Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 125, NWS Philadelphia/Mount Holly

July 26, 2012Monroe County, Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 26, 2012, 6:03 PM EDT for Monroe County, Pennsylvania. It was in force for 42 min. 2 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, 2012, 6:03 PM EDT (22:03 UTC)
Expired: Jul 26, 2012, 6:45 PM EDT
In force: 42 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon

County Monroe County, PA

The radar

The Binghamton radar (KBGM), 140 km from the middle of the area, began a volume at 22:04 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
Jul 26, 6:09 PM EDT	TSTM WND GST 52	Mount Pocono, PA
Jul 26, 6:45 PM EDT	TSTM WND DMG	Delaware Water Gap, PA	AT LEAST 1 TRACTOR TRAILER BLOWN OVER ON I-80 AT PA NJ STATE LINE.

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
Jul 26, 3:57 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 10.1 hours before the alert went out and 190 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: 59 J/kg
Mixed-layer CIN: -282 J/kg
Mixed-layer LCL: 1017 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 238 m²/s²
0-3 km storm-relative helicity: 239 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

306 
WUUS51 KPHI 262203
SVRPHI
PAC089-262245-
/O.NEW.KPHI.SV.W.0125.120726T2203Z-120726T2245Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
603 PM EDT THU JUL 26 2012

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 645 PM EDT

* AT 600 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH. THIS STORM WAS LOCATED OVER EASTERN CARBON COUNTY AND
  EASTERN LUZERNE COUNTY...AND MOVING EAST AT 45 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  SUN VALLEY...LONG POND AND GILBERT AROUND 610 PM EDT...
  MCMICHAEL...REEDERS AND BRODHEADSVILLE AROUND 615 PM EDT...
  TANNERSVILLE AND SCOTRUN AROUND 620 PM EDT...
  STORMVILLE AND ANALOMINK AROUND 625 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DOPPLER RADAR HAS INDICATED SOME ROTATION WITHIN THIS STORM. WHILE
NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A TORNADO IS
SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

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.

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.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT 
THURSDAY EVENING FOR EASTERN PENNSYLVANIA.

&&

LAT...LON 4115 7514 4115 7508 4109 7503 4108 7497
      4099 7513 4095 7514 4093 7521 4087 7528
      4081 7547 4095 7557 4099 7550 4112 7565
      4121 7557 4124 7551 4126 7513
TIME...MOT...LOC 2201Z 275DEG 38KT 4100 7557

$$

IOVINO

1 follow-up statement

483 
WWUS51 KPHI 262224
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
624 PM EDT THU JUL 26 2012

PAC089-262245-
/O.CON.KPHI.SV.W.0125.000000T0000Z-120726T2245Z/
MONROE PA-
624 PM EDT THU JUL 26 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT
FOR MONROE COUNTY...

AT 622 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR TANNERSVILLE...MOVING 
EAST AT 45 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  ANALOMINK...ARLINGTON HEIGHTS...EAST STROUDSBURG AND STROUDSBURG BY
  630 PM EDT...
  MARSHALLS CREEK...SHAWNEE AND DELAWARE WATER GAP BY 635 PM EDT...
  HIDDEN LAKE AND WERRY LAKE BY 640 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

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.

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.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT 
THURSDAY EVENING FOR EASTERN PENNSYLVANIA.

&&

LAT...LON 4115 7514 4115 7508 4109 7503 4108 7498
      4099 7513 4095 7514 4093 7521 4087 7528
      4082 7547 4095 7557 4098 7550 4125 7530
      4126 7513
TIME...MOT...LOC 2224Z 269DEG 36KT 4103 7528

$$

IOVINO

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 26, 7:41 AM EDT	Special Weather Statement	PHI	Carbon, Lehigh, Monroe, Northampton	64 min
Jul 26, 5:21 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Monroe	54 min
Jul 26, 5:46 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Lehigh, Northampton	74 min
Jul 26, 6:10 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Lehigh, Northampton	95 min
Jul 26, 6:22 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	83 min
Jul 26, 6:46 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Chester, Delaware, Montgomery, Philadelphia	89 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2012 Every severe thunderstorm warning in 2012

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.