Alert archive / Pennsylvania / Winter Storm Warnings in 2008

Winter Storm Warning 3, NWS Pittsburgh, PA

February 11, 200810 counties in Pennsylvania; 7 counties in Ohio; Brooke County, Hancock County, West Virginia

NWS Pittsburgh, PA issued this winter storm warning at Feb 11, 2008, 2:12 PM EST for 10 counties in Pennsylvania; 7 counties in Ohio; Brooke County, Hancock County, West Virginia. It took effect at Feb 11, 2008, 9:21 PM EST. It was in force for 30 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Feb 11, 2008, 2:12 PM EST (19:12 UTC)
In effect from: Feb 11, 2008, 9:21 PM EST
Expired: Feb 13, 2008, 3:29 AM EST
In force: 30 hr
Issued by: NWS Pittsburgh, PA

Counties Carroll County, OH, Columbiana County, OH, Coshocton County, OH, Harrison County, OH, Jefferson County, OH, Muskingum County, OH, Tuscarawas County, OH, Allegheny County, PA, Armstrong County, PA, Beaver County, PA, Butler County, PA, Clarion County, PA, Forest County, PA, Jefferson County, PA, Lawrence County, PA, Mercer County, PA, Venango County, PA, Brooke County, WV, Hancock County, WV

The radar

The Pittsburgh radar (KPBZ), 28 km from the middle of the area, began a volume at 19:11 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, 7.2 hours before the alert went out and 45 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: 1026 m above ground
0-6 km bulk shear: 67 kt
0-1 km storm-relative helicity: -9 m²/s²
0-3 km storm-relative helicity: 68 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 winter storm warning 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 storm warning went out at Feb 11, 4:14 AM EST, 9 hours 58 minutes earlier.

Area forecast discussion, Feb 11, 4:14 AM EST, 9 hours 58 minutes before

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Hazardous weather outlook, Feb 11, 9:17 AM EST, 4 hours 55 minutes before

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<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.
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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 Pittsburgh, PA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 11, 4:07 AM EST	Winter Storm Watch	PBZ	Armstrong, Butler, Clarion, Forest, Jefferson, Lawrence and 2 more	10 hr
Feb 11, 8:59 AM EST	Wind Chill Advisory	PBZ	Armstrong, Butler, Clarion, Forest, Jefferson, Lawrence and 2 more	3 hr
Feb 11, 2:12 PM EST	Winter Weather Advisory	PBZ	Allegheny, Armstrong, Beaver, Butler, Greene, Lawrence and 1 more	29 hr

Nearby

Winter Storm Warnings in Pennsylvania, 2008 Winter Storm Warnings in Ohio, 2008 Winter Storm Warnings in West Virginia, 2008 Every winter storm warning 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.