Alert archive / Texas / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 844, NWS Norman, OK

August 29, 20194 counties in Texas

NWS Norman, OK issued this severe thunderstorm warning at Aug 29, 2019, 5:47 PM CDT for 4 counties in Texas. It was in force for 43 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 29, 2019, 5:47 PM CDT (22:47 UTC)
Expired: Aug 29, 2019, 6:30 PM CDT
In force: 43 min
Issued by: NWS Norman, OK
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Baylor County, TX, Foard County, TX, Knox County, TX, Wilbarger County, TX

The radar

The Altus AFB radar (KFDR), 77 km from the middle of the area, began a volume at 22:47 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, 10.8 hours before the alert went out and 256 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: 931 J/kg
Mixed-layer CIN: -216 J/kg
Mixed-layer LCL: 1391 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 221 m²/s²
0-3 km storm-relative helicity: 327 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 5.7

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Aug 29, 2:28 PM CDT, 3 hours 19 minutes earlier.

Area forecast discussion, Aug 29, 2:28 PM CDT, 3 hours 19 minutes before

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Hazardous weather outlook, Aug 29, 12:09 PM CDT, 5 hours 38 minutes before

Hazardous Weather Outlook
National Weather Service Norman OK
1209 PM CDT Thu Aug 29 2019

OKZ004>048-050>052-TXZ083>090-301715-
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-
1209 PM CDT Thu Aug 29 2019

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

.DAY ONE...This Afternoon and Tonight...

.Thunderstorms...
A few isolated thunderstorms are possible this afternoon, mainly
in parts of southeast and south central Oklahoma. Severe storms
are not expected but small hail, gusty winds, and heavy downpours
are possible with the strongest storms.

Late tonight into early Friday, an area of thunderstorms that
develop in Kansas is expected to move south into portions of
northern Oklahoma, with the highest chances in north central
Oklahoma. Some of these storms could be strong to severe with
strong wind gusts and hail possible. Locally heavy rain that could
lead to flooding will also be a concern.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday...

.Thunderstorms...
The area of thunderstorms is expected to continue to move
south through at least Friday morning and could continue into the
afternoon hours impacting portions of central and southern
Oklahoma. The highest chances will remain along and east of I-35.
Some of these storms could be strong to severe with strong wind
gusts and hail. Locally heavy rain that could lead to flooding
will also be a concern.

Additional thunderstorms will be possible late Friday through
Saturday night. Some strong to severe storms are possible with
damaging wind gusts and hail. Locally heavy rainfall that could
lead to flooding will also continue to be a concern.

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

In the hours before

Special weather statement, Aug 29, 4:58 PM CDT, 49 minutes before

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Special weather statement, Aug 29, 5:14 PM CDT, 33 minutes before

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Special weather statement, Aug 29, 5:17 PM CDT, 30 minutes before

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Special weather statement, Aug 29, 5:27 PM CDT, 20 minutes before

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Local storm report, Aug 29, 5:32 PM CDT, 15 minutes before

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Special weather statement, Aug 29, 5:38 PM CDT, 9 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 29, 7:06 AM CDT	Special Weather Statement	OUN	Ellis	24 min
Aug 29, 7:37 AM CDT	Special Weather Statement	OUN	Roger Mills	23 min
Aug 29, 7:54 AM CDT	Special Weather Statement	OUN	Woodward	36 min
Aug 29, 8:05 AM CDT	Special Weather Statement	OUN	Ellis	25 min
Aug 29, 8:31 AM CDT	Special Weather Statement	OUN	Woodward	29 min
Aug 29, 8:33 AM CDT	Special Weather Statement	OUN	Ellis	27 min
Aug 29, 8:48 AM CDT	Special Weather Statement	OUN	Roger Mills	27 min
Aug 29, 9:00 AM CDT	Special Weather Statement	OUN	Woodward	30 min
Aug 29, 9:11 AM CDT	Special Weather Statement	OUN	Woods	34 min
Aug 29, 9:30 AM CDT	Special Weather Statement	OUN	Roger Mills	30 min
Aug 29, 10:19 AM CDT	Special Weather Statement	OUN	Woodward	26 min
Aug 29, 11:14 AM CDT	Special Weather Statement	OUN	Roger Mills	31 min
Aug 29, 12:04 PM CDT	Special Weather Statement	OUN	Major	26 min
Aug 29, 12:28 PM CDT	Special Weather Statement	OUN	Major	32 min
Aug 29, 2:34 PM CDT	Flood Watch	OUN	Garfield, Grant, Kay, Lincoln, Logan, Noble and 1 more	21 hr
Aug 29, 5:14 PM CDT	Special Weather Statement	OUN	Comanche	31 min
Aug 29, 5:38 PM CDT	Special Weather Statement	OUN	Tillman	37 min
Aug 29, 6:29 PM CDT	Severe Thunderstorm Warning	OUN	Jackson, Tillman	46 min
Aug 29, 6:55 PM CDT	Special Weather Statement	OUN	Tillman	35 min
Aug 29, 4:18 PM CDT	Special Weather Statement	OUN	Wichita	27 min
Aug 29, 4:22 PM CDT	Special Weather Statement	OUN	Foard	38 min
Aug 29, 4:33 PM CDT	Severe Thunderstorm Warning	OUN	Archer, Baylor, Wichita, Wilbarger	28 min
Aug 29, 4:34 PM CDT	Special Weather Statement	OUN	Hardeman	26 min
Aug 29, 4:58 PM CDT	Special Weather Statement	OUN	Foard	32 min
Aug 29, 5:11 PM CDT	Severe Thunderstorm Warning	OUN	Foard, Hardeman	49 min
Aug 29, 5:17 PM CDT	Special Weather Statement	OUN	Baylor	28 min
Aug 29, 5:27 PM CDT	Special Weather Statement	OUN	Foard	33 min
Aug 29, 5:30 PM CDT	Severe Thunderstorm Warning	OUN	Baylor, Wilbarger	19 min
Aug 29, 5:53 PM CDT	Severe Thunderstorm Warning	OUN	Foard, Hardeman, Wilbarger	52 min
Aug 29, 5:58 PM CDT	Special Weather Statement	OUN	Foard	32 min
Aug 29, 6:09 PM CDT	Special Weather Statement	OUN	Wilbarger	21 min
Aug 29, 6:17 PM CDT	Special Weather Statement	OUN	Wilbarger	28 min

Nearby

Severe Thunderstorm Warnings in Texas, 2019 Every severe thunderstorm warning in 2019

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.