074
FXUS63 KILX 190850
AFDILX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LINCOLN IL
250 AM CST SUN JAN 19 2025
KEY MESSAGES
- COLD WEATHER ADVISORY IS IN EFFECT UNTIL LATE MONDAY MORNING FOR
MUCH OF CENTRAL IL. BITTER COLD WILL LAST INTO TUESDAY. WIND
CHILLS BELOW -10 DEGREES AND LOWS NEAR OR BELOW ZERO ARE LIKELY
DURING THIS TIME.
- DRY WEATHER SETS UP AS A HIGH PRESSURE DOMINATES THE WEATHER
PATTERN FOR MUCH OF THE NEXT WEEK.
DISCUSSION
ISSUED AT 250 AM CST SUN JAN 19 2025
WELCOME TO THE DEEP FREEZE. TODAY A HIGH PRESSURE SYSTEM SETS UP
OVER MUCH OF THE CENTRAL PART OF THE CONUS AND WILL HANG AROUND THE
PLAINS/MIDWEST THROUGH MUCH OF THE WEEK. A COLD WEATHER ADVISORY IS
IN EFFECT STARTING AT 09Z THIS MORNING FOR COUNTIES WEST OF THE
ILLINOIS RIVER, WHERE WIND CHILLS ARE EXPECTED TO REACH -15 DEGREES
AND COLDER. STARTING AT 00Z THIS EVENING, THE COLD WEATHER ADVISORY
EXPANDS TO COVER MOST OF THE REMAIN COUNTIES IN THE CWA THROUGH LATE
MONDAY MORNING.
HIGHS FOR TODAY THROUGH TUESDAY WILL RANGE FROM SINGLE DIGITS TO
UPPER TEENS. THE COLDEST TEMPERATURES NORTH OF I-72 FOR MUCH OF THAT
PERIOD. LOWS THROUGH TUESDAY NIGHT WILL BE NEAR OR BELOW ZERO. THERE
IS A 40-70% CHANCE OF LOWS LESS THAN -5 DEGREES MONDAY MORNING NORTH
OF A MACOMB TO BLOOMINGTON LINE. WINDS OUT OF THE NW WILL BE
GUSTY TODAY (~20-25 KNOTS) INCREASING WIND CHILLS DURING THE
DAYTIME HOURS WEST OF THE ILLINOIS RIVER. WIND CHILLS LESS THAN
-10 DEGREES ARE LIKELY THROUGH MONDAY NIGHT ACROSS THE CWA. FURTHER
ADVISORY ISSUANCES MAY NEED TO BE CONSIDERED FOR MONDAY NIGHT,
DESPITE WIND CHILLS RELAXING DURING THE DAYTIME MONDAY. TUESDAY'S
WIND CHILLS COULD DROP BELOW -10 DEGREES NORTH OF I-70, AND BELOW -
15 DEGREES ALONG THE I-74 CORRIDOR.
WEDNESDAY, TEMPERATURES MOVE BACK INTO THE NORMAL RANGE FOR THIS
TIME OF YEAR. HIGHS WARM INTO THE UPPER 20S TO LOW 30S DURING THE
DAY WEDNESDAY. FOR THE REMAINDER OF THE WEEK, IT LOOKS LIKE HIGHS
STAY IN THE 30S, POSSIBLY WARMING UP INTO THE 40S BY NEXT WEEKEND
FOR SOME AREAS. LOWS WILL BE IN THE 20S.
COPPLE
AVIATION
(FOR THE 06Z TAFS THROUGH 06Z SUNDAY NIGHT)
ISSUED AT 1112 PM CST SAT JAN 18 2025
BROKEN MID LEVEL (VFR) CEILINGS WILL DOMINATE THE CENTRAL IL
TERMINALS INTO SUNDAY AFTERNOON BEFORE DISSIPATING. NNW WINDS WILL
OCCASIONALLY GUST NEAR 20 KT TONIGHT. BY EARLY MORNING WINDS ARE
FORECAST TO BACK SLIGHTLY NORTHWEST WITH GUSTS INCREASING NEAR 25
KT, THEN LOSE GUSTINESS BY EARLY EVENING.
25
ILX WATCHES/WARNINGS/ADVISORIES
COLD WEATHER ADVISORY UNTIL NOON CST MONDAY FOR ILZ027>030-036-
040.
COLD WEATHER ADVISORY FROM 6 PM THIS EVENING TO NOON CST MONDAY
FOR ILZ031-037-038-041>046-048-051>057-061>063-066>068-071>073.
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