FNUS75 KCYS 051635
FWSCYS

SPOT FORECAST FOR ORPHA...BUREAU OF LAND MANAGEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
1035 AM MDT TUE OCT 5 2010

FORECAST IS BASED ON REQUEST TIME OF 1010 MDT ON OCTOBER 05.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...A COLD FRONT WILL MOVE ACROSS THE FIRE SITE FROM
THE NORTH BETWEEN NOON AND 1 PM.  WITH THE FRONTAL PASSAGE..THE
WINDS WILL SHIFT TO THE NORTH OR NORTHWEST.  WINDS WILL GUST AS
HIGH AS 25 MPH BEHIND THE FRONT UNTIL AROUND 3 PM...BEFORE
DIMINISHING.  THE LARGE STORM SYSTEM OVER THE SOUTHWEST PART OF
THE COUNTRY WILL PRODUCE SOME SHOWERS AND THUNDERSTORMS JUST TO
THE WEST OF THE FIRE THIS AFTERNOON AND EVENING.  SURFACE HIGH
PRESSURE WILL MOVE OVER THE PLAINS TONIGHT AND WEDNESDAY AND
WILL SHIFT THE WINDS AROUND TO EAST TONIGHT AND THEN BREEZY FROM
THE SOUTHEAST ON WEDNESDAY.  TEMPERATURES WILL ALSO BE COOLER
ON WEDNESDAY...BUT NO PRECIPITATION IS EXPECTED.

.TODAY...

SKY/WEATHER.........SUNNY (5-15 PERCENT) THEN BECOMING PARTLY
                    CLOUDY (45-55 PERCENT) BY MID AFTERNOON.
MAX TEMPERATURE.....77 TO 79.
MIN HUMIDITY........21-27 PERCENT.
WIND (20 FT)........SOUTHWEST 6 TO 12 MPH.  WINDS SHIFTING TO THE
                    NORTH 10 TO 16 MPH BETWEEN NOON AND 1 PM WITH
                    GUSTS TO 25 MPH.
CWR.................0 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......6200 FT AGL INCREASING TO 9200 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....NORTHWEST AROUND 18 MPH.
SMOKE DISPERSAL.....EXCELLENT. (73500-139900 KNOT-FT).

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT) THEN BECOMING
                    PARTLY CLOUDY (50-60 PERCENT).
MIN TEMPERATURE.....AROUND 46.
MAX HUMIDITY........83-89 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 8 TO 12 MPH IN THE EVENING
                    BECOMING EAST 4-8 MPH.
CWR.................0 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......5900 FT AGL DECREASING TO 1000 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....NORTHEAST TO EAST AROUND 10 MPH.
SMOKE DISPERSAL.....EXCELLENT BECOMING POOR AFTER MIDNIGHT.
                    (11800-87800 KNOT-FT).

.WEDNESDAY...

SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT).
MAX TEMPERATURE.....AROUND 72.
MIN HUMIDITY........32-38 PERCENT.
WIND (20 FT)........SOUTHEAST 6 TO 9 MPH INCREASING TO 12 TO 16 MPH
                    BY LATE MORNIGN WITH GUSTS TO 20 MPH IN THE
                    AFTERNOON.
CWR.................0 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......1000 FT AGL INCREASING TO 5400 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....SOUTHEAST AROUND 14 MPH.
SMOKE DISPERSAL.....POOR BECOMING EXCELLENT BY MIDDAY.
                    (1200-76000 KNOT-FT).

$$
FORECASTER...WEILAND
REQUESTED BY...ROB NEIBAUER
TYPE OF REQUEST...WILDFIRE
.TAG 20101005.ORPHA.01/CYS