FNUS75 KRIW 291035
FWSRIW

SPOT FORECAST FOR CYGNET FIRE...NPS YNP
NATIONAL WEATHER SERVICE RIVERTON WY
435 AM MDT WED AUG 29 2012

FORECAST IS BASED ON REQUEST TIME OF 1955 MDT ON AUGUST 28.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS
EVENING...

.DISCUSSION...
IT WILL BE WARM AND VERY DRY TODAY WITH EVEN GUSTIER WINDS THAN YESTERDAY.
VERY LITTLE CHANGE IS EXPECTED THURSDAY. HOWEVER...THURSDAY NIGHT INTO
FRIDAY THE THREAT OF SHOWERS AND THUNDERSTORMS WILL BE ON THE INCREASE.
A RED FLAG WARNING IS IN EFFECT FOR THE AREA FROM NOON TODAY THROUGH
9 PM THIS EVENING.


...THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS...
...HAINES INDEX IS HIGH LEVEL HAINES BOTH DAY AND NIGHT...

FORECASTER...SKRBAC

.TODAY...
SKY/WEATHER.........MOSTLY SUNNY (15-25 PERCENT).
MAX TEMPERATURE.....72-75.
MIN HUMIDITY........11-14 PERCENT.
20 FOOT WINDS.......SOUTH WINDS 10 TO 15 MPH WITH GUSTS TO
                    AROUND 20 MPH...INCREASING IN THE AFTERNOON
                    TO 15-20 MPH WITH GUSTS OF 25 TO 30 MPH.
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH IN THE MORNING...
                    INCREASING TO 25 TO 30 MPH IN THE AFTERNOON.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......4500-5500 FT AGL INCREASING TO 8500-9000 FT
                    AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH INCREASING TO 28 MPH
                    IN THE AFTERNOON.
SMOKE DISPERSAL.....VERY GOOD (100000 KNOT-FT) INCREASING TO
                    EXCELLENT (225000 KNOT-FT) IN THE AFTERNOON.

.TONIGHT...
SKY/WEATHER.........MOSTLY CLEAR (20-30 PERCENT).
MIN TEMPERATURE.....39-42.
MAX HUMIDITY........53-58 PERCENT.
20 FOOT WINDS.......SOUTHWEST WINDS 11 TO 15 MPH WITH GUSTS TO
                    AROUND 20 MPH IN THE EVENING THEN...
                    DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....SOUTHWEST 25 TO 30 MPH DECREASING TO AROUND 15
                    MPH EARLY IN THE MORNING.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......5300-6300 FT AGL DECREASING TO 1000 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....SOUTHWEST 22 TO 27 MPH DECREASING TO 10 TO 15
                    MPH AFTER MIDNIGHT.
SMOKE DISPERSAL.....VERY GOOD (125000 KNOT-FT) DECREASING TO POOR
                    (12500 KNOT-FT) AFTER MIDNIGHT.

.THURSDAY...
SKY/WEATHER.........MOSTLY SUNNY (15-25 PERCENT)...BECOMING PARTLY
                    CLOUDY (40-50 PERCENT) IN THE AFTERNOON.
MAX TEMPERATURE.....72-75.
MIN HUMIDITY........13-16 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH BECOMING SOUTH 10
                    TO 15 MPH WITH GUSTS TO AROUND 20 MPH IN THE
                    AFTERNOON.
RIDGE TOP WINDS.....SOUTHWEST AROUND 20 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......4900-5900 FT AGL INCREASING TO 9500-10000 FT
                    AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 18 TO 22 MPH.
SMOKE DISPERSAL.....VERY GOOD (110000 KNOT-FT) INCREASING TO EXCELLENT
                    (199400 KNOT-FT) IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...
.THURSDAY NIGHT...MOSTLY CLEAR. LOWS AROUND 40. SOUTHWEST WINDS
AROUND 10 MPH.
.FRIDAY...PARTLY CLOUDY WITH SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS IN THE UPPER 30S. HIGHS IN THE LOWER 70S. WINDS GENERALLY
LESS THAN 10 MPH.
.SATURDAY...PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 30S. HIGHS IN THE UPPER 60S. WINDS GENERALLY LESS
THAN 10 MPH.
.SUNDAY...MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS IN THE UPPER
60S. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...SKRBAC
REQUESTED BY...M  HEANEY
REASON FOR REQUEST...WILDFIRE
.TAG 20120828.CYGNE.01/RIW