Marine Weather and Tide Forecast for Grenada, MS

DISCUSSION
Issued at 202 PM CDT Wed Apr 15 2026

Tonight through early next week (Tuesday)...

Tonight through Friday: Southerly return flow will keep fog development on cards for the overnight period. 12Z HRRR and REFS indicate good dense fog probs (40 to 60 percent) for areas that had fog issues early this morning. Based on continued stagnant and carbon copy of an environment, went ahead again with an HWO graphic for dense fog and thinking about potential for a Dense Fog Advisory in the southeast Pine Belt areas.

Weekend into early next week (Saturday through next Tuesday):

Mean ridging over the Gulf Coast into the southeast states will shunt an approaching front off to the northwest. A shortwave trough and front will drive some rain chances into the Highway 82 corridor into Tuesday, with the timing mainly in the afternoon to evening hours and low coverage (20 to 35 percent). Ridge will build back in the wake into Friday, with decent probability (30 to 60 percent) for high temperatures reaching 90 degrees.

Amplifying longwave pattern will commence with a deep synoptic trough and cold front driving down Friday night into early Saturday.
The low pressure system at the surface and aloft will be well north, into the northern Plains to Great Lakes and Canada. However, this will drive the cold front into the area late Saturday evening into Sunday. There will be enough convergence and deeper moisture (1.6 to 1.8 inches) to bring in decent rain and storm coverage (50 to 70 percent). This will bring good beneficial rains, but less than an inch, which will not make a huge dent in the ongoing drought concerns. Cannot rule out a few stronger storms but confidence in severe storms is on the low side.

Anomalous surface high around 1025mb will drive in much cooler and dry weather across the area in the wake of the frontal passage.
Temps will be seasonably cool into late weekend and early next week (i.e. lows in the mid to upper 40s Sunday night into Monday, with highs generally in low to mid 70s through Tuesday). /DC/

AVIATION
(00Z TAFS)
Issued at 636 PM CDT Wed Apr 15 2026

VFR conditions wl prevail until after 09Z when IFR/LIFR vsbys wl develop in the se. MVFR cigs wl also begin developing sw and cntrl after 09Z. The vsby wl improve by 15Z but the MVFR cigs wl take until 18Z to improve. VFR conditions are expected Thu aftn through the end of the TAF period. /22/

PRELIMINARY POINT TEMPS/POPS
Jackson 63 86 64 88 / 0 10 0 0 Meridian 61 86 62 88 / 0 0 0 0 Vicksburg 63 87 64 88 / 0 10 0 0 Hattiesburg 62 87 62 88 / 0 0 0 0 Natchez 64 87 64 88 / 0 10 0 0 Greenville 66 85 67 88 / 10 20 10 0 Greenwood 66 85 66 89 / 0 20 10 0

JAN WATCHES/WARNINGS/ADVISORIES
MS...Dense Fog Advisory from 3 AM to 9 AM CDT Thursday for MSZ056>058- 063>066-072>074.

LA...None.
AR...None.