Alert archive / New Jersey / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 58, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 27, 2018, 4:32 PM EDT for Middlesex County, Somerset County, New Jersey. It was in force for 43 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, 2018, 4:32 PM EDT (20:32 UTC)
- Expired
- Jul 27, 2018, 5:15 PM EDT
- In force
- 43 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Middlesex County, NJ, Somerset County, NJ
The radar
The Philadelphia radar (KDIX), 67 km from the middle of the area, began a volume at 20:32 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, 4:40 PM EDT | TSTM WND DMG | Woodbridge, NJ | NUMEROUS TREES DOWN. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 27, 1:17 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 8.5 hours before the alert went out and 127 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
- 752 J/kg
- Mixed-layer CIN
- -30 J/kg
- Mixed-layer LCL
- 998 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 37 m²/s²
- 0-3 km storm-relative helicity
- 53 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.5
The text
As transmitted.
613
WUUS51 KPHI 272032
SVRPHI
NJC023-035-272115-
/O.NEW.KPHI.SV.W.0058.180727T2032Z-180727T2115Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
432 PM EDT FRI JUL 27 2018
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Southeastern Somerset County in northern New Jersey...
Northeastern Middlesex County in northern New Jersey...
* Until 515 PM EDT.
* At 432 PM EDT, a severe thunderstorm was located over Colonia, or
near Perth Amboy, moving east at 15 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...
New Brunswick, Perth Amboy, Somerset, Edison, East Brunswick,
Sayreville, North Brunswick, Carteret, Middlesex, Bound Brook,
Colonia, North Brunswick Township, Society Hill, Woodbridge, South
Plainfield, South River, Highland Park, Metuchen, Dunellen and
Milltown.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4056 7421 4055 7425 4050 7426 4050 7428
4046 7426 4045 7423 4043 7452 4058 7453
4060 7446 4061 7435 4061 7431 4059 7429
4060 7426 4059 7420
TIME...MOT...LOC 2032Z 258DEG 13KT 4056 7431
HAIL...0.75IN
WIND...60MPH
$$
CMS2 follow-up statements
944
WWUS51 KPHI 272049
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
449 PM EDT FRI JUL 27 2018
NJC035-272059-
/O.CAN.KPHI.SV.W.0058.000000T0000Z-180727T2115Z/
Somerset NJ-
449 PM EDT FRI JUL 27 2018
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN SOMERSET COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the area. Therefore, the warning has been cancelled.
A severe thunderstorm watch remains in effect until 1000 PM EDT for
northern New Jersey.
LAT...LON 4045 7440 4060 7444 4061 7435 4061 7431
4059 7429 4060 7426 4059 7420 4056 7421
4055 7425 4050 7426 4050 7428 4046 7426
4045 7424
TIME...MOT...LOC 2049Z 260DEG 12KT 4056 7425
$$
NJC023-272115-
/O.CON.KPHI.SV.W.0058.000000T0000Z-180727T2115Z/
Middlesex NJ-
449 PM EDT FRI JUL 27 2018
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR NORTHEASTERN MIDDLESEX COUNTY...
At 449 PM EDT, a severe thunderstorm was located over Carteret, or
near Perth Amboy, moving east at 15 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...
New Brunswick, Perth Amboy, Edison, East Brunswick, Sayreville,
Carteret, Colonia, Woodbridge, South Plainfield, South River,
Highland Park, Metuchen, Iselin, Sewaren, Port Reading, Fords, Avenel
and Madison Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4045 7440 4060 7444 4061 7435 4061 7431
4059 7429 4060 7426 4059 7420 4056 7421
4055 7425 4050 7426 4050 7428 4046 7426
4045 7424
TIME...MOT...LOC 2049Z 260DEG 12KT 4056 7425
HAIL...0.75IN
WIND...60MPH
$$
CMS380
WWUS51 KPHI 272113
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
513 PM EDT FRI JUL 27 2018
NJC023-272122-
/O.EXP.KPHI.SV.W.0058.000000T0000Z-180727T2115Z/
Middlesex NJ-
513 PM EDT FRI JUL 27 2018
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MIDDLESEX COUNTY
WILL EXPIRE AT 515 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and is exiting the warned area. Therefore, the warning will
be allowed to expire. However gusty winds and heavy rain are still
possible with this thunderstorm. In addition, flash flooding has
been reported in Middlesex County, and a flash flood warning remains
in effect.
