628  
FNUS54 KMAF 240839  
FWFMAF  
 
FIRE WEATHER PLANNING FORECAST FOR WEST TEXAS/SOUTHEAST NEW MEXICO  
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX  
339 AM CDT SUN SEP 24 2017  
   
DISCUSSION
 
 
APPROACHING UPPER TROUGH WILL RESULT IN GOOD CHANCE OF SHOWERS AND  
THUNDERSTORMS EACH DAY THROUGH THE COMING WEEK. SOME AREAS HAVE ALREADY  
HAD HEAVY RAIN OVERNIGHT WITH MORE EXPECTED TODAY. MINIMUM AFTERNOON RH  
TODAY WILL BE 35 PERCENT OR HIGHER FOR THE WEST AND 50 PERCENT OR MORE  
FOR THE EAST. EXCELLENT RH RECOVERY OVERNIGHT. A COLD FRONT WILL MOVE  
THROUGH THE AREA TUESDAY BRINGING LOWER TEMPERATURES AND EVEN HIGHER RH.  
 

 
 
FOR POINT-SPECIFIC FORECASTS PLEASE SEE THE POINT FIRE WEATHER MATRIX  
PRODUCT ISSUED BY THE MIDLAND/ODESSA NATIONAL WEATHER SERVICE OFFICE.  
 
NMZ114-TXZ258-250845-  
GUADALUPE MOUNTAINS-  
INCLUDING THE CITIES OF GUADALUPE MOUNTAINS NP AND PINE SPRINGS  
239 AM MDT SUN SEP 24 2017  
   
TODAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT). SLIGHT CHANCE  
OF SHOWERS AND THUNDERSTORMS.  
* MAX TEMPERATURE.....IN THE MID 70S ABOVE 6000 FEET...IN THE UPPER  
70S BELOW 6000 FEET.  
* 24 HR TREND......3 DEGREES WARMER.  
* MIN HUMIDITY........35-45 PERCENT.  
* 24 HR TREND......18 PERCENT DRIER.  
* WIND 20FT...........SOUTHWEST WINDS 10 TO 15 MPH.  
* LAL.................2.  
* CHANCE OF PRECIP....20 PERCENT.  
* HAINES INDEX........4 LOW.  
* WIND 10000 FT MSL...SOUTHWEST AROUND 40 MPH.  
* MIXING HEIGHT.......8500 FT AGL.  
* TRANSPORT WINDS.....SOUTHWEST AROUND 21 KNOTS.  
* VENTILATION CAT.....EXCELLENT/150000 KNOT-FT.  
   
TONIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT). CHANCE OF  
SHOWERS AND THUNDERSTORMS.  
* MIN TEMPERATURE.....IN THE MID 50S ABOVE 6000 FEET...56 TO 61  
BELOW 6000 FEET.  
* 24 HR TREND......UNCHANGED.  
* MAX HUMIDITY........70-90 PERCENT ABOVE 6000 FEET...75-95 PERCENT  
BELOW 6000 FEET.  
* 24 HR TREND......1 PERCENT WETTER.  
* WIND 20FT...........SOUTH WINDS 10 TO 15 MPH.  
* LAL.................3.  
* CHANCE OF PRECIP....30 PERCENT.  
* HAINES INDEX........3 VERY LOW.  
* WIND 10000 FT MSL...SOUTHWEST 15 TO 20 MPH.  
   
MONDAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT). CHANCE OF  
SHOWERS AND THUNDERSTORMS.  
* MAX TEMPERATURE.....IN THE LOWER 70S ABOVE 6000 FEET...IN THE MID  
70S BELOW 6000 FEET.  
* 24 HR TREND......1 DEGREE COOLER.  
* MIN HUMIDITY........35-45 PERCENT ABOVE 6000 FEET...40-50 PERCENT  
BELOW 6000 FEET.  
* 24 HR TREND......7 PERCENT WETTER.  
* WIND 20FT...........SOUTH WINDS 10 TO 15 MPH.  
* LAL.................3.  
* CHANCE OF PRECIP....50 PERCENT.  
* HAINES INDEX........3 VERY LOW.  
* WIND 10000 FT MSL...SOUTHWEST AROUND 15 MPH.  
* MIXING HEIGHT.......10200 FT AGL.  
* TRANSPORT WINDS.....SOUTH AROUND 12 KNOTS.  
* VENTILATION CAT.....VERY GOOD/104800 KNOT-FT.  
   
