Illinois, 1998

Flooding in Illinois, May 1 to 20, 1998

May 1 to 20, 1998 · NWS PAH · 6 events in 6 counties and zones

Moderate flooding of the lower Ohio River continued into mid May. The river crested 6 to 8 feet above flood stage at Shawneetown, Brookport, and Grand Chain.

Where it happened

Every event with a place to put it; 6 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
6

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.

Moderate flooding of the lower Ohio River continued into mid May. The river crested 6 to 8 feet above flood stage at Shawneetown, Brookport, and Grand Chain. The crest at Cairo was 10 feet over the 40-foot flood stage due partly to backwater from the swollen Mississippi River. The dates of the crest were on the 5th or 6th at Brookport, Grand Chain, and Cairo. The crest date upstream at Shawneetown was on the 12th. Flooding of low-lying agricultural areas, riverside parks, and river access roads was significant.

The radar

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

Open the radar archive at this moment

Event by event

6 flood. Local standard time, as filed.

Flood, Alexander

When
May 1, 12:01 AM CST to May 20, 4:00 PM CST
Where
Alexander forecast zone
Coordinates
37.192, -89.338 (the zone’s center; the record gives no point)

Flood, Gallatin

When
May 1, 12:01 AM CST to May 20, 4:00 PM CST
Where
Gallatin forecast zone
Coordinates
37.763, -88.230 (the zone’s center; the record gives no point)

Flood, Hardin

When
May 1, 12:01 AM CST to May 20, 4:00 PM CST
Where
Hardin forecast zone
Coordinates
37.518, -88.267 (the zone’s center; the record gives no point)

Flood, Massac

When
May 1, 12:01 AM CST to May 20, 4:00 PM CST
Where
Massac forecast zone
Coordinates
37.219, -88.708 (the zone’s center; the record gives no point)

Flood, Pope

When
May 1, 12:01 AM CST to May 20, 4:00 PM CST
Where
Pope forecast zone
Coordinates
37.413, -88.562 (the zone’s center; the record gives no point)

Flood, Pulaski

When
May 1, 12:01 AM CST to May 20, 4:00 PM CST
Where
Pulaski forecast zone
Coordinates
37.223, -89.127 (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, May 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: 5644510, 5644511, 5644512, 5644513, 5644514, 5644515.