Thunderstorms developed along a dryline in West Texas and moved into South Central Texas. Some of these storms produced damaging wind gusts.
Every event with a place to put it. Tap one for its entry below.
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.
Thunderstorms developed along a dryline in West Texas and moved into South Central Texas. Some of these storms produced damaging wind gusts.
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 Apr 27, 5:32 PM CST, 2 hours 3 minutes earlier.
Area Forecast Discussion National Weather Service Austin/San Antonio TX 632 PM CDT Mon Apr 27 2020 .AVIATION... VFR skies continue this afternoon across South Central Texas, although high clouds from the anvils across West Texas and the Mexican mountains has begun to spread across the area. These storms have generally been staying rooted on the mountains and look to stay away from DRT. That said, have maintained VCTS through 03z as some models do develop storms around DRT through the evening. With moist southerly flow in place overnight low clouds will return tonight with MVFR for the I-35 terminals by 05z and IFR by 09z. DRT could also see a brief window of MVFR cigs beginning at 12z. All terminals will begin to improve between 16z and 18z. Some patchy fog is possible in the AM, but think that winds will stay up enough to prevent any significant drops in visibility. The most likely terminal to be impacted by any visibility restrictions will be SAT/SSF. VFR returns for Tuesday afternoon with more windy southeast winds. && .PREV DISCUSSION... /ISSUED 232 PM CDT Mon Apr 27 2020/ SHORT TERM (Tonight through Tuesday Night)... Southeast winds have strengthened in response to a tightening pressure gradient at the surface. Water vapor imagery shows a shortwave currently traversing Oklahoma but convection associated with this feature will stay well to the north of the area. Hi-res model guidance is suggesting that convection will fire along the dryline out west today around 20-22Z. Specifically over the Trans Pecos and Northern Mexico. This activity could become strong to severe given ~3500+ J/kg MUCAPE and efficient boundary layer heating leading to steep lapse rates. Only limiting factor will be a cap that is currently in place. Model soundings project that this cap will be almost completely be eroded by peak heating today. Throughout the evening hours, look for this activity to work it's way into Val Verde county. If a strong to severe storm were to make it, would most likely be isolated in nature with the main threats being strong winds and large hail. Consensus among the hi-res guidance is that these storms will be on the downward trend as they make their way into our region. A few of the members continue this convection over the Hill Country and as far as Bexar County. Given that these are outliers, left mention of precip for those areas. Will need to monitor future trends once models initialize with whatever ends up firing out west. With the continued return of moisture, fog development is possible but mostly for the interior Hill Country tonight. Dewpoints will be plenty moist but winds remaining near 10 knots overnight will impede any widespread fog development. Very warm and muggy night in store for South Central Texas with overnight lows running 10+ degrees above normal in most places. Mostly cloudy skies to start off Tuesday and will warm up to upper 80s to low 90s for most of the area and the mid 90s along the Rio Grande. Skies will gradually clear from west to east throughout the day. Some low POPs in for eastern areas with the possibility of some streamer showers. This activity could be more widespread than currently indicated in the forecast from sufficient daytime heating and a moist airmass in place but current guidance suggests eastern areas have the better chance. LONG TERM (Wednesday through Monday)... An upper level trough will bring a cold front through South Central Texas Wednesday. The front will be near our northern border at the start of this period Wednesday morning. There will be convection along the front moving into the eastern half of our CWA. SPC has included part of our area in the Marginal to Enhanced risk areas. The Marginal risk will be east of a line from Kerrville to San Antonio to Karnes City. The Slight risk will be east of a line from Llano to Kyle to Schulenburg. The Enhanced risk will be over the extreme northern parts of Burnet and Williamson Counties. Model soundings show steep mid-level lapse rates, with CAPE values approaching 2000 j/kg, and deep layer wind shear near 40 kts. This will make for strong to severe storms with damaging wind gusts and large hail the most likely threats. The front should be through the CWA by around noon and convection should end quickly once the front is through. After this front moves through dry weather will settle over the region. Temperatures will warm through the end of the week and stay high through the end of the forecast. By Saturday highs will be in the 90s across most of the CWA with some triple digits over the Rio Grande Plains. Temperatures will stay at about that level through Monday. && .PRELIMINARY POINT TEMPS/POPS... Austin Camp Mabry 88 70 88 69 82 / 0 10 10 30 20 Austin Bergstrom Intl Airport 88 70 87 68 83 / 0 10 10 30 30 New Braunfels Muni Airport 88 70 88 68 84 / 0 10 10 20 20 Burnet Muni Airport 85 68 86 66 81 / 0 10 10 30 10 Del Rio Intl Airport 92 70 94 69 91 / 20 20 - - 10 Georgetown Muni Airport 87 70 86 67 81 / 0 10 10 40 20 Hondo Muni Airport 91 71 91 68 89 / 0 10 10 10 10 San Marcos Muni Airport 88 70 88 67 84 / 0 10 10 30 20 La Grange - Fayette Regional 88 71 86 69 85 / 0 10 20 40 40 San Antonio Intl Airport 89 71 89 69 86 / 0 10 10 20 20 Stinson Muni Airport 89 72 90 69 86 / 0 10 10 20 20 && .EWX WATCHES/WARNINGS/ADVISORIES... None. && Short-Term/Aviation...Treadway Long-Term...05
Hazardous Weather Outlook National Weather Service Austin/San Antonio TX 350 AM CDT Mon Apr 27 2020 TXZ171>173-183>194-202>209-217>225-228-281000- Llano-Burnet-Williamson-Val Verde-Edwards-Real-Kerr-Bandera- Gillespie-Kendall-Blanco-Hays-Travis-Bastrop-Lee-Kinney-Uvalde- Medina-Bexar-Comal-Guadalupe-Caldwell-Fayette-Maverick-Zavala- Frio-Atascosa-Wilson-Karnes-Gonzales-De Witt-Lavaca-Dimmit- 350 AM CDT Mon Apr 27 2020 This Hazardous Weather Outlook is for South-Central Texas.. .DAY ONE...Today And Tonight. One or two strong to severe thunderstorms are possible across Val Verde county this evening. Damaging winds and hail are the main threats. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. A few strong to severe thunderstorms are possible along and northeast of a Kerrville to San Antonio to Cuero line Tuesday night into Wednesday morning. Large hail and damaging winds are the main threats. Otherwise, no hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated.
