An area of low pressure over the western Caribbean Sea on September 9th moved west into the Bay of Campeche by the 11th. The low pressure area strengthened to become Tropical Storm Nicholas over the southern Gulf of Mexico on the morning of the 12th. Nicholas moved northward across the western Gulf of Mexico to the lower Texas coastal waters early on the 13th. Tropical storm force gusts reached the Middle Texas coast around daybreak of the 13th. Tropical storm wind gusts moved up the coast as Nicholas moved to the north during the afternoon and evening on the 13th. A storm surge of 2 to 3 feet occurred near Bob Hall Pier to Port Aransas.
TCOON site at Port O'Connor measured a maximum storm tide of 3.15 feet MHHW at 742 PM LST.  With the storm surge arrival during time of low tide, the maximum storm surge was 3.79 feet. TCOON site at Port Lavaca measured a maximum storm tide of 2.31 feet MHHW at 742 PM LST. With storm surge arrival during time of low tide, the maximum storm surge at Port Lavaca was 3.2 feet. Storm surge ranged from 2 to 4 feet over Calhoun County.
Minor erosion was noted along North Park Street in Port O'Connor adjacent to Matagorda Bay, where a debris line was observed. Moderate erosion was noted along Highway 316 and South Ocean Drive in Indianola, where the surge covered the road and moved concrete boulders and sand across the roadway. Several piers were severely damaged. Water entered several homes along the road that were at sea level. A debris line was observed on the west side of Highway 316 and South Ocean Drive.
north to Port O'Connor with the highest storm surge of 3.15 feet MHHW at Port O'Connor.
Widespread small to medium sized tree limbs were snapped over Port O'Connor with several large trees uprooted. Several utility poles were also snapped. Many fences were blown down in the older section of town. Improperly secured metal roofs were blown off and several boat storage buildings suffered significant sheet metal damage. Small to medium sized tree limbs were snapped around Indianola. Several roofs were damaged with sheet metal partially removed.
Nicholas made landfall southwest of Sargent as a minimal hurricane before midnight. Periods of heavy rain caused flooding problems in Corpus Christi in the morning and around Port O'Connor in the evening.

Storm Surge/Tide in CALHOUN COUNTY ISLANDS, TEXAS
From 13-SEP-21 14:00:00 to 13-SEP-21 22:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

TCOON site at Port O'Connor measured a maximum storm tide of 3.15 feet MHHW at 742 PM LST. With the storm surge arrival during time of low tide, the maximum storm surge was 3.79 feet at Port O'Connor. The storm surge likely ranged from 2 to 4 feet along the coast of Matagorda Island.

Flood in NUECES, TEXAS
From 13-SEP-21 07:00:00 to 13-SEP-21 08:30:00 (CST-6)
Location: CORPUS CHRISTI
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Construction road ramps from Interstate 37 and Highway 286 were flooded and not passable. Law enforcement reported multiple road closures in this area around downtown Corpus Christi.

Flood in NUECES, TEXAS
From 13-SEP-21 07:15:00 to 13-SEP-21 08:15:00 (CST-6)
Location: CORPUS CHRISTI
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Road closure on Tarlton Street between Churchill Drive and Ayers Street occurred due to flood waters.

Storm Surge/Tide in NUECES COUNTY ISLANDS, TEXAS
From 13-SEP-21 16:00:00 to 14-SEP-21 04:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

NOS site at Bob Hall Pier measured a maximum storm tide of 2.07 feet MHHW at 1024 PM LST. With the storm surge arrival during time of high tide, the maximum storm surge was 1.53 feet at Bob Hall Pier. C-MAN site at Port Aransas measured a maximum storm tide of 1.77 feet MHHW. The storm surge likely ranged from 1 to 2 feet along the coast of Mustang Island and northern Padre Island.

Storm Surge/Tide in COASTAL ARANSAS COUNTY, TEXAS
From 13-SEP-21 12:00:00 to 14-SEP-21 02:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

TCOON site at Aransas Wildlife Refuge measured a maximum storm tide of 2.38 feet MHHW at 636 PM LST. With the storm surge arrival during time of low tide, the maximum storm surge was 2.58 feet at Aransas Wildlife Refuge. The storm surge ranged from 1 to 2.5 feet for the coastal region of Aransas County.

Flood in CALHOUN, TEXAS
From 13-SEP-21 18:30:00 to 13-SEP-21 20:30:00 (CST-6)
Location: PORT O'CONNOR
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Band of heavy rain from Tropical Storm Nicholas moved across the Port O'Connor area during the late afternoon and evening hours on the 13th. Total rain amounts around 7 inches caused flooding of roads in the Port O'Connor area.

Storm Surge/Tide in COASTAL NUECES COUNTY, TEXAS
From 13-SEP-21 16:00:00 to 14-SEP-21 08:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

NOS site at Bob Hall Pier measured a maximum storm tide of 2.07 feet MHHW at 1024 PM LST. With the storm surge arrival during time of high tide, the maximum storm surge was 1.53 feet at Bob Hall Pier. TCOON site at Packery Channel Aransas measured a maximum storm tide of 1.47 feet MHHW with a maximum storm surge of 1.2 feet. The storm surge ranged from 1 to 1.5 feet for coastal sections of Nueces County.

Storm Surge/Tide in ARANSAS COUNTY ISLANDS, TEXAS
From 13-SEP-21 12:00:00 to 14-SEP-21 02:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

TCOON site at Aransas Wildlife Refuge measured a maximum storm tide of 2.38 feet MHHW at 636 PM LST. With the storm surge arrival during time of low tide, the maximum storm surge was 2.58 feet at Aransas Wildlife Refuge. The storm surge likely ranged from 2 to 3 feet for San Jose Island.

