069
FXUS64 KJAN 021732
AFDJAN
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSON MS
1232 PM CDT WED SEP 2 2026
..NEW AVIATION
KEY MESSAGES
- DANGEROUS HEAT STRESS WILL PERSIST ACROSS THE FORECAST AREA THIS
WEEK.
- POTENTIAL FOR THUNDERSTORMS AND HEAVY RAIN WILL INCREASE LATER
THIS WEEK.
DISCUSSION
ISSUED AT 211 AM CDT WED SEP 2 2026
THROUGH EARLY NEXT WEEK...
RIDGE DOMINANCE WILL MAINTAIN A SUMMER REGIME THROUGH THE PERIOD
WHICH WILL CONTINUE TO SUPPORT HEAT ADVISORY CRITERIA THIS WEEK. AN
AREAWIDE HEAT ADVISORY IS IN EFFECT TODAY THROUGH 7 PM. HEAT
ADVISORIES WILL LIKELY BE NEEDED THROUGHOUT THE REST OF THE WEEK AS
WELL, BUT WITH CONVECTION FORECAST, THIS WILL HAVE TO BE ASSESSED
DAY TO DAY. A PLUME OF RICH MOISTURE ASSOCIATED WITH A DISTURBANCE
ROUNDING THE SOUTHERN FLANK OF THE RIDGE FROM THE EAST WILL PROVIDE
AN ENVIRONMENT FOR EFFICIENT RAINFALL, SO LOCALIZED FLASH FLOODING
CANNOT BE RULED OUT WITHIN ANY CONVECTIVE STORMS. THE BIGGEST
OPPORTUNITY FOR HEAVY RAINFALL LOOKS TO BE FRIDAY WHERE VECTORS
FAVOR SLOW STORM MOTIONS AND BACKBUILDING. THE COVERAGE OF
CONVECTION HOWEVER IS A LITTLE UNCERTAIN. GIVEN THE ENVIRONMENT,
HAVE DECIDED TO INTRODUCE A LIMITED HAZARD GRAPHIC AT THIS TIME.
RAIN CHANCES WILL CONTINUE AS THE RIDGE WEAKENS INTO THE WEEKEND
INTO EARLY NEXT WEEK. THIS SHOULD PROVIDE RELIEF FROM THE HEAT.
/SAS/
AVIATION
(18Z TAFS)
ISSUED AT 1230 PM CDT WED SEP 2 2026
VFR CONDITIONS WILL PREVAIL THROUGH THE TAF PERIOD. WINDS WILL BE
LIGHT AND SOUTHERLY TO BEGIN THE PERIOD, SHIFTING OUT OF THE
NORTH AROUND 12Z THURSDAY./KP/
PRELIMINARY POINT TEMPS/POPS
JACKSON 74 97 74 94 / 0 20 10 60
MERIDIAN 75 99 74 95 / 0 10 10 60
VICKSBURG 74 95 73 94 / 0 10 10 60
HATTIESBURG 74 96 74 93 / 10 30 20 90
NATCHEZ 73 96 74 94 / 0 20 10 70
GREENVILLE 76 97 75 98 / 0 10 0 30
GREENWOOD 75 98 74 97 / 0 30 0 30
JAN WATCHES/WARNINGS/ADVISORIES
MS...HEAT ADVISORY UNTIL 7 PM CDT THIS EVENING FOR MSZ018-019-025>066-
072>074.
HEAT ADVISORY FROM NOON TO 7 PM CDT THURSDAY 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 THURSDAY 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 THURSDAY FOR ARZ074-075.
SAS20/NF
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