089
FNUS75 KFGZ 231008
FWSFGZ

Spot Forecast for Three Sisters RX...USFS
National Weather Service Flagstaff AZ
308 AM MST Thu May 23 2024

Forecast is based on ignition time of 0600 MST on May 23.
If conditions become unrepresentative, contact the
National Weather Service in Flagstaff, AZ

.DISCUSSION...Dry and mild conditions continue today and on
Friday. Breezy southwest winds today, becoming gusty on Friday.
Overnight winds will be light, and largely terrain-driven. RH
values remain low today, then begin to increase slightly for
Friday along with decent overnight recovery expected.

.TODAY...

Sky/weather.........Sunny.
Chance of pcpn......0 percent.
Max temperature.....70-72 degrees.
Min humidity........16-19 percent.
Wind (20 ft)........Southwest winds 10 to 15 mph. Afternoon gusts
                    up to 25 mph.
LAL.................1.
Haines Index........4 or low potential for large plume dominated
                    fire growth.
Max Vent Rate.......Excellent.
Clearing Index......2052.
Mixing height.......9000 ft AGL.
Transport winds.....Southwest 15 to 20 knots increasing to around
                    25 knots late in the afternoon.

.TONIGHT...

Sky/weather.........Clear.
Chance of pcpn......0 percent.
Min temperature.....41-43 degrees.
Max humidity........57-59 percent.
Wind (20 ft)........South winds 5 to 10 mph.
LAL.................1.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.
Min Vent Rate.......Poor.
Clearing Index......4.
Mixing height.......100 ft AGL.
Transport winds.....Southwest 10 to 15 knots shifting to the south
                    around 5 knots overnight.

.FRIDAY...

Sky/weather.........Sunny.
Chance of pcpn......0 percent.
Max temperature.....69-71 degrees.
Min humidity........19-21 percent.
Wind (20 ft)........South winds 15 to 25 mph, with afternoon gusts
                    up to 35 mph.
LAL.................1.
Haines Index........4 or low potential for large plume dominated
                    fire growth.
Max Vent Rate.......Excellent.
Clearing Index......2714.
Mixing height.......8300 ft AGL.
Transport winds.....South around 15 knots increasing to southwest
                    around 35 knots.

.FORECAST DAYS 3 THROUGH 5...

Turning warmer with continued dry conditions. Breezy southwest
winds 15 to 20 mph with gusts up to 30 mph on Saturday. Lighter
winds on Sunday and Monday from the south/southwest 10 to 15 mph.
Gusts up to 20 mph in the afternoon. Minimum RH around 20%,
falling to around 10-15% for Sunday and Monday.

See the Fire Weather Planning Forecast for additional details in
the extended.

$$
Forecaster...HUMPHREYS
Requested by...Cody Payne
Type of request...PRESCRIBED
.TAG 2414939.0/FGZ
.DELDT 05/23/24
.FormatterVersion 2.0.0
.EMAIL Cody.payne@usda.gov,Wyler.heffelfinger@usda.gov,Michael.uebel@usda.gov