An upper-level disturbance triggered periods of showers across central Illinois on January 23rd. Early morning low temperatures were in the lower 30s while afternoon highs topped out in the upper 30s and lower 40s.
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS ILX wrote it up.
An upper-level disturbance triggered periods of showers across central Illinois on January 23rd. Early morning low temperatures were in the lower 30s while afternoon highs topped out in the upper 30s and lower 40s. A 59 year-old man from Normal in McLean County died of hypothermia after slipping and falling outside.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Lincoln, IL wrote its last area forecast discussion before the first event at Jan 22, 11:22 PM CST, 38 minutes earlier. Its key messages:
Area Forecast Discussion...Updated Aviation National Weather Service Lincoln IL 1122 PM CST Mon Jan 22 2024 .KEY MESSAGES... * Winter Weather Advisory remains in effect everywhere north of the I-70 corridor through this evening and north of the I-74 corridor through Tuesday morning. * Additional ice accumulations of up to one tenth of an inch in the advisory area. * Above normal temperatures with periodic rain chances for the remainder of the forecast period. && .UPDATE... Issued at 823 PM CST Mon Jan 22 2024 Next round of precipitation is overspreading central Illinois this evening and will be in place for much of the evening and overnight hours. Temperature and dewpoints, meanwhile, continue to straddle the freezing mark (31 to 33 degrees) north of I-70 continuing the threat for freezing rain. MRMS probability of subfreezing road temps for the next hour generally runs between 40 to 70 percent north of I-70 supporting the ongoing Winter Weather Advisory for freezing rain despite a number of locations reporting 2m temps just above freezing. Temperatures will generally hold steady if not tick up a degree or so overnight. Latest HRRR/RAP runs indicate that p-type will transition to rain south of I-74 by midnight, and with that in mind, the southern tier of the advisory south of I-74 appears to remain on track to expire at midnight. With that said, it will probably be a last minute decision based on observational temp/dew point trends to see if that will fully or partially happen. Road conditions as reported by IDOT and other publicly available sources indicate that slow/hazardous conditions persist in the meantime for most of the advisory area. Deubelbeiss && .DISCUSSION... Issued at 329 PM CST Mon Jan 22 2024 A long fetch of moisture continues to flow northward from the Lower Mississippi River Valley this afternoon...resulting in ongoing light precipitation along/east of the Illinois River. Temperatures have climbed to around 32F across much of the KILX CWA, but have pushed into the upper 30s and lower 40s south of I-70 where little or snow cover remains. Given the surge of warmer air, have cancelled the Winter Weather Advisory for Effingham, Jasper, Crawford, Clay, Richland, and Lawrence counties. Further north, light rain continues to fall onto frozen/snow-covered ground, creating slick roadways and sidewalks. 21z RAP forecast soundings show a pronounced elevated warm layer with maximum temps of around 5C at KSPI and 2C further north at KBMI/KCMI. As this layer continues to warm into the 3-5C range across the board this evening, the warm raindrops will begin to warm surfaces and further ice accumulations will become increasingly difficult to achieve. Actual air temps will hover around 32F through the evening, then will rise a couple of degrees overnight. Think additional ice accumulations of less than one tenth of an inch are likely south of the I-74 corridor...with around one tenth along/north of I-74. Winter Weather Advisory will continue through midnight for much of the area...and through 9am Tuesday across the far N/NE CWA. Given warming at all levels of the atmosphere, think main impacts will occur on untreated and secondary roadways, as well as parking lots and sidewalks. Precipitation will quickly come to an end from south to north across the area early Tuesday morning: however, with warm/moist air continuing to flow over the frozen ground and winds becoming lighter, it appears a low overcast and areas of fog will prevail throughout the day Tuesday. High temperatures will top out in the middle to upper 30s, with lower to middle 40s south of I-70. With the Midwest/Ohio