853
FXUS64 KJAN 091120 AAA
AFDJAN
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE JACKSON MS
620 AM 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 243 AM CDT THU JUL 9 2026
THURSDAY THROUGH NEXT WEDNESDAY:
THURSDAY THROUGH FRIDAY:
SUB-TROPICAL RIDGING WILL REMAIN OVER THE REGION, CONTINUING
DANGEROUS HEAT CONCERNS FOR THURSDAY AND FRIDAY. AFTERNOON
RAINFALL/CONVECTION WILL BE POSSIBLE ALONG/EAST OF I-55 THURSDAY
THEN DIMINISHING BY FRIDAY. A PATTERN CHANGE BEGINNING FRIDAY WILL
BRING RAIN CHANCES THROUGH THE REST OF THE EXTENDED FORECAST.
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 (70-85%) WILL BE GREATEST 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. /SW/
AVIATION
(12Z TAFS)
ISSUED AT 619 AM CDT THU JUL 9 2026
OVERALL, VFR FLIGHT CATEGORIES WILL PREVAIL AT AREA TAF SITES
THROUGH THIS 12Z FORECAST. ISOLATED TO SCATTERED CONVECTION THIS
AFTERNOON AND EVENING COULD RESULT IN A BRIEF DEGRADATION OF BOTH
CEILINGS AND VISIBILITIES AT SITES WHERE OBSERVED, MAINLY EAST OF
THE INTERSTATE 55 CORRIDOR, I.E. KGTR, KMEI, KPIB, & KHBG. WINDS
WILL INCREASE FROM THE SOUTHWEST BETWEEN 5-10 KNOTS BY LATE THIS
MORNING, AND CONTINUE AS SUCH THROUGH THE AFTERNOON HOURS. /19/
PRELIMINARY POINT TEMPS/POPS
JACKSON 93 74 94 75 / 10 10 10 10
MERIDIAN 93 74 94 75 / 30 10 10 10
VICKSBURG 94 76 94 76 / 10 0 0 0
HATTIESBURG 94 75 95 75 / 20 10 20 10
NATCHEZ 94 74 95 75 / 10 0 0 0
GREENVILLE 94 76 94 77 / 10 0 0 0
GREENWOOD 94 75 95 76 / 30 0 0 10
JAN WATCHES/WARNINGS/ADVISORIES
MS...NONE.
LA...NONE.
AR...NONE.
19
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