FNUS75 KRIW 190930
FWSRIW

SPOT FORECAST FOR CYGNET...NPS YNP
NATIONAL WEATHER SERVICE RIVERTON WY
330 AM MDT WED SEP 19 2012

FORECAST IS BASED ON REQUEST TIME OF 1822 MDT ON SEPTEMBER 18.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

A DRY NORTHWEST FLOW WILL CONTINUE OVER THE NEXT COUPLE OF DAYS.
THIS WILL RESULT IN MILD DAYS...COOL NIGHTS AND DRY CONDITIONS
WITH LITTLE TREND FROM DAY TO DAY...WITH MAINLY LIGHT WEST TO
NORTHWEST WINDS.

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

FORECASTER...MURRELL

.TODAY...
SKY/WEATHER.........SUNNY (10 PERCENT).
MAX TEMPERATURE.....67.
MIN HUMIDITY........20 PERCENT.
20 FOOT WINDS.......LIGHT AND VARIABLE...BECOMING WEST TO NORTHWEST
                    4-8 MPH BY AROUND NOON. GUSTS TO 18 MPH IN THE
                    AFTERNOON.
RIDGE TOP WINDS.....NORTHWEST 5-10 MPH INCREASING TO 10-15 MPH IN THE
                    AFTERNOON.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......7200 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHWEST 5-10 MPH INCREASING TO AROUND 15 MPH
                    IN THE AFTERNOON.
SMOKE DISPERSAL.....GOOD IN THE AFTERNOON.

.TONIGHT...
SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT).
MIN TEMPERATURE.....30.
MAX HUMIDITY........80 PERCENT.
20 FOOT WINDS.......NORTHWEST 3-6 MPH...BECOMING LIGHT AND VARIABLE
                    BY AROUND 9 PM.
RIDGE TOP WINDS.....NORTHWEST 5-10 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......800 FT AGL BY 8 PM
TRANSPORT WINDS.....NORTHWEST 5-10 MPH.
SMOKE DISPERSAL.....DECREASING TO POOR BY 8 PM.

.THURSDAY...
SKY/WEATHER.........SUNNY (10 PERCENT).
MAX TEMPERATURE.....66.
MIN HUMIDITY........22 PERCENT.
20 FOOT WINDS.......LIGHT AND VARIABLE...BECOMING WEST TO NORTHWEST
                    4-8 MPH. GUSTS TO 18 MPH IN THE AFTERNOON.
RIDGE TOP WINDS.....NORTHWEST 5-10 MPH...INCREASING TO AROUND 10 MPH
                    IN THE AFTERNOON.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......6000 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.
SMOKE DISPERSAL.....FAIR TO GOOD IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...

.THURSDAY NIGHT...CLEAR. LOWS AROUND 30. WINDS GENERALLY LESS
THAN 10 MPH.

.FRIDAY...CLEAR. LOWS AROUND 30. HIGHS IN THE UPPER 60S. WINDS
GENERALLY LESS THAN 10 MPH.

.SATURDAY...CLEAR. LOWS IN THE LOWER 30S. HIGHS IN THE UPPER 60S.
WINDS GENERALLY LESS THAN 10 MPH.

.SUNDAY...PARTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE UPPER
60S. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...MURRELL
REQUESTED BY...KEITH KRAUSE
REASON FOR REQUEST...WILDFIRE
.TAG 20120918.CYGNE.01/RIW