FNUS75 KBOI 251100

FWSBOI



Spot Forecast for CZ Piles...USFS

National Weather Service Boise ID

500 AM MDT Sat Oct 25 2025



Forecast is based on ignition time of 0721 MDT on October 25. 

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.



...RAIN TODAY. HEAVY SHOWERS AND A THUNDERSTORM POSSIBLE THIS

AFTERNOON AND EVENING.  COLDER SUNDAY WITH LIGHT RAIN AND SNOW

SHOWERS SUNDAY AFTERNOON/EVENING. VALLEY FOG MONDAY MORNING...



.DISCUSSION...

Two cold fronts:  First one this morning with widespread moderate

to heavy rain through 2 PM MDT, then partial clearing. Second stronger

cold front 6 to 8 PM MDT this evening with brief heavy rain, gusty

south or southwest wind, and a 30 percent chance of a thunderstorm.

Partial clearing overnight.  Colder Sunday with rain and snow showers

in the afternoon and evening.  Valley fog Monday morning, then mostly

sunny and cold.



.REST OF TODAY...



Sky/weather.........Moderate to locally heavy rain through about 2 PM

                    MDT.  Rainfall near .60 inch. Chance of precipitation

                    100 percent. 

Max temperature.....45 to 50. 

Min humidity........85 to 90 percent. 

CWR.................100 percent. 

Wind - 20 foot......South 6 to 9 mph with gusts to around 22 mph. 

Mixing height.......3000 ft AGL. 

Transport winds.....Southwest around 30 mph. 

Ventilation Index...900 excellent. 



.TONIGHT...



Sky/weather.........A 90 percent chance of rain showers and 30 percent

                    chance of a thunderstorm during passage of a cold

                    between 6 PM and 8 PM MDT.  A 50 percent chance of

                    rain and snow showers overnight. Rainfall near .20

                    inch.  No snow accumulation expected.

Min temperature.....29 to 34. 

Max humidity........95 to 100 percent. 

CWR.................50 percent. 

Wind - 20 foot......South around 6 mph. Gusts up to 18 mph in the 

                    evening. Gusty and erratic winds expected near 

                    thunderstorms in the evening. 

Mixing height.......800 ft AGL. 

Transport winds.....South around 10 mph. 

Ventilation Index...80 poor. 



.SUNDAY...



Sky/weather.........A chance of rain and snow showers in the 

                    morning, then rain and snow showers in the 

                    afternoon. Chance of precipitation 80 percent. 

                    Little or no snow accumulation. 

Max temperature.....40 to 45. 

Min humidity........64 to 69 percent. 

CWR.................30 percent. 

Wind - 20 foot......South around 6 mph. Gusts up to 14 mph in the 

                    afternoon. 

Mixing height.......4500 ft AGL. 

Transport winds.....South around 15 mph. 

Ventilation Index...675 good. 



$$

Forecaster...Colin

Requested by...Jonathan Miller

Type of request...PRESCRIBED

.TAG 2524156.3/BOI

.DELDT 10/25/25

.FormatterVersion 2.0.0

.EMAIL jonathan.miller@usda.gov