Alert archive / New Jersey / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 16, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Feb 25, 2017, 5:23 PM EST for 6 counties in New Jersey. It was in force for 52 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
- Feb 25, 2017, 5:23 PM EST (22:23 UTC)
- Expired
- Feb 25, 2017, 6:15 PM EST
- In force
- 52 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Atlantic County, NJ, Burlington County, NJ, Cape May County, NJ, Cumberland County, NJ, Gloucester County, NJ, Salem County, NJ
The radar
The Dover AFB radar (KDOX), 73 km from the middle of the area, began a volume at 22:22 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 |
|---|---|---|---|
| Feb 25, 5:25 PM EST | TSTM WND GST 55 | Fortescue, NJ |
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 |
|---|---|---|---|
| Feb 25, 1:30 PM EST | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Wallops Is Stn, VA (KWAL), launched 12:00Z, 10.4 hours before the alert went out and 161 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
- 960 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 68 m²/s²
- 0-3 km storm-relative helicity
- 83 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
370
WUUS51 KPHI 252223
SVRPHI
NJC001-005-009-011-015-033-252315-
/O.NEW.KPHI.SV.W.0016.170225T2223Z-170225T2315Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
523 PM EST SAT FEB 25 2017
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Atlantic County in southern New Jersey...
Cumberland County in southern New Jersey...
East central Salem County in southern New Jersey...
Southeastern Gloucester County in southern New Jersey...
Cape May County in southern New Jersey...
Southeastern Burlington County in southern New Jersey...
* Until 615 PM EST
* At 522 PM EST, severe thunderstorms were located along a line
extending from near Dividing Creek to 7 miles northeast of Bowers
to Milford, moving northeast at 60 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Severe thunderstorms will be near,
Laurel Lake, Port Elizabeth, Bricksboro, Mauricetown, Fortesque
and South Vineland around 530 PM EST.
Cumberland and Dividing Creek around 535 PM EST.
Dorothy, Bivalve, Leesburg, Port Norris and Mizpah around 540 PM
EST.
Weymouth, Mays Landing and Eldora around 545 PM EST.
Woodbine, Estell Manor, Belleplain Forest and North Cape May
around 550 PM EST.
Pomona, Green Creek and Rio Grande around 555 PM EST.
Egg Harbor City, Stone Harbor, Corbin City, English Creek, Goshen,
Dennisville, Cape May Court House, Wading River and Scotch Bonnet
around 600 PM EST.
Somers Point, Northfield, Margate City, Avalon, Port Republic,
Longport and New Gretna around 605 PM EST.
Other locations impacted by these severe thunderstorms include Erma,
Whitesboro-Burleigh, Linwood, Folsom, Collings Lakes, Villas, West
Wildwood and Mystic Island.
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 this storm. Move indoors
immediately. Remember...if you can hear thunder...you are close
enough to be struck by lightning.
&&
LAT...LON 3919 7462 3891 7486 3893 7500 3915 7492
3919 7508 3916 7515 3921 7524 3946 7527
3962 7489 3961 7487 3964 7484 3978 7451
3939 7434
TIME...MOT...LOC 2222Z 243DEG 52KT 3930 7512 3911 7528 3892 7546
HAIL...0.75IN
WIND...60MPH
$$
Robertson1 follow-up statement
673
WWUS51 KPHI 252249
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
549 PM EST SAT FEB 25 2017
NJC015-033-252259-
/O.CAN.KPHI.SV.W.0016.000000T0000Z-170225T2315Z/
Salem NJ-Gloucester NJ-
549 PM EST SAT FEB 25 2017
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL SALEM AND
SOUTHEASTERN GLOUCESTER COUNTIES IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A severe thunderstorm watch remains in effect until 800 PM EST for
southern New Jersey. A severe thunderstorm watch also remains in
effect until 900 PM EST for southern New Jersey.
LAT...LON 3919 7462 3891 7486 3893 7499 3915 7492
3918 7504 3957 7492 3965 7483 3978 7451
3939 7434
TIME...MOT...LOC 2249Z 242DEG 52KT 3963 7480 3927 7487 3908 7505
$$
NJC001-005-009-011-252315-
/O.CON.KPHI.SV.W.0016.000000T0000Z-170225T2315Z/
Atlantic NJ-Cumberland NJ-Cape May NJ-Burlington NJ-
549 PM EST SAT FEB 25 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EST
FOR ATLANTIC...SOUTHEASTERN CUMBERLAND...CAPE MAY AND SOUTHEASTERN
BURLINGTON COUNTIES...
At 549 PM EST, severe thunderstorms were located along a line
extending from Hammonton to Belleplain Forest to 8 miles west of
Green Creek, moving northeast at 60 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
These severe storms will be near...
Hammonton, Estell Manor, Batsto and Elwood-Magnolia around 555 PM
EST.
Egg Harbor City, English Creek, Wharton State Forest and Scotch
Bonnet around 600 PM EST.
Somers Point, Avalon, Longport and Dennisville around 605 PM EST.
Pleasantville, Ventnor City, Northfield, Absecon, Margate City,
Sea Isle City, Seaville, Strathmere and Pomona around 610 PM EST.
Atlantic City, Ocean City, Brigantine, Port Republic, Marmora and
Beesleys Point around 615 PM EST.
Other locations impacted by these severe thunderstorms include Erma,
Whitesboro-Burleigh, Linwood, Folsom, Collings Lakes, Villas, West
Wildwood and Mystic Island.
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 this storm. Move indoors
immediately. Remember...if you can hear thunder...you are close
enough to be struck by lightning.
&&
LAT...LON 3919 7462 3891 7486 3893 7499 3915 7492
3918 7504 3957 7492 3965 7483 3978 7451
3939 7434
TIME...MOT...LOC 2249Z 242DEG 52KT 3963 7480 3927 7487 3908 7505
HAIL...0.75IN
WIND...60MPH
$$
RobertsonThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 24, 9:50 PM EST | Marine Dense Fog Advisory | PHI | 20 hr | |
| Feb 25, 4:17 PM EST | Severe Thunderstorm Warning | PHI | Hunterdon, Morris, Warren | 43 min |
| Feb 25, 4:24 PM EST | Special Marine Warning | PHI | 66 min | |
| Feb 25, 4:40 PM EST | Severe Thunderstorm Warning | PHI | Camden, Cumberland, Gloucester, Salem | 50 min |
| Feb 25, 4:54 PM EST | Severe Thunderstorm Warning | PHI | Hunterdon, Morris, Somerset, Sussex, Warren | 51 min |
| Feb 25, 4:59 PM EST | Special Marine Warning | PHI | 61 min | |
| Feb 25, 5:01 PM EST | Special Weather Statement | PHI | Mercer, Somerset | 44 min |
| Feb 25, 5:17 PM EST | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Cumberland, Gloucester, Mercer and 5 more | 43 min |
| Feb 25, 5:38 PM EST | Special Marine Warning | PHI | 67 min | |
| Feb 25, 6:04 PM EST | Special Weather Statement | PHI | Middlesex, Monmouth, Ocean | 41 min |
| Feb 25, 6:09 PM EST | Special Marine Warning | PHI | 66 min | |
| Feb 25, 6:14 PM EST | Special Weather Statement | PHI | Atlantic | 31 min |
| Feb 25, 6:20 PM EST | Special Marine Warning | PHI | 85 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2017Every severe thunderstorm warning in 2017
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.