Alert archive / New Jersey / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 225, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 27, 2021, 5:38 PM EDT for Sussex County, Warren County, New Jersey; Monroe County, Pennsylvania. It was in force for 24 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 27, 2021, 5:38 PM EDT (21:38 UTC)
- Expired
- Jul 27, 2021, 6:02 PM EDT
- In force
- 24 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Sussex County, NJ, Warren County, NJ, Monroe County, PA
The radar
The Binghamton radar (KBGM), 140 km from the middle of the area, began a volume at 21:39 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 27, 5:45 PM EDT | TSTM WND DMG | Mountainhome, PA | OUTFLOW WINDS DOWNED WIRES AT OAK LN AND LOCUST LN. TIME ESTIMATED FROM RADAR. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 9.6 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2105 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 13 m²/s²
- 0-3 km storm-relative helicity
- 34 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
152
WUUS51 KPHI 272138
SVRPHI
NJC037-041-PAC089-272230-
/O.NEW.KPHI.SV.W.0225.210727T2138Z-210727T2230Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
538 PM EDT Tue Jul 27 2021
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Western Sussex County in northwestern New Jersey...
Northeastern Warren County in northwestern New Jersey...
Northeastern Monroe County in northeastern Pennsylvania...
* Until 630 PM EDT.
* At 537 PM EDT, a severe thunderstorm was located over Sterling, or
14 miles north of Mount Pocono, moving southeast at 40 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
* Locations impacted include...
Newton, Mount Pocono, Tobyhanna, Blairstown, Branchville,
Flatbrookville, Henryville, Werry Lake, Millbrook, Skytop,
Mountainhome, Canadensis, Alpine Mountain, Five Points, Pellettown,
Crandon Lakes, Echo Lake, Paradise Valley, Gouldsboro State Park
and Hainesville.
This includes the following highways...
Interstate 80 in New Jersey between mile markers 14 and 16.
Interstate 380 in Pennsylvania between mile markers 8 and 12.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Mount Holly NJ.
&&
LAT...LON 4121 7462 4090 7489 4122 7553 4124 7546
4125 7513 4115 7515 4114 7509 4108 7503
4116 7490 4127 7484
TIME...MOT...LOC 2137Z 303DEG 36KT 4132 7540
HAIL...0.75IN
WIND...60MPH
$$
MPS2 follow-up statements
413
WWUS51 KPHI 272156
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
556 PM EDT Tue Jul 27 2021
NJC037-041-PAC089-272230-
/O.CON.KPHI.SV.W.0225.000000T0000Z-210727T2230Z/
Sussex NJ-Warren NJ-Monroe PA-
556 PM EDT Tue Jul 27 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR NORTHWESTERN SUSSEX...NORTH CENTRAL WARREN AND NORTHEASTERN
MONROE COUNTIES...
At 556 PM EDT, a severe thunderstorm was located near Pecks Pond, or
14 miles northeast of Mount Pocono, moving east at 35 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Flatbrookville, Five Points, Crandon Lakes, Millbrook, Skytop,
Canadensis and Hainesville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Mount Holly NJ.
&&
LAT...LON 4124 7473 4123 7471 4101 7485 4108 7503
4122 7531 4124 7530 4125 7513 4115 7515
4114 7509 4111 7506 4109 7501 4116 7490
4127 7484
TIME...MOT...LOC 2156Z 291DEG 32KT 4128 7518
HAIL...0.75IN
WIND...60MPH
$$
MPS864
WWUS51 KPHI 272202
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
602 PM EDT Tue Jul 27 2021
NJC037-041-PAC089-272212-
/O.CAN.KPHI.SV.W.0225.000000T0000Z-210727T2230Z/
Sussex NJ-Warren NJ-Monroe PA-
602 PM EDT Tue Jul 27 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN SUSSEX...NORTH
CENTRAL WARREN AND NORTHEASTERN MONROE COUNTIES IS CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.
LAT...LON 4124 7473 4123 7471 4101 7485 4108 7503
4122 7531 4124 7530 4125 7513 4115 7515
4114 7509 4111 7506 4109 7501 4116 7490
4127 7484
TIME...MOT...LOC 2159Z 303DEG 36KT 4124 7511
$$
MPSThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 6:07 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 23 min |
| Jul 27, 6:50 PM EDT | Special Weather Statement | PHI | Morris | 25 min |
| Jul 27, 7:07 PM EDT | Special Weather Statement | PHI | Hunterdon, Somerset | 23 min |
| Jul 27, 7:25 PM EDT | Special Weather Statement | PHI | Middlesex, Monmouth, Ocean | 35 min |
| Jul 27, 7:28 PM EDT | Special Weather Statement | PHI | Hunterdon, Middlesex, Somerset | 32 min |
| Jul 27, 7:22 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 42 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2021Severe 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.