Alert archive / Pennsylvania / Winter Weather Advisories in 2012
Winter Weather Advisory 13, NWS Pittsburgh, PA
NWS Pittsburgh, PA issued this winter weather advisory at Oct 31, 2012, 12:53 PM EDT for Fayette County, Westmoreland County, Pennsylvania. It was in force for 22 hr.
The area
The counties it named.
The facts
- Issued
- Oct 31, 2012, 12:53 PM EDT (16:53 UTC)
- Expired
- Nov 1, 2012, 10:36 AM EDT
- In force
- 22 hr
- Issued by
- NWS Pittsburgh, PA
Counties Fayette County, PA, Westmoreland County, PA
The radar
The Pittsburgh radar (KPBZ), 73 km from the middle of the area, began a volume at 16:53 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
Pittsburgh, PA (KPIT), launched 12:00Z, 4.9 hours before the alert went out and 57 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 524 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 238 m²/s²
- 0-3 km storm-relative helicity
- 280 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this winter weather advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Pittsburgh, PA wrote its last area forecast discussion before this winter weather advisory went out at Oct 31, 10:47 AM EDT, 2 hours 6 minutes earlier.
Area forecast discussion, Oct 31, 10:47 AM EDT, 2 hours 6 minutes before
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</html>Hazardous weather outlook, Oct 31, 4:28 AM EDT, 8 hours 25 minutes before
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</html>In the hours before
Local storm report, Oct 31, 7:01 AM EDT, 5 hours 52 minutes before
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<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
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The site you requested is temporarily down for maintenance or an unexpected outage.
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Please try again in a few minutes.
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</html>Local storm report, Oct 31, 11:15 AM EDT, 1 hour 38 minutes before
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<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.
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</html>The office that day
Everything else NWS Pittsburgh, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 31, 12:14 AM EDT | Winter Storm Warning | PBZ | Fayette, Westmoreland | 13 hr |
Nearby
Winter Weather Advisories in Pennsylvania, 2012Winter Weather Advisories in West Virginia, 2012Every winter weather advisory 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.