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000
FNUS75 KBOI 271403
FWSBOI

Spot Forecast for Vinegar...Payette NF
National Weather Service Boise ID
803 AM MDT Tue Jul 27 2021

Forecast is based on forecast start time of 0721 MDT on July 27.
If conditions become unrepresentative...contact the National Weather
Service.

...Increasing threat of showers and thunderstorms through the week...

.DISCUSSION...
An upper ridge continues to be elongated from the central United
States in the  the central portions of the Great Basin through the
week. This allows abundant monsoonal moisture to move into the
region each afternoon bringing a threat of showers and wet
thunderstorms. some thunderstorms may produce brief heavy
downpours.


.TODAY...

Sky/weather.........Partly sunny. Isolated showers and
                    thunderstorms in the afternoon. Some
                    thunderstorms may produce gusty winds in the
                    afternoon. Chance of precipitation 20 percent.
Max temperature.....90 to 95.
Min humidity........17 to 22 percent.
CWR /0.10 inch/.....10 percent.
LAL.................1 in the morning, increasing to 2 in the
                    afternoon.
Wind - eye level....Southwest around 4 mph in the morning, shifting
                    to northwest up to 5 mph by late afternoon.
Mixing height.......9000 ft AGL.
Transport winds.....Southwest around 10 mph.
Haines Index........5 moderate.
Ventilation index...900 excellent.

.TONIGHT...

Sky/weather.........Mostly cloudy. A 20 percent chance of showers
                    and thunderstorms in the evening. Some
                    thunderstorms may produce gusty winds in the
                    evening.
Min temperature.....59 to 64.
Max humidity........54 to 59 percent.
CWR /0.10 inch/.....10 percent.
LAL.................2 in the evening, decreasing to 1 after
                    midnight.
Wind - eye level....Down drainage 3 to 5 mph.
Mixing height.......700 ft AGL.
Transport winds.....Northwest around 5 mph.
Haines Index........3 very low.
Ventilation index...35 poor.

.WEDNESDAY...

Sky/weather.........Partly cloudy. A 40 percent chance of showers
                    and isolated thunderstorms in the afternoon. Some
                    thunderstorms may produce gusty winds in the
                    afternoon.
Max temperature.....84 to 90.
Min humidity........22 to 27 percent.
CWR /0.10 inch/.....20 percent.
LAL.................1 in the morning, increasing to 3 in the
                    afternoon.
Wind - eye level....Southwest to 4 mph in the morning, shifting
                    to northwest up to 4 mph by late afternoon.
Mixing height.......6000 ft AGL.
Transport winds.....West to Northwest around 10 mph.
Haines Index........3 very low.
Ventilation index...500 good.

$$
Forecaster...Redman
Requested by...Grant Lontz
Type of request...WILDFIRE
.TAG 2116484.0/BOI