369  
FXUS63 KIWX 092320  
AFDIWX  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE NORTHERN INDIANA  
720 PM EDT FRI OCT 9 2026  
   
KEY MESSAGES  
 
- A FEW LIGHT SPRINKLES OR SHOWERS (10-20%) POSSIBLE IN NORTHWEST IN  
AND SOUTHWEST MI THIS AFTERNOON INTO THIS EVENING.  
 
- PERIODS OF LIGHT RAIN EXPECTED SATURDAY NIGHT INTO SUNDAY  
MORNING, ESPECIALLY EAST OF INTERSTATE 69 WHERE UP TO A HALF  
AN INCH OF RAIN MAY FALL.  
 
- AN ACTIVE PATTERN SETS UP FOR THE SECOND HALF OF NEXT WEEK  
WITH GUSTY WINDS, SHOWERS AND POSSIBLE THUNDERSTORMS, THEN  
TURNING COLDER INTO NEXT WEEKEND.  
 
 
   
DISCUSSION  
 
ISSUED AT 127 PM EDT FRI OCT 9 2026  
 
A WEAK SHORTWAVE AND BRIEF SHOT OF ELEVATED WAA MAY BRING A FEW  
SPRINKLES OR LIGHT HIGH BASED SHOWERS TO NW IN AND SRN MI THIS  
AFTERNOON INTO THIS EVENING. UPPER LEVEL RIDGING THEN BRIEFLY BUILDS  
INTO THE LOWER GREAT LAKES LATER TONIGHT INTO SATURDAY IN BETWEEN  
SYSTEMS. HIGH LEVEL CLOUDS WILL OVERSPREAD THE AREA ON SATURDAY AS  
THE REMNANTS OF HURRICANE ISAIAS LIFT NORTH INTO THE WESTERN TN  
VALLEY. SOUTHERLY WINDS WILL MAKE FOR A WARMER DAY OTHERWISE ON  
SATURDAY WITH HIGHS MID 70S TO NEAR 80F.  
 
THE REMNANTS OF THE TROPICAL SYSTEM THEN TAKE A MORE NORTHEASTERLY  
JOG THROUGH THE LOWER OHIO RIVER VALLEY SATURDAY NIGHT INTO SUNDAY.  
SPOKE OF ENERGY AND ASSOCIATED DEEPER MOISTURE ON ITS NORTHERN  
FRINGE SHOULD BRING AT LEAST LIGHT RAIN IN THE VICINITY OF AN  
INVERTED TROUGH, MAINLY LATE SATURDAY EVENING INTO SUNDAY MORNING.  
THE NBM AND GEFS/ECMWF ENSEMBLES HAVE 50-80% PROBS FOR RAINFALL  
TOTALS UP TO NEAR A HALF INCH IN NORTHWEST OH, ESPECIALLY IN THE  
LIMA AREA. QPF AND POPS DO DROP OFF ALONG AND WEST OF THE INTERSTATE  
69 CORRIDOR WITH A SHARP CUT-OFF TO THE RAIN POSSIBLE IN NW IN AND  
SW MI. NO HAZARDOUS WX ANTICIPATED REGARDLESS WITH LINGERING CLOUDS  
LIKELY KEEPING SUNDAY'S HIGHS COOLER (MID 60S TO LOW 70S).  
 
ANOTHER ROUND OF HEIGHT RISES AND WARMER LOW LEVEL SOUTHWEST FLOW  
WILL MAKE MONDAY THE WARMEST DAY OF THE 7 DAY FORECAST WITH HIGHS IN  
THE UPPER 70S TO MID 80S. A WEAK COOL FRONT LIKELY DROPS  
THROUGH LATER MONDAY NIGHT INTO TUESDAY MORNING WITH SLIGHTLY  
COOLER TEMPS AND A LOW CHANCE (20-40%) FOR A FEW SHOWERS. THE  
PATTERN DOES LOOK TO BECOME INCREASINGLY ACTIVE FOR THE SECOND  
HALF OF THE WEEK WITH GUSTY WINDS AND PERIODIC RAIN/THUNDER  
CHANCES. THE PHASING OF INCOMING NORTHERN AND SOUTHERN STREAM  
SYSTEMS TO CARVE OUT A DEEP TROUGH AND POTENTIAL STRONG SFC  
REFLECTION OVER THE NORTHERN GREAT LAKES AND ONTARIO. THIS  
LIKELY DRIVES A STRONG FALL COLD FRONT THROUGH WITH  
COOL/BLUSTERY AIR FILTERING IN SOMETIME FRIDAY INTO SATURDAY.  
 
 
   
AVIATION /00Z TAFS THROUGH 00Z SUNDAY/  
 
ISSUED AT 717 PM EDT FRI OCT 9 2026  
 
VFR CONDITIONS ARE EXPECTED THROUGH THE TAF FORECAST PERIOD  
WITH SOUTHEASTERLY WINDS BETWEEN 5-10 KTS WITH GUSTS UP TO  
AROUND 18KTS AFTER 14-15Z SAT. A FEW LIGHT SPRINKLES ARE  
POSSIBLE EARLY ON THIS EVENING BUT BECOMING LESS LIKELY.  
 
 
   
IWX WATCHES/WARNINGS/ADVISORIES  
 
IN...NONE.  
OH...NONE.  
MI...NONE.  
MARINE...NONE.  
 
 
 
 
 
DISCUSSION...STEINWEDEL  
AVIATION...ANDERSEN  
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