431
FNUS75 KBOI 311609
FWSBOI
SPOT FORECAST FOR TUMBLEWEED RX...USFWS
NATIONAL WEATHER SERVICE BOISE ID
909 AM MST WED DEC 31 2025
FORECAST IS BASED ON IGNITION TIME OF 1000 MST ON DECEMBER 31.
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 TODAY
..INCREASING RAIN CHANCES ON NEW YEARS DAY
DISCUSSION
DRY WEATHER WITH NEAR SEASONAL NORMAL TEMPERATURES WILL PERSIST TODAY.
A FEW GUSTS OF 15-20 MPH OUT OF THE SOUTHEAST ARE POSSIBLE THIS AFTERNOON.
LATER TONIGHT, CLOUD COVER INCREASES AHEAD OF RICH MOISTURE MOVING IN
FROM THE SOUTH. PRECIPITATION CHANCES INCREASE AFTER 7 AM ON THURSDAY
MORNING AND PEAK MID-DAY. HUMIDITY VALUES WILL ALSO INCREASE SIGNIFICANTLY.
WIND SPEEDS WILL BE SIMILAR ON THURSDAY, WITH GUSTS OF 15-20 MPH POSSIBLE,
FAVORING AN EASTERLY DIRECTION.
REST OF TODAY
SKY/WEATHER.........PARTLY SUNNY.
MAX TEMPERATURE.....44 TO 49.
MIN HUMIDITY........42 TO 47 PERCENT.
CWR.................0 PERCENT.
WIND - 20 FOOT......SOUTHEAST 4 TO 10 MPH WITH GUSTS TO AROUND 18
MPH.
MIXING HEIGHT.......1000 FT AGL.
TRANSPORT WINDS.....SOUTHEAST AROUND 15 MPH.
VENTILATION INDEX...150 POOR.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY.
MIN TEMPERATURE.....26 TO 31.
MAX HUMIDITY........85 TO 90 PERCENT.
CWR.................0 PERCENT.
WIND - 20 FOOT......EAST 3 TO 6 MPH.
MIXING HEIGHT.......300 FT AGL.
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH.
VENTILATION INDEX...30 POOR.
NEW YEARS DAY
SKY/WEATHER.........CLOUDY. A CHANCE OF RAIN IN THE MORNING, THEN
RAIN LIKELY IN THE AFTERNOON. CHANCE OF RAIN 60
PERCENT.
MAX TEMPERATURE.....44 TO 49.
MIN HUMIDITY........67 TO 72 PERCENT.
CWR.................30 PERCENT.
WIND - 20 FOOT......EAST 5 TO 11 MPH WITH GUSTS TO AROUND 18 MPH.
MIXING HEIGHT.......900 FT AGL.
TRANSPORT WINDS.....EAST AROUND 15 MPH.
VENTILATION INDEX...135 POOR.
FORECASTER...ROGERS
REQUESTED BY...BRYSON GUNDLACH
TYPE OF REQUEST...PRESCRIBED
.TAG 2528174.0/BOI
.DELDT 12/31/25
.FORMATTERVERSION 2.0.0
.EMAIL BRYSON_GUNDLACH@FWS.GOV
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