Alert archive / New Jersey / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 153, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 3, 2017, 6:06 PM EDT for Burlington County, New Jersey; Bucks County, Pennsylvania. It was in force for 39 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
- Aug 3, 2017, 6:06 PM EDT (22:06 UTC)
- Expired
- Aug 3, 2017, 6:45 PM EDT
- In force
- 39 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Burlington County, NJ, Bucks County, PA
The radar
The Philadelphia radar (KDIX), 30 km from the middle of the area, began a volume at 22:05 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 |
|---|---|---|---|
| Aug 3, 6:15 PM EDT | TSTM WND DMG | Burlington City, NJ | NUMEROUS TREES DOWN WITH POWER OUTAGES. 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 181 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
- 207 J/kg
- Mixed-layer CIN
- -75 J/kg
- Mixed-layer LCL
- 895 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 42 m²/s²
- 0-3 km storm-relative helicity
- 54 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
111
WUUS51 KPHI 032206
SVRPHI
NJC005-PAC017-032245-
/O.NEW.KPHI.SV.W.0153.170803T2206Z-170803T2245Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
606 PM EDT THU AUG 3 2017
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Northwestern Burlington County in southern New Jersey...
Southeastern Bucks County in southeastern Pennsylvania...
* Until 645 PM EDT
* At 605 PM EDT, a severe thunderstorm was located over Willingboro,
or 12 miles east of Philadelphia, and is nearly stationary. This
replaces the previous severe thunderstorm warning issued for the
area.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Expect damage to
trees and power lines.
* Locations impacted include...
Willingboro, Florence, Burlington, Bristol, Mount Holly, Riverside,
Palmyra, Beverly, Tullytown, Wrightstown, Florence-Roebling,
Jacksonville, Georgetown, Jobstown, Columbus, Levittown,
Cinnaminson, Edgewater Park, Delanco and Riverton.
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 4004 7462 3997 7475 3999 7503 4013 7490
4014 7461 4013 7459
TIME...MOT...LOC 2205Z 278DEG 4KT 4004 7491
HAIL...1.00IN
WIND...60MPH
$$
CMS2 follow-up statements
489
WWUS51 KPHI 032219
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
619 PM EDT THU AUG 3 2017
NJC005-PAC017-032245-
/O.CON.KPHI.SV.W.0153.000000T0000Z-170803T2245Z/
Burlington NJ-Bucks PA-
619 PM EDT THU AUG 3 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT
FOR NORTHWESTERN BURLINGTON AND SOUTHEASTERN BUCKS COUNTIES...
At 618 PM EDT, a severe thunderstorm was located over Willingboro, or
13 miles east of Philadelphia, and is nearly stationary.
HAZARD...60 mph wind gusts and quarter size hail. There is strong
radar evidence of hail falling near Willingboro and
Edgewater Park at this time.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Expect damage to
trees and power lines.
Locations impacted include...
Willingboro, Florence, Burlington, Bristol, Mount Holly, Riverside,
Palmyra, Beverly, Tullytown, Wrightstown, Florence-Roebling,
Jacksonville, Georgetown, Jobstown, Columbus, Levittown, Cinnaminson,
Edgewater Park, Delanco and Riverton.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
In addition to large hail and damaging winds...frequent cloud to
ground lightning is occurring with this storm. Move indoors
immediately. Remember...if you can hear thunder...you are close
enough to be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4004 7462 3997 7475 3999 7503 4013 7490
4014 7461 4013 7459
TIME...MOT...LOC 2218Z 278DEG 4KT 4004 7489
HAIL...1.00IN
WIND...60MPH
$$
CMS729
WWUS51 KPHI 032243
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
643 PM EDT THU AUG 3 2017
NJC005-PAC017-032252-
/O.EXP.KPHI.SV.W.0153.000000T0000Z-170803T2245Z/
Burlington NJ-Bucks PA-
643 PM EDT THU AUG 3 2017
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN BURLINGTON AND
SOUTHEASTERN BUCKS COUNTIES WILL EXPIRE AT 645 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. However gusty winds
and heavy rain are still possible with this thunderstorm.
LAT...LON 4004 7462 3997 7475 3999 7503 4013 7490
4014 7461 4013 7459
TIME...MOT...LOC 2242Z 278DEG 4KT 4004 7486
$$
CMSThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 2:47 PM EDT | Special Marine Warning | PHI | 58 min | |
| Aug 3, 3:35 PM EDT | Special Marine Warning | PHI | 85 min | |
| Aug 3, 4:44 PM EDT | Special Weather Statement | PHI | Mercer | 31 min |
| Aug 3, 4:47 PM EDT | Special Marine Warning | PHI | 88 min | |
| Aug 3, 4:51 PM EDT | Special Weather Statement | PHI | Salem | 24 min |
| Aug 3, 5:07 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer, Monmouth, Ocean | 38 min |
| Aug 3, 5:17 PM EDT | Flash Flood Warning | PHI | Burlington, Mercer | 4 hr |
| Aug 3, 5:42 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer | 48 min |
| Aug 3, 5:54 PM EDT | Special Weather Statement | PHI | Somerset | 36 min |
| Aug 3, 6:38 PM EDT | Areal Flood Advisory | PHI | Burlington, Camden | 4 hr |
| Aug 3, 6:50 PM EDT | Special Weather Statement | PHI | Mercer | 55 min |
| Aug 3, 6:54 PM EDT | Special Weather Statement | PHI | Hunterdon | 66 min |
| Aug 3, 7:25 PM EDT | Areal Flood Advisory | PHI | Hunterdon, Mercer | 4 hr |
| Aug 3, 7:34 PM EDT | Special Weather Statement | PHI | Hunterdon, Mercer | 41 min |
| Aug 3, 7:47 PM EDT | Special Weather Statement | PHI | Morris | 43 min |
| Aug 3, 3:31 PM EDT | Special Weather Statement | PHI | Bucks, Philadelphia | 44 min |
| Aug 3, 5:57 PM EDT | Special Weather Statement | PHI | Delaware | 33 min |
| Aug 3, 6:15 PM EDT | Special Weather Statement | PHI | Philadelphia | 30 min |
| Aug 3, 6:34 PM EDT | Special Weather Statement | PHI | Lehigh | 41 min |
| Aug 3, 7:16 PM EDT | Special Weather Statement | PHI | Lehigh | 44 min |
| Aug 3, 7:37 PM EDT | Special Weather Statement | PHI | Lehigh | 38 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2017Severe Thunderstorm Warnings in Pennsylvania, 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.