148
FNUS75 KBOI 130302
FWSBOI

Spot Forecast for COW VALLEY...VALE DISPATCH CENTER
National Weather Service Boise ID
902 PM MDT Fri Jul 12 2024

Forecast is based on forecast start time of 2100 MDT on July 12.
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 IN EFFECT FROM NOON TO 9 PM MDT SATURDAY...
...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH
SUNDAY EVENING...

.DISCUSSION...Expect the usual Northerly winds from Baker Valley
from now through at least 11 PM MDT with gusts up to 25 MPH.
High-based thunderstorms are possible beginning around noon
on Saturday. These early storms may not produce much lightning
however, outflow winds up to 40 MPH are possible. Higher chances (30%)
for thunderstorms with lightning and outflow wind gusts up to 50 MPH
after 8 PM MDT with the threat lasting through at least midnight.
Storms will form southwest of the fire and move northeast over the
course of the evening. Expect northerly winds from Baker Valley late
Saturday night though they should be much lighter than previous nights.
The best chance (50%) for thunderstorms still looks to be Sunday with
lightning and outflow winds up to 60 MPH possible between noon and
midnight Monday.

.REST OF TONIGHT...

Sky/weather.........Clear.
Min temperature.....58 to 66.
Max humidity........27 to 37 percent.
CWR.................0 percent.
LAL.................1.
Wind - 20 foot......Northwest 11 to 17 mph with gusts to around 22
                    mph becoming light northwest around 7 MPH after
                    midnight.
Mixing height.......200 ft AGL.
Transport winds.....Northwest around 10 mph.
Haines Index........5 moderate.
Ventilation Index...20 poor.

.SATURDAY...

Sky/weather.........Mostly Sunny. A slight chance of
                    thunderstorms. Some thunderstorms may produce
                    gusty winds.
Max temperature.....98 to 105.
Min humidity........10 to 15 percent.
CWR.................0 percent.
LAL.................2.
Wind - 20 foot......Southwest 6 to 10 mph. Gusts up to 17 mph in
                    the afternoon. Gusty and erratic winds
                    expected near thunderstorms
Mixing height.......15000 ft AGL.
Transport winds.....West around 20 mph.
Haines Index........6 high.
Ventilation Index...3000 excellent.

.SATURDAY NIGHT...

Sky/weather.........Partly cloudy. A slight chance of
                    thunderstorms. Some thunderstorms may produce
                    gusty winds.
Min temperature.....60 to 67.
Max humidity........27 to 37 percent.
CWR.................0 percent.
LAL.................2.
Wind - 20 foot......West 8 to 14 mph. Gusty and erratic winds
                    expected near thunderstorms.
Mixing height.......300 ft AGL.
Transport winds.....Northwest around 10 mph.
Haines Index........6 high.
Ventilation Index...30 poor.

.SUNDAY...

Sky/weather.........Mostly sunny. A slight chance of
                    thunderstorms after noontime. Some
                    thunderstorms may produce gusty winds.
Max temperature.....93 to 100.
Min humidity........11 to 16 percent.
CWR.................0 percent.
LAL.................1 becoming a 2 after noontime.
Wind - 20 foot......West 5 to 11 mph with gusts to around 18 mph.
Gusty and erratic winds expected near thunderstorms.
Mixing height.......12500 ft AGL.
Transport winds.....West around 15 mph.
Haines Index........5 moderate.
Ventilation Index...1875 excellent.

$$
Forecaster...Smith
Requested by...VALE DISPATCH
Type of request...WILDFIRE
.TAG 2417926.0/BOI
.DELDT 07/12/24
.FormatterVersion 2.0.0
.EMAIL ORVAC@FIRENET.GOV