FNUS75 KBOI 071047

FWSBOI



Spot Forecast for Tumbleweed Rx...USWFS

National Weather Service Boise ID

447 AM MDT Thu May 7 2026



Forecast is based on ignition time of 0651 MDT on May 07. 

If conditions become unrepresentative...contact the National Weather

Service.



Please contact our office at (208)334-9060, if you have questions

or concerns with this forecast.



...WARM AND DRY...

...BREEZY DURING THE AFTERNOONS THROUGH SATURDAY...



.DISCUSSION...

Northwest flow continues aloft today as a ridge remains just 

offshore. Conditions will be trending warmer drier each 

afternoon through Friday with breezy northwest winds during 

the afternoons, and southwest drainage winds at night. A cold 

front moves through the area on Saturday with breezy conditions

and slightly cooler temperatures. Much warmer conditions 

expected next week as a ridge strengthens over the area.



.REST OF TODAY...



Sky/weather.........Partly sunny. 

Max temperature.....75 to 80. 

Min humidity........20 to 25 percent. 

CWR.................0 percent. 

Wind - 20 foot......West-northwest around 15 mph with gusts to around 

                    24 mph. 

Mixing height.......7500 ft AGL. 

Transport winds.....West around 25 mph. 

Ventilation Index...1875 excellent. 



.TONIGHT...



Sky/weather.........Mostly clear. 

Min temperature.....46 to 51. 

Max humidity........44 to 49 percent. 

CWR.................0 percent. 

Wind - 20 foot......West-northwest 8 to 14 mph with gusts up to 24 mph in the 

                    evening. Becoming southwest 6 to 10 mph after midnight.

Mixing height.......200 ft AGL. 

Transport winds.....West around 15 mph. 

Ventilation Index...30 poor. 



.FRIDAY...



Sky/weather.........Sunny. 

Max temperature.....77 to 82. 

Min humidity........16 to 21 percent. 

CWR.................0 percent. 

Wind - 20 foot......West-northwest 10 to 14 mph. Gusts up to 18 mph in the 

                    morning increasing to 24 mph in the afternoon. 

Mixing height.......8500 ft AGL. 

Transport winds.....West around 20 mph. 

Ventilation Index...1700 excellent. 



$$

Forecaster...Anderson

Requested by...Matt Goodrich

Type of request...PRESCRIBED

.TAG 2612766.1/BOI

.DELDT 05/07/26

.FormatterVersion 2.0.0

.EMAIL mgoodrich@blm.gov