Heat, Midland
- When
- February 11, 12:00 PM EST to 8:00 PM EST
- Where
- Midland forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 43.647, -84.388 (the zone’s center; the record gives no point)
Heat in Michigan, February 11, 1999
High pressure was located over the southeast United States, while a potent low pressure system was located in the upper Mississippi Valley. In between, strong southwest winds brought unusually warm air into the Great Lakes.
Where it happened
Every event with a place to put it; 17 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
- 17
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 DTX wrote it up.
High pressure was located over the southeast United States, while a potent low pressure system was located in the upper Mississippi Valley. In between, strong southwest winds brought unusually warm air into the Great Lakes. This resulted in the warmest February day in southeast Michigan history.In Detroit, the temperature rose to 70 degrees. This broke the all-time February record in Detroit (old record was 68 degrees on Feb 26, 1944), and was the earliest 70-degree day in Detroit history by almost a full month.In Flint, the high for the day was 68 degrees. This was not only the warmest February day in Flint history, but it smashed the old record by 5 degrees (63 degrees on Feb 23, 1984). Even more remarkable was that the 68 degrees obliterated the old record for February 11th by an astonishing 26 degrees!
The radar
The national radar mosaic for the moment the first event began.
Event by event
17 heat. Local standard time, as filed.
Heat, Bay
- When
- February 11, 12:00 PM EST to 8:00 PM EST
- Where
- Bay forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 43.721, -83.942 (the zone’s center; the record gives no point)
Heat, Saginaw
- When
- February 11, 12:00 PM EST to 8:00 PM EST
- Where
- Saginaw forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 43.335, -84.053 (the zone’s center; the record gives no point)
Heat, Huron
- When
- February 11, 12:00 PM EST to 8:00 PM EST
- Where
- Huron forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 43.910, -82.855 (the zone’s center; the record gives no point)
Heat, Tuscola
- When
- February 11, 12:00 PM EST to 8:00 PM EST
- Where
- Tuscola forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 43.491, -83.440 (the zone’s center; the record gives no point)
Heat, Sanilac
- When
- February 11, 12:00 PM EST to 8:00 PM EST
- Where
- Sanilac forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 43.443, -82.646 (the zone’s center; the record gives no point)
Heat, Shiawassee
- When
- February 11, 12:00 PM EST to 8:00 PM EST
- Where
- Shiawassee forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 42.954, -84.147 (the zone’s center; the record gives no point)
Heat, Genesee
- When
- February 11, 12:00 PM EST to 8:00 PM EST
- Where
- Genesee forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 43.022, -83.707 (the zone’s center; the record gives no point)
Heat, Lapeer
- When
- February 11, 12:00 PM EST to 8:00 PM EST
- Where
- Lapeer forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 43.090, -83.222 (the zone’s center; the record gives no point)
Heat, St. Clair
- When
- February 11, 12:00 PM EST to 8:00 PM EST
- Where
- St. Clair forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 42.931, -82.664 (the zone’s center; the record gives no point)
Heat, Livingston
- When
- February 11, 12:00 PM EST to 8:00 PM EST
- Where
- Livingston forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 42.603, -83.911 (the zone’s center; the record gives no point)
Heat, Oakland
- When
- February 11, 12:00 PM EST to 8:00 PM EST
- Where
- Oakland forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 42.660, -83.386 (the zone’s center; the record gives no point)
Heat, Macomb
- When
- February 11, 12:00 PM EST to 8:00 PM EST
- Where
- Macomb forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 42.673, -82.910 (the zone’s center; the record gives no point)
Heat, Washtenaw
- When
- February 11, 12:00 PM EST to 8:00 PM EST
- Where
- Washtenaw forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 42.253, -83.839 (the zone’s center; the record gives no point)
Heat, Wayne
- When
- February 11, 12:00 PM EST to 8:00 PM EST
- Where
- Wayne forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 42.285, -83.261 (the zone’s center; the record gives no point)
Heat, Lenawee
- When
- February 11, 12:00 PM EST to 8:00 PM EST
- Where
- Lenawee forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 41.895, -84.066 (the zone’s center; the record gives no point)
Heat, Monroe
- When
- February 11, 12:00 PM EST to 8:00 PM EST
- Where
- Monroe forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 41.921, -83.494 (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
- Wildfire and Dust Storm in California, February 11 to 12, 1999
- Tornado in Illinois, February 11, 1999
- Hail and High Wind in Kansas, February 11, 1999
- Tornado in Missouri, February 11, 1999
- Ice Storm in Iowa, February 11, 1999
- Damaging Winds and High Wind in Illinois, February 11, 1999
- Flooding and Hail in Wisconsin, February 11, 1999
- Hail and Damaging Winds in Iowa, February 11, 1999
- Tornado in Illinois, February 11, 1999
- Damaging Winds in Illinois, February 11, 1999
- Tornado in Missouri, February 11, 1999
- Tornado in Illinois, February 11, 1999
More
Every storm in Michigan in 1999Every state in 1999This day in weather historyWarnings in Michigan, February 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 2026-10-01. Each event’s entry at NCEI: 5684687, 5684688, 5684689, 5684690, 5684691, 5684692, 5684693, 5684694, 5684695, 5684696, 5684697, 5684698, 5684699, 5684700, 5684701, 5684702, 5684703.