Alert archive / Pennsylvania / Special Weather Statements in 2012

Special Weather Statement, NWS Philadelphia/Mount Holly

May 4, 2012Carbon County, Pennsylvania

NWS Philadelphia/Mount Holly issued this special weather statement at May 4, 2012, 4:45 PM EDT for Carbon County, 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: May 4, 2012, 4:45 PM EDT (20:45 UTC)
Expired: May 4, 2012, 5:30 PM EDT
In force: 45 min
Issued by: NWS Philadelphia/Mount Holly

County Carbon County, PA

The radar

The Binghamton radar (KBGM), 150 km from the middle of the area, began a volume at 20:47 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, 8.8 hours before the alert went out and 244 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 538 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 34 m²/s²
0-3 km storm-relative helicity: 55 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

170 
WWUS81 KPHI 042045
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
445 PM EDT FRI MAY 4 2012

PAZ054-042130-
CARBON PA-
445 PM EDT FRI MAY 4 2012

...A STRONG THUNDERSTORM WILL AFFECT CARBON COUNTY...

AT 440 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 13 MILES NORTHWEST OF LEHIGHTON...MOVING
SOUTHEAST AT 25 MPH. THE THUNDERSTORM WILL BE NEAR NESQUEHONING...
SUMMIT HILL AROUND 500 PM...NEW MAHONING AND LEHIGHTON AROUND 515 PM.

HEAVY RAIN WILL FALL FROM THIS STORM...AND WILL CAUSE WATER TO POND 
ON ROADS.

WIND GUSTS TO 40 MPH ARE POSSIBLE WITH THIS STORM.

LAT...LON 4099 7578 4080 7557 4079 7560 4078 7568
      4074 7575 4073 7577 4084 7592 4091 7600
      4099 7583

$$

KRUZDLO

The office that day

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

Issued	Product	Office	Counties	Lasted
May 4, 4:21 AM EDT	Special Weather Statement	PHI	Sussex	54 min
May 4, 5:41 AM EDT	Special Weather Statement	PHI	Morris, Sussex, Warren	64 min
May 4, 6:07 PM EDT	Special Weather Statement	PHI	Sussex, Warren	113 min
May 4, 4:37 AM EDT	Special Weather Statement	PHI	Carbon, Monroe	53 min
May 4, 1:02 AM EDT	Special Weather Statement	PHI	Caroline, Queen Anne's, Talbot	58 min
May 4, 12:56 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Queen Anne's, Talbot	15 min
May 4, 1:34 PM EDT	Special Weather Statement	PHI	Talbot	26 min
May 4, 2:07 PM EDT	Special Weather Statement	PHI	Caroline	38 min

Nearby

Special Weather Statements in Pennsylvania, 2012 Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.