Alert archive / Texas / Flash Flood Warnings in 2026
Flash Flood Warning 46, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Jun 15, 2026, 8:36 AM CDT for Maverick County, Texas. It was in force for 7 hr. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jun 15, 2026, 8:36 AM CDT (13:36 UTC)
- Expired
- Jun 15, 2026, 4:00 PM CDT
- In force
- 7 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
- Damage threat
- Considerable
- Flood severity
- None
County Maverick County, TX
The radar
The Laughlin AFB radar (KDFX), 94 km from the middle of the area, began a volume at 13:36 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 15, 11:20 AM CDT | FLASH FLOOD | 2 Nnw El Indio, TX | FM 1021 closed due to flooding via TxDOT; a video on social media indicates considerable flooding over a large section of the road. |
| Jun 15, 1:50 PM CDT | RAIN 8.85 | 4 W El Indio, TX | 8.85 inches of rain measured at the Cinco Ranch TWDB site (TW120) between 0605am and 0105 pm. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
Did it verify
Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this flash flood warning; the first came 164 minutes after it went out.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Del Rio, TX (KDRT), launched 12:00Z, 1.6 hours before the alert went out and 117 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
- 53 J/kg
- Mixed-layer CIN
- -128 J/kg
- Mixed-layer LCL
- 891 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- -53 m²/s²
- 0-3 km storm-relative helicity
- -58 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
433
WGUS54 KEWX 151336
FFWEWX
TXC323-151600-
/O.NEW.KEWX.FF.W.0046.260615T1336Z-260615T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Austin/San Antonio TX
836 AM CDT Mon Jun 15 2026
The National Weather Service in Austin/San Antonio has issued a
* Flash Flood Warning for...
Southeastern Maverick County in south central Texas...
* Until 1100 AM CDT.
* At 836 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 2 and 5 inches of rain
have fallen. Additional rainfall amounts of 1 to 2 inches are
possible in the warned area. Flash flooding is ongoing or expected
to begin shortly.
HAZARD...Life threatening flash flooding. Thunderstorms
producing flash flooding.
SOURCE...Radar.
IMPACT...Life threatening flash flooding of creeks and streams,
urban areas, highways, streets and underpasses.
* Some locations that will experience flash flooding include...
El Indio, Rosita and Farias Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Remain alert for flooding even in locations not receiving rain.
Arroyos, streams, and rivers can become raging killer currents in a
matter of minutes, even from distant rainfall.
&&
LAT...LON 2855 10041 2858 10040 2859 10042 2881 10011
2820 10011 2820 10021 2823 10022 2824 10026
2828 10029 2831 10029 2840 10035 2844 10034
2848 10037 2850 10033 2851 10039
FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
$$
622 follow-up statements
639
WGUS54 KEWX 151555
FFWEWX
TXC323-152100-
/O.EXT.KEWX.FF.W.0046.000000T0000Z-260615T2100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Austin/San Antonio TX
1055 AM CDT Mon Jun 15 2026
The National Weather Service in Austin/San Antonio has extended the
* Flash Flood Warning for...
Southeastern Maverick County in south central Texas...
* Until 400 PM CDT.
* At 1055 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 8 and 12 inches of rain
have fallen. The expected rainfall rate is 1 to 3 inches in 1 hour
continues. Additional rainfall amounts of 2 to 6 inches are
possible in the warned area. Flash flooding is likely ongoing.
HAZARD...Life threatening flash flooding. Thunderstorms
producing flash flooding.
SOURCE...Radar.
IMPACT...Life threatening flash flooding of creeks and streams,
urban areas, highways, streets and underpasses.
* Some locations that will experience flash flooding include...
El Indio, Rosita and Farias Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to higher ground now. Act quickly to protect your life.
Stay away or be swept away. River banks and culverts can become
unstable and unsafe.
