FNUS74 KOUN 201443
FWSOUN

SPOT FORECAST FOR NPS CHIC ERC BURN...NPS
NATIONAL WEATHER SERVICE NORMAN OK
843 AM CST SUN FEB 20 2011

FORECAST IS BASED ON IGNITION TIME OF 1030 CST ON FEBRUARY 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
GUSTY SOUTH WIND AND HIGH HUMIDITY WILL BE SEEN THROUGH EARLY AFTERNOON
WITH SOME CLEARING EXPECTED IN THE AFTERNOON. WINDS WILL BEGIN TO SHIFT
TO A MORE SOUTHWESTERLY DIRECTION THIS AFTERNOON BUT DRY LINE FORECAST
TO STAY WELL WEST OF BURN SITE...KEEPING HUMIDITIES UP IN IN THE 45 TO
55 PERCENT RANGE. WINDS WILL GO WESTERLY OVERNIGHT AHEAD OF COLD FRONT
WHICH WILL SHIFT WINDS TO THE NORTH MONDAY MORNING.

.TODAY...

SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). AREAS OF DRIZZLE EARLY
                    IN THE MORNING. AREAS OF FOG EARLY IN THE
                    MORNING...THEN PATCHY FOG LATE IN THE MORNING.
MAX TEMPERATURE.....AROUND 72.
MIN HUMIDITY........53 PERCENT.
20-FOOT WINDS.......SOUTH WINDS 15 TO 18 MPH.
MIXING HEIGHT.......1900-3500 FT AGL.
TRANSPORT WINDS.....SOUTH 22 TO 25 MPH.

TIME (CST)      10 AM  NOON   2 PM   4 PM   6 PM   8 PM
SKY (%).........MCLDY  MCLDY  MCLDY  PCLDY  PCLDY  PCLDY
WEATHER COV.....PATCHY                      S CHC  S CHC
WEATHER TYPE....FOG    NONE   NONE   NONE   RNSHWR RNSHWR
TEMP............64     70     71     71     69     60
RH..............81     66     61     55     53     75
20 FT WIND......S 17   S 18   S 17   S 17   S 16   S 15
20 FT WIND GUST.20     20     25     25     20
MIX HGT (FT)....2100   2600   3300   3300   2400   1600
MIX HGT (M).....640    790    1010   1010   730    490
TRANSPORT WIND..S 24   SW 24  S 23   S 22   S 22   S 21
TRAN WIND (M/S).S 11   SW 11  S 10   S 10   S 10   S 9

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT). SLIGHT CHANCE OF
                    SHOWERS AND THUNDERSTORMS IN THE EVENING.
MIN TEMPERATURE.....AROUND 47.
MAX HUMIDITY........100 PERCENT.
20-FOOT WINDS.......SOUTH WINDS 8 TO 16 MPH DECREASING TO 5 TO 6
                    MPH AFTER MIDNIGHT...THEN BECOMING LIGHT AFTER
                    MIDNIGHT. GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS IN THE EVENING.
MIXING HEIGHT.......1300-2400 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 15 TO 22 MPH SHIFTING TO THE WEST
                    AROUND 12 MPH EARLY IN THE MORNING.

.WASHINGTONS BIRTHDAY...

SKY/WEATHER.........PARTLY SUNNY (60-70 PERCENT).
MAX TEMPERATURE.....AROUND 56.
MIN HUMIDITY........32 PERCENT.
20-FOOT WINDS.......NORTH WINDS 5 TO 13 MPH INCREASING TO 7 TO 16
                    MPH IN THE LATE MORNING AND AFTERNOON.
MIXING HEIGHT.......1400-3300 FT AGL.
TRANSPORT WINDS.....NORTHWEST 10 TO 16 MPH SHIFTING TO THE NORTH 15
                    TO 20 MPH IN THE LATE MORNING AND AFTERNOON.

$$
FORECASTER...BROWN
REQUESTED BY...TRAVIS JONES
TYPE OF REQUEST...PRESCRIBED
.TAG 20110220.NPSCH.01/OUN