Storm Surge/Tide in COASTAL REFUGIO COUNTY, TEXAS
From 13-SEP-21 12:00:00 to 14-SEP-21 02:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

TCOON site at Aransas Wildlife Refuge measured a maximum storm tide of 2.38 feet MHHW at 636 PM LST. With the storm surge arrival during time of low tide, the maximum storm surge was 2.58 feet at Aransas Wildlife Refuge. Storm surge likely ranged from 1 to 2.5 feet for coastal sections of Refugio County.

Storm Surge/Tide in KLEBERG COUNTY ISLANDS, TEXAS
From 13-SEP-21 16:00:00 to 14-SEP-21 04:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

NOS site at Bob Hall Pier measured a maximum storm tide of 2.07 feet MHHW at 1024 PM LST. With the storm surge arrival during time of high tide, the maximum storm surge was 1.53 feet at Bob Hall Pier. The storm surge likely ranged from 1 to 1.5 feet along the coast of northern Padre Island in Kleberg County.

Tropical Storm in KLEBERG COUNTY ISLANDS, TEXAS
From 13-SEP-21 04:00:00 to 13-SEP-21 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Tropical storm force gusts occurred on north Padre Island in Kleberg County.

Tropical Storm in COASTAL KLEBERG COUNTY, TEXAS
From 13-SEP-21 05:00:00 to 13-SEP-21 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Tropical storm force gusts occurred over coastal sections of Kleberg County.

Tropical Storm in COASTAL NUECES COUNTY, TEXAS
From 13-SEP-21 05:00:00 to 13-SEP-21 19:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Tropical storm force gusts occurred over coastal sections of Nueces County.

Tropical Storm in NUECES COUNTY ISLANDS, TEXAS
From 13-SEP-21 05:00:00 to 13-SEP-21 19:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Tropical storm force gusts occurred over Mustang Island and north Padre Island in Nueces County.

Tropical Storm in COASTAL SAN PATRICO COUNTY, TEXAS
From 13-SEP-21 06:00:00 to 13-SEP-21 20:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Tropical storm force gusts occurred over coastal sections of San Patricio County.

Tropical Storm in COASTAL REFUGIO COUNTY, TEXAS
From 13-SEP-21 09:00:00 to 13-SEP-21 21:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Tropical storm force gusts occurred over coastal sections of Refugio County.

Tropical Storm in VICTORIA, TEXAS
From 13-SEP-21 15:00:00 to 13-SEP-21 22:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Tropical storm force gusts occurred over Victoria County.

Tropical Storm in INLAND CALHOUN COUNTY, TEXAS
From 13-SEP-21 14:00:00 to 13-SEP-21 22:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Tropical storm force gusts occurred over inland sections of Calhoun County.

Tropical Storm in CALHOUN COUNTY ISLANDS, TEXAS
From 13-SEP-21 14:00:00 to 14-SEP-21 02:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Tropical storm winds occurred over coastal sections of Calhoun County. A maximum wind gust to 67 knots or 77 mph occurred at Port O'Connor at 636 PM LST.

Tropical Storm in COASTAL CALHOUN COUNTY, TEXAS
From 13-SEP-21 14:00:00 to 14-SEP-21 01:00:00 (CST-6)
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Mesonet

Tropical storm winds occurred over coastal sections of Calhoun County. A maximum wind gust to 67 knots or 77 mph occurred at Port O'Connor at 636 PM LST. Widespread small to medium sized tree limbs were snapped over Port O'Connor with several large trees uprooted. Several utility poles were also snapped. Many fences were blown down in the older section of town. Improperly secured metal roofs were blown off and several boat storage buildings suffered significant sheet metal damage. Small to medium sized tree limbs were snapped around Indianola. Several roofs were damaged with sheet metal partially removed.

Storm Surge/Tide in COASTAL CALHOUN COUNTY, TEXAS
From 13-SEP-21 15:00:00 to 13-SEP-21 22:00:00 (CST-6)
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Mesonet

TCOON site at Port O'Connor measured a maximum storm tide of 3.15 feet MHHW at 742 PM LST.  With the storm surge arrival during time of low tide, the maximum storm surge was 3.79 feet. TCOON site at Port Lavaca measured a maximum storm tide of 2.31 feet MHHW at 742 PM LST. With storm surge arrival during time of low tide, the maximum storm surge at Port Lavaca was 3.2 feet.
Minor erosion was noted along North Park Street in Port O'Connor adjacent to Matagorda Bay, where a debris line was observed. Moderate erosion was noted along highway 316 and South Ocean Drive in Indianola, where the surge covered the road and moved concrete boulders and sand across the roadway. Several piers were severely damaged. Water entered several homes along the road that were at sea level. A debris line was observed on the west side of Highway 316 and South Ocean Drive.
While the storm surge ranged from 3 to 4 feet from Port Lavaca to Port O'Connor, the storm surge was around 1.5 feet in the Seadrift area.

Tropical Storm in ARANSAS COUNTY ISLANDS, TEXAS
From 13-SEP-21 08:00:00 to 13-SEP-21 22:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Tropical storm winds occurred over San Jose Island in Aransas County.

Tropical Storm in COASTAL ARANSAS COUNTY, TEXAS
From 13-SEP-21 09:00:00 to 13-SEP-21 21:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Tropical storm winds occurred over coastal sections of Aransas County.