Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2016
Severe Thunderstorm Warning 91, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 9, 2016, 8:14 PM EDT for 5 counties in Pennsylvania; Hunterdon County, Warren County, New Jersey. It was in force for 46 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 9, 2016, 8:14 PM EDT (00:14 UTC)
- Expired
- Jul 9, 2016, 9:00 PM EDT
- In force
- 46 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Hunterdon County, NJ, Warren County, NJ, Berks County, PA, Bucks County, PA, Lehigh County, PA, Montgomery County, PA, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 89 km from the middle of the area, began a volume at 00:14 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.
The nearest sounding before it
Brookhaven, NY (KOKX), launched 00:00Z, 0.2 hours before the alert went out and 199 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
- 1 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 481 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 65 m²/s²
- 0-3 km storm-relative helicity
- 87 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted.
856 WUUS51 KPHI 100014 SVRPHI NJC019-041-PAC011-017-077-091-095-100100- /O.NEW.KPHI.SV.W.0091.160710T0014Z-160710T0100Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 814 PM EDT SAT JUL 9 2016 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHWESTERN WARREN COUNTY IN NORTHWESTERN NEW JERSEY... CENTRAL HUNTERDON COUNTY IN NORTHWESTERN NEW JERSEY... SOUTHEASTERN NORTHAMPTON COUNTY IN EASTERN PENNSYLVANIA... SOUTHEASTERN LEHIGH COUNTY IN EASTERN PENNSYLVANIA... EAST CENTRAL BERKS COUNTY IN EASTERN PENNSYLVANIA... BUCKS COUNTY IN SOUTHEASTERN PENNSYLVANIA... CENTRAL MONTGOMERY COUNTY IN SOUTHEASTERN PENNSYLVANIA... * UNTIL 900 PM EDT * AT 814 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE EXTENDING FROM BETHLEHEM TO NEAR BECHTELSVILLE...MOVING EAST AT 30 MPH. HAZARD...60 MPH WIND GUSTS. SOURCE...RADAR INDICATED. IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. * LOCATIONS IMPACTED INCLUDE... ALLENTOWN...EASTON...BETHLEHEM...LANSDALE...EAST NORRITON... EMMAUS...QUAKERTOWN...PERKASIE...DOYLESTOWN...BYRAM...WILSON... SOUDERTON...BEDMINSTER...AMBLER...HELLERTOWN...FLEMINGTON... CHALFONT...TINICUM...HATFIELD AND EAST GREENVILLE. 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 THESE STORMS...AND MAY LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. && LAT...LON 4061 7472 4009 7524 4044 7581 4072 7536 TIME...MOT...LOC 0014Z 287DEG 26KT 4064 7538 4042 7566 HAIL...<.75IN WIND...60MPH $$ MEOLA
3 follow-up statements
494
WWUS51 KPHI 100037
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
837 PM EDT SAT JUL 9 2016
NJC041-PAC011-100046-
/O.CAN.KPHI.SV.W.0091.000000T0000Z-160710T0100Z/
WARREN NJ-BERKS PA-
837 PM EDT SAT JUL 9 2016
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN WARREN AND EAST
CENTRAL BERKS COUNTIES IS CANCELLED...
THE STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE WARNED
AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.
LAT...LON 4015 7518 4041 7556 4044 7553 4046 7554
4067 7531 4066 7519 4059 7519 4065 7510
4061 7472
TIME...MOT...LOC 0036Z 288DEG 25KT 4054 7520 4043 7545
$$
NJC019-PAC017-077-091-095-100100-
/O.CON.KPHI.SV.W.0091.000000T0000Z-160710T0100Z/
HUNTERDON NJ-NORTHAMPTON PA-LEHIGH PA-BUCKS PA-MONTGOMERY PA-
837 PM EDT SAT JUL 9 2016
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM EDT
FOR CENTRAL HUNTERDON...SOUTH CENTRAL NORTHAMPTON...SOUTHEASTERN
LEHIGH...BUCKS AND NORTHEASTERN MONTGOMERY COUNTIES...
AT 836 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM FERNDALE TO GERYVILLE...MOVING EAST AT 30 MPH.
HAZARD...60 MPH WIND GUSTS.
SOURCE...RADAR INDICATED.
IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES.
LOCATIONS IMPACTED INCLUDE...
EASTON...BETHLEHEM...LANSDALE...QUAKERTOWN...PERKASIE...DOYLESTOWN...