&&
LAT...LON 2855 10041 2858 10040 2859 10042 2881 10011
2820 10011 2820 10021 2823 10022 2824 10026
2828 10029 2831 10029 2840 10035 2844 10034
2848 10037 2850 10033 2851 10039
FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
EXPECTED RAINFALL RATE...1-3 INCHES IN 1 HOUR
$$
62573
WGUS74 KEWX 152055
FFSEWX
Flash Flood Statement
National Weather Service Austin/San Antonio TX
355 PM CDT Mon Jun 15 2026
TXC323-152105-
/O.EXP.KEWX.FF.W.0046.000000T0000Z-260615T2100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Maverick TX-
355 PM CDT Mon Jun 15 2026
...FLASH FLOOD WARNING WILL EXPIRE AT 4 PM CDT THIS AFTERNOON FOR
SOUTHEASTERN MAVERICK COUNTY...
...FLOOD ADVISORY NOW IN EFFECT...
The heavy rain has ended. This warning has been replaced with a
Flood Advisory. Please continue to heed remaining road closures.
A Flood Watch remains in effect until 700 PM CDT Tuesday for a
portion of south central Texas.
&&
LAT...LON 2855 10041 2858 10040 2859 10042 2881 10011
2820 10011 2820 10021 2823 10022 2824 10026
2828 10029 2831 10029 2840 10035 2844 10034
2848 10037 2850 10033 2851 10039
$$
05What forecasters said that day
The local office's own words before this flash flood warning went out, 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 this flash flood warning went out at Jun 15, 6:52 AM CDT, 1 hour 44 minutes earlier. Its key messages:
- Flood Watch remains in effect through Tuesday evening with pockets of heavy rainfall and high hourly rainfall rates expected at times.
- Monitoring any lingering spin associated with the tropical disturbance over Mexico through mid to late week as well as a disturbance over Texas panhandle Friday into Saturday that could continue our rain chances
- Warm and humid conditions persist with elevated heat indices during the second half of next week
Area forecast discussion, Jun 15, 6:52 AM CDT, 1 hour 44 minutes before
Area Forecast Discussion National Weather Service Austin/San Antonio TX 652 AM CDT Mon Jun 15 2026 ...New AVIATION... .KEY MESSAGES... - Flood Watch remains in effect through Tuesday evening with pockets of heavy rainfall and high hourly rainfall rates expected at times. - Monitoring any lingering spin associated with the tropical disturbance over Mexico through mid to late week as well as a disturbance over Texas panhandle Friday into Saturday that could continue our rain chances - Warm and humid conditions persist with elevated heat indices during the second half of next week && .SHORT TERM... (Today through Tuesday) Issued at 133 AM CDT Mon Jun 15 2026 As the front continues trekking southward we will see chances for showers and thunderstorms continue to increase overnight out ahead of it. Eventually this front looks to stall somewhere either just north of our region or within it. Still lots of uncertainty on where and when it stalls out. Wherever it does, we could see showers and storms continue to develop along it as abundant tropical moisture from the disturbance now located in Mexico creeps closer. Currently PWATs are in the 2 to 2.4in range across most of our area so the moisture is certainly there. Any thunderstorms that can tap into this moisture will be capable of producing torrential downpours with 2-3 inch rates per hour being possible. With the front stalling and rich tropical moisture present we could see some hefty rainfall totals overnight and through the day Monday as steering for storms will be very weak leading to possibility of flash flooding. Hence we went ahead and issued a Flood Watch earlier that remains in effect now through Tuesday evening as soils remain saturated from the previous few weeks. Additionally, we could see widespread rainfall amounts of 1-3 inches with some areas that see repeated rounds of heavy rainfall receiving up to and above 8 inches. Flash flooding along with responses in area rivers and creeks from runoff will be possible near and downstream of any of those bullseyes of higher totals. Avoid low water crossings and turn around, don't drown! Moisture will continue to be plentiful with recent Hi-Res guidance continuing to show pockets of heavier rainfall totals continuing into Tuesday somewhere across our CWA(every model has a different solution) Eventually rain chances should begin to shift further south and east through the day as the front begins to move. Regarding temperatures Monday with numerous showers and storms likely we should see highs drop a bit with mid to upper 80s more likely and heat indices near the upper 