Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 76, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 14, 2021, 4:15 PM EDT for 5 counties in Pennsylvania. It was in force for 60 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
- Jun 14, 2021, 4:15 PM EDT (20:15 UTC)
- Expired
- Jun 14, 2021, 5:15 PM EDT
- In force
- 60 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Berks County, PA, Carbon County, PA, Lehigh County, PA, Monroe County, PA, Northampton County, PA
The radar
The Binghamton radar (KBGM), 150 km from the middle of the area, began a volume at 20:16 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 |
|---|---|---|---|
| Jun 14, 5:05 PM EDT | TSTM WND DMG | 1 Wnw Jonas, PA | REPORT OF WIRES DOWN IN THE AREA OF ROBINHOOD LAKES. |
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 |
|---|---|---|---|
| Jun 14, 2:06 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 8.3 hours before the alert went out and 245 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 687 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 48 m²/s²
- 0-3 km storm-relative helicity
- 88 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted.
066
WUUS51 KPHI 142015
SVRPHI
PAC011-025-077-089-095-142115-
/O.NEW.KPHI.SV.W.0076.210614T2015Z-210614T2115Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
415 PM EDT Mon Jun 14 2021
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Northeastern Berks County in eastern Pennsylvania...
Northwestern Lehigh County in eastern Pennsylvania...
Carbon County in northeastern Pennsylvania...
Southwestern Monroe County in northeastern Pennsylvania...
West central Northampton County in eastern Pennsylvania...
* Until 515 PM EDT.
* At 413 PM EDT, severe thunderstorms were located along a line
extending from near East Berwick to Rock Glen to Locustdale, moving
east at 40 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
* Locations impacted include...
Lehighton, Palmerton, Kutztown, Jim Thorpe, Hamburg, Slatington,
Fleetwood, Nesquehoning, Weatherly, Walnutport, Lenhartsville, New
Mahoning, Neffs, Lake Harmony, New Tripoli, Berlinsville,
Albrightsville, Emerald, Kresgeville and Sun Valley.
This includes the following highways...
Northeast Extension between mile markers 63 and 97.
Interstate 78 in Pennsylvania between mile markers 29 and 47.
Interstate 80 in Pennsylvania between mile markers 277 and 289.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4099 7545 4082 7546 4045 7580 4056 7608
4058 7606 4057 7602 4065 7598 4074 7576
4083 7590 4091 7599 4101 7573 4105 7577
4109 7577 4113 7569 4112 7565 4115 7560
TIME...MOT...LOC 2013Z 283DEG 35KT 4110 7624 4096 7620 4078 7636
HAIL...0.75IN
WIND...60MPH
$$
Staarmann3 follow-up statements
638
WWUS51 KPHI 142049
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
449 PM EDT Mon Jun 14 2021
PAC011-025-077-089-095-142115-
/O.CON.KPHI.SV.W.0076.000000T0000Z-210614T2115Z/
Berks PA-Lehigh PA-Carbon PA-Monroe PA-Northampton PA-
449 PM EDT Mon Jun 14 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR NORTHEASTERN BERKS...NORTHWESTERN LEHIGH...CARBON...SOUTHWESTERN
MONROE AND WEST CENTRAL NORTHAMPTON COUNTIES...
At 448 PM EDT, severe thunderstorms were located along a line
extending from near Freeland to near Weatherly to near Tuscarora,
moving east at 40 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Lehighton, Palmerton, Kutztown, Jim Thorpe, Hamburg, Slatington,
Fleetwood, Nesquehoning, Weatherly, Walnutport, Lenhartsville, New
Mahoning, Neffs, Lake Harmony, New Tripoli, Berlinsville,
Albrightsville, Emerald, Kresgeville and Sun Valley.
This includes the following highways...
Northeast Extension between mile markers 63 and 97.
Interstate 78 in Pennsylvania between mile markers 29 and 47.
Interstate 80 in Pennsylvania between mile markers 277 and 289.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4099 7545 4082 7546 4045 7580 4056 7608
4058 7606 4057 7602 4065 7598 4074 7576
4083 7590 4091 7599 4101 7573 4105 7577
4109 7577 4113 7569 4112 7565 4115 7560
TIME...MOT...LOC 2048Z 283DEG 35KT 4105 7594 4091 7590 4073 7606
HAIL...<.75IN
WIND...60MPH
$$
Staarmann091
WWUS51 KPHI 142102
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
502 PM EDT Mon Jun 14 2021
PAC011-142111-
/O.CAN.KPHI.SV.W.0076.000000T0000Z-210614T2115Z/
Berks PA-
502 PM EDT Mon Jun 14 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN BERKS COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
eastern and northeastern Pennsylvania.
LAT...LON 4100 7545 4082 7546 4056 7570 4068 7589
4070 7583 4074 7576 4087 7594 4095 7590
4101 7573 4105 7577 4108 7577 4113 7570
4112 7565 4115 7560
TIME...MOT...LOC 2101Z 279DEG 37KT 4103 7582 4091 7576 4077 7592
$$
PAC025-077-089-095-142115-
/O.CON.KPHI.SV.W.0076.000000T0000Z-210614T2115Z/
Lehigh PA-Carbon PA-Monroe PA-Northampton PA-
502 PM EDT Mon Jun 14 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR NORTHWESTERN LEHIGH...CARBON...SOUTHWESTERN MONROE AND WEST
CENTRAL NORTHAMPTON COUNTIES...
At 501 PM EDT, severe thunderstorms were located along a line
extending from near White Haven to near Jim Thorpe to near Tamaqua,
moving east at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Lehighton, Palmerton, Jim Thorpe, Slatington, Nesquehoning,
Weatherly, Walnutport, New Mahoning, Neffs, Lake Harmony, New
Tripoli, Berlinsville, Albrightsville, Emerald, Kresgeville, Sun
Valley, Claussville, Jonas, Meckesville and Danielsville.
This includes the following highways...
Northeast Extension between mile markers 63 and 97.
Interstate 78 in Pennsylvania between mile markers 46 and 47.
Interstate 80 in Pennsylvania between mile markers 277 and 290.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4100 7545 4082 7546 4056 7570 4068 7589
4070 7583 4074 7576 4087 7594 4095 7590
4101 7573 4105 7577 4108 7577 4113 7570
4112 7565 4115 7560
TIME...MOT...LOC 2101Z 279DEG 37KT 4103 7582 4091 7576 4077 7592
HAIL...<.75IN
WIND...60MPH
$$
Staarmann714
WWUS51 KPHI 142109
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
509 PM EDT Mon Jun 14 2021
PAC025-077-089-095-142119-
/O.EXP.KPHI.SV.W.0076.000000T0000Z-210614T2115Z/
Lehigh PA-Carbon PA-Monroe PA-Northampton PA-
509 PM EDT Mon Jun 14 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN LEHIGH...
CARBON...SOUTHWESTERN MONROE AND WEST CENTRAL NORTHAMPTON COUNTIES
WILL EXPIRE AT 515 PM EDT...
The storms which prompted the warning have weakened below severe
limits, and no longer pose 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 these thunderstorms.
A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
eastern and northeastern Pennsylvania.
LAT...LON 4100 7545 4082 7546 4056 7570 4068 7589
4070 7583 4074 7576 4087 7594 4095 7590
4101 7573 4105 7577 4108 7577 4113 7570
4112 7565 4115 7560
TIME...MOT...LOC 2109Z 283DEG 35KT 4102 7578 4090 7572 4076 7588
$$
StaarmannThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 14, 5:29 PM EDT | Special Weather Statement | PHI | Monroe | 31 min |
| Jun 14, 7:55 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 50 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.