251
FXUS63 KDVN 202311
AFDDVN
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
611 PM CDT TUE OCT 20 2026
KEY MESSAGES
- ABOVE NORMAL TEMPERATURES ARE FORECAST TO CONTINUE THIS WEEK
AND THERE IS A 55% CHANCE THEY THEY WILL CONTINUE THROUGH THE
END OF OCTOBER.
SHORT TERM /THROUGH WEDNESDAY NIGHT/
ISSUED AT 109 PM CDT TUE OCT 20 2026
RIDGING IS FORECAST TO CONTINUE TO BUILD NORTHWARD ACROSS IOWA
THROUGH THE DAY ON WEDNESDAY. SHORTWAVE ENERGY NEAR THE RIDGE
AXIS MAY BRING PERIODS OF CLOUDS THROUGH THE AREA ESPECIALLY
TONIGHT INTO WEDNESDAY MORNING. NUDGED TEMPERATURES DOWNWARD
BY 1 TO 2 DEGREES TONIGHT AND WEDNESDAY NIGHT BASED ON TRENDS
FROM THE PAST SEVERAL NIGHTS. BASED ON PERSISTENCE HIGH
TEMPERATURES ON WEDNESDAY WILL BE 1 TO 2 DEGREES WARMER THAN
TODAYS WITH SOUTHERLY WINDS AROUND 5 MPH.
LONG TERM /THURSDAY THROUGH TUESDAY/
ISSUED AT 109 PM CDT TUE OCT 20 2026
THURSDAY THROUGH SATURDAY, RIDGING IS FORECAST TO BUILD
NORTHWARD INTO SOUTHERN CANADA AS HIGH PRESSURE AT THE SURFACE
MOVES INTO THE MID ATLANTIC STATES. AS THE SURFACE HIGH MOVES
OFF SHORE FRIDAY INTO SATURDAY, THE PRESSURE GRADIENT ACROSS
THE MIDWEST WILL GRADUALLY TIGHTEN LEADING TO POTENTIALLY
BREEZY CONDITIONS FRIDAY INTO SATURDAY. HIGH TEMPERATURES WILL
GRADUALLY MODIFY EACH DAY WITH HIGHS IN THE 70S. CLOUD COVER
MAY ALSO INCREASE FRIDAY INTO SATURDAY AS A STORM SYSTEM
DEVELOPS TO OUR WEST.
SUNDAY THROUGH MONDAY, A 500 MB SHORTWAVE TROUGH IS FORECAST TO
DIG INTO THE UPPER MIDWEST. THIS PUSHES A COLD FRONT
SOUTHEASTWARD ACROSS THE AREA EARLY NEXT WEEK. THIS FRONT WILL
GRADUALLY BECOME PARALLEL TO THE FLOW AS IT MOVES SOUTHEASTWARD
EARLY NEXT WEEK CAUSING IT TO STALL OUT IN SOUTHERN IOWA OR
NORTHERN MISSOURI. THE NBM HAS 15 TO 25% CHANCE POPS SUNDAY
NIGHT THROUGH MONDAY ACROSS THE AREA. HIGH TEMPERATURES ON
SUNDAY REMAIN IN THE LOWER TO MID 70S AHEAD OF THE FRONT WITH
TEMPERATURES FALLING INTO THE 60S ON MONDAY BEHIND THE FRONT.
DESPITE COOLER HIGH TEMPERATURES, THESE REMAIN ABOVE NORMAL FOR
THE LAST WEEK OF OCTOBER WHEN HIGH TEMPERATURES ARE NORMALLY IN
THE MID TO UPPER 50S. RAINFALL AMOUNTS WILL BE LIGHT WITH LESS
THAN A TENTH OF AN INCH FOR RAINFALL.
AVIATION /00Z TAFS THROUGH 00Z WEDNESDAY/
ISSUED AT 611 PM CDT TUE OCT 20 2026
VFR CONDITIONS WILL CONTINUE AS AN AREA OF HIGH PRESSURE REMAINS
IN CONTROL OVER THE NEXT FEW DAYS. LIGHT SOUTHEAST WINDS THIS
EVENING WILL SLOWLY TURN MORE SOUTHWESTERLY DURING THE DAYLIGHT
HOURS WEDNESDAY, REMAINING LIGHT (GENERALLY 5 KNOTS OR LESS).
OUTSIDE OF SOME HIGH CIRRUS CLOUDS, SKC WILL BE ABUNDANT.
DVN WATCHES/WARNINGS/ADVISORIES
IA...NONE.
IL...NONE.
MO...NONE.
SHORT TERM...COUSINS
LONG TERM...COUSINS
AVIATION...SCHULTZ
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