A cold front moved into a very moist atmosphere and generated showers and thunderstorms some of which produced heavy rain that led to flash flooding. Rainfall totals during this episode included 8.40 inches at Mountain Home in Kerr County, 6.26 inches at Llano, and 9.27 inches at Castell in Llano County.  This widespread rainfall created a massive flood along the Llano River and its nearby creeks.  The flood waters went into the Colorado River and produced lake flooding on Lake LBJ, Lake Marble Falls, and Lake Travis where hundreds of homes were flooded.

Flash Flood in EDWARDS, TEXAS
From 15-OCT-18 12:02:00 to 15-OCT-18 13:15:00 (CST-6)
Location: BARKSDALE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorms produced heavy rain that led to flash flooding closing RR 335 along the Nueces River north of Barksdale.

Flash Flood in REAL, TEXAS
From 15-OCT-18 12:02:00 to 15-OCT-18 13:15:00 (CST-6)
Location: VANCE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorms produced heavy rain that led to flash flooding closing Hwy 55 along the Nueces River north of Camp Wood.

Flash Flood in LLANO, TEXAS
From 15-OCT-18 18:48:00 to 15-OCT-18 23:30:00 (CST-6)
Location: VALLEY SPGS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorms produced heavy rain that led to flash flooding closing multiple roads around the county including CR 404.

Flash Flood in LLANO, TEXAS
From 15-OCT-18 18:55:00 to 15-OCT-18 23:30:00 (CST-6)
Location: VALLEY SPGS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorms produced heavy rain that led to flash flooding washing out CR 414 at Pecan Creek east of Valley Spring.

Flash Flood in GILLESPIE, TEXAS
From 15-OCT-18 19:00:00 to 15-OCT-18 23:30:00 (CST-6)
Location: DOSS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Thunderstorms produced heavy rain that led to flash flooding closing RM 648 and RM 783 around Doss.

Flash Flood in REAL, TEXAS
From 15-OCT-18 21:16:00 to 16-OCT-18 01:30:00 (CST-6)
Location: VANCE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorms produced heavy rain that led to flash flooding closing Hwy 55 south of Camp Wood and RM 337 east of town.

Flash Flood in BURNET, TEXAS
From 15-OCT-18 21:38:00 to 15-OCT-18 23:30:00 (CST-6)
Location: FARILAND
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorms produced heavy rain that led to flash flooding closing RM 2342 along the Colorado River south of Lake Buchanan.

Flash Flood in GILLESPIE, TEXAS
From 15-OCT-18 21:41:00 to 15-OCT-18 23:45:00 (CST-6)
Location: WILLOW CITY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Thunderstorms produced heavy rain that led to flash flooding closing RM 1631 and RM 1323 east of Willow City.

Flash Flood in LLANO, TEXAS
From 16-OCT-18 01:50:00 to 16-OCT-18 02:30:00 (CST-6)
Location: LLANO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorms produced heavy rain that led to flash flooding closing multiple roads in and around Llano.

Flash Flood in KERR, TEXAS
From 16-OCT-18 03:14:00 to 16-OCT-18 04:30:00 (CST-6)
Location: MOUNTAIN HOME ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorms produced heavy rain that led to flash flooding closing multiple roads across western Kerr County.

Flash Flood in LLANO, TEXAS
From 16-OCT-18 06:15:00 to 16-OCT-18 20:30:00 (CST-6)
Location: VALLEY SPGS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorms produced heavy rain that led to flash flooding closing Hwy 29 along San Fernando Creek along with many other roads across the western half of the county.

Flash Flood in BURNET, TEXAS
From 16-OCT-18 13:27:00 to 16-OCT-18 20:30:00 (CST-6)
Location: MARBLE FALLS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Thunderstorms produced heavy rain that led to flash flooding closing RM 2147 at Flatrock Creek outside of Marble Falls.

Flash Flood in LLANO, TEXAS
From 15-OCT-18 18:48:00 to 15-OCT-18 23:30:00 (CST-6)
Location: CASTELL
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorms produced heavy rain that led to flash flooding closing multiple roads around the county including CR 405.

Flash Flood in LLANO, TEXAS
From 15-OCT-18 18:48:00 to 15-OCT-18 23:30:00 (CST-6)
Location: VALLEY SPGS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorms produced heavy rain that led to flash flooding closing multiple roads around the county including CR 408.

Flash Flood in GILLESPIE, TEXAS
From 15-OCT-18 19:00:00 to 15-OCT-18 23:30:00 (CST-6)
Location: MORRIS RANCH
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Thunderstorms produced heavy rain that led to flash flooding closing FM 2093 along the Pedernales River.

Flood in TRAVIS, TEXAS
From 16-OCT-18 12:00:00 to 28-OCT-18 12:00:00 (CST-6)
Location: AUSTIN LAKEWAY ARPT
Flood cause: Heavy Rain
Property damage: 10.00M
Crop damage: 0.00K
Reported by: Emergency Manager

After 5-10 inches of rain fell in the Llano River basin flood waters moved into the Colorado River basin along with heavy rain in the basin. Lake Travis rose into its flood pool (681 feet MSL) on the 16th and eventually rose to 704.3 feet MSL on the 19th. This flood water overwhelmed Austin's water treatment facilities and the city issued a boil water notice on the 22nd. The city and Travis and Williamson Counties distributed bottled water to residents. The Lower Colorado River Authority conducted flood operations opening as many as eight floodgates on Mansfield Dam to reduce the level of the lake. By the 28th the level was sufficiently low to allow the water treatment facilities to operate normally and the boil water notice was lifted.  In and around the Lake Travis area there were reportedly nearly 100 homes that experienced Major damage, 76 with Minor damage, and over 200 homes that were Affected.   Damage estimates and insured losses are not complete as of this writing but will likely top 10 million dollars.  The monetary loss to businesses in Austin with regards to the boil water notice are unknown.

