820  
FNUS74 KMAF 180251  
FWSMAF  
 
SPOT FORECAST FOR SOLAR FARM NORTH...USFWS  
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX  
851 PM CST THU JAN 17 2019  
 
FORECAST IS BASED ON IGNITION TIME OF 1400 CST ON JANUARY 18.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
..WIND ADVISORY IN EFFECT FRIDAY FOR MOST OF WEST TEXAS
 
 
   
DISCUSSION
 
 
A STRONG UPPER TROUGH SWINGING ACROSS THE SOUTH PLAINS FRIDAY WILL SPIN UP  
A DEEP SURFACE LOW THAT WILL PRODUCE WINDY CONDITIONS ACROSS THE FIRE SITE.  
20FT WINDS OUT OF THE WEST AT 20 TO 30 MPH WITH GUSTS TO 45 MPH EXPECTED  
ALONG WITH BLOWING DUST. A STRONG COLD FRONT WILL SWEEP THROUGH THE AREA  
FRIDAY NIGHT WITH A GUSTY WIND SHIFTING TO THE NORTH. MINIMUM RH EXPECTED  
IN THE MID 20 PERCENT RANGE WITH GOOD RECOVERY AT NIGHT. COLDER CONDITIONS  
SATURDAY WITH LOWER WIND AND HIGH RH.  
   
FRIDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (15-25 PERCENT). WINDY, AREAS OF BLOWING DUST.  
LAL.................NO TSTMS.  
MAX TEMPERATURE.....AROUND 71.  
MIN HUMIDITY........24 PERCENT.  
WIND (20 FT)........WINDY. WEST WINDS 21 TO 31 MPH.  
MIXING HEIGHT.......9600-10300 FT AGL DECREASING TO 3700 FT AGL.  
TRANSPORT WINDS.....WEST AROUND 47 MPH.  
SMOKE DISPERSAL.....EXCELLENT (357000 KNOT-FT) DECREASING TO  
EXCELLENT (151000 KNOT-FT).  
HAINES INDEX........2 TO 3 OR VERY LOW.  
 
TIME (CST) 2 PM 5 PM  
SKY COVER.......MCLEAR MCLEAR  
WEATHER COV.....AREAS AREAS  
WEATHER TYPE....BLDUST BLDUST  
TSTM COV........  
LAL.............1 1  
TEMP............71 66  
RH..............29 27  
20 FT WIND DIR..W W  
20 FT WIND SPD..31 30  
20 FT WIND GUST.44 40  
MIX HGT (FT)....9600 3700  
TRANSP WIND DIR.W W  
TRANSP WIND SPD.43 47  
HAINES INDEX....3 2  
VRATE KT-FT/1000357 151  
   
FRIDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT). PATCHY BLOWING  
DUST EARLY IN THE EVENING.  
LAL.................NO TSTMS.  
MIN TEMPERATURE.....AROUND 34.  
MAX HUMIDITY........69 PERCENT.  
WIND (20 FT)........BREEZY. NORTH WINDS 14 TO 19 MPH.  
MIXING HEIGHT.......0-300 FT AGL.  
TRANSPORT WINDS.....WEST AROUND 47 MPH DECREASING TO AROUND 22 MPH  
EARLY IN THE EVENING, THEN INCREASING TO NORTH  
AROUND 33 MPH IN THE LATE EVENING AND  
OVERNIGHT.  
SMOKE DISPERSAL.....POOR (11000 KNOT-FT) DECREASING TO POOR (0  
KNOT-FT) EARLY IN THE EVENING, THEN INCREASING  
TO POOR (6000 KNOT-FT) IN THE LATE EVENING AND  
OVERNIGHT.  
HAINES INDEX........2 TO 3 OR VERY LOW.  
 
TIME (CST) 6 PM 9 PM MIDNGT 3 AM  
SKY COVER.......MCLEAR MCLEAR MCLEAR MCLEAR  
WEATHER COV.....PATCHY  
WEATHER TYPE....BLDUST NONE NONE NONE  
TSTM COV........  
LAL.............1 1 1 1  
TEMP............60 49 42 38  
RH..............25 40 65 67  
20 FT WIND DIR..W NW NW N  
20 FT WIND SPD..25 19 20 18  
20 FT WIND GUST.36 28 32 27  
MIX HGT (FT)....300 300 300 300  
TRANSP WIND DIR.W NW N N  
TRANSP WIND SPD.47 39 36 36  
HAINES INDEX....2 3 3 3  
VRATE KT-FT/100011 11 9 11  
   
SATURDAY
 
 
SKY/WEATHER.........SUNNY (0-5 PERCENT).  
LAL.................NO TSTMS.  
MAX TEMPERATURE.....AROUND 53.  
MIN HUMIDITY........31 PERCENT.  
WIND (20 FT)........NORTH WINDS 11 TO 16 MPH.  
MIXING HEIGHT.......100-1500 FT AGL INCREASING TO 2800-4100 FT AGL  
LATE IN THE MORNING, THEN INCREASING TO  
4100-5800 FT AGL LATE IN THE AFTERNOON  
DECREASING TO 1900 FT AGL LATE IN THE  
AFTERNOON.  
TRANSPORT WINDS.....NORTHWEST AROUND 16 MPH.  
SMOKE DISPERSAL.....POOR (2000 KNOT-FT) INCREASING TO GOOD (31000  
KNOT-FT) LATE IN THE MORNING, THEN INCREASING  
TO GOOD (54000 KNOT-FT) LATE IN THE MORNING  
INCREASING TO EXCELLENT (74000 KNOT-FT) EARLY  
IN THE AFTERNOON DECREASING TO GOOD (53000  
KNOT-FT) DECREASING TO FAIR (21000 KNOT-FT)  
LATE IN THE AFTERNOON.  
HAINES INDEX........3 TO 4 OR VERY LOW TO LOW.  
 
TIME (CST) 6 AM 9 AM NOON 3 PM  
SKY COVER.......CLEAR CLEAR CLEAR CLEAR  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE  
TSTM COV........  
LAL.............1 1 1 1  
TEMP............35 36 47 53  
RH..............66 64 42 31  
20 FT WIND DIR..N N N NW  
20 FT WIND SPD..19 17 19 18  
20 FT WIND GUST.24 20 25 22  
MIX HGT (FT)....200 400 4100 5600  
TRANSP WIND DIR.N N N NW  
TRANSP WIND SPD.28 25 21 18  
HAINES INDEX....3 3 3 4  
VRATE KT-FT/10005 10 74 90  
 

 
FORECASTER...CAIN  
REQUESTED BY...DUANE LUCIA  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1900281.4/MAF  
.DELDT 01/17/19  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab TX Page
The Nexlab NM Page Main Text Page