Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 63, NWS Philadelphia/Mount Holly

June 14, 2008Monroe County, Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 14, 2008, 3:02 PM EDT for Monroe County, Pennsylvania. It was in force for 58 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 14, 2008, 3:02 PM EDT (19:02 UTC)
Expired
Jun 14, 2008, 4:00 PM EDT
In force
58 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

County Monroe County, PA

The radar

The Binghamton radar (KBGM), 134 km from the middle of the area, began a volume at 19:03 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.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 7.0 hours before the alert went out and 196 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, Brookhaven, NY at 12:00Z on 2008-06-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 29 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, Brookhaven, NY at 12:00Z on 2008-06-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 42 square meters per square second.1939Sfc1 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
29 J/kg
Mixed-layer CIN
-177 J/kg
Mixed-layer LCL
1159 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
42 m²/s²
0-3 km storm-relative helicity
72 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.

000 
WUUS51 KPHI 141902
SVRPHI
PAC089-142000-
/O.NEW.KPHI.SV.W.0063.080614T1902Z-080614T2000Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
302 PM EDT SAT JUN 14 2008

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN MONROE COUNTY IN NORTHEAST PENNSYLVANIA...

* UNTIL 400 PM EDT

* AT 257 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS TO ABOUT 60 MPH.  THIS STORM WAS LOCATED NEAR
  PARADISE VALLEY...OR ABOUT 28 MILES SOUTHEAST OF SCRANTON...AND
  MOVING EAST AT 8 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  AFFECT EASTERN MONROE COUNTY AT 320 PM

THUNDERSTORMS ARE CAPABLE OF PRODUCING HEAVY RAINFALL WHICH MAY
RESULT IN LOCALIZED AREAS OF FLOODING. DO NOT DRIVE IN AREAS WHERE
WATER IS CROSSING THE ROAD. A FLASH FLOOD WARNING IS IN EFFECT FOR
THE SAME AREA.

IF YOU SEE THREATENING WEATHER, HEAD INDOORS. DO NOT DRIVE ON FLOODED
ROADWAYS.

LAT...LON 4118 7515 4116 7515 4115 7509 4112 7506
      4104 7509 4106 7538 4124 7533 4126 7513
TIME...MOT...LOC 1902Z 263DEG 7KT 4114 7524

$$

TFG
1 follow-up statement
000 
WWUS51 KPHI 141925
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
324 PM EDT SAT JUN 14 2008

PAC089-142000-
/O.CON.KPHI.SV.W.0063.000000T0000Z-080614T2000Z/
MONROE PA-
324 PM EDT SAT JUN 14 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT
FOR NORTHEASTERN MONROE COUNTY...

AT 319 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS UP TO 60 MPH.  THIS STORM WAS
LOCATED NEAR ALPINE MOUNTAIN...OR 30 MILES SOUTHEAST OF SCRANTON...
MOVING EAST AT 8 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  EASTERN PRICE AND NORTHERN MIDDLE SMITHFIELD TOWNSHIP AT 340 PM EDT

IF ON OR NEAR ANY LAKES...GET OUT OF THE WATER AND MOVE
INDOORS OR INSIDE A VEHICLE. REMEMBER...LIGHTNING CAN STRIKE OUT TO
15 MILES FROM THE PARENT THUNDERSTORM. IF YOU CAN HEAR THUNDER...YOU
ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE TO SAFE SHELTER NOW.
DONT BE CAUGHT ON THE WATER IN A THUNDERSTORM

FLASH FLOODING IS ALSO LIKELY IN THIS AREA, DO NOT DRIVE AROUND 
BARRICADES OR FLOODED ROADWAYS.

LAT...LON 4116 7515 4115 7509 4112 7506 4109 7508
      4105 7527 4124 7526 4126 7513
TIME...MOT...LOC 1924Z 263DEG 7KT 4114 7518

$$

TFG

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 14, 2:23 PM EDTFlash Flood WarningPHIMonroe3 hr
Jun 14, 4:26 PM EDTSevere Thunderstorm WarningPHICarbon, Monroe, Northampton64 min
Jun 14, 4:49 PM EDTFlash Flood WarningPHICarbon5 hr
Jun 14, 5:07 PM EDTSevere Thunderstorm WarningPHICarbon, Monroe53 min
Jun 14, 5:18 PM EDTSevere Thunderstorm WarningPHICarbon, Monroe57 min
Jun 14, 6:15 PM EDTSevere Thunderstorm WarningPHIChester75 min
Jun 14, 6:28 PM EDTFlash Flood WarningPHIChester60 min
Jun 14, 6:48 PM EDTFlash Flood WarningPHICarbon, Monroe3 hr
Jun 14, 7:05 PM EDTSevere Thunderstorm WarningPHIBerks, Chester, Montgomery70 min
Jun 14, 7:42 PM EDTSevere Thunderstorm WarningPHIBucks, Chester, Montgomery63 min
Jun 14, 7:56 PM EDTSevere Thunderstorm WarningPHIBucks, Delaware, Philadelphia79 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2008Every severe thunderstorm warning in 2008

Sources

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