123
FXUS63 KILX 141758
AFDILX
AREA FORECAST DISCUSSION...UPDATED AVIATION
NATIONAL WEATHER SERVICE LINCOLN IL
1258 PM CDT SUN SEP 14 2025
KEY MESSAGES
- HOT AND MOSTLY DRY CONDITIONS ARE EXPECTED THROUGH MID-WEEK,
WITH HIGHS IN THE LOW TO MID 90S. HEAT INDICES APPROACHING 100
DEGREES WEST OF I-55 TODAY. DROUGHT CONDITIONS ARE EXPECTED TO
PERSIST OR WORSEN.
- TEMPERATURES WILL TREND COOLER DURING THE LATTER HALF OF THE
WEEK, AND SOME RAIN CHANCES (30-50%) RETURN TO THE FORECAST
THURSDAY-FRIDAY. WHILE ANY RAINFALL WILL BE WELCOME, RAINFALL
AMOUNTS ARE UNLIKELY TO EXCEED 1" (LESS THAN 20% CHANCE).
DISCUSSION
ISSUED AT 132 AM CDT SUN SEP 14 2025
RIDGING OVERHEAD IS STILL CONTROLLING THE WEATHER PATTERN. HIGHS
WILL BE IN THE 90S FOR MOST OF THE NEXT WEEK, DROPPING TO ONLY THE
MID TO UPPER 60S OVERNIGHT. THE HOTTEST DAY IS TODAY, WITH HEAT
INDICES OF 95-100 DEGREES. WE MAY GET A BREAK IN THE SUMMERTIME
WARMTH BY THE END OF THE WEEK, AS UPPER TROUGHING BREAKS DOWN THE
RIDGING THAT HAS BEEN PREDOMINATELY IN PLACE. HIGHS START DROPPING
DOWN INTO THE UPPER 70S TO MID 80S BY LATE WEEK. HOWEVER, ABOVE
NORMAL WARMTH APPEARS TO CONTINUE, AS THE CPC KEEPS IT IN THE
OUTLOOKS THROUGH THE NEXT 3-4 WEEKS. NORMAL HIGHS FOR MID TO LATE
SEPTEMBER ARE AROUND THE MID 70S TO LOW 80S AND LOWS IN THE LOW TO
MID 50S.
THE FORECAST LOOKS TO BE PRIMARILY DRY, BUT THERE IS A 20% CHANCE OF
PRECIPITATION FOR WEST CENTRAL IL THIS AFTERNOON. RAINFALL AMOUNTS
IF SOMETHING WERE TO DEVELOP WOULD NOT BE IMPACTFUL. DROUGHT
CONDITIONS AND DRY AIRMASS WILL LIMIT THE CONVECTIVE DEVELOPMENT,
LIKE IT DID YESTERDAY. MORE RAIN CHANCES RETURN LATE IN THE WEEK.
THE NEXT BEST CHANCE FOR RAIN COMES THURSDAY INTO FRIDAY WITH A
40- 50% CHANCE. NONE OF THESE ROUNDS OF PRECIPITATION WILL BE
DROUGHT BUSTING, SINCE THERE IS ONLY A 15-20% CHANCE OF AN INCH OF
RAIN BY NEXT SUNDAY.
COPPLE
AVIATION
(FOR THE 18Z TAFS THROUGH 18Z MONDAY AFTERNOON)
ISSUED AT 1258 PM CDT SUN SEP 14 2025
VFR CONDITIONS WILL PREVAIL AT ALL TAF SITES NEXT 24HRS. NO
SIGNIFICANT CLOUDS, EXCEPT FOR SOME HIGH CIRRUS, ARE EXPECTED
THROUGH THE PERIOD, BUT WILL STILL CARRY FEW250. WITH HIGH
PRESSURE RIDGE OVER THE TOP OF THE AREA, WINDS ARE VERY VARIABLE.
AUTEN
ILX WATCHES/WARNINGS/ADVISORIES
NONE.
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