Illinois, 2001

Flash Flooding and Hail in Illinois, June 5 to 6, 2001

June 5 to 6, 2001 · NWS ILX · 19 events in 16 counties and zones

16 flash flood, 2 hail, 1 thunderstorm wind, as filed by the National Weather Service.

Where it happened

Every event with a place to put it; 16 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
$500,000
Crop damage
None recorded
Events
19

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.

What forecasters said that day

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 5, 1:41 PM CST, 1 hour 19 minutes earlier.

Area forecast discussion, Jun 5, 1:41 PM CST, 1 hour 19 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LINCOLN IL
241 PM CDT TUE JUN 5 2001

SHORT-TERM FCST CHALLENGES INCLUDE HEAVY RAINFALL POTENTIAL WITH SFC
BOUNDARY ACRS REGION THRU TONIGHT...THEN ENDING OF PCPN CHANCES AND
TEMPS STARTING LATER TMRW.

18Z SFC ANALYSIS SHOWS MAIN SYNOPTIC FNT ACRS CRL IL. HARD TO PICK
THIS FEATURE OUT AS NUMEROUS OUTFLOW BOUNDARIES EXIST FM EARLIER
CONVECTION. AIRMASS SOUTH OF FNT IS VERY UNSTABLE...WITH LATEST RUC
SHOWING LOWEST LI/S (TO -6) AND BEST MOIST CONV IN AN AXIS FM SRN MO
TO SRN IL. WL NEED TO CONT TO MONITOR THIS AREA FOR TSRA/SVR DVLPMNT
AS AIRMASS INTERACTS WITH OUTFLOW BOUNDARIES. QUESTION IS...WHERE WL
THE MAIN SYNOPTIC FNT GO TONIGHT...AS THIS WL BE KEY PLAYER IN HEAVY
RAINFALL LOCATION TONIGHT. ETA IS FARTHEST NORTH...PUSHING WF INTO
NRN IL BY THIS EVE. HARD TO BELIEVE THIS SCENARIO WITH CURRENT
LOCATION OF FNT AND NUMEROUS WAVES/CONVECTION TENDING TO KEEP
BOUNDARY FARTHER SOUTH. ONE WAVE ANALYZED AT 18Z NR UIN...ANOTHER
WEST OF KC. WL GO WITH FARTHER SOUTH DEPICTION OF AVN. EXPECT OFF
AND ON RAIN OVERNIGHT...LOCALLY HEAVY...AS MOIST CONV AND HIGH
VALUES OF PRECIP WATER COMBINE WITH GOOD LIFTING MECHANISMS. ALREADY
HAVE FLASH FLOOD WATCH FOR LOCATIONS MAINLY ALONG AND NW OF IL RIVER
AS FAR SOUTH AS FULTON AND TAZEWELL COUNTIES. BASED ON FNT LOCATION
A BIT FARTHER SOUTH THAN PREVIOUSLY FCST...WL ADD MENTION OF
POTENTIAL OF HEAVY RAINFALL LOCATIONS FARTHER SOUTH...MAINLY ALONG
AND NORTH OF SPI-MTO LINE. THESE AREAS DID NOT SEE HEAVY RAINFALL
LAST NIGHT/EARLIER TODAY THAT LOCATIONS FARTHER NORTH HAD...SO WATCH
IS NOT ANTICIPATED ATTM DESPITE FLASH FLOOD GUIDANCE VALUES OF 1.5
TO 2.0 INCHES IN THREE HOURS.

MODELS ALL IN GOOD AGREEMENT WITH SAGGING THE FNT SLOWLY SWD INTO
SRN IL BY LATE TMRW. THIS IN RESPONSE TO S/WV ENERGY FM NW. BEST
CHANCES FOR PCPN REMAIN ALONG SFC FNT...MAINLY SOUTH OF A UIN TO HUF
LINE DURING THE AFT AND EVE HOURS. WL NEED TO TRIM BACK PCPN
WORDING...ESP ACRS NW ILX CWA.

TEMPS TRICKY WITH BOUNDARY ACRS AREA. WL ONLY MAKE MINOR ADJUSTMENTS
TO GOING FCST ATTM. DAYTIME HIGHS WL BE VERY DEPENDANT ON AMOUNT OF
SUNSHINE/EXTENT OF RAIN AND CLOUDS AT ANY GIVEN SPOT.

