217
FNUS75 KBOI 092228
FWSBOI
SPOT FORECAST FOR ALDER RIDGE RX...USFS
NATIONAL WEATHER SERVICE BOISE ID
428 PM MDT THU APR 9 2026
FORECAST IS BASED ON IGNITION TIME OF 1700 MDT ON APRIL 09.
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.
..SHOWERS AND A CHANCE OF THUNDERSTORMS FRIDAY AND SATURDAY
..COOLER AND WET SUNDAY AND MONDAY
DISCUSSION
A LOW PRESSURE SYSTEM MOVING INTO THE PACIFIC NORTHWEST WILL
BRING A CHANCE OF SHOWERS AND THUNDERSTORMS TO THE BURN SITE
FRIDAY AND SATURDAY. THE THUNDERSTORM THREAT WILL DEVELOP
LATER FRIDAY AFTERNOON, LIKELY AFTER 4 PM LOCAL. A CHANCE
OF THUNDERSTORMS WILL CONTINUE THROUGH FRIDAY NIGHT AND
SATURDAY. GUSTY OUTFLOW WINDS TO 40 MPH ARE POSSIBLE FROM
THUNDERSTORMS THROUGH FRIDAY EVENING. BETWEEN FRIDAY NIGHT AND
SUNDAY, PERIODS OF RAIN WILL BRING ABOUT AROUND AN INCH
OF PRECIPITATION. ADDITIONAL RAINFALL IS LIKELY ON MONDAY.
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....65 TO 70.
MIN HUMIDITY........23 TO 28 PERCENT.
CWR.................0 PERCENT.
WIND - 20 FOOT......SOUTHWEST AROUND 3 MPH.
MIXING HEIGHT.......7500 FT AGL.
TRANSPORT WINDS.....WEST AROUND 5 MPH.
VENTILATION INDEX...375 FAIR.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY.
MIN TEMPERATURE.....39 TO 44.
MAX HUMIDITY........72 TO 77 PERCENT.
CWR.................0 PERCENT.
WIND - 20 FOOT......SOUTHWEST AROUND 3 MPH IN THE EVENING BECOMING
NORTH AROUND 3 MPH OVERNIGHT.
MIXING HEIGHT.......100 FT AGL.
TRANSPORT WINDS.....EAST AROUND 5 MPH.
VENTILATION INDEX...5 POOR.
FRIDAY
SKY/WEATHER.........MOSTLY CLOUDY WITH A 20% CHANCE OF RAIN SHOWERS
IN THE MORNING. SHOWERS AND A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. CHANCE OF
SHOWERS 60 PERCENT WITH A 20 PERCENT CHANCE OF
THUNDERSTORMS.
MAX TEMPERATURE.....65 TO 70.
MIN HUMIDITY........28 TO 33 PERCENT.
CWR.................30 PERCENT.
WIND - 20 FOOT......NORTH AROUND 3 MPH IN THE MORNING SHIFTING TO
THE SOUTH 3 TO 5 MPH IN THE AFTERNOON.
THUNDERSTORMS COULD PRODUCE GUSTY AND ERRATIC
WINDS TO 40 MPH IN THE LATE AFTERNOON AND EVENING.
MIXING HEIGHT.......7500 FT AGL.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH.
VENTILATION INDEX...750 EXCELLENT.
FORECASTER...GROENERT
REQUESTED BY...CHRIS HIGHTOWER
TYPE OF REQUEST...PRESCRIBED
.TAG 2609642.1/BOI
.DELDT 04/09/26
.FORMATTERVERSION 2.0.0
.EMAIL RALPH.LAMB@USDA.GOV,CHRISTOPHER.HIGHTOWER@USDA.GOV,EDUARD.HUNT@USDA.GOV,ALLISON.LUND@USDA.GOV
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