FNUS75 KCYS 202125
FWSCYS

SPOT FORECAST FOR CAMP GUERNSEY...CAMP GUERNSEY FD
NATIONAL WEATHER SERVICE CHEYENNE WY
325 PM MDT TUE AUG 20 2013

FORECAST IS BASED ON REQUEST TIME OF 1505 MDT ON AUGUST 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

THERE REMAINS A 20 PERCENT CHANCE FOR A THUNDERSTORM THROUGH AROUND
2000 MDT THIS EVENING FOR THE BURN SITE AS AN UPPER LEVEL DISTURBANCE MOVES
OVERHEAD. WINDS WILL GENERALLY BE OUT OF THE NORTH TO NORTHWEST WITH
GUSTS OF 15 TO 17 MPH THROUGH SUNSET BEFORE BECOMING OUT OF THE
EAST-NORTHEAST AROUND 5 MPH OVERNIGHT. GUSTY ERRATIC WINDS OF 35 TO
40 MPH AND LIGHT RAIN ARE POSSIBLE WITH ANY THUNDERSTORMS THAT
MOVE OVER THE BURN SITE. HUMIDITIES WILL RECOVER WELL TONIGHT
ABOVE 60 PERCENT. FOR WEDNESDAY...WINDS WILL BECOME EASTERLY AT 8 TO
12 MPH WITH GUSTS UP TO 20 MPH IN THE AFTERNOON. THERE WILL BE A
20 PERCENT FOR THUNDERSTORMS AFTER 1300...WITH THE POSSIBILITY OF
WETTING RAINS AND GUSTY ERRATIC WINDS WITH ANY THUNDERSTORM.

.REST OF TODAY...

SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT). 20 PERCENT CHANCE FOR
                    ISOLATED SHOWERS AND THUNDERSTORMS THROUGH 2000 MDT.
MAX TEMPERATURE.....AROUND 96.
MIN HUMIDITY........12 PERCENT.
WIND (20 FT)........NORTHWEST 5 TO 9 MPH WITH GUSTS 15 TO 18 MPH THROUGH
                    SUNSET.
CWR.................20 PERCENT.
LAL.................2.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......10400 FT AGL.
TRANSPORT WINDS.....WEST AROUND 14 MPH.
SMOKE DISPERSAL.....EXCELLENT (70000 KNOT-FT).

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT). ISOLATED SHOWERS
                    AND THUNDERSTORMS DIMINISHING AFTER 2000 MDT.
MIN TEMPERATURE.....AROUND 66.
MAX HUMIDITY........65 PERCENT.
WIND (20 FT)........DOWNSLOPE/DOWNVALLEY 3-6 MPH.
CWR.................20 PERCENT DECREASING TO 10 PERCENT AFTER
                    2000 MDT.
LAL.................2.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......6300 FT AGL DECREASING TO 100 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....NORTH AROUND 9 MPH.
SMOKE DISPERSAL.....POOR TO GOOD (2000-49100 KNOT-FT).

.WEDNESDAY...

SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT). A 20 PERCENT CHANCE
                    FOR SHOWERS AND THUNDERSTORMS AFTER 1300 MDT.
MAX TEMPERATURE.....AROUND 87.
MIN HUMIDITY........29 PERCENT.
WIND (20 FT)........UPSLOPE/UPVALLEY 3-6 MPH...BECOMING EASTERLY AT
                    6 TO 10 MPH WITH GUSTS TO 20 MPH AFTER 1400.
CWR.................10 PERCENT INCREASING TO 20 PERCENT IN THE
                    AFTERNOON.
LAL.................1.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......4200 FT AGL INCREASING TO 8000 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....SOUTHEAST AROUND 17 MPH.
SMOKE DISPERSAL.....FAIR TO EXCELLENT (28400-69900 KNOT-FT).

$$
FORECASTER...MAZUR
REQUESTED BY...PLATTE COUNTY
TYPE OF REQUEST...WILDFIRE
.TAG 20130820.CAMPG.01/CYS