791
FXUS63 KDMX 011742
AFDDMX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE DES MOINES IA
1242 PM CDT SAT AUG 1 2026
...UPDATED FOR THE 18Z 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 /18Z TAFS THROUGH 18Z SUNDAY/
ISSUED AT 1234 PM CDT SAT AUG 1 2026
MVFR CIGS WILL CONTINUE TO AFFECT KOTM IN THE NEXT 3 HOURS,
BECOMING INCREASINGLY SCATTERED WITH TIME. OTHERWISE THE REST OF
THE AREA WILL BE VFR WITH A FEW CUMULUS DECK. MONITORING THE
POTENTIAL FOR FOG TONIGHT WHICH LOOKS MOST PROBABLE TO THE WEST
OF TERMINALS. CAN'T RULE OUT BRIEF RIVER VALLEY FOG AT KFOD AND
PATCHY FOG AT KALO AND KOTM, BUT THE CONFIDENCE REMAINS LOW
ENOUGH THAT THERE ARE NO MENTIONS IN THE TAF AT THIS TIME.
WHEREVER FOG DOES DEVELOP, IT WILL LIFT INTO A SUB-3KFT CUMULUS
DECK THAT COULD BRING A WINDOW OF MVFR IN THE LAST 6 HOURS OF
THIS PERIOD.
DMX WATCHES/WARNINGS/ADVISORIES
NONE.
SHORT TERM...ANSORGE
LONG TERM...05
AVIATION...JIMENEZ
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