An upper-level trough moved across northern Mexico and into West Texas, generating thunderstorms along and ahead of a dryline within a region of steep lapse rates and high instability. Isolated thunderstorms began forming east of the dryline around 1500CDT, including a long-tracked supercell which produced a brief tornado, strong winds, and a swath of large to very large hail from the Del Rio…
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS EWX wrote it up.
An upper-level trough moved across northern Mexico and into West Texas, generating thunderstorms along and ahead of a dryline within a region of steep lapse rates and high instability. Isolated thunderstorms began forming east of the dryline around 1500CDT, including a long-tracked supercell which produced a brief tornado, strong winds, and a swath of large to very large hail from the Del Rio area to the Hill Country. A line of thunderstorms formed along the dryline over Val Verde County after 1900CDT which tracked across the southern Edwards Plateau and Hill Country through the evening, producing some strong winds before weakening near the I-35 corridor.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Austin/San Antonio, TX wrote its last area forecast discussion before the first event at Mar 10, 2:24 PM CST, 1 hour 29 minutes earlier. Its key messages:
Area Forecast Discussion...UPDATED National Weather Service Austin/San Antonio TX 324 PM CDT Tue Mar 10 2026 ...New UPDATE... .KEY MESSAGES... - There is a level 3 of 5 risk for severe thunderstorms over the southern Edwards Plateau into western Hill Country late this afternoon into tonight; all severe hazards are possible. - The severe weather risk decreases to level 1 to 2 farther east towards the I-35 corridor tonight; main severe hazards will be large hail and damaging winds. - There is a level 1 to 2 risk for locally heavy rainfall and isolated flash flooding across the southern Edwards Plateau, Hill Country and into the northern I-35 corridor through Wednesday morning. - Dry weather pattern Thursday through the rest of the period; Slightly cooler Thursday behind Pacific front then warmer through the weekend. .SHORT TERM... (Tonight through Wednesday night) Issued at 120 PM CDT Tue Mar 10 2026 The upper low will be moving over western Texas late this afternoon and moving across the region overnight into Wednesday. Deep moisture ahead of the dryline west of our area will keep rain chances across most of South Central Texas today excluding the coastal plains. Thunderstorms may develop over the northern I-35 corridor early this afternoon, but capping would keep any activity isolated with most models keeping the cap in place. That said, severe weather would be possible with any isolated thunderstorm during this time with all hazards possible. The bulk of activity is still expected to begin over West Texas into Val Verde County towards late afternoon and continue into the overnight hours. To note, this is a bit sooner than previous forecasts for initial development in the west. All modes of severe weather are in play later this afternoon and evening with an environment favorable for very large hail greater than 2 inches, damaging winds up to 75 mph and even some tornadoes. Storms will initially be supercellular, then form into a line along the Pacific cold front moving west to east across the CWA. Low level parameters remain favorable for tornado risk through late tonight especially if any cells remain discrete ahead of the main line. Even when storms form into a line and strong wind potential increases, brief tornadoes cannot be ruled out mainly over the southern Edwards Plateau and Hill Country. As storms continue to move east late tonight, weakening instability may diminish severe thunderstorm intensity as they approach the I-35 corridor sometime near or after midnight. Backtracking slightly to talk about heavy rain, the level 2 to 4 risk for excessive rainfall remains over the southern Edwards Plateau but has been expanded further east into all of the Hill Country and portions of the northern I-35 corridor. Heavy downpours will accompany any storms today into tonight. Guidance has been consistent with heavy rain over the southern Edwards Plateau tonight with HREF guidance indicating local amounts from 2 to 4 inches which may lead to flash flooding over this area. We will have to monitor how storms trend tonight, but overall as storm intensity decreases late tonight and early Wednesday morning the heavy rain threat will also decrease. Rain amounts will vary across the area with perhaps some locations in the Rio Grande Plains