FNUS73 KUNR 181415
FWSUNR

SPOT FORECAST FOR SWITCH BACK DRAW...SD
NATIONAL WEATHER SERVICE RAPID CITY SD
815 AM MDT WED JUL 18 2012

FORECAST IS BASED ON REQUEST TIME OF 0745 MDT ON JULY 18.
IF CONDITIONS BECOME UNREPRESENTATIVE CONTACT THE
NATIONAL WEATHER SERVICE OFFICE IN RAPID CITY.

.DISCUSSION...AN UPPER LEVEL RIDGE WILL BRING HOT WEATHER TO THE
AREA FOR THE FORESEEABLE FUTURE. CUMULUS CLOUDS WILL BUILD OVER
THE AREA THIS AFTERNOON WITH ISOLATED THUNDERSTORMS POSSIBLE BY
200 PM. HIGHS TODAY WILL BE AROUND 90. FAIR RELATIVE HUMIDITY
RECOVERY IS EXPECTED TONIGHT WITH HIGHS WELL INTO THE 90S FOR
THURSDAY. HAINES INDICES WILL REACH 6 THURSDAY.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY. CUMULUS CLOUDS BUILDING IN THE AFTERNOON
                    WITH ISOLATED THUNDERSTORMS POSSIBLE BY 200 PM.
MAX TEMPERATURE.....AROUND 90.
MIN HUMIDITY........24 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 5 TO 10 MPH BECOMING EAST.
CWR.................10 PERCENT.
LAL.................1...THEN 2 AFTER 200 PM.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......10700 TO 11700 FT AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 5 MPH.
SMOKE DISPERSAL.....GOOD.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR. ISOLATED EARLY EVENING THUNDERSTORMS
                    POSSIBLE.
MIN TEMPERATURE.....AROUND 67.
MAX HUMIDITY........57 PERCENT.
WIND (20 FT)........EAST WINDS 5 TO 10 MPH IN THE EVENING BECOMING
                    LIGHT.
CWR.................0 PERCENT.
LAL.................2...THEN 1 AFTER MIDNIGHT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......500 TO 1000 FT AGL.
TRANSPORT WINDS.....EAST AROUND 7 MPH.
SMOKE DISPERSAL.....POOR.

.THURSDAY...

SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....AROUND 95.
MIN HUMIDITY........17 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 5 TO 10 MPH.
CWR.................10 PERCENT.
LAL.................1.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......14000 TO 15000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 7 MPH.
SMOKE DISPERSAL.....VERY GOOD.

$$
FORECASTER...EH
REQUESTED BY...DARREN CLABO
TYPE OF REQUEST...WILDFIRE
.TAG 20120718.SWITC.01/UNR