A surface pressure trough, which later turned into a stationary front, situated over the Gulf of Mexico slowly crept northward until it reached the I-12 corridor near Baton Rouge. There, with abundant moisture in place, heavy showers developed along it as the front as it stalled right over Baton Rouge.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS LIX wrote it up.
A surface pressure trough, which later turned into a stationary front, situated over the Gulf of Mexico slowly crept northward until it reached the I-12 corridor near Baton Rouge. There, with abundant moisture in place, heavy showers developed along it as the front as it stalled right over Baton Rouge. Heavy downpours from stationary showers and storms produced flash flooding throughout the Baton Rouge metro and its surrounding suburbs on the morning of the 29th. By late-afternoon, the showers and storms finally weakened and dissipated, allowing the flooding to subside.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS New Orleans, LA wrote its last area forecast discussion before the first event at Jan 29, 8:40 AM CST, 2 hours 6 minutes earlier.
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</html>The national radar mosaic for the moment the first event began.
7 flash flood. Local standard time, as filed.
LADOTD reported that South Acadian Thruway was closed between Perkins Road and I-10 due to water on the road. Several other streets in southern Baton Rouge have water over the roads.
Brown Road had water over it as well as water over some secondary roads in south Denham Springs.
Mimosa Street and Lee Drive in Baton Rouge have water over them with water approaching houses in the vicinity. Other areas roads have water over them as well.
DOT reports the exit ramp from 110 north to Capitol Access Road is closed to due water on the roadway.
Water over the road which looks like from a creek overflowing. Lane looks impassable.
DOT reported I-110 south at North 9th Street is now closed due to flooding.
Yards flooded along Buddy Ellis Road and creeping onto the road. The estimated time is earlier than the picture to account for the start of the flooding.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Louisiana in 2023Every state in 2023This day in weather historyWarnings in Louisiana, January 2023
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 1077646, 1077652, 1077654, 1077655, 1077656, 1077657, 1077658.