Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 118, NWS Philadelphia/Mount Holly

July 13, 20144 counties in Pennsylvania; Warren County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 13, 2014, 9:33 PM EDT for 4 counties in Pennsylvania; Warren County, New Jersey. It was in force for 57 min. 4 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 13, 2014, 9:33 PM EDT (01:33 UTC)
Expired: Jul 13, 2014, 10:30 PM EDT
In force: 57 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon

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

The radar

The Philadelphia radar (KDIX), 128 km from the middle of the area, began a volume at 01:36 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 13, 9:45 PM EDT	TSTM WND DMG	Jackson Twp, PA	TREES DOWN.
Jul 13, 9:45 PM EDT	TSTM WND DMG	Jackson Twp, PA	TREES DOWN.
Jul 13, 10:00 PM EDT	TSTM WND DMG	Stroudsburg, PA	TREES DOWN.
Jul 13, 10:00 PM EDT	TSTM WND DMG	Tatamy, PA	A FEW TREES DOWN AROUND THE COUNTY.

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 13, 7:49 PM EDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 00:00Z, 1.6 hours before the alert went out and 202 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: 30 J/kg
Mixed-layer CIN: -231 J/kg
Mixed-layer LCL: 891 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 159 m²/s²
0-3 km storm-relative helicity: 185 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

886 
WUUS51 KPHI 140133
SVRPHI
NJC041-PAC025-077-089-095-140230-
/O.NEW.KPHI.SV.W.0118.140714T0133Z-140714T0230Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
933 PM EDT SUN JUL 13 2014

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WARREN COUNTY IN NORTHWEST NEW JERSEY...
  NORTHERN LEHIGH COUNTY IN EASTERN PENNSYLVANIA...
  SOUTHERN MONROE COUNTY IN NORTHEAST PENNSYLVANIA...
  EASTERN CARBON COUNTY IN NORTHEAST PENNSYLVANIA...
  NORTHAMPTON COUNTY IN EASTERN PENNSYLVANIA...

* UNTIL 1030 PM EDT

* AT 930 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS. THESE SEVERE STORMS EXTENDED FROM
  POCONO RACEWAY TO TRACHSVILLE TO NEW TRIPOLI...MOVING EAST AT 30
  MPH. THESE STORMS ARE CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH. 

* SEVERE THUNDERSTORMS WILL BE NEAR...
  SCHNECKSVILLE AND NEFFS AROUND 940 PM EDT...
  BRODHEADSVILLE AND ROSSLAND AROUND 945 PM EDT...
  TANNERSVILLE AND SCOTRUN AROUND 950 PM EDT...
  WIND GAP AROUND 955 PM EDT...
  ANALOMINK AND STORMVILLE AROUND 1000 PM EDT...
  EAST STROUDSBURG AND EAST BANGOR AROUND 1005 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE WINDS OF MORE THAN 57 MPH...OR HAIL ONE
INCH OR LARGER.

VERY HEAVY RAIN WILL ALSO OCCUR WITH THIS LINE OF SEVERE
THUNDERSTORMS...WHICH COULD FLOOD LOW LYING AREAS QUICKLY AND COVER
ROADS WITH WATER. DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE
ROAD.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT
SUNDAY EVENING FOR NORTHERN DELAWARE AND NORTHEASTERN MARYLAND AND
NEW JERSEY AND EASTERN PENNSYLVANIA.

&&

LAT...LON 4108 7495 4089 7483 4064 7510 4063 7582
      4086 7565 4111 7559
TIME...MOT...LOC 0133Z 270DEG 27KT 4103 7549 4086 7551
          4064 7573

$$

FORECASTER:  DRAG

1 follow-up statement

671 
WWUS51 KPHI 140209
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1009 PM EDT SUN JUL 13 2014

PAC025-140219-
/O.CAN.KPHI.SV.W.0118.000000T0000Z-140714T0230Z/
CARBON PA-
1009 PM EDT SUN JUL 13 2014

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN CARBON COUNTY IS
CANCELLED...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT
SUNDAY EVENING FOR NORTHERN DELAWARE AND NORTHEASTERN MARYLAND AND
NEW JERSEY AND EASTERN PENNSYLVANIA.

LAT...LON 4108 7495 4089 7483 4064 7510 4063 7582
      4087 7531 4109 7519
TIME...MOT...LOC 0209Z 270DEG 27KT 4106 7513 4084 7513
          4066 7523

$$

NJC041-PAC077-089-095-140230-
/O.CON.KPHI.SV.W.0118.000000T0000Z-140714T0230Z/
WARREN NJ-LEHIGH PA-MONROE PA-NORTHAMPTON PA-
1009 PM EDT SUN JUL 13 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1030 PM EDT
FOR NORTHAMPTON...SOUTHEASTERN MONROE...NORTHERN LEHIGH AND WARREN
COUNTIES...

