Alert archive / Pennsylvania / Special Weather Statements in 2021

Special Weather Statement, NWS Philadelphia/Mount Holly

July 2, 2021Carbon County, Pennsylvania

NWS Philadelphia/Mount Holly issued this special weather statement at Jul 2, 2021, 5:29 PM EDT for Carbon County, Pennsylvania. It was in force for 46 min. 1 report 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 2, 2021, 5:29 PM EDT (21:29 UTC)
Expired
Jul 2, 2021, 6:15 PM EDT
In force
46 min
Issued by
NWS Philadelphia/Mount Holly

County Carbon County, PA

The radar

The Philadelphia radar (KDIX), 144 km from the middle of the area, began a volume at 21:33 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 2, 5:46 PM EDTTSTM WND DMGLehighton, PAA COUPLE REPORTS OF DOWNED TREE LIMBS NEAR LEHIGHTON. TIME ESTIMATED FROM RADAR.

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

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 9.5 hours before the alert went out and 240 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 2021-07-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 51 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 2021-07-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 11 square meters per square second.19395878Sfc1 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
51 J/kg
Mixed-layer CIN
-35 J/kg
Mixed-layer LCL
836 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
11 m²/s²
0-3 km storm-relative helicity
28 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

As transmitted.

879 
WWUS81 KPHI 022129
SPSPHI

Special Weather Statement
National Weather Service Mount Holly NJ
529 PM EDT Fri Jul 2 2021

PAZ054-055-061-062-022215-
Lehigh-Monroe-Northampton-Carbon-
529 PM EDT Fri Jul 2 2021

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN LEHIGH...CARBON...
SOUTHWESTERN MONROE AND WEST CENTRAL NORTHAMPTON COUNTIES...

At 529 PM EDT, a strong thunderstorm was located over New Mahoning,
or near Lehighton, moving east at 20 mph.

Wind gusts up to 40 mph and half inch hail are possible with this
storm.

Locations impacted include...
Lehighton, Northampton, Palmerton, Jim Thorpe, Slatington,
Nesquehoning, Weatherly, Walnutport, New Mahoning, Kunkletown, Neffs,
New Tripoli, Berlinsville, Albrightsville, Emerald, Kresgeville,
Jonas, Meckesville, Danielsville and Wanamakers.

This includes Northeast Extension between mile markers 64 and 88.
 
Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

LAT...LON 4071 7540 4065 7585 4069 7586 4071 7581
      4074 7576 4083 7590 4090 7597 4105 7550
TIME...MOT...LOC 2129Z 254DEG 17KT 4079 7579 

$$

Fitzsimmons

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 1, 11:31 PM EDTSpecial Weather StatementPHISalem29 min
Jul 1, 11:40 PM EDTSevere Thunderstorm WarningPHIAtlantic, Cumberland, Gloucester, Salem39 min
Jul 2, 4:31 AM EDTAreal Flood WarningPHICumberland6 hr
Jul 2, 10:40 AM EDTAreal Flood WarningPHICumberland6 hr
Jul 2, 11:16 AM EDTAreal Flood AdvisoryPHIBurlington, Camden, Gloucester119 min
Jul 2, 12:12 PM EDTAreal Flood AdvisoryPHIGloucester, Salem97 min
Jul 2, 1:11 PM EDTFlash Flood WarningPHIGloucester, Salem59 min
Jul 2, 1:47 PM EDTAreal Flood AdvisoryPHIAtlantic, Burlington, Camden, Gloucester, Ocean, Salem116 min
Jul 2, 3:48 PM EDTSmall Craft AdvisoryPHI31 hr
Jul 2, 4:47 PM EDTSpecial Weather StatementPHISussex28 min
Jul 2, 6:42 PM EDTSpecial Weather StatementPHIWarren48 min
Jul 2, 6:53 PM EDTSevere Thunderstorm WarningPHIMorris, Sussex, Warren52 min
Jul 2, 7:25 PM EDTSevere Thunderstorm WarningPHIMorris, Sussex, Warren50 min
Jul 2, 7:33 PM EDTSpecial Weather StatementPHICumberland42 min
Jul 2, 7:41 PM EDTFlash Flood WarningPHIBurlington, Camden3 hr
Jul 2, 4:54 PM EDTFlash Flood WarningPHIMontgomery, Philadelphia5 hr
Jul 2, 5:44 PM EDTSevere Thunderstorm WarningPHICarbon, Lehigh, Monroe, Northampton46 min
Jul 1, 9:38 PM EDTSpecial Weather StatementPHIQueen Anne's, Talbot67 min
Jul 1, 10:07 PM EDTSpecial Weather StatementPHIKent38 min
Jul 1, 10:35 PM EDTSevere Thunderstorm WarningPHIKent, Queen Anne's21 min

Nearby

Special Weather Statements in Pennsylvania, 2021Every special weather statement in 2021

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.