Alert archive / Pennsylvania / Special Weather Statements in 2012

Special Weather Statement, NWS State College, PA

February 25, 2012Northumberland County, Union County, Pennsylvania

NWS State College, PA issued this special weather statement at Feb 25, 2012, 1:50 PM EST for Northumberland County, Union County, Pennsylvania. It was in force for 25 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Feb 25, 2012, 1:50 PM EST (18:50 UTC)
Expired
Feb 25, 2012, 2:15 PM EST
In force
25 min
Issued by
NWS State College, PA

Counties Northumberland County, PA, Union County, PA

The radar

The State College radar (KCCX), 43 km from the middle of the area, began a volume at 18:51 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, 6.8 hours before the alert went out and 226 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-pSkew-T log-p diagram, Washington/Dulle, VA at 12:00Z on 2012-02-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 12:00Z on 2012-02-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -46 square meters per square second.1939587897117136156175194Sfc1 km3 km6 km9 kmRMLM
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
1484 m above ground
0-6 km bulk shear
136 kt
0-1 km storm-relative helicity
-46 m²/s²
0-3 km storm-relative helicity
-56 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Feb 24, 5:21 PM EST, 20 hours 29 minutes earlier.

Area forecast discussion, Feb 24, 5:21 PM EST, 20 hours 29 minutes before
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</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.
      </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>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 25, 5:33 AM ESTSpecial Weather StatementCTPClearfield27 min
Feb 25, 7:00 AM ESTSpecial Weather StatementCTPSnyder45 min
Feb 25, 7:34 AM ESTSpecial Weather StatementCTPJuniata, Mifflin56 min
Feb 25, 8:30 AM ESTSpecial Weather StatementCTPBlair, Centre30 min
Feb 25, 9:46 AM ESTSpecial Weather StatementCTPUnion59 min
Feb 25, 11:17 AM ESTSpecial Weather StatementCTPElk, Union58 min
Feb 25, 3:37 PM ESTSpecial Weather StatementCTPClinton53 min
Feb 25, 5:03 PM ESTSpecial Weather StatementCTPCentre, Snyder27 min
Feb 25, 5:12 PM ESTSpecial Weather StatementCTPBlair, Cambria, Clearfield, Huntingdon63 min
Feb 25, 5:36 PM ESTSpecial Weather StatementCTPCameron, Centre, Clinton54 min
Feb 25, 6:15 PM ESTSpecial Weather StatementCTPBlair, Cambria, Clearfield, Huntingdon, Mifflin60 min
Feb 25, 6:36 PM ESTSpecial Weather StatementCTPCentre, Clinton, Union54 min

Nearby

Special Weather Statements in Pennsylvania, 2012Every special weather statement in 2012

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.