604  
FNUS74 KTSA 261300  
FWSTSA  
 
SPOT FORECAST FOR NANIH WAYIA...CHOCTAW NATION OF OKLAHOMA  
NATIONAL WEATHER SERVICE TULSA OK  
800 AM CDT THU OCT 26 2017  
 
FORECAST IS BASED ON IGNITION TIME OF 0900 CDT ON OCTOBER 26.  
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
 
 
WARM TEMPERATURES AND BREEZY SOUTHERLY WINDS ARE EXPECTED ACROSS  
EASTERN OKLAHOMA AND NORTHWEST ARKANSAS THIS AFTERNOON AHEAD OF A  
COLD FRONT APPROACHING FROM THE NORTHWEST. THE FRONT IS FORECAST  
TO MOVE THROUGH THE REGION THURSDAY EVENING WITH GUSTY TO STRONG  
NORTHERLY WINDS AND MUCH COLDER TEMPERATURES PUSHING IN BEHIND THE  
BOUNDARY. LIMITED MOISTURE LOOKS TO KEEP PRECIPITATION CHANCES  
EAST OF THE REGION FRIDAY. FIRE WEATHER DANGERS TODAY INTO FRIDAY  
SHOULD REMAIN LOW FOR MOST LOCATIONS.  
   
TODAY
 
 
SKY/WEATHER.........SUNNY (0-5 PERCENT).  
MAX TEMPERATURE.....AROUND 82.  
MIN HUMIDITY........26 PERCENT.  
DEWPOINT............41 INCREASING TO 44 EARLY IN THE AFTERNOON.  
WIND (20 FT)........SOUTH WINDS AROUND 5 MPH EARLY IN THE MORNING  
BECOMING LIGHT, THEN BECOMING SOUTH 5 TO 10 MPH  
WITH GUSTS TO AROUND 25 MPH EARLY IN THE  
MORNING.  
MIXING HEIGHT.......0-1400 FT AGL INCREASING TO 4600-5900 FT AGL.  
TRANSPORT WINDS.....SOUTH 3 TO 6 MPH INCREASING TO 33 TO 36 MPH.  
SMOKE DISPERSAL.....POOR TO FAIR (300-20000 KNOT-FT).  
STABILITY CLASS.....4.  
1700FT AVG MIX T(F).76 INCREASING TO 81 LATE IN THE AFTERNOON.  
 
TIME (CDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........1 1 1 1 1 1 1 1 3  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
TEMP............51 56 64 70 75 79 81 82 81  
DEWPOINT........41 42 42 43 43 44 44 44 44  
RH..............68 59 45 38 32 29 27 26 27  
20 FT WIND DIR..S S S S S S S S S  
20 FT WIND SPD..7 8 9 10 11 12 12 12 10  
20 FT WIND GUST.15 15 15 20 20 20 25 25 20  
MIX HGT (KFT)...0.8 1.4 2.4 3.6 4.6 5.3 5.8 5.9 5.7  
TRANSP WIND DIR.SW SW SW SW S S S S S  
TRANSP WIND SPD.18 23 28 31 33 36 36 35 35  
VRATE KT-FT/1K..17 17 17 17 20 20 20 20 20  
1700FT MIX T(F).72 72 72 73 75 78 81 82 80  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY (20-30 PERCENT) THEN BECOMING  
MOSTLY CLOUDY (50-60 PERCENT).  
MIN TEMPERATURE.....AROUND 45.  
MAX HUMIDITY........71 PERCENT.  
DEWPOINT............43 DECREASING TO 37 EARLY IN THE MORNING.  
WIND (20 FT)........SOUTH WINDS 5 TO 8 MPH EARLY IN THE EVENING  
BECOMING LIGHT, THEN BECOMING WEST AROUND 5 MPH  
LATE IN THE EVENING SHIFTING TO THE NORTH 7 TO  
14 MPH WITH GUSTS TO AROUND 35 MPH.  
MIXING HEIGHT.......3300-5200 FT AGL DECREASING TO 800-2600 FT AGL  
IN THE LATE EVENING AND OVERNIGHT.  
TRANSPORT WINDS.....SOUTH 23 TO 32 MPH SHIFTING TO THE SOUTHWEST 20  
TO 21 MPH LATE IN THE EVENING, THEN SHIFTING TO  
THE NORTH 21 TO 29 MPH AFTER MIDNIGHT  
INCREASING TO 31 TO 32 MPH EARLY IN THE  
MORNING.  
SMOKE DISPERSAL.....POOR TO FAIR (5300-20000 KNOT-FT).  
STABILITY CLASS.....5.  
1700FT AVG MIX T(F).73 DECREASING TO 53.  
 
