Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 59, NWS Binghamton, NY

June 21, 20215 counties in Pennsylvania

NWS Binghamton, NY issued this severe thunderstorm warning at Jun 21, 2021, 7:09 PM EDT for 5 counties in Pennsylvania. It was in force for 66 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
Jun 21, 2021, 7:09 PM EDT (23:09 UTC)
Expired
Jun 21, 2021, 8:15 PM EDT
In force
66 min
Issued by
NWS Binghamton, NY
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Lackawanna County, PA, Luzerne County, PA, Susquehanna County, PA, Wayne County, PA, Wyoming County, PA

The radar

The Binghamton radar (KBGM), 97 km from the middle of the area, began a volume at 23:12 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
Jun 21, 7:14 PM EDTTSTM WND DMGFalls, PATREE DOWNED INTO ROADWAY.
Jun 21, 7:25 PM EDTTSTM WND DMGClarks Summit, PAA FEW TREES DOWN. ONE ON WIRES.
Jun 21, 8:05 PM EDTTSTM WND DMG2 N Springbrook Corner, PATREE DOWN ON WIRES ACROSS ROADWAY.
Jun 21, 8:15 PM EDTTSTM WND DMGHonesdale, PATREE AND WIRES DOWN BLOCKING ROAD.

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.

IssuedProductOfficeLasted
Jun 21, 3:45 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 11.2 hours before the alert went out and 210 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, Albany, NY at 12:00Z on 2021-06-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 524 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, Albany, NY at 12:00Z on 2021-06-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 162 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
524 J/kg
Mixed-layer CIN
-118 J/kg
Mixed-layer LCL
990 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
162 m²/s²
0-3 km storm-relative helicity
192 m²/s²
Significant tornado parameter
0.2
Supercell composite
2.4

Open this sounding in Storm Lab

The text

As transmitted.

181 
WUUS51 KBGM 212309
SVRBGM
PAC069-079-115-127-131-220015-
/O.NEW.KBGM.SV.W.0059.210621T2309Z-210622T0015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Binghamton NY
709 PM EDT Mon Jun 21 2021

The National Weather Service in Binghamton has issued a

* Severe Thunderstorm Warning for...
  Southeastern Susquehanna County in northeastern Pennsylvania...
  Lackawanna County in northeastern Pennsylvania...
  Wayne County in northeastern Pennsylvania...
  Luzerne County in northeastern Pennsylvania...
  Wyoming County in northeastern Pennsylvania...

* Until 815 PM EDT.

* At 709 PM EDT, severe thunderstorms were located along a line
  extending from near Pleasant Mount to near Old Forge to
  Mifflinville, moving east at 30 mph.

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

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Scranton, Wilkes-Barre, Falls, Hazleton, Muhlenberg, Dunmore,
  Kingston, Nanticoke, Plains and Carbondale.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with these storms. 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.

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

&&

LAT...LON 4095 7621 4114 7623 4114 7628 4125 7632
      4153 7619 4194 7549 4192 7527 4186 7526
      4184 7512 4182 7508 4162 7505 4137 7526
      4137 7535 4133 7531 4125 7534 4122 7554
      4112 7563 4109 7577 4101 7574 4092 7597
TIME...MOT...LOC 2309Z 269DEG 24KT 4179 7548 4143 7576 4102 7632 

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

MJM
1 follow-up statement
024 
WWUS51 KBGM 212337
SVSBGM

Severe Weather Statement
National Weather Service Binghamton NY
737 PM EDT Mon Jun 21 2021

PAC069-079-115-127-131-220015-
/O.CON.KBGM.SV.W.0059.000000T0000Z-210622T0015Z/
Susquehanna PA-Lackawanna PA-Wayne PA-Luzerne PA-Wyoming PA-
737 PM EDT Mon Jun 21 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM EDT
FOR SOUTHEASTERN SUSQUEHANNA...LACKAWANNA...WAYNE...LUZERNE AND
EASTERN WYOMING COUNTIES...

At 737 PM EDT, severe thunderstorms were located along a line
extending from near Equinunk to Mount Cobb to near Conyngham, moving
east at 30 mph.

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

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Scranton, Wilkes-Barre, Hazleton, Dunmore, Kingston, Nanticoke,
Plains, Carbondale, Old Forge and Pittston.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with these storms.
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.

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

&&

LAT...LON 4095 7621 4109 7618 4114 7610 4136 7585
      4163 7585 4194 7549 4192 7527 4186 7526
      4184 7512 4182 7508 4162 7505 4137 7526
      4137 7535 4133 7531 4125 7534 4122 7554
      4112 7563 4109 7577 4101 7574 4092 7597
TIME...MOT...LOC 2337Z 269DEG 24KT 4179 7525 4143 7553 4102 7609 

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

MWG

The office that day

Everything else NWS Binghamton, NY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 21, 4:42 PM EDTSevere Thunderstorm WarningBGMBradford48 min
Jun 21, 4:58 PM EDTSpecial Weather StatementBGMSullivan47 min
Jun 21, 5:18 PM EDTSevere Thunderstorm WarningBGMBradford42 min
Jun 21, 6:05 PM EDTSpecial Weather StatementBGMBradford, Wyoming40 min
Jun 21, 6:27 PM EDTSevere Thunderstorm WarningBGMBradford, Lackawanna, Luzerne, Susquehanna, Wyoming48 min
Jun 21, 6:45 PM EDTSpecial Weather StatementBGMLuzerne45 min
Jun 21, 6:52 PM EDTSpecial Weather StatementBGMSusquehanna38 min
Jun 21, 7:56 PM EDTSevere Thunderstorm WarningBGMLackawanna, Luzerne, Pike, Wayne64 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2021Every 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.