Alert archive / Pennsylvania / Frost Advisories in 2008

Frost Advisory 12, NWS State College, PA

October 3, 200811 counties in Pennsylvania

NWS State College, PA issued this frost advisory at Oct 3, 2008, 10:00 PM EDT for 11 counties in Pennsylvania. It took effect at Oct 3, 2008, 11:20 PM EDT. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued: Oct 3, 2008, 10:00 PM EDT (02:00 UTC)
In effect from: Oct 3, 2008, 11:20 PM EDT
Expired: Oct 4, 2008, 9:00 AM EDT
In force: 10 hr
Issued by: NWS State College, PA

Counties Cameron County, PA, Centre County, PA, Clearfield County, PA, Clinton County, PA, Elk County, PA, Lycoming County, PA, McKean County, PA, Potter County, PA, Sullivan County, PA, Tioga County, PA, Warren County, PA

The radar

The State College radar (KCCX), 59 km from the middle of the area, began a volume at 02:03 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

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 2.0 hours before the alert went out and 176 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1433 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 50 m²/s²
0-3 km storm-relative helicity: 60 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 frost 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 frost advisory went out at Oct 3, 8:33 PM EDT, 1 hour 27 minutes earlier.

Area forecast discussion, Oct 3, 8:33 PM EDT, 1 hour 27 minutes before

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Hazardous weather outlook, Oct 3, 4:07 AM EDT, 17 hours 53 minutes before

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</head>
<body>
  <main class="wrap">
    <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>
      <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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The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 3, 11:20 PM EDT	Freeze Warning	CTP	Cameron, Elk, McKean, Potter	10 hr
Oct 4, 2:54 PM EDT	Frost Advisory	CTP	Lycoming, Sullivan, Tioga, Warren	18 hr

Nearby

Frost Advisories in Pennsylvania, 2008 Every frost advisory in 2008

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.