An upper level low moving eastward across the Midwest U.S. spawned several supercells as well as short lines of thunderstorms along a north-south aligned cold front as it crossed the Hill Country and approached the IH-35 corridor.  The storms produced heavy rainfall, large hail, and two tornadoes.

Hail in HAYS, TEXAS
From 30-MAR-07 09:10:00 to 30-MAR-07 09:20:00 (CST-6)
Location: WIMBERLEY
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in BEXAR, TEXAS
From 30-MAR-07 20:30:00 to 30-MAR-07 20:40:00 (CST-6)
Location: SAN ANTONIO
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in MEDINA, TEXAS
From 30-MAR-07 20:20:00 to 30-MAR-07 20:30:00 (CST-6)
Location: HONDO
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Severe thunderstorm winds blew down trees and damaged roofs of homes in Hondo.

Hail in UVALDE, TEXAS
From 30-MAR-07 22:08:00 to 30-MAR-07 22:15:00 (CST-6)
Location: REAGAN WELLS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Flash Flood in WILSON, TEXAS
From 31-MAR-07 02:30:00 to 31-MAR-07 04:00:00 (CST-6)
Location: FLORESVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Between 2 and 3 inches of rain fell across northern Wilson County, with up to 4 inches near Stockdale.  Flash flooding closed SH119, FM537, and SH123.

Flood in CALDWELL, TEXAS
From 31-MAR-07 10:30:00 to 31-MAR-07 23:30:00 (CST-6)
Location: LULING
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

The San Marcos River below Luling crested at 26.19 ft at 1730 CST on March 31, where flood stage is 20 ft.

Flood in HAYS, TEXAS
From 30-MAR-07 14:00:00 to 30-MAR-07 18:50:00 (CST-6)
Location: DRIFTWOOD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

Onion Creek near Driftwood crested at 11.04 ft at 1620 CST on March 30, where flood stage is 7 ft.

Hail in REAL, TEXAS
From 30-MAR-07 18:02:00 to 30-MAR-07 18:20:00 (CST-6)
Location: LEAKEY
Magnitude: 3.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in UVALDE, TEXAS
From 30-MAR-07 18:05:00 to 30-MAR-07 18:15:00 (CST-6)
Location: MONTELL
Magnitude: 3.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail up to 3 inches in diameter broke the windshield of the Skywarn spotter who observed it.

Flash Flood in REAL, TEXAS
From 30-MAR-07 18:30:00 to 30-MAR-07 23:30:00 (CST-6)
Location: LEAKEY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Slow-moving thunderstorms along the southern half of Real County produced widespread 1 to 2 inch amounts with isolated totals to 4 inches through the late afternoon and evening.  Flash flooding was reported over most roads from Leakey southward, including FM337.

Hail in UVALDE, TEXAS
From 30-MAR-07 18:30:00 to 30-MAR-07 18:40:00 (CST-6)
Location: CONCAN
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Flash Flood in UVALDE, TEXAS
From 30-MAR-07 18:30:00 to 31-MAR-07 00:30:00 (CST-6)
Location: REAGAN WELLS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Between 3 and 4 inches of rain fells around Reagan Wells, about 5 miles northwest of Concan.  Flash flooding developed that closed SH127 and FM1051.

Tornado in HAYS, TEXAS
From 30-MAR-07 09:25:00 to 30-MAR-07 09:28:00 (CST-6)
Location: DRIPPING SPGS
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A second tornado was reported by several members of the public as it touched down in an open field along Mt. Sharp Road about 8 miles southwest of Dripping Springs.  The tornado lifted and dissipated quickly.  No damage was indicated.

Tornado in HAYS, TEXAS
From 30-MAR-07 09:03:00 to 30-MAR-07 09:05:00 (CST-6)
Location: WIMBERLEY
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Officers of the Department of Public observed a small tornado northwest of Wimberley.  The tornado touched down very briefly in an open area, then lifted and dissipated without causing any damage.

Flash Flood in MEDINA, TEXAS
From 30-MAR-07 09:30:00 to 30-MAR-07 12:00:00 (CST-6)
Location: D HANIS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Between 2 and 3 inches of rain fell in the northwestern corner of Medina County, causing flash flooding that closed FM462 and FM1796.

Flash Flood in HAYS, TEXAS
From 30-MAR-07 09:30:00 to 30-MAR-07 13:00:00 (CST-6)
Location: HENLY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

General 3 to 4 inch rainfall over the southwestern two-thirds of Hays County resulted in widespread flash flooding.  An NWS survey found FM2325 closed northwest of Wimberley and FM165 closed near Henly.  In addition, parts of US290 was reported to be under water between Dripping Springs and Henly.  CR295 was also closed near San Marcos.

Flash Flood in BANDERA, TEXAS
From 30-MAR-07 11:00:00 to 30-MAR-07 14:30:00 (CST-6)
Location: TARPLEY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Tarpley received up to 4 inches in less than an hour, causing flash flooding that closed FM470 and FM462.

Flash Flood in GILLESPIE, TEXAS
From 30-MAR-07 12:00:00 to 30-MAR-07 15:00:00 (CST-6)
Location: FREDERICKSBURG
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Up to 4 inches of rain fell between Fredericksburg and Willow City, causing flash flooding that closed   FM1323 through the mid afternoon.

Flash Flood in KENDALL, TEXAS
From 30-MAR-07 13:00:00 to 30-MAR-07 15:00:00 (CST-6)
Location: BANKERSMITH
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorms produced rainfall of 2 to 3 inches in northern Kendall County, causing flash flooding that closed FM1376 through the mid afternoon.

Flash Flood in BURNET, TEXAS
From 30-MAR-07 13:30:00 to 30-MAR-07 16:00:00 (CST-6)
Location: MARBLE FALLS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorms in the early and mid afternoon produced between 3 and 4 inches of rain over northern Burnet County.  Highest amounts were in the Okalla area where FM963 and FM2657 were closed due to high water.

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

Up to 3 inches of rain fell at Payton in the late morning, closing SH32 and FM165 due to high water.