Minnesota, 1998

Tornado and Flash Flooding in Minnesota, August 22, 1998

August 22, 1998 · NWS MPX · 8 events in 3 counties and zones

3 thunderstorm wind, 2 flash flood, 2 hail, 1 tornado, 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

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
8

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.

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

3 thunderstorm wind, 2 flash flood, 2 hail, 1 tornado. Local standard time, as filed.

Flash Flood, Hennepin

When
August 22, 5:00 PM CST to 9:00 PM CST
Where
Hennepin County, Bloomington
Reported by
UNKNOWN
Coordinates
45.005, -93.477 (the zone’s center; the record gives no point)

6 inches measured at NWS meteorologists home.

Flash Flood, Scott

When
August 22, 5:00 PM CST to 9:00 PM CST
Where
Scott County, Savage
Reported by
UNKNOWN
Coordinates
44.649, -93.536 (the zone’s center; the record gives no point)

Hail, Carver

When
August 22, 6:53 PM CST
Where
Carver County, Chanhassen
Measured
0.75 in hail
Reported by
OFFICIAL NWS OBS.
Coordinates
44.870, -93.530

Measured at NWS forecast office.

Tornado, Scott

When
August 22, 7:08 PM CST
Where
Scott County, Savage
Rating
F0
Path length
0.1 mi
Path width
50 yd
Reported by
LAW ENFORCEMENT
Coordinates
44.780, -93.330

Trailer blown over. Garage destroyed.

Thunderstorm Wind, Scott

When
August 22, 7:14 PM CST
Where
Scott County, Savage
Measured
52 kt (60 mph)
Reported by
NWS EMPLOYEE(OFF DUTY)
Coordinates
44.780, -93.330

Trees blown over.

Thunderstorm Wind, Hennepin

When
August 22, 7:25 PM CST
Where
Hennepin County, Bloomington
Measured
50 kt (58 mph)
Reported by
TRAINED SPOTTER
Coordinates
44.820, -93.320

Large branches down. Estimated windspeed.

Hail, Scott

When
August 22, 8:22 PM CST
Where
Scott County, Shakopee
Measured
1 in hail
Reported by
UNKNOWN
Coordinates
44.800, -93.520

Thunderstorm Wind, Scott

When
August 22, 8:22 PM CST
Where
Scott County, Shakopee
Measured
52 kt (60 mph)
Reported by
UNKNOWN
Coordinates
44.800, -93.520

What these are

Flash Flood
Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.
Hail
Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
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.
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 Minnesota in 1998Every state in 1998This day in weather historyThe tornado archive for Minnesota, 1998Warnings in Minnesota, August 1998

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: 5659576, 5659577, 5659503, 5659571, 5659572, 5659573, 5659574, 5659575.