Full Notification

* AFFECTED AREA...Fire Weather Zone 410 Upper Snake River Valley/Idaho Falls BLM, Fire Weather Zone 413 Caribou Range/Caribou NF, Fire Weather Zone 425 Middle Snake River Valley/Twin Falls BLM north of the Snake River and Fire Weather Zone 427 Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls BLM south of the Snake River.

* WINDS...West/southwest 10 to 25 mph with gusts of 25 to 40 mph.

* RELATIVE HUMIDITY...As low as 10 percent.

* THUNDERSTORMS...15 to 25 percent coverage in the mountains.

* OUTFLOW WINDS...A dry low level environment will promote stronger storms capable of producing wind gusts up to 50 mph.

* IMPACTS...Critical fire weather conditions are expected this afternoon and evening. Lightning may generate new fire starts. Any new fire starts or existing fires may spread rapidly.

* AFFECTED AREAS: UPPER SNAKE RIVER VALLEY/IDAHO FALLS BLM ... CARIBOU RANGE/CARIBOU NF ... MIDDLE SNAKE RIVER VALLEY/TWIN FALLS BLM NORTH OF THE SNAKE RIVER ... GOOSE CREEK AND RAFT RIVER VALLEY/SOUTHERN SAWTOOTH NF/TWIN FALLS BLM SOUTH OF THE SNAKE RIVER

Instructions:

A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly based on these criteria for Southeastern Idaho: - Relative humidity at or below 15 percent and wind gusts of at least 25 mph in the mountains, or 30 mph in the Snake Plain. - Thunderstorm coverage of 25 percent, without specific rainfall criteria. - Other high impact events deemed critical by the National Weather Service and area fire management agencies.