Alert archive / New Jersey / Severe Thunderstorm Warnings in 2024
Severe Thunderstorm Warning 39, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 22, 2024, 6:39 PM EDT for Morris County, New Jersey. It was in force for 36 min. 3 reports 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
- Jun 22, 2024, 6:39 PM EDT (22:39 UTC)
- Expired
- Jun 22, 2024, 7:15 PM EDT
- In force
- 36 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Morris County, NJ
The radar
The Philadelphia radar (KDIX), 103 km from the middle of the area, began a volume at 22:42 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 |
|---|---|---|---|
| Jun 22, 6:48 PM EDT | HAIL 0.5 | 1 N Wharton, NJ | |
| Jun 22, 6:48 PM EDT | HAIL 0.5 | Wharton, NJ | |
| Jun 22, 6:50 PM EDT | HAIL 0.75 | Rockaway, NJ | Penny size hail reported. 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, 10.7 hours before the alert went out and 139 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
- 264 J/kg
- Mixed-layer CIN
- -142 J/kg
- Mixed-layer LCL
- 1033 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 97 m²/s²
- 0-3 km storm-relative helicity
- 65 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
403
WUUS51 KPHI 222239
SVRPHI
NJC027-222315-
/O.NEW.KPHI.SV.W.0039.240622T2239Z-240622T2315Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
639 PM EDT Sat Jun 22 2024
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Central Morris County in northern New Jersey...
* Until 715 PM EDT.
* At 639 PM EDT, a severe thunderstorm was located over Dover, or 7
miles northwest of Morristown, moving east at 25 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...
Morristown, Dover, East Hanover, Boonton, Wharton, Rockaway, Morris
Plains, Mount Arlington, Mountain Lakes, Stanhope, Netcong, Victory
Gardens, Succasunna, Succasunna-Kenvil, Parsippany, Lake Telemark,
Budd Lake, White Meadow Lake, and Hanover Township.
This includes the following highways...
Interstate 80 in New Jersey between mile markers 27 and 46.
Interstate 287 in New Jersey between mile markers 37 and 47.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4079 7437 4082 7470 4090 7471 4092 7465
4093 7465 4098 7437 4081 7435
TIME...MOT...LOC 2239Z 265DEG 22KT 4087 7458
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
AKL2 follow-up statements
849
WWUS51 KPHI 222251
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
651 PM EDT Sat Jun 22 2024
NJC027-222315-
/O.CON.KPHI.SV.W.0039.000000T0000Z-240622T2315Z/
Morris NJ-
651 PM EDT Sat Jun 22 2024
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM EDT
FOR EAST CENTRAL MORRIS COUNTY...
At 651 PM EDT, a severe thunderstorm was located over Rockaway, or 7
miles northwest of Morristown, moving east at 20 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Dover, Boonton, Wharton, Rockaway, Morris Plains, Mountain Lakes,
Victory Gardens, Parsippany, Lake Telemark, and White Meadow Lake.
This includes the following highways...
Interstate 80 in New Jersey between mile markers 33 and 47.
Interstate 287 in New Jersey between mile markers 40 and 47.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4085 7460 4094 7461 4098 7437 4083 7435
TIME...MOT...LOC 2251Z 258DEG 19KT 4090 7454
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
AKL082 WWUS51 KPHI 222310 SVSPHI Severe Weather Statement National Weather Service Mount Holly NJ 710 PM EDT Sat Jun 22 2024 NJC027-222318- /O.EXP.KPHI.SV.W.0039.000000T0000Z-240622T2315Z/ Morris NJ- 710 PM EDT Sat Jun 22 2024 ...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL MORRIS COUNTY WILL EXPIRE AT 715 PM EDT... The storm which prompted the warning has begun to move out of the area. Therefore, the inital warning will be allowed to expire. A new warning has been issued for Northeastern Morris County. Remember, a Severe Thunderstorm Warning still remains in effect for Northeastern Morris County until 730 PM EDT. LAT...LON 4085 7460 4094 7461 4098 7437 4083 7435 TIME...MOT...LOC 2308Z 265DEG 22KT 4091 7442 $$ AKL
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 22, 2:38 AM EDT | Small Craft Advisory | PHI | 71 hr | |
| Jun 22, 3:47 AM EDT | Excessive Heat Warning | PHI | Burlington, Camden, Gloucester, Hunterdon, Mercer, Middlesex and 4 more | 40 hr |
| Jun 22, 12:26 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 34 min |
| Jun 22, 3:06 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Somerset | 20 min |
| Jun 22, 4:10 PM EDT | Severe Thunderstorm Warning | PHI | Monmouth | 35 min |
| Jun 22, 4:15 PM EDT | Special Marine Warning | PHI | 45 min | |
| Jun 22, 4:39 PM EDT | Special Marine Warning | PHI | 17 min | |
| Jun 22, 4:39 PM EDT | Rip Current Statement | PHI | Atlantic, Cape May, Ocean | 11 hr |
| Jun 22, 4:39 PM EDT | Rip Current Statement | PHI | Atlantic, Cape May, Monmouth, Ocean | 11 hr |
| Jun 22, 7:07 PM EDT | Severe Thunderstorm Warning | PHI | Morris | 23 min |
| Jun 22, 7:32 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Morris, Somerset | 22 min |
| Jun 22, 7:48 PM EDT | Flash Flood Warning | PHI | Hunterdon | 4 hr |
| Jun 22, 7:57 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon | 17 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2024Every severe thunderstorm warning in 2024
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.