Wisconsin, 1999

Heat in Wisconsin, July 4 to 5, 1999

July 4 to 5, 1999 · NWS ARX · 13 events in 13 counties and zones

Temperatures reaching 95 to 100 combined with high humidity levels to produce heat indices of 105 to 115 over the Fourth of July holiday. Local hospitals reported treating a few people for heat exhaustion, but there were no deaths related to the excessive heat and humidity.

Where it happened

Every event with a place to put it; 13 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

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
13

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 ARX wrote it up.

Temperatures reaching 95 to 100 combined with high humidity levels to produce heat indices of 105 to 115 over the Fourth of July holiday. Local hospitals reported treating a few people for heat exhaustion, but there were no deaths related to the excessive heat and humidity.

The radar

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

Open the radar archive at this moment

Event by event

13 heat. Local standard time, as filed.

Heat, Adams

When
July 4, 7:00 AM CST to July 5, 7:00 PM CST
Where
Adams forecast zone
Reported by
NEWSPAPER
Coordinates
43.970, -89.771 (the zone’s center; the record gives no point)

Heat, Buffalo

When
July 4, 7:00 AM CST to July 5, 7:00 PM CST
Where
Buffalo forecast zone
Reported by
NEWSPAPER
Coordinates
44.380, -91.754 (the zone’s center; the record gives no point)

Heat, Clark

When
July 4, 7:00 AM CST to July 5, 7:00 PM CST
Where
Clark forecast zone
Reported by
NEWSPAPER
Coordinates
44.735, -90.612 (the zone’s center; the record gives no point)

Heat, Crawford

When
July 4, 7:00 AM CST to July 5, 7:00 PM CST
Where
Crawford forecast zone
Reported by
NEWSPAPER
Coordinates
43.240, -90.931 (the zone’s center; the record gives no point)

Heat, Grant

When
July 4, 7:00 AM CST to July 5, 7:00 PM CST
Where
Grant forecast zone
Reported by
NEWSPAPER
Coordinates
42.868, -90.706 (the zone’s center; the record gives no point)

Heat, Jackson

When
July 4, 7:00 AM CST to July 5, 7:00 PM CST
Where
Jackson forecast zone
Reported by
NEWSPAPER
Coordinates
44.319, -90.805 (the zone’s center; the record gives no point)

Heat, Juneau

When
July 4, 7:00 AM CST to July 5, 7:00 PM CST
Where
Juneau forecast zone
Reported by
NEWSPAPER
Coordinates
43.924, -90.114 (the zone’s center; the record gives no point)

Heat, La Crosse

When
July 4, 7:00 AM CST to July 5, 7:00 PM CST
Where
La Crosse forecast zone
Reported by
NEWSPAPER
Coordinates
43.907, -91.115 (the zone’s center; the record gives no point)

Heat, Monroe

When
July 4, 7:00 AM CST to July 5, 7:00 PM CST
Where
Monroe forecast zone
Reported by
NEWSPAPER
Coordinates
43.946, -90.618 (the zone’s center; the record gives no point)

Heat, Richland

When
July 4, 7:00 AM CST to July 5, 7:00 PM CST
Where
Richland forecast zone
Reported by
NEWSPAPER
Coordinates
43.376, -90.429 (the zone’s center; the record gives no point)

Heat, Taylor

When
July 4, 7:00 AM CST to July 5, 7:00 PM CST
Where
Taylor forecast zone
Reported by
NEWSPAPER
Coordinates
45.212, -90.501 (the zone’s center; the record gives no point)

Heat, Trempealeau

When
July 4, 7:00 AM CST to July 5, 7:00 PM CST
Where
Trempealeau forecast zone
Reported by
NEWSPAPER
Coordinates
44.304, -91.358 (the zone’s center; the record gives no point)

Heat, Vernon

When
July 4, 7:00 AM CST to July 5, 7:00 PM CST
Where
Vernon forecast zone
Reported by
NEWSPAPER
Coordinates
43.594, -90.834 (the zone’s center; the record gives no point)

What these are

Heat
Heat below excessive heat criteria that still caused deaths, injuries or significant impacts.

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

The same day elsewhere

More

Every storm in Wisconsin in 1999Every state in 1999This day in weather historyWarnings in Wisconsin, July 1999

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 2026-09-30. Each event’s entry at NCEI: 5707462, 5707463, 5707464, 5707465, 5707466, 5707467, 5707468, 5707469, 5707470, 5707471, 5707472, 5707473, 5707474.