Alert archive / Texas / Flash Flood Warnings in 2026

Flash Flood Warning 13, NWS Austin/San Antonio, TX

May 10, 2026Lee County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at May 10, 2026, 11:16 PM CDT for Lee County, Texas. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 10, 2026, 11:16 PM CDT (04:16 UTC)
Expired
May 11, 2026, 2:15 AM CDT
In force
3 hr
Issued by
NWS Austin/San Antonio, TX
Area
Storm-based polygon
Damage threat
Considerable
Flood severity
None

County Lee County, TX

The radar

The Ft Hood radar (KGRK), 79 km from the middle of the area, began a volume at 04:14 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.

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 4.3 hours before the alert went out and 289 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.

Skew-T log-pSkew-T log-p diagram, Fort Worth, TX at 00:00Z on 2026-05-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 199 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Fort Worth, TX at 00:00Z on 2026-05-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 151 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
199 J/kg
Mixed-layer CIN
-297 J/kg
Mixed-layer LCL
1024 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
151 m²/s²
0-3 km storm-relative helicity
194 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

Open this sounding in Storm Lab

The text

As transmitted.

964 
WGUS54 KEWX 110416
FFWEWX
TXC287-110715-
/O.NEW.KEWX.FF.W.0013.260511T0416Z-260511T0715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Austin/San Antonio TX
1116 PM CDT Sun May 10 2026

The National Weather Service in Austin/San Antonio has issued a

* Flash Flood Warning for...
  East Central Lee County in south central Texas...

* Until 215 AM CDT.

* At 1116 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 3 and 4.5 inches of 
  rain has fallen. The expected rainfall rate is 2 to 3 inches in 1 
  hour. 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...
  Lake Somerville State Park & Trailway and Loebau.

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.

Flooding is occurring or is imminent. It is important to know where 
you are relative to streams, rivers, or creeks which can become 
killers in heavy rains. Campers and hikers should avoid streams or 
creeks.

Please report observed flooding to local emergency services or law 
enforcement and request they pass this information to the National 
Weather Service when you can do so safely.

&&

LAT...LON 3027 9692 3034 9675 3033 9675 3032 9674
      3032 9673 3032 9672 3032 9669 3030 9666
      3030 9665 3030 9664 3029 9666 3028 9666
      3026 9668 3025 9669 3025 9671 3025 9672
      3024 9673 3023 9674 3021 9674 3021 9693

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
EXPECTED RAINFALL RATE...2-3 INCHES IN 1 HOUR

$$

CM
2 follow-up statements
040 
WGUS74 KEWX 110549
FFSEWX

Flash Flood Statement
National Weather Service Austin/San Antonio TX
1249 AM CDT Mon May 11 2026

TXC287-110715-
/O.CON.KEWX.FF.W.0013.000000T0000Z-260511T0715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lee TX-
1249 AM CDT Mon May 11 2026

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 215 AM CDT EARLY THIS 
MORNING FOR EAST CENTRAL LEE COUNTY...

At 1249 AM CDT, Doppler radar indicated earlier thunderstorms 
producing heavy rain across the warned area. Between 4 and 5 inches 
of rain have fallen near the Lake Somerville State Park. The 
expected rainfall rate is 0.5 inches in 1 hour. 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.

IMPACT...Life threatening flash flooding of creeks and streams,
         urban areas, highways, streets and underpasses.

Some locations that will experience flash flooding include...
  Lake Somerville State Park & Trailway and Loebau.

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.

Flooding is occurring or is imminent. It is important to know where 
you are relative to streams, rivers, or creeks which can become 
killers in heavy rains. Campers and hikers should avoid streams or 
creeks.

Please report observed flooding to local emergency services or law 
enforcement and request they pass this information to the National 
Weather Service when you can do so safely.

&&

LAT...LON 3027 9692 3034 9675 3033 9675 3032 9674
      3032 9673 3032 9672 3032 9669 3030 9666
      3030 9665 3030 9664 3029 9666 3028 9666
      3026 9668 3025 9669 3025 9671 3025 9672
      3024 9673 3023 9674 3021 9674 3021 9693

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
EXPECTED RAINFALL RATE...0.5 INCHES IN 1 HOUR

$$

CM
899 
WGUS74 KEWX 110710
FFSEWX

Flash Flood Statement
National Weather Service Austin/San Antonio TX
210 AM CDT Mon May 11 2026

TXC287-110720-
/O.EXP.KEWX.FF.W.0013.000000T0000Z-260511T0715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lee TX-
210 AM CDT Mon May 11 2026

...FLASH FLOOD WARNING WILL EXPIRE AT 215 AM CDT EARLY THIS MORNING 
FOR EAST CENTRAL LEE COUNTY...