BYRAM...SOUDERTON...BEDMINSTER...HELLERTOWN...FLEMINGTON...
CHALFONT...TINICUM...HATFIELD...EAST GREENVILLE...CLINTON...NEW
HOPE...DUBLIN...FERNDALE AND FRENCHTOWN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
IN ADDITION TO 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 THESE STORMS...AND MAY LEAD TO
POOR DRAINAGE FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.
&&
LAT...LON 4015 7518 4041 7556 4044 7553 4046 7554
4067 7531 4066 7519 4059 7519 4065 7510
4061 7472
TIME...MOT...LOC 0036Z 288DEG 25KT 4054 7520 4043 7545
HAIL...<.75IN
WIND...60MPH
$$
JRK282
WWUS51 KPHI 100053
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
853 PM EDT SAT JUL 9 2016
PAC077-091-095-100102-
/O.CAN.KPHI.SV.W.0091.000000T0000Z-160710T0100Z/
NORTHAMPTON PA-LEHIGH PA-MONTGOMERY PA-
853 PM EDT SAT JUL 9 2016
...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL NORTHAMPTON...
SOUTHEASTERN LEHIGH AND NORTHEASTERN MONTGOMERY COUNTIES IS
CANCELLED...
THE STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF
THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.
LAT...LON 4024 7509 4031 7530 4041 7548 4059 7516
4057 7477
TIME...MOT...LOC 0052Z 283DEG 24KT 4055 7510 4043 7532
$$
NJC019-PAC017-100100-
/O.CON.KPHI.SV.W.0091.000000T0000Z-160710T0100Z/
HUNTERDON NJ-BUCKS PA-
853 PM EDT SAT JUL 9 2016
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM EDT
FOR SOUTHERN HUNTERDON AND NORTHWESTERN BUCKS COUNTIES...
AT 852 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM MILFORD TO QUAKERTOWN...MOVING EAST AT 25 MPH.
HAZARD...60 MPH WIND GUSTS.
SOURCE...RADAR INDICATED.
IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES.
LOCATIONS IMPACTED INCLUDE...
QUAKERTOWN...PERKASIE...DOYLESTOWN...BYRAM...BEDMINSTER...
FLEMINGTON...CHALFONT...TINICUM...NEW HOPE...DUBLIN...FERNDALE...
FRENCHTOWN...MILFORD...STOCKTON...FRICKS...SAND BROOK...
GARDENVILLE...SERGEANTSVILLE...REVERE AND OTTSVILLE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
IN ADDITION TO 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 THESE STORMS...AND MAY LEAD TO
POOR DRAINAGE FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.
&&
LAT...LON 4024 7509 4031 7530 4041 7548 4059 7516
4057 7477
TIME...MOT...LOC 0052Z 283DEG 24KT 4055 7510 4043 7532
HAIL...<.75IN
WIND...60MPH
$$
JRK628
WWUS51 KPHI 100100
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
900 PM EDT SAT JUL 9 2016
NJC019-PAC017-100109-
/O.EXP.KPHI.SV.W.0091.000000T0000Z-160710T0100Z/
HUNTERDON NJ-BUCKS PA-
900 PM EDT SAT JUL 9 2016
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN HUNTERDON AND
NORTHWESTERN BUCKS COUNTIES WILL EXPIRE AT 900 PM EDT...
THE STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE. HOWEVER GUSTY WINDS
AND HEAVY RAIN ARE STILL POSSIBLE WITH THESE THUNDERSTORMS.
TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
MOUNT HOLLY NJ.
LAT...LON 4024 7509 4031 7530 4041 7548 4059 7516
4057 7477
TIME...MOT...LOC 0057Z 287DEG 26KT 4055 7510 4043 7532
$$
JRKThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 9, 9:22 PM EDT | Special Weather Statement | PHI | Bucks | 38 min |
| Jul 9, 9:29 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 46 min |
| Jul 9, 9:48 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 27 min |
| Jul 9, 8:43 PM EDT | Special Weather Statement | PHI | Sussex | 32 min |
| Jul 9, 9:00 PM EDT | Special Weather Statement | PHI | Hunterdon, Mercer, Middlesex, Somerset | 60 min |
| Jul 9, 10:10 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer, Monmouth, Ocean | 50 min |
| Jul 9, 10:50 PM EDT | Special Weather Statement | PHI | Monmouth | 25 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2016Severe Thunderstorm Warnings in New Jersey, 2016Every severe thunderstorm warning in 2016
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.