Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 138, NWS State College, PA

August 3, 2024Lancaster County, Lebanon County, Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at Aug 3, 2024, 3:53 PM EDT for Lancaster County, Lebanon 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 3, 2024, 3:53 PM EDT (19:53 UTC)
Expired: Aug 3, 2024, 4:30 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 Lancaster County, PA, Lebanon County, PA

The radar

The State College radar (KCCX), 161 km from the middle of the area, began a volume at 19:56 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 3, 1:20 PM EDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 7.9 hours before the alert went out and 166 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: 318 J/kg
Mixed-layer CIN: -165 J/kg
Mixed-layer LCL: 956 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 9 m²/s²
0-3 km storm-relative helicity: 95 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 Aug 3, 3:22 PM EDT, 31 minutes earlier.

Area forecast discussion, Aug 3, 3:22 PM EDT, 31 minutes before

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Hazardous weather outlook, Aug 3, 3:22 PM EDT, 31 minutes before

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In the hours before

Special weather statement, Aug 3, 2:12 PM EDT, 1 hour 41 minutes before

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Special weather statement, Aug 3, 2:14 PM EDT, 1 hour 39 minutes before

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Special weather statement, Aug 3, 2:53 PM EDT, 1 hour before

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Special weather statement, Aug 3, 3:08 PM EDT, 45 minutes before

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        Please try again in a few minutes.
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Special weather statement, Aug 3, 3:12 PM EDT, 41 minutes before

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<body>
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      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
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      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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Special weather statement, Aug 3, 3:40 PM EDT, 13 minutes before

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      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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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 2, 8:28 PM EDT	Special Weather Statement	CTP	York	17 min
Aug 3, 7:09 AM EDT	Special Weather Statement	CTP	Clearfield	51 min
Aug 3, 12:14 PM EDT	Flood Watch	CTP	Adams, Blair, Cambria, Cameron, Centre, Clearfield and 23 more	9 hr
Aug 3, 12:24 PM EDT	Special Weather Statement	CTP	Cumberland	36 min
Aug 3, 12:47 PM EDT	Flash Flood Warning	CTP	Cumberland	2 hr
Aug 3, 1:01 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Franklin, Huntingdon, Perry	44 min
Aug 3, 1:42 PM EDT	Flash Flood Warning	CTP	Perry	76 min
Aug 3, 1:49 PM EDT	Special Weather Statement	CTP	Dauphin, Lebanon	41 min
Aug 3, 1:58 PM EDT	Special Weather Statement	CTP	Tioga	32 min
Aug 3, 2:12 PM EDT	Special Weather Statement	CTP	Centre	33 min
Aug 3, 2:14 PM EDT	Special Weather Statement	CTP	Franklin, Fulton	31 min
Aug 3, 2:22 PM EDT	Severe Thunderstorm Warning	CTP	Franklin, Fulton	38 min
Aug 3, 2:24 PM EDT	Areal Flood Advisory	CTP	Adams	2 hr
Aug 3, 2:26 PM EDT	Areal Flood Advisory	CTP	Dauphin, Schuylkill	2 hr
Aug 3, 2:53 PM EDT	Special Weather Statement	CTP	Lebanon	37 min
Aug 3, 3:08 PM EDT	Special Weather Statement	CTP	Lancaster	37 min
Aug 3, 3:12 PM EDT	Special Weather Statement	CTP	Blair	33 min
Aug 3, 3:40 PM EDT	Special Weather Statement	CTP	Lancaster, York	50 min
Aug 3, 4:01 PM EDT	Special Weather Statement	CTP	Bedford	29 min
Aug 3, 4:30 PM EDT	Special Weather Statement	CTP	Lancaster	30 min
Aug 3, 4:45 PM EDT	Special Weather Statement	CTP	Lancaster	30 min
Aug 3, 5:01 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, York	44 min
Aug 3, 5:26 PM EDT	Areal Flood Advisory	CTP	Lancaster, York	2 hr
Aug 3, 5:43 PM EDT	Special Weather Statement	CTP	Lancaster	32 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.