139  
FXUS64 KJAN 301830 AAA  
AFDJAN  
 
AREA FORECAST DISCUSSION...UPDATED  
NATIONAL WEATHER SERVICE JACKSON MS  
130 PM CDT MON JUN 30 2025  
   
..NEW AVIATION  
 
   
DISCUSSION  
 
ISSUED AT 101 PM CDT MON JUN 30 2025  
 
TONIGHT THROUGH SUNDAY...HIGH PRESSURE ALOFT WILL STEADILY SLIDE  
FURTHER EAST AND DEEPER INTO THE FORECAST AREA THROUGHOUT THE WORK  
WEEK AND INTO THE UPCOMING HOLIDAY WEEKEND. BY MID-WEEK, A TROUGH  
TO THE NORTH WILL SEND A COLD FRONT FURTHER SOUTH AND INTO THE CWA  
THROUGH THE END OF THE WORK WEEK. AS THE FRONT'S MID/UPPER LEVEL  
SUPPORT SHIFTS EAST AND ALONG THE EAST COAST, THE FRONT WILL  
ESSENTIALLY HANG UP AND STALL JUST SOUTH OF NORTH CENTRAL GULF COAST  
INTO THE WEEKEND.  
 
AHEAD OF THE FRONT, HOT AND VERY HUMID CONDITIONS WILL CONTINUE TO  
PREVAIL ACROSS THE FORECAST AREA. THIS AFTERNOON, A GOOD COVERAGE  
OF SHOWERS AND STORMS CAN BE EXPECTED, ESPECIALLY ACROSS EASTERN  
PORTIONS OF THE AREA ON THE EASTERN PERIPHERY OF THE AFOREMENTIONED  
HIGH ALOFT. SOME OF THE MORE INTENSE STORMS DURING THIS TIME WILL  
BE CAPABLE OF PRODUCING GUSTY WINDS, BUT FREQUENT LIGHTNING AND  
HEAVY DOWNPOURS WILL BE POSSIBLE WILL ALL STORMS THAT DEVELOP. THEN  
ON TUESDAY, WITH THE ADDITION OF SOME BETTER FORCING AS THE FRONT  
DROPS CLOSER TO THE CWA, ALONG WITH THE ALREADY MOIST AND UNSTABLE  
AIRMASS, A "MARGINAL RISK" FOR ISOLATED SEVERE STORMS WILL EXIST  
ACROSS THE MAJORITY OF THE AREA. DAMAGING WIND GUSTS WILL BE THE  
PRIMARY CONCERN WITH ANY SEVERE STORMS. THIS ACTIVITY WILL BEGIN TO  
WEAKEN AND WANE IN COVERAGE AFTER SUNSET EACH EVENING.  
 
AS THE FRONT PUSHES SOUTH THROUGH THE FORECAST AREA WEDNESDAY, AND  
REMAINS SOUTH OF THE CWA INTO THE WEEKEND, SOME SLIGHTLY DRIER AIR  
WILL SEEP INTO THE REGION. CHANCES FOR AFTERNOON AND EVENING  
SHOWERS AND STORMS WILL ALSO BE SHUNTED FURTHER SOUTH AND AHEAD OF  
THE FRONT. DESPITE THIS DRIER AIR ADVECTING INTO THE REGION, THE  
LESSER COVERAGE OF BOTH CONVECTION AND CLOUDS EACH DAY THROUGH THE  
WEEKEND, WILL RESULT IN HOTTER AFTERNOON TEMPERATURES AS HIGHS WILL  
EVENTUALLY PEAK INTO THE MID AND UPPER 90S AREAWIDE. ONCE AGAIN,  
THIS COULD RESULT IN ANOTHER ROUND OF POTENTIAL "HEAT ADVISORIES"  
PORTIONS OF, IF NOT ALL OF, THE FORECAST AREA SATURDAY INTO SUNDAY.  
SPEAKING OF SUNDAY, SOME SUBTLE AMOUNTS OF MOISTURE WILL BEGIN  
INCREASING ACROSS THE REGION, RESULTING IN A FEW MORE SHOWERS AND  
STORMS DEVELOPING ACROSS THE AREA IN THE HEAT OF THE AFTERNOON. /19/  
 
 
   
AVIATION  
 
(18Z TAFS)  
ISSUED AT 129 PM CDT MON JUN 30 2025  
 
VFR CONDITIONS TO BEGIN THE TAF PERIOD AT ALL SITES, HOWEVER  
ISOLATED TO SCATTERED SHRA AND TSRA THROUGH AROUND 01Z TUESDAY  
COULD BRING VARIABLE VISIBILITY AND CEILINGS. INCREASING CHANCES  
FOR LOW STRATUS WITH MVFR OR IFR CEILINGS AT EASTERN MS SITES  
AFTER 09Z, LIFTING AND MIXING BACK INTO VFR RANGE BY 15Z. /NF/  
 
 
   
PRELIMINARY POINT TEMPS/POPS  
 
JACKSON 74 91 73 91 / 20 70 30 20  
MERIDIAN 72 90 71 90 / 20 70 30 20  
VICKSBURG 75 93 73 92 / 20 60 20 20  
HATTIESBURG 74 93 73 94 / 30 80 30 40  
NATCHEZ 74 91 73 90 / 20 60 20 30  
GREENVILLE 74 90 73 91 / 30 40 10 20  
GREENWOOD 74 90 72 92 / 20 60 10 20  
 
 
   
JAN WATCHES/WARNINGS/ADVISORIES  
 
MS...HEAT ADVISORY UNTIL 7 PM CDT THIS EVENING FOR MSZ018-019-025-034-  
035-040-041-047-053.  
 
LA...HEAT ADVISORY UNTIL 7 PM CDT THIS EVENING FOR LAZ008-009-016-025.  
 
AR...HEAT ADVISORY UNTIL 7 PM CDT THIS EVENING FOR ARZ074-075.  
 
 
 
 
 
06/19  
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