Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 92, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at Jul 7, 2021, 7:09 PM EDT for Juniata County, Mifflin County, Snyder County, Pennsylvania. It was in force for 36 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
- Jul 7, 2021, 7:09 PM EDT (23:09 UTC)
- Expired
- Jul 7, 2021, 7:45 PM EDT
- In force
- 36 min
- Issued by
- NWS State College, PA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Juniata County, PA, Mifflin County, PA, Snyder County, PA
The radar
The State College radar (KCCX), 79 km from the middle of the area, began a volume at 23:13 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 7, 7:31 PM EDT | TSTM WND DMG | Selinsgrove, PA | POWER POLES DOWN NEAR SELINSGROVE. |
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 7, 3:31 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 11.2 hours before the alert went out and 208 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
- 1114 J/kg
- Mixed-layer CIN
- -110 J/kg
- Mixed-layer LCL
- 1273 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 50 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
230
WUUS51 KCTP 072309
SVRCTP
PAC067-087-109-072345-
/O.NEW.KCTP.SV.W.0092.210707T2309Z-210707T2345Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service State College PA
709 PM EDT Wed Jul 7 2021
The National Weather Service in State College PA has issued a
* Severe Thunderstorm Warning for...
Northeastern Mifflin County in central Pennsylvania...
Northeastern Juniata County in central Pennsylvania...
Snyder County in central Pennsylvania...
* Until 745 PM EDT.
* At 708 PM EDT, severe thunderstorms were located along a line
extending from near Alfarata to near Richfield, moving northeast at
15 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...
Selinsgrove, Winfield, Burnham, Shamokin Dam, Hummels Wharf,
Middleburg, Yeagertown, Mcalisterville, McClure, Kreamer, Port
Trevorton, Penns Creek, Beaver Springs, Reedsville, Richfield,
Mount Pleasant Mills, Kratzerville, Paxtonville, Troxelville and
Alfarata.
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.
&&
LAT...LON 4080 7685 4070 7687 4060 7702 4064 7763
4081 7748 4085 7736 4081 7735 4087 7706
4086 7702 4087 7700 4089 7694 4089 7682
4088 7680
TIME...MOT...LOC 2308Z 223DEG 13KT 4067 7751 4066 7706
HAIL...1.00IN
WIND...60MPH
$$
Banghoff1 follow-up statement
474
WWUS51 KCTP 072340
SVSCTP
Severe Weather Statement
National Weather Service State College PA
740 PM EDT Wed Jul 7 2021
PAC067-087-109-072350-
/O.EXP.KCTP.SV.W.0092.000000T0000Z-210707T2345Z/
Mifflin PA-Juniata PA-Snyder PA-
740 PM EDT Wed Jul 7 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MIFFLIN...
NORTHEASTERN JUNIATA AND SNYDER COUNTIES WILL EXPIRE AT 745 PM EDT...
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However gusty
winds and heavy rain are still possible with these thunderstorms.
A Severe Thunderstorm Watch remains in effect until 1100 PM EDT for
central Pennsylvania. A Severe Thunderstorm Watch also remains in
effect until 1100 PM EDT for central Pennsylvania.
LAT...LON 4080 7685 4070 7687 4060 7702 4064 7763
4081 7748 4085 7736 4081 7735 4087 7706
4086 7702 4087 7700 4089 7694 4089 7682
4088 7680
TIME...MOT...LOC 2340Z 223DEG 13KT 4075 7742 4074 7697
$$
BanghoffThe office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 3:35 PM EDT | Special Weather Statement | CTP | Fulton | 40 min |
| Jul 7, 4:00 PM EDT | Special Weather Statement | CTP | Warren | 45 min |
| Jul 7, 4:05 PM EDT | Special Weather Statement | CTP | Somerset | 25 min |
| Jul 7, 4:12 PM EDT | Special Weather Statement | CTP | Somerset | 33 min |
| Jul 7, 4:12 PM EDT | Severe Thunderstorm Warning | CTP | Cambria, Somerset | 47 min |
| Jul 7, 4:22 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Somerset | 38 min |
| Jul 7, 4:44 PM EDT | Severe Thunderstorm Warning | CTP | Cambria | 61 min |
| Jul 7, 4:46 PM EDT | Special Weather Statement | CTP | Warren | 29 min |
| Jul 7, 4:48 PM EDT | Special Weather Statement | CTP | Bedford | 27 min |
| Jul 7, 4:54 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Somerset | 51 min |
| Jul 7, 4:59 PM EDT | Special Weather Statement | CTP | Warren | 31 min |
| Jul 7, 5:07 PM EDT | Severe Thunderstorm Warning | CTP | McKean, Warren | 53 min |
| Jul 7, 5:12 PM EDT | Special Weather Statement | CTP | Blair | 33 min |
| Jul 7, 5:19 PM EDT | Severe Thunderstorm Warning | CTP | Blair | 41 min |
| Jul 7, 5:23 PM EDT | Severe Thunderstorm Warning | CTP | Bedford | 37 min |
| Jul 7, 5:27 PM EDT | Special Weather Statement | CTP | Clearfield | 33 min |
| Jul 7, 5:35 PM EDT | Severe Thunderstorm Warning | CTP | Blair | 25 min |
| Jul 7, 5:38 PM EDT | Special Weather Statement | CTP | Warren | 37 min |
| Jul 7, 5:42 PM EDT | Special Weather Statement | CTP | Cumberland | 33 min |
| Jul 7, 5:48 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Huntingdon | 57 min |
| Jul 7, 5:50 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Franklin | 40 min |
| Jul 7, 5:55 PM EDT | Severe Thunderstorm Warning | CTP | McKean | 65 min |
| Jul 7, 6:00 PM EDT | Special Weather Statement | CTP | Elk | 30 min |
| Jul 7, 6:12 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clearfield, Huntingdon | 48 min |
| Jul 7, 6:22 PM EDT | Special Weather Statement | CTP | Mifflin | 23 min |
| Jul 7, 6:29 PM EDT | Severe Thunderstorm Warning | CTP | Warren | 61 min |
| Jul 7, 6:36 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clearfield, Clinton, Mifflin | 39 min |
| Jul 7, 6:37 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Franklin, Perry | 37 min |
| Jul 7, 6:43 PM EDT | Severe Thunderstorm Warning | CTP | McKean, Potter | 77 min |
| Jul 7, 6:56 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton, Mifflin, Snyder, Union | 49 min |
| Jul 7, 7:19 PM EDT | Areal Flood Advisory | CTP | Warren | 116 min |
| Jul 7, 7:31 PM EDT | Severe Thunderstorm Warning | CTP | Clinton, Lycoming, Montour, Northumberland, Union | 44 min |
| Jul 7, 7:44 PM EDT | Areal Flood Advisory | CTP | McKean, Potter | 2 hr |
| Jul 7, 7:48 PM EDT | Special Weather Statement | CTP | Bedford | 27 min |
| Jul 7, 7:50 PM EDT | Special Weather Statement | CTP | Tioga | 10 min |
| Jul 7, 7:51 PM EDT | Special Weather Statement | CTP | Potter | 24 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.