Alert archive / New Jersey / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 37, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at May 19, 2019, 10:27 PM EDT for 7 counties in New Jersey; Bucks County, Pennsylvania. It was in force for 48 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
- May 19, 2019, 10:27 PM EDT (02:27 UTC)
- Expired
- May 19, 2019, 11:15 PM EDT
- In force
- 48 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Morris County, NJ, Ocean County, NJ, Somerset County, NJ, Bucks County, PA
The radar
The Philadelphia radar (KDIX), 50 km from the middle of the area, began a volume at 02:27 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 19, 2:36 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 00:00Z, 2.5 hours before the alert went out and 134 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
- 61 J/kg
- Mixed-layer CIN
- -284 J/kg
- Mixed-layer LCL
- 581 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 147 m²/s²
- 0-3 km storm-relative helicity
- 224 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
The text
As transmitted.
668
WUUS51 KPHI 200227
SVRPHI
NJC019-021-023-025-027-029-035-PAC017-200330-
/O.NEW.KPHI.SV.W.0037.190520T0227Z-190520T0330Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
1027 PM EDT Sun May 19 2019
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Northern Ocean County in southern New Jersey...
Southern Morris County in northern New Jersey...
Eastern Hunterdon County in northwestern New Jersey...
Mercer County in central New Jersey...
Somerset County in northern New Jersey...
Monmouth County in central New Jersey...
Middlesex County in northern New Jersey...
Southeastern Bucks County in southeastern Pennsylvania...
* Until 1130 PM EDT.
* At 1025 PM EDT, thunderstorms...some of them possibly severe, were
moving through far eastern Bucks County in Pennsylvania and
Hunterdon County in western New Jersey. These thunderstorms were
moving east at 45 MPH and will be moving through New Jersey
through the late evening hours.
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...
Toms River, Trenton, New Brunswick, Perth Amboy, Long Branch,
Morristown, Asbury Park, Somerville, Sandy Hook, Somerset, Edison,
Lakewood, Middletown, Old Bridge, Jackson, Howell, East Brunswick,
Bridgewater, South Brunswick and Sayreville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
In addition to large hail and damaging winds, frequent cloud to
ground lightning is occurring with these storms. Move indoors
immediately. Remember, if you can hear thunder, you are close enough
to be struck by lightning.
&&
LAT...LON 4007 7404 4006 7412 4004 7405 4003 7405
4006 7454 4019 7470 4013 7477 4020 7502
4089 7479 4092 7474 4084 7433 4067 7446
4065 7440 4060 7446 4060 7421 4047 7427
4042 7401 4048 7401 4047 7399 4044 7398
TIME...MOT...LOC 0225Z 282DEG 39KT 4031 7478
HAIL...1.00IN
WIND...60MPH
$$
JJM2 follow-up statements
655
WWUS51 KPHI 200305
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
1105 PM EDT Sun May 19 2019
NJC019-021-027-029-PAC017-200314-
/O.CAN.KPHI.SV.W.0037.000000T0000Z-190520T0330Z/
Ocean NJ-Morris NJ-Hunterdon NJ-Mercer NJ-Bucks PA-
1105 PM EDT Sun May 19 2019
...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN OCEAN...SOUTHERN
MORRIS...EASTERN HUNTERDON...MERCER AND SOUTHEASTERN BUCKS COUNTIES
IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
LAT...LON 4055 7425 4050 7426 4050 7428 4045 7423
4036 7426 4043 7460 4051 7477 4058 7471
4068 7453 4065 7452 4067 7446 4065 7441
4060 7446 4060 7421
TIME...MOT...LOC 0304Z 274DEG 39KT 4065 7416 4045 7430
$$
NJC023-025-035-200330-
/O.CON.KPHI.SV.W.0037.000000T0000Z-190520T0330Z/
Somerset NJ-Monmouth NJ-Middlesex NJ-
1105 PM EDT Sun May 19 2019
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 PM EDT
FOR CENTRAL SOMERSET...NORTH CENTRAL MONMOUTH AND MIDDLESEX
COUNTIES...
At 1104 PM EDT, severe thunderstorms were located along a line
extending from Port Richmond to Sayreville, moving east at 45 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, Somerville, Somerset, Edison, Old Bridge,
East Brunswick, Bridgewater, Sayreville, North Brunswick, Carteret,
Middlesex, Bound Brook, Manville, Matawan, Millstone, Flagtown,
Colonia, Brownville and Belle Mead.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4055 7425 4050 7426 4050 7428 4045 7423
4036 7426 4043 7460 4051 7477 4058 7471
4068 7453 4065 7452 4067 7446 4065 7441
4060 7446 4060 7421
TIME...MOT...LOC 0304Z 274DEG 39KT 4065 7416 4045 7430
HAIL...0.75IN
WIND...60MPH
$$
Staarmann517
WWUS51 KPHI 200315
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
1115 PM EDT Sun May 19 2019
NJC023-025-035-200325-
/O.CAN.KPHI.SV.W.0037.000000T0000Z-190520T0330Z/
Somerset NJ-Monmouth NJ-Middlesex NJ-
1115 PM EDT Sun May 19 2019
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL SOMERSET...NORTH
CENTRAL MONMOUTH AND MIDDLESEX COUNTIES IS CANCELLED...
The storms which prompted the warning have weakened below severe
limits, and have exited the warned area. Therefore, the warning has
been cancelled.
LAT...LON 4055 7425 4050 7426 4050 7428 4045 7423
4036 7426 4043 7460 4051 7477 4058 7471
4068 7453 4065 7452 4067 7446 4065 7441
4060 7446 4060 7421
TIME...MOT...LOC 0308Z 282DEG 39KT 4064 7410 4044 7424
$$
StaarmannThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 19, 9:46 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Morris, Somerset, Warren | 44 min |
| May 19, 10:34 PM EDT | Areal Flood Advisory | PHI | Hunterdon, Mercer, Middlesex, Morris, Somerset, Sussex and 1 more | 3 hr |
| May 19, 11:41 PM EDT | Severe Thunderstorm Warning | PHI | Warren | 53 min |
| May 20, 1:03 AM EDT | Special Weather Statement | PHI | Morris, Warren | 57 min |
| May 19, 8:14 PM EDT | Special Weather Statement | PHI | Lehigh | 46 min |
| May 19, 8:35 PM EDT | Tornado Warning | PHI | Berks | 25 min |
| May 19, 8:37 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh, Montgomery | 38 min |
| May 19, 8:43 PM EDT | Flash Flood Warning | PHI | Berks | 3 hr |
| May 19, 9:09 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Chester, Lehigh, Montgomery, Northampton | 51 min |
| May 19, 9:29 PM EDT | Flash Flood Warning | PHI | Berks, Bucks, Lehigh, Montgomery, Northampton | 4 hr |
| May 19, 10:48 PM EDT | Flash Flood Warning | PHI | Berks | 117 min |
| May 19, 11:00 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 60 min |
| May 19, 11:15 PM EDT | Flash Flood Warning | PHI | Carbon, Lehigh, Monroe, Northampton | 3 hr |
| May 19, 11:54 PM EDT | Severe Thunderstorm Warning | PHI | Lehigh, Northampton | 39 min |
| May 20, 12:57 AM EDT | Areal Flood Advisory | PHI | Berks | 3 hr |
| May 20, 1:21 AM EDT | Areal Flood Advisory | PHI | Berks, Montgomery | 3 hr |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2019Severe Thunderstorm Warnings in Pennsylvania, 2019Every severe thunderstorm warning in 2019
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.