missing out entirely on rain. The upper low deepens slightly as it moves over South Central Texas Wednesday morning and is slightly slower to exit the area. Rain chances linger over the I-35 corridor and coastal plains tomorrow morning, with wrap around showers and thunderstorms over portions of the northern I-35 corridor and coastal plains into the afternoon. A few storms could become strong to marginally severe tomorrow with large hail and damaging wind gusts the main hazards. Dry conditions are expected by Wednesday evening bringing the end of rain chances to our area for the rest of the short and long term forecast. && .UPDATE... Issued at 318 PM CDT Tue Mar 10 2026 We have issued a Tornado Watch in collaboration with SPC for Val Verde County and portions of the southern Edwards Plateau through 10 PM CDT. All hazards possible including large to very large hail, isolated tornadoes and damaging wind gusts of 60 mph and up to 80 mph. && .SHORT TERM... (Tonight through Wednesday night) Issued at 120 PM CDT Tue Mar 10 2026 The upper low will be moving over western Texas late this afternoon and moving across the region overnight into Wednesday. Deep moisture ahead of the dryline west of our area will keep rain chances across most of South Central Texas today excluding the coastal plains. Thunderstorms may develop over the northern I-35 corridor early this afternoon, but capping would keep any activity isolated with most models keeping the cap in place. That said, severe weather would be possible with any isolated thunderstorm during this time with all hazards possible. The bulk of activity is still expected to begin over West Texas into Val Verde County towards late afternoon and continue into the overnight hours. To note, this is a bit sooner than previous forecasts for initial development in the west. All modes of severe weather are in play later this afternoon and evening with an environment favorable for very large hail greater than 2 inches, damaging winds up to 75 mph and even some tornadoes. Storms will initially be supercellular, then form into a line along the Pacific cold front moving west to east across the CWA. Low level parameters remain favorable for tornado risk through late tonight especially if any cells remain discrete ahead of the main line. Even when storms form into a line and strong wind potential increases, brief tornadoes cannot be ruled out mainly over the southern Edwards Plateau and Hill Country. As storms continue to move east late tonight, weakening instability may diminish severe thunderstorm intensity as they approach the I-35 corridor sometime near or after midnight. Backtracking slightly to talk about heavy rain, the level 2 to 4 risk for excessive rainfall remains over the southern Edwards Plateau but has been expanded further east into all of the Hill Country and portions of the northern I-35 corridor. Heavy downpours will accompany any storms today into tonight. Guidance has been consistent with heavy rain over the southern Edwards Plateau tonight with HREF guidance indicating local amounts from 2 to 4 inches which may lead to flash flooding over this area. We will have to monitor how storms trend tonight, but overall as storm intensity decreases late tonight and early Wednesday morning the heavy rain threat will also decrease. Rain amounts will vary across the area with perhaps some locations in the Rio Grande Plains missing out entirely on rain. The upper low deepens slightly as it moves over South Central Texas Wednesday morning and is slightly slower to exit the area. Rain chances linger over the I-35 corridor and coastal plains tomorrow morning, with wrap around showers and thunderstorms over portions of the northern I-35 corridor and coastal plains into the afternoon. A few storms could become strong to marginally severe tomorrow with large hail and damaging wind gusts the main hazards. Dry conditions are expected by Wednesday evening bringing the end of rain chances to our area for the rest of the short and long term forecast. && .LONG TERM... (Thursday through next Tuesday) Issued at 120 PM CDT Tue Mar 10 2026 Dry weather is expected for the long term period. Cooler weather is expected Thursday with another day by day warming trend through the weekend. The warmest day of the week is forecast Sunday but will need to watch the timing of the next cold front which is expected to move across the area Sunday night. A big cool down is expected for the start of next week bringing temperatures closer to seasonable levels for mid-March. && .AVIATION... (18Z TAFS) Issued at 120 PM CDT Tue Mar 10 2026 Low clouds