066
FXUS63 KIWX 231648
AFDIWX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1248 PM EDT FRI OCT 23 2026
KEY MESSAGES
- LOCALLY DENSE FOG POSSIBLE AGAIN EARLY SATURDAY MORNING,
ESPECIALLY NORTHEAST OF FORT WAYNE, IN.
- TRANQUIL FALL WEATHER CONTINUES WITH MILD TEMPERATURES, LIGHT
WINDS, AND SUNSHINE.
- NO RAIN CHANCES UNTIL LATE NEXT WEEK.
DISCUSSION
ISSUED AT 1247 PM EDT FRI OCT 23 2026
A LARGELY STAGNANT SYNOPTIC PATTERN CALLED AN OMEGA BLOCK WILL ALLOW
FOR MILD AND DRY CONDITIONS TO CONTINUE. UPPER AIR OBSERVATIONS
DEPICT A LARGE UPPER LEVEL RIDGE CONTINUING TO BUILD OVER THE
CENTRAL CONUS THIS MORNING; AS THIS FEATURE GRADUALLY CONTINUES
TO AMPLIFY IN THE COMING DAYS, IT WILL SHIFT EASTWARD OVER THE
GREAT LAKES. SINKING AIR UNDERNEATH THE UPPER LEVEL RIDGE WILL
RESULT OUR PROLONGED STRETCH OF DRY CONDITIONS, MILD
TEMPERATURES, AND LIGHT WINDS CONTINUING. HIGH TEMPERATURES WILL
BE IN THE UPPER 60S TO LOW 70S AND LOWS IN THE LOW TO MID 40S
EACH DAY. WITH THE OMEGA BLOCK EXPECTED TO BREAK DOWN BY THE
MIDDLE OF NEXT WEEK, THERE ARE SOME SIGNALS IN LONG RANGE MODEL
GUIDANCE THAT A PATTERN CHANGE IS AHEAD BY THE END OF THE MONTH
INTO EARLY NOVEMBER. WARMER THAN NORMAL TEMPERATURES ARE LIKELY
TO PERSIST, HOWEVER, A FLIP TO MORE ACTIVE, WETTER WEATHER IS
POSSIBLE BY LATE NEXT WEEK JUST IN TIME FOR HALLOWEEN.
WITH THE STAGNANT PATTERN LOCKED IN PLACE, CLEAR SKIES AND LIGHT
NORTHEASTERLY FLOW OFF OF LAKE ERIE WILL LIKELY YIELD SOME PATCHY
DENSE ADVECTION FOG OVERNIGHT INTO EARLY SATURDAY MORNING. BEST
CHANCES FOR FOG WILL LIKELY BE NORTHEAST OF FORT WAYNE, IN AS THIS
IS WHERE THE SMALLEST DEWPOINT DEPRESSIONS AND BEST MOISTURE WILL BE
FOR FOG TO FORM. MUCH LIKE THE PAST FEW NIGHTS, THE BEST TIMEFRAME
FOR DENSE FOG WILL BE BETWEEN 3 AM TO 10 AM EDT SATURDAY, WITH THE
LOWEST VISIBILITIES AROUND DAYBREAK. A SPS OR DENSE FOG ADVISORY MAY
BE NEEDED OVERNIGHT DEPENDING ON TRENDS AND WHERE ANY FOG
DEVELOPS.
AVIATION /18Z TAFS THROUGH 18Z SATURDAY/
ISSUED AT 1247 PM EDT FRI OCT 23 2026
CARBON COPY FORECAST OF VFR CONDITIONS EXPECTED THROUGH THE PERIOD.
FOG/STRATUS WILL LIKELY REMAIN AWAY FROM BOTH SITES, BUT TRENDS WILL
BE MONITORED IN COMING ISSUANCES.
IWX WATCHES/WARNINGS/ADVISORIES
IN...NONE.
OH...NONE.
MI...NONE.
MARINE...NONE.
DISCUSSION...JOHNSON
AVIATION...FISHER
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