The heavy rain has ended. Please continue to heed remaining road 
closures.

&&

LAT...LON 3027 9692 3034 9675 3033 9675 3032 9674
      3032 9673 3032 9672 3032 9669 3030 9666
      3030 9665 3030 9664 3029 9666 3028 9666
      3026 9668 3025 9669 3025 9671 3025 9672
      3024 9673 3023 9674 3021 9674 3021 9693

$$

CM

The office that day

Everything else NWS Austin/San Antonio, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 10, 7:28 PM CDTSevere Thunderstorm Warning Considerable damage threatEWXBlanco, Burnet, Llano62 min
May 10, 7:45 PM CDTSevere Thunderstorm WarningEWXEdwards, Kinney, Real, Uvalde60 min
May 10, 8:01 PM CDTSpecial Weather StatementEWXGillespie, Kerr, Real44 min
May 10, 8:04 PM CDTSpecial Weather StatementEWXBastrop41 min
May 10, 8:28 PM CDTSevere Thunderstorm Warning Considerable damage threatEWXBlanco, Burnet, Llano, Travis, Williamson62 min
May 10, 8:43 PM CDTSpecial Weather StatementEWXBlanco, Gillespie, Kendall, Kerr47 min
May 10, 8:49 PM CDTSevere Thunderstorm Warning Considerable damage threatEWXKinney, Maverick42 min
May 10, 8:50 PM CDTAreal Flood AdvisoryEWXBurnet, Llano3 hr
May 10, 8:53 PM CDTSpecial Weather StatementEWXBandera, Real, Uvalde52 min
May 10, 8:55 PM CDTSpecial Weather StatementEWXLee50 min
May 10, 9:02 PM CDTSpecial Weather StatementEWXWilliamson43 min
May 10, 9:17 PM CDTAreal Flood AdvisoryEWXBurnet, Travis, Williamson3 hr
May 10, 9:28 PM CDTSpecial Weather StatementEWXHays, Travis, Williamson47 min
May 10, 9:37 PM CDTSpecial Weather StatementEWXLee53 min
May 10, 9:44 PM CDTSpecial Weather StatementEWXBandera, Bexar, Comal, Frio, Kendall, Medina and 2 more46 min
May 10, 9:48 PM CDTSevere Thunderstorm WarningEWXBastrop, Lee, Travis, Williamson57 min
May 10, 10:04 PM CDTSevere Thunderstorm WarningEWXBastrop, Caldwell, Guadalupe, Hays, Travis56 min
May 10, 10:05 PM CDTSevere Thunderstorm Warning Considerable damage threatEWXAtascosa, Bexar, Frio, Medina55 min
May 10, 10:07 PM CDTSevere Thunderstorm Warning Considerable damage threatEWXFrio, Medina, Zavala53 min
May 10, 10:11 PM CDTAreal Flood AdvisoryEWXLee3 hr
May 10, 10:16 PM CDTAreal Flood AdvisoryEWXHays, Travis3 hr
May 10, 10:16 PM CDTSevere Thunderstorm WarningEWXBexar, Medina44 min
May 10, 10:23 PM CDTSevere Thunderstorm WarningEWXBastrop, Lee52 min
May 10, 10:25 PM CDTSevere Thunderstorm WarningEWXDimmit, Zavala35 min
May 10, 10:29 PM CDTSevere Thunderstorm WarningEWXDimmit, Maverick61 min
May 10, 10:38 PM CDTAreal Flood AdvisoryEWXBexar3 hr
May 10, 10:50 PM CDTSevere Thunderstorm WarningEWXFayette55 min
May 10, 10:54 PM CDTSevere Thunderstorm WarningEWXAtascosa, Bexar, Dimmit, Frio, Karnes, Medina and 2 more66 min
May 10, 11:07 PM CDTSpecial Weather StatementEWXDeWitt, Gonzales, Guadalupe, Lavaca53 min
May 10, 11:27 PM CDTSevere Thunderstorm WarningEWXDimmit, Maverick63 min
May 10, 11:54 PM CDTSpecial Weather StatementEWXKarnes51 min
May 10, 11:57 PM CDTSpecial Weather StatementEWXDimmit48 min
May 10, 11:59 PM CDTSpecial Weather StatementEWXDeWitt, Lavaca46 min
May 11, 12:06 AM CDTAreal Flood AdvisoryEWXDimmit, Maverick3 hr
May 11, 12:25 AM CDTAreal Flood AdvisoryEWXMaverick3 hr
May 11, 12:27 AM CDTSpecial Weather StatementEWXMaverick48 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.