024
FXUS63 KIWX 280530
AFDIWX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORTHERN INDIANA
130 AM EDT FRI AUG 28 2026
KEY MESSAGES
- SEASONABLE TEMPERATURES CONTINUE THROUGH SATURDAY, BUT THEN
WARMING AND MORE HUMID CONDITIONS RETURN EARLY NEXT WEEK.
- LOW CHANCE OF SHOWERS AND THUNDERSTORMS RETURN LATE
WEEKEND/EARLY NEXT WEEK BUT CONFIDENCE IS LOW.
DISCUSSION
ISSUED AT 123 PM EDT THU AUG 27 2026
A ROGUE SHOWER REMAINS POSSIBLE THROUGH SUNSET AS ONE MORE WEAK
WAVE PASSES THROUGH THE AREA AND INTERACTS WITH LIMITED
INSTABILITY (LESS THAN 1000 J/KG MUCAPE) AND LITTLE OVERALL
SHEAR.
OTHERWISE, AN EXTENDED DRY PERIOD IS POSSIBLE INTO NEXT WEEK WITH
THE GREATEST CONFIDENCE EXISTING THROUGH THIS WEEKEND ON THIS
OCCURRING. THE UPPER LEVEL FLOW WILL FLATTEN SOMEWHAT AND TRANSITION
MORE SW TO NE INTO EARLY NEXT WEEK THEN MORE WEST TO EAST AS A
STRENGTHENING UPPER LEVEL RIDGE PUSHES NORTH. WITH THE RIDGE AXIS
REMAINING SOUTH OF THE REGION, THIS STILL LEADS TO SOME UNCERTAINTY
WITH REGARDS TO WEAK WAVES THAT WILL PASS THROUGH THE FLOW. THE FLOW
WILL RESIDE FAR ENOUGH WEST INTO SUNDAY TO KEEP PRECIP CHANCES WEST
OF THE AREA WITH MAYBE SOME SLIGHTLY BETTER CHANCES FOR A FEW
SHOWERS OR STORMS DURING THE WORK WEEK. FORECAST WILL REMAIN RIDDLED
WITH PERIODS OF SLGT CHC TO CHC POPS ESPECIALLY NEXT WEEK AS MODELS
STRUGGLE TO HANDLE EACH OF THE WAVES.
REGARDING TEMPERATURES AND HUMIDITY, SEASONABLE HIGHS IN THE LOWER
80S AND SOMEWHAT LOWER HUMIDITY SETTLES IN FOR FRIDAY AND SATURDAY.
WARMER AND MORE HUMID AIR BEGINS TO PUSH BACK IN WITH HIGHS IN THE
MID TO UPPER 80S AND DEWPOINTS IN THE UPPER 60S TO LOWER 70S SUNDAY
INTO NEXT WEEK.
AVIATION /06Z TAFS THROUGH 06Z SATURDAY/
ISSUED AT 130 AM EDT FRI AUG 28 2026
A QUIET AVIATION WEATHER PERIOD IS IN STORE FOR THIS FORECAST
CYCLE AS A BROAD LOW LEVEL ANTICYCLONE MAINTAINS ITS INFLUENCE
ACROSS THE SOUTHERN GREAT LAKES. GOOD RADIATIONAL COOLING
CONDITIONS SHOULD SUPPORT SOME PATCHY SHALLOW FOG FORMATION
THROUGH THE EARLY MORNING HOURS, BUT THIS IS STILL EXPECTED
MAINLY FOR OUTLYING AREAS WITH CURRENTLY NO IMPACTS ANTICIPATED
AT THE TERMINALS. WINDS WILL REMAIN LIGHT THROUGH THIS PERIOD
WITH LIKE SOME PREFERENCE TO LIGHT NORTHEAST FLOW AT KFWA DURING
PEAK MIXING. WIND DIRECTIONS AT KSBN WILL BE HARDER TO
DETERMINE. BACKGROUND FLOW SHOULD FEAR LIGHT EASTERLY FLOW, BUT
SOME LAKE INFLUENCE COULD RESULT IN ESTABLISHMENT OF LIGHT
WESTERLY FLOW BY MID AFTERNOON.
IWX WATCHES/WARNINGS/ADVISORIES
IN...NONE.
OH...NONE.
MI...NONE.
MARINE...NONE.
DISCUSSION...FISHER
AVIATION...MARSILI
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