FNUS73 KUNR 282256
FWSUNR

SPOT FORECAST FOR MIRROR-COX LAKES RX...US FOREST SERVICE
NATIONAL WEATHER SERVICE RAPID CITY SD
456 PM MDT THU APR 28 2011

FORECAST IS BASED ON IGNITION TIME OF 1645 MDT ON APRIL 28.
IF CONDITIONS BECOME UNREPRESENTATIVE CONTACT THE
NATIONAL WEATHER SERVICE OFFICE IN RAPID CITY.

.DISCUSSION...
SOUTH TO SOUTHWEST FLOW AND INCREASING CLOUDS ARE EXPECTED
TONIGHT IN ADVANCE OF AN APPROACHING COLD FRONT...WITH STRONGER
WINDS JUST ABOVE THE SURFACE. FRONTAL PASSAGE IS EXPECTED AROUND
10Z...WITH WINDS QUICKLY SHIFTING TO THE NORTHWEST AND BECOMING
GUSTY AFTER THE FRONT PASSES. TEMPERATURES WILL REMAIN RATHER MILD
WITH LOWER RELATIVE HUMIDITIES OVERNIGHT BEFORE FRONTAL
PASSAGE...WITH RELATIVE HUMIDITIES RISING QUICKLY AFTER FRONTAL
PASSAGE. RAIN AND SNOW SHOWERS ARE LIKELY AFTER THE FRONT PASSES.

.TONIGHT...

SKY/WEATHER.........INCREASING CLOUDS. CHANCE OF RAIN SHOWERS LATE.
MIN TEMPERATURE.....AROUND 37.
MAX HUMIDITY........80 PERCENT.
WIND (20 FT)........SOUTH WINDS 10 TO 15 MPH SHIFTING TO THE
                    SOUTHWEST 10 TO 15 MPH IN THE EVENING...WITH GUSTS
                    TO 25 MPH AT RIDGETOP LEVEL.
CWR.................15 PERCENT.
LAL.................1.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......250 TO 500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH.
SMOKE DISPERSAL.....POOR.

.FRIDAY...

SKY/WEATHER.........MOSTLY CLOUDY. RAIN AND SNOW SHOWERS LIKELY IN THE
                    MORNING...THEN CHANCE OF RAIN AND SNOW SHOWERS IN THE
                    AFTERNOON.
MAX TEMPERATURE.....AROUND 44.
MIN HUMIDITY........50 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 15 TO 30 MPH.
CWR.................60 PERCENT.
LAL.................1.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......1500 TO 2500 FT AGL.
TRANSPORT WINDS.....NORTHWEST AROUND 35 MPH.
SMOKE DISPERSAL.....GOOD.

$$
FORECASTER...NWS
REQUESTED BY...DARREN CLABO
TYPE OF REQUEST...PRESCRIBED
.TAG 20110428.MIRRO.03/UNR