Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 3, NWS Philadelphia/Mount Holly

May 10, 2018Carbon County, Monroe County, Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at May 10, 2018, 6:17 PM EDT for Carbon County, Monroe County, Pennsylvania. It was in force for 43 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
May 10, 2018, 6:17 PM EDT (22:17 UTC)
Expired
May 10, 2018, 7:00 PM EDT
In force
43 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Carbon County, PA, Monroe County, PA

The radar

The Binghamton radar (KBGM), 138 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

TimeReportWhereRemark
May 10, 6:45 PM EDTHAIL 0.25Tobyhanna, PAPEA SIZED HAIL

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 10.3 hours before the alert went out and 211 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 2018-05-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2018-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 41 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
799 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
41 m²/s²
0-3 km storm-relative helicity
91 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

867 
WUUS51 KPHI 102217
SVRPHI
PAC025-089-102300-
/O.NEW.KPHI.SV.W.0003.180510T2217Z-180510T2300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
617 PM EDT THU MAY 10 2018

The National Weather Service in Mount Holly NJ has issued a

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

* Until 700 PM EDT.

* At 617 PM EDT, severe thunderstorms were located along a line
  extending from Bear Creek Village to near White Haven to near
  Hazleton, moving east at 35 mph.

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

  SOURCE...Radar indicated.

  IMPACT...Minor damage to vehicles is possible. Wind damage to 
           roofs, siding, trees, and power lines is possible.

* Locations impacted include...
  Mount Pocono, East Stroudsburg, Tobyhanna, Jim Thorpe, Wind Gap,
  Weatherly, Stormville, Werry Lake, Pocono Pines, Lake Harmony,
  Skytop, Tannersville, Long Pond, Kresgeville, Sun Valley, Reeders,
  Beltzville State Park, Saylorsburg, McMichael and Canadensis.

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 4115 7515 4114 7509 4108 7503 4109 7497
      4104 7503 4099 7513 4095 7515 4093 7522
      4086 7529 4081 7550 4091 7599 4101 7573
      4105 7577 4109 7577 4113 7569 4112 7564
      4123 7554 4125 7513
TIME...MOT...LOC 2217Z 277DEG 29KT 4121 7575 4109 7576 4096 7593 

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

Gorse
1 follow-up statement
320 
WWUS51 KPHI 102236
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
636 PM EDT THU MAY 10 2018

PAC025-089-102300-
/O.CON.KPHI.SV.W.0003.000000T0000Z-180510T2300Z/
Carbon PA-Monroe PA-
636 PM EDT THU MAY 10 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM EDT
FOR NORTHEASTERN CARBON AND MONROE COUNTIES...

At 634 PM EDT, severe thunderstorms were located along a line
extending from Gouldsboro State Park to Lake Harmony to Weatherly,
moving east at 35 mph.

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

SOURCE...Radar indicated. Storms have had a history of producing 
         hail up to nickel size so far.

IMPACT...Minor damage to vehicles is possible. Wind damage to roofs, 
         siding, trees, and power lines is possible.

Locations impacted include...
Mount Pocono, East Stroudsburg, Tobyhanna, Jim Thorpe, Wind Gap,
Weatherly, Stormville, Werry Lake, Pocono Pines, Lake Harmony,
Skytop, Tannersville, Long Pond, Kresgeville, Sun Valley, Reeders,
Saylorsburg, McMichael, Canadensis and Blakeslee.

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. Move indoors immediately. Remember, 
if you can hear thunder, you are close enough to be struck by 
lightning.

&&

LAT...LON 4115 7515 4114 7509 4108 7503 4109 7497
      4104 7503 4099 7513 4095 7515 4093 7522
      4086 7529 4083 7543 4095 7590 4101 7573
      4105 7577 4109 7577 4113 7569 4112 7564
      4123 7554 4125 7513
TIME...MOT...LOC 2234Z 276DEG 29KT 4120 7548 4107 7559 4094 7582 

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

Gorse

The office that day

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

IssuedProductOfficeCountiesLasted
May 10, 5:50 PM EDTSpecial Weather StatementPHICarbon, Monroe55 min
May 10, 6:51 PM EDTSevere Thunderstorm WarningPHIChester39 min
May 10, 7:01 PM EDTSpecial Weather StatementPHIMonroe29 min
May 10, 7:54 PM EDTSpecial Weather StatementPHIChester51 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2018Every severe thunderstorm warning in 2018

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.