Flash Flood, Logan
- When
- August 12, 11:00 PM CST to August 13, 1:30 AM CST
- Where
- Logan County, Mt Pulaski
- Reported by
- EMERGENCY MANAGER
- Coordinates
- 40.125, -89.367 (the zone’s center; the record gives no point)
Flash Flooding in Illinois, August 12 to 13, 1999
Strong thunderstorms producing heavy rainfall trained across southern Logan and northern Macon counties. Five inches of rainfall was reported by an NWS cooperative observer within only a couple of hours time.
Where it happened
Every event with a place to put it; 2 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
- 2
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 ILX wrote it up.
Strong thunderstorms producing heavy rainfall trained across southern Logan and northern Macon counties. Five inches of rainfall was reported by an NWS cooperative observer within only a couple of hours time. Numerous roads were closed by floodwaters in the area, though no structural damage was reported.
The radar
The national radar mosaic for the moment the first event began.
Event by event
2 flash flood. Local standard time, as filed.
Flash Flood, Macon
- When
- August 13, 1:00 AM CST to 2:30 AM CST
- Where
- Macon County, Maroa
- Reported by
- EMERGENCY MANAGER
- Coordinates
- 39.860, -88.962 (the zone’s center; the record gives no point)
What these are
- 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.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Hail and Damaging Winds in Illinois, August 12, 1999
- Lightning Strike in Florida, August 12, 1999
- Tornado and Flash Flood in Tennessee, August 12, 1999
- Damaging Wind in Missouri, August 12, 1999
- Hail and Damaging Winds in Georgia, August 12, 1999
- Damaging Winds and Lightning Strike in Oklahoma, August 12, 1999
- Tornado in Illinois, August 12, 1999
- Damaging Winds in Illinois, August 12, 1999
- Lightning Strike in South Dakota, August 12, 1999
- Damaging Wind in Florida, August 12, 1999
- Damaging Winds in Oklahoma, August 12, 1999
- Damaging Wind in Alabama, August 12, 1999
More
Every storm in Illinois in 1999Every state in 1999This day in weather historyWarnings in Illinois, August 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 2026-09-24. Each event’s entry at NCEI: 5713268, 5713269.