FORECAST DAYS 3 THROUGH 5
 
   
TUESDAY
 
PARTLY SUNNY WITH A 50 PERCENT CHANCE OF SHOWERS AND  
THUNDERSTORMS. HIGHS IN THE MID 60S ABOVE 6000 FEET...IN THE UPPER  
60S BELOW 6000 FEET. NORTHEAST WINDS 10 TO 15 MPH. MINIMUM RELATIVE  
HUMIDITY ABOVE 15 PERCENT.    
WEDNESDAY
 
SHOWERS AND THUNDERSTORMS LIKELY. HIGHS IN THE LOWER  
60S ABOVE 6000 FEET...IN THE MID 60S BELOW 6000 FEET. NORTHEAST  
WINDS 15 TO 20 MPH. MINIMUM RELATIVE HUMIDITY ABOVE 15 PERCENT.    
THURSDAY
 
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF SHOWERS AND  
THUNDERSTORMS. HIGHS IN THE LOWER 60S ABOVE 6000 FEET...IN THE MID  
60S BELOW 6000 FEET. NORTHEAST WINDS 10 TO 15 MPH. MINIMUM RELATIVE  
HUMIDITY ABOVE 15 PERCENT.  
 

 
 
NMZ115-250845-  
SOUTHEAST PLAINS-  
239 AM MDT SUN SEP 24 2017  
   
TODAY
 
 
* SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT). SLIGHT CHANCE  
OF SHOWERS AND THUNDERSTORMS.  
* MAX TEMPERATURE.....IN THE LOWER 80S.  
* 24 HR TREND......1 DEGREE WARMER.  
* MIN HUMIDITY........40-50 PERCENT.  
* 24 HR TREND......12 PERCENT DRIER.  
* WIND 20FT...........SOUTH WINDS 10 TO 15 MPH.  
* LAL.................3.  
* CHANCE OF PRECIP....20 PERCENT.  
* HAINES INDEX........4 LOW.  
* WIND 10000 FT MSL...SOUTHWEST AROUND 35 MPH.  
* MIXING HEIGHT.......10400 FT AGL.  
* TRANSPORT WINDS.....SOUTHWEST AROUND 27 KNOTS.  
* VENTILATION CAT.....EXCELLENT/150000 KNOT-FT.  
   
TONIGHT
 
 
* SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT) THEN BECOMING  
MOSTLY CLOUDY (45-55 PERCENT). CHANCE OF  
SHOWERS AND THUNDERSTORMS.  
* MIN TEMPERATURE.....59 TO 64.  
* 24 HR TREND......1 DEGREE COOLER.  
* MAX HUMIDITY........80-100 PERCENT.  
* 24 HR TREND......2 PERCENT DRIER.  
* WIND 20FT...........SOUTH WINDS 10 TO 15 MPH.  
* LAL.................3.  
* CHANCE OF PRECIP....50 PERCENT.  
* HAINES INDEX........3 VERY LOW.  
* WIND 10000 FT MSL...SOUTHWEST 20 TO 25 MPH.  
   
MONDAY
 
 
* SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT). CHANCE OF  
SHOWERS AND THUNDERSTORMS.  
* MAX TEMPERATURE.....77 TO 82.  
* 24 HR TREND......3 DEGREES COOLER.  
* MIN HUMIDITY........50-60 PERCENT.  
* 24 HR TREND......9 PERCENT WETTER.  
* WIND 20FT...........SOUTHEAST WINDS 5 TO 10 MPH.  
* LAL.................4.  
* CHANCE OF PRECIP....50 PERCENT.  
* HAINES INDEX........3 VERY LOW.  
* WIND 10000 FT MSL...SOUTHWEST AROUND 20 MPH.  
* MIXING HEIGHT.......10400 FT AGL.  
* TRANSPORT WINDS.....SOUTH AROUND 22 KNOTS.  
* VENTILATION CAT.....GOOD/93300 KNOT-FT.  
   
FORECAST DAYS 3 THROUGH 5
 
   
TUESDAY
 
PARTLY SUNNY WITH A 50 PERCENT CHANCE OF SHOWERS AND  
THUNDERSTORMS. HIGHS IN THE LOWER 70S. NORTHEAST WINDS 10 TO 15 MPH.  
MINIMUM RELATIVE HUMIDITY ABOVE 15 PERCENT.    
WEDNESDAY
 
SHOWERS AND THUNDERSTORMS LIKELY. HIGHS IN THE UPPER  
60S. NORTHEAST WINDS 10 TO 15 MPH. MINIMUM RELATIVE HUMIDITY ABOVE  
15 PERCENT.    
THURSDAY
 
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF SHOWERS AND  
THUNDERSTORMS. HIGHS IN THE UPPER 60S. NORTHEAST WINDS 10 TO 15 MPH.  
MINIMUM RELATIVE HUMIDITY ABOVE 15 PERCENT.  
 

