526 4126 7515 4125 7513
      4116 7516 4115 7509 4108 7502 4103 7507
      4091 7526
TIME...MOT...LOC 2139Z 306DEG 29KT 4109 7523

$$

GORSE

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 26, 4:44 PM EDTSpecial Weather StatementPHIMonroe61 min
Jul 26, 5:55 PM EDTSevere Thunderstorm WarningPHIMonroe35 min
Jul 26, 6:28 PM EDTSpecial Weather StatementPHIMonroe62 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2011Every severe thunderstorm warning in 2011

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.