Alert archive / Texas / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 9, NWS San Angelo, TX
NWS San Angelo, TX issued this severe thunderstorm warning at Mar 17, 2020, 5:58 PM CDT for Haskell County, Throckmorton County, Texas. It was in force for 62 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
- Mar 17, 2020, 5:58 PM CDT (22:58 UTC)
- Expired
- Mar 17, 2020, 7:00 PM CDT
- In force
- 62 min
- Issued by
- NWS San Angelo, TX
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Haskell County, TX, Throckmorton County, TX
The radar
The Dyess AFB radar (KDYX), 74 km from the middle of the area, began a volume at 23:02 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 |
|---|---|---|---|
| Mar 17, 1:02 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Mar 17, 4:41 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Midland Regional, TX (KMAF), launched 12:00Z, 11.0 hours before the alert went out and 290 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
- 553 J/kg
- Mixed-layer CIN
- -266 J/kg
- Mixed-layer LCL
- 1001 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 111 m²/s²
- 0-3 km storm-relative helicity
- 104 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
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 Mar 17, 2:38 PM CDT, 3 hours 20 minutes earlier.
Area forecast discussion, Mar 17, 2:38 PM CDT, 3 hours 20 minutes before
Area Forecast Discussion National Weather Service San Angelo TX 238 PM CDT Tue Mar 17 2020 .SHORT TERM... (Tonight and Wednesday) ...Possible Severe Thunderstorms... Short term models continue to indicate thunderstorms developing, across West Central Texas tonight. The Storm Prediction Center has much of West Central Texas in a Slight Risk Area, for severe thunderstorms, until 12Z Wednesday (morning). From 12Z Wednesday, through 00Z Thursday (Wednesday evening), all of West Central Texas is in a Slight Risk Area, and locations mainly along and northwest of a line from Barnhart, to San Angelo, to Talpa, and to Atwell are in an Enhanced Risk Area. The main weather threats are large hail, damaging winds, and deadly lightning. Plus, a surface dryline, Wednesday afternoon, could create conditions favorable for tornadoes. The NAM indicates a line of thunderstorms will move through West Central Texas, from west to east, tonight. Also, thunderstorms may produce enough rain tonight to create flash flooding, in some areas. For Wednesday, mainly during the afternoon. expect the same weather threats. Plus, a surface dryline, Wednesday afternoon, could create conditions favorable for tornado development. .LONG TERM... (Wednesday night) ...Severe Thunderstorm Threat Continues... As another energy pulse aloft moves over Texas Wednesday night, another round of severe thunderstorms may develop. Also, the NAM brings a line of thunderstorms across West Central Texas Wednesday night. In addition, the Slight Risk and Enhanced Risk Areas continue Wednesday night, with large hail, damaging winds, and deadly lightning remaining the main threats. Although low, the potential for a tornado will continue, as well. (Thursday through Tuesday) ...Another Cold Front and More Rain... The remainder of the long tern forecast remains highlighted with another cold front and the potential for more rain. Models this cycle bring the cold front, across West Central Texas, late Thursday night into Friday. Following this front, temperatures much cooler than usual mid March temperatures will dominate, until low-level flow, from the southeast, returns on Sunday. As for rain chances, the upper flow, from the southwest, will continue to enhance the potential for showers and thunderstorms, until Sunday. Then, as the upper pattern shifts, a ridge aloft builds over the Plains, by Tuesday. && .PRELIMINARY POINT TEMPS/POPS... Abilene 59 76 60 72 / 80 30 90 5 San Angelo 58 77 60 75 / 90 30 80 0 Junction 60 76 61 79 / 80 20 70 5 Brownwood 60 76 60 76 / 80 20 80 20 Sweetwater 58 76 58 69 / 70 30 80 0 Ozona 58 74 58 76 / 90 20 70 0 && .SJT WATCHES/WARNINGS/ADVISORIES... None. &&
Hazardous weather outlook, Mar 17, 1:05 PM CDT, 4 hours 53 minutes before
Hazardous Weather Outlook National Weather Service San Angelo TX 105 PM CDT Tue Mar 17 2020 TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139- 140-154-155-168>170-181815- 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- 105 PM CDT Tue Mar 17 2020 This Hazardous Weather Outlook is for portions of west central Texas. .DAY ONE...This Afternoon and Tonight Severe thunderstorms are possible this afternoon into tonight. The main hazards will be large hail, damaging winds, and dangerous lightning. Also, heavy rainfall may produce localized flash flooding. .DAYS TWO THROUGH SEVEN...Wednesday through Monday Severe thunderstorms will be possible again Wednesday evening through early Thursday morning. Strong, damaging winds, large hail and a few tornadoes will be possible. .SPOTTER INFORMATION STATEMENT... Spotter activation may be requested on Tuesday night and Wednesday night.
In the hours before
Special weather statement, Mar 17, 3:16 PM CDT, 2 hours 42 minutes before
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Special Weather Statement
National Weather Service San Angelo TX
325 PM CDT Tue Mar 17 2020
TXZ099-172115-
Throckmorton TX-
325 PM CDT Tue Mar 17 2020
...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN THROCKMORTON COUNTY
UNTIL 415 PM CDT...
