Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 300, NWS Midland/Odessa, TX

August 9, 2021Gaines County, Texas

NWS Midland/Odessa, TX issued this severe thunderstorm warning at Aug 9, 2021, 7:25 PM CDT for Gaines County, Texas. It was in force for 35 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 9, 2021, 7:25 PM CDT (00:25 UTC)
Expired: Aug 9, 2021, 8:00 PM CDT
In force: 35 min
Issued by: NWS Midland/Odessa, TX
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Gaines County, TX

The radar

The Midland/Odessa radar (KMAF), 87 km from the middle of the area, began a volume at 00:27 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, 0.4 hours before the alert went out and 86 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: 1419 J/kg
Mixed-layer CIN: -18 J/kg
Mixed-layer LCL: 2534 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: -26 m²/s²
0-3 km storm-relative helicity: 28 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

997 
WUUS54 KMAF 100025
SVRMAF
TXC165-100100-
/O.NEW.KMAF.SV.W.0300.210810T0025Z-210810T0100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Midland/Odessa TX
725 PM CDT Mon Aug 9 2021

The National Weather Service in Midland has issued a

* Severe Thunderstorm Warning for...
  Southwestern Gaines County in western Texas...

* Until 800 PM CDT.

* At 725 PM CDT, a severe thunderstorm was located over Gaines County
  Airport, or near Seminole, moving northwest at 10 mph.

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Seminole and Gaines County Airport. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3264 10247 3252 10263 3252 10271 3262 10291
      3284 10258
TIME...MOT...LOC 0025Z 129DEG 7KT 3265 10267 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

1 follow-up statement

552 
WWUS54 KMAF 100042
SVSMAF

Severe Weather Statement
National Weather Service Midland/Odessa TX
742 PM CDT Mon Aug 9 2021

TXC165-100100-
/O.CON.KMAF.SV.W.0300.000000T0000Z-210810T0100Z/
Gaines TX-
742 PM CDT Mon Aug 9 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM CDT
FOR SOUTHWESTERN GAINES COUNTY...

At 741 PM CDT, a severe thunderstorm was located over Gaines County
Airport, or near Seminole, moving northwest at 10 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Seminole and Gaines County Airport. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3264 10247 3252 10263 3252 10271 3262 10291
      3284 10258
TIME...MOT...LOC 0041Z 129DEG 7KT 3267 10270 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

The office that day

Everything else NWS Midland/Odessa, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 9, 7:10 PM CDT	Special Weather Statement	MAF	Andrews, Ector, Gaines	35 min
Aug 9, 7:24 PM CDT	Severe Thunderstorm Warning	MAF	Andrews, Gaines	36 min
Aug 10, 2:24 PM CDT	Areal Flood Advisory	MAF	Jeff Davis, Pecos	3 hr
Aug 10, 2:49 PM CDT	Areal Flood Advisory	MAF	Jeff Davis	3 hr
Aug 10, 3:13 PM CDT	Special Weather Statement	MAF	Pecos	47 min
Aug 10, 3:17 PM CDT	Special Weather Statement	MAF		43 min
Aug 10, 3:37 PM CDT	Areal Flood Advisory	MAF	Brewster, Jeff Davis	3 hr
Aug 10, 3:42 PM CDT	Areal Flood Advisory	MAF	Pecos	3 hr
Aug 10, 3:47 PM CDT	Special Weather Statement	MAF	Presidio	43 min
Aug 10, 4:02 PM CDT	Special Weather Statement	MAF	Ward	43 min
Aug 10, 4:26 PM CDT	Special Weather Statement	MAF	Brewster	49 min
Aug 10, 4:37 PM CDT	Areal Flood Advisory	MAF	Pecos, Reeves, Ward	3 hr
Aug 10, 4:42 PM CDT	Areal Flood Advisory	MAF	Brewster	3 hr
Aug 10, 4:49 PM CDT	Special Weather Statement	MAF	Ward, Winkler	41 min
Aug 10, 5:07 PM CDT	Special Weather Statement	MAF	Brewster	38 min
Aug 10, 5:34 PM CDT	Special Weather Statement	MAF	Ector, Ward, Winkler	41 min
Aug 10, 6:01 PM CDT	Special Weather Statement	MAF	Brewster	44 min

Nearby

Severe Thunderstorm Warnings in Texas, 2021 Every severe thunderstorm warning 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.