FNUS73 KUNR 202249
FWSUNR

SPOT FORECAST FOR MAHONEY...US FOREST SERVICE
NATIONAL WEATHER SERVICE RAPID CITY SD
449 PM MDT WED OCT 20 2010

FORECAST IS BASED ON IGNITION TIME OF 1000 MDT ON OCTOBER 21.
IF CONDITIONS BECOME UNREPRESENTATIVE CONTACT THE
NATIONAL WEATHER SERVICE OFFICE IN RAPID CITY.

.DISCUSSION...AN UPPER LEVEL RIDGE WILL BRING DRY AND WARM WEATHER
TO THE AREA THROUGH FRIDAY. WINDS WILL BE VARIABLE TERRAIN DRIVEN
TONIGHT AND THURSDAY. FAIR RELATIVE HUMIDITY IS EXPECTED
TONIGHT...WITH MINIMUM RELATIVE HUMIDITIES DIPPING TO AROUND 20
PERCENT THURSDAY. SMOKE DISPERSAL WILL BE POOR DUE TO LOW
TRANSPORT WINDS.

.REST OF TONIGHT...

SKY/WEATHER.........CLEAR.
TEMPERATURE.........MIN 36.
RH..................MAX 59 PERCENT.
WIND (20 FT)........VARIABLE TERRAIN DRIVEN WIND LESS THAN 8 MPH.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......300 FT AGL.
TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.
SMOKE DISPERSAL.....POOR.

.THURSDAY...

SKY/WEATHER.........SUNNY.
TEMPERATURE.........53 AT IGNITION...MAX 68.
RH..................32 PERCENT AT IGNITION...MIN 20 PERCENT.
WIND (20 FT)........VARIABLE TERRAIN DRIVEN WINDS LESS THEN 10 MPH.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......INCREASING TO 3000 FT AGL.
TRANSPORT WINDS.....WEST 5 TO 10 MPH.
SMOKE DISPERSAL.....POOR.

$$
FORECASTER...EH
REQUESTED BY...JAY MILLER
TYPE OF REQUEST...PRESCRIBED
.TAG 20101021.MAHON.01/UNR