119  
FNUS74 KEPZ 192137  
FWSEPZ  
 
SPOT FORECAST FOR INDIAN PEAKS UT 15 17 RX...GILA NATIONAL FOREST  
NATIONAL WEATHER SERVICE EL PASO TX/SANTA TERESA NM  
337 PM MDT MON APR 19 2021  
 
FORECAST IS BASED ON IGNITION TIME OF 1600 MDT ON APRIL 19.  
 
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE EL PASO  
NATIONAL WEATHER SERVICE FORECAST OFFICE.  
 
...FIRE WEATHER WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH  
WEDNESDAY EVENING...  
   
DISCUSSION
 
 
TEMPERATURES WILL BE WARMING FOR TUESDAY AND WEDNESDAY AND WINDS  
WILL BE INCREASING OUT OF THE WEST TO SOUTHWEST. EXPECT  
TEMPERATURES TO WARM BY ABOUT 5 DEGREES TOMORROW WITH RELATIVE  
HUMIDITIES INTO THE SINGLE DIGITS TUESDAY AS ZONAL FLOW BECOMES  
ESTABLISHED OVER THE REGION. LITTLE CHANGE FOR WEDNESDAY EXCEPT  
WINDS WILL BE APPROACHING CRITICAL SPEEDS WITH JUST A SLIGHT  
INCREASE IN HUMIDITIES. LITTLE CHANGE INTO THE END OF THE WEEK,  
JUST SLIGHTLY LIGHTER WINDS AND TEMPERATURES A FEW DEGREES COOLER.  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT) THEN BECOMING  
MOSTLY SUNNY (15-25 PERCENT).  
CHANCE OF PCPN......10 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....60-65.  
MIN HUMIDITY........15-18 PERCENT.  
WIND (20 FT)........NORTHWEST WINDS 5 TO 10 MPH.  
MIXING HEIGHT.......10100-10900 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 12 TO 13 MPH.  
SMOKE DISPERSAL.....VERY GOOD (137600 KNOT-FT).  
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) 4 PM  
SKY (%).........8  
WEATHER COV.....NONE  
WEATHER TYPE....NONE  
TSTM COV........NONE  
CHC OF PCPN (%).0  
LAL.............1  
TEMP............63  
RH..............16  
20 FT WIND......W 8  
20 FT WIND GUST.13  
MIX HGT (FT)....10900  
TRANSPORT WIND..NW 15  
HAINES INDEX....4  
VRATE KT-FT/1K..138  
VENTRATE CAT....VYGD  
   
TONIGHT
 
 
SKY/WEATHER.........CLEAR (0-10 PERCENT).  
CHANCE OF PCPN......0 PERCENT.  
LAL.................1.  
MIN TEMPERATURE.....29-33.  
MAX HUMIDITY........53-58 PERCENT.  
WIND (20 FT)........NORTHWEST WINDS 3 TO 8 MPH BECOMING LIGHT  
AND TERRAIN DRIVEN.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
 
TIME (MDT) 5 PM 7 PM 9 PM 11 PM 1 AM 3 AM  
SKY (%).........7 5 3 2 1 2  
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............61 53 45 40 37 35  
RH..............16 21 32 40 45 49  
20 FT WIND......NW 8 NW 8 W 7 SW 6 SW 5 SW 4  
20 FT WIND GUST.14 17 14 10 10 10  
HAINES INDEX....4 4 4 4 4 4  
   
TUESDAY
 
 
SKY/WEATHER.........SUNNY (5-15 PERCENT).  
CHANCE OF PCPN......0 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....65-70.  
MIN HUMIDITY........7-9 PERCENT.  
WIND (20 FT)........SOUTHWEST WINDS 7 TO 12 MPH. GUSTS UP TO 24 MPH  
LATE IN THE AFTERNOON.  
MIXING HEIGHT.......0-900 FT AGL INCREASING TO 11700-12700 FT AGL.  
TRANSPORT WINDS.....WEST 20 TO 21 MPH.  
SMOKE DISPERSAL.....FAIR (41100 KNOT-FT) INCREASING TO EXCELLENT  
(230300 KNOT-FT).  
HAINES INDEX........3 TO 6 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH TO OR HIGH POTENTIAL FOR  
LARGE PLUME DOMINATED FIRE GROWTH.  
 
TIME (MDT) 5 AM 8 AM 11 AM 2 PM  
SKY (%).........3 10 3 8  
WEATHER COV.....NONE NONE NONE NONE  
WEATHER TYPE....NONE NONE NONE NONE  
TSTM COV........NONE NONE NONE NONE  
CHC OF PCPN (%).0 0 0 0  
LAL.............1 1 1 1  
TEMP............32 36 59 66  
RH..............52 36 16 10  
20 FT WIND......SW 8G10 W 6G7 W 7G12 W 10G17  
MIX HGT (FT)....BLW100 900 8200 11700  
TRANSPORT WIND..W 8 NW 15 W 18 W 18  
HAINES INDEX....5 4 3 5  
VRATE KT-FT/1K..0 20 108 200  
VENTRATE CAT....POOR POOR VYGD EXNT  
   
FORECAST DAYS 3 THROUGH 5
 
   
WEDNESDAY
 
 
MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS IN THE UPPER 60S.  
SOUTHWEST WINDS AROUND 10 MPH.    
THURSDAY
 
 
CLEAR. LOWS IN THE LOWER 30S. HIGHS IN THE MID 60S. SOUTHWEST  
WINDS AROUND 10 MPH.    
FRIDAY
 
 
MOSTLY CLEAR. LOWS IN THE LOWER 30S. HIGHS IN THE MID 60S. WEST  
WINDS AROUND 9 MPH.  
 

 
FORECASTER...GRZYWACZ  
REQUESTED BY...SILVER CITY INTERAGENCY DISPATCH CENTER  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2109507.2/EPZ  
.DELDT 04/19/21  
.EMAIL NMSDC@FIRENET.GOV  
 
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