A vigorous cold front moved through Deep South Texas and the adjacent Gulf of Mexico coastal waters toward the end of October, producing a line of strong to severe thunderstorms which began in western Kenedy County then migrated south southeast through Willacy and Cameron County, as well as the adjacent coastal waters.
Wind gusts between 55 and 65 mph were common as the storms intensified; interestingly, persistent winds within the microburst core maintained these gusts for 15 minutes or more in some areas, with up to an hour of sustained winds above Gale Force. Post-frontal winds behind the line continued with near Gale Force gusts for several hours.

Marine Thunderstorm Wind in WATERS FROM BAFFIN BAY TO PT MANSFIELD TX EXT FROM 20 TO 60NM, GULF OF MEXICO
From 26-OCT-09 14:10:00 to 26-OCT-09 14:20:00 (CST-6)
Location: S BAFFIN BAY
Magnitude: 53.00 MG
Reported by: Buoy

A line of strong to severe thunderstorms preceded a cold front into the Lower Texas Gulf waters, producing at least 15 minutes of gale force sustained winds with gusts to storm force.  The peak gust of 53 knots (61 mph) occurred at 214 PM CST, with sustained winds of 43 knots (49 mph) lasting for at least 10 minutes beginning at 210 PM CST.

Marine Thunderstorm Wind in LAGUNA MADRE FROM PORT OF BROWNSVILLE TO ARROYO COLORADO, GULF OF MEXICO
From 26-OCT-09 13:54:00 to 26-OCT-09 14:24:00 (CST-6)
Location: ARROYO CITY
Magnitude: 50.00 MG
Reported by: Buoy

A line of strong to severe thunderstorms produced a long duration microburst as it swept across the Laguna Madre and into the Lower Texas Gulf coast.  At 154 PM CST, a 57 mph wind gust was recorded at the Realitos Peninsula Texas Coastal Ocean Observation Network.  Gusts of 50 mph or greater occurred until 324 PM before the sensor temporarily became non operational.  Times are accurate within 6 minutes.

Marine Thunderstorm Wind in WATERS FROM PT MANSFIELD TO RIO GRANDE TX EXT FROM 20 TO 60NM, GULF OF MEXICO
From 26-OCT-09 15:30:00 to 26-OCT-09 16:30:00 (CST-6)
Location: SOUTH PADRE ISLAND
Magnitude: 58.00 MG
Crop damage: 0.00K
Reported by: Buoy

A line of strong thunderstorms, enhanced by the strong cold front catching up to it, produced wind gusts nearing 70 mph as recorded by a Texas A&M University Automated Buoy System observation east of South Padre Island, beginning at 330 PM CST.  The microburst following the front maintained storm force gusts through at least 4 PM CST.

Marine Thunderstorm Wind in LAGUNA MADRE FROM 5NM N OF PT MANSFIELD TO BAFFIN BAY TX, GULF OF MEXICO
From 26-OCT-09 13:06:00 to 26-OCT-09 13:15:00 (CST-6)
Location: S BAFFIN BAY
Magnitude: 57.00 MG
Reported by: Buoy

A thunderstorm wind gust to 65.5 mph was recorded at the Texas Coastal Ocean Observing Network buoy near Rincon del San Jose, beginning at 1:06 PM CST and continuing until at least 1:15 PM CST until the sensor briefly went offline.

Marine Thunderstorm Wind in LAGUNA MADRE FROM ARROYO COLORADO TO 5NM N OF PT MANSFIELD TX, GULF OF MEXICO
From 26-OCT-09 13:15:00 to 26-OCT-09 13:25:00 (CST-6)
Location: PORT MANSFIELD
Magnitude: 52.00 EG
Reported by: COOP Observer

The Port Mansfield Harbormaster estimated a wind gust of 60 mph as a line of strong to severe thunderstorms swept across the Lower Texas coast.  Location of marine report is approximate and is a practical eastward extension of the land report, which is less than a mile from the Laguna Madre waters.

Marine Thunderstorm Wind in LAGUNA MADRE FROM PORT OF BROWNSVILLE TO ARROYO COLORADO, GULF OF MEXICO
From 26-OCT-09 15:30:00 to 26-OCT-09 15:48:00 (CST-6)
Location: PORT ISABEL
Magnitude: 37.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

Wind gusts associated with a line of strong thunderstorms preceding a cold front increased to just over 37 knots at the Port Isabel C-MAN station, located a mile from the southmost portion of the Laguna Madre.  Gusts at or above gale force (34 knots) continued for 18 minutes, and returned an hour later as the frontal gradient moved across the area.

Marine Thunderstorm Wind in LAGUNA MADRE FROM 5NM N OF PT MANSFIELD TO BAFFIN BAY TX, GULF OF MEXICO
From 26-OCT-09 12:24:00 to 26-OCT-09 12:36:00 (CST-6)
Location: S BAFFIN BAY
Magnitude: 57.00 EG
Reported by: Buoy

A Texas Coastal Ocean Observing System Buoy located in Baffin Bay reported a wind gust ot 65.3 mph.  Wind gusts greater than 60 mph continued for at least 12 minutes.  Note:  Estimation of wind over the Laguna Madre just east of Kenedy County, or only 2 miles south of the buoy location, is given by proxy.