152
FNUS75 KBOI 301244
FWSBOI
SPOT FORECAST FOR POORMAN RX...BOISE NF
NATIONAL WEATHER SERVICE BOISE ID
644 AM MDT THU APR 30 2026
FORECAST IS BASED ON IGNITION TIME OF 0900 MDT ON APRIL 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 CONDITIONS WITH WARMING TEMPERATURES AND LIGHT WINDS THROUGH
THE WEEKEND...
DISCUSSION
HIGH PRESSURE WILL BRING DRY AND WARMER CONDITIONS TO THE REGION
THROUGH SUNDAY. LINGERING MOISTURE AND INSTABILITY WILL SUPPORT CUMULUS
BUILDUPS TODAY, BUT THE CHANCE FOR SHOWERS IS LESS THAN 10 PERCENT.
TEMPERATURES WILL WARM THROUGH THE WEEKEND WHILE AFTERNOON RELATIVE
HUMIDITY AND OVERNIGHT RECOVERY TREND LOWER. HIGH CLOUDS WILL INCREASE
ON SATURDAY AS MOISTURE MOVES IN ALOFT. SHOWERS WILL REMAIN SOUTH OF
THE BURN ON SATURDAY WITH A 10-15% CHANCE OF PRECIPITATION BY SUNDAY
EVENING.
TODAY
SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....63 TO 68.
MIN HUMIDITY........25 TO 30 PERCENT.
CWR.................0 PERCENT.
WIND - 20 FOOT......LESS THAN 3 MPH LATE IN THE MORNING BECOMING
WEST AROUND 6 MPH IN THE AFTERNOON.
MIXING HEIGHT.......8500 FT AGL.
TRANSPORT WINDS.....NORTH AROUND 10 MPH.
VENTILATION INDEX...850 EXCELLENT.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
MIN TEMPERATURE.....37 TO 42.
MAX HUMIDITY........60 TO 65 PERCENT MID-SLOPES AND RIDGELINES. 82
TO 88 PERCENT VALLEY FLOORS.
CWR.................0 PERCENT.
WIND - 20 FOOT......NORTHWEST 3 TO 6 MPH IN THE EVENING SHIFTING TO
THE EAST AROUND 3 MPH OVERNIGHT.
MIXING HEIGHT.......200 FT AGL.
TRANSPORT WINDS.....EAST AROUND 5 MPH.
VENTILATION INDEX...10 POOR.
FRIDAY
SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....67 TO 73.
MIN HUMIDITY........18 TO 23 PERCENT.
CWR.................0 PERCENT.
WIND - 20 FOOT......EAST UP TO 3 MPH IN THE MORNING SHIFTING TO THE
WEST AROUND 5 MPH IN THE AFTERNOON.
MIXING HEIGHT.......7500 FT AGL.
TRANSPORT WINDS.....SOUTH AROUND 5 MPH.
VENTILATION INDEX...375 FAIR.
FORECASTER...GROENERT
REQUESTED BY...HIGHTOWER
TYPE OF REQUEST...PRESCRIBED
.TAG 2611661.7/BOI
.DELDT 04/30/26
.FORMATTERVERSION 2.0.0
.EMAIL SAMUEL.LEWIS1@USDA.GOV,CHRISTOPHER.HIGHTOWER@USDA.GOV,JACK.SIPPLE@USDA.GOV,CHRISTOPHER.KNIGHT@USDA.GOV,DAVID.ROGAN@USDA.GOV,DUSTIN.DOANE@USDA.GOV
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page