Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 180, NWS State College, PA

September 9, 2023Blair County, Cambria County, Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at Sep 9, 2023, 2:31 PM EDT for Blair County, Cambria County, Pennsylvania. It was in force for 29 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: Sep 9, 2023, 2:31 PM EDT (18:31 UTC)
Expired: Sep 9, 2023, 3:00 PM EDT
In force: 29 min
Issued by: NWS State College, PA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Blair County, PA, Cambria County, PA

The radar

The State College radar (KCCX), 66 km from the middle of the area, began a volume at 18:30 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

Pittsburgh, PA (KPIT), launched 12:00Z, 6.5 hours before the alert went out and 133 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 62 J/kg
Mixed-layer CIN: -90 J/kg
Mixed-layer LCL: 518 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: 12 m²/s²
0-3 km storm-relative helicity: 30 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 Sep 9, 1:53 PM EDT, 38 minutes earlier.

Area forecast discussion, Sep 9, 1:53 PM EDT, 38 minutes before

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Hazardous weather outlook, Sep 9, 4:38 AM EDT, 9 hours 53 minutes before

Hazardous Weather Outlook
National Weather Service State College PA
438 AM EDT Sat Sep 9 2023

PAZ004-100845-
Warren-
438 AM EDT Sat Sep 9 2023

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...Sunday through Friday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

PAZ005-006-010>012-017>019-024>028-033>036-045-056-063-064-100845-
McKean-Potter-Elk-Cameron-Northern Clinton-Clearfield-
Northern Centre-Southern Centre-Cambria-Blair-Huntingdon-Mifflin-
Juniata-Somerset-Bedford-Fulton-Franklin-Southern Clinton-Perry-
Cumberland-Adams-
438 AM EDT Sat Sep 9 2023

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...Today and tonight.

Thunderstorms will affect most of the area this afternoon or evening.
Some of the storms could become strong enough to produce damaging
wind gusts or flooding rain in a few isolated locations.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

PAZ037-041-042-046-049>053-057>059-065-066-100845-
Tioga-Northern Lycoming-Sullivan-Southern Lycoming-Union-Snyder-
Montour-Northumberland-Columbia-Dauphin-Schuylkill-Lebanon-York-
Lancaster-
438 AM EDT Sat Sep 9 2023

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...Today and tonight.

Thunderstorms will affect most of the area this afternoon or evening.
Some of the storms could become strong enough to produce damaging
wind gusts or flooding rain in a few isolated locations.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Afternoon and evening thunderstorms could produce isolated flooding
on Sunday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Local storm report, Sep 9, 1:12 PM EDT, 1 hour 19 minutes before

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Special weather statement, Sep 9, 1:32 PM EDT, 59 minutes before

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Special weather statement, Sep 9, 2:01 PM EDT, 30 minutes before

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Special weather statement, Sep 9, 2:07 PM EDT, 24 minutes before

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Special weather statement, Sep 9, 2:11 PM EDT, 20 minutes before

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Special weather statement, Sep 9, 2:12 PM EDT, 19 minutes before

