Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2022
Severe Thunderstorm Warning 147, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at Aug 21, 2022, 1:27 PM EDT for Centre County, Clinton County, Lycoming County, Pennsylvania. It was in force for 37 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 21, 2022, 1:27 PM EDT (17:27 UTC)
- Expired
- Aug 21, 2022, 2:04 PM EDT
- In force
- 37 min
- Issued by
- NWS State College, PA
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Centre County, PA, Clinton County, PA, Lycoming County, PA
The radar
The State College radar (KCCX), 50 km from the middle of the area, began a volume at 17:28 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, 5.5 hours before the alert went out and 247 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
- 897 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 575 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- 45 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.6
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS State College, PA wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 21, 9:58 AM EDT, 3 hours 29 minutes earlier.
Area forecast discussion, Aug 21, 9:58 AM EDT, 3 hours 29 minutes before
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</html>Hazardous weather outlook, Aug 21, 3:45 AM EDT, 9 hours 42 minutes before
Hazardous Weather Outlook National Weather Service State College PA 345 AM EDT Sun Aug 21 2022 PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-049>053- 056>059-063>066-220745- Warren-McKean-Potter-Elk-Cameron-Northern Clinton-Clearfield- Northern Centre-Southern Centre-Cambria-Blair-Huntingdon-Mifflin- Juniata-Somerset-Bedford-Fulton-Franklin-Tioga-Northern Lycoming- Sullivan-Southern Clinton-Southern Lycoming-Union-Snyder-Montour- Northumberland-Columbia-Perry-Dauphin-Schuylkill-Lebanon-Cumberland- Adams-York-Lancaster- 345 AM EDT Sun Aug 21 2022 This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...Today and tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Monday through Saturday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
In the hours before
Special weather statement, Aug 21, 12:38 PM EDT, 49 minutes before
Special Weather Statement
National Weather Service State College PA
1238 PM EDT Sun Aug 21 2022
PAZ018-019-211715-
Northern Centre PA-Southern Centre PA-
1238 PM EDT Sun Aug 21 2022
...A STRONG THUNDERSTORM WILL IMPACT SOUTHWESTERN CENTRE COUNTY
THROUGH 115 PM EDT...
At 1236 PM EDT, Doppler radar was tracking a strong thunderstorm over
Port Matilda, moving east at 30 mph.
HAZARD...Wind gusts up to 50 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor hail damage to vegetation
possible.
Locations impacted include...
State College, Bellefonte, Park Forest Village, Boalsburg, Pleasant
Gap, Stormstown, Lemont, Zion, Houserville, Pine Grove Mills, Centre
Hall, Milesburg, Millheim, Ramblewood, Blanchard, Port Matilda,
Spring Mills, Coburn, Madisonburg and Julian.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Very heavy rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 4106 7756 4105 7758 4097 7752 4096 7749
4082 7745 4078 7755 4073 7779 4074 7783
4071 7791 4070 7797 4072 7804 4085 7810
4092 7801 4108 7761
TIME...MOT...LOC 1636Z 253DEG 27KT 4081 7796
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH
TravisSpecial weather statement, Aug 21, 1:10 PM EDT, 17 minutes before
Special Weather Statement
National Weather Service State College PA
110 PM EDT Sun Aug 21 2022
PAZ019-026-027-211800-
Huntingdon PA-Mifflin PA-Southern Centre PA-
110 PM EDT Sun Aug 21 2022
...A STRONG THUNDERSTORM WILL IMPACT NORTHEASTERN HUNTINGDON...
CENTRAL MIFFLIN AND SOUTH CENTRAL CENTRE COUNTIES THROUGH 200 PM
EDT...
At 109 PM EDT, Doppler radar was tracking a strong thunderstorm near
Whipple Dam State Park, moving east at 10 mph.
HAZARD...Wind gusts up to 50 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor hail damage to vegetation
possible.
Locations impacted include...
Lewistown, Burnham, Belleville, Milroy, Highland Park, Yeagertown,
Reedsville, Whipple Dam State Park, Mcalevys Fort, Potters Mills,
Seven Mountains, Maitland and Barrville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Very heavy rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 4072 7790 4081 7758 4061 7749 4061 7750
4059 7750 4059 7788
TIME...MOT...LOC 1709Z 259DEG 10KT 4069 7781
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH
TravisThe office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 21, 12:38 PM EDT | Special Weather Statement | CTP | Centre | 37 min |
| Aug 21, 1:10 PM EDT | Special Weather Statement | CTP | Mifflin | 50 min |
| Aug 21, 1:14 PM EDT | Areal Flood Advisory | CTP | Huntingdon | 2 hr |
| Aug 21, 2:15 PM EDT | Special Weather Statement | CTP | Lycoming | 45 min |
| Aug 21, 2:19 PM EDT | Flash Flood Warning | CTP | Franklin, Fulton | 2 hr |
| Aug 21, 2:20 PM EDT | Areal Flood Advisory | CTP | Juniata, Mifflin | 2 hr |
| Aug 21, 2:28 PM EDT | Areal Flood Advisory | CTP | Cumberland | 2 hr |
| Aug 21, 4:33 PM EDT | Special Weather Statement | CTP | Cambria | 27 min |
| Aug 21, 6:35 PM EDT | Areal Flood Advisory | CTP | Blair | 2 hr |
| Aug 21, 6:39 PM EDT | Areal Flood Advisory | CTP | Cambria | 2 hr |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2022Every severe thunderstorm warning in 2022
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.