Report Criteria

Douglas, Coos and Curry Counties:

SPOTTER CRITERIA FOR DOUGLAS, COOS, AND CURRY COUNTIES

TORNADOES, FUNNEL CLOUDS, SEVERE THUNDERSTORMS, OR WATER SPOUTS

Tornadoes or funnel clouds are observed.
Hail observed ½ inch in diameter or larger.
Rainfall at a rate of ½ inch or more an hour.
Wind gusts of 45 miles an hour or more.

RAINFALL

One inch or more in 12 hours.
1 ½ inches or more in 24 hours.
Rain that freezes on contact with the ground or other surfaces.

SNOWFALL

Below 1500 ft. two or more inches of new snow.
Above 1500 ft. four or more inches of new snow.

WINDS (see Beaufort scale)

Coastal strip estimated winds of 45 mph or greater.
Interior areas estimated wind of 35 mph or greater.

SMALL STREAM FLOODING

Small streams are flooding or near flood and rising.
Water ponding in low areas or crossing roadways.

DENSE FOG

Visibility 100 yards or less and affecting major roadways.

EARTHQUAKES OR TREMORS

When felt.

Jackson and Josephine Counties:

SPOTTER CRITERIA FOR JACKSON AND JOSEPHINE COUNTIES

TORNADOES, FUNNEL CLOUDS, SEVERE THUNDERSTORMS, OR WATER SPOUTS

Tornadoes or funnel clouds are observed.
Hail observed ½ inch in diameter or larger.
Rainfall at a rate of ½ inch or more an hour.
Wind gusts of 45 miles an hour or more.

RAINFALL

One inch or more in 12 hours.
1½ inches or more in 24 hours.
Rain that freezes on contact with the ground or other surfaces.

SNOWFALL

Below 1500 ft. Two or more inches of new snow.
Between 1500 ft. and 3500 ft. Four or more inches of new snow.
Above 3500 ft. Six or more inches of new snow.

WINDS (see Beaufort scale)

Below 3500 ft. estimated winds of 35 mph or greater.
Above 3500 ft. estimated winds of 45 mph or greater.

SMALL STREAM FLOODING

Small streams that are flooding or near flood and rising.
Water ponding in low areas or crossing roadways.

DENSE FOG

Visibility 100 yards or less and affecting major roadways.

EARTHQUAKES OR TREMORS

When felt.

Klamath, Lake, Siskiyou and Modoc Counties

SPOTTER CRITERIA FOR KLAMATH, LAKE, SISKIYOU, AND MODOC COUNTIES

TORNADOES, FUNNEL CLOUDS, SEVERE THUNDERSTORMS, OR WATER SPOUTS

Tornadoes or funnel clouds are observed.
Hail observed ½ inch in diameter or larger.
Rainfall at a rate of ½ inch or more an hour.
Wind gusts of 45 miles an hour or more.

RAINFALL

One inch or more in 12 hours.
1½ inches or more in 24 hours.
Rain that freezes on contact with the ground or other surfaces.

SNOWFALL

Below 5000 ft. Four or more inches of new snow.
Above 5000 ft. Six or more inches of new snow.

WINDS (see Beaufort scale)

Below 5000 ft. estimated winds of 35 mph or greater.
Above 5000 ft. estimated winds of 45 mph or greater.

SMALL STREAM FLOODING

Small streams that are flooding or near flood and rising.
Water ponding in low areas or crossing roadways.

DENSE FOG

Visibility 100 yards or less and affecting major roadways.

EARTHQUAKES OR TREMORS

When felt.