Weather Alerts for Sawtooth/Stanley BasinIssued by the National Weather Service |
Special Weather Statement
 RED FLAG WARNING |
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| SAWTOOTH/STANLEY BASIN | ||
Areas Affected: Upper Snake River Valley/Idaho Falls BLM - Centennial Mountains and Snake River Range/Targhee NF - Caribou Range/Caribou NF - Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls BLM south of the Snake River |
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| Effective: Tue, 7/15 1:06pm | Updated: Tue, 7/15 7:19pm | Urgency: Expected |
| Expires: Tue, 7/15 9:00pm | 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 413 Caribou Range/Caribou NF and Fire Weather Zone 427 Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls BLM south of the Snake River. * TIMING...Scattered thunderstorms are expected to develop during the afternoon and evening hours, supporting the potential for gusty outflow winds and frequent lightning. * WINDS...A dry low level environment will promote the potential for storms to produce gusty outflow wind gusts in excess of 40- 50 mph, locally higher up to around 60 mph. * RELATIVE HUMIDITY...As low as 15 to 25 percent. * THUNDERSTORMS...25 to 45 percent coverage expected. * IMPACTS...Critical fire weather conditions are expected today. Lightning may generate new fire starts. Any new fire starts or existing fires may spread rapidly. 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. |
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 SPECIAL WEATHER STATEMENT |
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| SAWTOOTH/STANLEY BASIN | ||
Areas Affected: Arco/Mud Lake Desert - Upper Snake River Plain - Lower Snake River Plain - Eastern Magic Valley - Marsh and Arbon Highlands - Blackfoot Mountains - Caribou Range - Big Hole Mountains |
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| Effective: Tue, 7/15 6:59pm | Updated: Tue, 7/15 7:19pm | Urgency: Expected |
| Expires: Tue, 7/15 7:30pm | Severity: Moderate | Certainty: Observed |
Details:
At 656 PM MDT, Doppler radar was tracking gusty outflow winds along a line extending from 8 miles west of Taber to 6 miles southeast of Bone. Movement was northeast at 50 mph. HAZARD...Wind gusts of 50 to 55 mph. Blowing dust reducing visibility to below 2 miles. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Idaho Falls, Rigby, Ririe Reservoir, Lorenzo, Goshen, Ammon, Shelley, Iona, Ucon, Menan, Ririe, Roberts, Firth, Lewisville, Atomic City, Archer, Rose, Southeast Inl, Taber, and Bone. Information: If outdoors, consider seeking shelter inside a building. |
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