Tropical Storm Beta initially developed as a disturbance in the Bay of Campeche early on September 10th. The system drifting around the Bay of Campeche for several days as development was unlikely due to unfavorable upper-level winds produced by nearby Hurricane Sally. This system eventually began to organize and became Tropical Depression Twenty-Two on September 17th and became Tropical Storm Beta on September 18th. The storm continued to intensify reaching a peak of 60mph winds and a central pressure of 994mb (29.36 inHg) on September 19th as the storm became nearly stationary after turning westward over the Gulf of Mexico. Tropical Storm Beta approached the Texas coast and weakened before making landfall on the Matagorda Peninsula on September 22nd with maximum sustained winds of 45mph and a pressure of 999mb (29.50 inHg).
A tight pressure gradient between Beta and an area of high pressure to the northeast resulted in persistent moderate to strong onshore east and northeast winds across the area. This caused an extended duration of impacts to the area between the days of September 19th and September 23rd. The strongest winds and highest water levels occurred when Beta's center of circulation was well removed from the local area and thus much of the local impacts were mainly confined to marine and coastal areas where tropical storm watches and warnings were in effect.

Marine Tropical Storm in COASTAL WATERS FROM BOOTHVILLE LOUISIANA TO SOUTHWEST PASS OF THE MISSISSIPPI RIVER OUT 20 NM, GULF OF MEXICO
From 20-SEP-20 18:54:00 to 20-SEP-20 19:06:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

CMAN stateion PSTL1 - Pilots Station East measured sustained winds of 45 knots on the 20th at 1906 CDT with a peak gust of 54 knots on the 20th at 1854 CDT.

Marine Tropical Storm in COASTAL WATERS FROM SOUTHWEST PASS OF THE MISSISSIPPI RIVER TO PORT FOURCHON LOUISIANA OUT 20 NM, GULF OF MEXICO
From 21-SEP-20 00:15:00 to 21-SEP-20 19:35:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

KXPY - Port Fourchon AWOS reported sustained winds of 30kt on the 21st at 0015 CDT with a peak gust of 44kt on the 21st at 1935 CDT. LOPL1- Louisiana Offshore Oil Port measured sustained winds of of 41 knots on the 19th at 2319 CDT with a peak gust of 49 knots on the 19th at 1619 CDT. BURL1 - NOAA C-MAN SW PASS measured sustained winds of 44 knots on the 20th at 1900 CDT with a peak wind gust of 50 knots on the 20th at 1900 CDT. KDLP - West Delta 27A Platform measured sustained winds of 42 knots on the 19th at 2015 CDT and peak wind gust of 48 knots on the 20th at 2015 CDT.

Marine Tropical Storm in COASTAL WATERS FROM PASCAGOULA MISSISSIPPI TO STAKE ISLAND LOUISIANA FROM 20 TO 60 NM, GULF OF MEXICO
From 19-SEP-20 20:30:00 to 20-SEP-20 11:55:00 (CST-6)
Reported by: AWOS

KVKY - Main Pass 289C measured sustained winds of 39 knots on the 19th at 2030 CDT with a peak wind gust of 48 knots on the 20th at 1115 CDT.

Marine Tropical Storm in LAKE BORGNE, GULF OF MEXICO
From 20-SEP-20 13:12:00 to 21-SEP-20 10:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wx Flow Mesonet station at Bayou Bienvenue measured sustained winds of 34 knots with a peak wind gust of 40 knots on the 21st at 1030 CDT. NOAA NOS station SHBL1 - Shell Beach measured sustained winds of 34 knots on the 20th at 1312 CDT with a peak wind gust of 41 knots on the 20th at 1230 CDT.