Alert archive / Texas / Special Weather Statements in 2021

Special Weather Statement, NWS Midland/Odessa, TX

July 28, 2021Terrell County, Texas

NWS Midland/Odessa, TX issued this special weather statement at Jul 28, 2021, 3:21 PM CDT for Terrell County, Texas. It was in force for 39 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: Jul 28, 2021, 3:21 PM CDT (20:21 UTC)
Expired: Jul 28, 2021, 4:00 PM CDT
In force: 39 min
Issued by: NWS Midland/Odessa, TX

County Terrell County, TX

The radar

The San Angelo radar (KSJT), 161 km from the middle of the area, began a volume at 20:24 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

Del Rio, TX (KDRT), launched 12:00Z, 8.4 hours before the alert went out and 146 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: 692 J/kg
Mixed-layer CIN: -177 J/kg
Mixed-layer LCL: 1378 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: -13 m²/s²
0-3 km storm-relative helicity: 59 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

As transmitted.

529 
WWUS84 KMAF 282021
SPSMAF

Special Weather Statement
National Weather Service Midland/Odessa TX
321 PM CDT Wed Jul 28 2021
 
TXZ082-282100-
Terrell TX-
321 PM CDT Wed Jul 28 2021

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN TERRELL COUNTY UNTIL
400 PM CDT...

At 320 PM CDT, Doppler radar was tracking a strong thunderstorm near
Terrell County Gas Plant, or 17 miles south of Sheffield, moving west
at 15 mph.

Half inch hail and wind gusts up to 50 mph will be possible with this
storm.

Locations impacted include...
Terrell County Gas Plant.

LAT...LON 3049 10169 3047 10169 3046 10170 3047 10173
      3044 10172 3042 10174 3039 10169 3034 10171
      3033 10174 3029 10176 3020 10176 3021 10206
      3062 10201 3052 10168
TIME...MOT...LOC 2020Z 101DEG 12KT 3044 10177 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 28, 3:44 PM CDT	Special Weather Statement	MAF	Mitchell	46 min
Jul 28, 4:15 PM CDT	Areal Flood Advisory	MAF	Pecos, Terrell	3 hr
Jul 28, 4:38 PM CDT	Areal Flood Advisory	MAF	Mitchell	3 hr
Jul 28, 4:49 PM CDT	Areal Flood Advisory	MAF	Reagan	3 hr
Jul 28, 5:19 PM CDT	Special Weather Statement	MAF	Pecos	41 min
Jul 28, 5:22 PM CDT	Areal Flood Advisory	MAF	Pecos	3 hr
Jul 28, 5:23 PM CDT	Special Weather Statement	MAF	Upton	52 min
Jul 28, 5:33 PM CDT	Areal Flood Advisory	MAF	Mitchell, Scurry	3 hr
Jul 28, 5:42 PM CDT	Areal Flood Advisory	MAF	Reagan, Upton	3 hr
Jul 28, 5:57 PM CDT	Special Weather Statement	MAF	Crane	48 min
Jul 28, 6:04 PM CDT	Areal Flood Advisory	MAF	Crane, Upton	3 hr

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.