Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2023
Severe Thunderstorm Warning 71, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at Jul 14, 2023, 3:48 PM EDT for 4 counties in Pennsylvania. It was in force for 42 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
- Jul 14, 2023, 3:48 PM EDT (19:48 UTC)
- Expired
- Jul 14, 2023, 4:30 PM EDT
- In force
- 42 min
- Issued by
- NWS State College, PA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Centre County, PA, Clinton County, PA, Mifflin County, PA, Union County, PA
The radar
The State College radar (KCCX), 39 km from the middle of the area, began a volume at 19:47 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, 7.8 hours before the alert went out and 221 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1055 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 30 m²/s²
- 0-3 km storm-relative helicity
- 93 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Jul 14, 3:31 PM EDT, 17 minutes earlier.
Area forecast discussion, Jul 14, 3:31 PM EDT, 17 minutes before
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</html>Hazardous weather outlook, Jul 14, 11:39 AM EDT, 4 hours 9 minutes before
Hazardous Weather Outlook National Weather Service State College PA 1139 AM EDT Fri Jul 14 2023 PAZ004>006-010>012-017>019-024>027-033>035-045-151545- Warren-McKean-Potter-Elk-Cameron-Northern Clinton-Clearfield- Northern Centre-Southern Centre-Cambria-Blair-Huntingdon-Mifflin- Somerset-Bedford-Fulton-Southern Clinton- 1139 AM EDT Fri Jul 14 2023 This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...This afternoon and tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. A wave of low pressure at the surface and aloft will bring a likelihood of thunderstorms Saturday night into Sunday morning. Frequent dangerous cloud to ground lightning, localized gusty winds and heavy rainfall are all possible with the round of mainly nocturnal thunderstorms. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report significant hazardous weather. PAZ028-036-037-041-042-046-049>053-056>059-063>066-151545- Juniata-Franklin-Tioga-Northern Lycoming-Sullivan-Southern Lycoming- Union-Snyder-Montour-Northumberland-Columbia-Perry-Dauphin- Schuylkill-Lebanon-Cumberland-Adams-York-Lancaster- 1139 AM EDT Fri Jul 14 2023 This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...This afternoon and tonight. An upper level disturbance approaching from the Middle Ohio River Valley will combine with the humidity and warmth to spark scattered to numerous showers and thunderstorms this afternoon across primarily eastern half of the state. Some of the storms could produce localized strong wind gusts, heavy rainfall and up to penny sized hail. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. A wave of low pressure at the surface and aloft will bring a likelihood of thunderstorms Saturday night into Sunday morning. Frequent dangerous cloud to ground lightning, localized gusty winds and heavy rainfall are all possible with the round of mainly nocturnal thunderstorms. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report significant hazardous weather.
In the hours before
Special weather statement, Jul 14, 2:02 PM EDT, 1 hour 46 minutes before
Special Weather Statement
National Weather Service State College PA
202 PM EDT Fri Jul 14 2023
PAZ024-025-034-141830-
Bedford PA-Blair PA-Cambria PA-
202 PM EDT Fri Jul 14 2023
...A STRONG THUNDERSTORM WILL IMPACT NORTH CENTRAL BEDFORD...
SOUTHWESTERN BLAIR AND SOUTH CENTRAL CAMBRIA COUNTIES THROUGH 230 PM
EDT...
At 201 PM EDT, Doppler radar was tracking a line of strong
thunderstorms from Beaverdale to Ski Gap, moving northeast at 20 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...
Hollidaysburg, Portage, Roaring Spring, Cresson, Gallitzin,
Claysburg, Loretto, Duncansville, Beaverdale-Lloydell, Lilly,
Sankertown, St. Michael, Ski Gap, Royer, Queen, East Freedom, Spring
Hill, Tunnelhill, Newry and Wilmore.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4025 7852 4032 7876 4054 7863 4040 7826
TIME...MOT...LOC 1801Z 230DEG 19KT 4035 7861
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH
TravisSpecial weather statement, Jul 14, 2:29 PM EDT, 1 hour 19 minutes before
Special Weather Statement
National Weather Service State College PA
229 PM EDT Fri Jul 14 2023
PAZ025-141900-
Blair PA-
229 PM EDT Fri Jul 14 2023
...A STRONG THUNDERSTORM WILL IMPACT CENTRAL BLAIR COUNTY THROUGH 300
PM EDT...
At 229 PM EDT, Doppler radar was tracking a strong thunderstorm over
Hollidaysburg, moving northeast at 25 mph.
HAZARD...Wind gusts of 50 to 55 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...
