Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 113, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at Jul 11, 2021, 5:25 PM EDT for Cambria County, Somerset County, Pennsylvania. It was in force for 65 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 11, 2021, 5:25 PM EDT (21:25 UTC)
- Expired
- Jul 11, 2021, 6:30 PM EDT
- In force
- 65 min
- Issued by
- NWS State College, PA
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Cambria County, PA, Somerset County, PA
The radar
The State College radar (KCCX), 100 km from the middle of the area, began a volume at 21:25 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 11, 5:45 PM EDT | TSTM WND DMG | 2 Nne Boswell, PA | NUMEROUS REPORTS OF TREES AND WIRES DOWN ACROSS NORTHERN SOMERSET COUNTY IN THE VICNITY OF JENNERSTOWN, BOSWELL AND JEROME. |
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 11, 2:40 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 12:00Z, 9.4 hours before the alert went out and 110 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
- 5 J/kg
- Mixed-layer CIN
- -180 J/kg
- Mixed-layer LCL
- 979 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 90 m²/s²
- 0-3 km storm-relative helicity
- 135 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
215
WUUS51 KCTP 112125
SVRCTP
PAC021-111-112230-
/O.NEW.KCTP.SV.W.0113.210711T2125Z-210711T2230Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service State College PA
525 PM EDT Sun Jul 11 2021
The National Weather Service in State College PA has issued a
* Severe Thunderstorm Warning for...
Somerset County in south central Pennsylvania...
Cambria County in central Pennsylvania...
* Until 630 PM EDT.
* At 524 PM EDT, severe thunderstorms were located along a line
extending from 7 miles northeast of Indiana to near Westmont to 6
miles west of Somerset to near Ursina, moving northeast at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Johnstown, Somerset, Westmont, Windber, Ebensburg, Belmont,
Nanty-Glo, Portage, Northern Cambria, Geistown, Southmont, Berlin,
Patton, Cresson, Gallitzin, Friedens, Vinco, Loretto, Hastings and
Boswell.
This includes The Pennsylvania Turnpike from mile markers 101 to 129.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Intense thunderstorm lines can produce brief tornadoes and widespread
significant wind damage. Although a tornado is not immediately
likely, it is best to move to an interior room on the lowest floor of
a building. These storms may cause serious injury and significant
property damage.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3979 7935 4002 7931 4009 7925 4012 7917
4016 7916 4036 7900 4072 7880 4073 7836
4065 7840 4064 7844 4055 7847 4051 7854
4037 7856 4031 7864 4026 7864 4024 7867
4009 7873 4006 7876 3986 7877
TIME...MOT...LOC 2124Z 236DEG 30KT 4071 7909 4038 7903 4004 7919 3979
7937
HAIL...<.75IN
WIND...60MPH
$$
Lambert1 follow-up statement
293
WWUS51 KCTP 112206
SVSCTP
Severe Weather Statement
National Weather Service State College PA
606 PM EDT Sun Jul 11 2021
PAC021-111-112230-
/O.CON.KCTP.SV.W.0113.000000T0000Z-210711T2230Z/
Somerset PA-Cambria PA-
606 PM EDT Sun Jul 11 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR EASTERN SOMERSET AND CAMBRIA COUNTIES...
At 606 PM EDT, severe thunderstorms were located along a line
extending from 12 miles southwest of Curwensville to near Carrolltown
to Windber to near Somerset, moving northeast at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Windber, Ebensburg, Belmont, Portage, Geistown, Berlin, Patton,
Cresson, Gallitzin, Friedens, Loretto, Hastings, Salix-Beauty Line
Park, Central City, Beaverdale-Lloydell, Paint, Lilly, South Fork,
Carrolltown and Scalp Level.
This includes The Pennsylvania Turnpike from mile markers 115 to 129.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Intense thunderstorm lines can produce brief tornadoes and widespread
significant wind damage. Although a tornado is not immediately
likely, it is best to move to an interior room on the lowest floor of
a building. These storms may cause serious injury and significant
property damage.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3982 7909 4019 7891 4038 7884 4061 7870
4072 7872 4073 7836 4065 7840 4064 7844
4055 7847 4051 7854 4037 7856 4031 7864
4026 7864 4024 7867 4009 7873 4006 7876
3986 7877
TIME...MOT...LOC 2206Z 236DEG 30KT 4089 7873 4056 7867 4022 7883 3997
7902
HAIL...<.75IN
WIND...60MPH
$$
EvanegoThe office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 11, 3:29 PM EDT | Special Weather Statement | CTP | Cameron | 31 min |
| Jul 11, 3:51 PM EDT | Special Weather Statement | CTP | Cambria | 39 min |
| Jul 11, 4:42 PM EDT | Flash Flood Watch | CTP | Columbia, Lycoming, Sullivan, Tioga | 9 hr |
| Jul 11, 4:48 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Elk | 42 min |
| Jul 11, 4:51 PM EDT | Severe Thunderstorm Warning | CTP | Clearfield, Elk | 39 min |
| Jul 11, 4:59 PM EDT | Special Weather Statement | CTP | Blair | 46 min |
| Jul 11, 5:06 PM EDT | Special Weather Statement | CTP | Snyder | 39 min |
| Jul 11, 5:06 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Huntingdon | 24 min |
| Jul 11, 5:10 PM EDT | Tornado Warning | CTP | Cameron, Elk | 24 min |
| Jul 11, 5:18 PM EDT | Severe Thunderstorm Warning | CTP | Elk | 46 min |
| Jul 11, 5:19 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Clearfield, Elk | 41 min |
| Jul 11, 5:30 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Centre, Clearfield, Huntingdon | 45 min |
| Jul 11, 5:37 PM EDT | Areal Flood Advisory | CTP | Cameron, Clearfield, Clinton, Elk, Potter | 2 hr |
| Jul 11, 5:52 PM EDT | Special Weather Statement | CTP | Bedford | 23 min |
| Jul 11, 5:55 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Centre, Clearfield, Clinton, Potter | 35 min |
| Jul 11, 6:03 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Blair, Cambria, Centre, Clearfield, Huntingdon and 1 more | 57 min |
| Jul 11, 6:16 PM EDT | Tornado Warning | CTP | Centre, Clinton | 29 min |
| Jul 11, 6:23 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton | 52 min |
| Jul 11, 6:35 PM EDT | Special Weather Statement | CTP | Sullivan | 25 min |
| Jul 11, 6:39 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton | 51 min |
| Jul 11, 6:48 PM EDT | Tornado Warning | CTP | Centre, Clinton | 27 min |
| Jul 11, 6:57 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Centre, Cumberland, Franklin, Fulton, Huntingdon and 3 more | 63 min |
| Jul 11, 7:02 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Sullivan | 43 min |
| Jul 11, 7:25 PM EDT | Severe Thunderstorm Warning | CTP | Clinton | 50 min |
| Jul 11, 7:31 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton, Juniata, Mifflin, Snyder, Union | 44 min |
| Jul 11, 7:39 PM EDT | Tornado Warning | CTP | Clinton, Lycoming | 36 min |
| Jul 11, 7:48 PM EDT | Special Weather Statement | CTP | Sullivan | 27 min |
| Jul 11, 7:58 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Cumberland, Franklin, Fulton, Huntingdon, Juniata and 2 more | 62 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.