 
 
TXZ057-074-079>081-250845-  
VAN HORN AND HIGHWAY 54 CORRIDOR-DAVIS/APACHE MOUNTAINS AREA-  
PRESIDIO VALLEY-MARFA PLATEAU-BIG BEND AREA-  
INCLUDING THE CITIES OF VAN HORN, ALPINE, FORT DAVIS, PRESIDIO,  
MARFA, BIG BEND NP, AND MARATHON  
339 AM CDT SUN SEP 24 2017 /239 AM MDT SUN SEP 24 2017/  
   
TODAY
 
 
* SKY/WEATHER.........PARTLY SUNNY (55-65 PERCENT). CHANCE OF  
SHOWERS AND THUNDERSTORMS.  
* MAX TEMPERATURE.....IN THE UPPER 70S ACROSS THE MOUNTAINS...IN  
THE LOWER 90S ALONG THE RIO GRANDE.  
* 24 HR TREND......10 DEGREES COOLER.  
* MIN HUMIDITY........50-60 PERCENT ACROSS THE MOUNTAINS...40-50  
PERCENT ALONG THE RIO GRANDE.  
* 24 HR TREND......6 PERCENT WETTER.  
* WIND 20FT...........SOUTHEAST WINDS 5 TO 10 MPH.  
* LAL.................4.  
* CHANCE OF PRECIP....50 PERCENT.  
* HAINES INDEX........2 VERY LOW.  
* WIND 10000 FT MSL...SOUTHWEST AROUND 25 MPH.  
* MIXING HEIGHT.......10200 FT AGL.  
* TRANSPORT WINDS.....SOUTH AROUND 17 KNOTS.  
* VENTILATION CAT.....GOOD/93600 KNOT-FT.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT). CHANCE OF  
SHOWERS AND THUNDERSTORMS.  
* MIN TEMPERATURE.....IN THE LOWER 60S ACROSS THE MOUNTAINS...IN  
THE LOWER 70S ALONG THE RIO GRANDE.  
* 24 HR TREND......1 DEGREE COOLER.  
* MAX HUMIDITY........75-95 PERCENT ACROSS THE MOUNTAINS...65-85  
PERCENT ALONG THE RIO GRANDE.  
* 24 HR TREND......2 PERCENT WETTER.  
* WIND 20FT...........SOUTHEAST WINDS 5 TO 10 MPH.  
* LAL.................4.  
* CHANCE OF PRECIP....50 PERCENT.  
* HAINES INDEX........3 VERY LOW.  
* WIND 10000 FT MSL...SOUTHWEST 10 TO 15 MPH.  
   
MONDAY
 
 
* SKY/WEATHER.........PARTLY SUNNY (55-65 PERCENT). SHOWERS AND  
THUNDERSTORMS LIKELY.  
* MAX TEMPERATURE.....74 TO 79 ACROSS THE MOUNTAINS...IN THE UPPER  
80S ALONG THE RIO GRANDE.  
* 24 HR TREND......2 DEGREES COOLER.  
* MIN HUMIDITY........50-60 PERCENT.  
* 24 HR TREND......3 PERCENT WETTER.  
* WIND 20FT...........SOUTHEAST WINDS 5 TO 10 MPH.  
* LAL.................4.  
* CHANCE OF PRECIP....70 PERCENT.  
* HAINES INDEX........3 VERY LOW.  
* WIND 10000 FT MSL...SOUTHWEST AROUND 25 MPH.  
* MIXING HEIGHT.......12000 FT AGL.  
* TRANSPORT WINDS.....SOUTH AROUND 14 KNOTS.  
* VENTILATION CAT.....GOOD/85500 KNOT-FT.  
   
FORECAST DAYS 3 THROUGH 5
 
   
TUESDAY
 
PARTLY SUNNY WITH A 50 PERCENT CHANCE OF SHOWERS AND  
THUNDERSTORMS. HIGHS IN THE LOWER 70S ACROSS THE MOUNTAINS...IN THE  
UPPER 80S ALONG THE RIO GRANDE. NORTHEAST WINDS 10 TO 15 MPH.  
MINIMUM RELATIVE HUMIDITY ABOVE 15 PERCENT.    
WEDNESDAY
 
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF SHOWERS AND  
THUNDERSTORMS. HIGHS IN THE UPPER 60S ACROSS THE MOUNTAINS...IN THE  
MID 80S ALONG THE RIO GRANDE. NORTHEAST WINDS 10 TO 15 MPH. MINIMUM  
RELATIVE HUMIDITY ABOVE 15 PERCENT.    
THURSDAY
 
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF SHOWERS AND  
THUNDERSTORMS. HIGHS IN THE MID 60S ACROSS THE MOUNTAINS...IN THE  
LOWER 80S ALONG THE RIO GRANDE. NORTHEAST WINDS 10 TO 15 MPH.  
MINIMUM RELATIVE HUMIDITY ABOVE 15 PERCENT.  
 

