Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 123, NWS Philadelphia/Mount Holly

July 6, 2021Carbon County, Monroe County, Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 6, 2021, 4:29 PM EDT for Carbon County, Monroe County, Pennsylvania. It was in force for 76 min. 12 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 6, 2021, 4:29 PM EDT (20:29 UTC)
Expired: Jul 6, 2021, 5:45 PM EDT
In force: 76 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), 137 km from the middle of the area, began a volume at 20:32 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 6, 4:45 PM EDT	TSTM WND DMG	1 Nnw Pocono Summit, PA	TREE DOWN ON PROPERTY NEARLY MISSING 2 VEHICLES. TIME ESTIMATED FROM RADAR.
Jul 6, 4:48 PM EDT	TSTM WND DMG	2 Ne Sciota, PA	CORRECTS PREVIOUS NON-TSTM WND DMG REPORT FROM 2 NE SCIOTA. TREE DOWN IN WIRES.
Jul 6, 4:48 PM EDT	NON-TSTM WND DMG	2 Ne Sciota, PA	CORRECTS PREVIOUS NON-TSTM WND DMG REPORT FROM 2 NE SCIOTA. TREE DOWN IN WIRES.
Jul 6, 5:05 PM EDT	TSTM WND DMG	Effort, PA	SEVERAL SMALL TREES BROUGHT DOWN POWER LINES.
Jul 6, 5:10 PM EDT	HAIL 0.7	Effort, PA
Jul 6, 5:10 PM EDT	HAIL 1	Effort, PA	CORRECTS PREVIOUS HAIL REPORT FROM EFFORT.
Jul 6, 5:31 PM EDT	TSTM WND DMG	1 Nne Sciota, PA	TREE DOWN IN WIRES.
Jul 6, 5:31 PM EDT	NON-TSTM WND DMG	1 Nne Sciota, PA	TREE DOWN IN WIRES.
Jul 6, 5:46 PM EDT	TSTM WND DMG	1 N Delaware Water Gap, PA	A FEW DOWN TREES. REPORT VIA SOCIAL MEDIA. TIME ESTIMATED FROM RADAR.
Jul 6, 5:53 PM EDT	TSTM WND DMG	Saylorsburg, PA	TREE DOWN IN WIRES.
Jul 6, 5:53 PM EDT	HAIL 1	1 Ese Brodheadsville, PA	MPING REPORT OF QUARTER SIZE HAIL.
Jul 6, 5:53 PM EDT	HAIL 1	1 Ese Brodheadsville, PA	REPORT FROM MPING: QUARTER (1.00 IN.).

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 6, 1:32 PM EDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 8.5 hours before the alert went out and 212 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: 230 J/kg
Mixed-layer CIN: -195 J/kg
Mixed-layer LCL: 1202 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 139 m²/s²
0-3 km storm-relative helicity: 184 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

870 
WUUS51 KPHI 062029
SVRPHI
PAC025-089-062145-
/O.NEW.KPHI.SV.W.0123.210706T2029Z-210706T2145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
429 PM EDT Tue Jul 6 2021

The National Weather Service in Mount Holly NJ has issued a

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

* Until 545 PM EDT.

* At 428 PM EDT, severe thunderstorms were located along a line
  extending from near Royal to Moscow to Penobscot, moving east at 40
  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, Wind Gap, Stormville,
  Werry Lake, Pocono Pines, Lake Harmony, Skytop, Tannersville, Long
  Pond, Kresgeville, Sun Valley, Reeders, Saylorsburg, McMichael,
  Canadensis, Blakeslee, Penn Forest Reservoir and Christmans.

