Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 151, NWS State College, PA

August 6, 2024Adams County, Cumberland County, York County, Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at Aug 6, 2024, 6:30 PM EDT for Adams County, Cumberland County, York County, Pennsylvania. It was in force for 45 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 6, 2024, 6:30 PM EDT (22:30 UTC)
Expired: Aug 6, 2024, 7:15 PM EDT
In force: 45 min
Issued by: NWS State College, PA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Adams County, PA, Cumberland County, PA, York County, PA

The radar

The Sterling radar (KLWX), 118 km from the middle of the area, began a volume at 22:32 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Aug 6, 11:42 AM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 10.5 hours before the alert went out and 119 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: 527 J/kg
Mixed-layer CIN: -107 J/kg
Mixed-layer LCL: 1272 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 19 m²/s²
0-3 km storm-relative helicity: 93 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

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 Aug 6, 4:22 PM EDT, 2 hours 8 minutes earlier.

Area forecast discussion, Aug 6, 4:22 PM EDT, 2 hours 8 minutes before

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Hazardous weather outlook, Aug 6, 4:20 PM EDT, 2 hours 10 minutes before

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In the hours before

Local storm report, Aug 6, 6:04 PM EDT, 26 minutes before

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Local storm report, Aug 6, 6:11 PM EDT, 19 minutes before

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Special weather statement, Aug 6, 6:12 PM EDT, 18 minutes before

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Special weather statement, Aug 6, 6:17 PM EDT, 13 minutes before

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Local storm report, Aug 6, 6:19 PM EDT, 11 minutes before

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Local storm report, Aug 6, 6:29 PM EDT, 1 minute 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
Aug 6, 12:30 AM EDT	Special Weather Statement	CTP	Lycoming	45 min
Aug 6, 1:28 PM EDT	Special Weather Statement	CTP	Bedford	32 min
Aug 6, 1:46 PM EDT	Special Weather Statement	CTP	Clearfield	44 min
Aug 6, 2:03 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield	57 min
Aug 6, 2:35 PM EDT	Special Weather Statement	CTP	Lancaster	25 min
Aug 6, 2:39 PM EDT	Special Weather Statement	CTP	Clearfield	36 min
Aug 6, 2:44 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clearfield	61 min
Aug 6, 2:49 PM EDT	Special Weather Statement	CTP	Cambria	26 min
Aug 6, 2:53 PM EDT	Special Weather Statement	CTP	Centre	37 min
Aug 6, 2:54 PM EDT	Flood Watch	CTP	Columbia, Dauphin, Lancaster, Lebanon, Schuylkill, York	13 hr
Aug 6, 3:04 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Huntingdon	41 min
Aug 6, 3:16 PM EDT	Areal Flood Advisory	CTP	Adams, Lancaster, York	119 min
Aug 6, 3:21 PM EDT	Special Weather Statement	CTP	Cambria	24 min
Aug 6, 3:24 PM EDT	Severe Thunderstorm Warning	CTP	Centre	66 min
Aug 6, 3:28 PM EDT	Special Weather Statement	CTP	Lancaster	32 min
Aug 6, 3:45 PM EDT	Special Weather Statement	CTP	Montour	45 min
Aug 6, 3:52 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, York	38 min
Aug 6, 3:58 PM EDT	Special Weather Statement	CTP	Blair, Huntingdon, Mifflin	32 min
Aug 6, 4:06 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Huntingdon	39 min
Aug 6, 4:07 PM EDT	Flash Flood Warning	CTP	Lancaster	2 hr
Aug 6, 4:16 PM EDT	Areal Flood Advisory	CTP	Blair, Centre, Huntingdon, Mifflin	74 min
Aug 6, 4:25 PM EDT	Special Weather Statement	CTP	Columbia	20 min
Aug 6, 4:33 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Mifflin, Perry, Snyder	57 min
Aug 6, 4:42 PM EDT	Special Weather Statement	CTP	Huntingdon, Juniata, Mifflin	48 min
Aug 6, 4:52 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Blair, Franklin, Huntingdon, Juniata, Mifflin and 1 more	38 min
Aug 6, 4:58 PM EDT	Special Weather Statement	CTP	Lebanon	32 min
Aug 6, 5:05 PM EDT	Severe Thunderstorm Warning	CTP	Lebanon	25 min
Aug 6, 5:18 PM EDT	Special Weather Statement	CTP	Fulton	12 min
Aug 6, 5:23 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Juniata, Lebanon, Northumberland, Perry, Schuylkill and 1 more	37 min
Aug 6, 5:28 PM EDT	Special Weather Statement	CTP	Schuylkill	32 min
Aug 6, 5:32 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Dauphin, Franklin, Fulton, Huntingdon, Juniata and 1 more	43 min
Aug 6, 5:56 PM EDT	Special Weather Statement	CTP	Lebanon, Schuylkill	34 min
Aug 6, 6:12 PM EDT	Special Weather Statement	CTP	Cumberland, Franklin, Fulton	33 min
Aug 6, 6:17 PM EDT	Special Weather Statement	CTP	Lebanon	28 min
Aug 6, 7:14 PM EDT	Special Weather Statement	CTP	Adams	31 min
Aug 6, 7:32 PM EDT	Areal Flood Advisory	CTP	Lancaster, Lebanon	118 min
Aug 6, 7:39 PM EDT	Special Weather Statement	CTP	Cambria, Clearfield	51 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2024 Every severe thunderstorm warning in 2024

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.