178
FXUS64 KJAN 090743
AFDJAN
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSON MS
243 AM CDT THU JUL 9 2026
..NEW DISCUSSION
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
(06Z TAFS)
ISSUED AT 1217 AM CDT THU JUL 9 2026
OVERALL, VFR FLIGHT CATEGORIES WILL PREVAIL AT AREA TAF SITES
OVER THE NEXT 24 HOURS. SOME PATCHY FOG AND LOW STRATUS, MAINLY
SOUTH OF THE INTERSTATE 20 CORRIDOR, COULD YIELD A 1-3 HOUR PERIOD
OF MVFR/IFR CATEGORIES AROUND DAY BREAK AT SITES WHERE OBSERVED.
CONDITIONS WILL BEGIN IMPROVING BACK TO VFR STATUS SHORTLY AFTER
SUNRISE, WITH ISOLATED TO SCATTERED CONVECTION . POSSIBLE IN AREAS
MAINLY EAST OF THE INTERSTATE 55 CORRIDOR. WINDS OVERNIGHT WILL
GENERALLY BE LIGHT FROM THE SOUTHWEST TO CALM. THESE WILL INCREASE
FROM THE SOUTHWEST BETWEEN 5-10 KNOTS BY LATE MORNING. /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.
SW/19
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