Flood, Alexander
- When
- April 4, 4:00 AM CST to April 30, 11:59 PM CST
- Where
- Alexander forecast zone
- Coordinates
- 37.192, -89.338 (the zone’s center; the record gives no point)
Flooding in Illinois, April 4 to 30, 1998
3 feet at Thebes on the 20th. Flood stage there is 33 feet.
Where it happened
Every event with a place to put it; 3 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
- 3
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 PAH wrote it up.
The Mississippi River crested at 38.3 feet at Thebes on the 20th. Flood stage there is 33 feet. Moderate flooding of lowland agricultural areas occurred, and some roads were inundated. This forced some school busses to be rerouted around flooded areas.
The radar
The national radar mosaic for the moment the first event began.
Event by event
3 flood. Local standard time, as filed.
Flood, Jackson
- When
- April 4, 4:00 AM CST to April 30, 11:59 PM CST
- Where
- Jackson forecast zone
- Coordinates
- 37.785, -89.382 (the zone’s center; the record gives no point)
Flood, Union
- When
- April 4, 4:00 AM CST to April 30, 11:59 PM CST
- Where
- Union forecast zone
- Coordinates
- 37.471, -89.255 (the zone’s center; the record gives no point)
What these are
- Flood
- Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
More
Every storm in Illinois in 1998Every state in 1998This day in weather historyWarnings in Illinois, April 1998
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: 5643919, 5643920, 5643921.