An approaching cold front interacted with rich Gulf of Mexico moisture to trigger scattered strong thunderstorms during the evening of July 8th. One of the cells produced gusty winds of around 60 mph that blew down a large tree branch in Danville in Vermilion County.
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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 approaching cold front interacted with rich Gulf of Mexico moisture to trigger scattered strong thunderstorms during the evening of July 8th. One of the cells produced gusty winds of around 60 mph that blew down a large tree branch in Danville in Vermilion County.
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 Jul 8, 5:33 PM CST, 42 minutes earlier. Its key messages:
Area Forecast Discussion...Updated Aviation National Weather Service Lincoln IL 633 PM CDT Mon Jul 8 2024 .KEY MESSAGES... - The remnants of Hurricane Beryl will bring much-needed rain to parts of central Illinois on Tuesday. At this time, it appears the heaviest rainfall in excess of 2 inches will focus east of the I-55 corridor. - Heat and humidity will return by the weekend...with heat index readings topping 100 degrees next Sunday/Monday. && .SHORT TERM...(Tonight through Tuesday) Issued at 328 PM CDT Mon Jul 8 2024 1930z/230pm regional radar mosaic shows widely scattered convection developing from just west of Galesburg to near Fort Madison, Iowa...as well as across the far NE KILX CWA in northern Vermilion County. These two locations will be the primary focus for precip over the next few hours before additional activity well to the south across the Ozarks lifts northeastward toward the I-70 corridor by early this evening. Elsewhere around central Illinois, it appears warm/dry weather will prevail through the afternoon and evening. As moisture from the remnants of Hurricane Beryl begins to lift northward, showers will develop across Missouri overnight...then track into central Illinois toward dawn Tuesday. The precip will become heavier/more widespread as the day progresses as the center of Beryl quickly tracks northeastward into the Ohio River Valley. Based on latest NHC forecasts and 12z CAM consensus, it appears the remnant low will reach the Missouri bootheel by Tuesday evening then central Indiana by Wednesday morning. This particular path is favorable for widespread rainfall across much of central Illinois...with the heaviest amounts likely setting up in a band 50-150 miles to the left (N/NW) of the track. It appears this band will primarily focus east of the I-55 corridor where amounts of 1.50 to 2.50 will be common. Isolated totals over 3 inches will be possible in a few spots impacted by stronger convection. Meanwhile rainfall totals will decrease rapidly further NW...with areas west of the Illinois River seeing 0.25 or less. There will be a risk for severe weather with Beryl as well: however, the greatest probabilities for damaging wind gusts and isolated tornadoes will remain to the right (S/SE) of the low track across the Ohio River Valley Tuesday afternoon/evening. Will need to keep an eye on storms as far N/NW as I-70 for the potential for gusty winds though. Gradient winds will increase across all of central and southeast Illinois as the low passes to the S/SE. While some CAMs such as the HRRR are suggesting gusts potentially exceeding 40mph along/east of I-57 by Tuesday night, think this is overdone due to the time of day and lack of deep-layer mixing needed for such gusts. Have however increased the wind forecast to feature 25-30mph gusts along/east of I-57 as Beryl tracks into central Indiana. Barnes .LONG TERM...(Wednesday through Next Monday) Issued at 328 PM CDT Mon Jul 8 2024 A few showers will linger across the E/SE CWA into Wednesday morning before the low departs. After that, rain chances will be minimal through the extended as upper heights gradually rise. Models have been consistently showing an upper ridge trying to build eastward into the Midwest by this weekend. While we will need to watch for potential nocturnal MCS activity riding along the N/NE periphery of the ridge, the main story later in the forecast period will be the building heat and humidity. Air temperatures will climb toward the 90 degree mark by Saturday, then into the lower 90s by Sunday/Monday. Given the rainfall expected from Beryl and the actively growing crops, rich