Alert archive / New Jersey / Severe Thunderstorm Warnings in 2013
Severe Thunderstorm Warning 39, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 24, 2013, 5:18 PM EDT for Northampton County, Pennsylvania; Hunterdon County, Warren County, New Jersey. It was in force for 42 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
- Jun 24, 2013, 5:18 PM EDT (21:18 UTC)
- Expired
- Jun 24, 2013, 6:00 PM EDT
- In force
- 42 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Hunterdon County, NJ, Warren County, NJ, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 109 km from the middle of the area, began a volume at 21:20 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 |
|---|---|---|---|
| Jun 24, 5:32 PM EDT | HAIL 0.75 | Forks Twp, PA | 43 MPH WIND GUST. |
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 |
|---|---|---|---|
| Jun 24, 2:44 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 9.3 hours before the alert went out and 169 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
- 705 J/kg
- Mixed-layer CIN
- -105 J/kg
- Mixed-layer LCL
- 1279 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 16 m²/s²
- 0-3 km storm-relative helicity
- 55 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
622 WUUS51 KPHI 242118 SVRPHI NJC019-041-PAC095-242200- /O.NEW.KPHI.SV.W.0039.130624T2118Z-130624T2200Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 518 PM EDT MON JUN 24 2013 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN WARREN COUNTY IN NORTHWEST NEW JERSEY... NORTHWESTERN HUNTERDON COUNTY IN NORTHWEST NEW JERSEY... EASTERN NORTHAMPTON COUNTY IN EASTERN PENNSYLVANIA... * UNTIL 600 PM EDT * AT 516 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM. THE STORM WAS NEAR NAZARETH...MOVING EAST AT 20 MPH. THIS STORM IS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... TATAMY AND WILSON AROUND 525 PM EDT... FORKS AND EASTON AROUND 530 PM EDT... ALPHA AROUND 535 PM EDT... HARMONY AROUND 540 PM EDT... ROXBURG AND BLOOMSBURY AROUND 550 PM EDT... BELVIDERE AROUND 555 PM EDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... SEVERE THUNDERSTORMS CREATE WINDS OF MORE THAN 57 MPH...OR HAIL ONE INCH OR LARGER. && LAT...LON 4093 7489 4057 7492 4066 7537 4082 7536 TIME...MOT...LOC 2118Z 265DEG 18KT 4074 7530 $$ IOVINO
1 follow-up statement
809 WWUS51 KPHI 242132 SVSPHI SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 532 PM EDT MON JUN 24 2013 NJC019-041-PAC095-242200- /O.CON.KPHI.SV.W.0039.000000T0000Z-130624T2200Z/ WARREN NJ-HUNTERDON NJ-NORTHAMPTON PA- 532 PM EDT MON JUN 24 2013 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM EDT FOR EASTERN NORTHAMPTON...NORTHWESTERN HUNTERDON AND SOUTHERN WARREN COUNTIES... AT 530 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR TATAMY AND EASTON...MOVING EAST AT 20 MPH. THE SEVERE THUNDERSTORM WILL BE NEAR... HARMONY AND ALPHA AROUND 540 PM EDT... ROXBURG AND BLOOMSBURY AROUND 550 PM EDT... BELVIDERE AROUND 555 PM EDT... BRASS CASTLE AND PLEASANT VALLEY AROUND 600 PM EDT... LAT...LON 4084 7526 4093 7489 4057 7492 4064 7528 TIME...MOT...LOC 2132Z 265DEG 18KT 4075 7521 $$ IOVINO
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 24, 1:22 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 53 min |
| Jun 24, 2:07 PM EDT | Areal Flood Advisory | PHI | Chester, Delaware | 3 hr |
| Jun 24, 2:32 PM EDT | Special Weather Statement | PHI | Chester, Delaware, Philadelphia | 58 min |
| Jun 24, 3:40 PM EDT | Special Weather Statement | PHI | Lehigh, Northampton | 50 min |
| Jun 24, 4:50 PM EDT | Special Weather Statement | PHI | Northampton | 40 min |
| Jun 24, 6:25 PM EDT | Special Weather Statement | PHI | Chester | 50 min |
| Jun 24, 7:47 PM EDT | Severe Thunderstorm Warning | PHI | Delaware, Philadelphia | 58 min |
| Jun 24, 3:23 PM EDT | Special Weather Statement | PHI | Burlington, Camden, Gloucester, Monmouth | 52 min |
| Jun 24, 3:25 PM EDT | Areal Flood Advisory | PHI | Burlington, Camden, Gloucester, Mercer, Middlesex, Monmouth and 2 more | 3 hr |
| Jun 24, 3:42 PM EDT | Flash Flood Warning | PHI | Burlington, Mercer, Middlesex, Monmouth, Ocean | 3 hr |
| Jun 24, 4:03 PM EDT | Special Marine Warning | PHI | 117 min | |
| Jun 24, 4:16 PM EDT | Special Weather Statement | PHI | Ocean | 59 min |
| Jun 24, 4:28 PM EDT | Severe Thunderstorm Warning | PHI | Ocean | 62 min |
| Jun 24, 5:59 PM EDT | Special Weather Statement | PHI | Hunterdon | 31 min |
| Jun 24, 6:29 PM EDT | Special Weather Statement | PHI | Sussex | 31 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2013Severe Thunderstorm Warnings in Pennsylvania, 2013Every severe thunderstorm warning in 2013
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.