784  
FNUS74 KOUN 120820  
FWSOUN  
 
SPOT FORECAST FOR HAMMON SEVERITY...CHEYENNE AND ARAPAHO TRIBES  
NATIONAL WEATHER SERVICE NORMAN OK  
320 AM CDT SAT SEP 12 2026  
 
FORECAST IS BASED ON FORECAST START TIME OF 0828 CDT ON SEPTEMBER 12.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
PLEASE CONTACT OUR OFFICE AT (405) 325-3816 IF YOU HAVE QUESTIONS  
OR CONCERNS WITH THIS FORECAST.  
   
DISCUSSION  
 
HOT WEATHER WILL CONTINUE TODAY WITH AFTERNOON TEMPERATURES IN  
LOW 100S AND MINIMUM RELATIVE HUMIDITY AROUND 25%. WINDS WILL BE  
FROM THE SOUTH WITH GUSTS TO 25 MPH.  
 
THERE IS A CHANCE (20% TO 30%) OF SHOWERS AND THUNDERSTORMS THIS  
AFTERNOON AND TONIGHT. IF A THUNDERSTORM WERE TO OCCUR, IT COULD  
BE STRONG TO SEVERE WITH GUSTY, ERRATIC WINDS AND HAIL.  
   
REST OF TODAY  
 
SKY/WEATHER.........SUNNY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS LATE IN THE AFTERNOON.  
MAX TEMPERATURE.....AROUND 102.  
MIN HUMIDITY........24 PERCENT.  
SURFACE WINDS (MPH).SOUTH WINDS 7 TO 16 MPH.  
 
TIME (CDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........23 17 8 7 2 0 4 4 7 13  
WEATHER COV..... SCH SCH  
WEATHER TYPE.... RW RW  
TSTM COV........ SCH SCH  
TEMP............75 80 87 92 95 98 100 101 101 102  
RH..............69 58 46 40 35 32 28 26 24 24  
SURFACE WND DIR.S S S S S S S S S S  
SURFACE WND SPD.7 8 9 12 12 13 14 15 16 16  
SURFACE WND GST.10 13 14 17 17 20 21 23 24 24  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR THEN BECOMING PARTLY CLOUDY EARLY  
IN THE EVENING THEN BECOMING MOSTLY CLEAR.  
SLIGHT CHANCE OF THUNDERSTORMS EARLY IN THE  
EVENING. SLIGHT CHANCE OF SHOWERS IN THE  
EVENING.  
MIN TEMPERATURE.....AROUND 74.  
MAX HUMIDITY........69 PERCENT.  
SURFACE WINDS (MPH).SOUTHEAST WINDS 12 TO 15 MPH SHIFTING TO THE  
EAST OVERNIGHT, THEN SHIFTING TO THE SOUTHEAST  
9 TO 10 MPH OVERNIGHT.  
 
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........16 14 24 29 42 43 30 25 11 21 27 28  
WEATHER COV.....SCH SCH SCH SCH SCH SCH SCH  
WEATHER TYPE....RW RW RW RW RW RW RW  
TSTM COV........SCH SCH SCH SCH  
TEMP............100 98 94 88 85 84 83 82 81 79 77 76  
RH..............24 27 30 38 41 44 48 49 53 56 60 64  
SURFACE WND DIR.SE SE SE SE SE SE E E SE SE SE SE  
SURFACE WND SPD.15 13 12 13 12 12 10 10 10 9 10 9  
SURFACE WND GST.23 20 17 20 17 17 16 16 16 14 16 14  
   
SUNDAY  
 
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING SUNNY.  
MAX TEMPERATURE.....AROUND 101.  
MIN HUMIDITY........24 PERCENT.  
SURFACE WINDS (MPH).SOUTH WINDS 9 TO 17 MPH.  
 
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........44 39 42 32 36 8 8 4 3 3 3 0  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
TEMP............76 74 76 80 87 91 95 97 99 100 101 101  
RH..............64 69 66 58 46 41 35 32 29 27 24 24  
SURFACE WND DIR.S S S S S S S S S S S S  
SURFACE WND SPD.9 9 9 9 12 14 14 15 16 16 17 17  
SURFACE WND GST.14 14 14 14 17 21 21 23 24 24 26 26  
 
 
FORECASTER...MAHALE  
REQUESTED BY...JEFFERY ELIZONDO  
TYPE OF REQUEST...OTHER  
.TAG 2621649.1/OUN  
.DELDT 09/12/26  
.FORMATTERVERSION 2.0.0  
.EMAIL JELIZONDO@C-A-TRIBES.ORG  
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