Alert archive / Texas / Special Weather Statements in 2021

Special Weather Statement, NWS Lubbock, TX

August 1, 2021Briscoe County, Texas

NWS Lubbock, TX issued this special weather statement at Aug 1, 2021, 1:23 AM CDT for Briscoe County, Texas. It was in force for 37 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: Aug 1, 2021, 1:23 AM CDT (06:23 UTC)
Expired: Aug 1, 2021, 2:00 AM CDT
In force: 37 min
Issued by: NWS Lubbock, TX

County Briscoe County, TX

The radar

The Lubbock radar (KLBB), 113 km from the middle of the area, began a volume at 06:25 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

Midland Regional, TX (KMAF), launched 00:00Z, 6.4 hours before the alert went out and 295 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: 798 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 2467 m above ground
0-6 km bulk shear: 5 kt
0-1 km storm-relative helicity: -17 m²/s²
0-3 km storm-relative helicity: 18 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 Lubbock, TX wrote its last area forecast discussion before this special weather statement went out at Aug 1, 12:30 AM CDT, 53 minutes earlier.

Area forecast discussion, Aug 1, 12:30 AM CDT, 53 minutes before

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Hazardous weather outlook, Jul 31, 2:45 AM CDT, 22 hours 38 minutes before

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In the hours before

Special weather statement, Aug 1, 1:23 AM CDT, 0 minutes before

Special Weather Statement
National Weather Service Lubbock TX
123 AM CDT Sun Aug 1 2021

TXZ024-025-010700-
Briscoe TX-Hall TX-
123 AM CDT Sun Aug 1 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN HALL AND
SOUTHEASTERN BRISCOE COUNTIES UNTIL 200 AM CDT...

At 123 AM CDT, Doppler radar was tracking a strong thunderstorm over
Turkey. This storm was nearly stationary.

Pea size hail and wind gusts of 50 to 55 mph will be possible with
this storm. The West Texas Mesonet 2 miles west-southwest of Turkey
measured a wind gust of 53 mph at 115 AM.

Locations impacted include...
Turkey, Caprock Canyon State Park, and Valley Schools.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

Persons in campgrounds should consider seeking sturdy shelter until
this storm passes.

&&

LAT...LON 3432 10098 3438 10100 3446 10110 3449 10101
      3443 10094 3441 10086 3432 10084
TIME...MOT...LOC 0623Z 254DEG 2KT 3439 10090

SINCAVAGE

The office that day

Everything else NWS Lubbock, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 1, 1:16 AM CDT	Areal Flood Advisory	LUB	Briscoe, Floyd, Hall, Motley	2 hr
Aug 1, 1:38 AM CDT	Areal Flood Advisory	LUB	Briscoe	79 min
Aug 1, 1:43 AM CDT	Areal Flood Advisory	LUB	Hale, Hockley, Lamb, Lubbock	47 min
Aug 1, 2:15 AM CDT	Areal Flood Advisory	LUB	Briscoe, Floyd, Motley	82 min
Aug 1, 2:29 AM CDT	Areal Flood Advisory	LUB	Crosby	71 min
Aug 1, 3:23 AM CDT	Severe Thunderstorm Warning	LUB	Lynn	22 min
Aug 1, 5:22 AM CDT	Special Weather Statement	LUB	Lubbock	23 min
Aug 1, 5:39 AM CDT	Areal Flood Advisory	LUB	Lubbock, Lynn	64 min
Aug 1, 5:45 AM CDT	Special Weather Statement	LUB	Lubbock	30 min

Nearby

Special Weather Statements in Texas, 2021 Every 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.