90s to near 100 in any of the areas where some sun breaks out. However with the increased moisture it will still feel quite warm and downright muggy for many. TuesdaY could be a few degrees warmer depending on if we see more peaks of sunshine. Heat indices will once again be in the upper 90s to near 100. && .LONG TERM... (Tuesday night through Sunday) Issued at 133 AM CDT Mon Jun 15 2026 Abundant moisture remains across the area heading into Tuesday evening with most rain and storm chances sliding further southeastward across the Coastal Plains and the TX Coast. Rain chances look to continue at least for the Coastal Plains as leftover spin in the mid-levels of the atmosphere from the disturbance currently meandering across Mexico slowly lifts northeastward. However there still remains considerable uncertainty regarding this tropical disturbance and where its remains eventually end up during midweek. If it tracks closer to our area rain and storm chances would likely increase further westward through the week whereas a track more along or just off the TX Coast would keep chances mainly confined over our Coastal Plains areas. If the more inland scenario plays out then we could be looking at a significant increase for heavier rainfall and the flash flooding threat due to recent saturation over the prior days. However, if the track is more along the Coast then we would need to focus more on hazardous heat with higher heat indices likely across the west and central parts of our area. To complicate matters even further, several models continue indicating an upper level disturbance located within northwesterly flow aloft across the Texas panhandle that could make its way towards Central Texas sometime during the Friday into the Saturday timeframe. This would continue to aggravate soils and increase potential flooding concerns across the region as more showers and thunderstorms could occur as this disturbance tracks over us. Regarding temperatures, by midweek we should warm up again with highs in the 90s however it will still be humid as moisture continues to remain across the area especially with any showers and heavy rainfall that occurs from earlier in the week. Thus the prospects for heat remains albeit trending downward as more disturbances look to impact our area. It will still feel very warm however as abundant moisture sticks around. With highs in the low 90s we could still see heat indices anywhere from 100 to 109 degrees. Remember to continue to practice safe heat safety. && .AVIATION... (12Z TAFS) Issued at 646 AM CDT Mon Jun 15 2026 MVFR and IFR conditions are forecast to remain across the local terminals for most of the next 24 hour period. Heavy rainfall, reduced visibility, and cloud to ground lightning are anticipated throughout the day and night times as rounds of showers and storms affect South Central Texas. A northeast to east wind flow is forecast to dominate the local area. && .PRELIMINARY POINT TEMPS/POPS... Austin Camp Mabry 82 74 87 74 / 70 30 40 10 Austin Bergstrom Intl Airport 82 74 86 74 / 80 30 50 10 New Braunfels Muni Airport 83 73 85 73 / 80 40 50 10 Burnet Muni Airport 80 71 86 72 / 60 20 30 0 Del Rio Intl Airport 86 73 91 74 / 60 20 10 0 Georgetown Muni Airport 81 72 86 73 / 60 30 50 10 Hondo Muni Airport 83 72 86 72 / 80 40 40 0 San Marcos Muni Airport 82 73 85 73 / 80 40 50 10 La Grange - Fayette Regional 82 74 84 74 / 90 60 60 10 San Antonio Intl Airport 83 74 85 74 / 80 40 50 10 Stinson Muni Airport 84 74 85 74 / 80 50 50 10 && .EWX WATCHES/WARNINGS/ADVISORIES... Flood Watch through Tuesday evening for TXZ171>173-183>194- 202>209-217>225-228. && SHORT TERM...CJM LONG TERM....CJM AVIATION...17
In the hours before
Local storm report, Jun 15, 6:45 AM CDT, 1 hour 51 minutes before
Preliminary Local Storm Report
National Weather Service Austin/San Antonio TX
645 AM CDT Mon Jun 15 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0640 AM Flash Flood 1 NE Helotes 29.57N 98.68W
06/15/2026 Bexar TX Broadcast Media
Numerous stranded vehicles and water rescues
ongoing in NW side of San Antonio.
&&
MBLocal storm report, Jun 15, 6:59 AM CDT, 1 hour 37 minutes before
Preliminary Local Storm Report
National Weather Service Austin/San Antonio TX
659 AM CDT Mon Jun 15 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0655 AM Flash Flood San Antonio 29.43N 98.49W
06/15/2026 Bexar TX County Official
Above 35 low water crossings now closed due
to flooding across Bexar County and San
Antonio metro area.
