850  
FXUS64 KJAN 251831 AAA  
AFDJAN  
 
AREA FORECAST DISCUSSION...UPDATED  
NATIONAL WEATHER SERVICE JACKSON MS  
131 PM CDT MON MAY 25 2026  
   
..NEW AVIATION  
 
   
KEY MESSAGES  
 
 
- ISOLATED SEVERE STORMS ARE POSSIBLE IN THE EAST THROUGH EARLY  
AFTERNOON.  
 
- PERIODS OF HEAVY RAINFALL AND FLASH FLOODING WILL BE POSSIBLE  
THROUGHOUT THIS WEEK.  
 
 
   
MESOSCALE UPDATE  
 
ISSUED AT 901 AM CDT MON MAY 25 2026  
 
THE FORECAST HAS BEEN UPDATED TO INCLUDE THE POTENTIAL FOR  
ISOLATED SEVERE THUNDERSTORMS FROM NOW THROUGH EARLY AFTERNOON  
OVER PORTIONS OF EAST MISSISSIPPI. DAMAGING WIND GUSTS WILL BE THE  
PRIMARY HAZARD ALTHOUGH A BRIEF TORNADO OR TWO CANNOT BE RULED  
OUT. IN ADDITION LOCALLY HEAVY RAINFALL WILL ACCOMPANY THE  
STRONGEST STORMS. AN MCV WAS NOTED SPINNING OVER NORTHEAST LAMAR  
AND NORTHWEST FOREST COUNTIES. THIS MCV IS EXPECTED TO TRACK NORTH  
NORTHEAST TODAY AND COMBINE WITH OUR WARM MOIST AIRMASS TO SUPPORT  
THE STRONG TO SEVERE CONVECTION. PROVIDED THE MCV TRACKS AS  
EXPECTED IT SHOULD SHIFT INTO ALABAMA SOUTH OF COLUMBUS ENDING THE  
POTENTIAL FOR SEVERE STORM DEVELOPMENT IN OUR CWA. A "LIMITED"  
THREAT FOR FLASH FLOODING REMAINS OVER THE WHOLE CWA BUT THE  
GREATEST POTENTIAL FOR ANY FLASH FLOODING WILL BE OVER EAST  
MISSISSIPPI INTO EARLY AFTERNOON. /22/  
 
 
   
DISCUSSION  
 
ISSUED AT 306 AM CDT MON MAY 25 2026  
 
MEMORIAL DAY THROUGH SUNDAY...  
 
EARLY MORNING GUIDANCE CONTINUES TO SHOW A WARM MOIST AIRMASS OVER  
THE SOUTHEAST CONUS WHICH WILL HELP FUEL THE DEVELOPMENT OF SHOWER  
AND STORMS ACROSS THE AREA. A QUICK LOOK AT LOCAL RADAR SCANS SHOWS  
SCATTERED SHOWERS ALONG THE GULF CURRENTLY TRACKING NORTH TOWARDS  
PORTIONS OF SOUTHEAST MS WITH QUIET WEATHER CONDITIONS ELSEWHERE.  
LATEST SATELLITE IMAGERY SHOWS THE SHORTWAVE TROUGH AXIS OVER EAST  
TENNESSEE, WITH THE WEAK CUTOFF LOW SLOWLY DRIFTING EAST ACROSS  
NORTHEAST LOUISIANA. THIS COMBINED WITH AFTERNOON HIGHS PEAKING IN  
THE LOW 80S AREAWIDE TODAY WILL ALLOW FOR SCATTERED TO NUMEROUS  
SHOWERS AND STORMS TO DEVELOP ACROSS OUR AREA THIS AFTERNOON WITH  
HIGHER RAIN CHANCES (POPS UP TO 80%) OVER EAST AND SOUTHEAST  
PORTIONS OF OUR CWA. PWATS ARE EXPECTED TO INCREASE TO NEAR TWO  
INCHES AND SUPPORT LOCALLY HEAVY RAINFALL AT TIMES. NO CHANGES HAVE  
BEEN MADE TO THE FLOOD GRAPHIC FOR TODAY AND A "LIMITED" THREAT FOR  
LOCALIZED FLASH FLOODING WILL BE CONTINUE TO BE ADVERTISED FOR OUR  
ENTIRE FORECAST AREA. WILL REASSESS PRECIP TRENDS DURING THE  
AFTERNOON FORECAST PACKAGE LATER TODAY TO TO SEE IF A "ELEVATED"  
RISK MAY BE NEEDED. IF AN "ELEVATED" RISK IS INTRODUCED FOR OUR  
AREA, IT WILL MAINLY BE FOR PORTIONS OF EAST AND SOUTHEAST MS.  
 
