Alert archive / Nebraska / Wind Advisories in 2020

Wind Advisory 17, NWS Omaha, NE

November 14, 20206 counties in Nebraska; 5 counties in Iowa

NWS Omaha, NE issued this wind advisory at Nov 14, 2020, 11:30 AM CST for 6 counties in Nebraska; 5 counties in Iowa. It took effect at Nov 14, 2020, 9:00 PM CST. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued: Nov 14, 2020, 11:30 AM CST (17:30 UTC)
In effect from: Nov 14, 2020, 9:00 PM CST
Expired: Nov 15, 2020, 4:00 AM CST
In force: 7 hr
Issued by: NWS Omaha, NE

Counties Fremont County, IA, Mills County, IA, Montgomery County, IA, Page County, IA, Pottawattamie County, IA, Cass County, NE, Douglas County, NE, Nemaha County, NE, Otoe County, NE, Richardson County, NE, Sarpy County, NE

The radar

The Omaha radar (KOAX), 74 km from the middle of the area, began a volume at 17:28 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, 5.5 hours before the alert went out and 206 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: 871 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 472 m²/s²
0-3 km storm-relative helicity: 519 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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 14, 5:35 AM CST, 5 hours 55 minutes earlier.

Area forecast discussion, Nov 14, 5:35 AM CST, 5 hours 55 minutes before

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Hazardous weather outlook, Nov 14, 4:18 AM CST, 7 hours 12 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 14, 3:31 AM CST	Wind Advisory	OAX	Butler, Gage, Jefferson, Johnson, Lancaster, Pawnee and 2 more	20 hr

Nearby

Wind Advisories in Nebraska, 2020 Wind Advisories in Iowa, 2020 Every wind advisory in 2020

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.