Alert archive / Pennsylvania / Special Weather Statements in 2021
Special Weather Statement, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this special weather statement at Aug 12, 2021, 3:38 PM EDT for Carbon County, Pennsylvania. It was in force for 52 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 12, 2021, 3:38 PM EDT (19:38 UTC)
- Expired
- Aug 12, 2021, 4:30 PM EDT
- In force
- 52 min
- Issued by
- NWS Philadelphia/Mount Holly
- Hail
- 0.25 in
- Wind
- 40
County Carbon County, PA
The radar
The Binghamton radar (KBGM), 149 km from the middle of the area, began a volume at 19:38 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, 7.6 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.
- Mixed-layer CAPE
- 278 J/kg
- Mixed-layer CIN
- -162 J/kg
- Mixed-layer LCL
- 1400 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- -82 m²/s²
- 0-3 km storm-relative helicity
- -47 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
880
WWUS81 KPHI 121938
SPSPHI
Special Weather Statement
National Weather Service Mount Holly NJ
338 PM EDT Thu Aug 12 2021
PAZ054-055-061-062-122030-
Lehigh PA-Monroe PA-Northampton PA-Carbon PA-
338 PM EDT Thu Aug 12 2021
...A strong thunderstorm will impact portions of northwestern Lehigh,
Carbon, southwestern Monroe and west central Northampton Counties
through 430 PM EDT...
At 337 PM EDT, Doppler radar was tracking a strong thunderstorm over
Oneida, or 8 miles north of Mahanoy City, moving east at 35 mph.
HAZARD...Winds in excess of 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, Jim Thorpe, Slatington,
Nesquehoning, Weatherly, Walnutport, Brodheadsville, New Mahoning,
Kunkletown, Neffs, Gilbert, Berlinsville, Emerald, Kresgeville,
Jonas, Danielsville, Beltzville State Park and Penn Forest Reservoir.
This includes Northeast Extension between mile markers 64 and 87.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4096 7586 4098 7584 4098 7580 4100 7575
4098 7537 4067 7550 4068 7572 4071 7581
4074 7576 4083 7590 4091 7599
TIME...MOT...LOC 1937Z 281DEG 31KT 4093 7613
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH
$$
JEOThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 11, 8:10 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Morris, Sussex, Warren | 35 min |
| Aug 11, 10:54 PM EDT | Areal Flood Warning | PHI | Morris, Warren | 3 hr |
| Aug 12, 3:33 PM EDT | Severe Thunderstorm Warning | PHI | Sussex, Warren | 57 min |
| Aug 12, 4:11 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Sussex, Warren | 34 min |
| Aug 12, 2:56 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 49 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.