FNUS73 KUNR 192138
FWSUNR

SPOT FORECAST FOR PORCUPINE...SD-RBA
NATIONAL WEATHER SERVICE RAPID CITY SD
338 PM MDT THU JUL 19 2012

FORECAST IS BASED ON REQUEST TIME OF 1600 CDT ON JULY 19.
IF CONDITIONS BECOME UNREPRESENTATIVE CONTACT THE
NATIONAL WEATHER SERVICE OFFICE IN RAPID CITY.

.DISCUSSION...A LINE OF THUNDERSTORMS WILL CROSS THE AREA DURING THE
REST OF THE AFTERNOON. VARIABLE WIND GUSTS UP TO 50 MPH ARE POSSIBLE
AHEAD OF ANY THUNDERSTORMS. LOW TEMPERATURES TONIGHT WILL ONLY FALL
TO AROUND 73 DEGREES WITH MAXIMUM RELATIVE HUMIDITY AROUND 58 PERCENT.
HIGH PRESSURE WILL CONTINUE TO BRING HOT WEATHER ON FRIDAY.

.REST OF TODAY...

SKY/WEATHER.........PARTLY SUNNY. SCATTERED THUNDERSTORMS.
TEMPERATURE.........MAX 104.
RH..................AROUND 15 PERCENT.
WIND (20 FT)........SOUTH WINDS AROUND 12 TO 15 MPH GUSTING TO AROUND 25 MPH.
                    VARIABLE WIND GUSTS TO 50 MPH POSSIBLE NEAR ANY
                    THUNDERSTORMS.
CWR.................20 PERCENT.
LAL.................3.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......11000 TO 15000 FT AGL.
TRANSPORT WINDS.....SOUTH AROUND 25 MPH.
SMOKE DISPERSAL.....EXCELLENT DECREASING TO GOOD LATE IN THE
                    AFTERNOON.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
                    ISOLATED THUNDERSTORMS IN THE EVENING.
TEMPERATURE.........MIN 73.
RH..................MAX 58 PERCENT.
WIND (20 FT)........SOUTH WINDS 12 TO 17 MPH. VARIABLE WIND GUSTS TO 50 MPH
                    POSSIBLE NEAR ANY THUNDERSTORMS.
CWR.................10 PERCENT DECREASING TO 0 PERCENT AFTER
                    MIDNIGHT.
LAL.................2 UNTIL 2400...THEN 1.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......FALLING TO 100 TO 600 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 16 TO 25 MPH INCREASING TO 28 TO 31
                    MPH AFTER MIDNIGHT.
SMOKE DISPERSAL.....GOOD DECREASING TO POOR.

.FRIDAY...

SKY/WEATHER.........SUNNY.
TEMPERATURE.........MAX 107.
RH..................MIN 18 PERCENT.
WIND (20 FT)........SOUTH WINDS 12 TO 14 MPH.
CWR.................0 PERCENT INCREASING TO 10 PERCENT IN THE
                    AFTERNOON.
LAL.................1.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......15300 TO 16300 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 21 TO 30 MPH BECOMING SOUTH AROUND 6
                    MPH.
SMOKE DISPERSAL.....FAIR INCREASING TO VERY GOOD EARLY IN THE
                    MORNING.

$$
FORECASTER...GR
REQUESTED BY...BERT SHIELDS
TYPE OF REQUEST...WILDFIRE
.TAG 20120719.PORCU.01/UNR