894
FXUS63 KILX 171124
AFDILX
AREA FORECAST DISCUSSION...UPDATED AVIATION
NATIONAL WEATHER SERVICE LINCOLN IL
524 AM CST FRI JAN 17 2025
KEY MESSAGES
- PATCHY FREEZING FOG LINGERING ACROSS EAST-CENTRAL AND
SOUTHEASTERN IL THIS MORNING AND SHOULD CLEAR OUT AS THE SUN
RISES.
- RAIN TO MOVE IN TONIGHT AHEAD OF A COLD FRONTAL PASSAGE, WHICH
WILL ALSO USHER IN MUCH COLDER TEMPERATURES BEHIND IT.
- WIND CHILLS BELOW -10 DEGREES ARE BEING WATCHED FOR SUNDAY
MORNING TO WEDNESDAY NIGHT. THERE IS HIGH CONFIDENCE (60-90%
CHANCE) IN THESE EXTREME COLD VALUES.
DISCUSSION
ISSUED AT 240 AM CST FRI JAN 17 2025
THERE IS SOME LOCALLY DENSE, PATCHY FREEZING FOG OUT THERE THIS
MORNING, FOCUSED IN EAST-CENTRAL AND SOUTHEASTERN IL. THIS COULD
CAUSE THE MORNING COMMUTE IN THESE AREAS TO BE SLIPPERY IN SPOTS,
ESPECIALLY ON ELEVATED SURFACES (SUCH AS BRIDGES). AS THE SUN RISES
HIGHER IN THE SKY, IT SHOULD START DISSIPATING. TODAY WILL SEE HIGHS
IN THE MID TO UPPER 40S, THE WARMEST IT HAS BEEN IN AWHILE AND WILL
BE FOR A LITTLE WHILE LONGER.
TONIGHT, A COLD FRONT WILL MAKE ITS WAY THROUGH THE REGION. THIS
FRONT WILL BRING PRIMARILY RAIN TO CENTRAL AND SOUTHEASTERN IL
TONIGHT. SOME SNOW FLAKES MAY START MIXING IN AS IT EXITS THE AREA,
WHERE IT GETS COLDER BEHIND THE FRONT. ACCUMULATIONS SHOULD BE
NEGLIGIBLE TO A DUSTING FROM THE LITTLE BIT OF SNOW THAT MAY FALL.
THE HIGHEST RAINFALL AMOUNTS WILL BE IN THE SOUTHEASTERN PORTION OF
THE CWA WITH AMOUNTS UPWARDS OF HALF AN INCH.
BEHIND THE COLD FRONT, A HIGH PRESSURE SYSTEM TAKES OVER AND ARCTIC
AIR WILL SPILL INTO THE STATE. IT WILL BE FRIGID INTO THE NEW WEEK.
HIGHS WILL ONLY GET TO UPPER SINGLE DIGITS TO LOW TEENS, WITH LOWS
BELOW ZERO, SUNDAY THROUGH TUESDAY. WIND CHILLS ARE TO GET BELOW -10
DEGREES FOR MUCH OF THE CWA INTO WEDNESDAY MORNING. THERE IS HIGH
CONFIDENCE (60-90% CHANCE) IN THESE EXTREME COLD VALUES.
TEMPERATURES LOOK TO "REBOUND" TO THE LOW 30S BY THURSDAY NEXT WEEK.
WAYS TO PREPARE FOR THIS EXTREME COLD ARE TO BUNDLE UP WITH MULTIPLE
LAYERS, DRIP YOUR FAUCETS, AND BRING IN PETS FROM OUTSIDE.
COPPLE
AVIATION
(FOR THE 12Z TAFS THROUGH 12Z SATURDAY MORNING)
ISSUED AT 524 AM CST FRI JAN 17 2025
THE BEGINNING OF THE PERIOD IS PRETTY TRANQUIL WITH VFR CONDITIONS
IN PLACE. LATER IN THE PERIOD, AROUND 00Z, WE WILL SEE SOME RAIN
MOVE INTO THE AREA, AFFECTING POSSIBLY PIA FIRST AT 00Z AND THEN
FINALLY CMI AT ~04Z. WE COULD SEE SOME LOWERED MVFR CEILINGS AND/OR
VIS AS THE COLD FRONT DRAWS CLOSER WITHIN THE HEAVIER SHOWERS. THE
WINDS WILL SHIFT FROM THE SOUTH TO NORTH-NORTHWESTERLY BY TOMORROW
MORNING AS THE COLD FRONT PASSES THROUGH. WINDS WILL BE GUSTY, UP TO
25 KNOTS AT TIMES. THE GUSTS MIXED WITH THE FRONTAL PASSAGE, SOME WS
IS LIKELY TO DEVELOP TONIGHT. CONDITIONS WILL IMPROVE BACK TO VFR BY
TOMORROW MORNING.
COPPLE
ILX WATCHES/WARNINGS/ADVISORIES
NONE.
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