MODELS STILL SHOWING GENERAL NW FLOW ALOFT INTO THE WEEKEND...WITH
RIDGING TRYING TO WORK ITS WAY EAST INTO THE REGION. LOOKS LIKE
SEVERAL S/WS WILL BE MOVING THROUGH THE FLOW WITH ONE MOVING
THROUGH LATE FRIDAY INTO SATURDAY...TO BRING A CHC OF PCPN THROUGH
THE DAY. THEN A WEAK S/W MOVES IN FOR MONDAY. NOT REAL IMPRESSED
WITH CHC OF PCPN WITH IT...BUT WILL STICK WITH PERSISTANCE THAT FAR
OUT. DRY CONDITIONS EXPECTED TUESDAY.

...PRELIMINARY CCF FOR COORDINATION PURPOSES ONLY...

SPI TB 065/075 057/073 054 26873
PIA EB 062/072 055/070 055 26963
DEC TB 065/075 057/073 055 26873
CMI TB 064/073 056/071 054 26873
MTO TB 068/077 058/072 057 26784
LWV TB 070/081 064/077 058 26684

.ILX...FLASH FLOOD WATCH ILZ027>031-036-037 THROUGH TONIGHT.

FISHER/PLAHMER

In the hours before

Special weather statement, Jun 5, 10:00 AM CST, 5 hours before
ILZ027>031-036>038-040>057-061>063-066>068-071>073-051800-

HAZARDOUS WEATHER OUTLOOK FOR CENTRAL ILLINOIS
NATIONAL WEATHER SERVICE LINCOLN IL
1100 AM CDT TUE JUN 5 2001

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS LATE THIS AFTERNOON
AND TONIGHT ACROSS CENTRAL AND SOUTHEAST ILLINOIS.

WARM AND UNSTABLE AIR LOCATED ALONG A STATIONARY FRONT DRAPED
ACROSS ILLINOIS WILL PROVIDE THE EMPHASIS FOR SHOWERS AND
THUNDERSTORMS TO DEVELOP TODAY. THE PRIMARY THREAT WITH THESE STORMS
WILL BE HAIL ALONG WITH HEAVY RAINFALL.

SPOTTER ACTIVATION MAY BE NEEDED LATE THIS AFTERNOON INTO THIS
EVENING ACROSS ALL OF CENTRAL ILLINOIS.

KETCHAM

The radar

The Lincoln radar (KILX), 96 km away, was scanning. The volume nearest the first event began at 21:01 UTC.

Open the radar archive at this moment

Event by event

16 flash flood, 2 hail, 1 thunderstorm wind. Local standard time, as filed.

Flash Flood, Shelby

When
June 5, 3:00 PM CST to June 6, 4:00 AM CST
Where
Shelby County, Countywide
Reported by
EMERGENCY MANAGER
Coordinates
39.391, -88.805 (the zone’s center; the record gives no point)

Flooding was reported across the county during the period. The Little Wabash River went out of its banks, blocking several local roads east of Stewardson, as well as 3 miles southeast of Strasburg. Along US Highway 51, near Mowequa, water covered the road for several hours. A motorist drove into water up to his door handles. Illinois Route 128, west of Findlay was severely flooded during the overnight hours, and the highway was closed for part of Wednesday morning 6 miles north of Shelbyville at a railroad viaduct. In Shelbyville, basement flooding was reported along with the closure of Illinois Route 16 due to flood waters. A culvert was washed out on county road 1800 E, around 3 miles south of Shelbyville. County road 700 N, between Illinois Route 32 and Neoga were closed due to flooding as well. A Findlay observer reported over 3.5 inches of rain. A SWOP observer in Lakewood, reported flooding on county road 1300 E, two and a half miles south of county road 750 N as a result of a local creek going out of its banks. This same observer reported over an inch of rain falling in just 12 minutes. Rescue crews were called out twice during the event for motorists trapped in vehicles. No injuries were reported.

Thunderstorm Wind, Crawford

When
June 5, 3:00 PM CST
Where
Crawford County, 1 mi N of Eaton
Measured
50 kt (58 mph)
Reported by
LAW ENFORCEMENT
Coordinates
39.100, -87.800

Large tree blown down over road.