HEAVY RAINFALL ALONG WITH THE POTENTIAL FOR LOCALIZED FLASH FLOODING  
WILL CONTINUE TO BE THE PRIMARY FOCUS THROUGH THE LONG TERM PERIOD.  
MODEL CONSENSUS STILL SHOWS THAT TUESDAY-THURSDAY TIMEFRAME WILL  
HAVE THE BEST POTENTIAL FOR SCATTERED TO NUMEROUS STORMS ACROSS OUR  
CWA. DURING THIS TIME FRAME, A REINVIGORATED WESTERN CONUS TROUGH  
WILL RESULT IN MORE FAVORABLE ORIENTATION OF WATER VAPOR TRANSPORT  
INTO OUR FORECAST AREA. FORECAST CONFIDENCE REGARDING THE OVERALL  
FLOOD THREAT IS STILL NOT ALL THAT GREAT AT THIS TIME GIVEN RECENT  
GUIDANCE INCONSISTENCIES. WITH THAT IN MIND, THE INGREDIENTS FOR  
HEAVY RAINFALL, INCLUDING THE POTENTIAL FOR TRAINING STORMS TO  
DEVELOP IN A VERY WARM MOIST AIRMASS, AND FAIRLY HIGH SOIL MOISTURE  
REMAIN IN OUR REGION. HIGHER THAN NORMAL RAIN CHANCES AND TYPICAL  
LATE MAY TEMPERATURES WITH HIGHS PEAKING INTO THE 80S WILL BE  
POSSIBLE EACH DAY AS WE GO THROUGH MID/LATE WEEK. STORM CHANCES WILL  
CONTINUE ACROSS THE AREA AS WE HEAD INTO THE WEEKEND. /CR/  
 
 
   
AVIATION  
 
(18Z TAFS)  
ISSUED AT 124 PM CDT MON MAY 25 2026  
 
RADARS WERE SHOWING SHRA/TSRA OVER THE EASTERN HALF OF THE AREA  
RESULTING IN LOWER FLIGHT RESTRICTIONS. VFR CONDITIONS WILL  
CONTINUE IN THE WEST WITH ISOLD SHRA/TSRA PSBL THIS AFTN. THE  
SHRA/TSRA ACTIVITY WL GRADUALLY DISSIPATE AFTER 00Z TUE AND VFR  
CONDITIONS ARE EXPECTED UNTIL AFTER 06Z. AFTER 06Z MVFR CIGS ARE  
EXPECTED TO DEVELOP THEN LOWER TO IFR BY 11Z. THE IFR CIGS WL  
IMPROVE TO MVFR BY 16Z BUT MVFR CIGS WILL PREVAIL THROUGH THE END  
OF THE TAF PERIOD. /22/  
 
 
   
PRELIMINARY POINT TEMPS/POPS  
 
JACKSON 81 68 83 70 / 70 30 60 30  
MERIDIAN 80 68 81 69 / 100 50 80 30  
VICKSBURG 82 67 84 70 / 70 40 60 30  
HATTIESBURG 80 69 82 70 / 100 40 90 30  
NATCHEZ 82 68 85 71 / 60 40 60 40  
GREENVILLE 82 67 84 69 / 50 30 60 30  
GREENWOOD 82 67 84 70 / 50 20 50 40  
 
 
   
JAN WATCHES/WARNINGS/ADVISORIES  
 
MS...NONE.  
LA...NONE.  
AR...NONE.  
 
 
 
 
22/CR/22  
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