FNUS73 KUNR 191431
FWSUNR

SPOT FORECAST FOR SWITCH BACK DRAW...SD
NATIONAL WEATHER SERVICE RAPID CITY SD
831 AM MDT THU JUL 19 2012

FORECAST IS BASED ON REQUEST TIME OF 0758 MDT ON JULY 19.
IF CONDITIONS BECOME UNREPRESENTATIVE CONTACT THE
NATIONAL WEATHER SERVICE OFFICE IN RAPID CITY.

.DISCUSSION...HIGH PRESSURE WILL CONTINUE TO BRING VERY HOT AND
DRY CONDITIONS TO THE AREA TODAY. HIGHS WILL BE IN THE MID TO
UPPER 90S WITH MINIMUM RELATIVE HUMIDITY DROPPING TO AROUND 15
PERCENT. WINDS HOWEVER WILL REMAIN RELATIVELY LIGHT FROM THE SOUTH
UNDER 10 MPH WITH OCCASIONAL HIGHER GUSTS. AN ISOLATED AFTERNOON
STORM OR TWO IS POSSIBLE. ANY STORMS THAT DEVELOP HAVE THE
POTENTIAL TO PRODUCE DRY LIGHTNING.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
                    THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....AROUND 96.
MIN HUMIDITY........16 PERCENT.
WIND (20 FT)........SOUTH WINDS 5 TO 7 MPH.
CWR.................9 PERCENT.
LAL.................2.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......15700 TO 16700 FT AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 14 MPH.
SMOKE DISPERSAL.....EXCELLENT.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
MIN TEMPERATURE.....AROUND 71.
MAX HUMIDITY........42 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 5 TO 6 MPH IN THE EVENING
                    BECOMING LIGHT/TERRAIN INFLUENCED.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......400 TO 900 FT AGL.
TRANSPORT WINDS.....NORTHWEST AROUND 3 MPH.
SMOKE DISPERSAL.....POOR.

.FRIDAY...

SKY/WEATHER.........MOSTLY SUNNY. A SLIGHT CHANCE OF AFTERNOON
                    THUNDERSTORMS.
MAX TEMPERATURE.....AROUND 97.
MIN HUMIDITY........20 PERCENT.
WIND (20 FT)........LIGHT WINDS/TERRAIN INFLUENCED IN THE
                    MORNING...BECOMING SOUTHEAST 6 TO 7 MPH BY
                    LATE MORNING.
CWR.................11 PERCENT.
LAL.................1...BECOMING 2 BY 1200.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......11200 TO 12200 FT AGL.
TRANSPORT WINDS.....EAST AROUND 6 MPH.
SMOKE DISPERSAL.....VERY GOOD.

$$
FORECASTER...CALDERON
REQUESTED BY...DARREN CLABO
TYPE OF REQUEST...WILDFIRE
.TAG 20120719.SWITC.01/UNR