Alert archive / Oklahoma / Wind Advisories in 2021

Wind Advisory 17, NWS Norman, OK

November 17, 202119 counties in Oklahoma

NWS Norman, OK issued this wind advisory at Nov 17, 2021, 9:54 AM CST for 19 counties in Oklahoma. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued: Nov 17, 2021, 9:54 AM CST (15:54 UTC)
Expired: Nov 17, 2021, 3:00 PM CST
In force: 5 hr
Issued by: NWS Norman, OK

Counties Beckham County, OK, Blaine County, OK, Caddo County, OK, Canadian County, OK, Comanche County, OK, Cotton County, OK, Custer County, OK, Dewey County, OK, Garfield County, OK, Grady County, OK, Greer County, OK, Harmon County, OK, Jackson County, OK, Kingfisher County, OK, Kiowa County, OK, Major County, OK, Roger Mills County, OK, Tillman County, OK, Washita County, OK

The radar

The Altus AFB radar (KFDR), 105 km from the middle of the area, began a volume at 15:52 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

Amarillo Airport, TX (KAMA), launched 12:00Z, 3.9 hours before the alert went out and 265 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: 2400 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 79 m²/s²
0-3 km storm-relative helicity: 127 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

774 
WWUS74 KOUN 171554
NPWOUN

URGENT - WEATHER MESSAGE
National Weather Service Norman OK
954 AM CST Wed Nov 17 2021

OKZ011-012-014>018-021>024-027-033>038-044-172100-
/O.NEW.KOUN.WI.Y.0017.211117T1554Z-211117T2100Z/
Major-Garfield-Roger Mills-Dewey-Custer-Blaine-Kingfisher-Beckham-
Washita-Caddo-Canadian-Grady-Harmon-Greer-Kiowa-Jackson-Tillman-
Comanche-Cotton-
Including the cities of Fairview, Enid, Cheyenne, Hammon, 
Seiling, Vici, Taloga, Leedey, Weatherford, Clinton, Watonga, 
Geary, Okeene, Kingfisher, Hennessey, Okarche, Elk City, Sayre, 
Cordell, Burns Flat, Sentinel, Anadarko, Hinton, Yukon, Concho, 
El Reno, Mustang, Chickasha, Tuttle, Hollis, Mangum, Granite, 
Hobart, Snyder, Altus, Frederick, Lawton, Walters, and Temple
954 AM CST Wed Nov 17 2021

...WIND ADVISORY IN EFFECT UNTIL 3 PM CST THIS AFTERNOON...

* WHAT...North winds 20 to 30 mph with gusts of 40 to 45 mph.

* WHERE...Portions of central, northern, northwest, southwest 
  and western Oklahoma.

* WHEN...Until 3 PM CST this afternoon.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

Thompson

&&

$$

Nearby

Wind Advisories in Oklahoma, 2021 Every wind advisory in 2021

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.