Alert archive / Texas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 317, NWS Midland/Odessa, TX
NWS Midland/Odessa, TX issued this severe thunderstorm warning at Sep 30, 2021, 7:08 PM CDT for Terrell County, Texas. It was in force for 32 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, 7:08 PM CDT (00:08 UTC)
- Expired
- Sep 30, 2021, 7:40 PM CDT
- In force
- 32 min
- Issued by
- NWS Midland/Odessa, TX
- Area
- Storm-based polygon
- Damage threat
- Considerable
- Hail
- 0.75 in
- Wind
- 70.0 mph
County Terrell County, TX
The radar
The San Angelo radar (KSJT), 165 km from the middle of the area, began a volume at 00:09 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
Del Rio, TX (KDRT), launched 00:00Z, 0.1 hours before the alert went out and 142 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
- 2844 J/kg
- Mixed-layer CIN
- -14 J/kg
- Mixed-layer LCL
- 1576 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 50 m²/s²
- 0-3 km storm-relative helicity
- 135 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 7.3
The text
As transmitted.
549
WUUS54 KMAF 010008
SVRMAF
TXC443-010100-
/O.NEW.KMAF.SV.W.0317.211001T0008Z-211001T0100Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Midland/Odessa TX
708 PM CDT Thu Sep 30 2021
The National Weather Service in Midland has issued a
* Severe Thunderstorm Warning for...
Northeastern Terrell County in southwestern Texas...
* Until 800 PM CDT.
* At 707 PM CDT, a severe thunderstorm was located near Terrell
County Gas Plant, or 22 miles south of Sheffield, moving northeast
at 30 mph.
HAZARD...70 mph wind gusts.
SOURCE...Recorded on ASOS.
IMPACT...Expect considerable tree damage. Damage is likely to
mobile homes, roofs, and outbuildings.
* Locations impacted include...
Dryden, Terrell County Gas Plant and Terrell County Airport.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3034 10172 3029 10176 3000 10176 3004 10224
3044 10211 3053 10167 3049 10169 3047 10169
3046 10170 3047 10173 3044 10172 3042 10174
3040 10170 3038 10170 3036 10166 3034 10166
TIME...MOT...LOC 0007Z 247DEG 40KT 3037 10177
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...OBSERVED
MAX WIND GUST...70 MPH
$$1 follow-up statement
376
WWUS54 KMAF 010040
SVSMAF
Severe Weather Statement
National Weather Service Midland/Odessa TX
740 PM CDT Thu Sep 30 2021
TXC443-010050-
/O.CAN.KMAF.SV.W.0317.000000T0000Z-211001T0100Z/
Terrell TX-
740 PM CDT Thu Sep 30 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN TERRELL COUNTY IS
CANCELLED...
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 900 PM CDT for
southwestern Texas.
LAT...LON 3034 10172 3029 10176 3000 10176 3004 10224
3044 10211 3053 10167 3049 10169 3047 10169
3046 10170 3047 10173 3044 10172 3042 10174
3040 10170 3038 10170 3036 10166 3034 10166
TIME...MOT...LOC 0039Z 247DEG 40KT 3051 10137
$$The office that day
Everything else NWS Midland/Odessa, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 30, 7:51 PM CDT | Special Weather Statement | MAF | Terrell | 39 min |
| Sep 30, 8:12 PM CDT | Special Weather Statement | MAF | Jeff Davis | 48 min |
| Oct 1, 5:38 PM CDT | Special Weather Statement | MAF | Presidio | 52 min |
| Oct 1, 5:50 PM CDT | Special Weather Statement | MAF | Terrell | 40 min |
| Oct 1, 5:53 PM CDT | Severe Thunderstorm Warning | MAF | Brewster, Presidio | 16 min |
| Oct 1, 6:07 PM CDT | Severe Thunderstorm Warning | MAF | Brewster, Presidio | 39 min |
| Oct 1, 6:18 PM CDT | Special Weather Statement | MAF | Yoakum | 57 min |
| Oct 1, 6:30 PM CDT | Special Weather Statement | MAF | Terrell | 30 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.