Alert archive / Nebraska / Wind Advisories in 2015

Wind Advisory 11, NWS Omaha, NE

November 18, 201510 counties in Nebraska; 5 counties in Iowa

NWS Omaha, NE issued this wind advisory at Nov 18, 2015, 3:39 PM CST for 10 counties in Nebraska; 5 counties in Iowa. It took effect at Nov 19, 2015, 10:00 AM CST. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued: Nov 18, 2015, 3:39 PM CST (21:39 UTC)
In effect from: Nov 19, 2015, 10:00 AM CST
Expired: Nov 19, 2015, 5:00 PM CST
In force: 7 hr
Issued by: NWS Omaha, NE

Counties Harrison County, IA, Monona County, IA, Montgomery County, IA, Pottawattamie County, IA, Shelby County, IA, Antelope County, NE, Burt County, NE, Cedar County, NE, Cuming County, NE, Knox County, NE, Madison County, NE, Pierce County, NE, Stanton County, NE, Thurston County, NE, Wayne County, NE

The radar

The Omaha radar (KOAX), 76 km from the middle of the area, began a volume at 21:43 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 12:00Z, 9.7 hours before the alert went out and 76 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: 580 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: -86 m²/s²
0-3 km storm-relative helicity: -16 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 Nov 18, 3:30 PM CST, 9 minutes earlier.

Area forecast discussion, Nov 18, 3:30 PM CST, 9 minutes before

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Hazardous weather outlook, Nov 18, 5:08 AM CST, 10 hours 31 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 18, 3:39 PM CST	Winter Storm Watch	OAX	Antelope, Burt, Cedar, Colfax, Cuming, Dodge and 8 more	37 hr

Nearby

Wind Advisories in Nebraska, 2015 Wind Advisories in Iowa, 2015 Every wind advisory in 2015

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.