&&
MBLocal storm report, Jun 15, 7:11 AM CDT, 1 hour 25 minutes before
Preliminary Local Storm Report
National Weather Service Austin/San Antonio TX
711 AM CDT Mon Jun 15 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0702 AM Flash Flood 4 SSW Jollyville 30.39N 97.78W
06/15/2026 Travis TX Broadcast Media
Spicewood Springs Road impassable due to
flood waters along with a large log blocking
the road.
&&
MBLocal storm report, Jun 15, 7:15 AM CDT, 1 hour 21 minutes before
Preliminary Local Storm Report
National Weather Service Austin/San Antonio TX
715 AM CDT Mon Jun 15 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0713 AM Flash Flood Round Mountain 30.43N 98.34W
06/15/2026 Blanco TX Emergency Mngr
Round Closures in Round Mountain on 962 E
and W.
&&
MBLocal storm report, Jun 15, 7:20 AM CDT, 1 hour 16 minutes before
Preliminary Local Storm Report
National Weather Service Austin/San Antonio TX
720 AM CDT Mon Jun 15 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0655 AM Flash Flood 5 S Sisterdale 29.91N 98.72W
06/15/2026 Kendall TX Fire Dept/Rescue
FM 1376 at Wasp Creek had pavement wash out
due to flooding. Road remains closed.
&&
MBLocal storm report, Jun 15, 8:36 AM CDT, 0 minutes before
Preliminary Local Storm Report
National Weather Service Austin/San Antonio TX
836 AM CDT Mon Jun 15 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0803 AM Flash Flood Bulverde 29.74N 98.45W
06/15/2026 Comal TX Emergency Mngr
Road closures reported at 29900 blk Bulverde
Ln near Indian Creek, Obst Road at Leroy
Scheel Rd near Cibolo Creek, and Old Bastrop
Rd at York Creek.
&&
HTThe office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 14, 8:27 PM CDT | Areal Flood Advisory | EWX | Val Verde | 3 hr |
| Jun 14, 9:22 PM CDT | Areal Flood Advisory | EWX | Burnet, Llano | 3 hr |
| Jun 14, 9:40 PM CDT | Flash Flood Warning | EWX | Llano | 3 hr |
| Jun 14, 9:50 PM CDT | Areal Flood Advisory | EWX | Edwards, Val Verde | 115 min |
| Jun 14, 9:57 PM CDT | Flash Flood Warning | EWX | Burnet | 3 hr |
| Jun 14, 10:49 PM CDT | Flash Flood Warning | EWX | Edwards, Val Verde | 4 hr |
| Jun 14, 11:19 PM CDT | Areal Flood Advisory | EWX | Gillespie | 9 min |
| Jun 14, 11:28 PM CDT | Flash Flood Warning | EWX | Gillespie | 5 hr |
| Jun 14, 11:35 PM CDT | Areal Flood Advisory | EWX | Gillespie, Llano | 3 hr |
| Jun 14, 11:42 PM CDT | Flash Flood Warning | EWX | Blanco, Burnet, Llano | 6 hr |
| Jun 14, 11:50 PM CDT | Areal Flood Advisory | EWX | Edwards, Kerr, Kinney, Real, Val Verde | 3 hr |
| Jun 15, 12:23 AM CDT | Areal Flood Advisory | EWX | Travis, Williamson | 3 hr |
| Jun 15, 12:55 AM CDT | Flash Flood Warning | EWX | Burnet, Travis, Williamson | 8 hr |
| Jun 15, 1:30 AM CDT | Areal Flood Advisory | EWX | Bandera, Bexar, Kendall, Medina | 20 min |
| Jun 15, 1:50 AM CDT | Flash Flood Warning | EWX | Bandera, Bexar, Kendall, Medina | 8 hr |
| Jun 15, 1:53 AM CDT | Areal Flood Advisory | EWX | Blanco, Hays, Travis | 27 min |
