092 

FNUS75 KBOI 301538

FWSBOI



Spot Forecast for Tumbleweed Rx...USFWS

National Weather Service Boise ID

838 AM MST Tue Dec 30 2025



Forecast is based on ignition time of 1000 MST on December 30. 

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.



...DRY WITH BREEZY EASTERLY WINDS THROUGH WEDNESDAY...



.DISCUSSION...

High pressure will keep dry conditions over the region through 

Wednesday. Easterly winds aloft will mix to the surface each

morning, bringing breezy conditions through late afternoon. A

series of storm systems will impact southwest Idaho starting 

Thursday and continuing through the weekend. The burn site will

see periods of light precipitation with a probability of wetting

rain less than 20 percent. Gusty daytime winds will continue 

through Saturday. 



.TODAY...



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

Max temperature.....41 to 46. 

Min humidity........42 to 47 percent. 

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

Wind - 20 foot......Southeast 3 to 5 mph, becoming southeast 

                    9 to 12 mph with gusts up to 20 mph between

                    10 AM and 5 PM. 

Mixing height.......1500 ft AGL. 

Transport winds.....Southeast around 15 mph. 

Ventilation Index...225 fair. 



.TONIGHT...



Sky/weather.........Mostly clear in the evening then becoming 

                    mostly cloudy overnight. 

Min temperature.....18 to 23. 

Max humidity........83 to 88 percent. 

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

Wind - 20 foot......East 3 to 5 mph. 

Mixing height.......300 ft AGL. 

Transport winds.....Southeast around 15 mph. 

Ventilation Index...45 poor. 



.WEDNESDAY...



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

Max temperature.....44 to 49. 

Min humidity........41 to 46 percent. 

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

Wind - 20 foot......Southeast 3 to 5 mph, becoming southeast 

                    8 to 12 mph with gusts to around 18 mph 

                    after 10 AM. 

Mixing height.......1000 ft AGL. 

Transport winds.....Southeast around 15 mph. 

Ventilation Index...150 poor. 



$$

Forecaster...Groenert

Requested by...Bryson Gundlach

Type of request...PRESCRIBED

.TAG 2528146.0/BOI

.DELDT 12/30/25

.FormatterVersion 2.0.0

.EMAIL bryson_gundlach@fws.gov