Weather Alerts for Upper Treasure ValleyIssued by the National Weather Service |
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| UPPER TREASURE VALLEY | ||
Areas Affected: Boise Mountains |
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| Effective: Fri, 7/17 1:18pm | Updated: Fri, 7/17 2:49pm | Urgency: Future |
| Expires: Fri, 7/17 9:00pm | Severity: Severe | Certainty: Possible |
Details:
* WHAT...Flash flooding and debris flows caused by excessive rainfall continue to be possible over the Wapiti Burn Area. * WHERE...In an around the Wapiti Burn Scar in the Boise Mountains, including Highway 21 between Grandjean and Banner Summit. * WHEN...Until 9 PM MDT this evening. * IMPACTS...Heavy rainfall over the Wapiti Burn Area is possible during the period of the watch. Residents near the Wapiti Burn Area should prepare for potential flooding impacts. * ADDITIONAL DETAILS... - Heavy rainfall is possible over the Wapiti Burn Area, which may lead to flash flooding and debris flows. - https://www.weather.gov/safety/flood Information: You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. |
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| UPPER TREASURE VALLEY | ||
Areas Affected: Sawtooth Range/Northern Sawtooth NF - Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls BLM south of the Snake River |
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| Effective: Fri, 7/17 1:18am | Updated: Fri, 7/17 2:49pm | Urgency: Expected |
| Expires: Fri, 7/17 9:00pm | Severity: Severe | Certainty: Likely |
Details:
...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING FOR SCATTERED THUNDERSTORMS FOR FIRE WEATHER ZONES 411, 413, 422, 427, 475 AND 476... * AFFECTED AREA...Fire Weather Zone 422 Sawtooth Range/Northern Sawtooth NF and Fire Weather Zone 427 Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls BLM south of the Snake River. * IMPACTS...Scattered thunderstorms can produce frequent lightning that may in turn produce wildfire starts in receptive fuels. * THUNDERSTORMS...A mix of wet and dry storms, with wetting rains possible with stronger storms. * OUTFLOW WINDS...Gusts over 35 mph with peak gusts nearing 55-60 mph. 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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