Hail, Madison
- When
- April 10, 9:00 PM CST
- Where
- Madison County, Edwardsville
- Measured
- 1.75 in hail
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 38.817, -89.950
Hail and Damaging Wind in Illinois, April 10, 2001
The Heavy Precipitation Supercell that produced tornadoes and damaging hail across eastern Missouri continued east into Illinois. Although it weakened, it still produced hail from quarter to golf ball size across Madison County.
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
- $20,000
- Crop damage
- None recorded
- Events
- 4
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 happened
The episode as NWS LSX wrote it up.
The Heavy Precipitation Supercell that produced tornadoes and damaging hail across eastern Missouri continued east into Illinois. Although it weakened, it still produced hail from quarter to golf ball size across Madison County. Numerous homes and automobiles were damaged. In Marine, a 50-year old elm tree was blown onto a home while a 60-year old mulberry tree was blown onto the garage. It took 3 days for a tree service company to remove the trees.
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 Apr 10, 2:45 PM CST, 6 hours 15 minutes earlier.
Area forecast discussion, Apr 10, 2:45 PM CST, 6 hours 15 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE ST LOUIS MO 345 PM CDT TUE APR 10 2001 LATEST SFC ANLYS SHWG CDFNT STRETCHING FM NR KEMP TO NORTH OF KCOU AND KSTL TO NR KLAF WITH LRG SCALE OUTFLOW BNDRY FM MRNG CNVCTN VERY EVIDENT ON RADAR AND STLT FM JUST SOUTH OF KJEF THRU FRANKLIN CO TO SOUTH OF KMVN. AMS SOUTH OF THE OB HAS BCM PRETTY UNSTBL WITH CAPES AOA 2000 J/KG. SCT TSTRMS BGNG TO DVLP ON NWD MOVG OUTFLOW BNDRY ATTM. OTW LINEAR CLUSTER OF STRMS FM NE KS THRU WC MO BGNG TO INTERACT WITH OB ON THE WRN FRINGE. LLJ ALREADY BGNG TO BACK TO MORE SLY AND THIS COMBINED WITH SOME ASCENT ASSOCD WITH THE SHRTWV LIFTING THRU NE KS AND THE TWO BNDRYS SHUD LEAD TO BEST CNVCTV THREAT OVR THE NRN HALF OF THE CWFA. CONVECTIVE TRENDS OVR SE MO/SW IL A BIT VAGUE BUT LESSER THAN FURTHER NORTH. SOME HVY RN THREAT OVR NE MO/WC IL BUT LONGEVITY AND FAST MVMNT PRECLUDING ISSUANCE OF ANOTHER FFA ATTM. LCL HVY RAFL LAST NGT WAS PRETTY ISOLD...AND WL LET EVNG SHIFT ASSESS THE NEED FOR AN FFA SHUD IT ARISE. STILL LOOKS LIKE A PRETTY GOOD SQLN SHUD EVOLVE ACRS THE WRN PLAINS THIS EVENING...SWEEPING EWD IN ADVANCE OF THE EJECTING SW UPR LOW/TROF. BLV SQLN WL BE OVR ERN KS IN THE MRNG AND SHUD BE IN A WKNG PHASE. EITHER NEW LN OR REINTENSIFICATION OF THIS OLD SQLN SHUD OCCUR TMW IN ADVANCE OF THE DRYLN AS LRG SCALE FRCG INCRSS WITH LIFTING UPR TROF AND LOW LVLS UNDERGO DIURNAL DESTABILIZATION. SVR THREAT CERTAINLY BEARS WATCHING CLOSELY WITH STG WND FIELDS AND DP SHEAR. OTHER THING TO WATCH ON WED IS WNDS. THEY CUD HIT ADVSRY CRITERIA TMW AFT...SPCLY IN THE WAKE OF THE SFC DRYLN WHERE DP MXG BENEATH MID LVL DRY SLOT WL ENHANCE ALREADY TIGHTNING PRES GRAD. WL LET THE MID SHIFT ASSESS THIS NEED AS IT MAY BE NEEDED FOR EVNG AS WELL. DRYLN SHUD BE BTWN COU-STL BY 00Z THURS AND WL CONT MENTION OF EVNG POPS AS A RESULT. STEADY AS SHE GOES LATER PDS WITH NEW A VN INDCTG BEST PCPN THREAT ON FRI PROBABLY DURING THE NGT FM STL SWD. TMPS RETURN TO MORE SEASONABLE NORMS FOR THE WKND. .STL...NONE GLASS
The radar
The St Louis radar (KLSX), 65 km away, was scanning. The volume nearest the first event began at 03:01 UTC.
Event by event
3 hail, 1 thunderstorm wind. Local standard time, as filed.
Hail, Madison
- When
- April 10, 9:25 PM CST
- Where
- Madison County, 1 mi E of Troy
- Measured
- 1 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 38.733, -89.850
Hail, Madison
- When
- April 10, 9:30 PM CST
- Where
- Madison County, 5 mi NW of Highland
- Measured
- 1.75 in hail
- Reported by
- AMATEUR RADIO
- Coordinates
- 38.783, -89.733
Thunderstorm Wind, Madison
- When
- April 10, 9:30 PM CST
- Where
- Madison County, Marine
- Measured
- 55 kt (63 mph)
- Property damage
- $20,000
- Reported by
- NEWSPAPER
- Coordinates
- 38.783, -89.783
What these are
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
- 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
- Tornadoes and Damaging Winds in Oklahoma, April 10 to 11, 2001
- High Wind in Texas, April 10, 2001
- Tornadoes and Hail in Kansas, April 10 to 11, 2001
- Tornado in Missouri, April 10, 2001
- Hail in Missouri, April 10, 2001
- Tornadoes and Hail in Texas, April 10, 2001
- Hail in Nebraska, April 10, 2001
- Hail in Missouri, April 10, 2001
- Tornadoes and Hail in Oklahoma, April 10, 2001
- Damaging Wind in Iowa, April 10, 2001
- Tornado in Illinois, April 10, 2001
- Lightning Strike in Illinois, April 10, 2001
More
Every storm in Illinois in 2001Every state in 2001This day in weather historyWarnings in Illinois, April 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: 5243122, 5243123, 5243124, 5243125.