FNUS73 KUNR 281458
FWSUNR

SPOT FORECAST FOR LACREEK RX...US FISH AND WILDLIFE SERVICE
NATIONAL WEATHER SERVICE RAPID CITY SD
858 AM MDT TUE SEP 28 2010

FORECAST IS BASED ON IGNITION TIME OF 1030 MDT ON SEPTEMBER 28.
IF CONDITIONS BECOME UNREPRESENTATIVE CONTACT THE
NATIONAL WEATHER SERVICE OFFICE IN RAPID CITY.

.DISCUSSION...A RIDGE OF HIGH PRESSURE ALOFT WILL KEEP SUNNY SKIES
AND DRY CONDITIONS AROUND FOR THE NEXT SEVERAL DAYS. TODAY WILL BE
THE WARMEST DAY OF THE WEEK WITH HIGH TEMPERATURES IN THE MID TO
UPPER 80S ALONG WITH MINIMUM AFTERNOON RELATIVE HUMIDITIES AROUND
20 PERCENT. A COLD FRONT WILL CROSS THE FIRE AREA EARLY WEDNESDAY
MORNING...SWITCHING WINDS AROUND TO THE NORTH. NORTH WINDS ARE
EXPECTED TO BE 15 TO 30 MPH FOR MUCH OF THE DAY ON WEDNESDAY.

.TODAY...

SKY/WEATHER.........SUNNY.
TEMPERATURE.........71 AT IGNITION...MAX 87.
RH..................40 PERCENT AT IGNITION...MIN 20 PERCENT.
WIND (20 FT)........WINDS SOUTHWEST AT 6 TO 12 MPH.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......3500 TO 4500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 10 TO 16 MPH.
SMOKE DISPERSAL.....FAIR INCREASING TO GOOD IN THE AFTERNOON.

.TONIGHT...

SKY/WEATHER.........CLEAR.
TEMPERATURE.........MIN 51-53.
RH..................MAX 75-80 PERCENT.
WIND (20 FT)........WEST WINDS 4 TO 8 MPH.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......100 TO 400 FT AGL.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
SMOKE DISPERSAL.....POOR.

.WEDNESDAY...

SKY/WEATHER.........SUNNY.
TEMPERATURE.........MAX 73-76.
RH..................MIN 28-31 PERCENT.
WIND (20 FT)........NORTH WINDS 10 TO 16 MPH INCREASING TO 18 TO 28
                    MPH IN THE LATE MORNING AND AFTERNOON.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......4000 TO 5000 FT AGL.
TRANSPORT WINDS.....NORTH 15 TO 25 MPH INCREASING TO 30 TO 35 MPH.
SMOKE DISPERSAL.....FAIR INCREASING TO VERY GOOD LATE IN THE
                    MORNING...THEN INCREASING TO EXCELLENT IN THE
                    AFTERNOON.

$$
FORECASTER...SR
REQUESTED BY...CHRIS MASSON
TYPE OF REQUEST...PRESCRIBED
.TAG 20100928.LACRE.01/UNR