Alert archive / Texas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 125, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 15, 2021, 9:22 PM CDT for Val Verde County, Texas. It was in force for 38 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 15, 2021, 9:22 PM CDT (02:22 UTC)
- Expired
- May 15, 2021, 10:00 PM CDT
- In force
- 38 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Val Verde County, TX
The radar
The Laughlin AFB radar (KDFX), 138 km from the middle of the area, began a volume at 02:22 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 nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 2.4 hours before the alert went out and 86 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
- 1227 J/kg
- Mixed-layer CIN
- -98 J/kg
- Mixed-layer LCL
- 858 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 101 m²/s²
- 0-3 km storm-relative helicity
- 149 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 3.8
The text
As transmitted.
287
WUUS54 KEWX 160222
SVREWX
TXC465-160315-
/O.NEW.KEWX.SV.W.0125.210516T0222Z-210516T0315Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Austin/San Antonio TX
922 PM CDT Sat May 15 2021
The National Weather Service in Austin San Antonio has issued a
* Severe Thunderstorm Warning for...
Northwestern Val Verde County in south central Texas...
* Until 1015 PM CDT.
* At 922 PM CDT, severe thunderstorms were located along a line
extending from 10 miles southeast of Terrell County Gas Plant to
near Pumpville to 20 miles southeast of Dryden, moving east at 20
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...
Langtry, Shumla, Pumpville and Pandale.
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 these storms. 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 3028 10176 3029 10120 2984 10127 2971 10139
2975 10142 2977 10140 2975 10144 2979 10145
2979 10147 2976 10154 2981 10154 2980 10157
2977 10158 2978 10161 2976 10164 2977 10166
2976 10171 2978 10176
TIME...MOT...LOC 0222Z 289DEG 19KT 3026 10173 2997 10176 2980 10192
HAIL...1.00IN
WIND...60MPH
$$
RUNYEN2 follow-up statements
583
WWUS54 KEWX 160253
SVSEWX
Severe Weather Statement
National Weather Service Austin/San Antonio TX
953 PM CDT Sat May 15 2021
TXC465-160315-
/O.CON.KEWX.SV.W.0125.000000T0000Z-210516T0315Z/
Val Verde TX-
953 PM CDT Sat May 15 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM CDT
FOR NORTHWESTERN VAL VERDE COUNTY...
At 953 PM CDT, severe thunderstorms were located along a line
extending from near Pandale to 8 miles east of Pumpville to 8 miles
southwest of Langtry, moving east at 20 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Langtry, Shumla and Pandale.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 2978 10175 2995 10172 3028 10171 3029 10120
2984 10127 2971 10139 2975 10142 2977 10140
2975 10144 2979 10145 2979 10147 2976 10154
2981 10154 2980 10157 2977 10158 2978 10161
2976 10164 2977 10166 2976 10171
TIME...MOT...LOC 0253Z 288DEG 19KT 3022 10159 2992 10160 2974 10168
HAIL...0.75IN
WIND...60MPH
$$
RUNYEN020
WWUS54 KEWX 160300
SVSEWX
Severe Weather Statement
National Weather Service Austin/San Antonio TX
1000 PM CDT Sat May 15 2021
TXC465-160309-
/O.CAN.KEWX.SV.W.0125.000000T0000Z-210516T0315Z/
Val Verde TX-
1000 PM CDT Sat May 15 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN VAL VERDE COUNTY
IS CANCELLED...
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning has been cancelled. However small hail and
gusty winds are still possible with these thunderstorms.
LAT...LON 2978 10175 2995 10172 3028 10171 3029 10120
2984 10127 2971 10139 2975 10142 2977 10140
2975 10144 2979 10145 2979 10147 2976 10154
2981 10154 2980 10157 2977 10158 2978 10161
2976 10164 2977 10166 2976 10171
TIME...MOT...LOC 0258Z 289DEG 19KT 3021 10156 2991 10157 2973 10165
$$
RUNYENThe office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 15, 8:53 PM CDT | Special Weather Statement | EWX | Val Verde | 37 min |
| May 15, 9:01 PM CDT | Severe Thunderstorm Warning | EWX | Val Verde | 17 min |
| May 16, 5:39 AM CDT | Areal Flood Advisory | EWX | Frio, Zavala | 3 hr |
| May 16, 8:27 AM CDT | Areal Flood Advisory | EWX | Karnes | 3 hr |
| May 16, 11:09 AM CDT | Areal Flood Advisory | EWX | Hays, Travis | 3 hr |
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.