FNUS75 KCYS 070117
FWSCYS

SPOT FORECAST FOR NORTH FORK BURN PILE...CENTENNIAL VALLEY VFD
NATIONAL WEATHER SERVICE CHEYENNE WY
717 PM MDT THU OCT 6 2011

FORECAST IS BASED ON IGNITION TIME OF 0700 MDT ON OCTOBER 08.

IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...AN ACTIVE WEATHER PATTERN IS EXPECTED OVER THE AREA
THROUGH THE WEEKEND. DRIER AIR AND VERY WINDY CONDITIONS WILL WORK
INTO SOUTHEAST WYOMING LATER TONIGHT AND CONTINUE INTO FRIDAY
AFTERNOON. ANOTHER STORM SYSTEM WILL MOVE NORTHEAST ACROSS COLORADO
AND STALL OVER THE AREA FOR THE WEEKEND. SNOW LEVELS WILL LOWER TO
VALLEY FLOORS WITH 2 TO 4 INCHES OF SNOW POSSIBLE THROUGH SATURDAY
ON THE EASTERN SLOPES OF THE SNOWY RANGE. TEMPERATURES WILL TURN
SHARPLY COOLER FOR FRIDAY AND CONTINUE THROUGH THE DAY ON SUNDAY.
CONDITIONS WILL BEGIN TO IMPROVE AND TEMPERATURES WILL
MODERATE BY EARLY NEXT WEEK.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). SCATTERED SNOW
                    SHOWERS IN THE EVENING...THEN ISOLATED SNOW
                    SHOWERS AFTER MIDNIGHT.
MIN TEMPERATURE.....AROUND 25.
MAX HUMIDITY........78 PERCENT.
WIND (20 FT)........WINDY. SOUTHWEST WINDS 29 TO 31 MPH WITH GUSTS
                    TO AROUND 50 MPH.
CWR.................30 PERCENT.
LAL.................1.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2400-2900 FT AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 43 MPH.
SMOKE DISPERSAL.....EXCELLENT TO EXCELLENT (85300-114300 KNOT-FT).

.FRIDAY...

SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). SLIGHT CHANCE OF
                    SNOW SHOWERS IN THE MORNING...THEN CHANCE OF
                    SNOW SHOWERS IN THE AFTERNOON.
MAX TEMPERATURE.....AROUND 35.
MIN HUMIDITY........45 TO 55 PERCENT.
WIND (20 FT)........WINDY. WEST WINDS 25 TO 40 MPH WITH GUSTS TO
                    AROUND 55 MPH.
CWR.................30 PERCENT.
LAL.................1.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3100-3800 FT AGL.
TRANSPORT WINDS.....WEST AROUND 39 MPH.
SMOKE DISPERSAL.....EXCELLENT (106000-124900 KNOT-FT).

.FRIDAY NIGHT...

SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). SNOW SHOWERS
                    LIKELY.
MIN TEMPERATURE.....AROUND 23.
MAX HUMIDITY........90 PERCENT.
WIND (20 FT)........BREEZY. SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS
                    TO AROUND 35 MPH...DIMINISHING AFTER MIDNIGHT.
CWR.................40 PERCENT.
LAL.................1.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......500-900 FT AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 23 MPH.


.SATURDAY...

SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). SNOW SHOWERS
                    LIKELY
MAX TEMPERATURE.....AROUND 36.
MIN HUMIDITY........AROUND 75 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 5 TO 10 MPH SHIFTING TO THE
                    NORTHEAST IN THE AFTERNOON AND INCREASING TO 10
                    15 MPH.
CWR.................70 PERCENT.
LAL.................1.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3100-3800 FT AGL.
TRANSPORT WINDS.....NORTH AROUND 20 MPH.



$$
REQUESTED BY...ERIC GREGORY
TYPE OF REQUEST...PRESCRIBED
.TAG 20111008.NORTH.01/CYS