Active Weather Alerts
Red Flag Warning
Issued: 8:04 PM Jul. 14, 2025 – National Weather Service
...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONE 410... * AFFECTED AREA...Fire Weather Zone 410 Upper Snake River Valley/Idaho Falls BLM. * TIMING...Winds will remain gusty into early evening. Daytime humidities will drop below 15 percent during this time. Thunderstorm development mid to late afternoon will produce gusts over 35 mph. * WINDS...West 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...12 TO 15 percent. * THUNDERSTORMS...Isolated dry thunderstorms across the north half of zone 410 will produce wind gusts in excess of 35 mph. * IMPACTS...The combination of gusty winds and low humidity with critically dry fuels may result in extreme fire behavior. Erratic wind gusts over 35 mph are expected near thunderstorms. Lightning may generate new fire starts. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. &&
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