345  
FXUS63 KIND 191844  
AFDIND  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE INDIANAPOLIS IN  
244 PM EDT SAT SEP 19 2026  
   
KEY MESSAGES
 
 
- SCATTERED TO NUMEROUS SHOWERS AND STORMS WILL BE AROUND AT TIMES  
THIS WEEKEND.  
 
- AN ISOLATED SEVERE STORM WITH DAMAGING WINDS IS POSSIBLE THIS  
AFTERNOON AND SUNDAY AFTERNOON.  
 
- SHOWER AND STORM CHANCES PERSIST FOR MUCH OF THE TIME INTO  
EARLY NEXT WEEK, WITH TEMPERATURES TURNING COOLER NEXT WEEK  
 

 
   
DISCUSSION (THIS EVENING THROUGH SATURDAY)
 
 
ISSUED AT 244 PM EDT SAT SEP 19 2026  
 
WIDELY SCATTERED SHOWERS AND STORMS WILL CONTINUE ACROSS PORTIONS OF  
CENTRAL INDIANA THIS AFTERNOON, THOUGH MODEST INSTABILITY AND WEAK  
SHEAR IS LIMITING COVERAGE AND INTENSITY SIGNIFICANTLY. THIS  
ACTIVITY SHOULD LARGELY COME TO AN END THIS EVENING AS HEATING IS  
LOST, THOUGH A WEAK UPPER WAVE MAY ALLOW A FEW SHOWERS TO LINGER,  
MAINLY NORTH.  
 
A SLIGHTLY MORE SUBSTANTIAL UPPER WAVE ARRIVES SUNDAY, AND WILL  
PROMOTE SCATTERED TO POTENTIALLY WIDESPREAD SHOWERS AND STORMS,  
PARTICULARLY DURING THE AFTERNOON AND EVENING HOURS. MODEST  
INSTABILITY AND DEEP LAYER SHEAR MAY PROMOTE SLIGHTLY BETTER  
COVERAGE AND A SLIGHT UPTICK IN INTENSITY TOMORROW, AND POSSIBLY A  
SMALL HAIL THREAT IN ADDITION TO THE LOCALIZED STRONG WIND THREAT,  
AND THE CONTINUED HEAVY DOWNPOUR THREAT.  
 
THOUGH THE SURFACE FRONT PUSHES FURTHER SOUTH AS WE MOVE INTO THE  
WORK WEEK, A SLOW-MOVING UPPER LEVEL LOW WILL PASS THROUGH THE AREA  
THROUGH MID WEEK, WITH CHANCES FOR SHOWERS AND PERHAPS A FEW  
THUNDERSTORMS LINGERING INTO WEDNESDAY, THOUGH CHANCES SHOULD BE  
HIGHEST WHEN DIURNALLY FAVORED/NEAR PEAK HEATING.  
 
HIGH PRESSURE IN THE WAKE OF THE UPPER LOW SHOULD BRING MILD AND  
PLEASANT WEATHER TO THE AREA LATE IN THE WEEK.  
 
TEMPERATURES WILL REMAIN WARM THROUGH SUNDAY, THOUGH THE GRADIENT  
WILL BE RELATIVELY STRONG WITH THE SURFACE FRONT IN THE AREA. ONCE  
THE FRONT IS SHUTTLED SOUTHWARD, TEMPERATURES THROUGH THE REMAINDER  
OF THE PERIOD SHOULD BE NEAR TO BELOW NORMAL, WITH HIGHS LARGELY IN  
THE 70S AND LOWS LARGELY IN THE 50S FROM MONDAY ONWARD.  
 

 
   
AVIATION (18Z TAF ISSUANCE)
 
 
ISSUED AT 103 PM EDT SAT SEP 19 2026  
 
IMPACTS:  
 
- SCATTERED SHOWERS AND STORMS THIS AFTERNOON  
 
DISCUSSION:  
 
WIDELY SCATTERED CONVECTION IS ONGOING ACROSS PORTIONS OF THE AREA  
THIS AFTERNOON AS AN UNDULAR BORE ACCOMPANIES MULTIPLE CONVECTIVE  
OUTFLOWS PUSHING SSE THROUGH THE AREA. INSTABILITY AND SHEAR ARE  
WEAK AND THUS INTENSITY AND ORGANIZATION IS LOW. WILL CARRY PROB30  
FOR THUNDER AT ALL BUT LAF WHERE THUNDER IS ONGOING. BRIEF DROPS TO  
MVFR IN CONVECTION WILL BE POSSIBLE BUT VFR SHOULD BE PREDOMINANT.  
 
ANY LINGERING SHOWERS ARE LIKELY TO LARGELY COME TO AN END LATE IN  
THE DAY/THIS EVENING WITH MOSTLY QUIET WEATHER OVERNIGHT. SOME  
PATCHY FOG WILL BE POSSIBLE BUT IS FAR TOO UNCERTAIN FOR INCLUSION  
AT THIS TIME.  
 
WINDS WILL SWING AROUND TO NORTHWESTERLY OR NORTHERLY, AND BECOME  
MORE NORTHEASTERLY WITH TIME, PERHAPS VARIABLE. SPEEDS SHOULD BE  
10KT OR LESS OUTSIDE OF CONVECTION.  
 

 
   
IND WATCHES/WARNINGS/ADVISORIES
 
NONE.  
 

 
 

 
 
AVIATION...NIELD  
DISCUSSION...NIELD  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab IN Page Main Text Page