The remnants of Tropical Storm Cristobal drifted northward into central Illinois on June 9th, producing wind gusts of 40 to 50mph. Peak gusts of 53mph were measured at both the Decatur and Champaign airports.
Every event with a place to put it; 9 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.
The remnants of Tropical Storm Cristobal drifted northward into central Illinois on June 9th, producing wind gusts of 40 to 50mph. Peak gusts of 53mph were measured at both the Decatur and Champaign airports. As a result, scattered minor wind damage was observed across the area.
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 Jun 9, 4:18 AM CST, 4 hours 42 minutes earlier.
Area Forecast Discussion National Weather Service Lincoln IL 518 AM CDT Tue Jun 9 2020 .SYNOPSIS... Issued at 236 AM CDT Tue Jun 9 2020 The remnants of Tropical Storm Cristobal will track into eastern Iowa this afternoon, spreading scattered showers and thunderstorms across central and southeast Illinois. Some storms could be severe into this evening. Also, strong southeast winds will gust 35 to 45 mph. && .SHORT TERM...(Today through Wednesday) ISSUED AT 236 AM CDT Tue Jun 9 2020 Latest surface analysis and U/A data indicate the center of TD Cristobal over the MO/AR border. Regional radar mosaic shows steady rains to the west of the low center and arcing bands of showers to the east, as far north as just north of KSTL at 230 AM. 00z model guidance is in good agreement on the synoptic trends as the low shifts almost due north through extreme eastern IA this afternoon while deepening as it begins the transition to an extra- tropical cyclone. Since we will be east of the low track, widespread heavy rain is not a concern, though locally heavy rain in thunderstorms will be possible especially as PWs increase (near top of climatology at 2.3" this afternoon). While scattered showers and isolated storms are expected to overspread the area later this morning through this afternoon, instability remains fairly low (<1000 J/kg CAPEs). The severe threat will primarily be based on directional wind shear for quick spin-ups, and very strong wind fields just off the surface (50+ kt at 900 mb) for locally damaging downbursts. It appears a higher conditional severe threat could unfold this evening as the low level airmass remains moist while drying works in from the west aloft behind the initial rain bands. This results in a marked increase in instability while deep layer shear remains around 40 kt. Several CAM solutions depict a convergence driven line of convection shifting northeast across the central to northern CWA during the evening. If everything lines up right a few tornadoes are possible given high 0-1 km shear. Aside from the localized severe threat, a more widespread but lower end hazard may unfold from strong gradient winds to the east of the deepening surface low. Guidance suggests southeast winds to be sustained at 20-30 mph with gusts near 45 mph. Late morning through mid afternoon is most favored for the highest gusts. Have issued a wind advisory for most areas east of the IL River, 10 AM to 8 PM. This is an out of season and climatologically unusual direction for strong gradient winds, and could result in impacts we don't usually see from borderline wind advisory events. After any storms clear the area later this evening a brief window of shortwave ridging and associated subsidence should bring quiet weather overnight. Wednesday, a compact mid level shortwave will track from central MO northeast towards the southern Great Lakes while taking on a negative tilt. Although the low level airmass will be drying, cold air aloft will result in steep low level lapse rates, and ascent associated with the shortwave will produce scattered instability showers, at least over the northern half of the area. The steep lapse rates will also tap higher momentum air off the surface, with 25-30 mph southwest gusts expected. High temps will be quite a bit cooler in the low/mid 70s. .LONG TERM...(Thursday through Monday) ISSUED AT 236 AM CDT Tue Jun 9 2020 Mainly quiet weather and below normal temperatures will dominate the remainder of the forecast. Ensembles are in good agreement into Saturday depicting seasonably cool/low humidity airmass. Some spread in the height pattern begins to show up Sunday into early next week with the blended forecast trending towards above normal temps by early next week. && .AVIATION...