Alert archive / New Jersey / Severe Thunderstorm Warnings in 2014
Severe Thunderstorm Warning 152, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 21, 2014, 7:29 PM EDT for Sussex County, New Jersey. It was in force for 49 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 21, 2014, 7:29 PM EDT (23:29 UTC)
- Expired
- Aug 21, 2014, 8:18 PM EDT
- In force
- 49 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
County Sussex County, NJ
The radar
The Philadelphia radar (KDIX), 138 km from the middle of the area, began a volume at 23:29 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 21, 7:40 PM EDT | HAIL 0.25 | Montague, NJ |
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, 11.5 hours before the alert went out and 157 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
- 1296 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- -12 m²/s²
- 0-3 km storm-relative helicity
- 57 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
608
WUUS51 KPHI 212329
SVRPHI
NJC037-220030-
/O.NEW.KPHI.SV.W.0152.140821T2329Z-140822T0030Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
729 PM EDT THU AUG 21 2014
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SUSSEX COUNTY IN NORTHWEST NEW JERSEY...
* UNTIL 830 PM EDT
* AT 727 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM. THE STORM WAS NEAR HIGH POINT...MOVING EAST AT
20 MPH. THIS STORM IS CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...
AND DAMAGING WINDS IN EXCESS OF 60 MPH. OTHER STRONG TO POSSIBLY
SEVERE THUNDERSTORMS ARE MOVING INTO SOUTHWEST SUSSEX COUNTY.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
SUSSEX AROUND 735 PM EDT...
FRANKLIN AND OGDENSBURG AROUND 740 PM EDT...
HAMBURG AROUND 745 PM EDT...
VERNON VALLEY AROUND 755 PM EDT...
HIGHLAND LAKE AROUND 800 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...MOVE INDOORS TO A
STURDY BUILDING AND STAY AWAY FROM WINDOWS. WHEN IT IS SAFE TO DO
SO...REPORT SEVERE WEATHER TO LOCAL LAW ENFORCEMENT OR TO THE
NATIONAL WEATHER SERVICE.
&&
LAT...LON 4125 7445 4120 7437 4091 7472 4092 7474
4110 7497 4118 7489 4119 7489 4135 7475
4136 7469
TIME...MOT...LOC 2329Z 276DEG 16KT 4126 7464
$$
FORECASTER: AMC1 follow-up statement
639
WWUS51 KPHI 220018
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
818 PM EDT THU AUG 21 2014
NJC037-220025-
/O.CAN.KPHI.SV.W.0152.000000T0000Z-140822T0030Z/
SUSSEX NJ-
818 PM EDT THU AUG 21 2014
...THE SEVERE THUNDERSTORM WARNING FOR SUSSEX COUNTY IS CANCELLED...
THUNDERSTORMS CONTINUE OVER MUCH OF SUSSEX COUNTY...HOWEVER THEY
APPEAR TO HAVE WEAKENED SOMEWHAT AND NO REPORTS OF LARGE HAIL OR
DAMAGING WINDS HAVE BEEN RECEIVED BY THE NWS. A FLOOD ADVISORY
CONTINUES IN EFFECT FOR THE COUNTY AS CONTINUING STORMS WILL LIKELY
PRODUCE ADDITIONAL HEAVY RAIN AND LOCALIZED FLOODING.
LAT...LON 4125 7445 4120 7437 4091 7472 4092 7474
4110 7497 4118 7489 4119 7489 4135 7475
4136 7469
TIME...MOT...LOC 0015Z 276DEG 16KT 4124 7437
$$
AMCThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 21, 6:31 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 59 min |
| Aug 21, 7:44 PM EDT | Areal Flood Advisory | PHI | Sussex | 4 hr |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2014Every severe thunderstorm warning in 2014
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.