020  
FNUS74 KMAF 141007  
FWSMAF  
 
SPOT FORECAST FOR SOUTH RIM 4 -WED 0600...NATIONAL PARK SERVICE  
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX  
507 AM CDT WED APR 14 2021  
 
FORECAST IS BASED ON FORECAST START TIME OF 0800 CDT ON APRIL 14.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
 
MINIMUM RH WILL REMAIN ABOVE CRITICAL LEVELS TODAY UNDER MOSTLY  
CLEAR SKIES, WITH UPCANYON WINDS DEVELOPING EARLY. RECOVERY  
OVERNIGHT WILL BE EXCELLENT.  
   
REST OF TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT).  
LAL.................NO TSTMS.  
MAX TEMPERATURE.....AROUND 77.  
MIN HUMIDITY........24 PERCENT.  
WIND (20 FT)........UPSLOPE/UPCANYON 5 TO 10 MPH.  
MIXING HEIGHT.......8300 FT AGL.  
TRANSPORT WINDS.....EAST AROUND 2 MPH SHIFTING TO THE SOUTHWEST IN  
THE AFTERNOON.  
HAINES INDEX........3 TO 5 OR VERY LOW TO MODERATE POTENTIAL FOR  
LARGE PLUME DOMINATED FIRE GROWTH.  
CHANCE OF PCPN......0 PERCENT.  
 
TIME (CDT) 8 AM 10 AM NOON 2 PM 4 PM  
SKY COVER.......PCLDY PCLDY PCLDY MCLEAR MCLEAR  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE NONE  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0  
LAL.............1 1 1 1 1  
TEMP............49 55 65 70 76  
RH..............96 80 56 41 27  
20 FT WIND DIR..TD TD TD TD TD  
20 FT WIND SPD..10 9 9 9 9  
20 FT WIND GUST.  
MIX HGT (FT)....500 1500 2800 5400 8200  
TRANSP WIND DIR.NE E S S SW  
TRANSP WIND SPD.2 1 3 6 8  
HAINES INDEX....4 5 5 5 3  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY (20-30 PERCENT).  
LAL.................NO TSTMS.  
MIN TEMPERATURE.....AROUND 53.  
MAX HUMIDITY........93 PERCENT.  
WIND (20 FT)........SOUTHEAST WINDS 6 TO 11 MPH.  
MIXING HEIGHT.......0 FT AGL.  
TRANSPORT WINDS.....NORTHWEST AROUND 6 MPH BECOMING TERRAIN DRIVEN IN  
THE LATE EVENING AND OVERNIGHT.  
HAINES INDEX........3 TO 5 OR VERY LOW TO MODERATE POTENTIAL FOR  
LARGE PLUME DOMINATED FIRE GROWTH.  
CHANCE OF PCPN......10 PERCENT.  
 
TIME (CDT) 6 PM 9 PM MIDNGT 3 AM  
SKY COVER.......MCLEAR MCLEAR MCLEAR PCLDY  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE  
TSTM COV........  
CHC OF PCPN (%).0 0 0 10  
LAL.............1 1 1 1  
TEMP............76 63 58 54  
RH..............24 43 67 90  
20 FT WIND DIR..E E E SE  
20 FT WIND SPD..9 10 11 11  
20 FT WIND GUST.  
MIX HGT (FT)....7600 1900 BLW100 300  
TRANSP WIND DIR.W N TD TD  
TRANSP WIND SPD.6 6 9 6  
HAINES INDEX....3 4 5 5  
 

 
 
FORECASTER...DEBERRY  
REQUESTED BY...DW IVANS  
TYPE OF REQUEST...WILDFIRE  
.TAG 2108949.1/MAF  
.DELDT 04/14/21  
.FORMATTERVERSION 1.0.26  
 
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