Area Forecast Discussion
Issued by NWS Jackson, MS
Issued by NWS Jackson, MS
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407 FXUS64 KJAN 120840 AFDJAN Area Forecast Discussion National Weather Service Jackson MS 340 AM CDT Wed Jun 12 2024 ...New DISCUSSION... .DISCUSSION... Issued at 339 AM CDT Wed Jun 12 2024 Today and tonight...Surface high pressure ridging and dry northeasterly flow will prevail across the ArkLaMs today and tonight. Highs today will mostly be in the mid to upper 80s, with overnight lows in the low to mid 60s./15/ Thursday through mid next week... Dry conditions will persist through the remainder of this week into the weekend under the influence of high pressure. Given this dry air in place, deep boundary layer mixing will likely lead to very warm temperatures, mid to upper 90s. By Saturday, high pressure over Texas moves overhead and 850/925 temps around 20/26 should yield widespread surface temperatures in the upper 90s, with some 100s possible as well. Conditions are being monitored and a heat advisory may eventually be needed. However, I hesitate to say this for Saturday as dry dewpoints will tend to mitigate heat threat a bit, despite the higher temperatures. This may change Sunday however with greater moisture, less mixing. Despite the slightly cooler temps Sunday, heat indices could be higher. By Sunday, high pressure shifts east and will start to wrap moisture back in. Given this, upper 90s near 100 temps will be confined to northern areas where drier air is in place and better mixing is likely. Further south across the Pine Belt, rain and storms will be possible in the presence of better moisture as a wave pushes across. This sets us up for a wetter week next week with greater moisture in its wake. Next week, high pressure shifts over the east CONUS resulting in deep southerly flow over our area, providing a steady stream of Gulf moisture. Tropical like moisture is possible with PWAT around 2.5 inches. With such moisture, heavy rain rates will be possible so flash flooding could be possible if trends hold./SAS/ && .AVIATION... (06Z TAFS) Issued at 1249 AM CDT Wed Jun 12 2024 VFR conditions and light winds will prevail at TAF sites through the period./15/ && .PRELIMINARY POINT TEMPS/POPS... Jackson 86 63 90 67 / 0 0 0 0 Meridian 88 63 94 67 / 0 0 0 0 Vicksburg 86 62 90 66 / 0 0 0 0 Hattiesburg 90 66 94 71 / 0 0 10 0 Natchez 86 63 89 67 / 0 0 0 0 Greenville 87 63 92 67 / 0 0 0 0 Greenwood 87 62 92 67 / 0 0 0 0 && .JAN WATCHES/WARNINGS/ADVISORIES... MS...None. LA...None. AR...None. && $$ 15/SAS