FNUS74 KOUN 241610
FWSOUN

SPOT FORECAST FOR BLACK HILL...BIA
NATIONAL WEATHER SERVICE NORMAN OK
1110 AM CDT TUE MAR 24 2009

FORECAST IS BASED ON IGNITION TIME OF 1100 CDT ON MARCH 25.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
EASTERLY WINDS FROM 15 TO 20 MPH MAY DEVELOP ON WEDNESDAY
AFTERNOON. A CHANNELING EFFECT BETWEEN THE HIGHER TERRAIN TO THE
NORTHEAST AND SOUTHWEST OF THE SPOT FORECAST AREA MAY MAKE THESE
WINDS A LITTLE STRONGER AT TIMES. AFTERNOON RELATIVE HUMIDITY
SHOULD ONLY FALL TO AROUND 40 PERCENT AS COOL AIR WILL REMAIN IN
PLACE. A CHANCE OF RAIN EXISTS LATE TOMORROW INTO THURSDAY
MORNING...WITH WARMER TEMPERATURES AND SLIGHTLY LOWER HUMIDITY EXPECTED.

.WEDNESDAY...

SKY/WEATHER.........PARTLY SUNNY (55-65 PERCENT). SLIGHT CHANCE OF
                    SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....49 AT IGNITION...MAX 58.
MIN HUMIDITY........58 PERCENT AT IGNITION...MIN 49 PERCENT.
20-FOOT WINDS.......WINDS EAST AT 8 MPH AT IGNITION...OTHERWISE
                    LIGHT WINDS BECOMING SOUTHEAST 5 TO 9 MPH.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS IN THE AFTERNOON.
MIXING HEIGHT.......200-1700 FT AGL INCREASING TO 2900 FT AGL AT
                    IGNITION...OTHERWISE 2400-4000 FT AGL IN THE
                    LATE MORNING AND AFTERNOON.
TRANSPORT WINDS.....SOUTHEAST 7 TO 13 MPH.

TIME (CDT)      11 AM  1 PM   3 PM   5 PM   7 PM   9 PM
SKY (%).........MCLDY  MCLDY  MCLDY  MCLDY  PCLDY  PCLDY
WEATHER COV.....       S CHC  S CHC  S CHC  S CHC  S CHC
WEATHER TYPE....NONE   RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
TEMP............49     55     57     57     56     50
RH..............58     49     49     51     51     66
20 FT WIND......E 9    E 9    SE 9   SE 9   E 8    E 9
20 FT WIND GUST.15     15     15     15     10     15
MIX HGT (FT)....2900   3500   4000   4000   3200   1100
MIX HGT (M).....880    1070   1220   1220   980    340
TRANSPORT WIND..NE 12  E 9    SE 10  SE 13  SE 13  E 8
TRAN WIND (M/S).NE 5   E 4    SE 4   SE 6   SE 6   E 4

.WEDNESDAY NIGHT...

SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT) THEN BECOMING
                    CLOUDY (95-100 PERCENT). SLIGHT CHANCE OF
                    THUNDERSTORMS IN THE EVENING. SLIGHT CHANCE OF
                    RAIN SHOWERS THROUGH THE NIGHT.
MIN TEMPERATURE.....MIN 40.
MAX HUMIDITY........MAX 100 PERCENT.
20-FOOT WINDS.......SOUTH WINDS 6 TO 9 MPH. GUSTY AND ERRATIC WINDS
                    EXPECTED NEAR THUNDERSTORMS IN THE EVENING.
MIXING HEIGHT.......2200-3200 FT AGL DECREASING TO 300-1100 FT AGL
                    EARLY IN THE EVENING.
TRANSPORT WINDS.....NORTH 5 TO 13 MPH SHIFTING TO THE NORTHEAST
                    AROUND 2 MPH EARLY IN THE MORNING...THEN
                    SHIFTING TO THE NORTHWEST EARLY IN THE MORNING.

.THURSDAY...

SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT).
MAX TEMPERATURE.....MAX 61.
MIN HUMIDITY........MIN 47 PERCENT.
20-FOOT WINDS.......EAST WINDS 6 TO 13 MPH.
MIXING HEIGHT.......300-1600 FT AGL INCREASING TO 4600-5900 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 3 TO 10 MPH INCREASING TO AROUND 13
                    MPH LATE IN THE AFTERNOON.

$$
FORECASTER...TAYLOR
REQUESTED BY...JOSH WILLIAMS
TYPE OF REQUEST...PRESCRIBED
.TAG 20090325.BLACK.01/OUN