Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 351, NWS Philadelphia/Mount Holly

August 15, 2019Carbon County, Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 15, 2019, 3:42 PM EDT for Carbon County, Pennsylvania. It was in force for 48 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
Aug 15, 2019, 3:42 PM EDT (19:42 UTC)
Expired
Aug 15, 2019, 4:30 PM EDT
In force
48 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Carbon County, PA

The radar

The Binghamton radar (KBGM), 134 km from the middle of the area, began a volume at 19:45 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
Aug 15, 4:05 PM EDTTSTM WND DMG2 Ne Weatherly, PASEVERAL REPORTS OF TREES AND WIRES DOWN NEAR AND NORTHEAST OF WEATHERLY. TIME ESTIMATED FROM RADAR.

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, 7.7 hours before the alert went out and 243 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 2019-08-15Temperature 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 2019-08-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -66 square meters per square second.1939587897Sfc1 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
1087 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
-66 m²/s²
0-3 km storm-relative helicity
-1 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

995 
WUUS51 KPHI 151942
SVRPHI
PAC025-152030-
/O.NEW.KPHI.SV.W.0351.190815T1942Z-190815T2030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
342 PM EDT Thu Aug 15 2019

The National Weather Service in Mount Holly NJ has issued a

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

* Until 430 PM EDT.

* At 341 PM EDT, a severe thunderstorm was located near
  Woodside-Drifton, or 7 miles northeast of Hazleton, moving east at
  10 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...
  Jim Thorpe, Weatherly, Christmans, Lake Harmony and Beaver Meadows.

This includes Interstate 80 in Pennsylvania between mile markers 277
and 281.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4106 7559 4084 7570 4093 7595 4098 7582
      4098 7580 4101 7573 4103 7574 4103 7575
      4105 7577 4108 7577
TIME...MOT...LOC 1941Z 286DEG 10KT 4099 7584 

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

Robertson
1 follow-up statement
210 
WWUS51 KPHI 152003
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
403 PM EDT Thu Aug 15 2019

PAC025-152030-
/O.CON.KPHI.SV.W.0351.000000T0000Z-190815T2030Z/
Carbon PA-
403 PM EDT Thu Aug 15 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM EDT
FOR CENTRAL CARBON COUNTY...

At 401 PM EDT, a severe thunderstorm was located near Weatherly, or
10 miles north of Lehighton, moving east at 10 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...
Jim Thorpe, Weatherly, Christmans and Lake Harmony. 

This includes Interstate 80 in Pennsylvania mile marker 277 and near
mile marker 279.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Frequent cloud to ground lightning is occurring with this storm. Move
indoors immediately. Lightning is one of nature's leading killers.
Remember, if you can hear thunder, you are close enough to be struck
by lightning.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4095 7588 4095 7589 4098 7582 4098 7580
      4101 7573 4103 7574 4103 7575 4105 7577
      4106 7577 4106 7559 4084 7570 4085 7571
TIME...MOT...LOC 2001Z 286DEG 10KT 4097 7577 

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

Robertson

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 14, 8:09 PM EDTSpecial Weather StatementPHIChester36 min
Aug 14, 8:16 PM EDTAreal Flood AdvisoryPHIBucks, Chester, Montgomery, Philadelphia119 min
Aug 14, 8:48 PM EDTSpecial Weather StatementPHIDelaware, Philadelphia42 min
Aug 14, 8:56 PM EDTAreal Flood AdvisoryPHIChester, Delaware, Montgomery, Philadelphia2 hr
Aug 14, 9:12 PM EDTFlash Flood WarningPHIChester, Delaware, Montgomery, Philadelphia3 hr
Aug 15, 2:23 AM EDTDense Fog AdvisoryPHIBucks, Chester, Delaware, Montgomery, Philadelphia6 hr
Aug 15, 4:22 PM EDTSevere Thunderstorm WarningPHICarbon, Monroe, Northampton53 min
Aug 15, 5:18 PM EDTSpecial Weather StatementPHIMonroe27 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2019Every severe thunderstorm warning in 2019

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.