Alert archive / Texas / Flash Flood Warnings in 2026
Flash Flood Warning 35, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Jun 15, 2026, 12:55 AM CDT for Burnet County, Travis County, Williamson County, Texas. It was in force for 8 hr. 4 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, 12:55 AM CDT (05:55 UTC)
- Expired
- Jun 15, 2026, 8:30 AM CDT
- In force
- 8 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
- Damage threat
- Considerable
- Flood severity
- None
Counties Burnet County, TX, Travis County, TX, Williamson County, TX
The radar
The Ft Hood radar (KGRK), 63 km from the middle of the area, began a volume at 05:55 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, 3:00 AM CDT | FLASH FLOOD | 2 Ne Leander, TX | Leander Road (RM 2243) closed due to flooding. Several low water crossings across Williamson county closed. |
| Jun 15, 3:30 AM CDT | FLASH FLOOD | 4 Ssw Jollyville, TX | Numerous low water crossings closed Travis County to north and northwest of Austin; including the usual Spicewood road crossings. |
| Jun 15, 3:30 AM CDT | FLASH FLOOD | Marble Falls, TX | Several low water crossings closed in southern Burnet county near Marble Falls. |
| Jun 15, 7:02 AM CDT | FLASH FLOOD | 4 Ssw Jollyville, TX | Spicewood Springs Road impassable due to flood waters along with a large log blocking the road. |
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 4 storm reports to this flash flood warning; the first came 125 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
Fort Worth, TX (KFWD), launched 00:00Z, 5.9 hours before the alert went out and 265 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
- 64 J/kg
- Mixed-layer CIN
- -83 J/kg
- Mixed-layer LCL
- 757 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 12 m²/s²
- 0-3 km storm-relative helicity
- 50 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
103
WGUS54 KEWX 150555
FFWEWX
TXC053-453-491-151000-
/O.NEW.KEWX.FF.W.0035.260615T0555Z-260615T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Austin/San Antonio TX
1255 AM CDT Mon Jun 15 2026
The National Weather Service in Austin/San Antonio has issued a
* Flash Flood Warning for...
Southwestern Burnet County in south central Texas...
Northern Travis County in south central Texas...
Southwestern Williamson County in south central Texas...
* Until 500 AM CDT.
* At 1255 AM CDT, Doppler radar and automated rain gauges indicated
thunderstorms producing heavy rain across the warned area. Between
1 and 2 inches of rain have fallen. Additional rainfall amounts of
1 to 3 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 and automated gauges.
IMPACT...Life threatening flash flooding of creeks and streams,
urban areas, highways, streets and underpasses.
* Some locations that will experience flash flooding include...
Austin, Round Rock, Cedar Park, Georgetown, Pflugerville, Taylor,
Burnet, Marble Falls, Round Mountain, Anderson Mill, Serenada,
Windemere, Leander, Hutto, Lakeway, Manor, Lago Vista, Granite
Shoals, Horseshoe Bay and Hudson Bend.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 3071 9791 3071 9767 3062 9742 3031 9758
3036 9789 3042 9813 3043 9813 3043 9814
3046 9825 3046 9827 3048 9833 3074 9836
FLASH FLOOD...RADAR AND GAUGE INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
$$
MM3 follow-up statements
264
WGUS54 KEWX 150842
FFWEWX
TXC053-453-491-151200-
/O.EXT.KEWX.FF.W.0035.000000T0000Z-260615T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Austin/San Antonio TX
342 AM CDT Mon Jun 15 2026
The National Weather Service in Austin/San Antonio has extended the
* Flash Flood Warning for...
Southwestern Burnet County in south central Texas...
Northern Travis County in south central Texas...
Southwestern Williamson County in south central Texas...
* Until 700 AM CDT.
* At 342 AM CDT, Doppler radar and automated rain gauges indicated
thunderstorms producing heavy rain across the warned area. Between
2 and 3 inches of rain have fallen. Additional rainfall amounts of
1 to 2 inches are possible in the warned area. Flash flooding is
occurring and numerous low water crossings are closed in Travis
and southern Williamson County.
HAZARD...Life threatening flash flooding. Thunderstorms
producing flash flooding.
SOURCE...Radar and automated gauges.
IMPACT...Life threatening flash flooding of creeks and streams,
urban areas, highways, streets and underpasses.
* Some locations that will experience flash flooding include...
