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 Jul 29, 2021, 11:25 PM EDT for Pike County, Pennsylvania. It was in force for 35 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
- Jul 29, 2021, 11:25 PM EDT (03:25 UTC)
- Expired
- Jul 30, 2021, 12:00 AM EDT
- In force
- 35 min
- Issued by
- NWS Philadelphia/Mount Holly
County Pike County, PA
The radar
The Binghamton radar (KBGM), 138 km from the middle of the area, began a volume at 03:26 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, 3.4 hours before the alert went out and 184 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
- 635 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 502 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 381 m²/s²
- 0-3 km storm-relative helicity
- 515 m²/s²
- Significant tornado parameter
- 1.3
- Supercell composite
- 5.0
The text
As transmitted.
227
WWUS81 KPHI 300325
SPSPHI
Special Weather Statement
National Weather Service Mount Holly NJ
1125 PM EDT Thu Jul 29 2021
NJZ001-PAZ055-300400-
Sussex-Monroe-
1125 PM EDT Thu Jul 29 2021
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTHWESTERN SUSSEX AND
NORTHERN MONROE COUNTIES...
At 1124 PM EDT, radar indicated strong thunderstorms were located
along a line extending from Greeley to Greentown to Old Forge.
Movement was southeast at 30 mph.
Wind gusts up to 40 mph are possible with these storms.
Locations impacted include...
Montague, Mount Pocono, Tobyhanna, High Point, Skytop, Mountainhome,
Canadensis, Alpine Mountain, Paradise Valley, Gouldsboro State Park,
Arrowhead Lake, Hainesville and Cresco.
This includes Interstate 380 in Pennsylvania between mile markers 4
and 13.
If outdoors, consider seeking shelter inside a building.
LAT...LON 4129 7454 4109 7499 4111 7503 4109 7504
4109 7500 4108 7503 4115 7560 4116 7560
4123 7554 4125 7513 4115 7515 4114 7509
4111 7501 4112 7495 4116 7490 4127 7484
4135 7475 4136 7469
TIME...MOT...LOC 0324Z 320DEG 24KT 4143 7502 4129 7532 4136 7577
$$
MPSThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 29, 8:03 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Monmouth, Ocean | 57 min |
| Jul 29, 8:03 PM EDT | Tornado Warning | PHI | Ocean | 27 min |
| Jul 29, 8:19 PM EDT | Flash Flood Warning | PHI | Burlington, Monmouth, Ocean | 4 hr |
| Jul 29, 8:39 PM EDT | Tornado Warning | PHI | Burlington, Ocean | 51 min |
| Jul 29, 8:42 PM EDT | Tornado Warning | PHI | Monmouth | 19 min |
| Jul 29, 8:43 PM EDT | Flash Flood Warning | PHI | Monmouth, Ocean | 3 hr |
| Jul 29, 9:15 PM EDT | Special Marine Warning | PHI | 2 hr |
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.