Alert archive / Nebraska / Wind Advisories in 2008

Wind Advisory 14, NWS Omaha, NE

November 6, 200830 counties in Nebraska; 8 counties in Iowa

NWS Omaha, NE issued this wind advisory at Nov 6, 2008, 4:05 AM CST for 30 counties in Nebraska; 8 counties in Iowa. It took effect at Nov 6, 2008, 9:00 AM CST. It was in force for 31 hr.

The area

The counties it named.

The facts

Issued: Nov 6, 2008, 4:05 AM CST (10:05 UTC)
In effect from: Nov 6, 2008, 9:00 AM CST
Expired: Nov 7, 2008, 3:41 PM CST
In force: 31 hr
Issued by: NWS Omaha, NE

All 38 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, Antelope County, NE, Boone County, NE, Burt County, NE, Butler County, NE, Cass County, NE, Cedar County, NE, Colfax County, NE, Cuming County, NE, Dodge County, NE, Douglas County, NE, Gage County, NE, Jefferson County, NE, Johnson County, NE, Knox County, NE, Lancaster County, NE, Madison County, NE, Nemaha County, NE, Otoe County, NE, Pawnee County, NE, Pierce 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 09:56 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

Omaha, NE (KOAX), launched 00:00Z, 10.1 hours before the alert went out and 16 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: 573 J/kg
Mixed-layer CIN: -18 J/kg
Mixed-layer LCL: 1014 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 110 m²/s²
0-3 km storm-relative helicity: 176 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 2.4

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 Nov 6, 2:55 AM CST, 1 hour 10 minutes earlier.

Area forecast discussion, Nov 6, 2:55 AM CST, 1 hour 10 minutes before

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Hazardous weather outlook, Nov 5, 8:11 PM CST, 7 hours 54 minutes before

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The office that day

Everything else NWS Omaha, NE issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Nov 5, 6:06 PM CST	Severe Thunderstorm Warning	OAX	Pawnee, Richardson	24 min
Nov 5, 6:15 PM CST	Tornado Warning	OAX	Otoe	30 min

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.