AT 1007 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM MARSHALLS CREEK TO EAST BANGOR TO OLD ORCHARD...OR
ALONG A LINE EXTENDING FROM 12 MILES EAST OF MOUNT POCONO TO 11 MILES
NORTH OF EASTON TO EASTON...MOVING EAST AT 30 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  ECHO LAKE...PHILLIPSBURG...ROXBURG AND HARMONY BY 1015 PM EDT...
  WERRY LAKE AND HIDDEN LAKE BY 1020 PM EDT...
  MILLBROOK...PLEASANT VALLEY...OXFORD AND HOPE BY 1025 PM EDT...

THESE ARE STILL POTENTIALLY DANGEROUS STORMS. 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.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT
SUNDAY EVENING FOR NORTHERN DELAWARE AND NORTHEASTERN MARYLAND AND
NEW JERSEY AND EASTERN PENNSYLVANIA.

LAT...LON 4108 7495 4089 7483 4064 7510 4063 7582
      4087 7531 4109 7519
TIME...MOT...LOC 0209Z 270DEG 27KT 4106 7513 4084 7513
          4066 7523

$$


DRAG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 13, 8:04 PM EDT	Special Weather Statement	PHI	Carbon	71 min
Jul 13, 8:33 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Lehigh, Monroe, Northampton	57 min
Jul 13, 8:41 PM EDT	Special Weather Statement	PHI	Berks, Lehigh	2 hr
Jul 13, 9:04 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Lehigh	56 min
Jul 13, 9:16 PM EDT	Special Weather Statement	PHI	Northampton	89 min
Jul 13, 9:44 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Lehigh, Northampton	46 min
Jul 13, 10:06 PM EDT	Special Weather Statement	PHI	Berks	54 min
Jul 13, 10:14 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware	46 min
Jul 13, 10:41 PM EDT	Areal Flood Advisory	PHI	Berks, Bucks, Lehigh, Montgomery, Northampton	2 hr
Jul 13, 10:48 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware	37 min
Jul 13, 11:07 PM EDT	Special Weather Statement	PHI	Bucks, Montgomery	38 min
Jul 13, 11:21 PM EDT	Special Weather Statement	PHI	Delaware, Philadelphia	54 min
Jul 13, 11:27 PM EDT	Areal Flood Advisory	PHI	Bucks, Montgomery	2 hr
Jul 14, 3:54 AM EDT	Flash Flood Watch	PHI	Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more	45 hr
Jul 14, 3:43 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Montgomery	62 min
Jul 14, 4:38 PM EDT	Areal Flood Advisory	PHI	Chester	3 hr
Jul 14, 4:50 PM EDT	Areal Flood Advisory	PHI	Berks, Carbon, Lehigh, Monroe, Northampton	4 hr
Jul 14, 5:06 PM EDT	Special Weather Statement	PHI	Bucks	54 min
Jul 14, 5:09 PM EDT	Areal Flood Advisory	PHI	Bucks, Montgomery	3 hr
Jul 14, 5:16 PM EDT	Special Weather Statement	PHI	Lehigh, Northampton	59 min
Jul 14, 5:31 PM EDT	Flash Flood Warning	PHI	Bucks, Lehigh, Northampton	3 hr
Jul 14, 7:39 PM EDT	Areal Flood Advisory	PHI	Bucks, Delaware, Montgomery, Philadelphia	3 hr
Jul 14, 7:53 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	67 min
Jul 13, 10:18 PM EDT	Special Weather Statement	PHI	Hunterdon, Morris, Somerset	57 min
Jul 13, 10:27 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Somerset, Sussex, Warren	47 min
Jul 13, 11:05 PM EDT	Special Marine Warning	PHI		85 min
Jul 13, 11:47 PM EDT	Special Weather Statement	PHI	Mercer, Middlesex	43 min
Jul 14, 4:02 AM EDT	Small Craft Advisory	PHI		24 hr
Jul 14, 4:08 PM EDT	Special Weather Statement	PHI	Monmouth	52 min
Jul 14, 4:12 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth, Ocean	63 min
Jul 14, 4:17 PM EDT	Special Weather Statement	PHI	Sussex	58 min
Jul 14, 4:21 PM EDT	Areal Flood Advisory	PHI	Morris, Sussex	3 hr
Jul 14, 4:28 PM EDT	Flash Flood Warning	PHI	Monmouth, Ocean	4 hr
Jul 14, 5:33 PM EDT	Special Weather Statement	PHI	Monmouth	57 min
Jul 14, 5:54 PM EDT	Areal Flood Advisory	PHI	Hunterdon, Morris, Warren	4 hr
Jul 14, 6:15 PM EDT	Flash Flood Warning	PHI	Hunterdon, Morris, Sussex, Warren	4 hr
Jul 14, 6:54 PM EDT	Areal Flood Advisory	PHI	Hunterdon, Mercer, Middlesex, Somerset	3 hr
Jul 14, 7:03 PM EDT	Severe Thunderstorm Warning	PHI	Salem	42 min
Jul 14, 7:17 PM EDT	Special Weather Statement	PHI	Mercer	58 min
Jul 14, 7:29 PM EDT	Severe Thunderstorm Warning	PHI	Gloucester, Salem	46 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2014 Severe Thunderstorm Warnings in New Jersey, 2014 Every 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.