786  
FNUS74 KTSA 172026  
FWSTSA  
 
SPOT FORECAST FOR TUSKAHOMA RX 18 PLANTATION...CHOCTAW NATION FORESTRY  
NATIONAL WEATHER SERVICE TULSA OK  
226 PM CST WED JAN 17 2018  
 
FORECAST IS BASED ON IGNITION TIME OF 1500 CST ON JANUARY 17.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
PLEASE CONTACT NWS TULSA AT (918)838-7838, IF YOU HAVE QUESTIONS  
OR CONCERNS WITH THIS FORECAST.  
   
DISCUSSION
 
 
ARCTIC HIGH PRESSURE WILL SLIDE SOUTHEAST OF THE AREA THURSDAY  
RESULTING IN AN INCREASE IN SOUTH WINDS AND DAYTIME TEMPERATURES  
10-12 DEGREES WARMER THAN TODAY. RH LEVELS WILL ALSO BE 3-5% LOWER  
IN THE AFTERNOON.  
   
TODAY
 
 
SKY/WEATHER.........SUNNY (0-5 PERCENT).  
MAX TEMPERATURE.....AROUND 34.  
MIN HUMIDITY........31 PERCENT.  
DEWPOINT............5 IN THE AFTERNOON.  
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHWEST AROUND 5 MPH  
LATE IN THE AFTERNOON, THEN BECOMING LIGHT LATE  
IN THE AFTERNOON.  
MIXING HEIGHT.......0-1500 FT AGL INCREASING TO 1000-2100 FT AGL  
EARLY IN THE AFTERNOON.  
TRANSPORT WINDS.....NORTHEAST AROUND 2 MPH SHIFTING TO THE SOUTH 1  
TO 5 MPH LATE IN THE MORNING.  
SMOKE DISPERSAL.....POOR (500 KNOT-FT).  
STABILITY CLASS.....4.  
1700FT AVG MIX T(F).24 INCREASING TO 32 EARLY IN THE AFTERNOON.  
 
TIME (CST) 3PM 4PM 5PM  
SKY (%).........1 1 1  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
TEMP............30 31 30  
DEWPOINT........5 5 3  
RH..............35 32 31  
20 FT WIND DIR..SW SW S  
20 FT WIND SPD..4 4 3  
20 FT WIND GUST.10 10 5  
MIX HGT (KFT)...2.1 1.6 1.0  
TRANSP WIND DIR.SW S S  
TRANSP WIND SPD.5 5 5  
VRATE KT-FT/1K..2 2 2  
1700FT MIX T(F).34 34 33  
   
TONIGHT
 
 
SKY/WEATHER.........CLEAR (0-5 PERCENT).  
MIN TEMPERATURE.....AROUND 11.  
MAX HUMIDITY........64 PERCENT.  
DEWPOINT............4 INCREASING TO 6 IN THE LATE EVENING AND  
OVERNIGHT.  
WIND (20 FT)........LIGHT WINDS.  
MIXING HEIGHT.......100-300 FT AGL.  
TRANSPORT WINDS.....SOUTH 2 TO 5 MPH.  
SMOKE DISPERSAL.....POOR (200 KNOT-FT).  
STABILITY CLASS.....6.  
1700FT AVG MIX T(F).31.  
   
THURSDAY
 
 
SKY/WEATHER.........SUNNY (0-5 PERCENT).  
MAX TEMPERATURE.....AROUND 45.  
MIN HUMIDITY........25 PERCENT.  
DEWPOINT............8 INCREASING TO 11 EARLY IN THE AFTERNOON.  
WIND (20 FT)........LIGHT WINDS BECOMING SOUTH 5 TO 8 MPH IN THE  
LATE MORNING AND AFTERNOON.  
MIXING HEIGHT.......1100-2500 FT AGL INCREASING TO 4400 FT AGL LATE  
IN THE MORNING, THEN DECREASING TO 1300-2600 FT  
AGL IN THE AFTERNOON.  
TRANSPORT WINDS.....SOUTH 3 TO 12 MPH INCREASING TO 15 TO 16 MPH IN  
THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (3300 KNOT-FT).  
STABILITY CLASS.....4.  
1700FT AVG MIX T(F).35 INCREASING TO 44 EARLY IN THE AFTERNOON.  
 
TIME (CST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........0 0 0 0 0 0 0 0 0 0 0 1  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
TEMP............15 15 15 20 26 32 37 41 44 45 45 43  
DEWPOINT........6 8 9 10 10 10 9 10 11 12 12 12  
RH..............67 72 77 64 50 38 31 27 25 26 26 28  
20 FT WIND DIR..S S S S S S S S S S S S  
20 FT WIND SPD..4 4 5 6 6 7 7 8 8 8 8 7  
20 FT WIND GUST.5 5 10 10 10 10 10 10 10 10  
MIX HGT (KFT)...1.5 1.2 1.1 1.6 2.5 4.4 1.4 2.0 2.4 2.6 2.1 1.3  
TRANSP WIND DIR.S S S S S S S S S S S S  
TRANSP WIND SPD.3 3 3 5 8 12 15 16 16 16 16 16  
VRATE KT-FT/1K..3 3 3 3 3 3 7 7 7 7 7 7  
1700FT MIX T(F).32 33 34 35 35 35 36 39 43 45 44 43  
 

 
FORECASTER...SULLIVAN  
REQUESTED BY...SAM MCFARLAND  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1800512.0/TSA  
.EMAIL SMCFARLAND@CHOCTAWNATION.COM  
 
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