Flash Flooding and Flooding in Wisconsin, July 7 to 8, 2000

Name: Flash Flooding and Flooding in Wisconsin, July 7 to 8, 2000
Start: 2000-07-07T18:00
End: 2000-07-08T18:00
Location: Wisconsin

July 7 to 8, 2000 · NWS GRB · 18 events in 9 counties and zones

A nearly stationary front across Wisconsin combined with upper air support and abundant moisture to produce a prolonged period of thunderstorms. The heaviest rainfall occurred in an area that extended from southern Vilas county southeast into Manitowoc county.

Where it happened

Every event with a place to put it; 14 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: $333,000
Crop damage: None recorded
Events: 18

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 GRB wrote it up.

A nearly stationary front across Wisconsin combined with upper air support and abundant moisture to produce a prolonged period of thunderstorms. A few of the storms contained high winds and hail but flooding from heavy rainfall caused the majority of the problems.The heaviest rainfall occurred in an area that extended from southern Vilas county southeast into Manitowoc county. Rainfall totals in this area ranged from 2 to 4 inches for the 24 hour period ending at 6:00 AM CST on the morning of the 8th. Flooding of roads and/or basements was reported in the area from Pelican Lake to Rhinelander (Oneida co.), around Antigo and Deerbrook (Langlade co.), Crandon (Forest co.), Keshena (Menominee co.), Oconto Falls (Oconto co.), Green Bay and De Pere (Brown co.) and Manitowoc (Manitowoc co.). Small streams and creeks overflowed their banks and rural areas suffered some crop damage.Green Bay (Brown co.) received 4.12 inches of rain on July 8th and 4.65 inches of rain in a 24 hour period spanning July 7th and 8th. These totals set a new rainfall records from July 8th and for the month of July respectively. The previous record 24 hour total was 4.39 inches set on July 23, 1912.At least 25,000 customers lost electrical power as a result of the storms. Strong winds downed trees in Wittenberg (Shawano co.), Tigerton (Shawano co.) and Marion (Waupaca co.).

The radar

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

Open the radar archive at this moment

Event by event

6 flash flood, 5 flood, 3 thunderstorm wind, 2 lightning, 1 heavy rain, 1 hail. Local standard time, as filed.

Heavy Rain, Brown

When: July 7, 6:00 PM CST to July 8, 6:00 PM CST
Where: Brown forecast zone
Reported by: OFFICIAL NWS OBS.
Coordinates: 44.474, -87.993 (the zone’s center; the record gives no point)

Flash Flood, Oneida

When: July 8, 2:35 AM CST to 4:00 AM CST
Where: Oneida County, East Portion
Property damage: $180,000
Reported by: LAW ENFORCEMENT
Coordinates: 45.706, -89.522 (the zone’s center; the record gives no point)

Flash Flood, Langlade

When: July 8, 3:55 AM CST to 5:00 AM CST
Where: Langlade County, Antigo
Reported by: LAW ENFORCEMENT
Coordinates: 45.262, -89.072 (the zone’s center; the record gives no point)

Flood, Brown

When: July 8, 4:05 AM CST to 6:30 AM CST
Where: Brown County, Green Bay
Reported by: LAW ENFORCEMENT
Coordinates: 44.474, -87.993 (the zone’s center; the record gives no point)

Flash Flood, Oconto

When: July 8, 4:40 AM CST to 6:00 AM CST
Where: Oconto County, Oconto Falls
Reported by: LAW ENFORCEMENT
Coordinates: 44.999, -88.221 (the zone’s center; the record gives no point)

Flash Flood, Menominee (C)

When: July 8, 4:59 AM CST to 6:00 AM CST
Where: Menominee (C) County, Keshena
Reported by: LAW ENFORCEMENT
Coordinates: 45.004, -88.710 (the zone’s center; the record gives no point)

Flash Flood, Manitowoc

When: July 8, 5:41 AM CST to 6:30 AM CST
Where: Manitowoc County, Manitowoc
Reported by: LAW ENFORCEMENT
Coordinates: 44.091, -87.700 (the zone’s center; the record gives no point)

Thunderstorm Wind, Shawano

When: July 8, 8:18 AM CST
Where: Shawano County, Wittenberg
Measured: 50 kt (58 mph)
Reported by: LAW ENFORCEMENT
Coordinates: 44.817, -89.150

Thunderstorm Wind, Shawano

When: July 8, 8:30 AM CST
Where: Shawano County, Tigerton
Measured: 50 kt (58 mph)
Reported by: LAW ENFORCEMENT
Coordinates: 44.733, -89.050

Thunderstorm Wind, Waupaca

When: July 8, 8:45 AM CST
Where: Waupaca County, Marion
Measured: 50 kt (58 mph)
Reported by: LAW ENFORCEMENT
Coordinates: 44.667, -88.883

Lightning, Brown

When: July 8, 9:45 AM CST
Where: Brown County, Ashwaubenon
Reported by: NEWSPAPER
Coordinates: 44.474, -87.993 (the zone’s center; the record gives no point)

Minor fire damage to business

Lightning, Oneida

When: July 8, 11:00 AM CST
Where: Oneida County, Minocqua
Reported by: NEWSPAPER
Coordinates: 45.706, -89.522 (the zone’s center; the record gives no point)

Garage destroyed and vehicle damaged

Flood, Oneida

When: July 8, 11:06 AM CST to 1:00 PM CST
Where: Oneida County, Rhinelander
Reported by: LAW ENFORCEMENT
Coordinates: 45.706, -89.522 (the zone’s center; the record gives no point)

Flood, Oneida

When: July 8, 11:55 AM CST to 1:00 PM CST
Where: Oneida County, Pelican Lake
Reported by: LAW ENFORCEMENT
Coordinates: 45.706, -89.522 (the zone’s center; the record gives no point)

Flood, Langlade

When: July 8, 11:59 AM CST to 1:00 PM CST
Where: Langlade County, Deerbrook
Reported by: LAW ENFORCEMENT
Coordinates: 45.262, -89.072 (the zone’s center; the record gives no point)

Flood, Oconto

When: July 8, 12:12 PM CST to 1:00 PM CST
Where: Oconto County, Oconto Falls
Reported by: LAW ENFORCEMENT
Coordinates: 44.999, -88.221 (the zone’s center; the record gives no point)

Hail, Forest

When: July 8, 4:20 PM CST
Where: Forest County, Mole Lake
Measured: 0.88 in hail
Reported by: GENERAL PUBLIC
Coordinates: 45.483, -89.000

Flash Flood, Forest

When: July 8, 5:50 PM CST
Where: Forest County, South Portion
Property damage: $154,000
Reported by: LAW ENFORCEMENT
Coordinates: 45.667, -88.770 (the zone’s center; the record gives no point)

What these are

Heavy Rain: Rainfall totals unusual for the place and season that did not produce a flood.
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.
Flood: Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.
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.
Lightning: A lightning strike that killed, injured or caused damage.
Hail: Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.

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

The same day elsewhere

Every storm in Wisconsin in 2000 Every state in 2000 This day in weather history Warnings in Wisconsin, July 2000

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: 5162665, 5162584, 5162585, 5162664, 5162586, 5162587, 5162663, 5162580, 5162581, 5162582, 5162667, 5162666, 5162588, 5162589, 5162660, 5162661, 5162583, 5162662.