River Valley locked into a deep-layer southwesterly flow pattern, the next in a series of disturbances will spread light rain back into central Illinois Tuesday night into Wednesday. Once this wave passes, things will dry out Thursday afternoon through Friday. The warmest day of the forecast period will be Thursday when highs soar into the 50s along/southeast of a Champaign to Springfield line. After that, a minor disturbance may pass south of the region over the weekend...potentially bringing some light rain to at least the southern half of the CWA on Saturday. Confidence in this scenario remains low at this point, so have only featured low chance PoPs along/south of a Danville to Jacksonville line. Main weather story will be the continued mild conditions as highs continue to top the 40-degree mark right through the weekend. Barnes && .AVIATION... (For the 06z TAFs through 06z Tuesday Night) Issued at 1121 PM CST Mon Jan 22 2024 Rain with pockets of freezing rain will continue across central Illinois overnight. The threat for freezing rain, mainly along the I-74 corridor will diminish over the next few hours as temps very slowly inch up. Ceilings will drop to IFR/LIFR areawide and are expected to remain low through the remainder of the period. Fog is also expected to develop, especially late tonight as precip tapers off and a warm front lifts across the region bringing above freezing dew points over the frozen and, in some areas, snow- covered ground. Deubelbeiss && .ILX WATCHES/WARNINGS/ADVISORIES... Winter Weather Advisory until 9 AM CST Tuesday for ILZ027>031- 037-038-043>046-055-057. Winter Weather Advisory until midnight CST tonight for ILZ036- 040>042-047>054-056-061>063. &&
Hazardous Weather Outlook National Weather Service Lincoln IL 346 PM CST Mon Jan 22 2024 ILZ027>031-037-038-043>046-055-057-231200- Knox-Stark-Peoria-Marshall-Woodford-Tazewell-McLean-De Witt-Piatt- Champaign-Vermilion-Douglas-Edgar- 346 PM CST Mon Jan 22 2024 This Hazardous Weather Outlook is for central Illinois, east central Illinois and west central Illinois. .DAY ONE...Tonight. Periods of freezing rain will continue tonight before gradually transitioning to rain late. Additional ice accumulations of around one tenth of an inch are expected...which will create hazardous travel conditions and slick sidewalks and parking lots. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Slick roads are possible early Tuesday morning, but temperatures rising above freezing will quickly end the threat for additional icing. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated tonight. ILZ036-040>042-047>054-056-061>063-231200- Fulton-Schuyler-Mason-Logan-Cass-Menard-Scott-Morgan-Sangamon- Christian-Macon-Moultrie-Coles-Shelby-Cumberland-Clark- 346 PM CST Mon Jan 22 2024 This Hazardous Weather Outlook is for central Illinois, east central Illinois and west central Illinois. .DAY ONE...Tonight. Periods of freezing rain will continue this evening before transitioning to rain toward midnight. Additional ice accumulations of less than one tenth of an inch are expected...which will create hazardous travel conditions and slick sidewalks and parking lots. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated tonight. ILZ066>068-071>073-231200- Effingham-Jasper-Crawford-Clay-Richland-Lawrence- 346 PM CST Mon Jan 22 2024 This Hazardous Weather Outlook is for southeast Illinois. .DAY ONE...Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated tonight. Barnes
Preliminary Local Storm Report
National Weather Service Lincoln IL
651 PM CST Mon Jan 22 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0550 PM Freezing Rain 2 NNW Central Illinois 40.50N 88.93W
01/22/2024 M0.15 inch McLean IL NWS Employee
&&
ErwinThe national radar mosaic for the moment the first event began.
1 cold/wind chill. Local standard time, as filed.
A 59 year-old man from Normal died of hypothermia after slipping and falling outside.
As the offices recorded each death: direct deaths were caused by the weather itself, indirect ones by something it set in motion.
| Event | Date | Age | Sex | Where | Kind |
|---|---|---|---|---|---|
| Cold/Wind Chill, McLean | 2024-01-23 | 59 | Male | Outside/Open Areas | Direct |
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Illinois in 2024Every state in 2024This day in weather historyWarnings in Illinois, January 2024
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1155060.