Hail, La Salle
- When
- March 27, 12:05 AM CST
- Where
- La Salle County
- Measured
- 0.75 in hail
- Coordinates
- 41.120, -88.830
Tornadoes and Hail in Illinois, March 27, 1991
21 hail, 11 thunderstorm wind, 6 tornado, 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
- 7
- Property damage
- $75 million
- Crop damage
- None recorded
- Events
- 38
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.
Event by event
21 hail, 11 thunderstorm wind, 6 tornado. Local standard time, as filed.
Hail, Knox
- When
- March 27, 12:11 AM CST
- Where
- Knox County
- Measured
- 1 in hail
- Coordinates
- 40.950, -90.370
Hail, Grundy
- When
- March 27, 12:15 AM CST
- Where
- Grundy County
- Measured
- 0.75 in hail
- Coordinates
- 41.220, -88.500
Hail, Will
- When
- March 27, 12:23 AM CST
- Where
- Will County
- Measured
- 0.75 in hail
- Coordinates
- 41.450, -87.880
Hail, La Salle
- When
- March 27, 1:15 AM CST
- Where
- La Salle County
- Measured
- 0.75 in hail
- Coordinates
- 41.220, -89.080
Hail, La Salle
- When
- March 27, 1:34 AM CST
- Where
- La Salle County
- Measured
- 1 in hail
- Coordinates
- 41.120, -88.830
Hail, Cook
- When
- March 27, 2:35 AM CST
- Where
- Cook County
- Measured
- 1 in hail
- Coordinates
- 41.880, -87.600
Thunderstorm Wind, Kane
- When
- March 27, 7:10 AM CST
- Where
- Kane County
- Coordinates
- 42.020, -88.320
Thunderstorm Wind, Cook
- When
- March 27, 7:20 AM CST
- Where
- Cook County
- Coordinates
- 42.130, -88.180
Hail, Stephenson
- When
- March 27, 1:09 PM CST
- Where
- Stephenson County
- Measured
- 0.75 in hail
- Coordinates
- 42.220, -89.700
Hail, Carroll
- When
- March 27, 1:10 PM CST
- Where
- Carroll County
- Measured
- 1.75 in hail
- Coordinates
- 42.100, -89.980
Hail, Whiteside
- When
- March 27, 1:30 PM CST
- Where
- Whiteside County
- Measured
- 1.75 in hail
- Coordinates
- 41.620, -89.700
Thunderstorm Wind, Will
- When
- March 27, 1:45 PM CST
- Where
- Will County
- Coordinates
- 41.450, -87.880
Hail, Lee
- When
- March 27, 1:46 PM CST
- Where
- Lee County
- Measured
- 1.5 in hail
- Coordinates
- 41.830, -89.480
Hail, Winnebago
- When
- March 27, 1:49 PM CST
- Where
- Winnebago County
- Measured
- 0.75 in hail
- Coordinates
- 42.200, -89.100
Hail, Boone
- When
- March 27, 2:08 PM CST
- Where
- Boone County
- Measured
- 0.75 in hail
- Coordinates
- 42.250, -88.850
Hail, McHenry
- When
- March 27, 2:20 PM CST
- Where
- McHenry County
- Measured
- 0.88 in hail
- Coordinates
- 42.420, -88.620
Hail, McHenry
- When
- March 27, 2:21 PM CST
- Where
- McHenry County
- Measured
- 0.88 in hail
- Coordinates
- 42.320, -88.450
Hail, Boone
- When
- March 27, 2:25 PM CST
- Where
- Boone County
- Measured
- 1 in hail
- Coordinates
- 42.250, -88.850
Hail, McHenry
- When
- March 27, 2:53 PM CST
- Where
- McHenry County
- Measured
- 1 in hail
- Coordinates
- 42.320, -88.450
Hail, De Kalb
- When
- March 27, 3:03 PM CST
- Where
- De Kalb County
- Measured
- 1.75 in hail
- Coordinates
- 41.930, -88.750
Thunderstorm Wind, Adams
- When
- March 27, 3:15 PM CST
- Where
- Adams County
- Measured
- 58 kt (67 mph)
- Coordinates
- 39.930, -91.400
Thunderstorm Wind, Peoria
- When
- March 27, 3:16 PM CST
- Where
- Peoria County
- Measured
- 50 kt (58 mph)
- Coordinates
- 40.670, -89.680
Hail, Kane
- When
- March 27, 3:22 PM CST
- Where
- Kane County
- Measured
- 1 in hail
- Coordinates
- 41.870, -88.450
Thunderstorm Wind, Cook
- When
- March 27, 3:35 PM CST
- Where
- Cook County
- Coordinates
- 42.120, -87.900
