Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2023
Severe Thunderstorm Warning 149, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at Aug 25, 2023, 1:39 AM EDT for Somerset County, Pennsylvania. It was in force for 66 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 25, 2023, 1:39 AM EDT (05:39 UTC)
- Expired
- Aug 25, 2023, 2:45 AM EDT
- In force
- 66 min
- Issued by
- NWS State College, PA
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 60.0 mph
County Somerset County, PA
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 00:00Z, 5.7 hours before the alert went out and 103 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
- 577 J/kg
- Mixed-layer CIN
- -123 J/kg
- Mixed-layer LCL
- 1056 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 54 m²/s²
- 0-3 km storm-relative helicity
- 132 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
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 25, 12:26 AM EDT, 1 hour 13 minutes earlier.
Area forecast discussion, Aug 25, 12:26 AM EDT, 1 hour 13 minutes before
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</html>Hazardous weather outlook, Aug 24, 5:51 AM EDT, 19 hours 48 minutes before
Hazardous Weather Outlook National Weather Service State College PA 551 AM EDT Thu Aug 24 2023 PAZ036-063>066-251000- Franklin-Cumberland-Adams-York-Lancaster- 551 AM EDT Thu Aug 24 2023 This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...Today and tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Strong to severe thunderstorms with gusty winds are possible Friday afternoon. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. PAZ004>006-010>012-017>019-024>028-033>035-037-041-045-251000- Warren-McKean-Potter-Elk-Cameron-Northern Clinton-Clearfield- Northern Centre-Southern Centre-Cambria-Blair-Huntingdon-Mifflin- Juniata-Somerset-Bedford-Fulton-Tioga-Northern Lycoming- Southern Clinton- 551 AM EDT Thu Aug 24 2023 This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...Today and tonight. Strong to severe thunderstorms with gusty winds, hail and torrential downpours are possible in some locations tonight, especially across the northwest corner of the state. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. PAZ042-046-049>053-056>059-251000- Sullivan-Southern Lycoming-Union-Snyder-Montour-Northumberland- Columbia-Perry-Dauphin-Schuylkill-Lebanon- 551 AM EDT Thu Aug 24 2023 This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...Today and tonight. Heavy showers and thunderstorms are possible tonight, which could result in flooding in a few locations. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. 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 24, 11:43 PM EDT, 1 hour 56 minutes before
Special Weather Statement
National Weather Service State College PA
1143 PM EDT Thu Aug 24 2023
PAZ004-005-250445-
McKean PA-Warren PA-
1143 PM EDT Thu Aug 24 2023
...A STRONG THUNDERSTORM WILL IMPACT WARREN AND NORTHWESTERN MCKEAN
COUNTIES THROUGH 1245 AM EDT...
At 1140 PM EDT, Doppler radar showed a wide area of thunderstorms
developing over the region. A line of storms moving on-shore from
Lake Erie could produce strong wind gusts.
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 is
possible.
Locations impacted include...
Warren, Bradford, Sheffield, Columbus, Youngsville, Wetmore, Russell,
Spring Creek, Scandia, Lottsville, Ludlow, Marshburg, Grand Valley,
Warren South, Garland, Kinzua Dam, Chapman State Park, Tidioute,
Sugar Grove and Starbrick.
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.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
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 4199 7961 4200 7861 4162 7892 4163 7961
TIME...MOT...LOC 0340Z 327DEG 19KT 4214 7964
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...55 MPH
DangeloLocal storm report, Aug 25, 12:48 AM EDT, 51 minutes before
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</html>Special weather statement, Aug 25, 1:09 AM EDT, 30 minutes before
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</html>Special weather statement, Aug 25, 1:16 AM EDT, 23 minutes before
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</html>Local storm report, Aug 25, 1:19 AM EDT, 20 minutes before
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</html>Special weather statement, Aug 25, 1:31 AM EDT, 8 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 |
|---|---|---|---|---|
| Aug 24, 11:43 PM EDT | Special Weather Statement | CTP | Warren | 62 min |
| Aug 24, 11:56 PM EDT | Severe Thunderstorm Warning | CTP | Warren | 64 min |
| Aug 25, 12:46 AM EDT | Severe Thunderstorm Warning | CTP | Cameron, Elk, McKean, Warren | 44 min |
| Aug 25, 1:09 AM EDT | Special Weather Statement | CTP | Cambria, Clearfield | 36 min |
| Aug 25, 1:16 AM EDT | Special Weather Statement | CTP | Cameron, Potter | 29 min |
| Aug 25, 1:31 AM EDT | Special Weather Statement | CTP | Warren | 29 min |
| Aug 25, 2:12 AM EDT | Special Weather Statement | CTP | Cambria, Clearfield, Somerset | 63 min |
| Aug 25, 2:40 AM EDT | Severe Thunderstorm Warning | CTP | Somerset | 50 min |
| Aug 25, 3:12 AM EDT | Special Weather Statement | CTP | Bedford | 48 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.