Altoona, Hollidaysburg, Lakemont, Bellwood, Williamsburg,
Duncansville, Horseshoe Curve, Canoe Creek State Park, Royer, East
Freedom, Newry, Peoples Natural Gas Field, Allegheny Portage Railroad
National Historic Site, Penn State Altoona and Lakemont Park And
Island Waterpark.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
&&
LAT...LON 4042 7856 4045 7856 4047 7854 4066 7838
4047 7813 4043 7817 4035 7837
TIME...MOT...LOC 1829Z 221DEG 22KT 4044 7843
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...55 MPH
TravisSpecial weather statement, Jul 14, 2:38 PM EDT, 1 hour 10 minutes before
Special Weather Statement
National Weather Service State College PA
238 PM EDT Fri Jul 14 2023
PAZ026-141915-
Huntingdon PA-
238 PM EDT Fri Jul 14 2023
...A STRONG THUNDERSTORM WILL IMPACT NORTH CENTRAL HUNTINGDON COUNTY
THROUGH 315 PM EDT...
At 238 PM EDT, Doppler radar was tracking a strong thunderstorm
north of Huntingdon, 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...
Huntingdon, Petersburg and Juniata College.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4050 7806 4056 7808 4064 7788 4046 7785
TIME...MOT...LOC 1838Z 270DEG 11KT 4053 7802
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH
TravisSpecial weather statement, Jul 14, 2:51 PM EDT, 57 minutes before
Special Weather Statement
National Weather Service State College PA
251 PM EDT Fri Jul 14 2023
PAZ025-026-141915-
Blair PA-Huntingdon PA-
251 PM EDT Fri Jul 14 2023
...A STRONG THUNDERSTORM WILL IMPACT NORTHWESTERN HUNTINGDON AND
NORTHEASTERN BLAIR COUNTIES THROUGH 315 PM EDT...
At 251 PM EDT, Doppler radar was tracking a strong thunderstorm near
Sinking Valley, moving northeast at 25 mph.
HAZARD...Wind gusts of 50 to 55 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...
Tyrone, Bald Eagle, Bellwood, Warriors Mark, Tipton, Spruce Creek,
Birmingham, Franklinville, Sinking Valley, Alexandria and Delgrosso's
Amusement Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4058 7834 4074 7821 4074 7812 4069 7794
4070 7793 4069 7790 4050 7817
TIME...MOT...LOC 1851Z 218DEG 23KT 4059 7820
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...55 MPH
TravisLocal storm report, Jul 14, 3:34 PM EDT, 14 minutes before
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</html>Local storm report, Jul 14, 3:38 PM EDT, 10 minutes before
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</html>The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 13, 8:08 PM EDT | Special Weather Statement | CTP | Tioga | 52 min |
| Jul 13, 9:56 PM EDT | Special Weather Statement | CTP | Clearfield | 49 min |
| Jul 13, 10:04 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Cambria, Clearfield | 56 min |
| Jul 13, 10:57 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Centre, Clearfield | 48 min |
| Jul 13, 11:34 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Centre, Clearfield, Clinton | 41 min |
| Jul 13, 11:59 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton, Lycoming, Union | 46 min |
| Jul 14, 12:36 AM EDT | Special Weather Statement | CTP | Lycoming | 39 min |
| Jul 14, 1:14 AM EDT | Special Weather Statement | CTP | Sullivan | 61 min |
| Jul 14, 12:03 PM EDT | Special Weather Statement | CTP | Somerset | 27 min |
| Jul 14, 12:31 PM EDT | Special Weather Statement | CTP | Bedford | 29 min |
| Jul 14, 1:04 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Somerset | 56 min |
| Jul 14, 1:36 PM EDT | Special Weather Statement | CTP | Cambria | 24 min |
| Jul 14, 2:02 PM EDT | Special Weather Statement | CTP | Blair | 28 min |
| Jul 14, 2:29 PM EDT | Special Weather Statement | CTP | Blair | 31 min |
| Jul 14, 2:38 PM EDT | Special Weather Statement | CTP | Huntingdon | 37 min |
| Jul 14, 2:51 PM EDT | Special Weather Statement | CTP | Blair | 24 min |
| Jul 14, 3:11 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Huntingdon, Mifflin | 49 min |
| Jul 14, 4:21 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton, Lycoming, Montour, Northumberland, Union | 39 min |
| Jul 14, 4:25 PM EDT | Special Weather Statement | CTP | Lancaster | 50 min |
| Jul 14, 5:04 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Montour, Northumberland, Sullivan, Union | 41 min |
| Jul 14, 5:12 PM EDT | Special Weather Statement | CTP | Lycoming | 33 min |
| Jul 14, 5:16 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Sullivan | 44 min |
| Jul 14, 6:01 PM EDT | Special Weather Statement | CTP | York | 44 min |
| Jul 14, 6:16 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 44 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2023Every severe thunderstorm warning in 2023
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.