Alert archive / Nebraska / Wind Advisories in 2023

Wind Advisory 6, NWS Omaha, NE

April 15, 202330 counties in Nebraska; 8 counties in Iowa

NWS Omaha, NE issued this wind advisory at Apr 15, 2023, 2:40 PM CDT for 30 counties in Nebraska; 8 counties in Iowa. It took effect at Apr 16, 2023, 10:00 AM CDT. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued: Apr 15, 2023, 2:40 PM CDT (19:40 UTC)
In effect from: Apr 16, 2023, 10:00 AM CDT
Expired: Apr 16, 2023, 7:00 PM CDT
In force: 9 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 19:40 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, 7.7 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 753 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 84 m²/s²
0-3 km storm-relative helicity: 74 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 Apr 15, 12:33 PM CDT, 2 hours 7 minutes earlier.

Area forecast discussion, Apr 15, 12:33 PM CDT, 2 hours 7 minutes before

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Hazardous weather outlook, Apr 15, 11:40 AM CDT, 3 hours before

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In the hours before

Local storm report, Apr 15, 9:03 AM CDT, 5 hours 37 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
Apr 14, 7:05 PM CDT	Severe Thunderstorm Warning	OAX	Johnson, Nemaha, Otoe, Pawnee	55 min
Apr 14, 7:24 PM CDT	Severe Thunderstorm Warning	OAX	Cass, Otoe	54 min
Apr 14, 7:26 PM CDT	Flash Flood Warning	OAX	Douglas, Sarpy	3 hr
Apr 14, 7:27 PM CDT	Severe Thunderstorm Warning	OAX	Cass, Otoe	63 min
Apr 14, 7:39 PM CDT	Severe Thunderstorm Warning	OAX	Lancaster, Saline, Seward	30 min
Apr 14, 7:44 PM CDT	Flash Flood Warning	OAX	Cass, Lancaster, Otoe, Sarpy	3 hr
Apr 14, 7:54 PM CDT	Severe Thunderstorm Warning	OAX	Johnson, Nemaha, Pawnee	47 min
Apr 14, 8:01 PM CDT	Severe Thunderstorm Warning	OAX	Sarpy	59 min
Apr 14, 8:30 PM CDT	Severe Thunderstorm Warning	OAX	Gage, Johnson, Otoe	47 min
Apr 14, 8:52 PM CDT	Flash Flood Warning	OAX	Sarpy	3 hr
Apr 14, 8:52 PM CDT	Severe Thunderstorm Warning	OAX	Johnson, Nemaha, Otoe	41 min
Apr 14, 9:14 PM CDT	Severe Thunderstorm Warning	OAX	Cass, Otoe	61 min
Apr 15, 2:39 PM CDT	Red Flag Warning	OAX	Antelope, Boone, Burt, Butler, Cedar, Colfax and 15 more	29 hr
Apr 14, 8:32 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Pottawattamie, Shelby	58 min
Apr 14, 8:36 PM CDT	Severe Thunderstorm Warning	OAX	Pottawattamie	54 min
Apr 14, 9:41 PM CDT	Special Weather Statement	OAX	Page	49 min
Apr 14, 9:51 PM CDT	Severe Thunderstorm Warning	OAX	Mills, Montgomery, Page, Pottawattamie	54 min
Apr 14, 10:44 PM CDT	Special Weather Statement	OAX	Fremont	16 min
Apr 14, 11:00 PM CDT	Special Weather Statement	OAX	Mills	15 min

Nearby

Wind Advisories in Nebraska, 2023 Wind Advisories in Iowa, 2023 Every wind advisory in 2023

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.