Alert archive / Pennsylvania / Heat Advisories in 2016

Heat Advisory 2, NWS State College, PA

August 11, 201616 counties in Pennsylvania

NWS State College, PA issued this heat advisory at Aug 11, 2016, 12:38 PM EDT for 16 counties in Pennsylvania. It took effect at Aug 11, 2016, 1:00 PM EDT. It was in force for 3 days.

The area

The counties it named.

The facts

Issued: Aug 11, 2016, 12:38 PM EDT (16:38 UTC)
In effect from: Aug 11, 2016, 1:00 PM EDT
Expired: Aug 14, 2016, 6:00 PM EDT
In force: 3 days
Issued by: NWS State College, PA

Counties Adams County, PA, Columbia County, PA, Cumberland County, PA, Dauphin County, PA, Franklin County, PA, Juniata County, PA, Lancaster County, PA, Lebanon County, PA, Lycoming County, PA, Montour County, PA, Northumberland County, PA, Perry County, PA, Schuylkill County, PA, Snyder County, PA, Union County, PA, York County, PA

The radar

The State College radar (KCCX), 104 km from the middle of the area, began a volume at 16:40 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

Washington/Dulle, VA (KIAD), launched 12:00Z, 4.6 hours before the alert went out and 180 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: 414 J/kg
Mixed-layer CIN: -162 J/kg
Mixed-layer LCL: 1278 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 99 m²/s²
0-3 km storm-relative helicity: 129 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 heat advisory 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 heat advisory went out at Aug 11, 9:52 AM EDT, 2 hours 46 minutes earlier.

Area forecast discussion, Aug 11, 9:52 AM EDT, 2 hours 46 minutes before

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Hazardous weather outlook, Aug 11, 5:03 AM EDT, 7 hours 35 minutes before

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<body>
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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <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>
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        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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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 10, 8:30 PM EDT	Special Weather Statement	CTP	Centre	30 min
Aug 10, 9:09 PM EDT	Special Weather Statement	CTP	Mifflin	36 min
Aug 10, 11:57 PM EDT	Special Weather Statement	CTP	Bedford	48 min
Aug 11, 12:50 PM EDT	Special Weather Statement	CTP	Cumberland	40 min
Aug 11, 1:26 PM EDT	Special Weather Statement	CTP	Adams	34 min
Aug 11, 2:25 PM EDT	Areal Flood Advisory	CTP	Adams, Cumberland, York	3 hr
Aug 11, 3:35 PM EDT	Special Weather Statement	CTP	Warren	40 min
Aug 11, 3:45 PM EDT	Excessive Heat Watch	CTP	Dauphin, Lancaster, Lebanon, York	37 hr
Aug 11, 4:14 PM EDT	Special Weather Statement	CTP	McKean, Warren	46 min
Aug 11, 4:18 PM EDT	Areal Flood Advisory	CTP	Warren	117 min
Aug 11, 4:32 PM EDT	Areal Flood Advisory	CTP	McKean	58 min
Aug 11, 4:56 PM EDT	Special Weather Statement	CTP	Cameron, McKean, Potter	34 min
Aug 11, 5:32 PM EDT	Areal Flood Advisory	CTP	Cameron, Potter	118 min
Aug 11, 5:33 PM EDT	Special Weather Statement	CTP	Cameron, Potter	57 min
Aug 11, 5:42 PM EDT	Special Weather Statement	CTP	Centre	33 min
Aug 11, 6:15 PM EDT	Special Weather Statement	CTP	Tioga	45 min
Aug 11, 6:23 PM EDT	Special Weather Statement	CTP	Clearfield	37 min
Aug 11, 7:02 PM EDT	Special Weather Statement	CTP	Sullivan	28 min
Aug 11, 7:38 PM EDT	Special Weather Statement	CTP	Lycoming, Sullivan	37 min

Nearby

Heat Advisories in Pennsylvania, 2016 Every heat advisory in 2016

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.