Air Resources Laboratory banner image
Air Resources Laboratory web site National Oceanic and Atmospheric Administration (NOAA)

az fire


FNUS75 KFGZ 181255
FWSFGZ

Spot Forecast for High Valley Piles...Prescott National Forest
National Weather Service Flagstaff AZ
555 AM MST Sat Aug 18 2018

Forecast is based on ignition time of 0700 MST on August 18.
If conditions become unrepresentative, contact the
National Weather Service in Flagstaff, AZ

.DISCUSSION...The area begins to dry out today as northwesterly
flow develops. There is a slight chance for isolated thunderstorms
this afternoon. Sunday will be much dryer and warmer. Rain chances
return again by mid week.

.TODAY...

Sky/weather.........Partly cloudy. Slight chance of showers and
                    thunderstorms.
Chance of pcpn......20 percent.
Max temperature.....83 to 87.
Min humidity........32 to 37 percent.
Wind (20 ft)........Light west to northwest winds with gusts up
                    to 15 mph in the afternoon. Gusty and erratic
                    winds expected near thunderstorms.
LAL.................2.
Haines Index........2 very low.
Max Vent Rate.......Good.
Clearing Index......681.
Mixing height.......700 ft agl increasing to 7000 ft agl.
Transport winds.....West 5 to 10 mph.

.TONIGHT...

Sky/weather.........Mostly clear. Slight chance of showers and
                    thunderstorms in the evening.
Chance of pcpn......10 percent.
Min temperature.....59 to 62.
Max humidity........65 to 70 percent.
Wind (20 ft)........Light winds. Gusty and erratic winds expected
                    near thunderstorms in the evening.
LAL.................2.
Haines Index........3 very low.
Min Vent Rate.......Poor.
Clearing Index......4.
Mixing height.......2900 ft agl early in the evening decreasing to
                    300 ft agl in the late evening and overnight.
Transport winds.....Northwest 5 to 10 mph.

.SUNDAY...

Sky/weather.........Mostly sunny.
Chance of pcpn......0 percent.
Max temperature.....88 to 91.
Min humidity........22 to 25 percent.
Wind (20 ft)........Light winds becoming west to northwest at 10 mph
                    with gusts 15 to 20 mph in the afternoon.
LAL.................1.
Haines Index........3 very low.
Max Vent Rate.......Very good.
Clearing Index......879.
Mixing height.......200 ft agl increasing to 9900 ft agl.
Transport winds.....Northwest 5 to 10 mph.

$$
Forecaster...BYERS
Requested by...Sara Sexson
Type of request...PRESCRIBED
.TAG 1814658.0/FGZ
.DELDT 08/18/18
.EMAIL prescott.dispatch@gmail.com