Austin, Round Rock, Cedar Park, Georgetown, Pflugerville, Taylor,
Burnet, Marble Falls, Round Mountain, Anderson Mill, Serenada,
Windemere, Leander, Hutto, Lakeway, Manor, Lago Vista, Granite
Shoals, Horseshoe Bay and Hudson Bend.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 3071 9791 3071 9767 3062 9742 3031 9758
3036 9789 3042 9813 3043 9813 3043 9814
3046 9825 3046 9827 3048 9833 3074 9836
FLASH FLOOD...RADAR AND GAUGE INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
$$
MM207
WGUS54 KEWX 151140
FFWEWX
TXC053-453-491-151400-
/O.EXT.KEWX.FF.W.0035.000000T0000Z-260615T1400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Austin/San Antonio TX
640 AM CDT Mon Jun 15 2026
The National Weather Service in Austin/San Antonio has extended the
* Flash Flood Warning for...
Southwestern Burnet County in south central Texas...
Northern Travis County in south central Texas...
Southwestern Williamson County in south central Texas...
* Until 900 AM CDT.
* At 640 AM CDT, Doppler radar and automated rain gauges indicated
thunderstorms producing heavy rain across the warned area. Between
2 and 5 inches of rain have fallen. Additional rainfall amounts up
to 1 inch 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 and automated gauges.
IMPACT...Life threatening flash flooding of creeks and streams,
urban areas, highways, streets and underpasses.
* Some locations that will experience flash flooding include...
Austin, Round Rock, Cedar Park, Georgetown, Pflugerville, Taylor,
Burnet, Marble Falls, Round Mountain, Anderson Mill, Serenada,
Windemere, Leander, Hutto, Lakeway, Manor, Lago Vista, Granite
Shoals, Horseshoe Bay and Hudson Bend.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Be aware of your surroundings and do not drive on flooded roads.
In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.
&&
LAT...LON 3071 9791 3071 9767 3062 9742 3031 9758
3036 9789 3042 9813 3043 9813 3043 9814
3046 9825 3046 9827 3048 9833 3074 9836
FLASH FLOOD...RADAR AND GAUGE INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
$$
MM271
WGUS74 KEWX 151330
FFSEWX
Flash Flood Statement
National Weather Service Austin/San Antonio TX
830 AM CDT Mon Jun 15 2026
TXC053-453-491-151340-
/O.CAN.KEWX.FF.W.0035.000000T0000Z-260615T1400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Burnet TX-Travis TX-Williamson TX-
830 AM CDT Mon Jun 15 2026
...FLASH FLOOD WARNING FOR SOUTHWESTERN BURNET, NORTHERN TRAVIS AND
SOUTHWESTERN WILLIAMSON COUNTIES HAS BEEN REPLACED WITH A FLOOD
ADVISORY...
&&
LAT...LON 3071 9791 3071 9767 3062 9742 3031 9758
3036 9789 3042 9813 3043 9813 3043 9814
3046 9825 3046 9827 3048 9833 3074 9836
$$
62What 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, 12:08 AM CDT, 47 minutes earlier. Its key messages:
- Flood Watch in place across South-Central Texas from this evening through Tuesday afternoon with pockets of heavy rainfall and high hourly rainfall rates expected at times.
- Monitoring additional rain and any flooding concerns along coastal plains Wednesday into Thursday as leftover spin from the tropical disturbance in Mexico lifts northeastward along the Texas coast.
- Additional scattered rain and storm potential from Friday through Saturday with energy approaching from the Texas panhandle.
- Elevated heat indices today and late week into the weekend.