Special Weather Statement
National Weather Service Austin/San Antonio TX
738 PM CDT Mon Apr 27 2020
TXZ183-280130-
Val Verde TX-
738 PM CDT Mon Apr 27 2020
...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL VAL VERDE COUNTY UNTIL
830 PM CDT...
At 737 PM CDT, Doppler radar was tracking a strong thunderstorm over
Shumla, or 10 miles east of Langtry, moving east at 40 mph.
Penny size hail and winds in excess of 40 mph will be possible with
this storm.
Locations impacted include...
Comstock, Lake View, Amistad Village, Black Brush Point, Amistad
Acres, Seminole Canyon State Park, Shumla, Box Canyon, Diablo East,
Long Point, Governors Landing, Devils Shores, Pafford Crossing, Pecos
River Boat Ramp, San Pedro Canyon, Rough Canyon Recreation Area,
Spur 406 Campground, Rock Quarry Campground, Salem Point, and Devils
River State Nat Area Big Satan.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
&&
LAT...LON 2990 10144 2979 10084 2940 10096 2955 10125
2958 10124 2963 10126 2962 10128 2958 10128
2958 10131 2965 10130 2966 10135 2965 10136
2970 10137 2975 10142 2977 10140 2975 10144
2979 10146 2978 10149
TIME...MOT...LOC 0037Z 286DEG 34KT 2976 10140
BFSpecial Weather Statement
National Weather Service Austin/San Antonio TX
826 PM CDT Mon Apr 27 2020
TXZ183-184-202-280215-
Kinney TX-Val Verde TX-Edwards TX-
826 PM CDT Mon Apr 27 2020
...SIGNIFICANT WEATHER ADVISORY FOR WESTERN KINNEY...SOUTHWESTERN
EDWARDS AND SOUTHEASTERN VAL VERDE COUNTIES UNTIL 915 PM CDT...
At 825 PM CDT, Doppler radar was tracking a strong thunderstorm near
Governors Landing, or 13 miles southeast of Comstock, moving
southeast at 35 mph.
Penny size hail and wind gusts of 50 to 55 mph will be possible with
this storm.
Locations impacted include...
Del Rio, Lake View, Laughlin AFB, Alamo Village, Carta Valley,
Cienegas Terrace, Amistad Village, Black Brush Point, Amanda, Val
Verde Park, Standart, Diablo East, Long Point, Governors Landing,
Kickapoo Cavern State Park, 277 South Boat Ramp, 277 North
Campground, Rough Canyon Recreation Area, Spur 406 Campground and
Rock Quarry Campground.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
&&
LAT...LON 2986 10091 2977 10030 2938 10039 2911 10069
2917 10078 2920 10077 2926 10081 2928 10087
2931 10089 2933 10094 2935 10095 2936 10100
2944 10106 2946 10106 2947 10115 2949 10116
TIME...MOT...LOC 0125Z 302DEG 30KT 2953 10104
MOThe Laughlin AFB radar (KDFX), 61 km away, was scanning. The volume nearest the first event began at 01:34 UTC.
8 thunderstorm wind, 1 lightning. Local standard time, as filed.
A thunderstorm produced wind gusts estimated at 70 mph that damaged the roof of a hotel on Veterans Blvd. in Del Rio.
A thunderstorm produced a measured 77 mph wind gust at the Del Rio International Airport.
A thunderstorm produced a measured 60 mph wind gust in Del Rio. The wind speed was recorded on a private weather station.
A thunderstorm produced wind gusts estimated at 60 mph that broke some one inch tree limbs off trees and blew some shingles off a house.
A thunderstorm produced wind gusts estimated at 70 mph that knocked down power poles near Salem Point on Lake Amistad.
A thunderstorm produced wind gusts estimated at 70 mph that knocked down a few trees, a large section of fence, and blew over a shed in Del Rio.
A thunderstorm produced a measured wind gust of 75 mph at Laughlin AFB.
A thunderstorm produced wind gusts estimated at 60 mph that knocked down a large tree limb in Fort Clark Springs.
Lightning from a thunderstorm started a fire that burned down an eight unit apartment building on Salado Creek Dr. in northern San Antonio.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2020Every state in 2020This day in weather historyWarnings in Texas, April 2020
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: 884758, 884763, 884764, 884759, 884760, 884761, 884765, 884762, 884773.