721  
FNUS74 KOUN 181001  
FWSOUN  
 
SPOT FORECAST FOR DESTRY HORTON OSU FST BURN...FIRE SILL FIRE & EMERGENCY SERVICES  
NATIONAL WEATHER SERVICE NORMAN OK  
401 AM CST SUN FEB 18 2018  
 
FORECAST IS BASED ON IGNITION TIME OF 1300 CST ON FEBRUARY 18.  
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
 
 
LOW STRATUS SHOULD PERSIST THROUGH MUCH OF THE DAY AND THIS WILL LIMIT  
MIXING KEEPING THE WINDS GENERALLY AROUND 15-20 MPH WITH GUSTS UP TO 25.  
IF PARTIAL CLEARING OCCURS DURING THE AFTERNOON, WINDS COULD BE STRONGER.  
THERE IS A SLIGHT CHANCE THAT A SHOWER COULD PASS OVER THE BURN SITE THIS  
AFTERNOON. IF THIS DOES HAPPEN, RAINFALL AMOUNTS WILL BE LIGHT.  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT). A SLIGHT CHANCE  
OF SHOWERS.  
TEMPERATURE.........56 AT IGNITION...MAX 62.  
RH..................72 PERCENT AT IGNITION...MIN 62 PERCENT.  
WIND (20 FT)........WINDS SOUTH AT 14 MPH AT IGNITION...OTHERWISE  
SOUTH WINDS AROUND 15 MPH IN THE AFTERNOON.  
MIXING HEIGHT.......1500 FT AGL AT IGNITION...OTHERWISE 1300-1500  
FT AGL.  
TRANSPORT WINDS.....SOUTH AROUND 15 MPH IN THE AFTERNOON.  
SMOKE DISPERSAL.....FAIR /25500 KNOT-FT/ AT IGNITION. MAX...FAIR  
/25500 KNOT-FT/.  
 
TIME (CST) 1 PM 3 PM 5 PM  
SKY (%).........100 100 74  
WEATHER COV.....S CHC S CHC S CHC  
WEATHER TYPE....RNSHWR RNSHWR RNSHWR  
TSTM COV........  
TEMP............56 62 61  
RH..............72 62 70  
20 FT WIND......S 15 S 15 S 15  
20 FT WIND GUST.19 19 19  
MIX HGT (FT)....1500 1400 1500  
TRANSPORT WIND..S 20 S 22 S 23  
VRATE KTFT/1000.26 23 18  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). A SLIGHT CHANCE  
OF SHOWERS WITH ISOLATED THUNDERSTORMS.  
TEMPERATURE.........MIN 57.  
RH..................MAX 100 PERCENT.  
WIND (20 FT)........SOUTH WINDS 14 TO 15 MPH. GUSTY AND ERRATIC  
WINDS EXPECTED NEAR THUNDERSTORMS.  
MIXING HEIGHT.......600-1500 FT AGL.  
TRANSPORT WINDS.....SOUTH 14 TO 15 MPH.  
SMOKE DISPERSAL.....FAIR TO GOOD (14700-36700 KNOT-FT).  
 
TIME (CST) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM  
SKY (%).........65 79 82 77 76 78  
WEATHER COV.....S CHC S CHC S CHC S CHC S CHC S CHC  
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR  
TSTM COV........ISOLTD ISOLTD ISOLTD ISOLTD ISOLTD ISOLTD  
TEMP............61 60 60 61 60 60  
RH..............72 78 84 90 93 93  
20 FT WIND......S 15 S 15 S 15 S 15 S 14 S 14  
20 FT WIND GUST.19 19 19 19 18 18  
MIX HGT (FT)....900 700 600 700 1200 1500  
TRANSPORT WIND..S 22 S 25 S 28 S 29 S 32 S 33  
VRATE KTFT/1000.16 15 15 18 24 32  
   
WASHINGTONS BIRTHDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). A SLIGHT CHANCE  
OF SHOWERS WITH ISOLATED THUNDERSTORMS IN THE  
MORNING, THEN A CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON.  
TEMPERATURE.........MAX 73.  
RH..................MIN 53 PERCENT.  
WIND (20 FT)........SOUTH WINDS 14 TO 20 MPH. GUSTS UP TO 29 MPH,  
INCREASING TO 31 MPH EARLY IN THE AFTERNOON.  
GUSTY AND ERRATIC WINDS EXPECTED NEAR  
THUNDERSTORMS.  
MIXING HEIGHT.......1500-3000 FT AGL, INCREASING TO 4400-5800 FT  
AGL EARLY IN THE AFTERNOON, THEN INCREASING TO  
4800-6400 FT AGL LATE, DECREASING TO 2500 FT  
AGL LATE.  
TRANSPORT WINDS.....SOUTH 14 TO 20 MPH.  
SMOKE DISPERSAL.....GOOD TO EXCELLENT (34200-82700 KNOT-FT),  
DECREASING TO FAIR (21000 KNOT-FT) LATE.  
 
TIME (CST) 6 AM 9 AM NOON 3 PM  
SKY (%).........85 82 78 74  
WEATHER COV.....S CHC S CHC CHANCE CHANCE  
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR  
TSTM COV........ISOLTD ISOLTD CHANCE CHANCE  
TEMP............57 63 69 73  
RH..............100 84 68 53  
20 FT WIND......S 14G17 S 16G20 S 18G23 S 20G25  
MIX HGT (FT)....1500 1800 3000 6400  
TRANSPORT WIND..S 33 S 33 S 32 SW 33  
VRATE KTFT/1000.42 70 83 49  
 

 
FORECASTER...BROWN  
REQUESTED BY...SCOTT ROBINSON  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1802104.0/OUN  
.EMAIL SCOTT.A.ROBINSON76.CIV@MAIL.MIL  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab OK Page
The Nexlab TX Page Main Text Page