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Levens Addition, Louisiana Weather Forecast Discussion

152
FXUS64 KJAN 200525
AFDJAN

Area Forecast Discussion National Weather Service Jackson MS 1225 AM CDT Sat Sep 20 2025

...New AVIATION...

.MESOSCALE UPDATE... Issued at 943 PM CDT Fri Sep 19 2025

The convection today was still noted along and south of our Highway 84 corridor. This activity was dissipating but being sustained along outflow boundary interactions. Once this convection dissipates by midnight, no additional convection is anticipated tonight. Temperatures were rain cooled below forecast minimums across portions of our north and the forecast minimums were adjusted. Warmer than normal temperatures are still expected areawide. /22/

&&

.DISCUSSION... Issued at 104 PM CDT Fri Sep 19 2025

Today & Tonight...

Upstream convection has unexpectedly stalled out just to our northwest, while simultaneously deepening. The current thinking is that once the supporting jet begins to shift, this should allow for those showers and thunderstorms to finally make their way into our area, especially along the ArkLaMiss Delta region this afternoon and could persist a couple of hours after sunset.

Should we receive those showers in the Delta and northern reaches of the area, fog/mist development will be possible in those areas. High surface moisture and low temperatures bottoming out in the mid 60s will allow for short lived thermal cross-over just before and after sunrise.

Through the Weekend...

Tomorrow and Sunday the forecast area may be more suppressed below upper-level shortwave ridging, but moisture values should still support at least a few isolated showers or storms with daytime heating.

Through Next Week...

The current pattern will break down over the next few days, resulting in a more progressive zonal flow pattern over the CONUS through the next work week. A few low pressure systems moving through the region and deeper moisture pooled in the Deep South may actually yield some heavy rainfall potential before the week is over. /OAJ/

&&

.AVIATION... (06Z TAFS) Issued at 1225 AM CDT Sat Sep 20 2025

Several northern TAF sites (mainly GLH, GWO, and GTR) could see a brief drop in visibility down to MVFR ceilings by 09Z Saturday due to patchy fog. Visibilities will improve to VFR conditions across northern sites by 13Z Saturday. Otherwise, VFR conditions will prevail across other TAF sites through the period. /CR/

&&

.PRELIMINARY POINT TEMPS/POPS... Jackson 70 94 70 92 / 0 10 10 10 Meridian 68 94 67 92 / 0 10 0 0 Vicksburg 70 94 69 93 / 0 10 10 10 Hattiesburg 70 95 70 94 / 0 10 0 0 Natchez 69 94 68 92 / 0 10 0 10 Greenville 69 94 69 92 / 0 10 10 20 Greenwood 69 95 67 93 / 0 10 10 10

&&

.JAN WATCHES/WARNINGS/ADVISORIES... MS...None. LA...None. AR...None. &&

$$

22/OAJ/CR

NWS JAN Office Area Forecast Discussion

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