613
FNUS75 KFGZ 010255
FWSFGZ
SPOT FORECAST FOR 2026 BRIGHT ANGEL FLASH FLOOD...NPS
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
755 PM MST MON AUG 31 2026
FORECAST IS BASED ON FORECAST START TIME OF 0700 MST ON SEPTEMBER 01.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE
NATIONAL WEATHER SERVICE IN FLAGSTAFF, AZ
DISCUSSION
LINGERING MONSOONAL MOISTURE LEAVES A 30% CHANCE FOR IMPACT FROM
ISOLATED SHOWERS AND THUNDERSTORMS TODAY, ESPECIALLY IN THE
AFTERNOON WITH SCATTERED CLOUD COVER. FLASH FLOOD RISK WILL BE
MINIMAL COMPARED TO THE LAST FEW DAYS, BUT CANNOT BE RULED OUT
ENTIRELY. OVERALL, DRY AIR WILL CONTINUE TO MOVE INTO THE REGION
WITH DAILY RAIN CHANCES DROPPING TO AROUND 10 PERCENT WEDNESDAY
AND THURSDAY, UNDER MOSTLY SUNNY SKIES WITH HIGH TEMPERATURES
APPROACHING 100 DEGREES. WINDS WILL FAVOR A LIGHTER, DOWNSTREAM
DIRECTION EARLY IN THE DAY AND THEN BECOME STRONGER WITH AN
UPSTREAM TRAJECTORY IN THE AFTERNOON AT AROUND 10-15 MPH
SUSTAINED.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY TO PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS THROUGH THE DAY.
CHANCE OF PCPN......30 PERCENT.
MAX TEMPERATURE.....AROUND 96.
MIN HUMIDITY........28 PERCENT.
SURFACE WINDS (MPH).EAST/DOWNCANYON WINDS AROUND 5 MPH SHIFTING
TOWARD THE WEST/UPCANYON 10 TO 15 MPH IN THE AFTERNOON.
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF PCPN......10 PERCENT.
MIN TEMPERATURE.....AROUND 67.
MAX HUMIDITY........62 PERCENT.
SURFACE WINDS (MPH).SOUTHWEST WINDS 5 TO 10 MPH.
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF PCPN......10 PERCENT.
MAX TEMPERATURE.....AROUND 98.
MIN HUMIDITY........23 PERCENT.
SURFACE WINDS (MPH).SOUTHWEST WINDS 5 TO 10 MPH, INCREASING TO 10 TO 15 MPH
WITH GUSTS AROUND 20 MPH IN THE AFTERNOON.
A WEATHER FORECAST TABLE FOR YOUR SPOT LOCATION IS LINKED.
THE INFORMATION PROVIDED BY THIS SITE IS FOR PLANNING PURPOSES ONLY
AND IS NOT INTENDED TO SUBSTITUTE INFORMATION PROVIDED BY AN OFFICIAL
NATIONAL WEATHER SERVICE SPOT FORECAST.
HTTPS://WEATHER.GOV/DLH/FWD?LAT=36.105&LON=-112.095&CLAT=36.105&CLON=-112.095
FORECASTER...ZANKER
REQUESTED BY...CHARLIE HARDY
TYPE OF REQUEST...SAR
.TAG 2621006.0/FGZ
.DELDT 08/31/26
.FORMATTERVERSION 2.0.0
.EMAIL CHARLIE_HARDY@NPS.GOV
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