Suppression Forecast
Issued by NWS Flagstaff, AZ

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6
153
FNUS75 KFGZ 211045
FWSFGZ

SPOT FORECAST FOR MYRTLE RX...TNF TONTO NF
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
345 AM MST THU MAY 21 2015

FORECAST IS BASED ON IGNITION TIME OF 1510 MST ON MAY 20.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
AN UPPER LEVEL TROUGH OF LOW PRESSURE IS MOVING TOWARDS ARIZONA TODAY.
THIS BURN SITE CAN EXPECT FASTER 20 FOOT WINDS THAN YESTERDAY AND
VARIABLE MID AND HIGH LEVEL CLOUD COVER. THE TROUGH WILL MOVE ACROSS AZ
ON FRIDAY. WETTING PRECIP AMOUNTS ARE NOT EXPECTED OVER THIS BURN.

.TODAY...

SKY/WEATHER.........PARTLY CLOUDY.
MAX TEMPERATURE.....AROUND 68.
MIN HUMIDITY........20 PCT.
WINDS (20 FT).......SOUTHEAST WINDS AROUND 5 MPH INCREASING TO
                    SOUTH AROUND 15 MPH IN THE AFTERNOON. GUSTS UP
                    TO 25 MPH.
LAL.................1.
HAINES INDEX........4 LOW.
MAX VENT RATE.......EXCELLENT (142400 KNOT-FT).
CLEARING INDEX......1424.
MIXING HEIGHT.......1200 FT AGL INCREASING TO 7000 FT AGL.
TRANSPORT WINDS.....SOUTH 5 TO 10 KNOTS INCREASING TO 15 TO 20
                    KNOTS IN THE AFTERNOON.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
MIN TEMPERATURE.....AROUND 45.
MAX HUMIDITY........55 PCT.
WINDS (20 FT).......SOUTHWEST WINDS 10-20 MPH THROUGH SUNSET BECOMING LIGHT.
LAL.................1.
HAINES INDEX........2 VERY LOW.
MIN VENT RATE.......POOR (2100 KNOT-FT).
CLEARING INDEX......21.
MIXING HEIGHT.......5100 FT AGL EARLY IN THE EVENING DECREASING TO
                    1900 FT AGL IN THE LATE EVENING AND OVERNIGHT.
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 KNOTS DECREASING TO 5 TO 10
                    KNOTS AFTER MIDNIGHT.

.FRIDAY...

SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
                    SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS
                    THROUGH THE DAY.
MAX TEMPERATURE.....AROUND 59.
MIN HUMIDITY........32 PCT.
WINDS (20 FT).......SOUTH WINDS AROUND 10 MPH WITH GUSTS UP TO 25
                    MPH.
LAL.................2.
HAINES INDEX........2 VERY LOW.
MAX VENT RATE.......EXCELLENT (145900 KNOT-FT).
CLEARING INDEX......1459.
MIXING HEIGHT.......1200 FT AGL INCREASING TO 6400 FT AGL.
TRANSPORT WINDS.....SOUTH AROUND 5 KNOTS INCREASING TO 15 TO 20
                    KNOTS IN THE LATE MORNING AND AFTERNOON.

$$
FORECASTER...41
REQUESTED BY...RICH HARNDEN
REASON FOR REQUEST...PRESCRIBED
.TAG 20150520.MYRTL.02/FGZ



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.