Alert archive / Nebraska / Wind Advisories in 2008

Wind Advisory 15, NWS Omaha, NE

December 13, 200826 counties in Nebraska; 8 counties in Iowa

NWS Omaha, NE issued this wind advisory at Dec 13, 2008, 4:25 PM CST for 26 counties in Nebraska; 8 counties in Iowa. It took effect at Dec 14, 2008, 6:00 AM CST. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued: Dec 13, 2008, 4:25 PM CST (22:25 UTC)
In effect from: Dec 14, 2008, 6:00 AM CST
Expired: Dec 14, 2008, 3:50 PM CST
In force: 10 hr
Issued by: NWS Omaha, NE

All 34 counties

Fremont County, IA, Harrison County, IA, Mills County, IA, Monona County, IA, Montgomery County, IA, Page County, IA, Pottawattamie County, IA, Shelby County, IA, Boone County, NE, Burt County, NE, Butler County, NE, Cass County, NE, Colfax County, NE, Cuming County, NE, Dodge County, NE, Douglas County, NE, Gage County, NE, Jefferson County, NE, Johnson County, NE, Lancaster County, NE, Madison County, NE, Nemaha County, NE, Otoe County, NE, Pawnee County, NE, Platte County, NE, Richardson County, NE, Saline County, NE, Sarpy County, NE, Saunders County, NE, Seward County, NE, Stanton County, NE, Thurston County, NE, Washington County, NE, Wayne County, NE

The radar

The Omaha radar (KOAX), 16 km from the middle of the area, began a volume at 22:29 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

Topeka, KS (KTOP), launched 12:00Z, 10.4 hours before the alert went out and 252 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: 1796 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 640 m²/s²
0-3 km storm-relative helicity: 689 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 wind advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Omaha, NE wrote its last area forecast discussion before this wind advisory went out at Dec 13, 3:34 PM CST, 51 minutes earlier.

Area forecast discussion, Dec 13, 3:34 PM CST, 51 minutes before

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Hazardous weather outlook, Dec 13, 4:52 AM CST, 11 hours 33 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 Omaha, NE issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 13, 4:11 PM CST	Winter Weather Advisory	OAX	Antelope, Boone, Cedar, Knox, Madison, Pierce and 2 more	30 hr

Nearby

Wind Advisories in Nebraska, 2008 Wind Advisories in Iowa, 2008 Every wind 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.