boundary layer moisture with surface dewpoints above 70 degrees will likely push heat index readings well above 100 degrees by early next week. Barnes && .AVIATION... (For the 00z TAFs through 00z Tuesday Evening) Issued at 633 PM CDT Mon Jul 8 2024 All sites will be VFR to start, even with scattered showers around. Scattered showers have developed along a weak front over the Illinois river. So, PIA will have VCTS with TEMPO TS for a couple of hours. Isolated showers and elsewhere, but may not affect other sites this evening. Additional showers will become more predominate late tonight and then continue tomorrow. Cig and vis will also decrease tomorrow as the rain moves into the area during the morning hours. Winds will become light this evening and then south to southeast tomorrow morning. Wind speeds will remain light, even tomorrow morning. Cigs could become lower tomorrow afternoon, but did not add a new line with this issuance. Auten && .ILX WATCHES/WARNINGS/ADVISORIES... Flood Watch from Tuesday morning through Wednesday afternoon for ILZ066>068-071>073. &&
Hazardous Weather Outlook National Weather Service Lincoln IL 315 PM CDT Mon Jul 8 2024 ILZ027>031-036-037-040-041-047>050-092015- Knox-Stark-Peoria-Marshall-Woodford-Fulton-Tazewell-Schuyler-Mason- Cass-Menard-Scott-Morgan- 315 PM CDT Mon Jul 8 2024 This Hazardous Weather Outlook is for central Illinois and west central Illinois. .DAY ONE...Tonight. Isolated to scattered thunderstorms are possible into tonight, but the potential for severe weather and heavy rainfall is low. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Tuesday into Wednesday post-tropical depression Beryl will track through the region, bringing the potential for heavy rainfall and strong wind gusts over 30 mph. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated tonight. ILZ066>068-071>073-092015- Effingham-Jasper-Crawford-Clay-Richland-Lawrence- 315 PM CDT Mon Jul 8 2024 This Hazardous Weather Outlook is for southeast Illinois. .DAY ONE...Tonight. Isolated thunderstorms are possible into tonight, but the potential for severe weather and heavy rainfall is low. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Tuesday into Wednesday post-tropical depression Beryl will track into southeastern Illinois, bringing the potential for heavy rainfall of 1 to 4 inches and strong wind gusts over 35 mph. Flooding is possible due to the combination of heavy rainfall with moist soils from recent rains. In addition, a few severe thunderstorms could occur with isolated wind gusts over 60 mph and a few tornadoes. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated tonight. ILZ038-042>046-051>057-061>063-092015- McLean-Logan-De Witt-Piatt-Champaign-Vermilion-Sangamon-Christian- Macon-Moultrie-Douglas-Coles-Edgar-Shelby-Cumberland-Clark- 315 PM CDT Mon Jul 8 2024 This Hazardous Weather Outlook is for central Illinois and east central Illinois. .DAY ONE...Tonight. Isolated to scattered thunderstorms are possible into tonight, but the potential for severe weather and heavy rainfall is low. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Tuesday into Wednesday post-tropical depression Beryl will track through the region, bringing the potential for heavy rainfall of 1 to 4 inches and wind gusts over 35 mph. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated tonight. Erwin
Preliminary Local Storm Report
National Weather Service Lincoln IL
328 PM CDT Mon Jul 8 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0700 AM Rain 3 N Galesburg 40.99N 90.38W
07/08/2024 M1.89 Inch Knox IL Cocorahs
Cocorahs station IL-KX-24 Galesburg 2.5 N.
0700 AM Rain 1 NW Knoxville 40.91N 90.29W
07/08/2024 M1.07 Inch Knox IL Cocorahs
Cocorahs station IL-KX-9 Knoxville 0.7 NW.
&&Preliminary Local Storm Report
National Weather Service Lincoln IL
330 PM CDT Mon Jul 8 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0700 AM Rain 1 W Galesburg 40.95N 90.39W
07/08/2024 M1.10 Inch Knox IL CO-OP Observer
CO-OP Observer station GBGI2 Galesburg.
&&The Indianapolis radar (KIND), 125 km away, was scanning. The volume nearest the first event began at 00:14 UTC.
1 thunderstorm wind. Local standard time, as filed.
An 8 to 10-inch diameter 20-foot long tree branch was blown down on Bowman Avenue.
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, July 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: 1187401.