Wisconsin, 2018

Flooding in Wisconsin, October 8 to 21, 2018

October 8 to 21, 2018 · NWS MKX · 4 events in 3 counties and zones

Above normal rainfall continued through the first ten days of October leading to additional river flooding.

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

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
$33,000
Crop damage
$9,000
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 MKX wrote it up.

Above normal rainfall continued through the first ten days of October leading to additional river flooding.

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 Milwaukee, WI wrote its last area forecast discussion before the first event at Oct 8, 5:20 AM CST, 25 minutes earlier.

Area forecast discussion, Oct 8, 5:20 AM CST, 25 minutes before
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Hazardous weather outlook, Oct 8, 3:13 AM CST, 2 hours 32 minutes before
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The radar

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

Open the radar archive at this moment

Event by event

4 flood. Local standard time, as filed.

Flood, Jefferson

When
October 8, 5:45 AM CST to October 21, 7:30 PM CST
Where
Jefferson County, 0.4 mi NW of Hoopers to 2.9 mi SSW of Hubbleton
Cause
Heavy Rain
Crop damage
$5,000
Reported by
Emergency Manager
Coordinates
43.104, -88.876

The Crawfish River reached minor flood stage, cresting at 8.05 ft. the evening of October 14th. There is widespread flooding of lowland and agricultural land. There is widespread flooding of roads in Riverbend Campground about 5 miles upstream of Milford.

Flood, Columbia

When
October 9, 3:00 PM CST to October 15, 8:15 PM CST
Where
Columbia County, 3.72 mi SSE of Lewiston to 5.14 mi N of Dekorra
Cause
Heavy Rain
Property damage
$1,000
Reported by
Emergency Manager
Coordinates
43.533, -89.593

The Baraboo River at Baraboo reached minor flood stage, cresting at 18.06 ft. the late morning of October 11th. The Wisconsin River was also flooding at this time which aided in agricultural and lowland flooding of the lower Baraboo River basin. Floodwaters covered portions of parking lots of local businesses near Hwy. 33 and I-90/94. Floodwaters also covered Tritz Rd. near Hwy. 33.

Flood, Lafayette

When
October 11, 9:00 AM CST to October 12, 1:00 PM CST
Where
Lafayette County, 1.18 mi ENE of Darlington to 1.04 mi N of Darlington
Cause
Heavy Rain
Property damage
$2,000
Crop damage
$4,000
Reported by
Emergency Manager
Coordinates
42.687, -90.099

The Pecatonica River at Darlington reached minor flood stage, cresting at 13.95 ft. the late evening of October 11th. Floodwaters cover a portion of Main Street in Darlington. A part of the Lafayette County Fairgrounds is flooded. Agricultural and lowland flooding is prevalent.

Flood, Columbia

When
October 11, 7:30 PM CST to October 16, 7:50 AM CST
Where
Columbia County, 3.64 mi SSW of Dekorra to 3.45 mi ENE of Dekorra
Cause
Heavy Rain
Property damage
$30,000
Reported by
Emergency Manager
Coordinates
43.422, -89.499

The Wisconsin River at Portage reached moderate flood stage, cresting at 18.02 ft. the early morning of October 15th. Water surrounds seasonal homes along Old River Road in Blackhawk Park. Old River Road, Blackhawk Road, and West Lake Road are flooded with several feet of water. West Lane Road in the Long Lake area has 4 feet of water over it in places. Water is over River Oaks Road and Oak Knoll Road at Hwy V in the Town of Dekorra. 12 homes are flooded on Hwy V. Floodwaters are at the base of Caledonia/Lewiston Levee on Old River Road.

What these are

Flood
Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Wisconsin in 2018Every state in 2018This day in weather historyWarnings in Wisconsin, October 2018

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 2026-10-01. Each event’s entry at NCEI: 798997, 799397, 799023, 799173.