Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 104, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at Jul 9, 2021, 4:16 PM EDT for 5 counties in Pennsylvania. It was in force for 74 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 9, 2021, 4:16 PM EDT (20:16 UTC)
- Expired
- Jul 9, 2021, 5:30 PM EDT
- In force
- 74 min
- Issued by
- NWS State College, PA
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Dauphin County, PA, Juniata County, PA, Lebanon County, PA, Perry County, PA, Schuylkill County, PA
The radar
The State College radar (KCCX), 114 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.
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 8.3 hours before the alert went out and 186 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
- 862 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 42 m²/s²
- 0-3 km storm-relative helicity
- 55 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
638
WUUS51 KCTP 092016
SVRCTP
PAC043-067-075-099-107-092130-
/O.NEW.KCTP.SV.W.0104.210709T2016Z-210709T2130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service State College PA
416 PM EDT Fri Jul 9 2021
The National Weather Service in State College PA has issued a
* Severe Thunderstorm Warning for...
Southwestern Schuylkill County in central Pennsylvania...
Northern Dauphin County in south central Pennsylvania...
Northeastern Juniata County in central Pennsylvania...
Northeastern Perry County in south central Pennsylvania...
Northwestern Lebanon County in south central Pennsylvania...
* Until 530 PM EDT.
* At 415 PM EDT, a severe thunderstorm was located near Millersburg,
moving east at 30 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Valley View, Millersburg, Sand Hill, Pine Grove, Lykens, Tremont,
Newport, Elizabethville, Williamstown, Fredericksburg, Tower City,
Donaldson, New Buffalo, Harper Tavern, Dehart Dam, Lickdale, Fort
Indiantown Gap, Penn National Race Course, Jonestown and Liverpool.
This includes the following Interstates...
Interstate 78 from mile markers 0 to 7.
Interstate 81 from mile markers 82 to 108.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4050 7639 4049 7644 4047 7639 4036 7641
4045 7724 4053 7731 4064 7720 4064 7694
4063 7695 4060 7692 4064 7681 4064 7637
TIME...MOT...LOC 2015Z 277DEG 27KT 4052 7701
HAIL...<.75IN
WIND...60MPH
$$
Lambert1 follow-up statement
684
WWUS51 KCTP 092046
SVSCTP
Severe Weather Statement
National Weather Service State College PA
446 PM EDT Fri Jul 9 2021
PAC067-107-092054-
/O.CAN.KCTP.SV.W.0104.000000T0000Z-210709T2130Z/
Schuylkill PA-Juniata PA-
446 PM EDT Fri Jul 9 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN SCHUYLKILL AND
NORTHEASTERN JUNIATA COUNTIES IS CANCELLED...
The severe thunderstorm which prompted the warning has away from the
warned area. Therefore, the warning has been cancelled.
LAT...LON 4051 7646 4049 7644 4047 7639 4036 7641
4043 7704 4049 7704 4055 7700 4056 7694
4056 7676
TIME...MOT...LOC 2044Z 280DEG 27KT 4043 7686
$$
PAC043-075-099-092130-
/O.CON.KCTP.SV.W.0104.000000T0000Z-210709T2130Z/
Dauphin PA-Perry PA-Lebanon PA-
446 PM EDT Fri Jul 9 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR NORTHERN DAUPHIN...EAST CENTRAL PERRY AND NORTHWESTERN LEBANON
COUNTIES...
At 444 PM EDT, a severe thunderstorm was located near New Buffalo,
moving east southeast at 30 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Millersburg, Sand Hill, Elizabethville, Fredericksburg, New Buffalo,
Harper Tavern, Lickdale, Fort Indiantown Gap, Penn National Race
Course, Dehart Dam, Jonestown, Halifax, Enders and Ono.
This includes the following Interstates...
Interstate 78 from mile markers 0 to 7.
Interstate 81 from mile markers 82 to 96.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
This thunderstorm is capable of producing all types of severe weather
including extremely large hail, destructive straight line winds and
tornadoes. Move quickly to a safe shelter, such as an interior room,
a bathroom or closet or basement.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4051 7646 4049 7644 4047 7639 4036 7641
4043 7704 4049 7704 4055 7700 4056 7694
4056 7676
TIME...MOT...LOC 2044Z 280DEG 27KT 4043 7686
HAIL...<.75IN
WIND...60MPH
$$
LambertThe office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 9, 3:36 PM EDT | Special Weather Statement | CTP | Juniata | 24 min |
| Jul 9, 3:49 PM EDT | Special Weather Statement | CTP | York | 26 min |
| Jul 9, 4:02 PM EDT | Special Weather Statement | CTP | Lycoming | 28 min |
| Jul 9, 4:04 PM EDT | Special Weather Statement | CTP | Perry | 26 min |
| Jul 9, 4:21 PM EDT | Special Weather Statement | CTP | York | 24 min |
| Jul 9, 4:49 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lebanon | 56 min |
| Jul 9, 5:24 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lancaster, Lebanon, York | 81 min |
| Jul 9, 6:13 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 47 min |
| Jul 9, 6:22 PM EDT | Special Weather Statement | CTP | York | 38 min |
| Jul 9, 6:41 PM EDT | Special Weather Statement | CTP | Schuylkill | 49 min |
| Jul 9, 7:00 PM EDT | Special Weather Statement | CTP | Lancaster | 30 min |
| Jul 9, 7:16 PM EDT | Special Weather Statement | CTP | Tioga | 29 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.