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........6 9 17 24 32 39 46 54 54 54 54 55  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
TEMP............79 71 64 60 58 56 54 52 51 50 49 48  
DEWPOINT........45 45 45 44 44 43 43 43 41 39 37 35  
RH..............30 39 50 55 59 62 66 71 68 66 63 60  
20 FT WIND DIR..S S S SW SW W NW N N N N N  
20 FT WIND SPD..9 7 5 3 3 5 8 13 16 17 17 17  
20 FT WIND GUST.15 15 10 5 5 10 15 25 30 30 35 35  
MIX HGT (KFT)...5.2 4.5 3.9 3.3 2.6 1.9 1.3 0.8 0.8 0.9 1.1 0.9  
TRANSP WIND DIR.S S S S S SW NW N N N N N  
TRANSP WIND SPD.32 30 26 23 21 20 21 23 25 29 31 32  
VRATE KT-FT/1K..20 20 20 20 20 20 20 5 5 5 5 5  
1700FT MIX T(F).76 71 66 61 58 60 64 66 64 59 55 52  
   
FRIDAY
 
 
SKY/WEATHER.........PARTLY SUNNY (55-65 PERCENT).  
MAX TEMPERATURE.....AROUND 53.  
MIN HUMIDITY........35 PERCENT.  
DEWPOINT............31 DECREASING TO 27 LATE IN THE MORNING.  
WIND (20 FT)........NORTH WINDS 8 TO 14 MPH. GUSTS UP TO 30 MPH.  
MIXING HEIGHT.......800-2300 FT AGL INCREASING TO 3100-5000 FT AGL  
IN THE LATE MORNING AND AFTERNOON.  
TRANSPORT WINDS.....NORTH 23 TO 32 MPH.  
SMOKE DISPERSAL.....POOR TO FAIR (5300-17900 KNOT-FT).  
STABILITY CLASS.....4.  
1700FT AVG MIX T(F).50.  
 
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........55 55 58 60 63 66 69 71 64 58 51 44  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
TEMP............46 45 45 46 48 49 51 52 52 53 53 53  
DEWPOINT........33 31 30 30 29 28 28 27 27 27 26 26  
RH..............60 58 55 53 47 44 41 38 38 36 35 35  
20 FT WIND DIR..N N N N N N N N N N N NW  
20 FT WIND SPD..17 17 17 16 16 15 14 13 13 12 11 9  
20 FT WIND GUST.30 30 30 30 30 30 25 25 25 20 20 15  
MIX HGT (KFT)...0.8 1.0 1.6 2.3 3.1 3.5 3.9 4.2 4.6 4.9 5.0 5.0  
TRANSP WIND DIR.N N N N N N N N N N N N  
TRANSP WIND SPD.31 31 31 32 32 31 29 26 25 24 23 23  
VRATE KT-FT/1K..5 16 16 16 16 16 16 18 18 18 18 18  
1700FT MIX T(F).49 48 47 47 48 49 51 52 53 53 53 51  
 

 
FORECASTER...SONDAG  
REQUESTED BY...SCOTT HAMLET  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1717925.0/TSA  
.EMAIL SHAMLET@CHOCTAWNATION.COM  
 
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