612
FNUS75 KBOI 221210
FWSBOI
SPOT FORECAST FOR COLD RX - SCIRIUS
..USFS
UPDATED
NATIONAL WEATHER SERVICE BOISE ID
610 AM MDT WED APR 22 2026
FORECAST IS BASED ON IGNITION TIME OF 0714 MDT ON APRIL 22.
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 AND SNOW TODAY
..LIGHTER SNOW SHOWERS THURSDAY AND FRIDAY
DISCUSSION
IT WILL BE MUCH COOLER TODAY BEHIND LAST NIGHTS COLD FRONT. SNOW
LEVELS WILL LOWER TO 5000-5500 FEET, ALLOWING RAIN TO MIX WITH OR
CHANGE TO SNOW THIS MORNING. HOWEVER, TEMPERATURES SLIGHTLY ABOVE
FREEZING SHOULD PREVENT MUCH SNOW ACCUMULATION. SHOWERS WILL
CONTINUE THROUGH THE EVENING BEFORE TAPERING OFF OVERNIGHT, WITH
0.75-1.5 INCH STORM TOTAL LIQUID EXPECTED. WINDS WILL BE BREEZY
THIS AFTERNOON, TAPERING OFF THIS EVENING. SNOW SHOWERS WILL
CONTINUE THURSDAY AND FRIDAY WITH LIGHT SNOW ACCUMULATIONS
POSSIBLE. EXPECT SLIGHT WARMING OVER THE WEEKEND WITH LOW CHANCES
OF PRECIPITATION.
REST OF TODAY
SKY/WEATHER.........MIXED RAIN AND SNOW SHOWERS. CHANCE OF
PRECIPITATION 100 PERCENT. SNOW ACCUMULATION LESS
THAN 1 INCH. SNOW LEVEL 5300 FEET.
MAX TEMPERATURE.....38 TO 43.
MIN HUMIDITY........80 TO 90 PERCENT.
CWR.................90 PERCENT.
WIND - 20 FOOT......SOUTHWEST 5 TO 9 MPH WITH GUSTS TO AROUND 18
MPH.
MIXING HEIGHT.......2500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH.
VENTILATION INDEX...500 GOOD.
TONIGHT
SKY/WEATHER.........A 90 PERCENT CHANCE OF RAIN AND SNOW SHOWERS IN
THE EVENING, DECREASING OVERNIGHT. PATCHY FOG
OVERNIGHT. CHANCE OF PRECIPITATION 90 PERCENT.
SNOW ACCUMULATION UP TO 1 INCH. SNOW LEVEL 5000
FEET.
MIN TEMPERATURE.....30 TO 35.
MAX HUMIDITY........95 TO 100 PERCENT.
CWR.................60 PERCENT.
WIND - 20 FOOT......SOUTHWEST 3 TO 6 MPH. GUSTS UP TO 14 MPH IN THE
EVENING.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....WEST AROUND 5 MPH.
VENTILATION INDEX...25 POOR.
THURSDAY
SKY/WEATHER.........PATCHY FOG IN THE MORNING. MOSTLY CLOUDY WITH
SNOW SHOWERS LIKELY. CHANCE OF PRECIPITATION
70 PERCENT. SNOW ACCUMULATION UP TO 1 INCH. SNOW
LEVEL 4000-4500 FEET.
MAX TEMPERATURE.....41 TO 46.
MIN HUMIDITY........48 TO 56 PERCENT.
CWR.................40 PERCENT.
WIND - 20 FOOT......WEST 2 TO 5 MPH IN THE MORNING, BECOMING NORTHWEST
4 TO 8 MPH WITH GUSTS UP TO 16 MPH IN THE
AFTERNOON.
MIXING HEIGHT.......5000 FT AGL.
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH.
VENTILATION INDEX...750 EXCELLENT.
FORECASTER...TANGEN
REQUESTED BY...JONATHAN MILLER
TYPE OF REQUEST...PRESCRIBED
.TAG 2610807.2/BOI
.DELDT 04/22/26
.FORMATTERVERSION 2.0.0
.EMAIL WILL.WOODS@USDA.GOV,JONATHAN.MILLER@USDA.GOV
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