At 325 PM CDT, Doppler radar was tracking a strong thunderstorm 9
miles east of Irby, or 10 miles west of Throckmorton, moving
northeast at 45 mph.
Nickel size hail and wind gusts up to 50 mph will be possible with
this storm.
This strong thunderstorm will be near...
Throckmorton around 335 PM CDT.
Other locations impacted by this storm include Us-
183 Near The Throckmorton-
Baylor County Line and The Intersection Of Us-380 And Highway 222.
A Severe Thunderstorm Watch remains in effect until 700 PM CDT for
west central Texas.
LAT...LON 3335 9895 3307 9932 3316 9948 3321 9947
3340 9937 3339 9895
TIME...MOT...LOC 2025Z 223DEG 37KT 3317 9935
DanielsSpecial weather statement, Mar 17, 4:15 PM CDT, 1 hour 43 minutes before
Special Weather Statement National Weather Service San Angelo TX 415 PM CDT Tue Mar 17 2020 TXZ098-099-172200- Haskell TX-Throckmorton TX- 415 PM CDT Tue Mar 17 2020 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN HASKELL AND NORTHERN THROCKMORTON COUNTIES UNTIL 500 PM CDT... At 414 PM CDT, Doppler radar was tracking a strong thunderstorm near Throckmorton, moving northeast at 30 mph. Nickel size hail and wind gusts of 50 to 55 mph will be possible with this storm. This storm will remain over mainly rural areas of northeastern Haskell and northern Throckmorton Counties, including the following locations... Us-277 Near The Haskell-Knox County Line and Us- 183 Near The Throckmorton-Baylor County Line. A Severe Thunderstorm Watch remains in effect until 700 PM CDT for west central Texas. LAT...LON 3303 9895 3335 9971 3340 9967 3340 9896 TIME...MOT...LOC 2114Z 221DEG 25KT 3327 9923 Daniels
Local storm report, Mar 17, 4:46 PM CDT, 1 hour 12 minutes before
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Special Weather Statement
National Weather Service San Angelo TX
501 PM CDT Tue Mar 17 2020
TXZ098-172245-
Haskell TX-
501 PM CDT Tue Mar 17 2020
...SIGNIFICANT WEATHER ADVISORY FOR HASKELL COUNTY UNTIL 545 PM
CDT...
At 501 PM CDT, Doppler radar was tracking a strong thunderstorm near
Haskell, moving north at 30 mph.
Penny size hail and winds in excess of 40 mph will be possible with
this storm.
This strong thunderstorm will be near...
Weinert around 520 PM CDT.
Other locations impacted by this storm include Jud, Us-
277 Near The Haskell-Knox County Line and Us-380 Near The Haskell-
Stonewall County Line.
A Severe Thunderstorm Watch remains in effect until midnight CDT for
west central Texas.
LAT...LON 3335 9947 3296 9961 3296 9999 3340 9999
3340 9947
TIME...MOT...LOC 2201Z 195DEG 24KT 3321 9974
DanielsSpecial weather statement, Mar 17, 5:51 PM CDT, 7 minutes before
Special Weather Statement National Weather Service San Angelo TX 551 PM CDT Tue Mar 17 2020 TXZ098-099-172330- Haskell TX-Throckmorton TX- 551 PM CDT Tue Mar 17 2020 ...SIGNIFICANT WEATHER ADVISORY FOR HASKELL AND NORTHWESTERN THROCKMORTON COUNTIES UNTIL 630 PM CDT... At 549 PM CDT, Doppler radar was tracking a strong thunderstorm near Weinert, or 7 miles north of Haskell, moving northeast at 25 mph. Nickel size hail and wind gusts of 50 to 55 mph will be possible with this storm. Additional strong storms will move into southwest Haskell County by 6PM. This strong thunderstorm will be near... Weinert around 600 PM CDT. Millers Creek Reservoir around 630 PM CDT. Other locations impacted by this storm include Jud, Us- 277 Near The Haskell-Knox County Line and Us-380 Near The Haskell- Stonewall County Line. A Severe Thunderstorm Watch remains in effect until midnight CDT for west central Texas. LAT...LON 3296 9971 3296 9999 3340 9999 3340 9927 TIME...MOT...LOC 2249Z 224DEG 24KT 3326 9970 Daniels
The office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 17, 3:16 PM CDT | Special Weather Statement | SJT | Haskell | 29 min |
| Mar 17, 3:25 PM CDT | Special Weather Statement | SJT | Throckmorton | 50 min |
| Mar 17, 4:15 PM CDT | Special Weather Statement | SJT | Throckmorton | 45 min |
| Mar 17, 4:35 PM CDT | Severe Thunderstorm Warning | SJT | Throckmorton | 25 min |
| Mar 17, 5:01 PM CDT | Special Weather Statement | SJT | Haskell | 44 min |
| Mar 17, 5:51 PM CDT | Special Weather Statement | SJT | Haskell | 39 min |
| Mar 17, 6:14 PM CDT | Special Weather Statement | SJT | Jones | 31 min |
| Mar 17, 6:29 PM CDT | Severe Thunderstorm Warning | SJT | Haskell, Jones, Shackelford, Throckmorton | 31 min |
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.