Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 37, NWS Philadelphia/Mount Holly

June 19, 2017Carbon County, Monroe County, Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 19, 2017, 12:55 PM EDT for Carbon County, Monroe County, Pennsylvania. It was in force for 50 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
Jun 19, 2017, 12:55 PM EDT (16:55 UTC)
Expired
Jun 19, 2017, 1:45 PM EDT
In force
50 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Hail
0.88 in
Wind
60.0 mph

Counties Carbon County, PA, Monroe County, PA

The radar

The Binghamton radar (KBGM), 142 km from the middle of the area, began a volume at 16:57 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 19, 11:13 AM EDTSevere Thunderstorm WatchSPC9 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 4.9 hours before the alert went out and 234 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-pSkew-T log-p diagram, Brookhaven, NY at 12:00Z on 2017-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1007 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2017-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 193 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
1007 J/kg
Mixed-layer CIN
-84 J/kg
Mixed-layer LCL
659 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
193 m²/s²
0-3 km storm-relative helicity
184 m²/s²
Significant tornado parameter
0.2
Supercell composite
2.2

Open this sounding in Storm Lab

The text

As transmitted.

493 
WUUS51 KPHI 191655
SVRPHI
PAC025-089-191745-
/O.NEW.KPHI.SV.W.0037.170619T1655Z-170619T1745Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
1255 PM EDT MON JUN 19 2017

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Carbon County in northeastern Pennsylvania...
  Southwestern Monroe County in northeastern Pennsylvania...

* Until 145 PM EDT

* At 1254 PM EDT, a severe thunderstorm was located over Snyders, or
  near Tamaqua, moving northeast at 25 mph.

  HAZARD...60 mph wind gusts and nickel size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Expect damage to trees and power lines. 

* Locations impacted include...
  Lehighton, Palmerton, Jim Thorpe, Nesquehoning, Brodheadsville, New
  Mahoning, Gilbert, Lake Harmony, Albrightsville, Kresgeville, Sun
  Valley, Jonas, Meckesville, Beltzville State Park, Blakeslee, Penn
  Forest Reservoir, Christmans, Lansford, Summit Hill and
  Bowmanstown.

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.

&&

LAT...LON 4090 7532 4074 7577 4081 7587 4084 7591
      4096 7576 4113 7566 4112 7565 4114 7561
TIME...MOT...LOC 1654Z 230DEG 23KT 4076 7587 

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

JRK
2 follow-up statements
702 
WWUS51 KPHI 191725
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
125 PM EDT MON JUN 19 2017

PAC025-089-191745-
/O.CON.KPHI.SV.W.0037.000000T0000Z-170619T1745Z/
Carbon PA-Monroe PA-
125 PM EDT MON JUN 19 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 145 PM EDT
FOR EASTERN CARBON AND SOUTHWESTERN MONROE COUNTIES...

At 125 PM EDT, a severe thunderstorm was located over Beltzville
State Park, or near Lehighton, moving northeast at 25 mph.

HAZARD...60 mph wind gusts and nickel size hail. 

SOURCE...Radar indicated. 

IMPACT...Expect damage to trees and power lines. 

Locations impacted include...
Palmerton, Jim Thorpe, Brodheadsville, Beltzville State Park,
Gilbert, Lake Harmony, Blakeslee, Penn Forest Reservoir,
Albrightsville, Kresgeville, Christmans, Sun Valley, Jonas,
Meckesville, Effort, Trachsville, Fiddletown and Merwinsburg.

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.

&&

LAT...LON 4080 7562 4091 7574 4095 7574 4112 7565
      4114 7561 4090 7532
TIME...MOT...LOC 1725Z 235DEG 24KT 4087 7563 

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

Meola
293 
WWUS51 KPHI 191744
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
144 PM EDT MON JUN 19 2017

PAC025-089-191753-
/O.EXP.KPHI.SV.W.0037.000000T0000Z-170619T1745Z/
Carbon PA-Monroe PA-
144 PM EDT MON JUN 19 2017

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN CARBON AND
SOUTHWESTERN MONROE COUNTIES WILL EXPIRE AT 145 PM EDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses 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 this thunderstorm.

A severe thunderstorm watch remains in effect until 800 PM EDT for
northeastern Pennsylvania.

LAT...LON 4080 7562 4091 7574 4095 7574 4112 7565
      4114 7561 4090 7532
TIME...MOT...LOC 1743Z 230DEG 23KT 4094 7552 

$$

Meola

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 12:24 PM EDTSpecial Weather StatementPHIMonroe21 min
Jun 19, 12:44 PM EDTSpecial Weather StatementPHICarbon31 min
Jun 19, 12:46 PM EDTSpecial Weather StatementPHIBerks29 min
Jun 19, 1:25 PM EDTSpecial Weather StatementPHILehigh35 min
Jun 19, 1:29 PM EDTAreal Flood AdvisoryPHIBerks, Carbon, Lehigh, Monroe, Northampton4 hr
Jun 19, 1:42 PM EDTSpecial Weather StatementPHIBerks63 min
Jun 19, 2:08 PM EDTSevere Thunderstorm WarningPHIBerks52 min
Jun 19, 2:20 PM EDTSpecial Weather StatementPHINorthampton40 min
Jun 19, 2:25 PM EDTSpecial Weather StatementPHIBerks50 min
Jun 19, 2:38 PM EDTSpecial Weather StatementPHIPhiladelphia22 min
Jun 19, 2:43 PM EDTSpecial Weather StatementPHIBerks, Lehigh, Northampton47 min
Jun 19, 2:49 PM EDTSevere Thunderstorm WarningPHIBerks, Lehigh, Montgomery, Northampton41 min
Jun 19, 2:53 PM EDTSevere Thunderstorm WarningPHICarbon, Monroe52 min
Jun 19, 2:57 PM EDTSevere Thunderstorm WarningPHIMonroe, Northampton48 min
Jun 19, 3:08 PM EDTSevere Thunderstorm WarningPHIBerks, Chester, Montgomery52 min
Jun 19, 3:17 PM EDTFlash Flood WarningPHIMonroe3 hr
Jun 19, 3:24 PM EDTFlash Flood WarningPHICarbon, Lehigh, Monroe, Northampton3 hr
Jun 19, 3:25 PM EDTSpecial Weather StatementPHIChester50 min
Jun 19, 3:35 PM EDTAreal Flood AdvisoryPHIBerks, Bucks, Chester, Delaware, Montgomery, Philadelphia3 hr
Jun 19, 3:35 PM EDTSevere Thunderstorm WarningPHILehigh, Monroe, Northampton25 min
Jun 19, 3:53 PM EDTSevere Thunderstorm WarningPHIMonroe, Northampton37 min
Jun 19, 3:56 PM EDTSevere Thunderstorm WarningPHIBucks, Northampton49 min
Jun 19, 4:07 PM EDTSevere Thunderstorm WarningPHIChester, Delaware, Montgomery38 min
Jun 19, 4:07 PM EDTSevere Thunderstorm WarningPHIDelaware38 min
Jun 19, 4:34 PM EDTSevere Thunderstorm WarningPHIBucks, Chester, Delaware, Montgomery, Philadelphia41 min
Jun 19, 5:09 PM EDTSevere Thunderstorm WarningPHIBucks, Philadelphia51 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2017Every severe thunderstorm warning in 2017

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.