FNUS73 KUNR 192034
FWSUNR

SPOT FORECAST FOR FORK...SD-BKF
NATIONAL WEATHER SERVICE RAPID CITY SD
234 PM MDT FRI OCT 19 2012

FORECAST IS BASED ON REQUEST TIME OF 1414 MDT ON OCTOBER 19.
IF CONDITIONS BECOME UNREPRESENTATIVE CONTACT THE
NATIONAL WEATHER SERVICE OFFICE IN RAPID CITY.

.DISCUSSION...AN UPPER LEVEL RIDGE WILL BRING DRY AND WARMER
WEATHER TO THE FIRE AREA THROUGH SATURDAY. MINIMUM RELATIVE
HUMIDITIES WILL DIP INTO THE MID 20S WITH FAIR RECOVERY AT NIGHT.

A COLD FRONT WILL DROP THROUGH THE SOUTH DAKOTA PLAINS SATURDAY
EVENING...BUT IT IS UNLIKELY THE INITIAL WIND SHIFT WILL MAKE IT
TO THE ELEVATION OF THE FIRE AREA. IF THE FRONT IS DEEP ENOUGH
INITIALLY...GUSTY NORTHWEST WINDS WOULD RESULT LATE SATURDAY NIGHT.

.REST OF TODAY...

SKY/WEATHER.........PARTLY SUNNY.
MAX TEMPERATURE.....AROUND 58.
MIN HUMIDITY........27 PERCENT.
WIND (20 FT)........SOUTHWEST LESS THAN 10 MPH.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......4000 FT AGL.
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH.
SMOKE DISPERSAL.....FAIR.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY.
MIN TEMPERATURE.....AROUND 34.
MAX HUMIDITY........58 PERCENT.
WIND (20 FT)........SOUTHWEST LESS THAN 10 MPH BECOMING LIGHT AND VARIABLE.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......200 FT AGL.
TRANSPORT WINDS.....WEST AROUND 5 MPH.
SMOKE DISPERSAL.....POOR.

.SATURDAY...

SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....AROUND 65.
MIN HUMIDITY........24 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 10 TO 20 MPH.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......7100 TO 8100 FT AGL.
TRANSPORT WINDS.....WEST AROUND 20 MPH.
SMOKE DISPERSAL.....EXCELLENT.

$$
FORECASTER...EH
REQUESTED BY...IC
TYPE OF REQUEST...WILDFIRE
.TAG 20121019.FORK_.02/UNR