395  
FNUS74 KEPZ 210137  
FWSEPZ  
 
SPOT FORECAST FOR ST. AUGUSTINE...BLM  
NATIONAL WEATHER SERVICE SANTA TERESA NM/EL PASO TX  
737 PM MDT FRI APR 20 2018  
 
FORECAST IS BASED ON REQUEST TIME OF 2000 MDT ON APRIL 20.  
 
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE EL PASO  
NATIONAL WEATHER SERVICE FORECAST OFFICE.  
   
..RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT THIS EVENING
 
 
   
DISCUSSION
 
   
FIRE WEATHER
 
 
RED FLAG CONDITIONS WILL PREVAIL IN THE LOWLANDS INTO THE  
EVENING. FOR SATURDAY NORTHWESTERLY WINDS WILL BRING DRY  
CONDITIONS BUT WIND SPEEDS WILL REMAIN BELOW CRITICAL LEVELS.  
A WEAK COLD FRONT WILL ALSO BRING SLIGHTLY COOLER TEMPERATURES  
ON SUNDAY WITH POSSIBLE GUSTY EAST WINDS ESPECIALLY ALONG  
WESTERN SLOPES.  
   
REST OF TONIGHT
 
 
SKY/WEATHER.........CLEAR (0-10 PERCENT).  
CHANCE OF PCPN......0 PERCENT.  
LAL.................1.  
MIN TEMPERATURE.....AROUND 47.  
MAX HUMIDITY........35 PERCENT.  
WIND (20 FT)........NORTHWEST WINDS 15 TO 25 MPH. GUSTS UP TO 35  
MPH.  
MIXING HEIGHT.......4000 FT AGL DECREASING TO 0 FT AGL AFTER  
MIDNIGHT.  
TRANSPORT WINDS.....NORTHWEST 15 TO 25 MPH.  
SMOKE DISPERSAL.....GOOD (100000 KNOT-FT) DECREASING TO POOR  
AFTER MIDNIGHT.  
HAINES INDEX........2 TO 5 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH TO OR MODERATE POTENTIAL  
FOR LARGE PLUME DOMINATED FIRE GROWTH.  
 
TIME (MDT) 8 PM 10 PM MIDNGT 2 AM 4 AM  
SKY (%).........3 3 7 7 7  
WEATHER COV.....NONE NONE NONE NONE NONE  
WEATHER TYPE....NONE NONE NONE NONE NONE  
TSTM COV........NONE NONE NONE NONE NONE  
CHC OF PCPN (%).0 0 0 0 0  
LAL.............1 1 1 1 1  
TEMP............56 54 52 50 48  
RH..............20 24 27 30 33  
20 FT WIND......W 20 W 17 W 17 NW 16 NW 14  
20 FT WIND GUST.30 30 30 30 25  
MIX HGT (FT)....2200 2200 BLW100 BLW100 BLW100  
TRANSPORT WIND..W 16 W 9 W 10 W 9 NW 8  
HAINES INDEX....5 4 3 2 3  
VENT RATE.......FAIR FAIR POOR POOR POOR  
   
SATURDAY
 
 
SKY/WEATHER.........SUNNY (0-10 PERCENT).  
CHANCE OF PCPN......0 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....AROUND 70.  
MIN HUMIDITY........15 PERCENT.  
WIND (20 FT)........NORTHWEST WINDS 7 TO 12 MPH. GUSTS UP TO 25 MPH  
EARLY IN THE MORNING.  
MIXING HEIGHT.......4200 FT AGL INCREASING TO 9900 FT AGL IN THE  
AFTERNOON.  
TRANSPORT WINDS.....NORTHWEST 15 TO 16 MPH.  
SMOKE DISPERSAL.....FAIR (42100 KNOT-FT) INCREASING TO VERY GOOD  
(132200 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........2 TO 4 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH TO OR LOW POTENTIAL FOR  
LARGE PLUME DOMINATED FIRE GROWTH.  
 
TIME (MDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM  
SKY (%).........1 1 1 7 7 7  
WEATHER COV.....NONE NONE NONE NONE NONE NONE  
WEATHER TYPE....NONE NONE NONE NONE NONE NONE  
TSTM COV........NONE NONE NONE NONE NONE NONE  
CHC OF PCPN (%).0 0 0 0 0 0  
LAL.............1 1 1 1 1 1  
TEMP............48 51 55 60 65 70  
RH..............34 30 26 22 18 15  
20 FT WIND......N 12 N 8 N 7 NW 7 NW 8 NW 9  
20 FT WIND GUST.25 15 15 15 15 15  
MIX HGT (FT)....4200 4200 4200 9900 9900 9900  
TRANSPORT WIND..NW 7 N 10 N 12 NW 13 NW 16 NW 16  
HAINES INDEX....4 3 2 2 2 2  
VENT RATE.......FAIR FAIR FAIR VYGD VYGD VYGD  
 

 
FORECASTER...ROGASH  
REQUESTED BY...USDA  
TYPE OF REQUEST...WILDFIRE  
.TAG 1807229.0/EPZ  
.EMAIL NMSDC@FS.FED.US  
 
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