Alert archive / Texas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 112, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 10, 2021, 6:17 PM CDT for Edwards County, Val Verde County, Texas. It was in force for 58 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
- May 10, 2021, 6:17 PM CDT (23:17 UTC)
- Expired
- May 10, 2021, 7:15 PM CDT
- In force
- 58 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
Counties Edwards County, TX, Val Verde County, TX
The radar
The Laughlin AFB radar (KDFX), 102 km from the middle of the area, began a volume at 23:21 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 |
|---|---|---|---|
| May 10, 1:48 PM CDT | Severe Thunderstorm Watch | SPC | 10 hr |
The nearest sounding before it
Del Rio, TX (KDRT), launched 12:00Z, 11.3 hours before the alert went out and 87 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
- 2989 J/kg
- Mixed-layer CIN
- -152 J/kg
- Mixed-layer LCL
- 828 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 151 m²/s²
- 0-3 km storm-relative helicity
- 205 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 4.7
The text
As transmitted.
238
WUUS54 KEWX 102317
SVREWX
TXC137-465-110015-
/O.NEW.KEWX.SV.W.0112.210510T2317Z-210511T0015Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Austin/San Antonio TX
617 PM CDT Mon May 10 2021
The National Weather Service in Austin San Antonio has issued a
* Severe Thunderstorm Warning for...
Northwestern Edwards County in south central Texas...
Northeastern Val Verde County in south central Texas...
* Until 715 PM CDT.
* At 617 PM CDT, a severe thunderstorm was located near Loma Alta,
moving northeast at 25 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Loma Alta, Vinegarone, Us-277 Near The Sutton-
Edwards County Line and Devils River State Nat Area Del Norte.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Large hail, damaging winds, and continuous cloud to ground lightning
are occurring with this storm. Move indoors immediately. Lightning is
one of nature's leading killers. Remember, if you can hear thunder,
you are close enough to be struck by lightning.
&&
LAT...LON 3029 10036 2987 10072 2992 10090 3029 10090
TIME...MOT...LOC 2317Z 206DEG 23KT 2999 10077
HAIL...1.25IN
WIND...60MPH
$$
BRADY2 follow-up statements
361
WWUS54 KEWX 102329
SVSEWX
Severe Weather Statement
National Weather Service Austin/San Antonio TX
629 PM CDT Mon May 10 2021
TXC137-465-110015-
/O.CON.KEWX.SV.W.0112.000000T0000Z-210511T0015Z/
Edwards TX-Val Verde TX-
629 PM CDT Mon May 10 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CDT
FOR NORTHWESTERN EDWARDS AND NORTHEASTERN VAL VERDE COUNTIES...
At 629 PM CDT, a severe thunderstorm was located 8 miles north of
Loma Alta, moving north at 20 mph.
HAZARD...Two inch hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect wind
damage to roofs, siding, and trees.
Locations impacted include...
Us-277 Near The Sutton-Edwards County Line.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This storm is producing large hail. SEEK SHELTER NOW inside a sturdy
structure and stay away from windows.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
&&
LAT...LON 2996 10064 2995 10090 3029 10090 3029 10036
TIME...MOT...LOC 2329Z 201DEG 19KT 3004 10075
HAIL...2.00IN
WIND...60MPH
$$
BRADY001 WWUS54 KEWX 102352 SVSEWX Severe Weather Statement National Weather Service Austin/San Antonio TX 652 PM CDT Mon May 10 2021 TXC137-465-110015- /O.CON.KEWX.SV.W.0112.000000T0000Z-210511T0015Z/ Edwards TX-Val Verde TX- 652 PM CDT Mon May 10 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CDT FOR NORTHWESTERN EDWARDS AND NORTHEASTERN VAL VERDE COUNTIES... At 651 PM CDT, a severe thunderstorm was located 15 miles north of Loma Alta, moving north at 20 mph. HAZARD...Half dollar size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. Locations impacted include... Us-277 Near The Sutton-Edwards County Line. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. Continuous cloud to ground lightning is occurring with this storm. Move indoors immediately. Lightning is one of nature's leading killers. Remember, if you can hear thunder, you are close enough to be struck by lightning. && LAT...LON 3008 10054 3007 10082 3029 10082 3029 10036 TIME...MOT...LOC 2351Z 196DEG 17KT 3014 10071 HAIL...1.25IN WIND...<50MPH $$ BRADY
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 7:08 PM CDT | Severe Thunderstorm Warning | EWX | Blanco, Gillespie, Llano | 67 min |
| May 9, 7:47 PM CDT | Severe Thunderstorm Warning | EWX | Blanco, Gillespie, Kendall | 58 min |
| May 9, 9:53 PM CDT | Special Weather Statement | EWX | Gillespie | 52 min |
| May 10, 3:19 PM CDT | Special Weather Statement | EWX | Real | 41 min |
| May 10, 3:44 PM CDT | Severe Thunderstorm Warning | EWX | Edwards, Real | 46 min |
| May 10, 4:21 PM CDT | Severe Thunderstorm Warning | EWX | Bandera, Kerr, Real | 37 min |
| May 10, 5:56 PM CDT | Special Weather Statement | EWX | Edwards | 49 min |
| May 10, 6:00 PM CDT | Severe Thunderstorm Warning | EWX | Edwards, Val Verde | 60 min |
| May 10, 6:49 PM CDT | Special Weather Statement | EWX | Dimmit, Maverick | 41 min |
| May 10, 6:59 PM CDT | Severe Thunderstorm Warning | EWX | Dimmit, Maverick, Zavala | 61 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.