FNUS75 KCYS 190454
FWSCYS

SPOT FORECAST FOR HATCHER FIRE...BUREAU OF LAND MANAGEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
1054 PM MDT TUE JUN 18 2013

FORECAST IS BASED ON REQUEST TIME OF 2246 MDT ON JUNE 18.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
SOUTHWEST FLOW ALOFT WILL CONTINUE THE REST OF THE NIGHT AS
SURFACE LOW PRESSURE DEVELOPS OVER NORTHWEST WYOMING. SOUTH WINDS
WILL SLOWLY INCREASE THE REST OF THE NIGHT. DURING THE DAY ON
WEDNESDAY...SOUTHWEST FLOW ALOFT WILL STRENGTHEN WITH SURFACE LOW
PRESSURE STRENGTHENING ACROSS EASTERN MONTANA WITH SOUTHWEST WINDS
INCREASING SIGNIFICANTLY ACROSS THE BURN SITE IN THE AFTERNOON.
A DRY PACIFIC ORIGIN COLD FRONT WILL MOVE ACROSS THE BURN SITE
AFTER MIDNIGHT WEDNESDAY NIGHT WITH WINDS BECOMING WEST.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT) THEN BECOMING
                    MOSTLY CLOUDY (55-65 PERCENT). SCATTERED
                    SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....AROUND 77.
MIN HUMIDITY........26 PERCENT.
WIND (20 FT)........UPSLOPE/UPVALLEY 5-9 MPH BECOMING SOUTHEAST 10
                    TO 13 MPH WITH HIGHER GUSTS IN THE LATE MORNING
                    AND AFTERNOON.
CWR.................10 PERCENT INCREASING TO 30 PERCENT IN THE
                    AFTERNOON.
LAL.................3.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......6600 FT AGL INCREASING TO 9400 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....SOUTHEAST AROUND 14 MPH.
SMOKE DISPERSAL.....GOOD TO EXCELLENT (44100-148500 KNOT-FT).

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT).
MIN TEMPERATURE.....AROUND 51.
MAX HUMIDITY........66 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 8 TO 9 MPH SHIFTING TO THE
                    SOUTH 8 TO 11 MPH OVERNIGHT. GUSTS UP TO 20 MPH.
CWR.................10 PERCENT.
LAL.................2.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......4400 FT AGL DECREASING TO 300 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....SOUTH AROUND 15 MPH.
SMOKE DISPERSAL.....POOR TO EXCELLENT (3100-60300 KNOT-FT).

.WEDNESDAY...

SKY/WEATHER.........SUNNY (5-15 PERCENT).
MAX TEMPERATURE.....AROUND 87.
MIN HUMIDITY........10 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 15 TO 25 MPH. GUSTS UP TO 25
                    MPH INCREASING TO 35 MPH IN THE AFTERNOON.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......8500 FT AGL INCREASING TO 15800 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST AROUND 21 MPH.
SMOKE DISPERSAL.....EXCELLENT TO EXCELLENT (117400-359800 KNOT-FT).

$$
FORECASTER...RUBIN
REQUESTED BY...RAWLINS DISPATCH
TYPE OF REQUEST...WILDFIRE
.TAG 20130618.HATCH.01/CYS