505
FXUS64 KJAN 011827
AFDJAN
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSON MS
127 PM CDT TUE SEP 1 2026
..NEW DISCUSSION
KEY MESSAGES
- DANGEROUS HEAT STRESS WILL PERSIST ACROSS THE FORECAST AREA THIS
WEEK.
- RAIN CHANCES BEGIN INCREASING NORTHWARD THURSDAY, WITH CHANCES
EXPECTED AREAWIDE FRIDAY THROUGH THE LABOR DAY WEEKEND.
DISCUSSION
ISSUED AT 123 PM CDT TUE SEP 1 2026
TONIGHT THROUGH LABOR DAY...HIGH PRESSURE ALOFT AND AT THE SURFACE
WILL REMAIN IN PLACE ACROSS THE REGION THROUGH THE FORECAST PERIOD.
THUS, EXPECT A CONTINUATION OF HUMID CONDITIONS AND HOT
TEMPERATURES. HIGHS EACH AFTERNOON WILL WARM INTO THE MIDDLE AND
UPPER 90S. THIS, AS DEW POINTS MIX EACH DAY IN THE LOW AND MIDDLE
70S, WILL YIELD AFTERNOON HEAT INDEX VALUES ABOVE THE CENTURY MARK.
AS A RESULT, A PROLONGED PERIOD OF DANGEROUS HEAT STRESS IS
EXPECTED, WITH A "HEAT ADVISORY" AT A MINIMUM NEEDED FOR PORTIONS
OF, IF NOT ALL OF, THE FORECAST AREA EACH DAY.
OTHER THAN AN ISOLATED SHOWER OR STORM BEING OBSERVED IN THE SOUTH
AND IN THE VICINITY OF THE HIGHWAY 84 CORRIDOR TODAY THROUGH
WEDNESDAY, THE CWA OVERALL WILL REMAIN DRY. AS BETTER MOISTURE
WORKS NORTH INTO THE FORECAST AREA THURSDAY INTO LABOR DAY WEEKEND,
BETTER RAIN CHANCES WILL LIKEWISE SPREAD NORTHWARD INTO THE CWA.
THIS COULD BRING SOME TEMPORARY RELIEF FROM BOTH THE HEAT AND DRY
CONDITIONS ACROSS THE REGION, ESPECIALLY FRIDAY THROUGH LABOR DAY.
/19/
AVIATION
(18Z TAFS)
ISSUED AT 101 PM CDT TUE SEP 1 2026
VFR CONDITIONS WILL PERSIST THROUGHOUT THE FORECAST PERIOD. WINDS
WILL GENERALLY REMAIN LIGHT, HOWEVER GUSTS OF UP TO 15 MPH WILL
BE POSSIBLE AT TIMES THROUGH THIS EVENING./KP/
PRELIMINARY POINT TEMPS/POPS
JACKSON 75 96 75 97 / 0 10 10 30
MERIDIAN 75 99 75 98 / 0 0 10 10
VICKSBURG 74 95 75 96 / 0 0 0 20
HATTIESBURG 73 96 74 96 / 10 20 10 50
NATCHEZ 74 96 74 96 / 10 10 10 30
GREENVILLE 76 97 76 98 / 0 0 0 10
GREENWOOD 75 97 75 98 / 0 0 10 20
JAN WATCHES/WARNINGS/ADVISORIES
MS...HEAT ADVISORY UNTIL 7 PM CDT THIS EVENING FOR MSZ018-019-025>027-
034>036-040>043-047>049-053>055-059>064-072.
HEAT ADVISORY FROM NOON TO 7 PM CDT WEDNESDAY FOR MSZ018-019-
025>066-072>074.
LA...HEAT ADVISORY UNTIL 7 PM CDT THIS EVENING FOR LAZ007>009-015-016-
023>026.
HEAT ADVISORY FROM NOON TO 7 PM CDT WEDNESDAY FOR LAZ007>009-015-
016-023>026.
AR...HEAT ADVISORY UNTIL 7 PM CDT THIS EVENING FOR ARZ074-075.
HEAT ADVISORY FROM NOON TO 7 PM CDT WEDNESDAY FOR ARZ074-075.
19/KP
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