Flash Flood, Jasper

When
June 5, 3:35 PM CST to 10:30 PM CST
Where
Jasper County, Countywide
Reported by
EMERGENCY MANAGER
Coordinates
39.010, -88.154 (the zone’s center; the record gives no point)

Illinois Route 49 from Hunt City to Yale was closed with 3 to 4 feet of water over the roadway. Numerous roads were flooded around the area, with some other closures. Reports of basement flooding were also received. Illinois Routes 49, 33, and 130, between Hidalgo and Newton, and the blacktop between Illinois Route 130 and Illinois Route 49 were reported flooded during the evening.

Flash Flood, Cumberland

When
June 5, 3:45 PM CST to 6:30 PM CST
Where
Cumberland County, 4 mi NE of Neoga
Reported by
LAW ENFORCEMENT
Coordinates
39.273, -88.240 (the zone’s center; the record gives no point)

Water was reported over the roadway at the intersection of US Route 45 and Illinois Route 121.

Flash Flood, Clark

When
June 5, 3:50 PM CST to 6:30 PM CST
Where
Clark County, Martinsville
Reported by
LAW ENFORCEMENT
Coordinates
39.334, -87.788 (the zone’s center; the record gives no point)

Water was reported over US Route 40, near Martinsville.

Flash Flood, Crawford

When
June 5, 4:00 PM CST to 7:00 PM CST
Where
Crawford County, Countywide
Reported by
EMERGENCY MANAGER
Coordinates
39.003, -87.760 (the zone’s center; the record gives no point)

Numerous rural roads and highways were reported flooding during the event. Illinois Route 1, north of Trimble, Illinois Route 33 between Willow Hill and the Fairview Drive-in and Illinois Route 1A between Trimble and Robinson were all reported as flooded. Signs were put up in the area to warn motorists, but the roads were not closed. Water was reported over the Yale Spur in the Bellair area.

Flash Flood, Effingham

When
June 5, 4:00 PM CST to 6:30 PM CST
Where
Effingham County, Countywide
Reported by
LAW ENFORCEMENT
Coordinates
39.060, -88.590 (the zone’s center; the record gives no point)

Water was reported over roads across the county. Moccasin Road, around Effingham, was under water. US Route 45 north of Effingham and US Route 40 between Montrose and Teutopolis were under water.

Flash Flood, Clay

When
June 5, 5:20 PM CST to 7:00 PM CST
Where
Clay County, Flora
Reported by
EMERGENCY MANAGER
Coordinates
38.754, -88.490 (the zone’s center; the record gives no point)

Street flooding was reported in Flora, as well as water over many rural roads near Hord.

Hail, Clay

When
June 5, 5:21 PM CST
Where
Clay County, Flora
Measured
0.75 in hail
Reported by
EMERGENCY MANAGER
Coordinates
38.667, -88.483

Flash Flood, Richland

When
June 5, 5:30 PM CST to 7:00 PM CST
Where
Richland County, 1 mi N of Olney
Reported by
EMERGENCY MANAGER
Coordinates
38.712, -88.085 (the zone’s center; the record gives no point)

The Fox River went out of its banks during the event, roughly 1 mile north of Olney, resulting in water across portions of Illinois Route 130.

Flash Flood, Marshall

When
June 5, 5:30 PM CST to 7:00 PM CST
Where
Marshall County, 4 mi N of Sparland
Reported by
NEWSPAPER
Coordinates
41.033, -89.345 (the zone’s center; the record gives no point)

Illinois Route 29, 4 miles north of Sparland, was closed when water was "radiator deep on a car".

Hail, Scott

When
June 5, 6:29 PM CST
Where
Scott County, Winchester
Measured
0.75 in hail
Reported by
OFFICIAL NWS OBS.
Coordinates
39.633, -90.467

Flash Flood, Scott

When
June 5, 6:40 PM CST to June 6, 11:00 AM CST
Where
Scott County, Countywide
Reported by
EMERGENCY MANAGER
Coordinates
39.644, -90.475 (the zone’s center; the record gives no point)

A local creek that runs through Bluffs went over its banks. A few cars were reported to have been flooded. Illinois Route 100 as well as Naples Lane, west of Bluffs, were closed due to flooding. Numerous basements were flooded in the area of the creek, along with the local water and sewer plant receiving flooding. A portion of the Glasgow blacktop and Illinois Route 267 at Manchester were closed for a period of time due to Sandy Creek exceeding its levee. A housing complex in the county (location unknown) reported having 12 cars in its parking lot flooded. Illinois Route 106, just south of Winchester, was reported to have 8 to 12 inches of water over the roadway.

