Alert archive / Texas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 25, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Mar 24, 2021, 11:27 PM CDT for Gillespie County, Llano County, Texas. It was in force for 63 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 24, 2021, 11:27 PM CDT (04:27 UTC)
- Expired
- Mar 25, 2021, 12:30 AM CDT
- In force
- 63 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Gillespie County, TX, Llano County, TX
The radar
The Austin/San Antonio radar (KEWX), 132 km from the middle of the area, began a volume at 04:30 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 24, 9:52 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 4.5 hours before the alert went out and 235 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
- 479 J/kg
- Mixed-layer CIN
- -29 J/kg
- Mixed-layer LCL
- 2767 m above ground
- 0-6 km bulk shear
- 80 kt
- 0-1 km storm-relative helicity
- 13 m²/s²
- 0-3 km storm-relative helicity
- 317 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.9
The text
As transmitted.
888
WUUS54 KEWX 250427
SVREWX
TXC171-299-250530-
/O.NEW.KEWX.SV.W.0025.210325T0427Z-210325T0530Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Austin/San Antonio TX
1127 PM CDT Wed Mar 24 2021
The National Weather Service in Austin San Antonio has issued a
* Severe Thunderstorm Warning for...
Northwestern Gillespie County in south central Texas...
Western Llano County in south central Texas...
* Until 1230 AM CDT.
* At 1127 PM CDT, a severe thunderstorm was located 9 miles northwest
of Doss, or 16 miles south of Mason, moving east at 30 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...
Llano, Castell, Field Creek, Cherry Spring, Baby Head, Prairie
Mountain, Enchanted Rock State Natural Area, Doss, Valley Spring,
Oxford and Harper.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 400 AM CDT for south central
Texas.
For your protection move to an interior room on the lowest floor of a
building.
&&
A Tornado Watch remains in effect until 400 AM CDT for south central
Texas.
LAT...LON 3068 9860 3047 9876 3035 9930 3050 9930
3050 9896 3092 9896 3092 9859
TIME...MOT...LOC 0427Z 248DEG 28KT 3051 9927
HAIL...1.00IN
WIND...60MPH
$$
HAMPSHIRE2 follow-up statements
218
WWUS54 KEWX 250452
SVSEWX
Severe Weather Statement
National Weather Service Austin/San Antonio TX
1152 PM CDT Wed Mar 24 2021
TXC171-299-250530-
/O.CON.KEWX.SV.W.0025.000000T0000Z-210325T0530Z/
Gillespie TX-Llano TX-
1152 PM CDT Wed Mar 24 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 AM CDT
FOR NORTH CENTRAL GILLESPIE AND WESTERN LLANO COUNTIES...
At 1152 PM CDT, a severe thunderstorm was located near Hilda, or 16
miles southeast of Mason, moving east at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Llano, Castell, Field Creek, Cherry Spring, Baby Head, Prairie
Mountain, Enchanted Rock State Natural Area, Doss, Valley Spring and
Oxford.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 400 AM CDT for south central
Texas.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3068 9860 3047 9876 3042 9912 3050 9919
3050 9896 3092 9896 3092 9859
TIME...MOT...LOC 0452Z 255DEG 25KT 3055 9909
HAIL...1.00IN
WIND...60MPH
$$
HAMPSHIRE696
WWUS54 KEWX 250529
SVSEWX
Severe Weather Statement
National Weather Service Austin/San Antonio TX
1229 AM CDT Thu Mar 25 2021
TXC171-299-250539-
/O.EXP.KEWX.SV.W.0025.000000T0000Z-210325T0530Z/
Gillespie TX-Llano TX-
1229 AM CDT Thu Mar 25 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL GILLESPIE AND
WESTERN LLANO COUNTIES WILL EXPIRE AT 1230 AM CDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However small hail
and gusty winds are still possible with this thunderstorm.
A Tornado Watch remains in effect until 400 AM CDT for south central
Texas.
LAT...LON 3068 9860 3047 9876 3042 9912 3050 9919
3050 9896 3092 9896 3092 9859
TIME...MOT...LOC 0529Z 248DEG 28KT 3066 9879
$$
HAMPSHIREThe office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 24, 8:24 PM CDT | Severe Thunderstorm Warning | EWX | Edwards | 47 min |
| Mar 24, 10:19 PM CDT | Special Weather Statement | EWX | Edwards | 41 min |
| Mar 24, 10:29 PM CDT | Severe Thunderstorm Warning | EWX | Edwards, Val Verde | 61 min |
| Mar 24, 11:06 PM CDT | Severe Thunderstorm Warning | EWX | Edwards, Real, Val Verde | 54 min |
| Mar 24, 11:51 PM CDT | Severe Thunderstorm Warning | EWX | Edwards, Kinney, Val Verde | 54 min |
| Mar 24, 11:59 PM CDT | Severe Thunderstorm Warning | EWX | Edwards, Kerr, Real | 46 min |
| Mar 25, 12:44 AM CDT | Severe Thunderstorm Warning | EWX | Bandera, Edwards, Kinney, Real, Uvalde | 61 min |
| Mar 25, 1:44 AM CDT | Severe Thunderstorm Warning | EWX | Bandera, Kendall, Kerr, Medina, Real, Uvalde | 61 min |
| Mar 25, 2:44 AM CDT | Special Weather Statement | EWX | Kendall | 46 min |
| Mar 25, 3:24 AM CDT | Special Weather Statement | EWX | Blanco | 36 min |
| Mar 25, 3:49 AM CDT | Special Weather Statement | EWX | Travis | 41 min |
| Mar 25, 4:17 AM CDT | Severe Thunderstorm Warning | EWX | Travis, Williamson | 32 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.