A severe thunderstorm watch remains in effect until 1000 PM EDT for
northern New Jersey.
LAT...LON 4045 7440 4060 7444 4061 7435 4061 7431
4059 7429 4060 7426 4059 7420 4056 7421
4055 7425 4050 7426 4050 7428 4046 7426
4045 7424
TIME...MOT...LOC 2112Z 258DEG 13KT 4057 7416
$$
CMSThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 9:29 AM EDT | Special Weather Statement | PHI | Salem | 61 min |
| Jul 27, 9:50 AM EDT | Flash Flood Watch | PHI | Burlington, Camden, Cumberland, Gloucester, Hunterdon, Mercer and 7 more | 13 hr |
| Jul 27, 10:08 AM EDT | Special Weather Statement | PHI | Cumberland | 67 min |
| Jul 27, 10:34 AM EDT | Rip Current Statement | PHI | Atlantic, Cape May, Monmouth, Ocean | 10 hr |
| Jul 27, 11:11 AM EDT | Special Weather Statement | PHI | Atlantic | 64 min |
| Jul 27, 12:10 PM EDT | Special Weather Statement | PHI | Atlantic | 65 min |
| Jul 27, 12:24 PM EDT | Areal Flood Advisory | PHI | Cape May | 114 min |
| Jul 27, 1:15 PM EDT | Special Weather Statement | PHI | Salem | 45 min |
| Jul 27, 1:23 PM EDT | Special Weather Statement | PHI | Morris | 52 min |
| Jul 27, 1:31 PM EDT | Special Marine Warning | PHI | 59 min | |
| Jul 27, 1:38 PM EDT | Areal Flood Advisory | PHI | Hunterdon, Morris, Somerset | 4 hr |
| Jul 27, 2:04 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Somerset | 41 min |
| Jul 27, 2:14 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Salem | 46 min |
| Jul 27, 2:19 PM EDT | Special Marine Warning | PHI | 56 min | |
| Jul 27, 2:22 PM EDT | Special Marine Warning | PHI | 53 min | |
| Jul 27, 2:26 PM EDT | Areal Flood Advisory | PHI | Cumberland, Salem | 6 hr |
| Jul 27, 2:40 PM EDT | Special Marine Warning | PHI | 65 min | |
| Jul 27, 2:59 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Salem | 46 min |
| Jul 27, 3:09 PM EDT | Areal Flood Advisory | PHI | Cumberland, Salem | 6 hr |
| Jul 27, 3:14 PM EDT | Special Marine Warning | PHI | 61 min | |
| Jul 27, 3:45 PM EDT | Special Weather Statement | PHI | Cumberland | 30 min |
| Jul 27, 4:12 PM EDT | Special Marine Warning | PHI | 63 min | |
| Jul 27, 4:18 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Cape May, Cumberland, Gloucester, Salem | 42 min |
| Jul 27, 4:19 PM EDT | Flash Flood Warning | PHI | Cumberland | 4 hr |
| Jul 27, 4:25 PM EDT | Areal Flood Advisory | PHI | Middlesex, Somerset | 7 hr |
| Jul 27, 4:43 PM EDT | Areal Flood Advisory | PHI | Mercer | 5 hr |
| Jul 27, 4:54 PM EDT | Flash Flood Warning | PHI | Middlesex | 4 hr |
| Jul 27, 5:03 PM EDT | Areal Flood Advisory | PHI | Atlantic, Burlington, Cumberland | 4 hr |
| Jul 27, 5:23 PM EDT | Special Marine Warning | PHI | 67 min | |
| Jul 27, 5:46 PM EDT | Areal Flood Advisory | PHI | Atlantic, Burlington, Cape May, Cumberland, Ocean | 4 hr |
| Jul 27, 6:10 PM EDT | Areal Flood Advisory | PHI | Mercer, Middlesex, Monmouth, Somerset | 4 hr |
| Jul 27, 7:14 PM EDT | Special Marine Warning | PHI | 61 min | |
| Jul 27, 7:15 PM EDT | Areal Flood Advisory | PHI | Hunterdon, Morris, Somerset, Sussex, Warren | 4 hr |
| Jul 27, 7:51 PM EDT | Special Weather Statement | PHI | Atlantic | 39 min |
| Jul 27, 7:55 PM EDT | Areal Flood Advisory | PHI | Hunterdon, Mercer, Somerset, Warren | 108 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2018Every severe thunderstorm warning in 2018
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.