Flash Flood in LLANO, TEXAS
From 16-OCT-18 08:30:00 to 16-OCT-18 20:30:00 (CST-6)
Location: KINGSLAND
Flood cause: Heavy Rain
Property damage: 20.00M
Crop damage: 0.00K
Reported by: Broadcast Media

Heavy rain overnight produced flash flooding that washed away the FM 2900 bridge across the Llano River in Kingsland. A body was recovered near Kingsland and it was determined that this fatality came from a flood in the city of Junction the previous week.  Damage to the bridge is estimated at 20 million dollars.

Flash Flood in REAL, TEXAS
From 15-OCT-18 21:16:00 to 16-OCT-18 01:30:00 (CST-6)
Location: PRADE RANCH
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorms produced heavy rain that led to flash flooding closing Hwy 41 across the northern part of the county.

Flash Flood in BURNET, TEXAS
From 15-OCT-18 21:38:00 to 15-OCT-18 23:30:00 (CST-6)
Location: BURNET CRADDOCK ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorms produced heavy rain that led to flash flooding closing CR 116/FM 3509 east of Inks Lake State Park.

Flood in BURNET, TEXAS
From 16-OCT-18 06:00:00 to 17-OCT-18 00:00:00 (CST-6)
Location: MARBLE FALLS ARPT
Flood cause: Heavy Rain
Property damage: 30.00M
Crop damage: 0.00K
Reported by: Emergency Manager

Heavy rain mainly west of Burnet County and lakes LBJ and Marble Falls, caused rapid rises on the Colorado River.  Several hundred thousand CFS of flood water entered Lake LBJ near Kingsland (where the Llano River enters the lake), with flood waters flowing down the Colorado River into Lake Marble Falls.  Lake LBJ and Marble Falls rose rapidly, flooding homes and some businesses.  While the lake only rose a few feet at Wirtz Dam, farther upstream on Lake LBJ near Kingsland, Granite Shoals, Highland Haven, and Cottonwood shores, rapid rises on the Lake caused many homes to flood.  Lake LBJ started to rise in the predawn hours and continued high through the day.  Downstream of Wirtz dam is Lake Marble Falls which saw a 15 feet rise in less than 12 hours.  Evacuation notices were sent out near the Lake on the morning of Oct 16.  For the above mentioned communities, estimates of damage include 17 homes destroyed, 168 with Major damage, 64 homes with Minor Damage, and 31 homes that were affected.  As of this writing, early and ongoing flood insurance payouts totaled over 11 million dollars so far along with roughly 7 million spend on debris removal and 2 million dollars worth of damage to the Marble Falls water treatment plant.  Additional flood repairs to homes should easily surpass an additional 10-15 million dollars when you total the several hundred homes impacted.  It is estimated that total losses in Burnet County and Lakes LBJ and Marble Falls could surpass 30 million dollars.

Flood in LLANO, TEXAS
From 16-OCT-18 06:00:00 to 17-OCT-18 00:00:00 (CST-6)
Location: KINGSLAND WILLIAMSAR
Flood cause: Heavy Rain
Property damage: 50.00M
Crop damage: 0.00K
Reported by: Emergency Manager

Heavy rain across Llano County and points west produced a large flash flood on the Llano River.  The flash flood emptied into Lake LBJ at Kingland, causing water to back up in the lake and flood areas as early as 7 am north of Kingland.  Many homes along the canals had 4-6 feet of water in them.  Many homes along Lake LBJ in Kingsland flooded, as well as areas down the lake at Sunrise Beach and Horseshoe Bay.  Lake LBJ started to rise in the predawn hours and continued high through the day.  In Llano County, preliminary damage assessments show estimates of 38 homes destroyed, 494 with Major damage, 140 with minor damage, and 49 that were affected.  A few businesses also took on water.  The FM 2900 highway bridge was destroyed with a total replacement cost estimated to be 20 million dollars.  As of this writing, over 8 million has been paid out to Flood insurance claims with much more to likely come.  Infrastructure loses including debris removal should surpass 12 million dollars.  Home damage could easily be estimated at an additional 15 to 20 million dollars.  As of this writing will place a damage estimate of 50 million although numbers could exceed this.

Flash Flood in LLANO, TEXAS
From 16-OCT-18 04:00:00 to 16-OCT-18 12:00:00 (CST-6)
Location: LLANO
Flood cause: Heavy Rain
Property damage: 1.00M
Crop damage: 0.00K
Reported by: Emergency Manager

Heavy rain caused an extensive rise in area creeks and rivers, pushing the Llano River to near 40 feet at the USGS river gauge in Llano.  This is the 2nd highest ever recorded height on the river in the city of Llano.  Flow peaked out about 285,000 CFS around 730 AM that morning nearly coming up to the level of the Highway 16 (Ford St.) bridge in town.  Several homes were flooded along the river with damage to the area parks as well.  A 58 year old woman lost her life in her vehicle as she was trying to get to work in town near West Sandstone and Flag Street.  Time when she entered the water is unknown but is estimated around 5 AM that morning.  Phone and internet service went down as the high water flow washed away phone lines underneath the Llano River Bridge.  Damage in the city of Llano will likely surpass 1 million dollars.