Alert archive / Texas / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 200, NWS San Angelo, TX
NWS San Angelo, TX issued this severe thunderstorm warning at Sep 1, 2020, 3:11 PM CDT for Jones County, Shackelford County, Texas. It was in force for 49 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Sep 1, 2020, 3:11 PM CDT (20:11 UTC)
- Expired
- Sep 1, 2020, 4:00 PM CDT
- In force
- 49 min
- Issued by
- NWS San Angelo, TX
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Jones County, TX, Shackelford County, TX
The radar
The Dyess AFB radar (KDYX), 41 km from the middle of the area, began a volume at 20:13 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
Fort Worth, TX (KFWD), launched 12:00Z, 8.2 hours before the alert went out and 218 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
- 1346 J/kg
- Mixed-layer CIN
- -56 J/kg
- Mixed-layer LCL
- 919 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 170 m²/s²
- 0-3 km storm-relative helicity
- 159 m²/s²
- Significant tornado parameter
- 0.8
- Supercell composite
- 7.9
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS San Angelo, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 1, 2:57 PM CDT, 14 minutes earlier.
Area forecast discussion, Sep 1, 2:57 PM CDT, 14 minutes before
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</html>Hazardous weather outlook, Sep 1, 2:54 PM CDT, 17 minutes before
Hazardous Weather Outlook National Weather Service San Angelo TX 254 PM CDT Tue Sep 1 2020 TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139- 140-154-155-168>170-022000- Fisher-Nolan-Sterling-Coke-Runnels-Irion-Tom Green-Concho- Crockett-Schleicher-Sutton-Haskell-Throckmorton-Jones-Shackelford- Taylor-Callahan-Coleman-Brown-McCulloch-San Saba-Menard-Kimble- Mason- 254 PM CDT Tue Sep 1 2020 This Hazardous Weather Outlook is for portions of west central Texas. .DAY ONE...This Afternoon and Tonight Expect periods of thunderstorms this afternoon and tonight. A few of these storms could become strong to potentially severe. The main threats will be large hail, damaging winds, localized flooding, and lightning. .DAYS TWO THROUGH SEVEN...Wednesday through Monday Expect periods of thunderstorms Wednesday, with a few thunderstorms possible Thursday into Friday. The main concerns will be large hail, damaging winds, localized flooding, and lightning. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated at this time.
In the hours before
Local storm report, Sep 1, 11:22 AM CDT, 3 hours 49 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
1122 AM CDT TUE SEP 1 2020
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0620 PM TSTM WND DMG RULE 33.19N 99.89W
08/31/2020 HASKELL TX PUBLIC
OUTBUILDING AND CHICKEN COOP DESTROYED. PUBLIC ESTIMATED
60-70 MPH WIND GUSTS.
&&Local storm report, Sep 1, 1:39 PM CDT, 1 hour 32 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
139 PM CDT TUE SEP 1 2020
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0748 PM TSTM WND DMG 4 E ARDEN 31.43N 100.70W
08/31/2020 IRION TX PUBLIC
ONE TO TWO INCH TREE LIMBS WERE BROKEN OFF
BY THE WIND.
&&
HGSpecial weather statement, Sep 1, 2:22 PM CDT, 49 minutes before
Special Weather Statement National Weather Service San Angelo TX 222 PM CDT Tue Sep 1 2020 TXZ099-011930- Throckmorton TX- 222 PM CDT Tue Sep 1 2020 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN THROCKMORTON COUNTY UNTIL 230 PM CDT... At 222 PM CDT, Doppler radar was tracking a strong thunderstorm near Woodson, or 15 miles southeast of Throckmorton, moving northeast at 25 mph. Nickel size hail and wind gusts up to 50 mph will be possible with this storm. This storm will remain over mainly rural areas of southeastern Throckmorton County. PRECAUTIONARY/PREPAREDNESS ACTIONS... Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. && LAT...LON 3296 9895 3295 9897 3307 9908 3318 9895 TIME...MOT...LOC 1922Z 230DEG 21KT 3305 9895 SJH
Special weather statement, Sep 1, 2:31 PM CDT, 40 minutes before
Special Weather Statement
National Weather Service San Angelo TX
231 PM CDT Tue Sep 1 2020
TXZ113-114-127-012015-
Shackelford TX-Jones TX-Taylor TX-
231 PM CDT Tue Sep 1 2020
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN JONES...SOUTHWESTERN
SHACKELFORD AND NORTHEASTERN TAYLOR COUNTIES UNTIL 315 PM CDT...
At 230 PM CDT, Doppler radar was tracking a strong thunderstorm near
Hawley, or 10 miles north of Abilene, moving northeast at 15 mph.
Nickel size hail and wind gusts up to 50 mph will be possible with
this storm.
This strong thunderstorm will be near...
Nugent around 300 PM CDT.
Other locations impacted by this storm include Hodges, Lake Fort
Phantom Hill and Impact.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
&&
LAT...LON 3268 9934 3251 9961 3252 9963 3250 9963
3247 9968 3260 9997 3282 9953
TIME...MOT...LOC 1930Z 217DEG 12KT 3260 9971
SJHThe office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 31, 7:47 PM CDT | Severe Thunderstorm Warning | SJT | Irion, Tom Green | 28 min |
| Aug 31, 7:52 PM CDT | Severe Thunderstorm Warning | SJT | Irion | 23 min |
| Aug 31, 7:55 PM CDT | Special Weather Statement | SJT | Coke | 50 min |
| Aug 31, 8:02 PM CDT | Severe Thunderstorm Warning | SJT | Tom Green | 43 min |
| Aug 31, 8:48 PM CDT | Special Weather Statement | SJT | Tom Green | 27 min |
| Sep 1, 2:22 PM CDT | Special Weather Statement | SJT | Throckmorton | 8 min |
| Sep 1, 2:31 PM CDT | Special Weather Statement | SJT | Jones | 44 min |
| Sep 1, 3:03 PM CDT | Areal Flood Advisory | SJT | Callahan, Jones, Shackelford, Taylor | 3 hr |
| Sep 1, 3:27 PM CDT | Severe Thunderstorm Warning | SJT | Shackelford | 48 min |
| Sep 1, 3:36 PM CDT | Special Weather Statement | SJT | Jones | 39 min |
| Sep 1, 4:17 PM CDT | Special Weather Statement | SJT | Shackelford | 43 min |
| Sep 1, 4:29 PM CDT | Special Weather Statement | SJT | Coke | 61 min |
| Sep 1, 4:48 PM CDT | Special Weather Statement | SJT | Jones | 42 min |
| Sep 1, 4:55 PM CDT | Special Weather Statement | SJT | Brown | 65 min |
| Sep 1, 5:04 PM CDT | Special Weather Statement | SJT | Throckmorton | 56 min |
| Sep 1, 5:29 PM CDT | Special Weather Statement | SJT | Jones | 46 min |
| Sep 1, 5:33 PM CDT | Special Weather Statement | SJT | Brown | 42 min |
| Sep 1, 6:34 PM CDT | Areal Flood Advisory | SJT | Callahan, Jones, Shackelford, Taylor | 3 hr |
Nearby
Severe Thunderstorm Warnings in Texas, 2020Every severe thunderstorm warning in 2020
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.