501
FXUS64 KJAN 040553
AFDJAN
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSON MS
1253 AM CDT FRI SEP 4 2026
..NEW DISCUSSION, AVIATION
KEY MESSAGES
- DANGEROUS HEAT STRESS WILL PERSIST ACROSS PORTIONS OF THE
FORECAST AREA INTO NEXT WEEK.
- SHOWERS AND THUNDERSTORMS OVER THE NEXT FEW DAYS WILL BE CAPABLE
OF LOCALLY HEAVY DOWNPOURS AND STRONG GUSTY WINDS.
DISCUSSION
ISSUED AT 1234 AM CDT FRI SEP 4 2026
THE UPPER-LEVEL RIDGE WILL PIVOT TOWARD THE HIGH PLAINS TODAY INTO
TOMORROW, BUT HOT AND HUMID CONDITIONS WILL STILL PUSH HEAT INDEX
VALUES INTO THE 105-110 RANGE ACROSS MOST OF THE AREA. AN EASTERLY
WAVE BRINGING A RENEWED SURGE OF MOISTURE WILL SUPPORT SHOWER AND
THUNDERSTORM DEVELOPMENT EARLY ENOUGH IN THE PINE BELT OF
SOUTHEAST MISSISSIPPI TODAY THAT HEAT SHOULD BE LESS OF A CONCERN
THERE. TOMORROW LOOKS TO HAVE A SIMILAR SETUP, AND THEN THE RIDGE
AND NORTHWEST FLOW WILL SQUEEZE RAIN CHANCES CLOSER TO THE GULF
COAST. NORTH OF THE BETTER RAIN CHANCES, DAILY HEAT INDEX VALUES
COULD EVEN APPROACH OR EXCEED 110 DEGREES. FOR THE TIME BEING,
WILL MAINTAIN AN "ELEVATED" THREAT AREA FOR DANGEROUS HEAT STRESS
ON LOCAL HAZARDOUS WEATHER OUTLOOK GRAPHICS SUNDAY INTO EARLY
NEXT WEEK. /NF/
AVIATION
(06Z TAFS)
ISSUED AT 1234 AM CDT FRI SEP 4 2026
VFR CONDITIONS PREVAIL. SCATTERED TO BROKEN HIGH CLOUDS WILL BUILD
ACROSS THE AREA THIS MORNING FROM THE SOUTHEAST. THERE IS A MEDIUM
CHANCE (50-60%) FOR SHOWERS AND THUNDERSTORMS WITH GREATEST CHANCES
BETWEEN 4 AND 8 PM.
PRELIMINARY POINT TEMPS/POPS
JACKSON 95 73 94 73 / 30 20 50 20
MERIDIAN 97 73 94 73 / 20 20 50 20
VICKSBURG 94 72 93 73 / 30 20 40 10
HATTIESBURG 94 73 93 73 / 70 30 60 20
NATCHEZ 93 72 92 72 / 60 30 60 20
GREENVILLE 97 75 98 75 / 20 10 20 10
GREENWOOD 97 73 98 73 / 20 10 20 10
JAN WATCHES/WARNINGS/ADVISORIES
MS...HEAT ADVISORY FROM 11 AM THIS MORNING TO 7 PM CDT THIS EVENING
FOR MSZ018-019-025>054-059>062.
LA...HEAT ADVISORY FROM 11 AM THIS MORNING TO 7 PM CDT THIS EVENING
FOR LAZ007>009-015-016-023>026.
AR...HEAT ADVISORY FROM 11 AM THIS MORNING TO 7 PM CDT THIS EVENING
FOR ARZ074-075.
NF/SAS20
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