A cluster of thunderstorms in northern Mexico began to bow out south of Hidalgo County and the Rio Grande River and headed for the southern half of Cameron County. As the storms raced through, they produced several minutes of 60 mph gusts or higher at the Brownsville-South Padre International Airport. As the cluster of storms formed into an MCS closer to the coast in northeastern Mexico, it sent a surge of wind across extreme southeastern Cameron County, including Boca Chica Beach, Port Isabel, and South Padre Island. It is here where the worst of the damage occurred with several buildings losing all or part of their roofs and a couple of flipped RVs at Isla Blanca. The strongest wind gust was measured near the Coast Guard Station on South Padre Island at 77 knots, or 89 mph.

Thunderstorm Wind in CAMERON, TEXAS
From 09-MAY-23 00:15:00 to 09-MAY-23 00:15:00 (CST-6)
Location: RANCHO VIEJO
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

An NWS employee reported a tree trunk, approximately 18 inches in diameter, split in half. Estimated wind speed of 60 mph.

Thunderstorm Wind in CAMERON, TEXAS
From 09-MAY-23 00:15:00 to 09-MAY-23 00:32:00 (CST-6)
Location: (BRO)BROWNSVILLE ARP
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The ASOS station at Brownsville-South Padre International Airport gusted to 64 mph at 1:19AM CDT, with several gusts above 60 mph between 1:15AM CDT and 1:32AM CDT.

Thunderstorm Wind in CAMERON, TEXAS
From 09-MAY-23 00:49:00 to 09-MAY-23 00:53:00 (CST-6)
Location: PORT ISABEL
Magnitude: 77.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

The aerostat site anemometer at the South Padre Island Coast Guard station reported a peak wind gust of 77.3 knots, or 89 mph, at 1:49AM CDT.

Thunderstorm Wind in CAMERON, TEXAS
From 09-MAY-23 00:35:00 to 09-MAY-23 00:53:00 (CST-6)
Location: BOCA CHICA
Magnitude: 57.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Private meteorologist reported a wind gust of 73 mph at 100 feet in elevation near Boca Chica Beach with wind gusts above 58 mph starting around 1:35AM CDT. The highest gust was recorded at 1:53AM CDT.

Thunderstorm Wind in CAMERON, TEXAS
From 09-MAY-23 00:48:00 to 09-MAY-23 00:54:00 (CST-6)
Location: PORT ISABEL
Magnitude: 52.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Port Isabel police department reported several powerlines down around town. Timing based on radar. While wind speeds are estimated, the NOAA National Ocean Service (NOS) at Port Isabel (PTIT2) recorded wind gusts of 52 knots, or 60 mph, at 1:54AM CDT.

Thunderstorm Wind in CAMERON, TEXAS
From 09-MAY-23 00:48:00 to 09-MAY-23 00:54:00 (CST-6)
Location: PORT ISABEL
Magnitude: 52.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Law Enforcement

The Port Isabel Police Department shared pictures on social media showing damage to the Sunoco Gas station awning at the corner of Highway 48 and Highway 100 and an ice chest that had moved several feet from the front of the building. Several pictures of powerlines down were also shown. NOAA's National Ocean Service (NOS) site at Port Isabel (PTIT2) recorded wind gusts of 52 knots, or 60 mph, at 1:54AM CDT, and was used as a guide for when the strongest winds were ending.

Thunderstorm Wind in CAMERON, TEXAS
From 09-MAY-23 00:44:00 to 09-MAY-23 00:45:00 (CST-6)
Location: BAYSIDE
Magnitude: 65.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An NWS Storm Survey conducted in the Laguna Heights area found several damaged trees, which supports wind gusts estimated at 75 mph. A large ash tree had its trunk snapped in two places near the intersection of Van Buren Street and Harding Street. A manufactured home lost some shingles and uplifted a portion of metal roof covering along Harding Street between Van Buren Street and Jackson Avenue. Along Madison Street, several large tree branches were broken. Finally, a poorly anchored wooden real estate sign was uprooted near the intersection of N Roosevelt Street and HWY 100.

Thunderstorm Wind in CAMERON, TEXAS
From 09-MAY-23 00:25:00 to 09-MAY-23 00:25:00 (CST-6)
Location: LAURELES
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

An NWS employee reported a metal carport was blown over and across the street in Los Fresnos. Time estimated from radar.

Thunderstorm Wind in CAMERON, TEXAS
From 09-MAY-23 00:48:00 to 09-MAY-23 00:49:00 (CST-6)
Location: PORT ISABEL
Magnitude: 77.00 MG
Property damage: 1.50M
Crop damage: 0.00K
Reported by: NWS Storm Survey

An NWS Storm Survey was conducted on South Padre Island and found several areas of damage along South Padre Island. The survey found a couple of downed fences in the Isla Blanca area on the southern side of the island along with a couple of flipped recreational vehicles (RVs) that were exposed to the wind but only anchored by unfastened scissor jacks. The flipped RVs were initially reported by a member of the public shortly after the storms moved offshore. Winds here were measured at the Brazos Santiago (BZST2) Texas Coastal Ocean Observing Network site (TCOON) to be near 84 mph. A little farther north along the island, the metal roof at Longboards was peeled back along with a canvas type material that was blown onto the second story balcony of an older apartment complex along W Palm Street. Some of the most extensive damage was witnessed at the El Castile Condo at the corner of W Polaris Dr and Laguna Blvd, which lost its roof and roof decking and exposed at least two dozen units to the elements during the storm. Lastly, the South Padre Island Convention Center's Main Exposition hall lost a significant portion of its roof along with a snapped ash tree nearby, suggesting wind speeds remaining near 85 to 90 mph. Additionally, South Padre Island Police Department reported multiple powerlines down across the island immediately after the event.
Note:  times listed are based on the survey results. All severe criteria (58 mph or greater wind gusts) occurred between 148 and 206 AM based on reports from various platforms in the area.