942  
FNUS74 KOUN 211358  
FWSOUN  
 
SPOT FORECAST FOR AMY THLOCCO RX...BIA/EASTERN OKLAHOMA REGION  
NATIONAL WEATHER SERVICE NORMAN OK  
758 AM CST FRI FEB 21 2020  
 
FORECAST IS BASED ON IGNITION TIME OF 0000 CST ON FEBRUARY 21.  
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
 
 
LIGHT AND VARIABLE WINDS THIS MORNING BECOMING LIGHT SOUTHERLY DURING THE  
AFTERNOON.  
   
TODAY
 
 
SKY/WEATHER.........SUNNY (0-5 PERCENT).  
MAX TEMPERATURE.....AROUND 47.  
MIN HUMIDITY........26 PERCENT.  
WIND (20 FT)........LIGHT WINDS BECOMING SOUTH AROUND 5 MPH LATE IN  
THE AFTERNOON.  
MIXING HEIGHT.......3300 FT AGL.  
TRANSPORT WINDS.....EAST 3 TO 7 MPH SHIFTING TO THE SOUTH 2 TO 7  
MPH LATE IN THE MORNING.  
SMOKE DISPERSAL.....POOR (1400 KNOT-FT).  
 
TIME (CST) 6 AM 8 AM 10 AM NOON 2 PM 4 PM  
SKY (%).........0 0 0 1 1 3  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE NONE NONE  
TSTM COV........  
TEMP............25 27 33 40 45 47  
RH..............74 65 49 34 28 26  
20 FT WIND DIR..N N NE SE SW S  
20 FT WIND SPD..3 2 1 1 2 2  
20 FT WIND GUST.4  
MIX HGT (FT)....400 1000 1800 2500 3300 2300  
TRANSPORT WIND..NE 7 NE 6 E 3 SW 2 SW 5 S 6  
VRATE KTFT/1000.3 4 5 5 4 2  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT).  
MIN TEMPERATURE.....AROUND 32.  
MAX HUMIDITY........75 PERCENT.  
WIND (20 FT)........LIGHT WINDS BECOMING SOUTH 5 TO 6 MPH.  
MIXING HEIGHT.......0 FT AGL.  
TRANSPORT WINDS.....SOUTH 7 TO 12 MPH.  
SMOKE DISPERSAL.....POOR (0 KNOT-FT).  
 
TIME (CST) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM  
SKY (%).........9 9 16 14 17 21  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE NONE NONE  
TSTM COV........  
TEMP............43 37 35 35 34 34  
RH..............33 44 52 54 64 69  
20 FT WIND DIR..S S S S S S  
20 FT WIND SPD..3 5 5 5 6 6  
20 FT WIND GUST.4 6 6 6 7 7  
MIX HGT (FT)....100 BLW100 100 100 100 100  
TRANSPORT WIND..S 7 S 8 S 9 S 9 S 10 S 10  
VRATE KTFT/1000.1 0 1 1 0 0  
   
SATURDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT).  
MAX TEMPERATURE.....AROUND 55.  
MIN HUMIDITY........47 PERCENT.  
WIND (20 FT)........SOUTH WINDS 7 TO 12 MPH.  
MIXING HEIGHT.......3300 FT AGL.  
TRANSPORT WINDS.....SOUTH 13 TO 22 MPH INCREASING TO 22 TO 24 MPH  
LATE IN THE MORNING.  
SMOKE DISPERSAL.....POOR (1700 KNOT-FT) EARLY IN THE MORNING  
INCREASING TO GOOD (43400 KNOT-FT) IN THE  
AFTERNOON.  
 
TIME (CST) 6 AM 9 AM NOON 3 PM  
SKY (%).........27 50 42 42  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE  
TSTM COV........  
TEMP............34 39 50 55  
RH..............75 70 54 47  
20 FT WIND DIR..S S S S  
20 FT WIND SPD..7 9 10 12  
20 FT WIND GUST.10 12 13 14  
MIX HGT (FT)....200 700 2200 3300  
TRANSPORT WIND..S 13 S 21 S 23 S 24  
VRATE KTFT/1000.2 25 43 29  
 

 
FORECASTER...THOREN  
REQUESTED BY...JOSH WILLIAMS  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2002568.1/OUN  
.DELDT 02/21/20  
.FORMATTERVERSION 1.0.26  
.EMAIL JOSHUAD.WILLIAMS@BIA.GOV  
 
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