584  
FXUS63 KDMX 092330  
AFDDMX  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE DES MOINES IA  
630 PM CDT MON JUN 9 2025  
 
...UPDATED FOR THE 00Z AVIATION DISCUSSION...  
   
KEY MESSAGES  
 
- AREAS OF SMOKE TO PERSIST TONIGHT  
 
- NOTICEABLY WARMER WEDNESDAY  
 
- NEXT CHANCE (60-70 PERCENT) FOR MORE ORGANIZED, WIDESPREAD  
PRECIPITATION WEDNESDAY AFTERNOON, WEDNESDAY NIGHT & INTO  
THURSDAY  
 
 
   
DISCUSSION  
 
ISSUED AT 232 PM CDT SUN JUN 8 2025  
 
MAIN FORECAST CONCERN TODAY CENTERS ON THE MID TO LATE WEEK  
SYSTEM.  
 
UPPER LOW IS FINALLY DEPARTING ACROSS THE GREAT LAKES, WITH THE  
PATTERN ADJUSTING TO A MORE ZONAL FLOW OVER THE MIDWEST. AS THE  
SURFACE RIDGE SLIDES OFF TO THE SOUTH AND EAST TUESDAY, A WARM  
FRONT SETS UP IN ITS WAKE OVER NORTHERN IOWA. THIS FRONT WILL  
PROVIDE THE INITIAL FOCUS FOR STORMS WEDNESDAY. GIVEN THE  
AVAILABLE INSTABILITY NEAR AND ESPECIALLY SOUTH OF THE BOUNDARY,  
THUNDERSTORMS ARE LIKELY. GIVEN THE INSTABILITY, COULD SEE SOME  
EMBEDDED SEVERE STORMS AS WELL. THE FRONT IS EXPECTED TO LINGER  
IN THE VICINITY OF NORTHERN IOWA/SOUTHERN MINNESOTA THROUGH  
THURSDAY, KEEPING THE RAIN CHANCES AROUND THROUGH THE PERIOD.  
THE DETAILS FOR THURSDAY DEPEND LARGELY ON THE POSITION OF THE  
FRONT AND ANY REMNANT OUTFLOW BOUNDARIES FROM CONVECTION THE  
DAY/NIGHT BEFORE. GIVEN THE ZONAL FLOW ALOFT ALONG THE BOUNDARY  
AND AVAILABLE MOISTURE, AREAS NEAR THE FRONT AND AFOREMENTIONED  
BOUNDARIES WILL NEED CAREFUL MONITORING FOR HEAVY RAIN AND  
FLOODING POTENTIAL.  
 
MEANWHILE, ENERGY CURRENTLY OVER SOUTHERN CALIFORNIA IS  
FORECAST TO MEANDER ACROSS THE SOUTHERN US AND POTENTIALLY  
INTERACT WITH THE NORTHERN STREAM BY LATE WEEK. LOTS OF SPREAD  
IN THE MODEL SOLUTIONS HOWEVER, SO CONFIDENCE REMAINS LOW AT  
THIS TIME ON THIS EVOLUTION.  
 
 
   
AVIATION /00Z TAFS THROUGH 00Z WEDNESDAY/  
 
ISSUED AT 627 PM CDT MON JUN 9 2025  
 
CELLULAR BKN TO SCT CLOUDS WITH BASES AT 5-7 KFT OVER IOWA WILL  
CONTINUE TO DISSIPATE THIS EVENING AND OVERNIGHT. SOME CUMULUS  
MAY REDEVELOP ON TUESDAY AROUND 5 KFT. BREEZY NORTHWEST WIND  
WILL DIMINISH THIS EVENING AND BECOME MORE WESTERLY. THE WIND  
MAY REACH 12 KT OR HIGHER SUSTAINED BY LATE MORNING AND INTO THE  
AFTERNOON TUESDAY AND TURN MORE WEST/SOUTHWEST.  
 
 
   
DMX WATCHES/WARNINGS/ADVISORIES  
 
NONE.  
 
 
 
 
 
DISCUSSION...DMD  
AVIATION...DONAVON  
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