FNUS75 KCYS 202116
FWSCYS

SPOT FORECAST FOR SAWMILL CANYON...WYOMING STATE FORESTRY
NATIONAL WEATHER SERVICE CHEYENNE WY
316 PM MDT FRI JUL 20 2012

FORECAST IS BASED ON REQUEST TIME OF 1449 MDT ON JULY 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
HIGH PRESSURE IN THE UPPER ATMOSPHERE WILL REMAIN OVER THE CENTRAL
ROCKIES AND HIGH PLAINS THROUGH EARLY NEXT WEEK. THE RESULT WILL
BE CONTINUED HOT DAYTIME TEMPERATURES OVER THE FIRE THROUGH NEXT
WEEK. IN ADDITION...MID AND UPPER LEVEL MOISTURE WILL ROTATE
AROUND THE UPPER LEVEL HIGH AND WILL HELP TO PRODUCE AFTERNOON
AND EVENING SHOWERS AND THUNDERSTORMS THROUGH EARLY NEXT WEEK.
A SURFACE TROUGH WILL BE ALONG THE EASTERN WYOMING BORDER THROUGH
THE WEEKEND.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT). SLIGHT CHANCE OF
                    SHOWERS AND THUNDERSTORMS IN THE EVENING.
MIN TEMPERATURE.....AROUND 66.
MAX HUMIDITY........59 PERCENT.
WIND (20 FT)........SOUTH 6 TO 12 MPH...DECREASING TO 4 TO 7 MPH BY
                    MIDNIGHT. BRIEF GUSTY WINDS TO 45 MPH NEAR THE
                    SHOWERS AND STORMS THROUGH THIS EVENING.
CWR.................20 PERCENT DECREASING TO 0 PERCENT AFTER
                    MIDNIGHT.
LAL.................2.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......6100 FT AGL DECREASING TO 300 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....SOUTH 8 TO 14 MPH THROUGH THE EVENING...THEN
                    5 TO 10 MPH.
SMOKE DISPERSAL.....EXCELLENT BECOMING POOR AFTER MIDNIGHT
                    (67000-2000 KNOT-FT).

.SATURDAY...

SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT) THEN BECOMING
                    PARTLY CLOUDY (40-50 PERCENT). SLIGHT CHANCE OF
                    SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....AROUND 98.
MIN HUMIDITY........16 PERCENT.
WIND (20 FT)........SOUTHWEST 4 TO 8 MPH BECOMING EAST 5 TO 10 MPH
                    IN THE AFTERNOON. BRIEF GUSTY WINDS TO 45 MPH
                    NEAR THE SHOWERS AND STORMS IN THE AFTERNOON.
CWR.................0 PERCENT INCREASING TO 20 PERCENT IN THE
                    AFTERNOON.
LAL.................2.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......4600 FT AGL INCREASING TO 11300 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....SOUTH 5 TO 10 MPH...BECOMING EAST IN THE
                    AFTERNOON.
SMOKE DISPERSAL.....POOR BECOMING TO EXCELLENT BY MIDDAY
                    (3000-101600 KNOT-FT).

$$
FORECASTER...WEILAND
REQUESTED BY...MICHAEL HENN ICT4 T
TYPE OF REQUEST...WILDFIRE
.TAG 20120720.SAWMI.02/CYS