A warm front moved through South Central Texas from the south and brought warm, moist air. An upper level low moved through the southwestern US bringing a Pacific cold front into Texas.
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.
A warm front moved through South Central Texas from the south and brought warm, moist air. An upper level low moved through the southwestern US bringing a Pacific cold front into Texas. Thunderstorms developed along this cold front and some of these storms produced large hail.
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 Jan 15, 3:05 PM CST, 1 hour 58 minutes earlier.
Area Forecast Discussion National Weather Service Austin/San Antonio TX 305 PM CST Sun Jan 15 2017 .SHORT TERM (Tonight through Monday Night)... Strong to severe convection is about to enter the western boundary of our forecast area, northwest of Del Rio. This convection is being generated by a strong shortwave trough, unstable Gulf air, and a slowly northward moving warm front. High resolution mesoscale models have been consistent in depicting a thin MCS with embedded supercell structures. The Texas Tech and NSSL WRFs have verified best so far with timing and linear mode, with recent HRRR runs showing a more broken line of supercells. Overall, prior forecasts are on track and we expect the line to sweep across the area, generally along and north of U.S. 90. The line should weaken with time, and reach the I-35 corridor around 05-06Z. While one or two brief tornadoes are possible, the main severe threats will be large hail and damaging winds. Rainfall will average 1/2 to 1 inch, although some locations in the Edwards Plateau, Hill Country, and Metro Austin could receive up to 2-3 inches by daybreak Monday. Showers and thunderstorms will linger on the coastal plains Monday, but rainfall amounts should be 1/4 inch or less. && .LONG TERM (Tuesday through Sunday)... Highly amplified and progressive flow will continue across the CONUS through the next 7-10 days. This will bring a progression of fairly sharp shortwave troughs through a general longwave trough over the Plains. The net result for our area will be a cold front bringing colder conditions Wednesday and Thursday, then back to above normal temperatures Friday through Sunday before another cold front. PoPs will be in the forecast through Friday, although rainfall should be light. Just beyond this forecast period is another strong front and the potential for strong convection, then a colder, drier period. && .PRELIMINARY POINT TEMPS/POPS... Austin Camp Mabry 61 71 51 57 49 / 80 40 30 60 50 Austin Bergstrom Intl Airport 62 71 52 58 49 / 80 40 30 60 50 New Braunfels Muni Airport 62 72 54 58 51 / 70 40 40 60 50 Burnet Muni Airport 55 69 46 55 46 / 90 10 20 50 50 Del Rio Intl Airport 50 72 51 60 50 / 60 0 - 40 30 Georgetown Muni Airport 58 69 48 56 47 / 90 30 30 50 50 Hondo Muni Airport 60 75 55 60 51 / 70 10 20 60 50 San Marcos Muni Airport 62 72 53 59 50 / 70 40 40 60 50 La Grange - Fayette Regional 66 72 57 61 53 / 70 60 50 50 50 San Antonio Intl Airport 62 74 55 60 52 / 70 20 30 60 50 Stinson Muni Airport 62 74 57 61 53 / 70 20 30 50 50 && .EWX WATCHES/WARNINGS/ADVISORIES... None. && Mesoscale/Aviation...24 Synoptic/Grids...26 Public Service/Data Collection...Williams
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 458 AM CST SUN JAN 15 2017 TXZ171>173-183>194-202>209-217>225-228-161100- 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- 458 AM CST SUN JAN 15 2017 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH-CENTRAL TEXAS.. .DAY ONE...TODAY AND TONIGHT. THERE IS A CHANCE FOR STRONG TO SEVERE THUNDERSTORMS THIS AFTERNOON AND TONIGHT. THE GREATEST THREAT FOR SEVERE STORMS WILL BE ALONG AND WEST OF I-35. DAMAGING WIND GUSTS...ISOLATED TORNADOES...AND LARGE HAIL WILL BE POSSIBLE. LOCALLY HEAVY RAIN IS ALSO POSSIBLE ACROSS THE HILL COUNTRY AND MAY CAUSE SOME FLOODING. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTERS SHOULD REPORT ANY SEVERE WEATHER AND EXCESSIVE RAINFALL AMOUNTS.
