Thunderstorm Wind, Brown
- When
- August 22, 5:45 PM CST
- Where
- Brown County, Mt Sterling
- Measured
- 52 kt (60 mph)
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 39.983, -90.767
The County Sheriff reported trees down on Highway 99.
Damaging Wind in Illinois, August 22, 2001
1 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
The toll
- 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 St. Louis, MO wrote its last area forecast discussion before the first event at Aug 22, 2:05 PM CST, 3 hours 40 minutes earlier.
Area forecast discussion, Aug 22, 2:05 PM CST, 3 hours 40 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE ST LOUIS MO 305 PM CDT WED AUG 22 2001 FCST PROB FOR THE AFTN PACKAGE IS RAIN CHCS NXT COUPLE DAYS. 12Z MODELS IN FAIR AGRMT...THOUGH DIFFER ON THE SPECIFICS AND EXACT POSNS OF FEATURES. ON UPR FEATURES...ETA IS MORE AGGRESSIVE ON MCV FEATURE OVR SWRN IA ATTM...PUSHING IT STRAIGHT SWD DWN MS RVR TWDS STL LATE TNGT...WHILE NGM/AVN TEND TO CONT EWD PROGRESSION INTO ERN IL. ALSO...AVN IS FURTHER S THAN ETA ON POSN OF STG UPR S/W OVR CNTRL PLNS. ON SFC FEATURES...ETA AGAIN MORE AGGRESSIVE ON SWD PROPAGATION OF FNT INTO FA...TAKING IT TO STL BY 12Z...WHILE NGM/AVN HOLD IT BCK TO NRN MO. THESE TRENDS CONT THRU 48HRS...WITH ETA FASTEST...AVN MIDDLE OF ROAD...AND NGM FNT BCMG STNRY ACRS NRN MO IN ADVANCE OF NXT S/W. WHILE EXPECT CONVECTION TNGT TO BCM OUTFLOW DOMINATED ESP IN IL...ETA SOMETIMES TENDS TO OVERDO THESE SITNS AND PROPAGATES TOO FAR S. PREFER COMP OF AVN/ETA FNT THRU 12Z/FRI. GIVEN INFLUENCE OF /KICKER/ SYS OVR FAR NRN PLNS ON S/W OVR CNTRL PLNS... ETA SOLN TENDS TO BE MORE REALISTIC IN BRINGING IT SLOLY NWD TWDS NRN MO...RATHER THAN AVN SOLN OF DIPPING IT FURTHER S TWDS SRN MO. IN SUMMARY...PREFER AVN FOR TNGT AND THU (XCPT WL ADD OUTFLOW COMP TO FNT LATE TNGT ESP IN IL)...THEN LEAN MORE TWDS ETA BY FRI. FOR TNGT...PWATS ARND 2 INCHES WITH XPCTD DVLPMT OF LLVL JET AND E-W LLVL FNTL BDRY WL CONTRIBUTE TO TRAINING CELLS WITH HVY RAFL POTNL. FFG VALUES ARE RATHER HI...WITH LOWEST NUMBERS FOR 3HRS BEING 3.5 INCHES IN NERN MO. WL FOREGO ANY FFA AND INSTEAD MENTION LCLLY HVY RAFL PSBL. SVR TSTM THREAT IN NRN FA WL MAINLY CNTR ARND DAMAGING WND PSBLTIES MAINLY THIS EVNG WITH UNIDIRECTIONAL 0-6KM SHEAR ARND 15-20 M/S. MOST PCPN DVLPMT THIS EVNG IN FA XPCTD TO BE ACRS FAR NRN ZONES WHICH ARE CLOSEST TO MCV TRAVELLING EWD AND LLVL FNTL BDRY. RGT ENTR RGN OF UPR JET AFT MDNGT AND LLVL WAA ZONE WL HELP CONT PCPN THRU MOST OF NITE...THOUGH BEST DYNAMICS AND INSTAB WL BE FOUND THIS EVNG. ON THU AND THU NGT...MOST OF PCPN THREAT SHD BE ARND I-70 CORR AND SWD AS FNT PUSHES S. FRI AND FRI NGT...NEW THREAT FOR RAFL WL EXIST AS RATHER VIGOROUS S/W UNDERCUTS AMPLIFYING RDG IN NRN STREAM. SFC REFLECTION WL CONSIST OF LOW TO TRACK TO NERN KS WITH ASSOC WRMFNT EXTDG EWD INTO CNTRL MO. INCRSG H850 THTA-E ADVCTN AND RE-APPEARANCE OF LLVL JET WL COMBINE FOR INCRSG POPS FOR NRN/WRN ZONES. GUIDANCE TEMPS CLOSE THRU-OUT SHORT TERM PD...AND NO MAJOR PROBS WITH THEM. .STL...NONE TES
The radar
The Lincoln radar (KILX), 123 km away, was scanning. The volume nearest the first event began at 23:47 UTC.
Event by event
1 thunderstorm wind. Local standard time, as filed.
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
- Lightning Strike in Wisconsin, August 22, 2001
- Heat in Texas, August 22, 2001
- Tropical Storm in Puerto Rico, August 22 to 23, 2001
- Hail and Damaging Winds in Indiana, August 22, 2001
- Flash Flooding and Hail in Michigan, August 22, 2001
- Hail and Damaging Winds in Illinois, August 22, 2001
- Flooding and Damaging Winds in Wisconsin, August 22, 2001
- Flood in Colorado, August 22, 2001
- Hail and Damaging Winds in Kansas, August 22, 2001
- Flooding and Hail in Kansas, August 22 to 23, 2001
- Tropical Storm in U.S. Virgin Islands, August 22 to 23, 2001
- Heavy Rain in Oregon, August 22 to 23, 2001
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: 5262816.