Area forecast discussion, Jun 15, 12:08 AM CDT, 47 minutes before
Area Forecast Discussion National Weather Service Austin/San Antonio TX 1208 AM CDT Mon Jun 15 2026 ...New AVIATION... .KEY MESSAGES... - Flood Watch in place across South-Central Texas from this evening through Tuesday afternoon with pockets of heavy rainfall and high hourly rainfall rates expected at times. - Monitoring additional rain and any flooding concerns along coastal plains Wednesday into Thursday as leftover spin from the tropical disturbance in Mexico lifts northeastward along the Texas coast. - Additional scattered rain and storm potential from Friday through Saturday with energy approaching from the Texas panhandle. - Elevated heat indices today and late week into the weekend. && .SHORT TERM... (Tonight through Monday night) Issued at 1244 PM CDT Sun Jun 14 2026 Rich tropical moisture has moved into South-Central Texas with the influence from the tropical disturbance that has moved inland over Mexico. Precipitable water values are now around 2 inches for locations along the I-35 corridor and are expected to continue to increase into the 2.25 to 2.4 inch (at the 99+ percentile for this time of year) range later tonight through Monday. This afternoon should feature scattered rain showers and thunderstorms across the region with occasional heavier downpours producing around a quick half inch or more. Rain and thunderstorm coverage then increases tonight through Monday into Tuesday as a front sags southward into the region and acts as an additional catalyst for activity. This front slows and starts to stall out near or within the region. Our main concern and the reason for the issuance of the Flood Watch is where the mesoscale banding of heavier storms develop with higher rainfall rates (2-3+ inch per hour) and where these storms could move over the same locations repeatedly. Regional rainfall amounts are forecast to be in the 1 to 3 inch range with likely isolated pockets or narrow regions with 8+ inches. This is supported by the latest 12Z HREF and REFS LPMM guidance. Flash flooding along with responses in area rivers and creeks from runoff will be possible near and downstream of those bullseyes of higher totals. Avoid low water crossings and turn around, don't drown! Elevated heat indices remain this afternoon but daytime highs will not be as high Monday and Tuesday due to the cloud cover and the area rainfall. Along and behind the front, the winds would turn to the east-northeast for a time while the locations that primarily remain to the south of the front continues with south-southeast winds. && .LONG TERM... (Tuesday through next Sunday) Issued at 1244 PM CDT Sun Jun 14 2026 Rain chances late in the day on Tuesday into Tuesday night should shift towards the southeast to the coastal plains and the areas along the Texas coast. These rain chances hold through Wednesday into Thursday. This would be associated with the leftover spin in the mid-levels of the atmosphere from the disturbance meandering across Mexico, which then slowly lifts northeastward with time, generally paralleling near or along the Texas coast. This will be something to keep a close eye on as the rainfall gradient could become quite tight across our southeastern region, between areas with no to little rainfall and heavier totals. If that mid-level spin advances farther inland than forecast, then the rain chances would increase considerably farther west within our region with greater concern for heavy rainfall and additional flash flooding risk. If the current forecast holds, the daytime highs across our western and central zones rebound with returning of elevated to hazardous heat indices. Overnights stay very warm and humid. Scattered rain and storm chances are then forecast to spread over the region once more from Friday into Saturday with the possible influence from a mid-level disturbance and/or convective outflow across the southern Texas panhandle into the San Angelo and Big Country region. Some isolated heavier downpours could again be possible with this activity. With warm and humid conditions, heat indices could still remain elevated and hazardous through this period. && .AVIATION... (06Z TAFS) Issued at 1206 AM CDT Mon Jun 15 2026 A very active night ahead at area terminals. Opted to continue with the status quo, but to add prevailing TSRA at AUS through 09Z and introduce TEMPO groups instead of PROB30 groups at SAT and SSF through sunrise. Low confidence in afternoon storm coverage at this time as well as the evolution of storms for Monday night. && .PRELIMINARY POINT TEMPS/POPS... Austin Camp Mabry 83 74 87 74 / 90 40 60 10 Austin Bergstrom Intl Airport 83 74 86 74 / 90 50 60 10 New Braunfels Muni Airport 83 73 85 73 / 90 70 60 10 Burnet Muni Airport 80 71 86 72 / 90 30 30 0 Del Rio Intl Airport 87 73 91 74 / 80 30 20 0 Georgetown Muni Airport 82 72 86 73 / 90 30 50 10 Hondo Muni Airport 83 72 86 72 / 90 60 60 0 San Marcos Muni Airport 83 73 85 73 / 90 60 60 10 La Grange - Fayette Regional 83 74 84 74 / 80 70 80 10 San Antonio Intl Airport 84 74 85 74 / 90 70 70 10 Stinson Muni Airport 84 74 85 74 / 90 70 70 10 && .EWX WATCHES/WARNINGS/ADVISORIES... Flood Watch through Tuesday evening for TXZ171>173-183>194- 202>209-217>225-228. && SHORT TERM...62 LONG TERM....62 AVIATION...MMM
The 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, 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, 8:36 AM CDT | Flash Flood Warning | EWX | Maverick | 7 hr |
| 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.