(For the 12Z TAFS through 12Z Wednesday morning) Issued at 518 AM CDT Tue Jun 9 2020 TAFs will be driven by TD Cristobal as it tracks north from southern MO, into northeast IA this evening while transitioning from a tropical to mid-latitude system. Strong winds will be a widespread impact, initially southeast this morning, gradually veering south by late afternoon. Peak speeds are expected late morning through mid afternoon when sustained speeds will be 20-25 kt and gusts to 40 kt. Scattered showers and isolated thunderstorms will affect the terminals today with the most focused timing nearly coincident with the highest winds. MVFR ceilings will be dominant with a several hour period of IFR possible during any widespread rain. As the circulation pulls away later tonight gusts will diminish and skies will clear. && .ILX WATCHES/WARNINGS/ADVISORIES... Wind Advisory from 10 AM this morning to 8 PM CDT this evening for ILZ028>031-037-038-041>046-048-051>057-061>063-066>068- 071>073. && SYNOPSIS...25 SHORT TERM...25 LONG TERM...25 AVIATION...25
Hazardous Weather Outlook National Weather Service Lincoln IL 307 AM CDT Tue Jun 9 2020 ILZ027-036-040-047-049-050-100815- Cass-Fulton-Knox-Morgan-Schuyler-Scott- 307 AM CDT Tue Jun 9 2020 This Hazardous Weather Outlook is for portions of west central Illinois. .DAY ONE...TODAY AND TONIGHT... Showers and thunderstorms are expected today and tonight. Some storms could be severe producing damaging winds and isolated tornadoes. The greatest severe threat is this afternoon and evening. Locally heavy rain is also possible. Gusty south to southeast winds of 25 to 40 mph are expected today. Minor to moderate flooding will continue along the Illinois River. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY... Flooding along the Illinois River is expected to continue for several more days. .SPOTTER INFORMATION STATEMENT... Spotters may be needed this afternoon and evening. ILZ028>031-037-041-100815- Marshall-Mason-Peoria-Stark-Tazewell-Woodford- 307 AM CDT Tue Jun 9 2020 ...WIND ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 8 PM CDT THIS EVENING... This Hazardous Weather Outlook is for portions of central Illinois. .DAY ONE...TODAY AND TONIGHT... Showers and thunderstorms are expected today and tonight. Some storms could be severe producing damaging winds and isolated tornadoes. The greatest severe threat is this afternoon and evening. Locally heavy rain is also possible. Gusty south to southeast winds to around 45 mph are expected today. Minor to moderate flooding will continue along the Illinois River. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY... Flooding along the Illinois River is expected to continue for several more days. .SPOTTER INFORMATION STATEMENT... Spotters may be needed this afternoon and evening. ILZ038-042>046-048-051>057-061>063-066>068-071>073-100815- Champaign-Christian-Clark-Clay-Coles-Crawford-Cumberland-De Witt- Douglas-Edgar-Effingham-Jasper-Lawrence-Logan-Macon-McLean-Menard- Moultrie-Piatt-Richland-Sangamon-Shelby-Vermilion- 307 AM CDT Tue Jun 9 2020 ...WIND ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 8 PM CDT THIS EVENING... This Hazardous Weather Outlook is for portions of central Illinois, east central Illinois and southeast Illinois. .DAY ONE...TODAY AND TONIGHT... Showers and thunderstorms are expected today and tonight. Some storms could be severe producing damaging winds and isolated tornadoes. The greatest severe threat is this afternoon and evening. Locally heavy rain is also possible. Gusty south to southeast winds to around 45 mph are expected today. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY... There will be a chance for thunderstorms Wednesday, mainly along and east of the I-57 corridor. Locally heavy rain is possible. .SPOTTER INFORMATION STATEMENT... Spotters may be needed this afternoon and evening. Deubelbeiss
The national radar mosaic for the moment the first event began.
9 strong wind. Local standard time, as filed.
Several large tree limbs were blown down on Summer Street in Pekin, including one that landed on a car.
A large tree branch snapped and fell onto a power line in Philo.
A power pole was leaning due to strong winds in Chatham.
A large tree limb was snapped in Tremont.
A large tree was blown onto a house in El Paso.
A large tree was blown onto a fence in Morton.
A few large trees were blown down in West Peoria, while a power line was blown down in Peoria Heights.
Large tree limbs were blown down in Metamora and Roanoke.
A few trees were blown down in Manito.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Illinois in 2020Every state in 2020This day in weather historyWarnings in Illinois, June 2020
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: 895829, 895830, 895836, 895838, 895860, 895861, 895869, 895870, 895871.