Flooding in Utah, September 5, 1998

Name: Flooding in Utah, September 5, 1998
Start: 1998-09-05T04:00
End: 1998-09-05T15:00
Location: Utah

September 5, 1998 · NWS SLC · 4 events in 4 counties and zones

Numerous thunderstorms with heavy monsoonal rains caused flooding across southern Utah on this date. 1-2" of rain was measured in these areas.

The toll

Deaths: 0
Injuries: 0
Property damage: $70,000
Crop damage: $12,000
Events: 4

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 SLC wrote it up.

Numerous thunderstorms with heavy monsoonal rains caused flooding across southern Utah on this date. 1-2" of rain was measured in these areas. Several roads and one bridge were washed out.

Event by event

4 flood. Local standard time, as filed.

Flood, Sc Washington

When: September 5, 4:00 AM MST to 3:00 PM MST
Where: Sc Washington forecast zone
Property damage: $20,000
Crop damage: $5,000
Reported by: LAW ENFORCEMENT

Flood, Kane T X Nw X E/Sc Garfield

When: September 5, 4:00 AM MST to 3:00 PM MST
Where: Kane T X Nw X E/Sc Garfield forecast zone
Property damage: $10,000
Crop damage: $2,000
Reported by: LAW ENFORCEMENT

Flood, Sw San Juan/X E Kane/Se Garfield

When: September 5, 4:00 AM MST to 3:00 PM MST
Where: Sw San Juan/X E Kane/Se Garfield forecast zone
Property damage: $25,000
Crop damage: $4,000
Reported by: LAW ENFORCEMENT

Flood, X Nw Kane/Xs Xe Iron/N W Washington/Nw Wc Garfield/Piute/W Wayne/Sevier T C/X E Millard/S Sanpete T Sc/X Se Juab/P X Nw Emery/X E Beaver

When: September 5, 4:00 AM MST to 3:00 PM MST
Where: X Nw Kane/Xs Xe Iron/N W Washington/Nw Wc Garfield/Piute/W Wayne/Sevier T C/X E Millard/S Sanpete T Sc/X Se Juab/P X Nw Emery/X E Beaver forecast zone
Property damage: $15,000
Crop damage: $500
Reported by: LAW ENFORCEMENT

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

Every storm in Utah in 1998 Every state in 1998 This day in weather history Warnings in Utah, September 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: 5663913, 5663914, 5663915, 5663916.