Illinois, 2001Flash Flood in Illinois, August 30, 2001
August 30, 2001 · NWS ILX · 1 event in 1 county or zone
1 flash flood, as filed by the National Weather Service.
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.
- 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
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 1
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 Aug 30, 1:57 PM CST, 3 hours 18 minutes earlier.
Area forecast discussion, Aug 30, 1:57 PM CST, 3 hours 18 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LINCOLN IL
257 PM CDT THU AUG 30 2001
TRWS POPPING UP ALONG OLD OUTFLOW BOUNDARY THAT EXTENDS FROM JUST E
OF CMI SOUTHWESTWARD TOWARD ST. LOUIS. MSAS ALSO SHOWS NICE AXIS OF
INSTABILITY AND MOISTURE CONVERGENCE IN THIS AREA.
AFTER THIS FIRST ROUND OF PCPN...WILL SEE MORE ASSOCIATED WITH
ACTUAL COLD FRONT. AS OF 19Z...CF EXTENDED FROM LS THRU C WI THEN
INTO ERN IA AND NWRN MO. ACTIVITY HAS FIRED IN SRN IA WESTWARD INTO
NWRN MO WITH SPC ISSUING A WATCH FOR THIS AREA. THESE RWS/TRWS WILL
BEGIN TO MOVE INTO WRN CWA BY 00Z. AS FOR TEMPS TONIGHT...SHOULD
REMAIN RATHER MILD WITH TEMPS IN THE 60S.
BY FRIDAY...CF WILL LINGER OVER OUR SERN COUNTIES...SO WILL KEEP
CHANCE POPS IN THIS AREA AS WELL AS OUR ERN ZONES. AS FOR REST OF
CWA...DRY AND COOLER CONDITIONS TO PREVAIL WITH HIGH TEMPS ONLY
AROUND 80.
RIDGE BUILDS IN BY FRIDAY NIGHT. WITH CLEAR SKIES AND LIGHT WINDS...
TEMPS SHOULD DROP INTO THE 50S...RATHER COOL FOR THIS TIME OF YEAR.
PLEASANT CONDITIONS WILL CONTINUE FOR THE REST OF THE HOLIDAY
WEEKEND...AS S/W THAT THREATENS AREA ON SUNDAY WEAKENS WITH SFC
RIDGE HOLDING ON...SO NO PCPN ON SUNDAY.
DRY WX WILL PERSIST INTO TUESDAY. HOWEVER BY WEDNESDAY...STRONGER
S/W AND DEVELOPING WF BOUNDARY WILL MOVE N INTO IL...BRINGING IN A
CHANCE FOR RWS AND TRWS WED AND THU.
...PRELIMINARY CCF FOR COORDINATION PURPOSES ONLY...
SPI BA 063/081 053/077 054 68+20
PIA BA 061/080 051/075 053 68+20
DEC BA 063/081 053/076 053 68+20
CMI BA 064/081 052/076 052 68+30
MTO BA 063/083 054/078 052 68+40
LWV EA 065/084 056/079 053 68641
.ILX...NONE.
BYRD
Flash Flood, Macon
- When
- August 30, 5:15 PM CST to 7:00 PM CST
- Where
- Macon County, Decatur
- Reported by
- EMERGENCY MANAGER
- Coordinates
- 39.860, -88.962 (the zone’s center; the record gives no point)
A severe thunderstorm produced a wet micro-burst over the city of Decatur shortly after 6 pm CDT. Reports of flooding began to come in around 515 pm CDT as roads in the town quickly became water covered, resulting in numerous closures for a few hours. No injuries or rescues resulted from the flooding. Radar estimates of 4 to 6 inches of rain fell between 6 pm and 8 pm CDT. An ASOS unit, located on the east side of Decatur, reported 2.44 inches in 1 hour, with 1.73 inches falling in a 30 minute period. Based on the known problem with tipping buckets and heavy rainfall, the amount is likely in excess of 4.5 inches. The ASOS measured the rainfall rate close to 0.10 inches/minute during the 30 minute period when most of the rain occurred.
- 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.
After NWS Directive 10-1605, the rules offices file Storm Data by.
- Hail and Damaging Winds in Virginia, August 30, 20012 deaths · $17,000 · 52 kt wind · 9 events
- Rip Current in California, August 30, 20011 death · 1 event
- Flash Flooding in Texas, August 30, 20012 injured · $2.2 million · 4 events
- Tornadoes and Flash Flooding in Texas, August 30 to 31, 2001$1.7 million · F0 · 14 events
- Flash Flooding and Hail in Maryland, August 30, 20011 injured · $90,000 · 1 in hail · 10 events
- Flash Flood in Texas, August 30, 2001$200,000 · 1 event
- Damaging Wind in Michigan, August 30, 2001$100,000 · 60 kt wind · 1 event
- Flash Flood in Texas, August 30, 2001$80,000 · 1 event
- Flash Flood in Texas, August 30, 2001$30,000 · 1 event
- Damaging Wind in Missouri, August 30, 2001$25,000 · 55 kt wind · 1 event
- Hail and Damaging Winds in Missouri, August 30, 2001$15,000 · 52 kt wind · 7 events
- Flash Flooding in Texas, August 30, 200111 events
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: 5266158.