Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2015
Severe Thunderstorm Warning 33, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 8, 2015, 6:16 PM EDT for 4 counties in Pennsylvania; Hunterdon County, Warren County, New Jersey. It was in force for 59 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 8, 2015, 6:16 PM EDT (22:16 UTC)
- Expired
- Jun 8, 2015, 7:15 PM EDT
- In force
- 59 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Hunterdon County, NJ, Warren County, NJ, Berks County, PA, Bucks County, PA, Lehigh County, PA, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 88 km from the middle of the area, began a volume at 22:19 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 8, 6:20 PM EDT | TSTM WND DMG | Alburtis, PA | NUMEROUS TREES AND WIRES DOWN IN ALBURTIS AND MACUNGIE. SOME ROADS CLOSED. 1606 CUSTOMERS WITHOUT POWER IN LOWER MACGUNGIE TOWNSHIP. INITIAL REPORT RELAYED BY EPAWA. |
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 8, 4:13 PM EDT | Tornado Watch | SPC | 4 hr |
The nearest sounding before it
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 10.3 hours before the alert went out and 135 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
- 1116 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 333 m²/s²
- 0-3 km storm-relative helicity
- 360 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
204
WUUS51 KPHI 082216
SVRPHI
NJC019-041-PAC011-017-077-095-082315-
/O.NEW.KPHI.SV.W.0033.150608T2216Z-150608T2315Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
616 PM EDT MON JUN 8 2015
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHWESTERN WARREN COUNTY IN NORTHWESTERN NEW JERSEY...
HUNTERDON COUNTY IN NORTHWESTERN NEW JERSEY...
LEHIGH COUNTY IN EASTERN PENNSYLVANIA...
NORTHWESTERN BUCKS COUNTY IN SOUTHEASTERN PENNSYLVANIA...
SOUTHERN NORTHAMPTON COUNTY IN EASTERN PENNSYLVANIA...
NORTHEASTERN BERKS COUNTY IN EASTERN PENNSYLVANIA...
* UNTIL 715 PM EDT
* AT 616 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
CAPABLE OF PRODUCING HALF DOLLAR SIZE HAIL AND DESTRUCTIVE WINDS IN
EXCESS OF 70 MPH. THIS STORM WAS LOCATED OVER ANCIENT OAKS...OR 7
MILES SOUTHWEST OF ALLENTOWN...AND MOVING EAST AT 40 MPH.
* LOCATIONS IMPACTED INCLUDE...
ALLENTOWN...EASTON...BETHLEHEM...FORKS...EMMAUS...NORTHAMPTON...
QUAKERTOWN...PERKASIE...BYRAM...WILSON...BEDMINSTER...HELLERTOWN...
KUTZTOWN...FLEMINGTON...TINICUM...HIGH BRIDGE...CLINTON...NEW
HOPE...ALPHA AND DUBLIN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT FOR THE AREA. ALTHOUGH A TORNADO IS
NOT IMMEDIATELY LIKELY...IF ONE IS SPOTTED...ACT QUICKLY AND MOVE TO
A PLACE OF SAFETY IN A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...LARGE HAIL...DEADLY
LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION...MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY
RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER
COVERS THE ROAD.
&&
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT FOR NORTHWESTERN
NEW JERSEY AND SOUTHEASTERN PENNSYLVANIA.
LAT...LON 4073 7482 4038 7484 4038 7487 4035 7486
4034 7494 4033 7494 4040 7545 4045 7553
4041 7556 4043 7580 4068 7581
TIME...MOT...LOC 2216Z 272DEG 36KT 4055 7560
$$
NIERENBERG1 follow-up statement
597
WWUS51 KPHI 082255
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
655 PM EDT MON JUN 8 2015
PAC011-077-082303-
/O.CAN.KPHI.SV.W.0033.000000T0000Z-150608T2315Z/
LEHIGH PA-BERKS PA-
655 PM EDT MON JUN 8 2015
...THE SEVERE THUNDERSTORM WARNING THE FOLLOWING COUNTIES...
LEHIGH AND BERKS
COUNTIES IS CANCELLED...
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF
THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.
LAT...LON 4073 7482 4038 7484 4038 7487 4035 7486
4034 7494 4033 7494 4040 7545 4044 7545
4047 7540 4054 7532 4066 7539
TIME...MOT...LOC 2253Z 272DEG 36KT 4054 7511
$$
NJC019-041-PAC017-095-082315-
/O.CON.KPHI.SV.W.0033.000000T0000Z-150608T2315Z/
WARREN NJ-HUNTERDON NJ-BUCKS PA-NORTHAMPTON PA-
655 PM EDT MON JUN 8 2015
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM EDT
COUNTIES WARREN...HUNTERDON... NORTHWESTERN BUCKS AND SOUTHEASTERN
NORTHAMPTON COUNTIES...
AT 653 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE
OF PRODUCING HALF DOLLAR SIZE HAIL AND DESTRUCTIVE WINDS IN EXCESS OF
70 MPH. THIS STORM WAS LOCATED OVER MILFORD...OR 11 MILES SOUTHEAST
OF EASTON...MOVING EAST AT 40 MPH.
LOCATIONS IMPACTED INCLUDE...
EASTON...BETHLEHEM...QUAKERTOWN...PERKASIE...BYRAM...WILSON...
BEDMINSTER...HELLERTOWN...FLEMINGTON...TINICUM...HIGH BRIDGE...
CLINTON...NEW HOPE...ALPHA...DUBLIN...GLEN GARDNER...FERNDALE...
HAMPTON...FRENCHTOWN AND LEBANON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. ALTHOUGH A
TORNADO IS NOT IMMEDIATELY LIKELY...IF ONE IS SPOTTED...ACT QUICKLY
AND MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE...SUCH AS A
BASEMENT OR SMALL INTERIOR ROOM.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...LARGE HAIL...DEADLY
LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY
RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER
COVERS THE ROAD.
&&
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT FOR NORTHWESTERN
NEW JERSEY AND SOUTHEASTERN PENNSYLVANIA.
LAT...LON 4073 7482 4038 7484 4038 7487 4035 7486
4034 7494 4033 7494 4040 7545 4044 7545
4047 7540 4054 7532 4066 7539
TIME...MOT...LOC 2253Z 272DEG 36KT 4054 7511
$$
NIERENBERGThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 8, 4:34 PM EDT | Special Weather Statement | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 116 min |
| Jun 8, 5:17 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 58 min |
| Jun 8, 5:51 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh | 54 min |
| Jun 8, 6:15 PM EDT | Special Weather Statement | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 2 hr |
| Jun 8, 7:19 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Chester, Montgomery | 56 min |
| Jun 7, 9:41 PM EDT | Small Craft Advisory for Winds | PHI | 6 hr | |
| Jun 8, 3:32 AM EDT | Small Craft Advisory | PHI | 35 hr |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2015Severe Thunderstorm Warnings in New Jersey, 2015Every severe thunderstorm warning in 2015
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.