Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 161, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at Jul 16, 2021, 4:11 PM EDT for Clearfield County, Pennsylvania. It was in force for 49 min. 2 reports 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 16, 2021, 4:11 PM EDT (20:11 UTC)
- Expired
- Jul 16, 2021, 5:00 PM EDT
- In force
- 49 min
- Issued by
- NWS State College, PA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Clearfield County, PA
The radar
The State College radar (KCCX), 47 km from the middle of the area, began a volume at 20:11 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 16, 4:25 PM EDT | TSTM WND DMG | 1 Se Troutville, PA | TREE ON WIRES IN BRADY TOWNSHIP. |
| Jul 16, 4:48 PM EDT | TSTM WND DMG | Clearfield, PA | LARGE LIMBS DOWN ON ROAD NEAR INTERSECTION OF NICHOLS STREET AND WILLIAMS STREET. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 12:00Z, 8.2 hours before the alert went out and 152 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
- 145 J/kg
- Mixed-layer CIN
- -86 J/kg
- Mixed-layer LCL
- 846 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 61 m²/s²
- 0-3 km storm-relative helicity
- 68 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted.
028
WUUS51 KCTP 162011
SVRCTP
PAC033-162100-
/O.NEW.KCTP.SV.W.0161.210716T2011Z-210716T2100Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service State College PA
411 PM EDT Fri Jul 16 2021
The National Weather Service in State College PA has issued a
* Severe Thunderstorm Warning for...
Northwestern Clearfield County in central Pennsylvania...
* Until 500 PM EDT.
* At 411 PM EDT, a severe thunderstorm was located over Sandy, 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...
DuBois, Clearfield, Sandy, Curwensville, Hyde, Plymptonville,
Rockton, S.B. Elliot State Park, Troutville, Clearfield-Lawrence
Airport and Penn State Dubois.
For those driving on Interstate 80, this includes areas between the
Dubois Route 255 and Woodland exits, specifically from mile markers
102 to 122.
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 4117 7833 4095 7836 4099 7880 4112 7880
TIME...MOT...LOC 2011Z 269DEG 23KT 4107 7880
HAIL...1.00IN
WIND...60MPH
$$
Evanego2 follow-up statements
426
WWUS51 KCTP 162033
SVSCTP
Severe Weather Statement
National Weather Service State College PA
433 PM EDT Fri Jul 16 2021
PAC033-162100-
/O.CON.KCTP.SV.W.0161.000000T0000Z-210716T2100Z/
Clearfield PA-
433 PM EDT Fri Jul 16 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM EDT
FOR NORTHWESTERN CLEARFIELD COUNTY...
At 433 PM EDT, a severe thunderstorm was located over Rockton, moving
east at 25 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Clearfield, Curwensville, Hyde, Plymptonville, Rockton, S.B. Elliot
State Park, Troutville and Clearfield-Lawrence Airport.
For those driving on Interstate 80, this includes areas between the
Dubois Route 255 and Woodland exits, specifically from mile markers
109 to 122.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4117 7833 4095 7836 4099 7880 4106 7880
4109 7862 4115 7851
TIME...MOT...LOC 2033Z 269DEG 23KT 4107 7861
HAIL...1.00IN
WIND...60MPH
$$
Evanego845
WWUS51 KCTP 162050
SVSCTP
Severe Weather Statement
National Weather Service State College PA
450 PM EDT Fri Jul 16 2021
PAC033-162100-
/O.CON.KCTP.SV.W.0161.000000T0000Z-210716T2100Z/
Clearfield PA-
450 PM EDT Fri Jul 16 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM EDT
FOR CENTRAL CLEARFIELD COUNTY...
At 450 PM EDT, a severe thunderstorm was located over Plymptonville,
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...
Clearfield, Curwensville, Hyde, Plymptonville and Clearfield-Lawrence
Airport.
For those driving on Interstate 80, this includes areas between the
Penfield and Woodland exits, specifically from mile markers 113 to
122.
