Alert archive / Texas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 34, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 12, 2021, 10:42 PM CDT for Edwards County, Kerr 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
- Apr 12, 2021, 10:42 PM CDT (03:42 UTC)
- Expired
- Apr 12, 2021, 11:45 PM 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 Edwards County, TX, Kerr County, TX
The radar
The Laughlin AFB radar (KDFX), 120 km from the middle of the area, began a volume at 03:44 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 |
|---|---|---|---|
| Apr 12, 3:51 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 3.7 hours before the alert went out and 146 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
- 2255 J/kg
- Mixed-layer CIN
- -208 J/kg
- Mixed-layer LCL
- 1434 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 111 m²/s²
- 0-3 km storm-relative helicity
- 206 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.6
The text
As transmitted.
739
WUUS54 KEWX 130342
SVREWX
TXC137-265-130445-
/O.NEW.KEWX.SV.W.0034.210413T0342Z-210413T0445Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Austin/San Antonio TX
1042 PM CDT Mon Apr 12 2021
The National Weather Service in Austin San Antonio has issued a
* Severe Thunderstorm Warning for...
Northwestern Kerr County in south central Texas...
Northeastern Edwards County in south central Texas...
* Until 1145 PM CDT.
* At 1041 PM CDT, a severe thunderstorm was located near Telegraph,
or 16 miles southwest of Junction, 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...
Kerr Wildlife Management Area, Us-83 Near The Kerr-
Kimble County Line, Us-377 Near The Kimble-Edwards County Line, I-
10 Near The Kimble-Kerr County Line and The Intersection Of I-
10 And Us 290.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3029 9946 3004 9954 3019 10001 3029 9997
TIME...MOT...LOC 0341Z 291DEG 25KT 3027 9988
HAIL...1.00IN
WIND...60MPH
$$
YB2 follow-up statements
833
WWUS54 KEWX 130405
SVSEWX
Severe Weather Statement
National Weather Service Austin/San Antonio TX
1105 PM CDT Mon Apr 12 2021
TXC137-265-130445-
/O.CON.KEWX.SV.W.0034.000000T0000Z-210413T0445Z/
Kerr TX-Edwards TX-
1105 PM CDT Mon Apr 12 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1145 PM CDT
FOR NORTHWESTERN KERR AND NORTHEASTERN EDWARDS COUNTIES...
At 1105 PM CDT, a severe thunderstorm was located 9 miles southeast
of Telegraph, or 17 miles south of Junction, moving east at 15 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Kerr Wildlife Management Area, Us-83 Near The Kerr-
Kimble County Line, I-10 Near The Kimble-
Kerr County Line and The Intersection Of I-10 And Us 290.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3021 9988 3029 9985 3029 9946 3004 9954
TIME...MOT...LOC 0405Z 287DEG 15KT 3024 9978
HAIL...1.00IN
WIND...60MPH
$$
YB588
WWUS54 KEWX 130431
SVSEWX
Severe Weather Statement
National Weather Service Austin/San Antonio TX
1131 PM CDT Mon Apr 12 2021
TXC137-130440-
/O.CAN.KEWX.SV.W.0034.000000T0000Z-210413T0445Z/
Edwards TX-
1131 PM CDT Mon Apr 12 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN EDWARDS COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 3021 9974 3029 9970 3029 9946 3008 9953
TIME...MOT...LOC 0430Z 291DEG 25KT 3018 9960
$$
TXC265-130445-
/O.CON.KEWX.SV.W.0034.000000T0000Z-210413T0445Z/
Kerr TX-
1131 PM CDT Mon Apr 12 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1145 PM CDT
FOR NORTHWESTERN KERR COUNTY...
At 1130 PM CDT, a severe thunderstorm was located 8 miles northwest
of Kerr Wildlife Management Area, or 23 miles southeast of Junction,
moving east at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
I-10 Near The Kimble-Kerr County Line and The Intersection Of I-10
And Us 290.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3021 9974 3029 9970 3029 9946 3008 9953
TIME...MOT...LOC 0430Z 291DEG 25KT 3018 9960
HAIL...1.00IN
WIND...60MPH
$$
YBThe office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 12, 7:00 PM CDT | Severe Thunderstorm Warning | EWX | Llano | 60 min |
| Apr 12, 7:53 PM CDT | Severe Thunderstorm Warning | EWX | Burnet, Llano | 33 min |
| Apr 12, 9:58 PM CDT | Special Weather Statement | EWX | Edwards | 47 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.