textproduct: New Orleans/Baton Rouge

KEY MESSAGES

Updated at 625 PM CDT Fri Apr 10 2026

- Dangerous marine conditions will persist off and on through the weekend. Inexperienced mariners and those operating small craft should avoid navigating in dangerous conditions.

- Sunny skies and warm temperatures are on tap at least through the weekend. With a lot of outside activities like sports and festivals, sun and temperature related health risks are present. Make sure you are using sunscreen and drinking enough water.

- Potential exists for development of fog toward sunrise Saturday, especially near and east of Interstate 55.

SHORT TERM

(Now through Monday night) Issued at 1214 PM CDT Fri Apr 10 2026

Surface high pressure continues to dominate our weather. The high is centered over the east coast with our area on the southwest periphery. The high will move slowly to the east, but is more of a stretching than departure. This will leave us with moisture in the area, so humid feeling, but not enough moisture for any significant rain chances. This give mostly clear skies and warm temperatures with highs in the mid to upper 80s and overnight lows in the 60-65 range.

LONG TERM

(Tuesday morning through Thursday night) Issued at 1214 PM CDT Fri Apr 10 2026

Moving into next week, the surface pressure pattern will generally keep the winds coming out of the east or southeast through the period. For most of the period, forecast soundings show only limited moisture above 850 mb. Precipitable water values remain near or below 1 inch for much of that time, with 1 inch being pretty much right at the daily mean. Even the wettest forecast soundings only briefly reach the 75th percentile (1.2-1.3 inches).

This pattern should keep most of the area dry through the period. Although one or two showers could occur on pretty much any day, the only day that might have a mention in the grids is next Thursday, and that is only over the extreme northwest portion of the area well northwest of a McComb to Baton Rouge line, and only a slight chance there. Rainfall amounts during the long term period are expected to be less than one-tenth of an inch for most areas, with a totally dry period a more likely solution. Well above normal temperatures (5-10F above) will continue with highs mainly in the 80s, although the immediate coast might fall a degree or two short depending on timing of the daily sea breeze. Not out of the question that somewhere in our CWA a location reaches 90 degrees next week, which would be early, but not record-breaking unless it is McComb. The average first 90 degree day at our climate sites occurs in mid-May. Overnight lows will mainly be in the 60s. (RW/Schlotz)

AVIATION

(00Z TAFS) Issued at 625 PM CDT Fri Apr 10 2026

All forecast terminals VFR at issuance time. There have been isolated SHRA/TSRA over western and northern portions of the area in the last several hours in areas of localized convergence. This has primarily been near the Atchafalaya River Basin and southeast of KMCB. Expectation is these should dissipate in the next hour or two with the loss of surface heating.

The other issue that has been introduced is the potential for radiation fog development around sunrise Saturday. Most of the mesoscale modeling has been more aggressive in depicting fog development this afternoon, but not in quite as much agreement on location. Most of the agreement is in a triangle between KASD- KHDC-KMCB, and potentially over the Mississippi coastal terminals. For now, will indicate TEMPO IFR visibilities in several forecasts between 10z and 13z, but won't rule out LIFR or worse. Potential limitations to development would be high cloud cover or winds not decoupling. Any visibility restrictions should quickly improve to VFR by 15z, if not sooner.

MARINE

Issued at 1214 PM CDT Fri Apr 10 2026

Surface high pressure centered over the east coast puts us on the southwest periphery. Winds will continue from the east to southeast through the weekend. Current pressure gradient is driving speeds of 15+ kt giving Exercise Caution headlines at least through tomorrow. Movement of the high pressure to the east will allow speeds to diminish at least a bit as the weekend progresses and the headlines will be renewed if necessary.

LIX WATCHES/WARNINGS/ADVISORIES

LA...None. GM...None. MS...None. GM...None.