Alert archive / Oklahoma / Special Weather Statements in 2021

Special Weather Statement, NWS Norman, OK

March 22, 2021Kiowa County, Tillman County, Oklahoma

NWS Norman, OK issued this special weather statement at Mar 22, 2021, 5:09 PM CDT for Kiowa County, Tillman County, Oklahoma. It was in force for 36 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Mar 22, 2021, 5:09 PM CDT (22:09 UTC)
Expired
Mar 22, 2021, 5:45 PM CDT
In force
36 min
Issued by
NWS Norman, OK

Counties Kiowa County, OK, Tillman County, OK

The radar

The Altus AFB radar (KFDR), 42 km from the middle of the area, began a volume at 22:08 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

Fort Worth, TX (KFWD), launched 12:00Z, 10.2 hours before the alert went out and 257 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-pSkew-T log-p diagram, Fort Worth, TX at 12:00Z on 2021-03-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Fort Worth, TX at 12:00Z on 2021-03-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 222 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
820 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
222 m²/s²
0-3 km storm-relative helicity
272 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Norman, OK wrote its last area forecast discussion before this special weather statement went out at Mar 22, 3:27 PM CDT, 1 hour 42 minutes earlier.

Area forecast discussion, Mar 22, 3:27 PM CDT, 1 hour 42 minutes before
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Hazardous weather outlook, Mar 22, 11:25 AM CDT, 5 hours 44 minutes before
Hazardous Weather Outlook
National Weather Service Norman OK
1125 AM CDT Mon Mar 22 2021

OKZ004>048-050>052-TXZ083>090-231630-
Harper-Woods-Alfalfa-Grant-Kay-Ellis-Woodward-Major-Garfield-
Noble-Roger Mills-Dewey-Custer-Blaine-Kingfisher-Logan-Payne-
Beckham-Washita-Caddo-Canadian-Oklahoma-Lincoln-Grady-McClain-
Cleveland-Pottawatomie-Seminole-Hughes-Harmon-Greer-Kiowa-Jackson-
Tillman-Comanche-Stephens-Garvin-Murray-Pontotoc-Coal-Cotton-
Jefferson-Carter-Johnston-Atoka-Love-Marshall-Bryan-Hardeman-
Foard-Wilbarger-Wichita-Knox-Baylor-Archer-Clay-
1125 AM CDT Mon Mar 22 2021

This hazardous weather outlook is for portions of northern...
western...central...and southern Oklahoma...and western north
Texas.

.DAY ONE...Through Tonight...

.Thunderstorms...
There is a Slight Risk of severe storms this afternoon and
evening. The Slight Risk area covers locations near and south of a
line extending from Elk City and Weatherford, to Pauls Valley,
and to Ada.

Hail up to the size of golf balls and damaging wind gusts around
60 to 70 mph are the primary hazards. The tornado threat is very
low and primarily confined to locations near and south of Gage, to
Oklahoma City, and to Holdenville. This includes all of western
north Texas. North of the Slight Risk area, a Marginal Risk for
there is a Marginal Risk for Severe Thunderstorms. Hail up to the
size of quarters will be the primary hazard.

Scattered strong to severe thunderstorms are expected to develop
over the eastern Texas panhandle this afternoon and move eastward
through the evening hours. In addition to the severe weather
impacts mentioned, brief heavy rain with the storms will likely
produce minor flooding in areas with poor drainage.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday...

.Thunderstorms...
Isolated, non-severe thunderstorms will be possible Wednesday and
early Thursday.

Get graphics and more details at weather.gov/norman...and follow
our weather forecast office on Twitter and Facebook.

Mahale

In the hours before

Special weather statement, Mar 22, 4:10 PM CDT, 59 minutes before
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Special weather statement, Mar 22, 4:40 PM CDT, 29 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Norman OK
440 PM CDT Mon Mar 22 2021

OKZ023-038-222215-
Caddo OK-Comanche OK-
440 PM CDT Mon Mar 22 2021

...SIGNIFICANT WEATHER ADVISORY FOR southern Caddo and north central
Comanche Counties Until 515 PM CDT...

AT 437 PM CDT, strong thunderstorms were along a line extending from
4 miles north of Meers to near Lake Lawtonka, moving northeast at 45
MPH.

HAZARDS INCLUDE...
Hail up to the size of nickels...
Wind gusts to 50 MPH...

LAT...LON 3485 9866 3486 9862 3494 9862 3523 9840
      3493 9809 3465 9848
TIME...MOT...LOC 2137Z 219DEG 38KT 3484 9860 3475 9851

..speg.
Special weather statement, Mar 22, 4:43 PM CDT, 26 minutes before
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Local storm report, Mar 22, 4:48 PM CDT, 21 minutes before
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Special weather statement, Mar 22, 4:53 PM CDT, 16 minutes before
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Special weather statement, Mar 22, 5:09 PM CDT, 0 minutes before
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The office that day

Everything else NWS Norman, OK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 22, 11:53 AM CDTSpecial Weather StatementOUNComanche, Cotton, Grady, Stephens37 min
Mar 22, 2:18 PM CDTRiver Flood AdvisoryOUNMajor, Woods, Woodward19 hr
Mar 22, 3:20 PM CDTSevere Thunderstorm WarningOUNBeckham, Greer, Harmon, Jackson40 min
Mar 22, 4:10 PM CDTSpecial Weather StatementOUNJackson35 min
Mar 22, 4:40 PM CDTSpecial Weather StatementOUNCaddo, Comanche35 min
Mar 22, 4:43 PM CDTSpecial Weather StatementOUNKiowa32 min
Mar 22, 4:53 PM CDTSpecial Weather StatementOUNKiowa37 min
Mar 22, 6:31 PM CDTSpecial Weather StatementOUNJefferson29 min
Mar 22, 12:00 PM CDTSpecial Weather StatementOUNClay45 min

Nearby

Special Weather Statements in Oklahoma, 2021Every special weather statement 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.