Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 51, NWS Philadelphia/Mount Holly

June 8, 20084 counties in Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 8, 2008, 10:27 PM EDT for 4 counties in Pennsylvania. It was in force for 45 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 8, 2008, 10:27 PM EDT (02:27 UTC)
Expired
Jun 8, 2008, 11:12 PM EDT
In force
45 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

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

The radar

The Binghamton radar (KBGM), 142 km from the middle of the area, began a volume at 02:28 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 00:00Z, 2.5 hours before the alert went out and 235 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 00:00Z on 2008-06-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 606 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 00:00Z on 2008-06-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 182 square meters per square second.193958Sfc1 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
606 J/kg
Mixed-layer CIN
-163 J/kg
Mixed-layer LCL
1345 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
182 m²/s²
0-3 km storm-relative helicity
244 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 090228
SVRPHI
PAC025-077-089-095-090330-
/O.NEW.KPHI.SV.W.0051.080609T0227Z-080609T0330Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1027 PM EDT SUN JUN 8 2008

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

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

* UNTIL 1130 PM EDT

* AT 1025 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  CHRISTMANS...OR ABOUT 18 MILES SOUTHEAST OF WILKES-BARRE...AND
  MOVING SOUTHEAST AT 32 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  CHRISTMANS BY 1035 PM...
  BELTZVILLE STATE PARK AND PENN FOREST RESERVOIR BY 1045 PM...
  PALMERTON BY 1050 PM...
  DANIELSVILLE AND BERLINSVILLE BY 1100 PM...
  BEERSVILLE BY 1105 PM...
  NORTHAMPTON BY 1110 PM...

LAT...LON 4111 7561 4077 7519 4056 7551 4091 7593
      4099 7580 4100 7576 4101 7575 4102 7575
TIME...MOT...LOC 0227Z 321DEG 28KT 4099 7572

$$

KRUZDLO
1 follow-up statement
000 
WWUS51 KPHI 090312
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1110 PM EDT SUN JUN 8 2008

PAC025-077-089-095-090320-
/O.CAN.KPHI.SV.W.0051.000000T0000Z-080609T0330Z/
LEHIGH PA-NORTHAMPTON PA-CARBON PA-MONROE PA-
1110 PM EDT SUN JUN 8 2008

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN MONROE...
CARBON...NORTHAMPTON AND NORTHEASTERN LEHIGH COUNTIES IS CANCELLED...

THE THUNDERSTORMS IN THE WARNED AREA HAVE WEAKENED. BECAUSE OF 
THIS...THE SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED. 

LAT...LON 4111 7561 4077 7519 4056 7551 4091 7593
      4099 7580 4100 7576 4101 7575 4102 7575
TIME...MOT...LOC 0310Z 321DEG 28KT 4073 7544

$$

KRUZDLO

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.