Ohio, 1999

Tornadoes and Flash Flood in Ohio, July 1, 1999

July 1, 1999 · NWS ILN · 3 events in 3 counties and zones

2 tornado, 1 flash flood, as filed by the National Weather Service.

Where it happened

Every event with a place to put it; 1 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

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The toll

Deaths
0
Injuries
0
Property damage
$30,000
Crop damage
$5,000
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.

The radar

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

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Event by event

2 tornado, 1 flash flood. Local standard time, as filed.

Tornado, Auglaize

When
July 1, 11:45 AM EST to 11:50 AM EST
Where
Auglaize County, St Marys
Rating
F0
Path length
0.1 mi
Path width
30 yd
Property damage
$10,000
Crop damage
$5,000
Reported by
LAW ENFORCEMENT
Coordinates
40.530, -84.380

A brief tornado touched down overturning a semi truck on State Route 33. Trees were knocked down and a path of damage was noted in a corn field.

Tornado, Preble

When
July 1, 4:55 PM EST to 5:00 PM EST
Where
Preble County, 3 mi NW of Sugar Vly
Measured
50
Rating
F0
Path length
0.1 mi
Path width
100 yd
Property damage
$20,000
Reported by
LAW ENFORCEMENT
Coordinates
39.720, -84.750

A tornado touched down briefly uprooting numerous trees, knocking down power lines, and tearing a few roofs from a few barns.

Flash Flood, Union

When
July 1, 9:30 PM EST to 10:30 PM EST
Where
Union County, Marysville
Reported by
LAW ENFORCEMENT
Coordinates
40.299, -83.372 (the zone’s center; the record gives no point)

Heavy rain caused roads to be closed due to flood waters.

What these are

Tornado
A violently rotating column of air in contact with the ground and extending from a thunderstorm, filed with its path, width and Fujita or Enhanced Fujita rating from the damage survey.
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

More

Every storm in Ohio in 1999Every state in 1999This day in weather historyThe tornado archive for Ohio, 1999Warnings in Ohio, July 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: 5707171, 5707169, 5707170.