Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 135, NWS Philadelphia/Mount Holly

July 25, 2016Hunterdon County, Morris County, Warren County, New Jersey; 4 counties in Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 25, 2016, 3:52 PM EDT for Hunterdon County, Morris County, Warren County, New Jersey; 4 counties in Pennsylvania. It was in force for 53 min. 5 reports 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: Jul 25, 2016, 3:52 PM EDT (19:52 UTC)
Expired: Jul 25, 2016, 4:45 PM EDT
In force: 53 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

Counties Hunterdon County, NJ, Morris County, NJ, Warren County, NJ, Carbon County, PA, Lehigh County, PA, Monroe County, PA, Northampton County, PA

The radar

The Philadelphia radar (KDIX), 121 km from the middle of the area, began a volume at 19:54 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
Jul 25, 4:20 PM EDT	TSTM WND GST 62	Bath, PA
Jul 25, 4:20 PM EDT	TSTM WND GST 68	S Bath, PA
Jul 25, 4:25 PM EDT	TSTM WND DMG	Nazareth, PA	BRUSH FIRE CAUSED BY DOWN POWER LINES ALONG GEORGETOWN ROAD
Jul 25, 4:30 PM EDT	TSTM WND DMG	Bushkill Twp, PA	SOME TREES DOWN. TIME ESTIMATED FROM RADAR.
Jul 25, 4:39 PM EDT	TSTM WND GST 52	Newburg, PA

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
Jul 25, 12:43 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 7.9 hours before the alert went out and 204 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 136 J/kg
Mixed-layer CIN: -103 J/kg
Mixed-layer LCL: 1205 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 60 m²/s²
0-3 km storm-relative helicity: 34 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

379 
WUUS51 KPHI 251952
SVRPHI
NJC019-027-041-PAC025-077-089-095-252045-
/O.NEW.KPHI.SV.W.0135.160725T1952Z-160725T2045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
352 PM EDT MON JUL 25 2016

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ  HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WARREN COUNTY IN NORTHWESTERN NEW JERSEY...
  NORTHEASTERN HUNTERDON COUNTY IN NORTHWESTERN NEW JERSEY...
  SOUTHWESTERN MORRIS COUNTY IN NORTHERN NEW JERSEY...
  NORTHAMPTON COUNTY IN EASTERN PENNSYLVANIA...
  NORTHWESTERN LEHIGH COUNTY IN EASTERN PENNSYLVANIA...
  SOUTHERN MONROE COUNTY IN NORTHEASTERN PENNSYLVANIA...
  SOUTHEASTERN CARBON COUNTY IN NORTHEASTERN PENNSYLVANIA...

* UNTIL 445 PM EDT

* AT 351 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER
  DANIELSVILLE... OR 10 MILES EAST OF LEHIGHTON...MOVING EAST AT 40
  MPH.

  HAZARD...60 MPH WIND GUSTS AND NICKEL SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  EASTON...LEHIGHTON...FORKS...NORTHAMPTON...EAST STROUDSBURG...
  HACKETTSTOWN...WILSON...WASHINGTON...BLAIRSTOWN...NAZARETH...
  PALMERTON...BANGOR...JIM THORPE...SLATINGTON...HIGH BRIDGE...
  PEN ARGYL...WIND GAP...BATH...BELVIDERE AND HARMONY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO 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.

&&

LAT...LON 4093 7478 4070 7472 4067 7473 4068 7578
      4072 7579 4074 7576 4076 7579 4094 7581
      4104 7491
TIME...MOT...LOC 1951Z 268DEG 37KT 4083 7552 

HAIL...0.88IN
WIND...60MPH
 
$$

GORSE

1 follow-up statement

553 
WWUS51 KPHI 252027
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
427 PM EDT MON JUL 25 2016

PAC077-252036-
/O.CAN.KPHI.SV.W.0135.000000T0000Z-160725T2045Z/
LEHIGH PA-
427 PM EDT MON JUL 25 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN LEHIGH COUNTY IS
CANCELLED...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF
THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT FOR
NORTHERN AND NORTHWESTERN NEW JERSEY...AND EASTERN AND NORTHEASTERN
PENNSYLVANIA.

