FNUS75 KTWC 171728
FWSTWC

SPOT FORECAST FOR RATTLESNAKE...CORONADO NATIONAL FOREST NATIONAL
WEATHER SERVICE TUCSON AZ
1027 AM MST SUN MAY 17 2009

FORECAST IS BASED ON REQUEST TIME OF 1011 MST ON MAY 17. IF
CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...A RIDGE OF HIGH PRESSURE STRENGTHENING OVER THE GREAT
BASIN REGION AND A WEAK SURFACE FRONT EXTENDING ACROSS THE EXTREME
SOUTHEAST CORNER OF ARIZONA WILL RESULT IN AN EASTERLY WIND ACROSS
THE AREA. THIS WILL PULL MOISTURE INTO THE AREA FROM THE EAST. THIS
INFLUX IN MOISTURE WILL LEAD TO AFTERNOON AND EVENING CLOUDINESS...
AS WELL AS ISOLATED DRY THUNDERSTORMS. THUNDERSTORMS THAT DEVELOP
WILL BE CAPABLE OF PRODUCING STRONG...ERRATIC AND GUSTY WINDS TO 50
MPH.

THE NATURE OF THESE STORMS WILL EVOLVE INTO A MIX OF WET AND DRY
STORMS AS THE WEEK PROGRESSES...AS EASTERLY FLOW CONTINUES TO
REINFORCES MOISTURE INTO THE AREA. DRIER AIR IS THEN EXPECTED TO
WORK ITS WAY BACK INTO THE REGION FROM THE WEST AND NORTHWEST NEXT
WEEKEND.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY IN THE MORNING BECOMING PARTLY CLOUDY
                    WITH ISOLATED DRY THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....88 TO 93 DEGS.
MIN HUMIDITY........20 TO 25 PCT.
20-FOOT WINDS.......SOUTHEAST 9 TO 14 MPH WITH GUSTS TO 25 MPH. GUSTY AND
                    ERRATIC WINDS NEAR DRY THUNDERSTORMS.
LAL.................1 IN THE MORNING...THEN 2.
CHANCE OF RAIN......0 PERCENT IN THE MORNING...THEN 10-15 PERCENT.
HAINES INDEX........3 VERY LOW.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY. ISOLATED DRY THUNDERSTORMS IN THE
                    EARLY EVENING.
MIN TEMPERATURE.....58 TO 63 DEGS.
MAX HUMIDITY........48 TO 53 PCT.
20-FOOT WINDS.......SOUTHEAST 8 TO 12 MPH WITH OCCASIONAL GUSTS TO 25 MPH.
                    GUSTY AND ERRATIC WINDS NEAR DRY THUNDERSTORMS.
LAL.................2 IN THE EARLY EVENING...THEN 1.
CHANCE OF RAIN......10-15 PERCENT.
HAINES INDEX........4 LOW.

.MONDAY...

SKY/WEATHER.........MOSTLY SUNNY IN THE MORNING BECOMING PARTLY CLOUDY
                    WITH A SLIGHT CHANCE OF MAINLY DRY THUNDERSTORMS
                    IN THE AFTERNOON.
MAX TEMPERATURE.....91 TO 96 DEGS.
MIN HUMIDITY........15 TO 20 PCT.
20-FOOT WINDS.......SOUTHEAST 8 TO 12 MPH WITH GUSTS TO 25 MPH. GUSTY
                    AND ERRATIC WINDS NEAR DRY THUNDERSTORMS.
LAL.................2 IN THE AFTERNOON...OTHERWISE 1.
CHANCE OF RAIN......15-20 PERCENT IN THE AFTERNOON.
HAINES INDEX........3 VERY LOW.

$$
FORECASTER...FIRE WEATHER FORECASTER
REQUESTED BY...GLOBE HS
TYPE OF REQUEST...WILDFIRE
.TAG 20090517.RATTL.01/TWC