Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 148, NWS State College, PA

July 24, 2010Schuylkill County, Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at Jul 24, 2010, 9:59 PM EDT for Schuylkill County, Pennsylvania. It was in force for 46 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 24, 2010, 9:59 PM EDT (01:59 UTC)
Expired: Jul 24, 2010, 10:45 PM EDT
In force: 46 min
Issued by: NWS State College, PA
Area: Storm-based polygon

County Schuylkill County, PA

The radar

The State College radar (KCCX), 152 km from the middle of the area, began a volume at 02:01 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
Jul 24, 6:48 PM EDT	Tornado Watch	SPC	4 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 00:00Z, 2.0 hours before the alert went out and 220 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: 1790 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 1888 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 105 m²/s²
0-3 km storm-relative helicity: 171 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 5.2

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 Jul 24, 7:43 PM EDT, 2 hours 16 minutes earlier.

Area forecast discussion, Jul 24, 7:43 PM EDT, 2 hours 16 minutes before

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Hazardous weather outlook, Jul 24, 9:32 PM EDT, 27 minutes before

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In the hours before

Special weather statement, Jul 24, 9:07 PM EDT, 52 minutes before

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Local storm report, Jul 24, 9:09 PM EDT, 50 minutes before

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Local storm report, Jul 24, 9:24 PM EDT, 35 minutes before

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Local storm report, Jul 24, 9:28 PM EDT, 31 minutes before

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      <p id="message2">
        Please try again in a few minutes.
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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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Local storm report, Jul 24, 9:33 PM EDT, 26 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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Local storm report, Jul 24, 9:39 PM EDT, 20 minutes before

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  <main class="wrap">
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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.
      </p>
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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
Jul 24, 8:03 PM EDT	Special Weather Statement	CTP	Clinton	42 min
Jul 24, 8:14 PM EDT	Severe Thunderstorm Warning	CTP	Cameron, Clearfield, Elk	76 min
Jul 24, 8:18 PM EDT	Severe Thunderstorm Warning	CTP	Clinton, Lycoming	42 min
Jul 24, 8:35 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming	40 min
Jul 24, 8:57 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clinton, Columbia, Lycoming, Montour, Northumberland and 2 more	78 min
Jul 24, 9:07 PM EDT	Special Weather Statement	CTP	Clearfield	23 min
Jul 24, 9:45 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield	29 min
Jul 24, 10:10 PM EDT	Special Weather Statement	CTP	Clearfield	35 min
Jul 24, 10:32 PM EDT	Special Weather Statement	CTP	Juniata, Mifflin, Snyder	43 min
Jul 24, 11:16 PM EDT	Special Weather Statement	CTP	Dauphin	14 min
Jul 24, 11:35 PM EDT	Special Weather Statement	CTP	Dauphin	25 min
Jul 24, 11:57 PM EDT	Special Weather Statement	CTP	Lebanon	33 min
Jul 25, 8:34 AM EDT	Special Weather Statement	CTP	McKean	56 min
Jul 25, 8:35 AM EDT	Special Weather Statement	CTP	Warren	55 min
Jul 25, 8:41 AM EDT	Areal Flood Advisory	CTP	McKean, Warren	3 hr
Jul 25, 9:27 AM EDT	Special Weather Statement	CTP	Potter, Tioga	63 min
Jul 25, 9:35 AM EDT	Special Weather Statement	CTP	Warren	55 min
Jul 25, 9:46 AM EDT	Special Weather Statement	CTP	McKean	59 min
Jul 25, 10:24 AM EDT	Special Weather Statement	CTP	Cameron, Elk, McKean	66 min
Jul 25, 10:28 AM EDT	Special Weather Statement	CTP	Tioga	62 min
Jul 25, 10:35 AM EDT	Severe Thunderstorm Warning	CTP	Columbia, Lycoming, Montour, Northumberland, Potter, Sullivan and 1 more	55 min
Jul 25, 10:41 AM EDT	Special Weather Statement	CTP	Potter	64 min
Jul 25, 11:19 AM EDT	Special Weather Statement	CTP	Cambria	26 min
Jul 25, 11:42 AM EDT	Severe Thunderstorm Warning	CTP	Cameron, Clinton, Lycoming, Potter	63 min
Jul 25, 11:50 AM EDT	Severe Thunderstorm Warning	CTP	Bedford, Blair, Cambria, Fulton, Huntingdon, Somerset	55 min
Jul 25, 12:06 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Somerset	54 min
Jul 25, 12:29 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Dauphin, Lebanon, Perry	61 min
Jul 25, 12:37 PM EDT	Areal Flood Advisory	CTP	Bedford, Blair, Cambria, Franklin, Fulton, Huntingdon and 4 more	3 hr
Jul 25, 12:44 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clinton, Lycoming, Union	46 min
Jul 25, 12:46 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Cumberland, Franklin, Fulton, Huntingdon, Juniata and 3 more	59 min
Jul 25, 1:03 PM EDT	Tornado Warning	CTP	Dauphin, Lancaster	27 min
Jul 25, 1:15 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, Lebanon	60 min
Jul 25, 1:22 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Montour, Northumberland, Schuylkill, Snyder, Union	38 min
Jul 25, 1:28 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Cumberland, Franklin, Lebanon, York	77 min
Jul 25, 1:38 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, York	52 min
Jul 25, 1:54 PM EDT	Special Weather Statement	CTP	Schuylkill	51 min
Jul 25, 2:06 PM EDT	Tornado Warning	CTP	York	24 min
Jul 25, 2:33 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, York	42 min
Jul 25, 2:38 PM EDT	Areal Flood Advisory	CTP	Adams, Lancaster, York	3 hr

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2010 Every severe thunderstorm warning in 2010

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.