Alert archive / New Jersey / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 236, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 27, 2026, 4:38 PM EDT for Hunterdon County, Somerset County, New Jersey. It was in force for 24 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 27, 2026, 4:38 PM EDT (20:38 UTC)
- Expired
- Jul 27, 2026, 5:02 PM EDT
- In force
- 24 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Hunterdon County, NJ, Somerset County, NJ
The radar
The Philadelphia radar (KDIX), 72 km from the middle of the area, began a volume at 20:40 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, 8.6 hours before the alert went out and 169 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
- 199 J/kg
- Mixed-layer CIN
- -62 J/kg
- Mixed-layer LCL
- 928 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 27 m²/s²
- 0-3 km storm-relative helicity
- 74 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
761
WUUS51 KPHI 272038
SVRPHI
NJC019-035-272130-
/O.NEW.KPHI.SV.W.0236.260727T2038Z-260727T2130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
438 PM EDT Mon Jul 27 2026
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
East central Hunterdon County in northwestern New Jersey...
West central Somerset County in northern New Jersey...
* Until 530 PM EDT.
* At 437 PM EDT, a severe thunderstorm was located over Flemington,
or 11 miles west of Somerville, and is nearly stationary.
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...
Flemington and Cloverhill.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4045 7485 4054 7490 4062 7480 4049 7469
TIME...MOT...LOC 2037Z 242DEG 3KT 4052 7482
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Guzzo1 follow-up statement
185 WWUS51 KPHI 272102 SVSPHI Severe Weather Statement National Weather Service Mount Holly NJ 502 PM EDT Mon Jul 27 2026 NJC019-035-272111- /O.CAN.KPHI.SV.W.0236.000000T0000Z-260727T2130Z/ Hunterdon NJ-Somerset NJ- 502 PM EDT Mon Jul 27 2026 ...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL HUNTERDON AND WEST CENTRAL SOMERSET COUNTIES IS CANCELLED... The storm which prompted the warning has weakened below severe limits, and no longer poses an immediate threat to life or property. Therefore, the warning has been cancelled. LAT...LON 4045 7485 4054 7490 4062 7480 4049 7469 TIME...MOT...LOC 2058Z 242DEG 3KT 4053 7480 $$ Guzzo
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 2:13 AM EDT | Small Craft Advisory | PHI | 52 hr | |
| Jul 27, 3:50 AM EDT | Special Marine Warning | PHI | 85 min | |
| Jul 27, 1:57 PM EDT | Special Marine Warning | PHI | 44 min | |
| Jul 27, 2:15 PM EDT | Flood Watch | PHI | Burlington, Camden, Gloucester, Hunterdon, Mercer, Middlesex and 7 more | 38 hr |
| Jul 27, 2:57 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden | 48 min |
| Jul 27, 3:50 PM EDT | Severe Thunderstorm Warning | PHI | Warren | 40 min |
| Jul 27, 4:21 PM EDT | Severe Thunderstorm Warning | PHI | Mercer | 39 min |
| Jul 27, 4:32 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden | 31 min |
| Jul 27, 5:06 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex | 39 min |
| Jul 27, 5:14 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden | 31 min |
| Jul 27, 5:43 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex | 27 min |
| Jul 27, 5:49 PM EDT | Flash Flood Warning | PHI | Middlesex | 3 hr |
| Jul 27, 6:06 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Camden, Gloucester | 39 min |
| Jul 27, 6:07 PM EDT | Flash Flood Warning | PHI | Atlantic | 4 hr |
| Jul 27, 6:28 PM EDT | Severe Thunderstorm Warning | PHI | Camden, Gloucester | 47 min |
| Jul 27, 6:59 PM EDT | Flash Flood Warning | PHI | Gloucester | 2 hr |
| Jul 27, 7:12 PM EDT | Severe Thunderstorm Warning | PHI | Camden, Gloucester | 15 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2026Every severe thunderstorm warning in 2026
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.