Alert archive / New Jersey / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 226, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 27, 2021, 6:07 PM EDT for Sussex County, New Jersey. It was in force for 23 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
- Jul 27, 2021, 6:07 PM EDT (22:07 UTC)
- Expired
- Jul 27, 2021, 6:30 PM EDT
- In force
- 23 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Sussex County, NJ
The radar
The Philadelphia radar (KDIX), 147 km from the middle of the area, began a volume at 22:08 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, 6:10 PM EDT | TSTM WND DMG | 2 Wsw Wantage Twp, NJ | TREE LIMBS ONTO WIRES WITH A FIRE REPORTED ON ARMSTRONG ROAD. TIME ESTIMATED FROM RADAR. |
| Jul 27, 6:15 PM EDT | TSTM WND DMG | 1 Nne Sussex, NJ | MPING REPORT OF TREE LIMBS BROKEN; SOME SHINGLES BLOWN OFF. TIME ESTIMATED FROM RADAR. |
| Jul 27, 6:15 PM EDT | TSTM WND DMG | Glenwood, NJ | SEVERAL TREE LIMBS DOWN WITH LANE BLOCKAGES ALONG ROUTE 517 IN GLENWOOD. 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, 10.1 hours before the alert went out and 149 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.
214
WUUS51 KPHI 272207
SVRPHI
NJC037-272230-
/O.NEW.KPHI.SV.W.0226.210727T2207Z-210727T2230Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
607 PM EDT Tue Jul 27 2021
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Northeastern Sussex County in northwestern New Jersey...
* Until 630 PM EDT.
* At 607 PM EDT, a severe thunderstorm was located near Unionville,
or 9 miles southeast of Matamoras, 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...
Hamburg, Sussex, Vernon Valley, High Point and Highland Lake.
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 4132 7461 4120 7436 4119 7439 4114 7463
4131 7471 4134 7464
TIME...MOT...LOC 2207Z 250DEG 20KT 4126 7458
HAIL...0.75IN
WIND...60MPH
$$
MPS2 follow-up statements
496
WWUS51 KPHI 272218
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
618 PM EDT Tue Jul 27 2021
NJC037-272230-
/O.CON.KPHI.SV.W.0226.000000T0000Z-210727T2230Z/
Sussex NJ-
618 PM EDT Tue Jul 27 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR NORTHEASTERN SUSSEX COUNTY...
At 618 PM EDT, a severe thunderstorm was located over Vernon Valley,
or 8 miles west of Warwick, moving east at 25 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Hamburg, Sussex, Vernon Valley and Highland Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Mount Holly NJ.
&&
LAT...LON 4115 7462 4130 7458 4120 7436 4119 7439
4115 7460
TIME...MOT...LOC 2218Z 282DEG 22KT 4123 7451
HAIL...0.75IN
WIND...60MPH
$$
MPS690
WWUS51 KPHI 272224
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
624 PM EDT Tue Jul 27 2021
NJC037-272234-
/O.EXP.KPHI.SV.W.0226.000000T0000Z-210727T2230Z/
Sussex NJ-
624 PM EDT Tue Jul 27 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN SUSSEX COUNTY
WILL EXPIRE AT 630 PM EDT...
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 will be allowed to expire.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Mount Holly NJ.
LAT...LON 4115 7462 4130 7458 4120 7436 4119 7439
4115 7460
TIME...MOT...LOC 2224Z 250DEG 20KT 4124 7448
$$
MPSThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 5:38 PM EDT | Severe Thunderstorm Warning | PHI | Sussex, Warren | 24 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 |
Nearby
Severe Thunderstorm Warnings in New Jersey, 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.