Alert archive / Texas / Tornado Warnings in 2020
Tornado Warning 7, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this tornado warning at Apr 12, 2020, 4:42 AM CDT for Blanco County, Gillespie County, Llano County, Texas. It was in force for 33 min. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Apr 12, 2020, 4:42 AM CDT (09:42 UTC)
- Expired
- Apr 12, 2020, 5:15 AM CDT
- In force
- 33 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Blanco County, TX, Gillespie County, TX, Llano County, TX
The radar
The Austin/San Antonio radar (KEWX), 96 km from the middle of the area, began a volume at 09:46 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 12, 4:55 AM CDT | TSTM WND DMG | 3 Se Willow City, TX | PICTURES RECEIVED OF SEVERAL TREES AND BRANCHES NEAR 1 FOOT IN DIAMETER ALONG COUNTY ROAD 1631. BALES OF HAY ALSO THROWN ACROSS HERBER-SHAFER ROAD AND SMALL BRANCHES AROUND 1 TO 2 INCHES IN DIAMETER DOWN ON WAHRMUND-AHRENS ROAD. TIME ESTIMATED BY RADAR. DAMAGE |
| Apr 12, 4:55 AM CDT | TORNADO | 3 Se Willow City, TX | CORRECTS PREVIOUS TSTM WND DMG REPORT FROM 3 SE WILLOW CITY. PICTURES RECEIVED OF SEVERAL TREES AND BRANCHES NEAR 1 FOOT IN DIAMETER ALONG COUNTY ROAD 1631. BALES OF HAY ALSO THROWN ACROSS HERBER-SHAFER ROAD AND SMALL BRANCHES AROUND 1 TO 2 INCHES IN DIAMETER |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 12, 1:59 AM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 9.7 hours before the alert went out and 249 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
- 3028 J/kg
- Mixed-layer CIN
- -37 J/kg
- Mixed-layer LCL
- 1174 m above ground
- 0-6 km bulk shear
- 80 kt
- 0-1 km storm-relative helicity
- 185 m²/s²
- 0-3 km storm-relative helicity
- 286 m²/s²
- Significant tornado parameter
- 4.8
- Supercell composite
- 23.5
The text
As transmitted.
212
WFUS54 KEWX 120942
TOREWX
TXC031-171-299-121015-
/O.NEW.KEWX.TO.W.0007.200412T0942Z-200412T1015Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Austin/San Antonio TX
442 AM CDT Sun Apr 12 2020
The National Weather Service in Austin San Antonio has issued a
* Tornado Warning for...
Northwestern Blanco County in south central Texas...
Northeastern Gillespie County in south central Texas...
Southeastern Llano County in south central Texas...
* Until 515 AM CDT.
* At 442 AM CDT, a severe thunderstorm capable of producing a tornado
was located near Eckert, or near Fredericksburg, moving northeast
at 45 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* Locations impacted include...
Fredericksburg, Kingsland, Round Mountain, Horseshoe Bay, Blowout,
Eckert, Willow City and Sunrise Beach Village.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3044 9831 3023 9881 3038 9892 3067 9848
TIME...MOT...LOC 0942Z 238DEG 37KT 3035 9881
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
KCW2 follow-up statements
009
WWUS54 KEWX 120951
SVSEWX
Severe Weather Statement
National Weather Service Austin/San Antonio TX
451 AM CDT Sun Apr 12 2020
TXC031-171-299-121015-
/O.CON.KEWX.TO.W.0007.000000T0000Z-200412T1015Z/
Blanco TX-Gillespie TX-Llano TX-
451 AM CDT Sun Apr 12 2020
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 AM CDT FOR
NORTHWESTERN BLANCO...NORTHEASTERN GILLESPIE AND SOUTHEASTERN LLANO
COUNTIES...
At 450 AM CDT, a severe thunderstorm capable of producing a tornado
was located over Willow City, or 12 miles northeast of
Fredericksburg, moving northeast at 45 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Kingsland, Round Mountain, Horseshoe Bay, Blowout, Eckert, Willow
City and Sunrise Beach Village.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!
&&
LAT...LON 3044 9831 3030 9869 3042 9881 3067 9848
TIME...MOT...LOC 0950Z 238DEG 37KT 3040 9872
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
KCW893
WWUS54 KEWX 120954
SVSEWX
Severe Weather Statement
National Weather Service Austin/San Antonio TX
454 AM CDT Sun Apr 12 2020
TXC031-171-299-121015-
/O.CON.KEWX.TO.W.0007.000000T0000Z-200412T1015Z/
Blanco TX-Gillespie TX-Llano TX-
454 AM CDT Sun Apr 12 2020
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 AM CDT FOR
NORTHWESTERN BLANCO...NORTHEASTERN GILLESPIE AND SOUTHEASTERN LLANO
COUNTIES...
