FNUS75 KCYS 091038
FWSCYS

SPOT FORECAST FOR REGION 23 COMPLEX...NES/NBF
NATIONAL WEATHER SERVICE CHEYENNE WY
438 AM MDT SUN SEP 9 2012

FORECAST IS BASED ON REQUEST TIME OF 0425 MDT ON SEPTEMBER 09.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 8 PM MDT
THIS EVENING...

.DISCUSSION...
VERY WARM AND DRY WEATHER WILL BE OVER THE BURN AREA TODAY AND
AGAIN ON MONDAY. RATHER GUSTY SOUTHERLY WINDS ARE EXPECTED TO
DEVELOP LATE THIS MORNING AND PERSIST THROUGH MUCH OF TONIGHT.
THIS WILL CREATE DANGEROUS FIRE SPREAD CONDITIONS MAINLY THIS
AFTERNOON INTO EARLY THIS EVENING WHEN HUMIDITY IS EXPECTED TO BE
VERY LOW. LESS WIND IS EXPECTED MONDAY BUT IT WILL STILL BE HOT IN
THE AFTERNOON.

.TODAY...

SKY/WEATHER.........SUNNY (0-5 PERCENT).
MAX TEMPERATURE.....AROUND 89.
MIN HUMIDITY........11 PERCENT.
WIND (20 FT)........SOUTH WINDS 4-6 MPH INCREASING TO 15 TO 20 MPH
                    BY NOON WITH GUSTS UP TO 30 MPH AFTERNOON.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3300 FT AGL INCREASING TO 7700 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....SOUTH AROUND 16 MPH.

.TONIGHT...

SKY/WEATHER.........CLEAR (0-5 PERCENT).
MIN TEMPERATURE.....AROUND 54.
MAX HUMIDITY........47 PERCENT.
WIND (20 FT)........SOUTH WINDS 17 TO 22 MPH AND GUSTY...BECOMING
                    SOUTHWEST AND DECREASING TO 6 TO 9 MPH AFTER
                    3 AM.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......2900 FT AGL DECREASING TO 200 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....SOUTH AROUND 23 MPH.

.MONDAY...

SKY/WEATHER.........SUNNY (5-15 PERCENT).
MAX TEMPERATURE.....AROUND 97.
MIN HUMIDITY........11 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS AROUND 6 TO 8 MPH EARLY IN THE
                    MORNING BECOMING WEST 8 TO 11 MPH BY NOON.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2400 FT AGL INCREASING TO 12400 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....WEST AROUND 12 MPH.

$$
FORECASTER...EMANUEL
REQUESTED BY...TERRY MCSHANE
TYPE OF REQUEST...WILDFIRE
.TAG 20120909.REGIO.01/CYS