Flash Flood, Morgan

When
June 6, 12:00 AM CST to 9:00 AM CST
Where
Morgan County, Countywide
Reported by
EMERGENCY MANAGER
Coordinates
39.716, -90.201 (the zone’s center; the record gives no point)

Water was reported over many roads in Waverly. Flooding was also occurring in and around Jacksonville, including US Route 67, south of Jacksonville. Mauvaiseterre Creek, east of Jacksonville, went over its banks, resulting in the closure of a few local roads. Water was also reported over Illinois Route 104, near Pisgah and Illinois Route 267, near Murrayville.

Flash Flood, Tazewell

When
June 6, 1:58 AM CST to 4:00 AM CST
Where
Tazewell County, Pekin
Reported by
LAW ENFORCEMENT
Coordinates
40.508, -89.513 (the zone’s center; the record gives no point)

Pekin reported several roads/bridges that crossed a local drainage ditch closed due to flooding. A few adjacent city roads were also closed due to high water.

Flash Flood, Cass

When
June 6, 3:00 AM CST to 4:30 AM CST
Where
Cass County, Ashland
Reported by
EMERGENCY MANAGER
Coordinates
39.974, -90.247 (the zone’s center; the record gives no point)

Flooding was reported in Ashland as a result of a tributary creek of the Little Indian Creek going over its banks due to heavy rain. Numerous roads were reported closed in town, with some basement flooding noted. Illinois Route 125 was open to traffic. No evacuations were needed.

Flash Flood, Christian

When
June 6, 3:30 AM CST to 7:00 AM CST
Where
Christian County, Countywide
Reported by
EMERGENCY MANAGER
Coordinates
39.546, -89.277 (the zone’s center; the record gives no point)

Flooding was reported on most of the roads across the county. Road closures were reported on County Road 4, two miles west of Mowequa (near the Christian/Shelbyville county line) and County Road 23 two miles north of Edinberg. Langleyville Road and Jim Daley Road were also closed during the overnight hours. A motorist was rescued around 515 AM CDT after driving through flood waters up to the floorboard of the vehicle.

Flash Flood, Macon

When
June 6, 4:00 AM CST to 7:00 AM CST
Where
Macon County, Countywide
Reported by
EMERGENCY MANAGER
Coordinates
39.860, -88.962 (the zone’s center; the record gives no point)

Reports of water over many county roads were received. Flooding was reported in Boody on Illinois Route 48, between Harvey City and Dalton City on County Highway 49 and on Illinois Route 121. More than a dozen basements were also flooded in Decatur.

Flash Flood, Sangamon

When
June 6, 5:40 AM CST to 11:00 AM CST
Where
Sangamon County, Divernon
Property damage
$500,000
Reported by
EMERGENCY MANAGER
Coordinates
39.758, -89.659 (the zone’s center; the record gives no point)

Brush Creek, which flows along the west side of Divernon, went out of its banks, resulting in widespread flooding and nearly 30 homes being evacuated around 2 AM CDT. Several people had to be rescued from their homes as the flood waters quickly filled in the natural flood plain of the creek, flooding numerous basements on the east side of town and entire homes on the west side of town, where water was reported to be as high as windows in a few locations. Railroad tracks in the area were washed out. No injuries or fatalities were reported. North and southbound Interstate 55 were closed for several hours south of the Illinois Route 104 junction, near Divernon, as a result of 18 to 24 inches of water over the highway. By 830 AM CDT, no additional flooding was reported. However, flood waters persisted in and around Divernon through 11 AM CDT. Flooding was also reported in Pawnee. Damage was estimated around $500,000.

What these are

Flash Flood
Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.
Thunderstorm Wind
Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
Hail
Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Illinois in 2001Every state in 2001This day in weather historyWarnings in Illinois, June 2001

Sources

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: 5251282, 5251440, 5251285, 5251287, 5251286, 5251284, 5251288, 5251289, 5251441, 5251380, 5251439, 5251442, 5251381, 5251382, 5251438, 5251385, 5251384, 5251283, 5251383.