textproduct: New Orleans/Baton Rouge

KEY MESSAGES

Updated at 521 AM CDT Sat Apr 11 2026

- Rough marine conditions will persist through the weekend. Inexperienced mariners and those operating small craft should avoid navigating in rough 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.

- Dense fog advisory has been issued for the northern half of the area. Potential exists for development of dense fog toward sunrise Sunday as well.

UPDATE

Issued at 521 AM CDT Sat Apr 11 2026

Dense fog advisory issued this morning. Dense fog is spreading rapidly NW this morning and should continue to do so through sunrise then dissipate by 9am.

SHORT TERM

(Now through Tuesday) Issued at 1037 PM CDT Fri Apr 10 2026

The weather we had yesterday minus the rain to the west will be the same that we will see through at least Tuesday. High pressure centered over the Atlantic will continue to ridge into the gulf sending easterly to SE winds over the area for the next several days. Dry air in the mid levels will move into the area today through Tuesday to also keep any real chance of sh/ts away as well.

LONG TERM

(Tuesday night through Friday) Issued at 1037 PM CDT Fri Apr 10 2026

An upper ridge is expected to be centered over the middle of the Gulf Tuesday evening, and will settle a bit southward to the Bay of Campeche Friday as shortwaves moving out of the southern Rockies toward the Great Lakes gradually erode the top of the ridge. At the surface, high pressure over the western Atlantic and eastern Gulf will continue to control the weather across the area with southerly surface flow.

As we saw on Friday afternoon, even with precipitable water values between the 50th and 75th percentile, we can still get at least isolated convective development. For much of next week, moisture may not be even as abundant as it was on Friday, so there may not be any precipitation development at all. If there is any convective development during the long term period, the only opportunity looks to be on Thursday, when the ECMWF operational solution from Friday morning shows a shortwave close enough to possibly aid development. The last few operational GFS solutions indicate next week should be dry, and the WPC QPF forecast is dry as well.

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. Most likely days would be Thursday or Friday. The average first 90 degree day at our climate sites occurs in mid- May. Overnight lows will mainly be in the 60s. (RW)

AVIATION

(12Z TAFS) Issued at 521 AM CDT Sat Apr 11 2026

IFR to LIFR cigs and vis are occurring this morning at several terminals. This will quickly dissipate before mid morning bringing VFR conditions until late tonight, early Sunday morning.

MARINE

Issued at 1037 PM CDT Fri Apr 10 2026

Strong surface high pressure from the northeast gulf into the Atlantic continues to produce a moderate easterly to southeasterly fetch over the northern Gulf. Rough marine conditions with winds at 15+ kt are present and expected to continue through the weekend prompting issuance of Small Craft Exercise Caution headlines. Conditions will improve slightly into the new work week as winds ease to around 10kt.

LIX WATCHES/WARNINGS/ADVISORIES

LA...Dense Fog Advisory until 9 AM CDT this morning for LAZ034>037- 039-046>048-056>058-071-076-079>086-089.

GM...None. MS...Dense Fog Advisory until 9 AM CDT this morning for MSZ068>071- 077-083>088.

GM...None.