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The office that day

Everything else NWS State College, PA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Sep 8, 8:02 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, York	43 min
Sep 8, 8:43 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	47 min
Sep 8, 8:51 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Lancaster, York	24 min
Sep 8, 9:15 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Lancaster, Lebanon, York	45 min
Sep 8, 9:22 PM EDT	Special Weather Statement	CTP	Lancaster	23 min
Sep 8, 10:00 PM EDT	Special Weather Statement	CTP	Schuylkill	30 min
Sep 8, 10:12 PM EDT	Special Weather Statement	CTP	Schuylkill	33 min
Sep 8, 10:45 PM EDT	Special Weather Statement	CTP	Schuylkill	45 min
Sep 8, 10:46 PM EDT	Special Weather Statement	CTP	Carbon	44 min
Sep 8, 11:16 PM EDT	Areal Flood Advisory	CTP	Schuylkill	3 hr
Sep 9, 1:32 PM EDT	Special Weather Statement	CTP	Cameron	28 min
Sep 9, 2:01 PM EDT	Special Weather Statement	CTP	Clearfield	29 min
Sep 9, 2:07 PM EDT	Special Weather Statement	CTP	Clinton	23 min
Sep 9, 2:11 PM EDT	Special Weather Statement	CTP	Somerset	34 min
Sep 9, 2:12 PM EDT	Special Weather Statement	CTP	Somerset	48 min
Sep 9, 2:36 PM EDT	Special Weather Statement	CTP	Clinton	24 min
Sep 9, 2:48 PM EDT	Special Weather Statement	CTP	Somerset	27 min
Sep 9, 3:02 PM EDT	Special Weather Statement	CTP	Tioga	28 min
Sep 9, 3:07 PM EDT	Special Weather Statement	CTP	Centre	23 min
Sep 9, 3:08 PM EDT	Areal Flood Advisory	CTP	Somerset	2 hr
Sep 9, 3:13 PM EDT	Special Weather Statement	CTP	Blair	32 min
Sep 9, 3:17 PM EDT	Special Weather Statement	CTP	Clinton	28 min
Sep 9, 3:34 PM EDT	Special Weather Statement	CTP	Centre	26 min
Sep 9, 3:41 PM EDT	Special Weather Statement	CTP	Somerset	34 min
Sep 9, 3:47 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Centre, Huntingdon	43 min
Sep 9, 4:07 PM EDT	Special Weather Statement	CTP	Huntingdon	23 min
Sep 9, 4:12 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Huntingdon	33 min
Sep 9, 4:15 PM EDT	Special Weather Statement	CTP	Centre	30 min
Sep 9, 4:19 PM EDT	Special Weather Statement	CTP	Lycoming	56 min
Sep 9, 4:24 PM EDT	Special Weather Statement	CTP	Columbia	36 min
Sep 9, 4:32 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clinton	43 min
Sep 9, 4:40 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming, Tioga	50 min
Sep 9, 4:48 PM EDT	Tornado Warning	CTP	Tioga	27 min
Sep 9, 4:50 PM EDT	Special Weather Statement	CTP	Adams, York	25 min
Sep 9, 5:00 PM EDT	Special Weather Statement	CTP	Huntingdon	30 min
Sep 9, 5:00 PM EDT	Special Weather Statement	CTP	Lebanon	45 min
Sep 9, 5:02 PM EDT	Special Weather Statement	CTP	Fulton	28 min
Sep 9, 5:04 PM EDT	Special Weather Statement	CTP	Sullivan	26 min
Sep 9, 5:17 PM EDT	Special Weather Statement	CTP	Clinton	28 min
Sep 9, 5:19 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming	41 min
Sep 9, 5:28 PM EDT	Special Weather Statement	CTP	Lebanon	32 min
Sep 9, 5:29 PM EDT	Special Weather Statement	CTP	Schuylkill	31 min
Sep 9, 5:35 PM EDT	Special Weather Statement	CTP	Juniata	25 min
Sep 9, 5:40 PM EDT	Special Weather Statement	CTP	Bedford	50 min
Sep 9, 5:50 PM EDT	Special Weather Statement	CTP	Lycoming	25 min
Sep 9, 5:54 PM EDT	Special Weather Statement	CTP	Schuylkill	36 min
Sep 9, 6:00 PM EDT	Areal Flood Advisory	CTP	Sullivan	4 hr
Sep 9, 6:00 PM EDT	Special Weather Statement	CTP	Schuylkill	45 min
Sep 9, 6:05 PM EDT	Areal Flood Advisory	CTP	Lycoming	2 hr
Sep 9, 6:16 PM EDT	Areal Flood Advisory	CTP	Schuylkill	119 min
Sep 9, 6:26 PM EDT	Areal Flood Advisory	CTP	Bedford, Fulton	2 hr
Sep 9, 6:29 PM EDT	Special Weather Statement	CTP	Schuylkill	31 min
Sep 9, 6:40 PM EDT	Special Weather Statement	CTP	Snyder	35 min
Sep 9, 6:44 PM EDT	Special Weather Statement	CTP	Huntingdon	31 min
Sep 9, 7:16 PM EDT	Areal Flood Advisory	CTP	Columbia, Montour, Northumberland	119 min
Sep 9, 7:24 PM EDT	Special Weather Statement	CTP	Lancaster	36 min
Sep 9, 7:49 PM EDT	Areal Flood Warning	CTP	Columbia, Montour, Northumberland	116 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2023 Every 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.