170  
FNUS55 KPSR 191054  
FWFPSR  
 
FIRE WEATHER PLANNING FORECAST FOR SOUTHWEST AND SOUTH-CENTRAL  
ARIZONA AND SOUTHEAST CALIFORNIA  
NATIONAL WEATHER SERVICE PHOENIX AZ  
354 AM MST SUN NOV 19 2017  
   
DISCUSSION
 
 
BUILDING HIGH PRESSURE ALOFT WILL BRING CONTINUED DRY AND WARM  
CONDITIONS. PERIODIC BREEZINESS ACROSS THE LOWER COLORADO RIVER  
VALLEY IS LIKELY THIS AFTERNOON WITH LIGHT WINDS ON MONDAY. THE  
DRY CONDITIONS WILL LEAD TO MINIMUM RH VALUES FALLING DOWN MAINLY  
INTO A 10-15 PERCENT RANGE BOTH DAYS WITH GOOD OVERNIGHT  
RECOVERIES.  
 
NOTE...ADDITIONAL FIRE WEATHER FORECAST INFORMATION CAN BE FOUND  
IN THE AREA FORECAST DISCUSSION. SEE PRODUCT PHXAFDPSR.  
 
AZZ132-192300-  
WEST CENTRAL DESERTS/NORTHWEST MARICOPA COUNTY/GREATER PHOENIX  
AREA/SOUTHWEST DESERTS/SOUTHWEST MARICOPA COUNTY/  
NORTHWEST AND NORTH-CENTRAL PINAL COUNTY-  
PHOENIX BLM/YUM BLM/CAZ-CRZ-  
354 AM MST SUN NOV 19 2017  
   
TODAY
 
 
* SKY/WEATHER.....................SUNNY.  
* MAX TEMPERATURE.................72-79.  
* 24 HR TREND..................LITTLE CHANGE.  
* MIN HUMIDITY....................9-14 PCT.  
* 24 HR TREND..................LITTLE RH CHANGE.  
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 5 TO 15 MPH.  
* WINDS...10000 FT MSL............LIGHT AND VARIABLE IN THE MORNING  
BECOMING NORTHWEST 5 TO 15 MPH IN THE AFTERNOON.  
* CHANCE OF PRECIP................0 PERCENT.  
* LAL.............................1.  
* HAINES HIGH LEVEL INDEX.........5 OR MODERATE POTENTIAL FOR LARGE  
PLUME DOMINATED FIRE GROWTH.  
* MIXING HEIGHT FOR PHOENIX.......4400 FT AGL.  
* TRANSPORT WIND FOR PHOENIX......EAST 9 KNOTS.  
* DISPERSION FOR PHOENIX..........FAIR.  
   
TONIGHT
 
 
* SKY/WEATHER.....................CLEAR.  
* MIN TEMPERATURE.................44-54.  
* 24 HR TREND..................LITTLE CHANGE.  
* MAX HUMIDITY....................22-43 PCT.  
* 24 HR TREND..................3 PCT WETTER.  
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHEAST 5 TO 15 MPH.  
* WINDS...10000 FT MSL............NORTHWEST 10 TO 20 MPH.  
* CHANCE OF PRECIP................0 PERCENT.  
* LAL.............................1.  
   
MONDAY
 
 
* SKY/WEATHER.....................MOSTLY SUNNY.  
* MAX TEMPERATURE.................74-80.  
* 24 HR TREND..................LITTLE CHANGE.  
* MIN HUMIDITY....................10-16 PCT.  
* 24 HR TREND..................LITTLE RH CHANGE.  
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHEAST 5 TO 10 MPH IN THE  
MORNING BECOMING NORTHWEST IN THE AFTERNOON.  
* WINDS...10000 FT MSL............NORTHWEST 10 TO 20 MPH.  
* CHANCE OF PRECIP................0 PERCENT.  
* LAL.............................1.  
* HAINES HIGH LEVEL INDEX.........4 OR LOW POTENTIAL FOR LARGE  
PLUME DOMINATED FIRE GROWTH.  
* MIXING HEIGHT FOR PHOENIX.......3300 FT AGL.  
* TRANSPORT WIND FOR PHOENIX......CALM.  
* DISPERSION FOR PHOENIX..........POOR.  
 
