860  
FXUS63 KIWX 231005  
AFDIWX  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE NORTHERN INDIANA  
605 AM EDT SAT MAR 23 2019  
   
SYNOPSIS
 
 
ISSUED AT 341 AM EDT SAT MAR 23 2019  
 
HIGH PRESSURE WILL HELP KEEP SKIES CLEAR TODAY WITH LIGHT WINDS.  
HIGHS WILL BE NEAR 50. CLOUDS WILL INCREASE TONIGHT WITH RAIN  
DEVELOPING SUNDAY AS THE NEXT WEATHER SYSTEM MOVES INTO THE  
REGION. THE RAIN MAY MIX WITH OR CHANGE TO SNOW BEFORE ENDING  
EARLY MONDAY. LIGHT SNOW ACCUMULATIONS ARE POSSIBLE ON GRASSY  
AREAS BY EARLY MONDAY. OTHERWISE, MONDAY AND TUESDAY WILL BE DRY  
BUT COOL WITH HIGHS AROUND 40 TO 45.  
 

 
   
SHORT TERM
 
(TODAY AND TONIGHT)  
ISSUED AT 335 AM EDT SAT MAR 23 2019  
 
HIGH PRESSURE WAS OVER THE AREA AND HAD BROUGHT CLEAR SKIES, LIGHT  
WINDS AND CHILLY TEMPERATURES. SKIES SHOULD BE SUNNY TODAY,  
ALTHOUGH THE COLD AIRMASS WILL LINGER OVER THE REGION AND KEEP  
TEMPERATURES A LITTLE BELOW NORMAL FOR THIS TIME OF YEAR. CLOUDS  
WILL INCREASE TONIGHT AHEAD OF THE NEXT SYSTEM WITH LOWS IN THE  
30S.  
 

 
   
LONG TERM
 
(SUNDAY THROUGH FRIDAY)  
ISSUED AT 335 AM EDT SAT MAR 23 2019  
 
AN UPPER LOW WAS OVER EASTERN COLORADO EARLY THIS MORNING. THIS  
SYSTEM WILL MOVE INTO THE CENTRAL PLAINS LATER TODAY AND WILL  
THEN REACH THE FORECAST AREA SUNDAY. RAIN ASSOCIATED WITH THIS  
SYSTEM WILL SPREAD ACROSS THE AREA SUNDAY AND PERSIST SUNDAY  
NIGHT BEFORE ENDING MONDAY. THERMAL PROFILES FAVOR JUST RAIN FOR  
THE BULK OF THIS EVENT, ALTHOUGH IT IS POSSIBLE FOR SNOW TO  
BRIEFLY MIX WITH RAIN LATE SUNDAY NIGHT/EARLY MONDAY. IT DOES NOT  
APPEAR THAT THERE WILL BE ANY TRAVEL ISSUES EARLY MONDAY WITH MOST  
ROADS STAYING JUST WET EXCEPT POSSIBLY OVER FAR SOUTH CENTRAL  
LOWER MICHIGAN. TOTAL RAINFALL AMOUNTS BY EARLY MONDAY SHOULD BE  
UNDER A QUARTER OF AN INCH NEAR THE MICHIGAN LINE UP TO HALF AN  
INCH FROM NEAR PORTLAND TO MARION. CHILLY TEMPERATURES ARE AHEAD  
MONDAY AND TUESDAY AS COLD AIR SPREADS BACK ACROSS THE AREA. HIGHS  
MONDAY AND TUESDAY SHOULD BE AROUND 40 TO 45 WITH LOWS MONDAY  
NIGHT FROM AROUND 20 TO 25. THE FLOW SHOULD BECOME HIGH ZONAL BY  
MID WEEK AND SHOULD ALLOW TEMPERATURES TO RISE ABOVE NORMAL BY  
THURSDAY WITH HIGHS AROUND 60. CHANCES FOR RAIN WILL BE INCREASING  
LATE THIS COMING WEEK AS ENERGY EVENTUALLY EJECTS EAST OUT OF A  
LARGE UPPER LEVEL TROF OFF THE WEST CONUS AND REACHES THE MIDWEST.  
THERE IS STILL A LARGE RANGE OF TIMING AMONG MODEL SOLUTIONS;  
HOWEVER, THE CONCENSUS FOR RAINY CONDITIONS IS GENERALLY IN A 48  
HOUR WINDOW FROM THURSDAY NIGHT INTO SATURDAY.  
 

 
   
AVIATION
 
(FOR THE 12Z TAFS THROUGH 12Z SUNDAY MORNING)  
ISSUED AT 605 AM EDT SAT MAR 23 2019  
 
VFR IN SKC CONDITIONS THIS PERIOD AS RIDGING DOMINATES THE WRN LAKES.  
 

 
   
IWX WATCHES/WARNINGS/ADVISORIES
 
 
IN...NONE.  
MI...NONE.  
OH...NONE.  
LM...NONE.  

 
 

 
 
SYNOPSIS...SKIPPER  
SHORT TERM...SKIPPER  
LONG TERM...SKIPPER  
AVIATION...T  
 
VISIT US AT WWW.WEATHER.GOV/IWX  
 
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WWW.TWITTER.COM/NWSIWX  
WWW.YOUTUBE.COM/NWSNORTHERNINDIANA  
 
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