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 at 25 to 35 mph for several hours.

Thunderstorm Wind in WILLACY, TEXAS
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 Harbor Master reported wind gusts up to 60 miles per hour were measured during a strong thunderstorm which moved through Port Mansfield in the early afternoon.  Duration of gusts estimated by proxy with similar conditions as the line passed Laguna Madre-side locations farther north.

Thunderstorm Wind in KENEDY, TEXAS
From 26-OCT-09 13:06:00 to 26-OCT-09 13:15:00 (CST-6)
Location: NORIAS
Magnitude: 56.00 EG
Reported by: Buoy

The Rincon Del San Jose TCOON site reported a wind gusts to 66 miles per hour during a thunderstorm which moved through the coastal areas early in the afternoon.  Note:  This location is immediately east of the Kenedy County Laguna Madre coastline and is used as a proxy to estimate winds over this area.

Thunderstorm Wind in KENEDY, TEXAS
From 26-OCT-09 12:24:00 to 26-OCT-09 12:36:00 (CST-6)
Location: SARITA
Magnitude: 56.00 EG
Crop damage: 0.00K
Reported by: Buoy

A Texas Coastal and Ocean Observing Network site at Baffin Bay, just a few miles northeast of Kenedy County, recorded wind gusts up to 65 mile per hour when line of strong to severe thunderstorms rapidly developed in western Kenedy County and raced east.  Wind gusts at or above 60 mph continued until 1236 PM.  Note:  Wind gust value is used as a proxy to estimated value on the nearby promontory of northeast Kenedy County.

Thunderstorm Wind in CAMERON, TEXAS
From 26-OCT-09 14:15:00 to 26-OCT-09 14:15:00 (CST-6)
Location: PORT ISABEL
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

An amateur radio operator reported that the Isla Grande Resort weatherbug station recorded a peak wind gust of 59 miles per hour when a thunderstorm moved through the resort during the passage of a cold front.

Thunderstorm Wind in CAMERON, TEXAS
From 26-OCT-09 13:50:00 to 26-OCT-09 14:05:00 (CST-6)
Location: LOS FRESNOS
Magnitude: 49.00 MG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: ASOS

A line of strong to severe thunderstorms marched through central and eastern Cameron County during the mid afternoon of October 26th.  Long duration wind gusts associated with the microburst produced peak winds of 56 mph at the Cameron County Airport, and 57 mph at the Realitos Peninsula Texas Coastal Ocean Observing Network site less than 10 miles to the northeast.
NWS employees from Rancho Viejo (west of this track) and just north of Los Fresnos reported several small limbs down; an 8 to 12 inch diameter limb blown down in Rancho Viejo was rotting.