Severe Weather/Heavy Rain Event from June 7th
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Several rounds of thunderstorms impacted central Illinois on June 7th and 8th, producing numerous reports of wind damage, flash flooding, and 2 confirmed tornado touchdowns. Rainfall totals were quite impressive as well, with a few locations picking up as much as 4 to 6 inches. An approaching cold front triggered a cluster of thunderstorms across Minnesota into the northern and central sections of Iowa during the evening of June 6th, which then tracked eastward across the Mississippi River by the early morning of June 7th. The storms were non-severe as they spread across north-central Illinois during the morning hours. However, they produced locally heavy rainfall amounts of 1 to 1.50 inches in a short-period of time mainly along and north of a Rushville...to Bloomington...to Hoopeston line. An outflow boundary produced by the storms dropped southward to near the I-72 corridor, then surged back northward during the afternoon as strong southwesterly winds transported very warm and humid air into the region. Temperatures soared into the upper 80s to lower 90s and dewpoints reached the lower 70s. Convective Available Potential Energy (CAPE) values peaked over 3000J/kg by afternoon. A weak short-wave trough, tracking eastward out of Missouri, provided a slight increase to winds aloft which helped enhance low-level wind shear across the area as well. To the left is a map depicting the weather by the evening of June 7th. Note the cold front pushing into northwest Illinois. |
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As the cold front began to approach from the northwest, additional thunderstorms began to rapidly develop along a Chicago...to Peoria...to Quincy line by mid to late afternoon in this highly unstable and modestly sheared environment. Some of the storms produced hail as large as golf balls near Glasford in Peoria County and winds in the 60 to 70mph range as they tracked eastward across Peoria, Tazewell, and Woodford counties. Numerous trees and tree limbs were blown down across this area, with the city of Peoria being particularly hard hit. The storms then congealed into a west-east oriented line from near Macomb eastward to northern Champaign and Vermilion counties. With training cells repeatedly impacting some of the same locations that experienced heavy rainfall during the morning, flash flooding quickly became a concern. Water flowed across Highway 136 near the Logan/McLean County line, where an estimated 4 to 5 inches of rain occurred. As the event progressed, the storms eventually developed an impressive cold pool behind them, which began pushing them southeastward toward the I-72 corridor by mid-evening. Periodic wind damage reports continued to be received as the storms occasionally exhibited bowing segments on radar. Two brief tornado touchdowns occurred within the line of storms. One touched down about 8 miles east of Petersburg in Menard County, where an observer recorded an 87 mph wind gust on his anemometer and reported damage to a barn on his property. A second tornado touched down in rural Piatt County, then tracked into Champaign County where it damaged a barn and several trees southwest of Seymour. |
