Thunderstorm Wind, Warren
- When
- May 17, 2:00 AM CST
- Where
- Warren County, Monmouth
- Measured
- 52 kt (60 mph)
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 40.917, -90.633
Law enforcement estimated winds reached 60 mph for nearly 5 minutes.
Flooding and Damaging Wind in Illinois, May 17, 2001
2 flood, 1 thunderstorm wind, as filed by the National Weather Service.
Where it happened
Every event with a place to put it; 2 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
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 3
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 Quad Cities, IA wrote its last area forecast discussion before the first event at May 17, 1:33 AM CST, 27 minutes earlier.
Area forecast discussion, May 17, 1:33 AM CST, 27 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE QUAD CITIES IA IL 233 AM CDT THU MAY 17 2001 SYNOPTIC PICTURE THIS MORNING SHOWS MODERATELY ZONAL FLOW ACROSS NORTHERN HALF OF U.S...EXCEPT FOR STRONG SHORT WAVE MOVING THROUGH EASTERN DAKOTAS. AT THE SURFACE...A STATIONARY FRONT EXTENDS ALONG IA/MO LINE INTO WEST CENTRAL IL. STRONG TSTMS...WITH WINDS GUSTING TO 40 MPH AND SMALL HAIL...ARE BEGINNING TO TRAIN JUST NORTH OF THIS FRONT ACROSS SOUTHEAST IA. FUNNEL CLOUDS HAVE BEEN REPORTED ALONG LARGE OUTFLOW BOUNDARY NOW MOVING INTO WEST CENTRAL ILLINOIS. THIS IS AREA THAT WAS POUNDED A FEW DAYS AGO BY HEAVY RAINS. MODELS INITIALIZED WELL AT 500H AND THE SURFACE AT 00Z. PRIMARY FORECAST CONCERNS THIS PACKAGE ARE IN SHORT TERM...TODAY AND POSSIBLY THIS EVENING...WITH FRONT. SHORT-RANGE MODELS ARE IN DISAGREEMENT ON HOW TO HANDLE FRONT TODAY. AVN PUSHES IT SOUTH DURING DAY...AND BY 00Z INTO CENTRAL MISSOURI TO SOUTH CENTRAL ILLINOIS...WHERE FRONT BECOMES STATIONARY AROUND 06Z FOR A LITTLE WHILE AS LOW MOVES EAST ALONG FRONT FROM MISSOURI INTO ILLINOIS. ETA AND NGM KEEP FRONT FURTHER NORTH THROUGH 18Z...ACROSS CENTRAL AND SOUTH PORTIONS OF FA RESPECTIVELY... THEN COME CLOSER TO AVN BY 00Z AND 06Z. ALL MODELS SHOVE FRONT WELL SOUTHEAST BY 12Z FRI. LOCALLY HEAVY RAINS THIS MORNING MAY PROMPT ISSUANCE OF FLASH FLOOD WATCH THIS MORNING CENTRAL AND SOUTH. LOOKING FURTHER AHEAD...HIGH SETTLE OVER FORECAST AREA FRIDAY AND SATURDAY. THINGS BECOME INTERESTING AGAIN SATURDAY NIGHT OR SUNDAY... WITH MEDIUM RANGE MODELS INDICATED SURFACE LOW MOVING THROUGH AREA...OR JUST SOUTH...SUNDAY...WITH 500H SHORT WAVES SUNDAY AND MONDAY. DETAILS VARY SIGNIFICANTLY BETWEEN MRF/EUROPEAN/UK. WILL EMPHASIZE RAIN TODAY...ESPECIALLY CENTRAL AND SOUTH...AND ADD POPS THIS EVENING. WILL KEEP WITH CURRENT ZONES IN FAVORING COOLER MAV. .DVN... IA...NONE. IL...NONE. MO...NONE. REA
The radar
The Quad Cities radar (KDVN), 77 km away, was scanning. The volume nearest the first event began at 08:01 UTC.
Event by event
2 flood, 1 thunderstorm wind. Local standard time, as filed.
Flood, Mercer
- When
- May 17, 7:00 AM CST
- Where
- Mercer County, New Boston
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 41.205, -90.741 (the zone’s center; the record gives no point)
Heavy rain of near 3 inches brought Edwards river out of it's bank near New Boston.
Flood, Mercer
- When
- May 17, 7:00 AM CST
- Where
- Mercer County, Keithsburg
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 41.205, -90.741 (the zone’s center; the record gives no point)
Heavy rain of near 3 inches brought Pope creek out of it's bank near Keithsburg, closing a few gravel roads. Back water from the flooded Mississippi river also contributed to the minor flooding along the creek.
What these are
- 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.
- Flood
- Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Flash Flooding and Hail in Oklahoma, May 17 to 18, 2001
- Hail and Damaging Winds in Texas, May 17 to 18, 2001
- Hail and Damaging Winds in Colorado, May 17 to 20, 2001
- Flash Flooding in West Virginia, May 17, 2001
- Flash Flooding and Hail in Ohio, May 17 to 19, 2001
- Hail and Damaging Winds in West Virginia, May 17, 2001
- Damaging Winds in Texas, May 17 to 18, 2001
- Flash Flood in West Virginia, May 17, 2001
- Flash Flooding and Hail in Ohio, May 17, 2001
- Flash Flooding in Kentucky, May 17, 2001
- Flash Flood and Hail in West Virginia, May 17, 2001
- Flash Flood in Missouri, May 17, 2001
More
Every storm in Illinois in 2001Every state in 2001This day in weather historyWarnings in Illinois, May 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: 5250790, 5250791, 5250792.