Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 314, NWS Midland/Odessa, TX

September 30, 2021Brewster County, Pecos County, Texas

NWS Midland/Odessa, TX issued this severe thunderstorm warning at Sep 30, 2021, 4:03 PM CDT for Brewster County, Pecos County, Texas. It was in force for 57 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: Sep 30, 2021, 4:03 PM CDT (21:03 UTC)
Expired: Sep 30, 2021, 5:00 PM CDT
In force: 57 min
Issued by: NWS Midland/Odessa, TX
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Brewster County, TX, Pecos County, TX

The radar

The Midland/Odessa radar (KMAF), 199 km from the middle of the area, began a volume at 21:04 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Sep 30, 12:44 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Midland Regional, TX (KMAF), launched 12:00Z, 9.1 hours before the alert went out and 199 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: 1726 J/kg
Mixed-layer CIN: -108 J/kg
Mixed-layer LCL: 1297 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: -13 m²/s²
0-3 km storm-relative helicity: 8 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

178 
WUUS54 KMAF 302103
SVRMAF
TXC043-371-302200-
/O.NEW.KMAF.SV.W.0314.210930T2103Z-210930T2200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Midland/Odessa TX
403 PM CDT Thu Sep 30 2021

The National Weather Service in Midland has issued a

* Severe Thunderstorm Warning for...
  Southwestern Pecos County in southwestern Texas...
  North central Brewster County in southwestern Texas...

* Until 500 PM CDT.

* At 403 PM CDT, a severe thunderstorm was located 8 miles north of
  Marathon, or 25 miles east of Alpine, moving northeast at 30 mph.

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

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Marathon and Sierra Madera. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3017 10334 3042 10344 3075 10288 3018 10260
TIME...MOT...LOC 2103Z 241DEG 25KT 3034 10324 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

87

1 follow-up statement

192 
WWUS54 KMAF 302129
SVSMAF

Severe Weather Statement
National Weather Service Midland/Odessa TX
429 PM CDT Thu Sep 30 2021

TXC043-371-302200-
/O.CON.KMAF.SV.W.0314.000000T0000Z-210930T2200Z/
Pecos TX-Brewster TX-
429 PM CDT Thu Sep 30 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM CDT
FOR SOUTHWESTERN PECOS AND NORTH CENTRAL BREWSTER COUNTIES...

At 429 PM CDT, a severe thunderstorm was located 15 miles northeast
of Marathon, or 34 miles east of Alpine, moving northeast at 25 mph.

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

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Marathon and Sierra Madera. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3017 10334 3042 10344 3075 10288 3018 10260
TIME...MOT...LOC 2129Z 244DEG 23KT 3039 10307 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

87

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 30, 10:17 AM CDT	Special Weather Statement	MAF	Gaines	43 min
Sep 30, 10:33 AM CDT	Special Weather Statement	MAF	Andrews	42 min
Sep 30, 10:51 AM CDT	Severe Thunderstorm Warning	MAF	Andrews	24 min
Sep 30, 11:13 AM CDT	Severe Thunderstorm Warning	MAF	Andrews, Dawson, Gaines, Martin	47 min
Sep 30, 12:09 PM CDT	Special Weather Statement	MAF	Martin	36 min
Sep 30, 12:22 PM CDT	Severe Thunderstorm Warning	MAF	Howard, Martin	53 min
Sep 30, 1:14 PM CDT	Severe Thunderstorm Warning	MAF	Howard, Mitchell	46 min
Sep 30, 1:43 PM CDT	Special Weather Statement	MAF	Jeff Davis	47 min
Sep 30, 1:46 PM CDT	Special Weather Statement	MAF		44 min
Sep 30, 1:53 PM CDT	Severe Thunderstorm Warning	MAF	Jeff Davis, Presidio	52 min
Sep 30, 1:59 PM CDT	Severe Thunderstorm Warning	MAF	Borden, Howard, Mitchell, Scurry	61 min
Sep 30, 2:29 PM CDT	Special Weather Statement	MAF	Pecos	46 min
Sep 30, 2:46 PM CDT	Special Weather Statement	MAF	Jeff Davis	44 min
Sep 30, 2:50 PM CDT	Special Weather Statement	MAF	Brewster	40 min
Sep 30, 2:54 PM CDT	Areal Flood Advisory	MAF	Howard, Mitchell	3 hr
Sep 30, 3:09 PM CDT	Areal Flood Advisory	MAF	Mitchell, Scurry	3 hr
Sep 30, 3:12 PM CDT	Severe Thunderstorm Warning	MAF	Pecos, Terrell	63 min
Sep 30, 3:14 PM CDT	Areal Flood Advisory	MAF	Jeff Davis	3 hr
Sep 30, 3:28 PM CDT	Special Weather Statement	MAF		47 min
Sep 30, 3:31 PM CDT	Severe Thunderstorm Warning	MAF	Brewster	44 min
Sep 30, 3:37 PM CDT	Special Weather Statement	MAF		53 min
Sep 30, 4:10 PM CDT	Severe Thunderstorm Warning	MAF	Pecos, Terrell	65 min
Sep 30, 4:14 PM CDT	Special Weather Statement	MAF	Glasscock	46 min
Sep 30, 4:34 PM CDT	Special Weather Statement	MAF	Brewster	41 min
Sep 30, 4:53 PM CDT	Severe Thunderstorm Warning	MAF	Brewster, Pecos, Terrell	52 min
Sep 30, 4:56 PM CDT	Areal Flood Advisory	MAF	Pecos, Terrell	3 hr
Sep 30, 5:21 PM CDT	Special Weather Statement	MAF	Terrell	39 min
Sep 30, 6:41 PM CDT	Special Weather Statement	MAF	Terrell	34 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.