Alert archive / New Jersey / Severe Thunderstorm Warnings in 2014
Severe Thunderstorm Warning 165, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Sep 6, 2014, 9:04 PM EDT for Bucks County, Northampton County, Pennsylvania; 5 counties in 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
- Sep 6, 2014, 9:04 PM EDT (01:04 UTC)
- Expired
- Sep 6, 2014, 9:46 PM EDT
- In force
- 42 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Hunterdon County, NJ, Mercer County, NJ, Morris County, NJ, Somerset County, NJ, Warren County, NJ, Bucks County, PA, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 79 km from the middle of the area, began a volume at 01:07 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 |
|---|---|---|---|
| Sep 6, 9:34 PM EDT | TSTM WND GST 50 | Springfield Twp, PA |
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 00:00Z, 1.1 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
- 1079 J/kg
- Mixed-layer CIN
- -129 J/kg
- Mixed-layer LCL
- 1281 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 98 m²/s²
- 0-3 km storm-relative helicity
- 112 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
241 WUUS51 KPHI 070104 SVRPHI NJC019-021-027-035-041-PAC017-095-070200- /O.NEW.KPHI.SV.W.0165.140907T0104Z-140907T0200Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 904 PM EDT SAT SEP 6 2014 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN WARREN COUNTY IN NORTHWEST NEW JERSEY... HUNTERDON COUNTY IN NORTHWEST NEW JERSEY... NORTHWESTERN MERCER COUNTY IN CENTRAL NEW JERSEY... SOUTHWESTERN MORRIS COUNTY IN NORTHERN NEW JERSEY... WESTERN SOMERSET COUNTY IN NORTHERN NEW JERSEY... NORTHERN BUCKS COUNTY IN SOUTHEAST PENNSYLVANIA... SOUTH CENTRAL NORTHAMPTON COUNTY IN EASTERN PENNSYLVANIA... * UNTIL 1000 PM EDT * AT 901 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM. THE STORM WAS NEAR RIEGELSVILLE...MOVING EAST AT 25 MPH. THIS STORM IS CAPABLE OF PRODUCING QUARTER SIZE HAIL... AND DAMAGING WINDS IN EXCESS OF 60 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... ALPHA AND REVERE AROUND 910 PM EDT... PIPERSVILLE AROUND 915 PM EDT... MILFORD AND BLOOMSBURY AROUND 920 PM EDT... FRENCHTOWN AND BYRAM AROUND 925 PM EDT... PLEASANT VALLEY AND WASHINGTON AROUND 930 PM EDT... HAMPTON AND STOCKTON AROUND 935 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 4029 7473 4049 7533 4070 7532 4082 7468 TIME...MOT...LOC 0104Z 274DEG 20KT 4060 7520 $$ FORECASTER: SFJ
2 follow-up statements
594 WWUS51 KPHI 070134 SVSPHI SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 934 PM EDT SAT SEP 6 2014 PAC095-070143- /O.CAN.KPHI.SV.W.0165.000000T0000Z-140907T0200Z/ NORTHAMPTON PA- 934 PM EDT SAT SEP 6 2014 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL NORTHAMPTON COUNTY IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE COUNTY. THUS THE WARNING HAS BEEN CANCELLED. LAT...LON 4043 7513 4074 7511 4082 7468 4029 7473 TIME...MOT...LOC 0133Z 274DEG 20KT 4058 7484 $$ NJC019-021-027-035-041-PAC017-070200- /O.CON.KPHI.SV.W.0165.000000T0000Z-140907T0200Z/ WARREN NJ-HUNTERDON NJ-MERCER NJ-MORRIS NJ-SOMERSET NJ-BUCKS PA- 934 PM EDT SAT SEP 6 2014 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM EDT FOR NORTH CENTRAL BUCKS...WESTERN SOMERSET...SOUTHWESTERN MORRIS... NORTHWESTERN MERCER...HUNTERDON AND SOUTHERN WARREN COUNTIES... AT 929 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 CLINTON...OR 14 MILES WEST OF SOMERVILLE...MOVING EAST AT 25 MPH. THE SEVERE THUNDERSTORM WILL BE NEAR... WHITE HOUSE STATION BY 940 PM EDT... 6 MILES NORTH OF CLOVERHILL BY 945 PM EDT... 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 4043 7513 4074 7511 4082 7468 4029 7473 TIME...MOT...LOC 0133Z 274DEG 20KT 4058 7484 $$ SFJ
956 WWUS51 KPHI 070146 SVSPHI SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 946 PM EDT SAT SEP 6 2014 NJC019-021-027-035-041-PAC017-070156- /O.CAN.KPHI.SV.W.0165.000000T0000Z-140907T0200Z/ WARREN NJ-HUNTERDON NJ-MERCER NJ-MORRIS NJ-SOMERSET NJ-BUCKS PA- 946 PM EDT SAT SEP 6 2014 ...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL BUCKS...WESTERN SOMERSET...SOUTHWESTERN MORRIS...NORTHWESTERN MERCER...HUNTERDON AND SOUTHERN WARREN COUNTIES IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED. THUS...THE WARNING HAS BEEN CANCELLED. LAT...LON 4043 7513 4074 7511 4082 7468 4029 7473 TIME...MOT...LOC 0146Z 274DEG 20KT 4057 7474 $$ SFJ
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 6, 8:27 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Chester, Lehigh, Montgomery, Northampton | 63 min |
| Sep 6, 9:30 PM EDT | Special Weather Statement | PHI | Bucks, Montgomery, Philadelphia | 60 min |
| Sep 6, 8:13 PM EDT | Special Marine Warning | PHI | 62 min | |
| Sep 6, 8:41 PM EDT | Special Weather Statement | PHI | Morris, Sussex, Warren | 64 min |
| Sep 6, 9:39 PM EDT | Special Marine Warning | PHI | 66 min | |
| Sep 6, 9:50 PM EDT | Special Weather Statement | PHI | Morris | 55 min |
| Sep 6, 10:06 PM EDT | Special Weather Statement | PHI | Salem | 24 min |
| Sep 6, 11:00 PM EDT | Special Weather Statement | PHI | Atlantic | 30 min |
| Sep 7, 3:35 AM EDT | Small Craft Advisory | PHI | 4 days |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2014Severe Thunderstorm Warnings in Pennsylvania, 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.