981
FXUS63 KIND 211745
AFDIND
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
145 PM EDT WED OCT 21 2026
KEY MESSAGES
- DRY YET PLEASANT FALL WEATHER WILL PREVAIL THROUGH THIS WEEKEND
- DAYTIME LOWS WILL BE NEAR NORMAL WITH ABOVE NORMAL HIGHS THROUGH
THE PERIOD.
- VERY SMALL CHANCES OF RAIN NEXT TUESDAY, BETTER CHANCES LATE NEXT
WEEK.
DISCUSSION (THIS EVENING THROUGH WEDNESDAY)
ISSUED AT 145 PM EDT WED OCT 21 2026
TONIGHT THROUGH SUNDAY....
MOSTLY QUIET WEATHER WILL BE THE RULE THROUGH THE WEEKEND AS
SENSIBLE WEATHER OVER CENTRAL INDIANA IS DOMINATED BY SURFACE HIGH
PRESSURE CENTERED TO THE N THROUGH E, WHILE UPPER LEVEL RIDGING
BUILDS IN FROM THE PLAINS STATES. LOW DEWPOINTS AND LONGER NIGHTS
WILL KEEP MIN TEMPS NEAR SEASONAL NORMALS IN THE 40S. CLEAR SKIES
WILL SUPPORT STRONG RADIATIONAL COOLING AT NIGHT. DESPITE THE
RECENT DRY SPELL, THIS WILL LEAD TO LATE NIGHT/EARLY MORNING
PATCHY GROUND FOG IN FAVORED LOW LYING AREAS. ANY FOG WILL BE
SHORT LIVED AS A QUICK RISE OF TEMPERATURES INTO UPPER 60S TO MID
70S OCCURS FOR AFTERNOON HIGHS, SOME 5-10 DEGREES ABOVE NORMAL.
MONDAY AND TUESDAY...
THE REMNANT OF THE LARGE UPPER LEVEL TROUGH WILL MOVE OUT OF THE
WESTERN STATES INTO THE PLAINS AND MS VALLEY. AS THIS SYSTEM
PROGRESS EASTWARD TOWARDS INDIANA IT WILL DEAMPLIFY AS IT ENCOUNTERS
THE UPPER RIDGE CENTERED OVER THE SE STATES. AS THIS SYSTEM
APPROACHES, BL WINDS WILL BECOME MORE SOUTHERLY. HOWEVER, A BROAD
AND DOMINANT AREA OF SURFACE HIGH PRESSURE CENTERED OVER THE SE WILL
SEVERELY LIMIT ANY MOISTURE RETURN. AS A RESULT, RECENT MODEL
CONSENSUS HAS BACKED OFF ON PRECIP CHANCES WITH THIS SYSTEM. THE
NEXT AND MUCH BETTER CHANCE FOR RAIN LOOKS TO BE AFTER THE
FORECAST PERIOD LATE NEXT WEEK WITH THE ARRIVAL OF A COLD FRONT.
AVIATION (18Z TAF ISSUANCE)
ISSUED AT 1231 PM EDT WED OCT 21 2026
IMPACTS:
- MVFR VISIBILITY IN FG POSSIBLE AT KBMG THURSDAY MORNING
DISCUSSION:
VFR CONDITIONS THROUGH THE PERIOD AT MOST SITES, EXCEPT KBMG WHERE
ONCE AGAIN PATCHY FOG IS EXPECTED TOMORROW MORNING AROUND 12Z.
OTHERWISE, EXCELLENT FLYING CONDITIONS WILL BE THE RULE. SOME MID
LEVEL CLOUDS SPILLING OUT OF THE MS VALLEY WILL BE THE ONLY OTHER
SENSIBLE WEATHER ALONG WITH LIGHT AND VARIABLE WINDS.
IND WATCHES/WARNINGS/ADVISORIES
NONE.
AVIATION...CROSBIE
DISCUSSION...CROSBIE
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