Lower Snake River Plain Severe Watches & Warnings NOAA Weather Radio

Watches & Warnings

Fire Weather Warning
Issued: 2:35 AM MDT Aug. 18, 2019 – National Weather Service

... Red flag warning remains in effect from noon today to 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. Mainly over the Arco desert and the
western side of fire weather zone 410.

* Winds... southwest 15 to 25 mph with gusts up to 35 mph.

* Relative humidity... as low as 11 percent.

* Impacts... once a fire starts, fast fire spread rates and high
intensity fires are likely to result.

* 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.

Precautionary/preparedness actions...

A red flag warning means that critical fire weather conditions
are either occurring now, or will shortly based on 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.



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