Alert archive / Texas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 301, NWS Midland/Odessa, TX
NWS Midland/Odessa, TX issued this severe thunderstorm warning at Aug 17, 2021, 7:20 PM CDT for Terrell County, Texas. It was in force for 40 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 17, 2021, 7:20 PM CDT (00:20 UTC)
- Expired
- Aug 17, 2021, 8:00 PM CDT
- In force
- 40 min
- Issued by
- NWS Midland/Odessa, TX
- Area
- Storm-based polygon
- Hail
- 1.5 in
- Wind
- 60.0 mph
County Terrell County, TX
The radar
The Laughlin AFB radar (KDFX), 209 km from the middle of the area, began a volume at 00:22 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 00:00Z, 0.3 hours before the alert went out and 155 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.
- Mixed-layer CAPE
- 491 J/kg
- Mixed-layer CIN
- -77 J/kg
- Mixed-layer LCL
- 1119 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 31 m²/s²
- 0-3 km storm-relative helicity
- 109 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.9
The text
As transmitted.
432
WUUS54 KMAF 180020
SVRMAF
TXC443-180100-
/O.NEW.KMAF.SV.W.0301.210818T0020Z-210818T0100Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Midland/Odessa TX
720 PM CDT Tue Aug 17 2021
The National Weather Service in Midland has issued a
* Severe Thunderstorm Warning for...
Southwestern Terrell County in southwestern Texas...
* Until 800 PM CDT.
* At 720 PM CDT, a severe thunderstorm was located near Sanderson,
moving southeast at 15 mph.
HAZARD...Ping pong ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect
wind damage to roofs, siding, and trees.
* Locations impacted include...
Sanderson, Dryden and Terrell County Airport.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 2986 10225 2985 10226 2987 10227 2986 10228
2988 10230 2988 10232 2993 10239 3015 10257
3019 10257 3031 10225 3003 10194 2985 10223
2985 10225
TIME...MOT...LOC 0020Z 322DEG 13KT 3013 10229
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
241 follow-up statement
574
WWUS54 KMAF 180037
SVSMAF
Severe Weather Statement
National Weather Service Midland/Odessa TX
737 PM CDT Tue Aug 17 2021
TXC443-180100-
/O.CON.KMAF.SV.W.0301.000000T0000Z-210818T0100Z/
Terrell TX-
737 PM CDT Tue Aug 17 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM CDT
FOR SOUTHWESTERN TERRELL COUNTY...
At 737 PM CDT, a severe thunderstorm was located 8 miles west of
Dryden, moving southeast at 15 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Sanderson, Dryden and Terrell County Airport.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 2986 10225 2985 10226 2987 10227 2986 10228
2988 10230 2988 10232 2993 10239 3015 10257
3015 10253 3024 10221 3003 10194 2985 10223
2985 10225
TIME...MOT...LOC 0037Z 322DEG 13KT 3008 10225
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
24The office that day
Everything else NWS Midland/Odessa, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 17, 7:05 PM CDT | Special Weather Statement | MAF | Terrell | 40 min |
| Aug 17, 7:26 PM CDT | Special Weather Statement | MAF | Brewster | 49 min |
| Aug 17, 8:36 PM CDT | Areal Flood Advisory | MAF | Terrell | 114 min |
| Aug 18, 6:21 AM CDT | Dense Fog Advisory | MAF | Andrews, Dawson, Ector, Gaines, Martin, Midland | 4 hr |
| Aug 18, 4:08 PM CDT | Special Weather Statement | MAF | 52 min | |
| Aug 18, 4:10 PM CDT | Special Weather Statement | MAF | Reeves | 50 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2021Every 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.