Thunderstorms formed in advance of a cold front over much of South Central Texas early on the morning of January 13.  The storms produce spotty heavy rainfall as they tracked slowly northward along IH-35.  One of the thunderstorms developed into a supercell and produced a brief tornado near San Marcos.  Additional strong storms later formed along the front and produced additional spotty heavy rain along the IH-35 corridor as the front moved southward, with some areas experiencing flash flooding.

Flood in TRAVIS, TEXAS
From 13-JAN-07 08:45:00 to 13-JAN-07 10:30:00 (CST-6)
Location: AUSTIN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

Shoal Creek near Lamar Street crested at 14.76  feet at 0915cst on January 13, where 10 feet is flood stage.

Flood in TRAVIS, TEXAS
From 13-JAN-07 09:30:00 to 13-JAN-07 21:00:00 (CST-6)
Location: AUSTIN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

Onion Creek in Austin at SH183 crested at 22.97 feet at 1245cst on January 13, where 17 feet is flood stage.

Flash Flood in WILLIAMSON, TEXAS
From 13-JAN-07 10:00:00 to 13-JAN-07 12:00:00 (CST-6)
Location: TAYLOR
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorms accompanying the cold front moved particularly slowly across Williamson County, with general rain totals of 1 to 2 inches and highest amounts of 4 to 5 inches between Taylor and Bartlett.  SH29, FM971,  FM972, and FM1331 were closed due to high water.

Flash Flood in COMAL, TEXAS
From 13-JAN-07 11:30:00 to 13-JAN-07 13:30:00 (CST-6)
Location: NEW BRAUNFELS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Flooding that had occurred earlier in the New Braunfels area ended in the mid morning with a brief break in the rainfall.  Around 1130 am, additional storms associated with the cold front began producing more rainfall.  This second event produced between 2 and 3 additional inches of rain in New Braunfels and streets and roads in and around the city again were closed due to flash flooding.

Thunderstorm Wind in HAYS, TEXAS
From 13-JAN-07 07:00:00 to 13-JAN-07 07:15:00 (CST-6)
Location: SAN MARCOS
Magnitude: 70.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A severe thunderstorm struck just south of the San Marcos Police Headquarters Building near 7:00 am and produced winds estimated at 70 to 80 mph northward along IH-35.  At the beginning of the damage path, tin metal roofs were torn off several buildings and tossed several hundred feet.  Damage was noted to roofs and eaves as well as walls of some buildings.  Typically, all the damage was blown toward the north.  These severe winds continued from the initial damage location for approximately one mile to a residential area.  All along this path the team saw sections of tin ripped from roofs, with pieces tossed several hundred feet.  At one location a large wooden deck was torn from a one-story building.  Again, all the debris in this mile-long path was blown in the same direction - toward the north.

Flash Flood in BLANCO, TEXAS
From 13-JAN-07 12:00:00 to 13-JAN-07 14:00:00 (CST-6)
Location: JOHNSON CITY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Showers and thunderstorms accompanying the cold front produced between 2 and 3 inches of rain in the area between Johnson City and Twin Sisters, with up to 4 inches in the Twin Sisters area.  FM473 was closed in the early afternoon due to flash flooding.   Fm2766 was also reported closed near Johnson City.

Flash Flood in KENDALL, TEXAS
From 13-JAN-07 12:00:00 to 13-JAN-07 13:30:00 (CST-6)
Location: SISTERDALE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Storms with the cold front dropped between 1 and 2 inches over eastern Kendall County with up to 4 inches in places between Sisterdale and Kendalia.  FM473, FM474, and FM3351 were closed in the early afternoon for a short time due to flash flooding.

Flood in BASTROP, TEXAS
From 13-JAN-07 09:30:00 to 13-JAN-07 21:00:00 (CST-6)
Location: ELGIN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

Wilbarger Creek in Elgin crested at 34.10 feet at 2100cst on January 13, where 27 feet is flood stage.

Tornado in HAYS, TEXAS
From 13-JAN-07 07:08:00 to 13-JAN-07 07:10:00 (CST-6)
Location: SAN MARCOS
Tornado F-scale: F1
Property damage: 50.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Much more severe damage was seen near the center of this path at Police Headquarters.  Just south of the building, metal roofs had been torn off a structure and tossed toward the north.  In the south parking lot adjacent to the building, three telephone poles were blown down...one toward the west���one toward the north���and one toward the south.  An officer was in his vehicle at 7:08 am CST as the storm struck���parked next to a large metal building which partly protected it.  The officer reported that very high winds and heavy rain began blowing from north to south���then abruptly changed direction and began blowing from south to north���accompanied by penny-sized hail.  His car���in spite of being somewhat sheltered���was badly damaged by the blowing debris.  In all���thirty-five vehicles at the Police Building sustained damage���with numerous dents and large gashes in car bodies���as well as windows and windshields fractured.  A large area of brick was ejected from an upper portion of the Building���s north wall.  The conclusion of the survey team was that this damage at the Police Headquarters was due to a small and short-lived tornado that occurred just behind the 70 to 80 mph thunderstorm winds. Damage was also found about 200 yards north of the Police Building at a business that manufactures lighting fixtures.  This was thought to be a second touchdown of the small tornado.  Here a large dumpster was spun almost 360 degrees and several trailers were slammed into each other. A single-wide trailer was tipped over on its side.  Windows and doors at the building were broken, with some blown inward and some blown outward.  Based on the type and level of damage, the tornado was rated an F1 on the Fujita Scale, and an EF1 on the new Enhanced Fujita Scale.  The tornado path was estimated to be 100 yards wide and a three-tenths of a mile long.

Flash Flood in HAYS, TEXAS
From 13-JAN-07 07:30:00 to 13-JAN-07 12:00:00 (CST-6)
Location: KYLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Rainfall south of a line from Wimberley to Buda averaged between 2 and 3 inches, with between 5 and 7 inches in the San Marcos area. Widespread flash flooding closed FM12, FM150 and FM621,among many other rural roads and city streets through the morning period.  This flood was a large factor in making recovery efforts from the wind and tornado damage even more difficult.

Flash Flood in COMAL, TEXAS
From 13-JAN-07 08:30:00 to 13-JAN-07 10:00:00 (CST-6)
Location: NEW BRAUNFELS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

The thunderstorms produced a general 1 inch rain over southeast Comal County, with up to 3 inches in just over an hour in the city of New Braunfels.  Loop 337, FM306 and FM2722 were closed briefly due to high water through the mid  morning period.

Flash Flood in TRAVIS, TEXAS
From 13-JAN-07 07:00:00 to 13-JAN-07 13:00:00 (CST-6)
Location: AUSTIN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorms dropped between 1 and 2 inches over eastern Travis County with up to 4 inches at Manor. Flash flooding was reported by Austin/Travis Office of Emergency Management east of IH-35, closing FM973 and FM969.  Nearly one dozen high water rescues were reported along Caesar Chavez, Guadalupe Street, Steck and MoPac, just south of Ben White.  A woman was reported to have been swept into Waller Creek.  Although rescue and recovery personnel searched the area for several hours, they were unable to find her.  Her body was finally recovered at Longhorn Dam on March 23.