FNUS73 KUNR 181529
FWSUNR

SPOT FORECAST FOR LACREEK NWR...US FISH AND WILDLIFE SERVICE
NATIONAL WEATHER SERVICE RAPID CITY SD
929 AM MDT WED APR 18 2012

FORECAST IS BASED ON IGNITION TIME OF 1200 MDT ON APRIL 18.
IF CONDITIONS BECOME UNREPRESENTATIVE CONTACT THE
NATIONAL WEATHER SERVICE OFFICE IN RAPID CITY.

.DISCUSSION...SKIES WILL BE MOSTLY SUNNY THIS MORNING WITH CLOUDS
INCREASING THROUGH THE DAY. AN AREA OF LOW PRESSURE WILL MOVE INTO
WESTERN SOUTH DAKOTA BY LATE THIS AFTERNOON BRINGING A GOOD CHANCE
OF RAIN SHOWERS AND ISOLATED THUNDERSTORMS TO THE FIRE AREA. HIGH
TEMPERATURES WILL CLIMB INTO THE 60S WITH THE MINIMUM AFTERNOON
RELATIVE HUMIDITY FALLING INTO THE 30 TO 35 PERCENT RANGE. WINDS
WILL BE LIGHT THIS MORNING...THEN BECOME 10 TO 15 MPH OUT OF THE
SOUTHEAST BY NOON...AND INCREASE TO 15 TO 25 MPH WITH GUSTS TO 30
MPH BY LATE AFTERNOON. SCATTERED RAIN SHOWERS AND ISOLATED
THUNDERSTORMS WILL CONTINUE THROUGH THIS EVENING. WINDS WILL SHIFT
TO THE NORTHWEST LATE THIS EVENING.

1400...TEMP 64...RH 35%...WINDS 160 AT 15 TO 20 MPH.
1600...TEMP 65...RH 33%...WINDS 160 AT 15 TO 25 MPH.
1800...TEMP 62...RH 40%...WINDS 180 AT 15 TO 25 GUSTS 30 MPH.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY. A SLIGHT CHANCE OF SHOWERS AND
                    ISOLATED THUNDERSTORMS LATE IN THE AFTERNOON.
MAX TEMPERATURE.....AROUND 65.
MIN HUMIDITY........33 PERCENT.
WIND (20 FT)........WEST WINDS 3 TO 5 MPH SHIFTING TO THE
                    SOUTHEAST 10 TO 15 MPH IN THE EARLY
                    AFTERNOON...THEN INCREASING TO 15 TO 25 MPH
                    WITH GUSTS TO 30 MPH BY LATE AFTERNOON.
CWR.................10 PERCENT.
LAL.................1...INCREASING TO 2 LATE IN THE AFTERNOON.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......5500 TO 6500 FT AGL.
TRANSPORT WINDS.....SOUTHEAST AROUND 15 MPH...INCREASING TO 25
                    MPH BY LATE AFTERNOON.
SMOKE DISPERSAL.....VERY GOOD...INCREASING TO EXCELLENT.

.TONIGHT...

SKY/WEATHER.........CLOUDY. RAIN SHOWERS LIKELY AND ISOLATED
                    THUNDERSTORMS IN THE EVENING...THEN CHANCE OF
                    RAIN SHOWERS AFTER MIDNIGHT.
MIN TEMPERATURE.....AROUND 43.
MAX HUMIDITY........93 PERCENT.
WIND (20 FT)........SOUTH WINDS 10 TO 20 MPH SHIFTING TO THE WEST
                    6 TO 10 MPH AFTER MIDNIGHT.
CWR.................40 PERCENT.
LAL.................2.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......800 TO 1200 FT AGL.
TRANSPORT WINDS.....WEST AROUND 15 MPH.
SMOKE DISPERSAL.....POOR.

.THURSDAY...

SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS IN THE
                    AFTERNOON.
MAX TEMPERATURE.....AROUND 58.
MIN HUMIDITY........47 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 10 TO 20 MPH.
CWR.................20 PERCENT.
LAL.................1.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......5000 TO 6000 FT AGL.
TRANSPORT WINDS.....NORTHWEST AROUND 20 MPH.
SMOKE DISPERSAL.....GOOD.

$$
FORECASTER...SR
REQUESTED BY...SHAWN WOODBURY
TYPE OF REQUEST...PRESCRIBED
.TAG 20120418.LACRE.01/UNR