continue to lift and scatter, with VFR expected to return along the I-35 corridor by 19Z. Will continue to monitor convective trends this afternoon for some TSRA along I-35 near KAUS. Current data tends to favor areas west/north of Austin for TSRA, so we will not mention any convection in the forecast through this afternoon. Convective trends will increase this evening and into the overnight hours, with DRT likely seeing the first round of TSRA late this afternoon and evening. The I-35 sites can expect a later arrival and only minor changes have been made to the timing of PROB30 groups. We did opt to increase to a TEMPO group for KAUS in the 10-14Z period. Once the line of convection clears to the east, KDRT, KSAT and KSSF should remain free of precipitation. Will add VCSH to KAUS after 21Z as an upper low in the vicinity along with daytime heating could allow for some more convection Wednesday afternoon. && .PRELIMINARY POINT TEMPS/POPS... Austin Camp Mabry 64 82 48 69 / 80 40 10 0 Austin Bergstrom Intl Airport 63 82 46 68 / 70 50 10 0 New Braunfels Muni Airport 62 83 48 69 / 70 50 10 0 Burnet Muni Airport 60 79 45 67 / 90 30 10 0 Del Rio Intl Airport 59 87 52 74 / 80 0 0 0 Georgetown Muni Airport 62 79 45 67 / 80 40 10 0 Hondo Muni Airport 60 83 46 72 / 90 20 0 0 San Marcos Muni Airport 62 83 47 70 / 70 50 10 0 La Grange - Fayette Regional 68 81 49 68 / 50 70 20 0 San Antonio Intl Airport 64 83 50 70 / 80 30 0 0 Stinson Muni Airport 65 84 51 71 / 70 30 0 0 && .EWX WATCHES/WARNINGS/ADVISORIES... None. && SHORT TERM...17 LONG TERM....17 AVIATION...Platt
Special Weather Statement
National Weather Service Austin/San Antonio TX
416 PM CDT Tue Mar 10 2026
TXZ183-102200-
Val Verde TX-
416 PM CDT Tue Mar 10 2026
...A strong thunderstorm will impact portions of southeastern Val
Verde County through 500 PM CDT...
At 416 PM CDT, Doppler radar was tracking a strong thunderstorm 8
miles southwest of Cienegas Terrace, or 12 miles west of Del Rio,
moving northeast at 20 mph.
HAZARD...Wind gusts up to 50 mph and penny size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Del Rio, Lake View, Amistad Village, Black Brush Point, Diablo East,
Cienegas Terrace, Governors Landing, Long Point, Devils Shores,
Pafford Crossing, 277 South Boat Ramp, 277 North Campground, San
Pedro Canyon, Rough Canyon Recreation Area, Spur 406 Campground, Rock
Quarry Campground, Salem Point, Lake Ridge Ranch, and Devils River
State Nat Area Big Satan.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
A Tornado Watch remains in effect until 1000 PM CDT for south central
Texas.
&&
LAT...LON 2971 10107 2956 10071 2932 10091 2933 10094
2935 10095 2935 10097 2937 10101 2939 10102
2944 10106 2946 10106 2947 10109 2947 10111
2948 10114
TIME...MOT...LOC 2116Z 203DEG 18KT 2931 10108
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH
62The national radar mosaic for the moment the first event began.
10 hail, 3 thunderstorm wind, 1 tornado. Local standard time, as filed.
A thunderstorm produced wind gusts measured at 64 kts by the ASOS at Del Rio International Airport.
A thunderstorm produced up to golf ball sized hail in Del Rio.
A brief tornado occurred over open country north of US-90 as observed and photographed by storm spotters along US-90. The tornado appears to have remained over open country with no damage reported. With no apparent damage, we could not determine a path length or width.
Texas Parks and Wildlife reported quarter sized hail at Kickapoo Cavern State Park.
A COOP observer estimated up to quarter sized hail from a thunderstorm in southeastern Edwards County.
A thunderstorm produced wind gusts measured at 57 kts by mesonet station EA002 near Montell.
A thunderstorm produced hail up to grapefruit size south of Camp Wood.
A thunderstorm produced up to grapefruit sized hail near Leakey.
A thunderstorm produced up to baseball ball sized hail in western Bandera County.
Broadcast media reported hail up to golf ball size near Camp Verde.
A thunderstorm produced up to quarter sized hail in Del Rio.
A thunderstorm produced up to lime sized hail in Comfort.
A thunderstorm produced hail up to near 1.25 inches in diameter in the Val Verde Park area.
A thunderstorm produced wind gusts measured at 56 kts by the AWOS at Llano Municipal airport.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2026Every state in 2026This day in weather historyThe tornado archive for Texas, 2026Warnings in Texas, March 2026
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1319771, 1319772, 1319774, 1319775, 1319776, 1319777, 1319778, 1319779, 1319780, 1319781, 1319782, 1319783, 1319784, 1319785.