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 4117 7833 4095 7836 4097 7861 4113 7848
TIME...MOT...LOC 2050Z 269DEG 23KT 4107 7846
HAIL...1.00IN
WIND...60MPH
$$
EvanegoThe office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 15, 9:40 PM EDT | Special Weather Statement | CTP | Warren | 50 min |
| Jul 16, 1:22 PM EDT | Flood Watch | CTP | Cameron, Clinton, Elk, Lycoming, McKean, Potter and 3 more | 21 min |
| Jul 16, 1:46 PM EDT | Flash Flood Watch | CTP | Adams, Cameron, Clinton, Columbia, Dauphin, Elk and 12 more | 32 hr |
| Jul 16, 1:59 PM EDT | Special Weather Statement | CTP | Montour | 31 min |
| Jul 16, 2:05 PM EDT | Areal Flood Advisory | CTP | Lycoming, Sullivan | 2 hr |
| Jul 16, 2:18 PM EDT | Severe Thunderstorm Warning | CTP | McKean, Potter | 42 min |
| Jul 16, 2:29 PM EDT | Special Weather Statement | CTP | Montour | 31 min |
| Jul 16, 2:52 PM EDT | Special Weather Statement | CTP | Potter | 23 min |
| Jul 16, 2:59 PM EDT | Areal Flood Advisory | CTP | Columbia, Montour, Northumberland | 2 hr |
| Jul 16, 2:59 PM EDT | Special Weather Statement | CTP | Columbia | 31 min |
| Jul 16, 3:14 PM EDT | Special Weather Statement | CTP | Potter | 31 min |
| Jul 16, 3:19 PM EDT | Special Weather Statement | CTP | Montour | 26 min |
| Jul 16, 3:22 PM EDT | Special Weather Statement | CTP | Juniata, Perry | 38 min |
| Jul 16, 3:54 PM EDT | Special Weather Statement | CTP | Clearfield | 36 min |
| Jul 16, 4:07 PM EDT | Special Weather Statement | CTP | Clearfield | 38 min |
| Jul 16, 4:18 PM EDT | Special Weather Statement | CTP | Tioga | 42 min |
| Jul 16, 4:20 PM EDT | Flash Flood Warning | CTP | Columbia, Montour, Northumberland, Union | 85 min |
| Jul 16, 4:29 PM EDT | Severe Thunderstorm Warning | CTP | Clearfield | 46 min |
| Jul 16, 4:30 PM EDT | Severe Thunderstorm Warning | CTP | Tioga | 45 min |
| Jul 16, 4:47 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming | 43 min |
| Jul 16, 4:57 PM EDT | Special Weather Statement | CTP | Clinton | 33 min |
| Jul 16, 4:59 PM EDT | Areal Flood Advisory | CTP | Lycoming, Tioga | 2 hr |
| Jul 16, 5:10 PM EDT | Areal Flood Advisory | CTP | Sullivan | 3 hr |
| Jul 16, 5:13 PM EDT | Severe Thunderstorm Warning | CTP | Clinton, Lycoming | 32 min |
| Jul 16, 5:25 PM EDT | Special Weather Statement | CTP | Carbon | 20 min |
| Jul 16, 5:31 PM EDT | Flash Flood Warning | CTP | Sullivan | 108 min |
| Jul 16, 5:32 PM EDT | Special Weather Statement | CTP | Clinton | 28 min |
| Jul 16, 5:44 PM EDT | Special Weather Statement | CTP | Centre | 31 min |
| Jul 16, 6:01 PM EDT | Special Weather Statement | CTP | Centre | 29 min |
| Jul 16, 6:02 PM EDT | Severe Thunderstorm Warning | CTP | Sullivan | 45 min |
| Jul 16, 6:31 PM EDT | Special Weather Statement | CTP | Union | 29 min |
| Jul 16, 6:52 PM EDT | Special Weather Statement | CTP | Columbia | 23 min |
| Jul 16, 6:57 PM EDT | Special Weather Statement | CTP | Union | 33 min |
| Jul 16, 7:15 PM EDT | Areal Flood Advisory | CTP | Columbia, Lycoming, Montour, Northumberland, Snyder, Union | 2 hr |
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.