176
FXUS64 KJAN 100100 AAA
AFDJAN
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE JACKSON MS
800 PM CDT THU JUL 9 2026
..NEW AVIATION
KEY MESSAGES
- DANGEROUS LEVELS (LIMITED TO ELEVATED) OF HEAT WILL RETURN
THURSDAY AND PERSIST INTO THE WEEKEND.
DISCUSSION
ISSUED AT 149 PM CDT THU JUL 9 2026
PERSISTENT SUB-TROPICAL RIDGING STRETCHING ACROSS THE SOUTHWEST WILL
MAINTAIN ABNORMAL HEAT AND HUMIDITY THROUGH THE END OF THE
WORKWEEK, THE INCLUSION OF A HEAT ADVISORY WILL REMAIN IN EFFECT
FOR BOLIVAR/LEFLORE/SUNFLOWER/WASHINGTON THROUGH 8PM TONIGHT.
AFTERNOON HIGH TEMPERATURES WILL REMAIN A FEW DEGREES ABOVE CLIMO
NORMALS, COMBINED WITH HOTTER THAN NORMAL OVERNIGHT LOWS AND HIGH
HUMIDITY, WE WILL CONTINUE TO INDICATE THE RISK FOR ELEVATED
(LEVEL 2/4) AND LIMITED (LEVEL 1/4) RISK AREAS FOR DANGEROUS HEAT
STRESS IN THE GWHO INTO THIS WEEKEND. FOR TODAY AND TOMORROW A
BROAD AREA OF LOW-LEVEL RIDGING WILL KEEP THIS WARM AIRMASS IN
PLACE, RESULTING IN A TYPICAL PATTERN OF DIURNAL ISOLATED TO
SCATTERED AFTERNOON CONVECTION./KP/
SATURDAY THROUGH WEDNESDAY:
A POTENT UPPER-LVL RIDGE WILL BUILD AND TRAVERSE OVER THE NORTHERN
PLAINS, RESULTING IN DOWNSTREAM TROUGHING OVER THE MID-MS VALLEY.
THE TROUGH WILL SLOWLY PUSH A FRONTAL BOUNDARY TOWARDS THE SOUTHEAST
THROUGH THE WEEKEND AND INTO NEXT WEEK. AS THE BOUNDARY PROGRESS
TOWARDS THE AREA, RAIN CHANCES WILL BE LIKELY TO WIDESPREAD (70-85%)
WITH THE GREATEST COVERAGE ON SUNDAY AND MONDAY. RAIN WILL STICK
AROUND THROUGH MID- WEEK AS THE BOUNDARY GRADUALLY MOVES OVER THE
AREA. WITH THE ONGOING RAIN POTENTIAL, HEAT RELIEF IS EXPECTED AS
HEAT INDICES DROP BELOW 105 DEGREES.
AVIATION
(00Z TAFS)
ISSUED AT 759 PM CDT THU JUL 9 2026
VFR CONDITIONS AND WINDS FROM THE SOUTH GENERALLY LESS THAN 10 KTS
EXPECTED TO PREVAIL AT THE TAF SITES THROUGH THE PERIOD. /NF/
PRELIMINARY POINT TEMPS/POPS
JACKSON 75 94 75 93 / 10 0 10 20
MERIDIAN 74 94 75 94 / 20 10 10 40
VICKSBURG 76 94 76 94 / 10 0 10 10
HATTIESBURG 75 95 76 94 / 20 20 10 60
NATCHEZ 75 95 75 94 / 0 10 10 40
GREENVILLE 76 95 77 94 / 0 0 0 20
GREENWOOD 76 95 76 94 / 0 0 10 40
JAN WATCHES/WARNINGS/ADVISORIES
MS...HEAT ADVISORY UNTIL 8 PM CDT THIS EVENING FOR MSZ018-019-025-034.
LA...NONE.
AR...NONE.
KP/NF
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