At 454 AM CDT, a confirmed tornado was located over Willow City, or
14 miles northeast of Fredericksburg, moving northeast at 40 mph.
HAZARD...Damaging tornado.
SOURCE...Radar confirmed tornado.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Kingsland, Round Mountain, Horseshoe Bay, Blowout, Eckert, Willow
City and Sunrise Beach Village.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.
Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!
&&
LAT...LON 3044 9831 3032 9868 3042 9878 3067 9848
TIME...MOT...LOC 0954Z 239DEG 36KT 3038 9867
TORNADO...OBSERVED
HAIL...<.75IN
$$
KCWThe office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 11, 7:42 PM CDT | Special Weather Statement | EWX | Val Verde | 48 min |
| Apr 11, 7:57 PM CDT | Severe Thunderstorm Warning | EWX | Val Verde | 49 min |
| Apr 11, 8:30 PM CDT | Severe Thunderstorm Warning | EWX | Kinney, Val Verde | 60 min |
| Apr 11, 8:58 PM CDT | Tornado Warning | EWX | Kinney, Uvalde | 32 min |
| Apr 11, 9:27 PM CDT | Severe Thunderstorm Warning | EWX | Kinney, Uvalde | 48 min |
| Apr 11, 10:11 PM CDT | Severe Thunderstorm Warning | EWX | Uvalde | 64 min |
| Apr 11, 10:15 PM CDT | Special Weather Statement | EWX | Val Verde | 45 min |
| Apr 11, 11:11 PM CDT | Special Weather Statement | EWX | Medina | 49 min |
| Apr 12, 12:05 AM CDT | Special Weather Statement | EWX | Edwards | 40 min |
| Apr 12, 12:17 AM CDT | Special Weather Statement | EWX | Val Verde | 43 min |
| Apr 12, 12:53 AM CDT | Severe Thunderstorm Warning | EWX | Edwards, Val Verde | 67 min |
| Apr 12, 1:16 AM CDT | Special Weather Statement | EWX | Edwards | 44 min |
| Apr 12, 1:53 AM CDT | Severe Thunderstorm Warning | EWX | Edwards, Kerr, Real | 67 min |
| Apr 12, 2:01 AM CDT | Severe Thunderstorm Warning | EWX | Edwards, Val Verde | 25 min |
| Apr 12, 2:23 AM CDT | Wind Advisory | EWX | Atascosa, Bandera, Bastrop, Bexar, Blanco, Burnet and 27 more | 17 hr |
| Apr 12, 2:29 AM CDT | Severe Thunderstorm Warning | EWX | Edwards, Real | 47 min |
| Apr 12, 3:05 AM CDT | Severe Thunderstorm Warning | EWX | Gillespie, Kerr, Real | 40 min |
| Apr 12, 3:44 AM CDT | Severe Thunderstorm Warning | EWX | Blanco, Gillespie, Kendall, Kerr | 46 min |
| Apr 12, 3:48 AM CDT | Severe Thunderstorm Warning | EWX | Burnet, Gillespie, Llano | 57 min |
| Apr 12, 4:04 AM CDT | Tornado Warning | EWX | Llano | 26 min |
| Apr 12, 4:06 AM CDT | Special Weather Statement | EWX | Gillespie | 39 min |
| Apr 12, 4:20 AM CDT | Red Flag Warning | EWX | Atascosa, Dimmit, Frio, Kinney, Maverick, Val Verde and 1 more | 17 hr |
| Apr 12, 4:27 AM CDT | Special Weather Statement | EWX | Gillespie | 48 min |
| Apr 12, 4:39 AM CDT | Severe Thunderstorm Warning | EWX | Burnet, Llano | 66 min |
| Apr 12, 5:08 AM CDT | Tornado Warning | EWX | Blanco, Burnet, Llano | 37 min |
| Apr 12, 5:34 AM CDT | Severe Thunderstorm Warning | EWX | Burnet | 20 min |
| Apr 12, 5:40 AM CDT | Tornado Warning | EWX | Burnet, Travis, Williamson | 35 min |
| Apr 12, 6:10 AM CDT | Special Weather Statement | EWX | Williamson | 50 min |
| Apr 12, 6:28 AM CDT | Special Weather Statement | EWX | Williamson | 47 min |
Nearby
Tornado Warnings in Texas, 2020Every tornado warning in 2020Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.