FNUS75 KFGZ 222144
FWSFGZ

SPOT FORECAST FOR SUMMIT 1...NAVAJO REGION
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
244 PM MST SAT MAY 22 2010

FORECAST IS BASED ON REQUEST TIME OF 1429 MST ON MAY 22.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.

...RED FLAG WARNING IN EFFECT UNTIL 9 PM MST THIS EVENING...

.DISCUSSION...CRITICAL FIRE WEATHER CONDITIONS ARE ONGOING FOR MUCH
OF NORTHERN AZ TODAY AS A LOW PRESSURE SYSTEM OVER THE WESTERN U.S.
BRINGS STRONG WINDS AND LOW RELATIVE HUMIDITIES TO OUR REGION. DRY
AND WINDY CONDITIONS WILL CONTINUE ON SUNDAY...BUT RH VALUES WILL BE
A LITTLE HIGHER THAN TODAY DUE TO COOLER TEMPS. IN ANY EVENT...
CRITICAL FIRE WEATHER CONDITIONS ARE STILL POSSIBLE.

.REST OF TODAY...

SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....AROUND 70.
MIN HUMIDITY........13 PCT.
WINDS (20 FT).......WINDY. SOUTHWEST WINDS AROUND 30 MPH WITH GUSTS
                    UP TO 50 MPH.
LAL.................1.
HAINES INDEX........3 VERY LOW.
MAX VENT RATE.......EXCELLENT (303800 KNOT-FT).
CLEARING INDEX......3038.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
MIN TEMPERATURE.....AROUND 44.
MAX HUMIDITY........43 PCT.
WINDS (20 FT).......BREEZY. SOUTHWEST WINDS AROUND 20 MPH WITH GUSTS
                    UP TO 35 MPH DECREASING TO 10 TO 20 MPH AFTER
                    MIDNIGHT.
LAL.................1.
HAINES INDEX........2 VERY LOW.
MIN VENT RATE.......MARGINAL (9600 KNOT-FT).
CLEARING INDEX......96.

.SUNDAY...

SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....AROUND 65.
MIN HUMIDITY........13 PCT.
WINDS (20 FT).......BREEZY. SOUTHWEST WINDS 20 TO 30 MPH WITH GUSTS
                    UP TO 50 MPH.
LAL.................1.
HAINES INDEX........4 LOW.
MAX VENT RATE.......EXCELLENT (427700 KNOT-FT).
CLEARING INDEX......4277.

$$
FORECASTER...PETRO
REQUESTED BY...PAT WILLETTO
REASON FOR REQUEST...WILDFIRE
.TAG 20100522.SUMMI.01/FGZ