Alert archive / Pennsylvania / Special Weather Statements in 2021

Special Weather Statement, NWS Philadelphia/Mount Holly

December 2, 2021Carbon County, Pennsylvania

NWS Philadelphia/Mount Holly issued this special weather statement at Dec 2, 2021, 8:19 PM EST for Carbon County, Pennsylvania. It was in force for 41 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
Dec 2, 2021, 8:19 PM EST (01:19 UTC)
Expired
Dec 2, 2021, 9:00 PM EST
In force
41 min
Issued by
NWS Philadelphia/Mount Holly
Hail
0.25 in
Wind
40

County Carbon County, PA

The radar

The Binghamton radar (KBGM), 131 km from the middle of the area, began a volume at 01:20 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, 1.3 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 00:00Z on 2021-12-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2021-12-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 353 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1175 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
353 m²/s²
0-3 km storm-relative helicity
345 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

099 
WWUS81 KPHI 030119
SPSPHI

Special Weather Statement
National Weather Service Mount Holly NJ
819 PM EST Thu Dec 2 2021
 
PAZ054-055-030200-
Monroe PA-Carbon PA-
819 PM EST Thu Dec 2 2021

...Strong showers with embedded thunderstorms will impact portions 
of central Carbon and southwestern Monroe Counties through 900 PM 
EST...

At 817 PM EST, Doppler radar was tracking strong thunderstorms along
a line extending from near Bear Creek to near East Berwick. Movement
was east at 45 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...
Jim Thorpe, Weatherly, Brodheadsville, Lake Harmony, Blakeslee, Penn
Forest Reservoir, Albrightsville, Christmans, Sun Valley, Jonas,
Meckesville, Beaver Meadows, Effort, Merwinsburg and Tresckow.

This includes the following highways...
 Northeast Extension between mile markers 81 and 97.
 Interstate 80 in Pennsylvania between mile markers 277 and 288.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

&&

LAT...LON 4112 7565 4112 7564 4093 7531 4087 7595
      4091 7599 4098 7582 4101 7573 4103 7574
      4105 7577 4109 7577 4111 7571 4113 7569
TIME...MOT...LOC 0117Z 287DEG 41KT 4115 7576 4109 7622 

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
Dec 2, 8:00 PM ESTSpecial Weather StatementPHISussex45 min
Dec 2, 8:48 PM ESTSpecial Weather StatementPHIMorris, Sussex, Warren42 min
Dec 2, 9:47 PM ESTSpecial Weather StatementPHIHunterdon, Middlesex, Morris, Somerset, Warren43 min
Dec 2, 10:29 PM ESTSpecial Weather StatementPHIMercer, Middlesex, Monmouth46 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.