Red Flag Warning for Middle Snake River Valley/Twin Falls BLM north of the Snake River
Impacts: Gusty winds and low humidity contributes to rapid fire spread and high intensity should a wildfire get established. Extreme fire behavior can also result.
Official alert brief
...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 425...
AFFECTED AREA
Fire Weather Zone 425 Middle Snake River Valley/Twin Falls BLM north of the Snake River.
WINDS
West 15 to 20 mph with gusts up to 35 mph.
RELATIVE HUMIDITY
As low as 9 percent.
IMPACTS
Gusty winds and low humidity contributes to rapid fire spread and high intensity should a wildfire get established. Extreme fire behavior can also result.
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.