527 FXUS64 KJAN 060735 AFDJANArea Forecast Discussion National Weather Service Jackson MS 235 AM CDT Sat Sep 6 2025
...New DISCUSSION...
.DISCUSSION... Issued at 232 AM CDT Sat Sep 6 2025
Today...A cold front dropping southeast through the forecast area through this afternoon, will result in showers and storms affecting the forecast area through mainly the morning and early afternoon hours. With cooler drier air over-running the CWA through the course of the morning, convection is forecast to dissipate across the area through the afternoon, despite the front continuing its southeast trek through the area. This scenario looks to keep the better rain chances confined to mainly northern and central portions of the forecast area today.
High pressure will build into the region in the wake of the front as it clears the CWA late in the afternoon. The resulting advecting cooler drier airmass into the region will result in a wide array of high temperatures across the forecast area today. Therefore, look for them to range from the upper 70s across the Delta to the lower 90s across the Pine Belt region. /19/
Saturday Night through next Friday...The overall forecast for the long term period remains on track with no adjustments made to the overall forecast. A few lingering showers will be possible across a good portion of our forecast area as near term guidance from both the GFS and the Euro show the cold front tracking southward towards the Gulf Coast by Saturday evening. Quiet weather conditions will dominate our forecast heading into the overnight period as high pressure builds into the region. Areas north of I-20 will see nighttime temperatures in the upper 50s to low 60s. Elsewhere, areas long and south of I-20 will see overnight lows in the mid 60s. Looking ahead into Sunday, slightly cooler and drier conditions will continue to advect south into the CWA thanks to north to northeast flow. Overall, quiet weather conditions with slightly normal late summer conditions will exist across our forecast area Sunday through Monday night.
The remainder of the extended period will remain generally quiet Tuesday through Thursday. Global guidance continues to show mid/upper level troughing beginning to slowly slide east across the area through Thursday evening. This will allow for ridging aloft to gradually build into the region from the west. Regarding the rain chances, portions of southeast MS could see a slight chance of scattered showers by Tuesday afternoon, with afternoon PoPs between 15-20%. Ridging aloft will continue across our CWA Friday through the weekend with afternoon highs peaking into the low 90s areawide. /CR/
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.AVIATION... (06Z TAFS) Issued at 1225 AM CDT Sat Sep 6 2025
VFR flight categories will prevail at area TAF sites over the next few hours. As a cold front and convection associated with it begin moving into the Delta region between 07-08Z, flight categories will begin deteriorating to at least MVFR status, as a result of lowering ceilings and degraded visibilities when and if convection is observed on-station. The front will sink southeast through the area during the course of the day, with winds becoming northerly and a few gusts between 15-18 knots possible later this morning into early this afternoon. As the drier air stabilizes our airmass through the morning, convection is currently forecast to erode from late morning through mid-afternoon. This will allow for a return to VFR categories areawide by this evening. /19/
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.PRELIMINARY POINT TEMPS/POPS... Jackson 84 66 84 60 / 60 10 0 0 Meridian 88 65 84 60 / 40 10 0 0 Vicksburg 82 65 84 60 / 70 10 0 0 Hattiesburg 93 69 88 63 / 20 10 0 0 Natchez 85 66 84 61 / 50 10 10 0 Greenville 77 61 84 57 / 60 10 0 0 Greenwood 79 62 85 57 / 60 10 0 0
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.JAN WATCHES/WARNINGS/ADVISORIES... MS...None. LA...None. AR...None. &&
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19/CR
NWS JAN Office Area Forecast Discussion