Weather Alerts for Big Hole MountainsIssued by the National Weather Service |
 RED FLAG WARNING |
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| BIG HOLE MOUNTAINS | ||
Areas Affected: Upper Snake River Valley/Idaho Falls BLM - Centennial Mountains and Snake River Range/Targhee 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 - East Salmon River Mountains/Salmon NF - Lemhi and Lost River Range/Challis NF |
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| Effective: Sat, 7/27 2:56am | Updated: Sat, 7/27 3:25am | Urgency: Expected |
| Expires: Sat, 7/27 3:00pm | Severity: Severe | Certainty: Likely |
Details:
* AFFECTED AREA...Fire Weather Zone 410 Upper Snake River Valley/Idaho Falls BLM, Fire Weather Zone 411 Centennial Mountains and Snake River Range/Targhee NF, Fire Weather Zone 425 Middle Snake River Valley/Twin Falls BLM north of the Snake River, Fire Weather Zone 427 Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls BLM south of the Snake River, Fire Weather Zone 475 East Salmon River Mountains/Salmon NF and Fire Weather Zone 476 Lemhi and Lost River Range/Challis NF. * IMPACTS...Scattered thunderstorms will develop during the afternoon and evening on Saturday. Besides gusty and erratic winds near thunderstorms, frequent lightning can increase wildfire starts. * THUNDERSTORMS...25 to 50 percent coverage expected. * OUTFLOW WINDS...40 to 60 MPH possible. Information: 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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| RED FLAG WARNING |
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| BIG HOLE MOUNTAINS | ||
Areas Affected: Caribou Range/Caribou NF |
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| Effective: Sat, 7/27 2:56am | Updated: Sat, 7/27 3:25am | Urgency: Expected |
| Expires: Sat, 7/27 3:00pm | Severity: Severe | Certainty: Likely |
Details:
* AFFECTED AREA...Fire Weather Zone 413 Caribou Range/Caribou NF. * IMPACTS...Scattered thunderstorms will develop during the morning and continue through the evening. Besides gusty and erratic winds near thunderstorms, frequent lightning can increase wildfire starts. * THUNDERSTORMS...25 to 50 percent coverage expected. * OUTFLOW WINDS...40 to 60 MPH possible. Information: A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly based on these criteria for Southeastern Idaho: - Thunderstorm coverage of 25 percent, without specific rainfall criteria. |
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