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As daytime instability weakend well after sunset, severe weather reports dropped off. However, very heavy rainfall continued to be an issue through the night as the convection dropped into southeast Illinois. By the time the storms exited the region by the morning of June 8th, flash flooding was ongoing across portions of Champaign, Vermilion, Effingham, and Clay counties. The heaviest rain fell from far eastern Champaign County across central Vermilion County, where totals of 4 to 6 inches were common. There were multiple reports of flash flooding in Champaign and Vermilion Co. Further south, Effingham and Clay counties received 3 to 4 inches of rain, which caused flash flooding of many rural and low-lying locations as well. |
Below is a summary of reports from the June 7th event
| Cooperative Observer Rainfall Reports | Preliminary Storm Reports |
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CoCoRaHS Precipitation Reports
www.cocorahs.org/state.aspx?state=il
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PRELIMINARY LOCAL STORM REPORT...SUMMARY ...TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... 0355 PM TSTM WND GST 3 WSW ALTA 40.80N 89.68W 0400 PM TSTM WND GST 2 N PEORIA 40.77N 89.61W 0400 PM TSTM WND DMG 2 N PEORIA 40.77N 89.61W 0400 PM TSTM WND DMG 2 SSE ALTA 40.79N 89.61W 0409 PM HAIL GLASFORD 40.57N 89.81W 0410 PM TSTM WND DMG 1 S BENSON 40.84N 89.12W 0410 PM TSTM WND DMG BENSON 40.85N 89.12W 0415 PM TSTM WND GST EUREKA 40.72N 89.28W 0415 PM TSTM WND DMG EUREKA 40.72N 89.28W 0416 PM TSTM WND DMG METAMORA 40.79N 89.36W 0419 PM TSTM WND GST 1 N GLASFORD 40.59N 89.81W 0419 PM TSTM WND GST GLASFORD 40.57N 89.81W 0422 PM TSTM WND DMG 3 WSW ALTA 40.80N 89.68W 0440 PM HAIL CHENOA 40.74N 88.72W 0445 PM TSTM WND DMG CHENOA 40.74N 88.72W 0446 PM FUNNEL CLOUD 2 N LEXINGTON 40.67N 88.78W 0500 PM TSTM WND DMG 3 WSW FOREST CITY 40.35N 89.88W 0500 PM HAIL 1 NNW HAVANA 40.31N 90.06W 0502 PM TSTM WND DMG 2 E HAVANA 40.30N 90.02W 0600 PM HEAVY RAIN 3 NE BLOOMINGTON 40.51N 88.93W 0703 PM FLOOD 1 WNW EMDEN 40.30N 89.50W 0726 PM TSTM WND GST 1 S FARMINGTON 40.70N 90.01W 0728 PM TSTM WND GST 2 E HARTSBURG 40.25N 89.40W 0730 PM TSTM WND DMG PEKIN 40.57N 89.63W 0730 PM HEAVY RAIN PEKIN 40.57N 89.63W 0736 PM TSTM WND GST 2 N LEWISTOWN 40.43N 90.16W 0745 PM TSTM WND DMG BRYANT 40.47N 90.09W 0748 PM FLOOD VERMONT 40.30N 90.43W 0750 PM HAIL ATLANTA 40.26N 89.23W 0752 PM HAIL 4 W DANVILLE 40.14N 87.70W 0755 PM TSTM WND DMG 1 E HALLSVILLE 40.15N 89.08W 0756 PM HAIL 2 E HALLSVILLE 40.15N 89.06W 0802 PM TSTM WND DMG 4 WNW CLINTON 40.17N 89.03W 0805 PM TSTM WND DMG 1 W CLINTON 40.15N 88.98W 0805 PM HEAVY RAIN 1 NE BELLEVUE 40.70N 89.66W 0807 PM FLOOD HANNA CITY 40.69N 89.79W 0807 PM FLOOD ELMWOOD 40.78N 89.97W 0810 PM TSTM WND DMG DANVILLE 40.14N 87.62W 0813 PM FLOOD EAST PEORIA 40.67N 89.55W 0817 PM HAIL WAYNESVILLE 40.24N 89.12W 0821 PM FLOOD MCLEAN 40.32N 89.17W 0822 PM TORNADO 3 S SWEETWATER 40.01N 89.70W 0825 PM TSTM WND DMG LINCOLN 40.15N 89.37W 0827 PM FLOOD SAN JOSE 40.31N 89.60W 0828 PM FLOOD 1 W DELAVAN 40.37N 89.56W 0830 PM HAIL CHAMPAIGN 40.11N 88.26W 0834 PM HEAVY RAIN 2 NNW DANVILLE 40.17N 87.63W 0840 PM HEAVY