203
FNUS75 KBOI 141027
FWSBOI

Spot Forecast for Tartar Fire...FS
National Weather Service Boise ID
427 AM MDT Fri Aug 14 2026

Forecast is based on forecast start time of 0700 MDT on August 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.

...RED FLAG WARNING FOR SCATTERED THUNDERSTORMS IN EFFECT UNTIL 6 AM MDT
EARLY THIS MORNING...
...SHOWER AND THUNDERSTORM CHANCES CONTINUE TODAY AND SATURDAY...

.DISCUSSION...
Showers and thunderstorms decreasing this morning, but returning
mid to late afternoon. Stronger storms will be capable of gusty outflows
to 35-45 mph and heavy downpours this afternoon. A lull in shower activity
is then expected overnight, with chances increasing again Saturday. Outside
of storms, winds will be southerly during the daytime, shifting to northerly
in the evenings/nights. Temperatures will be cooler, and humidity higher,
than normal today and Saturday. Drier and warmer on Sunday.

.REST OF TODAY (FRIDAY)...

Sky/weather.........Partly sunny. Scattered showers and
                    thunderstorms, mainly in the morning. Some
                    thunderstorms may produce gusty winds. Chance
                    of precipitation 50 percent.
Max temperature.....70 to 85. Coolest to north and east, warmest
                    to south and west.
Min humidity........35 to 47 percent. Driest to south and west.
CWR.................10 percent.
Wind - 20 foot......North and east 4 to 10 mph in the morning shifting
                    to southeast 3 to 7 mph in the afternoon. Afternoon
                    gusts around 20 mph.
                    Then, northwest 10 to 20 mph with gusts 25 to 30
                    mph beginning around 1800 MDT.
                    Gusty and erratic winds expected near thunderstorms.
Mixing height.......6500 ft AGL.
Transport winds.....Southwest around 5 mph.
Ventilation Index...325 fair.

.TONIGHT...

Sky/weather.........Partly cloudy in the evening then becoming
                    mostly cloudy overnight. A slight chance of
                    showers and thunderstorms in the evening.
                    Some thunderstorms may produce
                    gusty winds and heavy rainfall in the evening.
                    Chance of precipitation 20 percent.
Min temperature.....56 to 65.
Max humidity........49 to 69 percent. Lowest across east, highest
                    along west and south.
CWR.................10 percent.
Wind - 20 foot......North 4 to 11 mph. Gusts around 20 mph overnight.
                    Gusty and erratic winds expected near
                    thunderstorms in the evening.
Mixing height.......200 ft AGL.
Transport winds.....Northeast around 5 mph.
Ventilation Index...10 poor.

.SATURDAY...

Sky/weather.........Partly sunny with a slight chance of showers. A
                    chance of showers and thunderstorms in the
                    afternoon. Some thunderstorms may produce gusty
                    winds in the afternoon. Chance of precipitation
                    30 percent.
Max temperature.....71 to 86.
Min humidity........27 to 40 percent. Highest across east and northeast,
                    lowest across south and west.
CWR.................10 percent.
Wind - 20 foot......Southeast to southwest 5 to 12 mph by mid morning.
                    Gusts around 20 mph.
                    Gusty and erratic winds expected near thunderstorms
                    in the afternoon.
Mixing height.......8000 ft AGL.
Transport winds.....Southwest around 10 mph.
Ventilation Index...800 excellent.

$$
Forecaster...Henry
Requested by...Shawn Donnelly
Type of request...WILDFIRE
.TAG 2619434.3/BOI
.DELDT 08/14/26
.FormatterVersion 2.0.0
.EMAIL alexjpena60@gmail.com,sdonnell18@gmail.com