077
FXUS63 KILX 171051
AFDILX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LINCOLN IL
551 AM CDT MON AUG 17 2026
KEY MESSAGES
- COOLER AND LESS ACTIVE WEATHER IS ON DECK FOR THIS WEEK, BUT
WON'T BE COMPLETELY DRY. THERE IS A 50-70% CHANCE FOR SHOWERS
AND THUNDERSTORMS TOMORROW AFTERNOON INTO WEDNESDAY MORNING.
- TEMPERATURES FOR THE NEXT 7 DAYS WILL BE IN THE UPPER 70S TO
80S FOR HIGHS AND 60S TO LOW 70S FOR LOWS. THE CPC 6-10 AND
8-14 DAY OUTLOOKS SHOW A 30-50% CHANCE OF ABOVE NORMAL
TEMPERATURES RETURNING.
DISCUSSION
ISSUED AT 210 AM CDT MON AUG 17 2026
AFTER THIS AREA OF HEAVY RAIN EXITS THE SOUTHEAST THIS MORNING, A
MUCH LESS ACTIVE PATTERN WILL SETTLE IN FOR THE WEEK. BEHIND THE
COLD FRONT MOVING THROUGH IL CURRENTLY, A HIGH PRESSURE CENTER WILL
SET UP OVER THE UPPER MISSISSIPPI VALLEY / GREAT LAKES REGION FOR A
DAY. TEMPERATURES FOR THE NEXT 7 DAYS WILL BE IN THE UPPER 70S TO
80S FOR HIGHS AND 60S TO LOW 70S FOR LOWS. THIS PERIOD OF COOLER
WEATHER DOESN'T LOOK LIKE IT IS IN FOR THE LONG HAUL. THE CPC 6-10
AND 8-14 DAY OUTLOOKS SHOW A 30-50% CHANCE OF ABOVE NORMAL
TEMPERATURES.
SHOWERS AND THUNDERSTORMS RE-ENTER THE FORECAST BY LATE
TOMORROW AS A UPPER DISTURBANCE PULSES THROUGH. SPC HAS CENTRAL
IL IN A MARGINAL RISK FOR SEVERE WEATHER FOR TUESDAY WEST OF A
PITTSFIELD TO OTTAWA LINE, WHICH WOULD BE FOR THE LATE AFTERNOON
CONVECTION. THERE IS A 50-70% CHANCE FOR SHOWERS AND
THUNDERSTORMS TOMORROW AFTERNOON INTO WEDNESDAY MORNING.
ADDITIONAL CHANCES FOR RAIN EXIST THROUGH THURSDAY BEFORE RETURNING
TO A MOSTLY DRY FORECAST FOR THE END OF THE WEEK. WEDNESDAY AND
THURSDAY ARE NOT EXPECTED TO HAVE ANY SEVERE WEATHER AT THIS TIME.
IT ALSO APPEARS THAT THE MAJORITY OF THE RAIN THAT MAY OCCUR THOSE
TWO DAYS SHOULD BE SOUTH OF I-74/DANVILLE, PROVIDING A WELL DESERVED
BREAK FROM THE HEAVY RAIN.
AVIATION /12Z TAFS THROUGH 12Z TUESDAY/
ISSUED AT 551 AM CDT MON AUG 17 2026
VFR CONDITIONS ARE EXPECTED THROUGH THE 12Z TAF PERIOD TODAY.
WINDS WILL BE OUT OF THE NORTH 6-9KTS THEN BECOMES LIGHT AND
VARIABLE THIS EVENING INTO THE OVERNIGHT.
ILX WATCHES/WARNINGS/ADVISORIES
NONE.
KEY MESSAGES...COPPLE
DISCUSSION...COPPLE
AVIATION...COPPLE
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