Illinois, 2001

Damaging Winds in Illinois, August 9, 2001

August 9, 2001 · NWS ILX · 5 events in 5 counties and zones

5 thunderstorm wind, as filed by the National Weather Service.

Where it happened

Every event with a place to put it. 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

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
5

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 9, 1:20 PM CST, 4 hours 35 minutes earlier.

Area forecast discussion, Aug 9, 1:20 PM CST, 4 hours 35 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LINCOLN IL
230 PM CDT WED AUG 8 2001

MAIN CONCERNS TIMING OF SURFACE COLD FRONT AND ASSOCIATED
PRECIPITATION CHANCES THIS EVENING.

SURFACE ANAL AND RADAR MOSAIC SHOWS COLD FRONT STRETCHING FROM UP
MI...THRU SE IA...INTO CENT KS AND SFC DPS OF 78+ IN ERN IL.
REMNANTS OF BARRY ARE TRIGGERING CONVECTION ACROSS IN...INTO ERN
CWA. IN ADDITION...CONVECTION FORMING AHD OF THE FRONT IN WC IL.
18Z LAPS INDICATING CAPE OF 6000+ IN NRN CWA. 1745Z WV SHOWING S/W
IN WRN ONTATIO DROPPING SEWD...AND WILL GIVE THE FRONT A PUSH. MUCH
COOLER AN DRIER AIR BEHIND THE FRONT...WITH TEMPS IN THE LOWER 70S
AND DEP POINTS IN THE UPPER 40S TO LOWER 50S IN MN.

MODELS IN FAIRLY GOOD AGREEMENT WITH FRONTAL MOVEMENT...HOWEVER...
ETA DIGGING FRONTAL TROF TOO DEEP AT 18Z. MODELS SHOW FRONT MOVING
INTO NWRN CWA BY AROUND 00Z. SPC THINKS SEVERE WEATHER THREAT IS
GENERALLY ALONG AND N OF I-72. MAIN THREAT APPEARS TO BE DAMAGING
WINDS. PW OF 1.98...OFF MORNING SOUNDING INDICATES POTENTIAL FOR
+RA...WL KEEP HEAVY RAINFALL WORDING IN ZONES. FRONT WILL MOVE SOUTH
OF CWA FRIDAY MORNING. PRECIP MAY LINGER IN SE INTO EARLY FRIDAY
AFTERNOON SO WL KEEP POPS IN SE. STRONG NRN WIND FLOW WILL
TRANSPORT COOLER AND DRIER AIR FRIDAY. CLOUDS WILL LINGER INTO
FRIDAY BEHIND FRONT...HOWEVER SHOULD DISSIPATE LATE FRIDAY.

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

SPI EB 065/082 059/082 060 01800
PIA EB 063/081 058/081 059 01800
DEC EB 066/082 059/082 060 01800
CMI EB 062/080 058/080 059 01800
MTO EB 067/083 060/083 062 01820
LWV CE 068/085 066/085 064 01830

.ILX...NONE.

KELLY/FRIEDERS

The radar

The Quad Cities radar (KDVN), 76 km away, was scanning. The volume nearest the first event began at 23:52 UTC.

Open the radar archive at this moment

Event by event

5 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, Knox

When
August 9, 5:55 PM CST
Where
Knox County, Galesburg
Measured
52 kt (60 mph)
Reported by
TRAINED SPOTTER
Coordinates
40.950, -90.367

Thunderstorm Wind, Peoria

When
August 9, 7:00 PM CST to 7:03 PM CST
Where
Peoria County, Glasford
Measured
52 kt (60 mph)
Reported by
AMATEUR RADIO
Coordinates
40.567, -89.817

Several tree limbs and power lines were blown down, as well as a 90 year old barn near Glasford.

Thunderstorm Wind, Tazewell

When
August 9, 7:20 PM CST to 7:23 PM CST
Where
Tazewell County, Pekin
Measured
52 kt (60 mph)
Reported by
LAW ENFORCEMENT
Coordinates
40.567, -89.633

Power lines and trees were blown down in both locations.

Thunderstorm Wind, Mason

When
August 9, 7:30 PM CST
Where
Mason County, 4 mi SW of Manito
Measured
52 kt (60 mph)
Reported by
PARK/FOREST SERVICE
Coordinates
40.383, -89.817

Large tree blown down in Sand Ridge State Park.

Thunderstorm Wind, McLean

When
August 9, 8:10 PM CST to 8:11 PM CST
Where
McLean County, 2 mi N of Normal
Measured
50 kt (58 mph)
Reported by
NEWSPAPER
Coordinates
40.550, -89.000

Several trees were blown down.

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.

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, August 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: 5266159, 5266163, 5266160, 5266162, 5266161.