Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 62, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at Jun 29, 2021, 10:42 PM EDT for Potter County, Tioga County, Pennsylvania. It was in force for 63 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 29, 2021, 10:42 PM EDT (02:42 UTC)
- Expired
- Jun 29, 2021, 11:45 PM EDT
- In force
- 63 min
- Issued by
- NWS State College, PA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Potter County, PA, Tioga County, PA
The radar
The State College radar (KCCX), 91 km from the middle of the area, began a volume at 02:42 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 29, 10:48 PM EDT | TSTM WND DMG | 3 S Coudersport, PA | MULTIPLE TREES DOWN ON ROUTE 872 SOUTH OF COUDERSPORT. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 2.7 hours before the alert went out and 154 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
- 281 J/kg
- Mixed-layer CIN
- -77 J/kg
- Mixed-layer LCL
- 1494 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- -13 m²/s²
- 0-3 km storm-relative helicity
- -5 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.3
The text
As transmitted.
478
WUUS51 KCTP 300242
SVRCTP
PAC105-117-300345-
/O.NEW.KCTP.SV.W.0062.210630T0242Z-210630T0345Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service State College PA
1042 PM EDT Tue Jun 29 2021
The National Weather Service in State College PA has issued a
* Severe Thunderstorm Warning for...
Central Potter County in north central Pennsylvania...
West central Tioga County in north central Pennsylvania...
* Until 1145 PM EDT.
* At 1041 PM EDT, a severe thunderstorm was located near Keating
Summit, moving east at 25 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...
Coudersport, Roulette, Galeton, Westfield, Keating Summit, Denton
Hill State Park, Cherry Springs State Park, Lyman Run State Park,
Austin, Sweden Valley and Ski Denton Ski Area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4165 7750 4159 7816 4180 7821 4193 7754
TIME...MOT...LOC 0241Z 256DEG 22KT 4171 7808
HAIL...1.00IN
WIND...60MPH
$$
Travis2 follow-up statements
396
WWUS51 KCTP 300305
SVSCTP
Severe Weather Statement
National Weather Service State College PA
1105 PM EDT Tue Jun 29 2021
PAC105-117-300345-
/O.CON.KCTP.SV.W.0062.000000T0000Z-210630T0345Z/
Potter PA-Tioga PA-
1105 PM EDT Tue Jun 29 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1145 PM EDT
FOR NORTHEASTERN POTTER AND WEST CENTRAL TIOGA COUNTIES...
At 1104 PM EDT, a severe thunderstorm was approaching Denton Hill
State Park, moving east at 30 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Coudersport, Galeton, Westfield, Denton Hill State Park, Cherry
Springs State Park, Lyman Run State Park, Sweden Valley and Ski
Denton Ski Area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4163 7791 4173 7800 4183 7807 4193 7754
4165 7750
TIME...MOT...LOC 0304Z 260DEG 31KT 4175 7782
HAIL...0.75IN
WIND...60MPH
$$
Travis164
WWUS51 KCTP 300338
SVSCTP
Severe Weather Statement
National Weather Service State College PA
1138 PM EDT Tue Jun 29 2021
PAC105-117-300346-
/O.EXP.KCTP.SV.W.0062.000000T0000Z-210630T0345Z/
Potter PA-Tioga PA-
1138 PM EDT Tue Jun 29 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN POTTER AND WEST
CENTRAL TIOGA COUNTIES WILL EXPIRE AT 1145 PM EDT...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.
LAT...LON 4163 7791 4173 7800 4183 7807 4193 7754
4165 7750
TIME...MOT...LOC 0336Z 256DEG 22KT 4179 7760
$$
TravisThe office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 8:56 PM EDT | Heat Advisory | CTP | Columbia, Dauphin, Lancaster, Lebanon, Lycoming, Montour and 5 more | 22 hr |
| Jun 29, 9:10 PM EDT | Special Weather Statement | CTP | Centre | 20 min |
| Jun 29, 9:16 PM EDT | Severe Thunderstorm Warning | CTP | McKean, Warren | 89 min |
| Jun 29, 9:27 PM EDT | Special Weather Statement | CTP | Centre | 18 min |
| Jun 29, 9:30 PM EDT | Severe Thunderstorm Warning | CTP | Centre | 45 min |
| Jun 29, 10:17 PM EDT | Special Weather Statement | CTP | Sullivan | 28 min |
| Jun 29, 10:27 PM EDT | Special Weather Statement | CTP | Potter | 33 min |
| Jun 29, 10:59 PM EDT | Special Weather Statement | CTP | Lycoming | 31 min |
| Jun 29, 11:23 PM EDT | Special Weather Statement | CTP | Sullivan | 22 min |
| Jun 29, 11:38 PM EDT | Special Weather Statement | CTP | Tioga | 67 min |
| Jun 29, 11:39 PM EDT | Special Weather Statement | CTP | Sullivan | 66 min |
| Jun 30, 6:59 AM EDT | Special Weather Statement | CTP | McKean | 46 min |
| Jun 30, 1:13 PM EDT | Special Weather Statement | CTP | Warren | 47 min |
| Jun 30, 1:46 PM EDT | Special Weather Statement | CTP | Clinton | 29 min |
| Jun 30, 1:59 PM EDT | Special Weather Statement | CTP | McKean | 46 min |
| Jun 30, 2:14 PM EDT | Severe Thunderstorm Warning | CTP | Clinton, Lycoming | 50 min |
| Jun 30, 2:25 PM EDT | Severe Thunderstorm Warning | CTP | Cambria | 28 min |
| Jun 30, 3:15 PM EDT | Special Weather Statement | CTP | Cambria | 45 min |
| Jun 30, 3:24 PM EDT | Special Weather Statement | CTP | Centre | 36 min |
| Jun 30, 3:46 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Montour, Northumberland, Snyder, Union | 44 min |
| Jun 30, 3:59 PM EDT | Special Weather Statement | CTP | Somerset | 46 min |
| Jun 30, 4:22 PM EDT | Special Weather Statement | CTP | Juniata | 38 min |
| Jun 30, 4:42 PM EDT | Special Weather Statement | CTP | Columbia, Montour | 48 min |
| Jun 30, 5:05 PM EDT | Special Weather Statement | CTP | Fulton | 40 min |
| Jun 30, 5:24 PM EDT | Severe Thunderstorm Warning | CTP | Franklin, Fulton | 48 min |
| Jun 30, 6:10 PM EDT | Special Weather Statement | CTP | Cumberland | 35 min |
| Jun 30, 6:27 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland | 48 min |
| Jun 30, 7:00 PM EDT | Special Weather Statement | CTP | Dauphin | 15 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.