LAT...LON 4092 7478 4070 7472 4067 7473 4068 7550
      4074 7553 4096 7555 4104 7491
TIME...MOT...LOC 2026Z 269DEG 21KT 4081 7521 

$$

NJC019-027-041-PAC025-089-095-252045-
/O.CON.KPHI.SV.W.0135.000000T0000Z-160725T2045Z/
WARREN NJ-HUNTERDON NJ-MORRIS NJ-NORTHAMPTON PA-MONROE PA-CARBON PA-
427 PM EDT MON JUL 25 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM EDT
FOR WARREN...NORTHEASTERN HUNTERDON...SOUTHWESTERN MORRIS...
NORTHAMPTON...SOUTHERN MONROE AND EAST CENTRAL CARBON COUNTIES...

AT 426 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR BANGOR...OR 8
MILES NORTH OF EASTON...MOVING EAST AT 25 MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO 
         ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
EASTON...FORKS...NORTHAMPTON...EAST STROUDSBURG...HACKETTSTOWN...
WILSON...WASHINGTON...BLAIRSTOWN...NAZARETH...BANGOR...HIGH BRIDGE...
PEN ARGYL...WIND GAP...BATH...BELVIDERE...HARMONY...OXFORD...HOPE...
GLEN GARDNER AND BELFAST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

LAT...LON 4092 7478 4070 7472 4067 7473 4068 7550
      4074 7553 4096 7555 4104 7491
TIME...MOT...LOC 2026Z 269DEG 21KT 4081 7521 

HAIL...1.00IN
WIND...60MPH
 
$$

GORSE

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 25, 4:46 AM EDT	Special Weather Statement	PHI	Burlington, Camden, Mercer	59 min
Jul 25, 4:54 AM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Gloucester	51 min
Jul 25, 5:27 AM EDT	Special Weather Statement	PHI	Burlington, Ocean	63 min
Jul 25, 6:17 AM EDT	Special Marine Warning	PHI		88 min
Jul 25, 7:11 AM EDT	Special Marine Warning	PHI		64 min
Jul 25, 7:59 AM EDT	Special Weather Statement	PHI	Ocean	61 min
Jul 25, 8:04 AM EDT	Special Marine Warning	PHI		56 min
Jul 25, 9:00 AM EDT	Special Marine Warning	PHI		60 min
Jul 25, 4:34 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Somerset, Sussex, Warren	56 min
Jul 25, 4:37 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer, Middlesex, Somerset	38 min
Jul 25, 5:04 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	41 min
Jul 25, 5:15 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer, Middlesex, Somerset	45 min
Jul 25, 5:39 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Sussex, Warren	46 min
Jul 25, 5:57 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Warren	48 min
Jul 25, 5:58 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Mercer, Middlesex, Monmouth	47 min
Jul 25, 6:01 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden	44 min
Jul 25, 6:04 PM EDT	Special Marine Warning	PHI		56 min
Jul 25, 6:17 PM EDT	Flash Flood Warning	PHI	Mercer, Middlesex, Monmouth, Somerset	4 hr
Jul 25, 6:39 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer, Middlesex, Monmouth, Somerset	40 min
Jul 25, 6:43 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Ocean	62 min
Jul 25, 6:54 PM EDT	Special Marine Warning	PHI		66 min
Jul 25, 6:55 PM EDT	Areal Flood Advisory	PHI	Burlington	2 hr
Jul 25, 7:12 PM EDT	Special Weather Statement	PHI	Burlington, Camden, Ocean	63 min
Jul 25, 7:17 PM EDT	Flash Flood Warning	PHI	Burlington, Camden	4 hr
Jul 25, 7:53 PM EDT	Special Weather Statement	PHI	Atlantic	37 min
Jul 25, 7:58 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Ocean	44 min
Jul 25, 3:21 AM EDT	Special Weather Statement	PHI	Chester, Montgomery	39 min
Jul 25, 3:55 AM EDT	Special Weather Statement	PHI	Bucks, Delaware, Montgomery, Philadelphia	50 min
Jul 25, 4:19 AM EDT	Severe Thunderstorm Warning	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	41 min
Jul 25, 3:15 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Monroe	45 min
Jul 25, 4:00 PM EDT	Special Weather Statement	PHI	Lehigh	30 min
Jul 25, 5:19 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Carbon, Lehigh, Northampton	56 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2016 Severe Thunderstorm Warnings in New Jersey, 2016 Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.