Alert archive / Texas / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 21, NWS San Angelo, TX
NWS San Angelo, TX issued this severe thunderstorm warning at Mar 18, 2020, 7:36 PM CDT for Shackelford County, Throckmorton County, Texas. It was in force for 54 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
- Mar 18, 2020, 7:36 PM CDT (00:36 UTC)
- Expired
- Mar 18, 2020, 8:30 PM CDT
- In force
- 54 min
- Issued by
- NWS San Angelo, TX
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
The radar
The Dyess AFB radar (KDYX), 61 km from the middle of the area, began a volume at 00:37 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 18, 4:42 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Fort Worth, TX (KFWD), launched 00:00Z, 0.6 hours before the alert went out and 171 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
- 1265 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 888 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 198 m²/s²
- 0-3 km storm-relative helicity
- 237 m²/s²
- Significant tornado parameter
- 1.9
- Supercell composite
- 11.8
The text
As transmitted.
069
WUUS54 KSJT 190036
SVRSJT
TXC417-447-190130-
/O.NEW.KSJT.SV.W.0021.200319T0036Z-200319T0130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service San Angelo TX
736 PM CDT Wed Mar 18 2020
The National Weather Service in San Angelo has issued a
* Severe Thunderstorm Warning for...
Northeastern Shackelford County in west central Texas...
Southeastern Throckmorton County in west central Texas...
* Until 830 PM CDT.
* At 734 PM CDT, a severe thunderstorm was located 8 miles north of
Fort Griffin, or 10 miles southwest of Throckmorton, moving
northeast at 35 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.
* This severe thunderstorm will be near...
Throckmorton around 750 PM CDT.
Elbert around 820 PM CDT.
Other locations impacted by this severe thunderstorm include Lusk,
The Intersection Of Us-183 And Us-283 and The Intersection Of Us-
283 And Ranch Road 209.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until midnight CDT for west central
Texas.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3296 9895 3296 9909 3294 9910 3292 9930
3305 9940 3340 9905 3339 9895
TIME...MOT...LOC 0034Z 228DEG 30KT 3305 9926
HAIL...1.00IN
WIND...60MPH
$$
PO2 follow-up statements
134
WWUS54 KSJT 190045
SVSSJT
Severe Weather Statement
National Weather Service San Angelo TX
745 PM CDT Wed Mar 18 2020
TXC417-190055-
/O.CAN.KSJT.SV.W.0021.000000T0000Z-200319T0130Z/
Shackelford TX-
745 PM CDT Wed Mar 18 2020
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN SHACKELFORD
COUNTY IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until midnight CDT for west central
Texas.
LAT...LON 3296 9895 3296 9921 3310 9930 3330 9911
3334 9895
TIME...MOT...LOC 0045Z 228DEG 30KT 3311 9918
$$
TXC447-190130-
/O.CON.KSJT.SV.W.0021.000000T0000Z-200319T0130Z/
Throckmorton TX-
745 PM CDT Wed Mar 18 2020
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM CDT
FOR EASTERN THROCKMORTON COUNTY...
At 745 PM CDT, a severe thunderstorm was located near Throckmorton,
moving northeast at 35 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.
This severe storm will be near...
Throckmorton around 750 PM CDT.
Elbert around 815 PM CDT.
Other locations impacted by this severe thunderstorm include Lusk,
The Intersection Of Us-183 And Us-283 and The Intersection Of Us-
283 And Ranch Road 209.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until midnight CDT for west central
Texas.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3296 9895 3296 9921 3310 9930 3330 9911
3334 9895
TIME...MOT...LOC 0045Z 228DEG 30KT 3311 9918
HAIL...1.00IN
WIND...60MPH
$$
PO492
WWUS54 KSJT 190101
SVSSJT
Severe Weather Statement
National Weather Service San Angelo TX
801 PM CDT Wed Mar 18 2020
TXC447-190130-
/O.CON.KSJT.SV.W.0021.000000T0000Z-200319T0130Z/
Throckmorton TX-
801 PM CDT Wed Mar 18 2020
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM CDT
FOR SOUTHEASTERN THROCKMORTON COUNTY...
At 800 PM CDT, a severe thunderstorm was located near Elbert, or near
Throckmorton, moving northeast at 35 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
This severe storm will be near...
Elbert around 815 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until midnight CDT for west central
Texas.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3299 9895 3299 9908 3318 9915 3329 9895
TIME...MOT...LOC 0100Z 228DEG 30KT 3320 9907
HAIL...1.00IN
WIND...60MPH
$$
POThe office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 18, 7:05 PM CDT | Special Weather Statement | SJT | Jones | 25 min |
| Mar 18, 7:22 PM CDT | Special Weather Statement | SJT | Throckmorton | 23 min |
| Mar 18, 7:26 PM CDT | Severe Thunderstorm Warning | SJT | Coleman, Runnels | 49 min |
| Mar 18, 7:42 PM CDT | Severe Thunderstorm Warning | SJT | Callahan, Taylor | 63 min |
| Mar 18, 7:52 PM CDT | Tornado Warning | SJT | Callahan, Shackelford, Taylor | 23 min |
| Mar 18, 8:13 PM CDT | Severe Thunderstorm Warning | SJT | Shackelford | 47 min |
| Mar 18, 8:14 PM CDT | Areal Flood Advisory | SJT | Callahan, Runnels, Shackelford, Taylor, Throckmorton | 2 hr |
| Mar 18, 10:11 PM CDT | Special Weather Statement | SJT | Crockett | 64 min |
| Mar 18, 10:51 PM CDT | Severe Thunderstorm Warning | SJT | Crockett | 24 min |
| Mar 18, 11:00 PM CDT | Severe Thunderstorm Warning | SJT | Sterling | 60 min |
| Mar 18, 11:29 PM CDT | Tornado Warning | SJT | Coke, Sterling | 31 min |
| Mar 18, 11:54 PM CDT | Tornado Warning | SJT | Coke, Sterling | 34 min |
| Mar 18, 11:57 PM CDT | Special Weather Statement | SJT | Irion | 48 min |
| Mar 19, 12:22 AM CDT | Tornado Warning | SJT | Nolan | 38 min |
| Mar 19, 12:33 AM CDT | Areal Flood Advisory | SJT | Fisher, Nolan | 3 hr |
| Mar 19, 12:44 AM CDT | Special Weather Statement | SJT | Fisher | 46 min |
| Mar 19, 12:56 AM CDT | Tornado Warning | SJT | Nolan, Taylor | 34 min |
| Mar 19, 1:17 AM CDT | Tornado Warning | SJT | Callahan, Jones, Shackelford, Taylor | 43 min |
| Mar 19, 1:49 AM CDT | Tornado Warning | SJT | Shackelford, Throckmorton | 41 min |
| Mar 19, 2:27 AM CDT | Tornado Warning | SJT | Shackelford | 18 min |
| Mar 19, 2:48 AM CDT | Areal Flood Advisory | SJT | Shackelford | 117 min |
| Mar 19, 4:18 AM CDT | Severe Thunderstorm Warning | SJT | Kimble | 20 min |
| Mar 19, 5:06 AM CDT | Special Weather Statement | SJT | Kimble | 39 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.