RAIN SAINT JOSEPH 40.11N 88.04W 0840 PM FLOOD HARTSBURG 40.25N 89.44W 0840 PM FLOOD DELAVAN 40.37N 89.54W 0855 PM FLOOD CLINTON 40.15N 88.96W 0856 PM HEAVY RAIN 3 E BLOOMINGTON 40.48N 88.92W 0904 PM HAIL 2 W WILLIAMSVILLE 39.95N 89.59W 0906 PM TORNADO 5 SE WHITE HEATH 40.03N 88.45W 0909 PM FLOOD 2 S CANTON 40.53N 90.04W 0915 PM TSTM WND DMG 1 N WESTVILLE 40.06N 87.64W 0920 PM TSTM WND GST 2 SW SAVOY 40.04N 88.28W 0920 PM TSTM WND DMG CHAMPAIGN 40.11N 88.26W 0920 PM HEAVY RAIN TILTON 40.09N 87.64W 0920 PM HEAVY RAIN 2 N DANVILLE 40.17N 87.62W 0922 PM TSTM WND DMG URBANA 40.11N 88.21W 0928 PM HEAVY RAIN 2 E BLOOMINGTON 40.48N 88.94W 0936 PM FLOOD 2 NE EMDEN 40.32N 89.46W 0937 PM FLOOD 1 ESE SAN JOSE 40.30N 89.59W 0940 PM TSTM WND DMG OGDEN 40.12N 87.96W 0953 PM TSTM WND GST NEWMAN 39.80N 87.99W 0953 PM TSTM WND GST 2 S BROADLANDS 39.88N 87.99W 0953 PM TSTM WND DMG NEWMAN 39.80N 87.99W 1000 PM HEAVY RAIN CHAMPAIGN 40.11N 88.26W 1000 PM HEAVY RAIN 3 WSW ALTA 40.80N 89.68W 1000 PM HEAVY RAIN 1 SSW BELLEVUE 40.67N 89.68W 1000 PM FLOOD OGDEN 40.12N 87.96W 1002 PM TSTM WND DMG CHARLESTON 39.48N 88.18W 1009 PM HEAVY RAIN 2 N HOMER 40.06N 87.96W 1010 PM TSTM WND DMG GEORGETOWN 39.98N 87.64W 1020 PM HEAVY RAIN 2 W RIVERTON 39.85N 89.58W 1030 PM HEAVY RAIN HOOPESTON 40.47N 87.67W 1030 PM HEAVY RAIN LUDLOW 40.39N 88.13W 1030 PM HEAVY RAIN HENRY 41.11N 89.36W 1030 PM FLOOD LUDLOW 40.39N 88.13W 1102 PM FLOOD DANVILLE 40.14N 87.62W 1102 PM FLOOD 3 W DANVILLE 40.14N 87.68W 1130 PM HEAVY RAIN 3 W ALTA 40.81N 89.69W 1200 AM HEAVY RAIN EFFINGHAM 39.12N 88.55W 1215 AM HEAVY RAIN DANVILLE 40.14N 87.62W 0100 AM HEAVY RAIN 1 NNW WEST PEORIA 40.72N 89.64W 0200 AM HEAVY RAIN ELKHART 40.02N 89.48W 0315 AM FLASH FLOOD FLORA 38.67N 88.48W 0423 AM FLASH FLOOD 3 S LOUISVILLE 38.73N 88.51W 0500 AM HEAVY RAIN 3 W TOWANDA 40.56N 88.95W 0509 AM HEAVY RAIN SHELBYVILLE 39.41N 88.80W 0513 AM HEAVY RAIN WATSON 39.03N 88.57W 0600 AM HEAVY RAIN 2 S MOWEAQUA 39.60N 89.02W 0600 AM HEAVY RAIN ALTONA 41.12N 90.16W 0600 AM HEAVY RAIN OGDEN 40.12N 87.96W 0600 AM HEAVY RAIN HAVANA 40.30N 90.06W 0600 AM HEAVY RAIN 5 SW NORMAL 40.48N 89.07W 0600 AM HEAVY RAIN WINDSOR 39.44N 88.60W 0610 AM HEAVY RAIN DIETERICH 39.06N 88.38W 0648 AM HEAVY RAIN DUNLAP 40.86N 89.68W 0700 AM HEAVY RAIN BLOOMINGTON 40.48N 88.97W 0700 AM HEAVY RAIN PANA 39.39N 89.08W 0700 AM HEAVY RAIN BEECHER CITY 39.19N 88.79W 0700 AM HEAVY RAIN 2 ESE SICILY 39.59N 89.47W 0700 AM HEAVY RAIN CANTON 40.56N 90.04W 0700 AM HEAVY RAIN 3 NW HEARTVILLE 39.09N 88.59W 0700 AM HEAVY RAIN NEOGA 39.32N 88.45W 0700 AM HEAVY RAIN FISHER 40.32N 88.35W 0700 AM HEAVY RAIN ROANOKE 40.80N 89.20W 0700 AM HEAVY RAIN 3 NNE TROWBRIDGE 39.36N 88.50W 0700 AM HEAVY RAIN 1 N MACKINAW 40.55N 89.36W 0700 AM HEAVY RAIN EFFINGHAM 39.12N 88.55W 0700 AM HEAVY RAIN MORTON 40.61N 89.47W 0705 AM HEAVY RAIN MARTINSVILLE 39.34N 87.88W 0705 AM HEAVY RAIN FLORA 38.67N 88.48W 0800 AM HEAVY RAIN YATES CITY 40.78N 90.01W 0813 AM HEAVY RAIN DANVILLE 40.14N 87.62W 0830 AM HEAVY RAIN 2 SE AUBURN 39.56N 89.72W 0841 AM HEAVY RAIN 3 W BISMARCK 40.27N 87.66W 0930 AM HEAVY RAIN EUREKA 40.72N 89.28W 0951 AM TSTM WND DMG EAST PEORIA 40.67N 89.55W 1011 AM HEAVY RAIN LE ROY 40.34N 88.76W |
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