991
FNUS75 KBOI 141333
FWSBOI
SPOT FORECAST FOR JOHNSON FORK PILES...USFS
NATIONAL WEATHER SERVICE BOISE ID
633 AM MST TUE JAN 14 2025
FORECAST IS BASED ON IGNITION TIME OF 0900 MST ON JANUARY 14.
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.
..STAGNANT AIR THIS WEEK UNDER A DEVELOPING INVERSION
..COLD FRONT ON FRIDAY BRINGS COLDER AIR AND MIXES OUT INVERSION
DISCUSSION
HIGH PRESSURE ALOFT BRINGING GENERALLY COOL TEMPS AND
CALM WINDS. INVERSION DEVELOPING UNDER THE HIGH PRESSURE WILL
KEEP MIXING HEIGHTS BELOW 2K FT, AND CALM TRANSPORT WINDS IS
LIKELY TO LEAD TO STAGNANT AIR. FRIDAY A COLD FRONT PASSES THROUGH
THE AIR. PRECIPITATION ASSOCIATED WITH THE FRONT WILL STAY WELL
NORTH AND EAST OF THE SPOT LOCATION. HOWEVER, THE FRONTAL WINDS
SHOULD ENHANCE MIXING AND WEAKEN OR DISSIPATE THE INVERSION. THE
AIRMASS BEHIND THE FRONT WILL ALSO COOL TEMPS DOWN TO 10-15
DEGREES BELOW NORMAL.
REST OF TODAY
SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....30 TO 35.
MIN HUMIDITY........67 TO 72 PERCENT.
CWR.................0 PERCENT.
LAL.................1.
WIND - 20 FOOT......LESS THAN 3 MPH.
MIXING HEIGHT.......1000 FT AGL.
TRANSPORT WINDS.....NORTHWEST AROUND 5 MPH.
HAINES INDEX........2 VERY LOW.
VENTILATION INDEX...50 POOR.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
MIN TEMPERATURE.....17 TO 22.
MAX HUMIDITY........88 TO 93 PERCENT.
CWR.................0 PERCENT.
LAL.................1.
WIND - 20 FOOT......LESS THAN 3 MPH.
MIXING HEIGHT.......400 FT AGL.
TRANSPORT WINDS.....EAST AROUND 0 MPH.
HAINES INDEX........2 VERY LOW.
VENTILATION INDEX...0 POOR.
WEDNESDAY
SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....30 TO 35.
MIN HUMIDITY........67 TO 72 PERCENT.
CWR.................0 PERCENT.
LAL.................1.
WIND - 20 FOOT......LESS THAN 3 MPH.
MIXING HEIGHT.......1000 FT AGL.
TRANSPORT WINDS.....SOUTH AROUND 0 MPH.
HAINES INDEX........2 VERY LOW.
VENTILATION INDEX...0 POOR.
FORECASTER...MACFARLANE
REQUESTED BY...NICK BECHARAS
TYPE OF REQUEST...PRESCRIBED
.TAG 2500565.0/BOI
.DELDT 01/14/25
.FORMATTERVERSION 2.0.0
.EMAIL GORDON.WELLS@USDA.GOV,NICHOLAS.BECHARAS@USDA.GOV
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