Special Weather Statement National Weather Service Austin/San Antonio TX 257 PM CST SUN JAN 15 2017 TXZ183-152145- Val Verde TX- 257 PM CST SUN JAN 15 2017 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN VAL VERDE COUNTY UNTIL 345 PM CST... At 255 PM CST, Doppler radar was tracking a strong thunderstorm 9 miles north of Pumpville, or 20 miles northwest of Langtry, moving northeast at 35 mph. Dime size hail and wind gusts to 50 mph will be possible with this storm. Locations impacted include... Pumpville, Pandale and Hackberry Crossing. 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 severe thunderstorm watch remains in effect until 1000 PM CST for south central Texas. LAT...LON 3029 10176 3029 10129 3017 10123 2987 10176 TIME...MOT...LOC 2055Z 239DEG 46KT 3007 10173 PLATT
Special Weather Statement
National Weather Service Austin/San Antonio TX
422 PM CST SUN JAN 15 2017
TXZ183-152300-
Val Verde TX-
422 PM CST SUN JAN 15 2017
...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL VAL VERDE COUNTY UNTIL
500 PM CST...
At 422 PM CST, Doppler radar was tracking a strong thunderstorm near
Seminole Canyon State Park, or near Comstock, moving northeast at 25
mph.
Nickel size hail and winds in excess of 40 mph will be possible with
this storm.
Locations impacted include...
Comstock and Seminole Canyon State Park.
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.
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 severe thunderstorm watch remains in effect until 1000 PM CST for
south central Texas.
LAT...LON 2995 10112 2974 10091 2953 10126 2957 10124
2962 10125 2963 10127 2958 10128 2957 10129
2958 10131 2961 10131 2965 10130 2966 10135
2965 10136 2969 10137
TIME...MOT...LOC 2222Z 234DEG 22KT 2966 10127Special Weather Statement National Weather Service Austin/San Antonio TX 442 PM CST SUN JAN 15 2017 TXZ183-152330- Val Verde TX- 442 PM CST SUN JAN 15 2017 ...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL VAL VERDE COUNTY UNTIL 530 PM CST... At 442 PM CST, Doppler radar was tracking a strong thunderstorm near Comstock, moving northeast at 30 mph. Nickel size hail and winds in excess of 40 mph will be possible with this storm. Locations impacted include... Comstock, Devils River State Natural Area and Pafford Crossing. 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. 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 severe thunderstorm watch remains in effect until 1000 PM CST for south central Texas. LAT...LON 2958 10114 2972 10122 3001 10086 2977 10071 TIME...MOT...LOC 2242Z 240DEG 27KT 2971 10109
The Laughlin AFB radar (KDFX), 72 km away, was scanning. The volume nearest the first event began at 23:02 UTC.
23 hail, 3 thunderstorm wind. Local standard time, as filed.
A Border Patrol agent reported a thunderstorm produced nickel to quarter size hail one mile south of the intersection of Highways 277 and 377.
A thunderstorm produced quarter to ping pong ball size hail that covered the road on Hwy 377 near FM2523.
A thunderstorm produced tennis ball size hail 17 miles SW of Rocksprings.
A thunderstorm produced quarter size hail near the intersection of Highways 83 and 41 near the Kerr/Real County line.
A thunderstorm produced quarter size hail east of Brackettville mainly south of Hwy 90.
A thunderstorm produced two inch hail that dented cars in Medina.
A thunderstorm produced 2.5 inch hail that broke a sky light in a house.
A thunderstorm produced wind gusts estimated at 70 mph that tore an awning off a convenience store near the intersection of Hwy 173 and Veterans Hwy in Kerrville.
A thunderstorm produced wind gusts estimated at 60 mph the knocked down some large tree limbs near the intersection of Schmidt Ln. and Ernst Rd. in Welfare.
A thunderstorm produced wind gusts estimated at 60 mph in Blanco.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2017Every state in 2017This day in weather historyWarnings in Texas, January 2017
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: 666961, 666964, 666965, 666967, 666969, 666970, 666971, 666972, 666973, 666975, 668560, 668561, 668562, 668563, 668564, 668565, 668566, 668567, 668568, 668569, 668570, 668571, 668572, 668573, 668574, 668575.