076
FXUS64 KJAN 140745
AFDJAN
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSON MS
245 AM CDT MON SEP 14 2026
..NEW DISCUSSION
KEY MESSAGES
- DANGEROUS LEVELS OF HEAT STRESS ARE EXPECTED DURING THE LATE
MORNING AND AFTERNOON HOURS EARLY THIS WEEK. HEAT DANGER WILL
BEGIN TO DECREASE LATER IN THE WEEK.
DISCUSSION
ISSUED AT 245 AM CDT MON SEP 14 2026
THROUGH TUESDAY: HEAT IS STILL THE MAIN STORY FOR TODAY AS
MID/UPPER RIDGING BUILDS ACROSS THE REGION. HIGH TEMPERATURES WILL
CONTINUE TO REACH THE UPPER 90S UP TO AROUND 100 ACROSS THE
ARKLAMISS DELTA, WITH HEAT INDICES PEAKING IN THE 105-110F RANGE
AREAWIDE. BASED ON YESTERDAY'S OBSERVATIONS, THE HEAT ADVISORY HAS
BEEN EXPANDED TO INCLUDE THE ENTIRE FORECAST AREA FOR TODAY. AN
ADVISORY WILL LIKELY BE NEEDED AGAIN FOR A PORTION OF THE AREA
TOMORROW, HOWEVER, DRIER EASTERLY FLOW WILL BEGIN TO ARRIVE AND
THIS MAY BEGIN TO LIMIT HEAT STRESS FOR AREAS EAST OF I-55. GIVEN
CONSIDERABLE DEEP LAYER MOISTURE LINGERING ACROSS THE AREA,
ISOLATED TO SCATTERED AFTERNOON CONVECTION IS EXPECTED AGAIN
TODAY. A FEW OF THESE STORMS COULD AGAIN PRODUCE STRONG WIND
GUSTS. AS DRIER AIR BEGINS TO ARRIVE TOMORROW, COVERAGE IS
EXPECTED TO DECREASE.
WEDNESDAY THROUGH NEXT MONDAY: CONTINUING EASTERLY FLOW WILL
USHER IN A RELATIVELY DRIER AIRMASS THROUGH THE END OF THE WORK
WEEK. THIS AIRMASS WILL STILL SUPPORT HOT DAYS, WITH TEMPS STILL
APPROACHING THE TRIPLE DIGITS IN THE ARKLAMISS DELTA. BUT WITH
DEWPOINTS DROPPING INTO 60S AND PERHAPS THE 50S, HEAT STRESS WILL
BECOME LESS OF A CONCERN THROUGH THE END OF THE WEEK. IT IS STILL
POSSIBLE A HEAT ADVISORY MAY BE NEEDED FOR SOME AREAS MAINLY WEST
OF I-55 ON WEDNESDAY, BUT HEAT RELATED ALERTS ARE UNLIKELY FOR THE
REMAINDER OF THE WEEK. WHILE DAYS WILL STILL BE QUITE WARM WITH
ABOVE NORMAL TEMPS, MORNINGS WILL SEE TEMPS DIPPING INTO THE 60S
IN MANY AREAS. DEEP LAYER MOISTURE WILL BEGIN TO INCREASE AGAIN
THIS WEEKEND, WITH RETURNING POTENTIAL FOR DIURNAL CONVECTION EACH
DAY. THOUGH IT WILL STILL BE WARM, HIGH TEMPS ARE EXPECTED TO
REGRESS CLOSER TO SEASONAL NORMALS AROUND THE BEGINNING OF NEXT
WEEK. /DL/
AVIATION
(06Z TAFS)
ISSUED AT 1250 AM CDT MON SEP 14 2026
ISOLATED TO SCATTERED AFTN TSRA MAY RESULT IN LOWER FLIGHT
RESTRICTIONS OVER THE WEST AND CNTRL TAF SITES TODAY BUT AWAY FROM
ANY TSRA, VFR CONDITIONS WL CONTINUE TO PREVAIL THROUGH THE END OF
THE TAF PERIOD. /22/
PRELIMINARY POINT TEMPS/POPS
JACKSON 97 73 97 73 / 30 20 10 0
MERIDIAN 99 72 99 73 / 20 0 0 0
VICKSBURG 97 73 96 74 / 30 20 10 0
HATTIESBURG 97 74 97 74 / 20 0 10 0
NATCHEZ 96 73 96 73 / 50 20 10 0
GREENVILLE 99 74 99 75 / 30 20 10 0
GREENWOOD 99 73 100 74 / 20 20 0 0
JAN WATCHES/WARNINGS/ADVISORIES
MS...HEAT ADVISORY FROM 11 AM THIS MORNING TO 7 PM CDT THIS EVENING
FOR MSZ018-019-025>066-072>074.
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.
DL/22
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