Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 237, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 1, 2021, 6:19 PM EDT for Carbon County, Monroe 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
- Aug 1, 2021, 6:19 PM EDT (22:19 UTC)
- Expired
- Aug 1, 2021, 7:00 PM EDT
- In force
- 41 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Carbon County, PA, Monroe County, PA
The radar
The Binghamton radar (KBGM), 128 km from the middle of the area, began a volume at 22:23 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, 10.3 hours before the alert went out and 225 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 899 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 30 m²/s²
- 0-3 km storm-relative helicity
- 59 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
314
WUUS51 KPHI 012219
SVRPHI
PAC025-089-012300-
/O.NEW.KPHI.SV.W.0237.210801T2219Z-210801T2300Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
619 PM EDT Sun Aug 1 2021
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Northeastern Carbon County in northeastern Pennsylvania...
Monroe County in northeastern Pennsylvania...
* Until 700 PM EDT.
* At 618 PM EDT, a severe thunderstorm was located over Bear Creek
Village, or 7 miles southeast of Wilkes-Barre, moving east at 40
mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Wind damage to
roofs, siding, trees, and power lines is possible.
* Locations impacted include...
Mount Pocono, Tobyhanna, Stormville, Henryville, Brodheadsville,
Pocono Pines, Pocono Raceway, Lake Harmony, Skytop, Tannersville,
Mountainhome, Alpine Mountain, Long Pond, Albrightsville, Sun
Valley, Arrowhead Lake, Jonas, Meckesville, Reeders and Analomink.
This includes the following highways...
Northeast Extension between mile markers 87 and 97.
Interstate 80 in Pennsylvania between mile markers 278 and 309.
Interstate 380 in Pennsylvania between mile markers 0 and 12.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4125 7518 4092 7522 4089 7527 4100 7575
4101 7573 4103 7574 4103 7576 4108 7577
4113 7569 4113 7563 4123 7554 4122 7551
4123 7549
TIME...MOT...LOC 2218Z 270DEG 35KT 4119 7576
HAIL...1.00IN
WIND...60MPH
$$
Staarmann1 follow-up statement
143
WWUS51 KPHI 012245
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
645 PM EDT Sun Aug 1 2021
PAC025-012254-
/O.CAN.KPHI.SV.W.0237.000000T0000Z-210801T2300Z/
Carbon PA-
645 PM EDT Sun Aug 1 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CARBON COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 4123 7518 4100 7521 4108 7560 4109 7560
4111 7564 4113 7563 4123 7554 4122 7550
4123 7549 4125 7518
TIME...MOT...LOC 2244Z 273DEG 31KT 4118 7549
$$
PAC089-012300-
/O.CON.KPHI.SV.W.0237.000000T0000Z-210801T2300Z/
Monroe PA-
645 PM EDT Sun Aug 1 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM EDT
FOR NORTHWESTERN MONROE COUNTY...
At 644 PM EDT, a severe thunderstorm was located over Gouldsboro
State Park, or 8 miles northwest of Mount Pocono, moving east at 35
mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Mount Pocono, Tobyhanna, Henryville, Pocono Pines, Analomink, Skytop,
Tannersville, Mountainhome, Canadensis, Alpine Mountain, Scotrun,
Blakeslee, Long Pond, Paradise Valley, Gouldsboro State Park,
Arrowhead Lake, Cresco and Arlington Heights.
This includes the following highways...
Interstate 80 in Pennsylvania between mile markers 288 and 304.
Interstate 380 in Pennsylvania between mile markers 0 and 12.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4123 7518 4100 7521 4108 7560 4109 7560
4111 7564 4113 7563 4123 7554 4122 7550
4123 7549 4125 7518
TIME...MOT...LOC 2244Z 273DEG 31KT 4118 7549
HAIL...<.75IN
WIND...60MPH
$$
StaarmannThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 1, 7:18 PM EDT | Special Weather Statement | PHI | Berks | 27 min |
| Aug 1, 7:50 PM EDT | Special Weather Statement | PHI | Berks | 40 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2021Every severe thunderstorm warning 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.