This includes the following highways...
 Northeast Extension between mile markers 81 and 97.
 Interstate 80 in Pennsylvania between mile markers 277 and 314.
 Interstate 380 in Pennsylvania between mile markers 0 and 12.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4115 7515 4114 7509 4108 7503 4109 7497
      4099 7513 4095 7515 4093 7522 4086 7529
      4081 7547 4098 7580 4101 7573 4105 7577
      4109 7577 4113 7569 4112 7564 4122 7554
      4125 7513
TIME...MOT...LOC 2028Z 284DEG 35KT 4163 7557 4136 7554 4118 7587 

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

Staarmann

2 follow-up statements

364 
WWUS51 KPHI 062052
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
452 PM EDT Tue Jul 6 2021

PAC025-089-062145-
/O.CON.KPHI.SV.W.0123.000000T0000Z-210706T2145Z/
Carbon PA-Monroe PA-
452 PM EDT Tue Jul 6 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM EDT
FOR NORTHEASTERN CARBON AND MONROE COUNTIES...

At 452 PM EDT, severe thunderstorms were located along a line
extending from near Skytop to Pocono Pines to near White Haven,
moving southeast at 45 mph.

HAZARD...70 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Minor damage to vehicles is possible. Expect considerable 
         tree damage. Wind damage is also likely to mobile homes, 
         roofs, and outbuildings.

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

This includes the following highways...
 Northeast Extension between mile markers 81 and 97.
 Interstate 80 in Pennsylvania between mile markers 277 and 314.
 Interstate 380 in Pennsylvania between mile markers 0 and 12.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 4115 7515 4114 7509 4108 7503 4109 7497
      4099 7513 4095 7515 4093 7522 4086 7529
      4081 7547 4098 7580 4101 7573 4105 7577
      4109 7577 4113 7569 4112 7564 4122 7554
      4125 7513
TIME...MOT...LOC 2052Z 298DEG 38KT 4122 7528 4110 7545 4105 7569 

HAIL...1.00IN
WIND...70MPH
 
$$

Staarmann

475 
WWUS51 KPHI 062119
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
519 PM EDT Tue Jul 6 2021

PAC025-089-062145-
/O.CON.KPHI.SV.W.0123.000000T0000Z-210706T2145Z/
Carbon PA-Monroe PA-
519 PM EDT Tue Jul 6 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM EDT
FOR EAST CENTRAL CARBON AND MONROE COUNTIES...

At 519 PM EDT, severe thunderstorms were located along a line
extending from Bushkill to East Stroudsburg to Penn Forest Reservoir,
moving east at 40 mph.

HAZARD...70 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Minor damage to vehicles is possible. Expect considerable 
         tree damage. Wind damage is also likely to mobile homes, 
         roofs, and outbuildings.

Locations impacted include...
Mount Pocono, East Stroudsburg, Wind Gap, Stormville, Henryville,
Brodheadsville, Kunkletown, Werry Lake, Gilbert, Pocono Raceway,
Delaware Water Gap, Tannersville, Alpine Mountain, Rossland, Long
Pond, Albrightsville, Kresgeville, Sun Valley, Jonas and Meckesville.

This includes the following highways...
 Northeast Extension between mile markers 81 and 89.
 Interstate 80 in Pennsylvania between mile markers 293 and 314.
 Interstate 380 in Pennsylvania between mile markers 0 and 2.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 4097 7578 4120 7514 4115 7515 4114 7509
      4108 7503 4109 7497 4099 7513 4095 7515
      4093 7522 4086 7529 4081 7547
TIME...MOT...LOC 2119Z 286DEG 35KT 4111 7501 4098 7517 4096 7556 

HAIL...1.00IN
WIND...70MPH
 
$$

Staarmann

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 6, 4:23 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Chester, Montgomery	52 min
Jul 6, 5:08 PM EDT	Special Weather Statement	PHI	Carbon	37 min
Jul 6, 5:11 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	49 min
Jul 6, 5:15 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Monroe, Northampton	60 min
Jul 6, 5:34 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware, Montgomery, Philadelphia	41 min
Jul 6, 5:55 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Lehigh, Northampton	65 min
Jul 6, 6:13 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	31 min
Jul 6, 6:41 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	64 min
Jul 6, 7:01 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	59 min
Jul 6, 7:50 PM EDT	Special Weather Statement	PHI	Lehigh	25 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2021 Every severe thunderstorm warning in 2021

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.