Tornado, Will
- When
- March 27, 3:50 PM CST
- Where
- Will County
- Rating
- F0
- Path length
- 3 mi
- Path width
- 50 yd
- Coordinates
- 41.700, -88.270
Thunderstorm Wind, Du Page
- When
- March 27, 3:50 PM CST
- Where
- Du Page County
- Coordinates
- 41.780, -88.250
Hail, Du Page
- When
- March 27, 3:53 PM CST
- Where
- Du Page County
- Measured
- 0.75 in hail
- Coordinates
- 41.800, -88.000
Thunderstorm Wind, McHenry
- When
- March 27, 3:54 PM CST
- Where
- McHenry County
- Measured
- 54 kt (62 mph)
- Coordinates
- 42.320, -88.450
Tornado, Will
- When
- March 27, 3:55 PM CST
- Where
- Will County
- Rating
- F3
- Path length
- 3 mi
- Path width
- 200 yd
- Property damage
- $25 million
- Coordinates
- 41.580, -88.100
Thunderstorm Wind, Cook
- When
- March 27, 3:56 PM CST
- Where
- Cook County
- Measured
- 73 kt (84 mph)
- Coordinates
- 41.980, -87.900
Tornado, Will
- When
- March 27, 4:02 PM CST
- Where
- Will County
- Rating
- F3
- Path length
- 2.8 mi
- Path width
- 200 yd
- Property damage
- $25 million
- Coordinates
- 41.630, -88.070
Tornado, Cook
- When
- March 27, 4:07 PM CST
- Where
- Cook County
- Rating
- F3
- Path length
- 9.2 mi
- Path width
- 200 yd
- Injuries
- 7 direct, 0 indirect
- Property damage
- $25 million
- Coordinates
- 41.670, -88.020
Tornado, Kankakee
- When
- March 27, 4:10 PM CST
- Where
- Kankakee County
- Rating
- F1
- Path length
- 0.5 mi
- Path width
- 50 yd
- Coordinates
- 41.250, -87.830
Hail, Cook
- When
- March 27, 4:13 PM CST
- Where
- Cook County
- Measured
- 1 in hail
- Coordinates
- 42.030, -87.720
Thunderstorm Wind, Cook
- When
- March 27, 4:30 PM CST
- Where
- Cook County
- Coordinates
- 41.500, -87.630
Tornado, Will
- When
- March 27, 4:37 PM CST
- Where
- Will County
- Rating
- F0
- Path length
- 0.5 mi
- Path width
- 50 yd
- Property damage
- $3,000
- Coordinates
- 41.420, -87.730
Thunderstorm Wind, Peoria
- When
- March 27, 4:51 PM CST
- Where
- Peoria County
- Measured
- 59 kt (68 mph)
- Coordinates
- 40.670, -89.680
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.
- Tornado
- A violently rotating column of air in contact with the ground and extending from a thunderstorm, filed with its path, width and Fujita or Enhanced Fujita rating from the damage survey.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Tornadoes and Hail in Michigan, March 27, 1991
- Tornadoes and Hail in Indiana, March 27, 1991
- Tornado and Hail in Ohio, March 27, 1991
- Tornadoes and Hail in Wisconsin, March 27, 1991
- Tornadoes and Hail in Iowa, March 27, 1991
- Tornado and Hail in Kansas, March 27, 1991
- Tornado and Hail in Tennessee, March 27, 1991
- Tornadoes in California, March 27, 1991
- Hail and Damaging Winds in Kentucky, March 27, 1991
- Hail and Damaging Winds in Alabama, March 27, 1991
- Hail and Damaging Winds in Texas, March 27, 1991
- Damaging Winds in Missouri, March 27, 1991
More
Every storm in Illinois in 1991Every state in 1991This day in weather historyThe tornado archive for Illinois, 1991Warnings in Illinois, March 1991
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: 10003648, 10003649, 10003650, 10003651, 10003652, 10003653, 10003654, 10004504, 10004716, 10004717, 10004718, 10004719, 10004720, 10004721, 10004722, 10004723, 10004724, 10004725, 10004726, 10004727, 10004728, 10004729, 10004730, 10004731, 10004732, 10004733, 10004734, 10004735, 10004736, 10004737, 10004738, 10004739, 10004740, 10004741, 10004742, 10004743, 10004744, 10004745.