679  
FXUS63 KDMX 011129  
AFDDMX  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE DES MOINES IA  
629 AM CDT SAT AUG 1 2026  
 
...UPDATED FOR THE 12Z AVIATION DISCUSSION...  
   
KEY MESSAGES
 
 
- BLUSTERY WINDS TODAY WITH A FEW SHOWERS LINGERING OVER  
SOUTHEASTERN IOWA, OTHERWISE TURNING DRIER AND BRIGHTER.  
 
- SEASONABLE TEMPERATURES TODAY THROUGH AT LEAST MONDAY.  
 
- STORM CHANCES RETURN TUESDAY THROUGH THURSDAY.  
 

 
   
SHORT TERM /THROUGH SUNDAY/
 
 
ISSUED AT 1241 AM CDT SAT AUG 1 2026  
 
BLUSTERY CONDITIONS PREVAIL EARLY THIS MORNING ACROSS CENTRAL  
IOWA AND WHILE IT REMAINS HUMID, THE SOUND OF AUTUMN IS HEARD AS  
THE WIND BLOWS ITS WAY THROUGH THE TREES. THESE CONDITIONS ARE  
CAUSED BY 1005MB SURFACE LOW PRESSURE NEAR BURLINGTON WITH A  
TIGHT PRESSURE GRADIENT ON ITS NORTHWESTERN FLANK. CLOUDS ARE  
ALSO SPIRALING AROUND THIS LOW PER GOES-EAST NIGHTTIME  
MICROPHYSICS RGB IMAGERY WITH A MOSTLY CLOUDY SKY OVER MUCH OF  
OUR FORECAST AREA OF CENTRAL IOWA. THERE ARE ALSO A FEW  
SHOWERS ROTATING SOUTH OR SOUTHWESTWARD AROUND THIS LOW  
PRIMARILY EAST OF I-35 AND SOUTH OF HIGHWAY 30. THESE SPOTTY  
SHOWERS MAY LINGER OVER OUR FAR SOUTHEASTERN FORECAST AREA (E.G.  
OTTUMWA AND VICINITY) AFTER SUNRISE THROUGH PERHAPS MIDDAY.  
HOWEVER, AFTER THESE DISSIPATE AND MOVE AWAY, DRY WEATHER IS  
FORECAST THROUGH AT LEAST MONDAY STATEWIDE. CLOUDS WILL ALSO BE  
SHIFTING OFF TO THE EAST THROUGH THE DAY TODAY ALLOWING FOR A  
RETURN OF SUNSHINE TO ALL BUT PERHAPS EASTERN IOWA BEFORE  
SUNSET. HOWEVER, A HAZINESS TO THE SKY IS EXPECTED AS OUR  
NORTHERLY FLOW ALLOWS UPPER LEVEL WILDFIRE SMOKE TO SPREAD  
OVERHEAD. SURFACE WINDS WILL REMAIN BREEZY THROUGH THE DAY -  
STRONGEST OVER THE SOUTHEASTERN HALF IOWA WITH GUSTS UP TO  
AROUND 30 MPH - BEFORE DIMINISHING THIS EVENING. HIGH  
TEMPERATURES TODAY AND SUNDAY WILL BE WITHIN A FEW DEGREES OF  
80, WHICH WILL BE NEAR IF NOT A FEW DEGREES BELOW NORMAL FOR  
EARLY AUGUST. SUNDAY WILL FEATURE LIGHTER WINDS WITH UPPER LEVEL  
WILDFIRE SMOKE CONFINED TO MORE OF WESTERN IOWA.  
 

 
   
LONG TERM /SUNDAY NIGHT THROUGH FRIDAY/
 
 
ISSUED AT 254 PM CDT FRI JUL 31 2026  
 
PLEASANT AND DRY CONDITIONS CONTINUE ON SUNDAY AND MONDAY AS THE  
UPPER RIDGE BUILDS EASTWARD WITH TEMPERATURES IN THE UPPER 70S TO  
LOW 80S. ACTIVE WEATHER THEN RETURNS THROUGH MID NEXT WEEK AS A  
LONGWAVE TROUGH APPROACHES WITH SEVERAL WAVES MOVING THROUGH THE  
OVERARCHING UPPER LEVEL FLOW. THIS WILL RETURN PRECIPITATION CHANCES  
TO OUR AREA FROM TUESDAY NIGHT TO AROUND THURSDAY WITH THE PATTERN  
LOOKING TO REMAIN ACTIVE INTO NEXT WEEKEND. TEMPERATURES DON'T  
REALLY REBOUND KEEPING CONDITIONS FOR EARLY AUGUST LARGELY NICE AND  
IN THE 80S.  
 

 
   
AVIATION /12Z TAFS THROUGH 12Z SUNDAY/
 
 
ISSUED AT 629 AM CDT SAT AUG 1 2026  
 
MVFR CEILINGS ARE COMMON FROM ALO TO AMW TO CSQ AND POINTS EAST  
THIS MORNING WITH POCKETS OF IFR AS CLOUDS WRAP AROUND LOW  
PRESSURE EXITING THE STATE. LIGHT TO AT TIMES MODERATE SHOWERS  
ARE PERSISTING AND WILL IMPACT OTM THIS MORNING. LIGHTNING HAS  
BEEN QUITE MINIMAL SO HAVE JUST SHRA. FOR FOD/MCW, VFR  
CONDITIONS ARE EXPECTED TO PREVAIL AND THESE CONDITIONS WILL  
MOVE OVER THE REMAINDER OF THE TERMINALS LATER THIS MORNING OR  
AFTERNOON. BLUSTERY CONDITIONS WITH GUSTS BETWEEN 20 AND 30  
KNOTS WILL CONTINUE THIS MORNING AND GRADUALLY DIMINISH THIS  
AFTERNOON AND MORE SO INTO THIS EVENING.  
 

 
   
DMX WATCHES/WARNINGS/ADVISORIES
 
 
NONE.  
 

 
 

 
 
SHORT TERM...ANSORGE  
LONG TERM...05  
AVIATION...ANSORGE  
 
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