 
 
TXZ045>048-050>053-058>063-067>070-075-082-250845-  
GAINES-DAWSON-BORDEN-SCURRY-ANDREWS-MARTIN-HOWARD-MITCHELL-  
REEVES COUNTY AND UPPER TRANS PECOS-LOVING-WINKLER-ECTOR-MIDLAND-  
GLASSCOCK-WARD-CRANE-UPTON-REAGAN-PECOS-TERRELL-  
INCLUDING THE CITIES OF SEMINOLE, LAMESA, GAIL, SNYDER, ANDREWS,  
STANTON, BIG SPRING, COLORADO CITY, PECOS, MENTONE, KERMIT, ODESSA,  
MIDLAND, GARDEN CITY, MONAHANS, CRANE, MCCAMEY, RANKIN, BIG LAKE,  
FORT STOCKTON, DRYDEN, AND SANDERSON  
339 AM CDT SUN SEP 24 2017  
   
TODAY
 
 
* SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT). CHANCE OF  
SHOWERS AND THUNDERSTORMS.  
* MAX TEMPERATURE.....IN THE LOWER 80S.  
* 24 HR TREND......9 DEGREES COOLER.  
* MIN HUMIDITY........50-60 PERCENT.  
* 24 HR TREND......10 PERCENT WETTER.  
* WIND 20FT...........SOUTHEAST WINDS 15 TO 20 MPH.  
* LAL.................4.  
* CHANCE OF PRECIP....50 PERCENT.  
* HAINES INDEX........2 VERY LOW.  
* WIND 10000 FT MSL...SOUTHWEST AROUND 25 MPH.  
* MIXING HEIGHT.......9300 FT AGL.  
* TRANSPORT WINDS.....SOUTH AROUND 30 KNOTS.  
* VENTILATION CAT.....VERY GOOD/126400 KNOT-FT.  
   
TONIGHT
 
 
* SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT). SHOWERS AND  
THUNDERSTORMS LIKELY.  
* MIN TEMPERATURE.....IN THE UPPER 60S.  
* 24 HR TREND......1 DEGREE COOLER.  
* MAX HUMIDITY........75-95 PERCENT.  
* 24 HR TREND......4 PERCENT WETTER.  
* WIND 20FT...........SOUTHEAST WINDS 10 TO 15 MPH.  
* LAL.................4.  
* CHANCE OF PRECIP....60 PERCENT.  
* HAINES INDEX........3 VERY LOW.  
* WIND 10000 FT MSL...SOUTH 10 TO 15 MPH.  
   
MONDAY
 
 
* SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT). SHOWERS AND  
THUNDERSTORMS LIKELY.  
* MAX TEMPERATURE.....AROUND 80.  
* 24 HR TREND......2 DEGREES COOLER.  
* MIN HUMIDITY........55-65 PERCENT.  
* 24 HR TREND......6 PERCENT WETTER.  
* WIND 20FT...........SOUTHEAST WINDS 10 TO 15 MPH.  
* LAL.................5.  
* CHANCE OF PRECIP....70 PERCENT.  
* HAINES INDEX........3 VERY LOW.  
* WIND 10000 FT MSL...SOUTH AROUND 25 MPH.  
* MIXING HEIGHT.......10300 FT AGL.  
* TRANSPORT WINDS.....SOUTH AROUND 29 KNOTS.  
* VENTILATION CAT.....VERY GOOD/115800 KNOT-FT.  
   
FORECAST DAYS 3 THROUGH 5
 
   
TUESDAY
 
SHOWERS AND THUNDERSTORMS LIKELY. HIGHS IN THE UPPER 70S.  
NORTHEAST WINDS 10 TO 15 MPH. MINIMUM RELATIVE HUMIDITY ABOVE  
15 PERCENT.    
WEDNESDAY
 
SHOWERS AND THUNDERSTORMS LIKELY. HIGHS IN THE LOWER  
70S. NORTHEAST WINDS 10 TO 15 MPH. MINIMUM RELATIVE HUMIDITY ABOVE  
15 PERCENT.    
THURSDAY
 
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF SHOWERS AND  
THUNDERSTORMS. HIGHS IN THE LOWER 70S. NORTHEAST WINDS 10 TO 15 MPH.  
MINIMUM RELATIVE HUMIDITY ABOVE 15 PERCENT.  
 

 
 
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