| Jun 15, 2:01 AM CDT | Areal Flood Advisory | EWX | Medina, Uvalde | 3 hr |
| Jun 15, 2:08 AM CDT | Flash Flood Warning | EWX | Bastrop, Lee, Travis, Williamson | 6 hr |
| Jun 15, 2:20 AM CDT | Flash Flood Warning | EWX | Blanco, Hays, Travis | 7 hr |
| Jun 15, 2:41 AM CDT | Areal Flood Advisory | EWX | Bandera, Kendall, Kerr | 3 hr |
| Jun 15, 3:08 AM CDT | Flash Flood Warning | EWX | Bandera, Medina, Real, Uvalde | 4 hr |
| Jun 15, 3:15 AM CDT | Flash Flood Warning | EWX | Blanco, Comal, Hays | 6 hr |
| Jun 15, 3:31 AM CDT | Flash Flood Warning | EWX | Bandera, Kerr | 5 hr |
| Jun 15, 4:04 AM CDT | Areal Flood Advisory | EWX | Gillespie, Kendall | 3 hr |
| Jun 15, 4:23 AM CDT | Flash Flood Warning | EWX | Bexar, Comal, Guadalupe, Hays | 4 hr |
| Jun 15, 4:24 AM CDT | River Flood Warning | EWX | Travis | 5 hr |
| Jun 15, 4:41 AM CDT | Areal Flood Advisory | EWX | Bastrop, Caldwell, Lee | 4 hr |
| Jun 15, 4:48 AM CDT | Flash Flood Warning | EWX | Kendall | 4 hr |
| Jun 15, 4:58 AM CDT | Flash Flood Warning | EWX | Maverick | 6 hr |
| Jun 15, 5:36 AM CDT | Flash Flood Warning | EWX | Bexar, Medina | 5 hr |
| Jun 15, 6:35 AM CDT | Areal Flood Advisory | EWX | Fayette, Gonzales, Guadalupe, Lavaca, Lee | 3 hr |
| Jun 15, 6:53 AM CDT | Areal Flood Advisory | EWX | Atascosa, Bexar, Guadalupe, Karnes, Wilson | 3 hr |
| Jun 15, 6:59 AM CDT | Areal Flood Advisory | EWX | Medina, Uvalde | 3 hr |
| Jun 15, 7:38 AM CDT | Areal Flood Advisory | EWX | Maverick | 58 min |
| Jun 15, 8:06 AM CDT | Areal Flood Advisory | EWX | Bastrop, Lee, Travis, Williamson | 114 min |
| Jun 15, 8:25 AM CDT | Areal Flood Advisory | EWX | Bexar, Comal, Guadalupe | 95 min |
| Jun 15, 8:28 AM CDT | River Flood Warning | EWX | Bexar | 19 hr |
| Jun 15, 8:30 AM CDT | Areal Flood Advisory | EWX | Burnet, Travis, Williamson | 60 min |
| Jun 15, 8:52 AM CDT | Areal Flood Advisory | EWX | Kendall | 3 hr |
| Jun 15, 8:57 AM CDT | Areal Flood Advisory | EWX | Bandera, Kerr | 78 min |
| Jun 15, 8:59 AM CDT | Areal Flood Advisory | EWX | Blanco, Comal, Hays | 91 min |
| Jun 15, 9:02 AM CDT | Areal Flood Advisory | EWX | Blanco, Hays, Travis | 88 min |
| Jun 15, 9:23 AM CDT | Areal Flood Advisory | EWX | Bandera, Bexar, Kendall, Medina | 2 hr |
| Jun 15, 9:50 AM CDT | River Flood Warning | EWX | Bexar | 24 hr |
| Jun 15, 9:53 AM CDT | River Flood Warning | EWX | Bexar, Wilson | 23 hr |
| Jun 15, 10:32 AM CDT | Areal Flood Advisory | EWX | Bexar, Medina | 73 min |
| Jun 15, 10:59 AM CDT | Areal Flood Advisory | EWX | Maverick | 3 hr |
| Jun 15, 3:01 PM CDT | River Flood Warning | EWX | Karnes, Wilson | 18 hr |
| Jun 15, 3:37 PM CDT | Areal Flood Advisory | EWX | Edwards, Kinney, Val Verde | 2 hr |
| Jun 15, 3:53 PM CDT | Areal Flood Advisory | EWX | Maverick | 83 min |
Nearby
Flash Flood Warnings in Texas, 2026Every flash flood warning in 2026
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.