305  
FNUS74 KTSA 210813  
FWSTSA  
 
SPOT FORECAST FOR CREEK NATION FESTIVAL...LINCOLN COUNTY EMERGENCY MANAGEMENT  
NATIONAL WEATHER SERVICE TULSA OK  
313 AM CDT THU JUN 21 2018  
 
FORECAST IS BASED ON INCIDENT TIME OF 0900 CDT ON JUNE 21.  
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
 
 
MOSTLY CLEAR SKIES ARE EXPECTED THURSDAY INTO FRIDAY AS HIGH PRESSURE BUILDS  
BEHIND A COLD FRONT MOVING THROUGH THE REGION TODAY. CHANCES OF THUNDERSTORMS  
RETURN LATE FRIDAY EVENING INTO SATURDAY MORNING AS A THUNDERSTORM COMPLEX  
MOVES INTO THE REGION FROM THE NORTHWEST. SOME OF THESE STORMS COULD BE  
STRONG TO SEVERE WITH DAMAGING WINDS THE MAIN CONCERN. ADDITIONAL THUNDERSTORMS  
ARE POSSIBLE ON SATURDAY IN THE VICINITY OF A FRONTAL BOUNDARY. THESE STORMS WILL  
ALSO HAVE THE POTENTIAL TO BE SEVERE WITH DAMAGING WINDS, LARGE HAIL AND TORNADOES  
ALL POSSIBLE.  
 
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT).  
CHANCE OF PCPN......10 PERCENT.  
BEGIN/END OF PCPN...  
MAX TEMPERATURE.....AROUND 89.  
MIN HUMIDITY........44 PERCENT.  
DEWPOINT............66.  
APPARENT TEMP.......90.  
SURFACE WINDS.......LIGHT WINDS BECOMING NORTHWEST 5 TO 9 MPH IN  
THE LATE MORNING AND AFTERNOON.  
WIND SHIFT..........  
 
TIME (CDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........32 32 32 32 14 14 14 14 16  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CHC OF PCPN (%).10 10 10 10 10 10 10 10 10  
TEMP............73 77 80 83 85 86 88 89 89  
DEWPOINT........68 68 67 67 66 65 65 64 64  
RH..............84 74 65 59 53 50 47 44 44  
APARNT TMP (F)..73 77 82 86 87 88 90 90 90  
SURFACE WND DIR.NW NW NW NW NW NW NW NW NW  
SURFACE WND SPD.5 6 6 6 7 8 9 9 8  
SURFACE WND GST.10 10 10 10 15 15 15 15 15  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY (20-30 PERCENT).  
CHANCE OF PCPN......10 PERCENT.  
BEGIN/END OF PCPN...  
MIN TEMPERATURE.....AROUND 65.  
MAX HUMIDITY........84 PERCENT.  
DEWPOINT............63.  
APPARENT TEMP.......89.  
SURFACE WINDS.......NORTHWEST WINDS 5 TO 7 MPH EARLY IN THE EVENING  
BECOMING LIGHT.  
WIND SHIFT..........  
 
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........20 22 22 22 22 22 22 34 34 34 34 34  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CHC OF PCPN (%).10 10 10 10 10 10 10 10 10 10 10 10  
TEMP............88 86 83 78 75 73 72 70 69 68 67 66  
DEWPOINT........63 63 64 64 65 64 63 62 62 61 61 61  
RH..............43 46 53 62 71 73 73 76 78 78 81 84  
APARNT TMP (F)..89 87 84 78 75 73 72 70 69 68 67 66  
SURFACE WND DIR.W W NW NW NW NW NW N NW NW NW NW  
SURFACE WND SPD.7 6 6 5 4 3 3 3 3 3 3 3  
SURFACE WND GST.15 10 10 10 5 5 5 5 5 5 5 5  
   
FRIDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT).  
CHANCE OF PCPN......10 PERCENT.  
BEGIN/END OF PCPN...  
MAX TEMPERATURE.....AROUND 86.  
MIN HUMIDITY........50 PERCENT.  
DEWPOINT............63.  
APPARENT TEMP.......88.  
SURFACE WINDS.......LIGHT WINDS BECOMING NORTHWEST 5 TO 6 MPH IN  
THE LATE MORNING AND AFTERNOON, THEN BECOMING  
LIGHT LATE IN THE AFTERNOON.  
WIND SHIFT..........  
 
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........34 47 47 47 47 47 47 37 37 37 37 37  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CHC OF PCPN (%).10 10 10 10 10 10 10 10 10 10 10 10  
TEMP............65 65 68 72 75 78 80 82 84 85 86 86  
DEWPOINT........61 61 62 62 63 63 64 64 64 65 65 65  
RH..............87 87 81 71 66 60 58 55 51 51 50 50  
APARNT TMP (F)..65 65 68 72 75 78 82 83 85 87 88 88  
SURFACE WND DIR.NW NW NW NW N NW NW NW NW NW NW NW  
SURFACE WND SPD.4 4 4 5 5 5 6 6 6 6 5 4  
SURFACE WND GST.5 5 5 10 10 10 10 10 10 10 10 5  
 

 
FORECASTER...SONDAG  
REQUESTED BY...NICK SAMPSON  
TYPE OF REQUEST...OTHER  
.TAG 1811422.0/TSA  
.EMAIL LINCOLNCO.EM3@GMAIL.COM  
 
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