Alert archive / Pennsylvania / Special Weather Statements in 2022

Special Weather Statement, NWS Philadelphia/Mount Holly

August 7, 2022Northampton County, Pennsylvania

NWS Philadelphia/Mount Holly issued this special weather statement at Aug 7, 2022, 6:48 PM EDT for Northampton County, Pennsylvania. It was in force for 42 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
Aug 7, 2022, 6:48 PM EDT (22:48 UTC)
Expired
Aug 7, 2022, 7:30 PM EDT
In force
42 min
Issued by
NWS Philadelphia/Mount Holly
Hail
0.25 in
Wind
40

County Northampton County, PA

The radar

The Philadelphia radar (KDIX), 142 km from the middle of the area, began a volume at 22:48 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, 10.8 hours before the alert went out and 241 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 2022-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1119 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 2022-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -63 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
1119 J/kg
Mixed-layer CIN
-50 J/kg
Mixed-layer LCL
827 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-63 m²/s²
0-3 km storm-relative helicity
-64 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

520 
WWUS81 KPHI 072248
SPSPHI

Special Weather Statement
National Weather Service Mount Holly NJ
648 PM EDT Sun Aug 7 2022
 
PAZ054-055-061-062-072330-
Lehigh PA-Monroe PA-Northampton PA-Carbon PA-
648 PM EDT Sun Aug 7 2022

...Strong thunderstorms will impact portions of northwestern Lehigh,
southeastern Carbon, south central Monroe and northwestern
Northampton Counties through 730 PM EDT...

At 648 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from Palmerton to Snyders. Movement was east at 25
mph.

HAZARD...Wind gusts up to 40 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around 
         unsecured objects. Minor damage to outdoor objects is 
         possible.

Locations impacted include...
Lehighton, Northampton, Palmerton, Slatington, Pen Argyl, Wind Gap,
Walnutport, Kunkletown, Neffs, New Tripoli, Rossland, Berlinsville,
Emerald, Danielsville, Wanamakers, Beltzville State Park,
Saylorsburg, Jordan Valley, Beersville and Schnecksville.

This includes Northeast Extension between mile markers 62 and 78.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

&&

LAT...LON 4069 7587 4070 7583 4074 7576 4077 7581
      4088 7563 4092 7518 4065 7558 4065 7586
      4068 7589
TIME...MOT...LOC 2248Z 257DEG 20KT 4082 7561 4071 7583 

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

$$

Staarmann

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 7, 2:07 PM EDTSpecial Weather StatementPHIMiddlesex23 min
Aug 7, 4:11 PM EDTSmall Craft AdvisoryPHI36 hr
Aug 7, 5:01 PM EDTSpecial Weather StatementPHICarbon44 min
Aug 7, 5:42 PM EDTSpecial Weather StatementPHIMonroe48 min
Aug 7, 7:24 PM EDTSpecial Weather StatementPHINorthampton51 min

Nearby

Special Weather Statements in Pennsylvania, 2022Every special weather statement in 2022

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.