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Around the gulf coast, anglers have to deal with one high and low tide a day. Normal ranges for these tides are about one foot, give or take a foot. The moon phase, time of year, and winds impact the range of the tides. A few days a month the tide range will be very low, around 0.2 ft of change for the whole day. Unless you have a tournament, this is the day to take the better half shpping. On the opposite end, a maximum tidal range is about 2 feet. Outgoing tides are better because the fish position around the small runouts or cuts. Moving water is a key to fishing in the marsh. A wind blown point, a runout or river bend with tidal flow, or water movement around the Cypress trees are common spots that have flow and fish. Use a tide chart as a tool but know that a strong wind can work against the strongest tide. Water flow and tide should be read on the water while the fishing trip is taking place. A high or incoming tidal flow might push the fish under vegetaion so flipping heavy weights through the slop might work. An outgoing tide may pull the fish into the middle of the canal to feed. A crankbait or spinnerbait may be the right call.
Pearl River/Northshore (link)
Lake Pontchartrain and the Rigolettes are influenced greatly by the wind. On the lower ends of the rivers, the water will flow when from a strong tide or winds blowing across the lake. Usually, any East or South wind pushes the tide in. A good out going tide is the best because it will pull the fish to just about any runout or point.
Shell Beach is close to the Delacroix area. This location is a good indication for the marsh tide East of New Orleans. Strong East winds push water into the marsh around Delacroix. This is a favorable water situation. Cold North winds tend to be the worst for the Delacroix bass because it pushes lots of water out of the area.
Lafitte/Des Allemands/Segnette (link)
Grand Isle is a barrier island at the bottom of Barataria Bay. Lafitte, Cataouatche, and Bayou Segnette sit to the north of the Barataria system. Specific tides for these areas west of the Mississippi are easy to find but as the tidal range goes in Grand Isle, so does the rest of the Barataria system. West and south winds tend to push or hold the tidal water in the marsh.
Bayou Black/Atchafalaya Basin below Hwy 90
Tides vary by latitude, longitude, and elevates, too. The Atchafalaya River is a big part of the tide below the Hwy 90 corridor between Houma and Lafayette. However, the area below 90 covers miles of marsh and water. The important thing to look for is morning high tides or low tides. An incoming tide is a different fishing pattern than a low tide.
Above Hwy 90/Atchafalaya Basin/Lake Verrett
This area is influenced by tide but tactics depend more on river stages, wind, and current weather patterns. High river stages flood the surrounding woods moving the fish out of the main waterways into the hard to reach forest.