601  
FNUS74 KOUN 162016  
FWSOUN  
 
SPOT FORECAST FOR GRACEMONT...USWFS  
NATIONAL WEATHER SERVICE NORMAN OK  
316 PM CDT WED SEP 16 2026  
 
FORECAST IS BASED ON FORECAST START TIME OF 1700 CDT ON SEPTEMBER 16.  
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  
 
THERE IS A VERY LOW CHANCE (10%) FOR AN ISOLATED STORM TO DEVELOP THIS  
AFTERNOON BEFORE SUNSET. IF IT DOES, ERRATIC AND GUSTY WINDS WOULD  
BE EXPECTED NEAR THE STORM.  
 
OTHERWISE, BREEZY SOUTH WINDS (10 TO 15 MPH, GUSTING TO 20 MPH) WILL  
CONTINUE FOR A FEW MORE HOURS BEFORE DROPPING OFF AND BACKING TO SOUTH  
SOUTHEASTERLY WITH THE SETTING SUN. RH HAS BOTTOMED OUT AROUND  
25 PERCENT. OVERNIGHT RECOVERY TO AROUND 70 PERCENT IS EXPECTED.  
 
THURSDAY'S CONDITIONS WILL BE SLIGHTLY MODERATED WITH SOUTHERLY  
WINDS AT 8 TO 12 MPH GUSTING TO 18 MPH AND MINIMUM RH VALUES  
AROUND 30 PERCENT.  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR THEN BECOMING CLEAR IN THE LATE  
EVENING AND OVERNIGHT. SLIGHT CHANCE OF SHOWERS  
AND THUNDERSTORMS EARLY IN THE EVENING.  
MIN TEMPERATURE.....AROUND 74.  
MAX HUMIDITY........73 PERCENT.  
WIND (20 FT)........SOUTH WINDS 6 TO 10 MPH. GUSTY AND ERRATIC  
WINDS EXPECTED NEAR THUNDERSTORMS EARLY IN THE  
EVENING.  
MIXING HEIGHT.......500 FT AGL.  
TRANSPORT WINDS.....SOUTH 12 TO 17 MPH.  
SMOKE DISPERSAL.....POOR TO EXCELLENT (5100-104400 KNOT-FT).  
 
TIME (CDT) 6 PM 10 PM 2 AM  
SKY (%).........19 3 1  
WEATHER COV.....S CHC  
WEATHER TYPE....RNSHWR NONE NONE  
TSTM COV........S CHC  
TEMP............98 86 81  
RH..............28 44 57  
20 FT WIND DIR..S SE S  
20 FT WIND SPD..10 9 8  
20 FT WIND GUST.17 16 14  
MIX HGT (FT)....8700 500 500  
TRANSPORT WIND..S 14 S 15 S 15  
VRATE KTFT/1000.104 6 6  
   
THURSDAY  
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....AROUND 99.  
MIN HUMIDITY........31 PERCENT.  
WIND (20 FT)........SOUTH WINDS 6 TO 9 MPH.  
MIXING HEIGHT.......8500 FT AGL.  
TRANSPORT WINDS.....SOUTH 9 TO 15 MPH.  
SMOKE DISPERSAL.....POOR TO EXCELLENT (4200-76400 KNOT-FT).  
 
TIME (CDT) 6 AM 9 AM NOON 3 PM  
SKY (%).........2 4 2 13  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE  
TSTM COV........  
TEMP............76 80 94 97  
RH..............68 62 40 33  
20 FT WIND DIR..S S S S  
20 FT WIND SPD..7 7 9 8  
20 FT WIND GUST.13 13 16 14  
MIX HGT (FT)....500 1200 6800 8400  
TRANSPORT WIND..S 13 S 15 S 12 S 10  
VRATE KTFT/1000.5 16 68 76  
 
 
FORECASTER...DAY  
REQUESTED BY...JAMES ATKINS  
TYPE OF REQUEST...WILDFIRE  
.TAG 2622022.0/OUN  
.DELDT 09/16/26  
.FORMATTERVERSION 2.0.0  
.EMAIL JAMES.ATKINS@USDA.GOV  
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