Heat, Allamakee
- When
- July 4, 7:00 AM CST to July 5, 7:00 PM CST
- Where
- Allamakee forecast zone
- Reported by
- NEWSPAPER
- Coordinates
- 43.284, -91.378 (the zone’s center; the record gives no point)
Heat in Iowa, July 4 to 5, 1999
There were no deaths directly related to the excessive heat and humidity.
Where it happened
Every event with a place to put it; 8 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
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.
What happened
The episode as NWS ARX wrote it up.
High humidity combined with afternoon temperatures of 95 to 100 to produce heat indices of 105 to 115.There were no deaths directly related to the excessive heat and humidity.
The radar
The national radar mosaic for the moment the first event began.
Event by event
8 heat. Local standard time, as filed.
Heat, Chickasaw
- When
- July 4, 7:00 AM CST to July 5, 7:00 PM CST
- Where
- Chickasaw forecast zone
- Reported by
- NEWSPAPER
- Coordinates
- 43.060, -92.318 (the zone’s center; the record gives no point)
Heat, Clayton
- When
- July 4, 7:00 AM CST to July 5, 7:00 PM CST
- Where
- Clayton forecast zone
- Reported by
- NEWSPAPER
- Coordinates
- 42.845, -91.341 (the zone’s center; the record gives no point)
Heat, Fayette
- When
- July 4, 7:00 AM CST to July 5, 7:00 PM CST
- Where
- Fayette forecast zone
- Reported by
- NEWSPAPER
- Coordinates
- 42.863, -91.844 (the zone’s center; the record gives no point)
Heat, Floyd
- When
- July 4, 7:00 AM CST to July 5, 7:00 PM CST
- Where
- Floyd forecast zone
- Reported by
- NEWSPAPER
- Coordinates
- 43.060, -92.789 (the zone’s center; the record gives no point)
Heat, Howard
- When
- July 4, 7:00 AM CST to July 5, 7:00 PM CST
- Where
- Howard forecast zone
- Reported by
- NEWSPAPER
- Coordinates
- 43.357, -92.317 (the zone’s center; the record gives no point)
Heat, Mitchell
- When
- July 4, 7:00 AM CST to July 5, 7:00 PM CST
- Where
- Mitchell forecast zone
- Reported by
- NEWSPAPER
- Coordinates
- 43.356, -92.789 (the zone’s center; the record gives no point)
Heat, Winneshiek
- When
- July 4, 7:00 AM CST to July 5, 7:00 PM CST
- Where
- Winneshiek forecast zone
- Reported by
- NEWSPAPER
- Coordinates
- 43.291, -91.844 (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
- Heat in Pennsylvania, July 4 to 6, 1999
- Heat in New York, July 4 to 6, 1999
- Heat in Maryland, July 4 to 7, 1999
- Heat in New Jersey, July 4 to 6, 1999
- Heat in New Jersey, July 4 to 6, 1999
- Heat in District of Columbia, July 4 to 7, 1999
- Heat in Virginia, July 4 to 7, 1999
- Heat in Delaware, July 4 to 6, 1999
- Heat in Michigan, July 4 to 5, 1999
- Flood and Hail in North Dakota, July 4, 1999
- Flash Flooding and Hail in Michigan, July 4 to 31, 1999
- Rip Current in Alabama, July 4, 1999
More
Every storm in Iowa in 1999Every state in 1999This day in weather historyWarnings in Iowa, 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: 5707475, 5707476, 5707477, 5707478, 5707479, 5707480, 5707481, 5707482.