898  
FNUS74 KSJT 211438  
FWSSJT  
 
SPOT FORECAST FOR BURN BRUSH PILES...STRAUCH RANCH  
NATIONAL WEATHER SERVICE SAN ANGELO TX  
838 AM CST FRI FEB 21 2020  
 
FORECAST IS BASED ON IGNITION TIME OF 0000 CST ON FEBRUARY 21.  
PLEASE CONTACT OUR OFFICE AT 325-944-3030 IF YOU HAVE QUESTIONS  
OR CONCERNS WITH THIS FORECAST.  
   
DISCUSSION
 
 
COOL AND DRY CONDITIONS EXPECTED IN THE BURN AREA TODAY.  
NORTHEASTERLY WINDS THIS MORNING WILL BECOME SOUTHEASTERLY BY  
THIS AFTERNOON. MIN RH VALUES WILL BE BETWEEN 30-40 PERCENT.  
 
   
TODAY
 
 
SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT).  
LAL.................NO TSTMS.  
MAX TEMPERATURE.....AROUND 53.  
MIN HUMIDITY........36 PERCENT.  
WIND (20 FT)........EAST WINDS 5 TO 7 MPH IN THE MORNING BECOMING  
LIGHT, THEN BECOMING SOUTHEAST AROUND 5 MPH  
LATE IN THE AFTERNOON.  
MIXING HEIGHT.......1200-2800 FT AGL INCREASING TO 2800-3200 FT AGL  
LATE IN THE AFTERNOON.  
TRANSPORT WINDS.....SOUTH 7 TO 15 MPH.  
SMOKE DISPERSAL.....FAIR (14400 KNOT-FT).  
HAINES INDEX........3 VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
 
TIME (CST) 6 AM 8 AM 10 AM NOON 2 PM 4 PM  
SKY (%).............55 57 56 53 50 54  
WEATHER COV.........  
WEATHER TYPE........NONE NONE NONE NONE NONE NONE  
TSTM COV............  
LAL.................1 1 1 1 1 1  
TEMP................31 31 38 44 49 53  
RH..................81 81 64 49 42 36  
20 FT WIND DIR......NE NE E E SE SE  
20 FT WIND SPD......7 7 6 5 3 3  
20 FT WIND GUST.....10 10 8 7 6 6  
MIX HGT (FT)........1200 1400 1700 2200 2800 3000  
TRANSPORT WIND.....NE 15 E 13 E 10 SE 8 SE 7 S 7  
HAINES INDEX........3 3 3 3 3 3  
SDSPL KT-FT/1000....16 15 15 15 17 18  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY (55-65 PERCENT) THEN BECOMING  
PARTLY CLOUDY (40-50 PERCENT).  
LAL.................NO TSTMS.  
MIN TEMPERATURE.....AROUND 35.  
MAX HUMIDITY........85 PERCENT.  
WIND (20 FT)........SOUTH WINDS 5 TO 7 MPH.  
MIXING HEIGHT.......1100-2600 FT AGL DECREASING TO 300-400 FT AGL  
IN THE LATE EVENING AND OVERNIGHT.  
TRANSPORT WINDS.....SOUTH 9 TO 17 MPH.  
SMOKE DISPERSAL.....POOR TO FAIR (3600-20900 KNOT-FT).  
HAINES INDEX........2 TO 3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
 
TIME (CST) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM  
SKY (%).............67 54 48 40 45 47  
WEATHER COV.........  
WEATHER TYPE........NONE NONE NONE NONE NONE NONE  
TSTM COV............  
LAL.................1 1 1 1 1 1  
TEMP................53 47 42 40 37 36  
RH..................36 51 62 70 75 79  
20 FT WIND DIR......SE SE S S S S  
20 FT WIND SPD......5 5 6 7 7 7  
20 FT WIND GUST.....7 7 8 10 10 10  
MIX HGT (FT)........2600 1100 400 300 300 300  
TRANSPORT WIND.....S 9 S 10 S 13 S 16 S 17 S 16  
HAINES INDEX........3 3 2 2 2 2  
SDSPL KT-FT/1000....21 10 4 4 4 4  
   
SATURDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT).  
LAL.................NO TSTMS.  
MAX TEMPERATURE.....AROUND 60.  
MIN HUMIDITY........39 PERCENT.  
WIND (20 FT)........SOUTH WINDS 7 TO 14 MPH.  
MIXING HEIGHT.......200-1900 FT AGL INCREASING TO 2300-2700 FT AGL  
IN THE AFTERNOON.  
TRANSPORT WINDS.....SOUTH 16 TO 24 MPH.  
SMOKE DISPERSAL.....POOR TO GOOD (3300-50900 KNOT-FT) INCREASING TO  
GOOD (48300 KNOT-FT) LATE IN THE AFTERNOON.  
HAINES INDEX........2 VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
 
TIME (CST) 6 AM 8 AM 10 AM NOON 2 PM 4 PM  
SKY (%).............49 39 36 37 39 39  
WEATHER COV.........  
WEATHER TYPE........NONE NONE NONE NONE NONE NONE  
TSTM COV............  
LAL.................1 1 1 1 1 1  
TEMP................35 36 45 52 58 60  
RH..................82 82 65 50 42 39  
20 FT WIND DIR......S S S S S S  
20 FT WIND SPD......7 10 12 14 14 13  
20 FT WIND GUST.....10 14 18 20 20 20  
MIX HGT (FT)........200 700 1400 2300 2500 2500  
TRANSPORT WIND.....S 16 S 20 S 23 S 23 S 23 S 24  
HAINES INDEX........2 2 2 2 2 2  
SDSPL KT-FT/1000....3 13 28 46 51 52  
 

 
FORECASTER...WILEY  
REQUESTED BY...PATTI STRAUCH, DVM  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2002616.0/SJT  
.DELDT 02/21/20  
 
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