   
EXTENDED
 
   
TUESDAY
 
PARTLY CLOUDY. LOWS 48-62. HIGHS 78-83. NORTH WINDS  
5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN  
15 PERCENT.    
WEDNESDAY
 
MOSTLY CLEAR. LOWS 53-63. HIGHS 84-88. NORTHEAST  
WINDS 5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN  
15 PERCENT.    
THURSDAY
 
CLEAR. LOWS 53-63. HIGHS 85-89. NORTHEAST WINDS 5 TO  
15 MPH.    
FRIDAY
 
MOSTLY CLEAR. LOWS 53-63. HIGHS 83-88.    
SATURDAY
 
MOSTLY CLEAR. LOWS 52-62. HIGHS 81-86.  
 

 
 
AZZ133-192300-  
SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS-  
SOUTHERN TONTO NF/WEST SAN CARLOS BIA/SOUTH PORTION FT APACHE BIA/  
CAZ-  
354 AM MST SUN NOV 19 2017  
   
TODAY
 
 
* SKY/WEATHER.....................SUNNY.  
* MAX TEMPERATURE.................64-77.  
* 24 HR TREND..................LITTLE CHANGE.  
* MIN HUMIDITY....................11-16 PCT.  
* 24 HR TREND..................4 PCT WETTER.  
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 5 TO 15 MPH.  
* WINDS...10000 FT MSL............WEST 5 TO 15 MPH.  
* CHANCE OF PRECIP................0 PERCENT.  
* LAL.............................1.  
* HAINES HIGH LEVEL INDEX.........4 OR LOW POTENTIAL FOR LARGE  
PLUME DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
* SKY/WEATHER.....................CLEAR.  
* MIN TEMPERATURE.................33-52.  
* 24 HR TREND..................LITTLE CHANGE.  
* MAX HUMIDITY....................27-51 PCT.  
* 24 HR TREND..................3 PCT WETTER.  
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 5 TO 15 MPH.  
* WINDS...10000 FT MSL............NORTHWEST 10 TO 20 MPH.  
* CHANCE OF PRECIP................0 PERCENT.  
* LAL.............................1.  
   
MONDAY
 
 
* SKY/WEATHER.....................MOSTLY SUNNY.  
* MAX TEMPERATURE.................66-78.  
* 24 HR TREND..................LITTLE CHANGE.  
* MIN HUMIDITY....................12-17 PCT.  
* 24 HR TREND..................LITTLE CHANGE.  
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 5 TO 10 MPH IN THE MORNING  
BECOMING WEST IN THE AFTERNOON.  
* WINDS...10000 FT MSL............NORTHWEST 10 TO 20 MPH.  
* CHANCE OF PRECIP................0 PERCENT.  
* LAL.............................1.  
* HAINES HIGH LEVEL INDEX.........4 OR LOW POTENTIAL FOR LARGE  
PLUME DOMINATED FIRE GROWTH.  
 
   
EXTENDED
 
   
TUESDAY
 
PARTLY CLOUDY. LOWS 37-60. HIGHS 73-84. NORTHEAST  
WINDS 5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN  
15 PERCENT.    
WEDNESDAY
 
MOSTLY CLEAR. LOWS 40-61. HIGHS 73-86. EAST WINDS  
5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN  
15 PERCENT.    
THURSDAY
 
CLEAR. LOWS 41-61. HIGHS 75-88. EAST WINDS 5 TO  
15 MPH.    
FRIDAY
 
MOSTLY CLEAR. LOWS 40-60. HIGHS 74-86.    
SATURDAY
 
MOSTLY CLEAR. LOWS 40-59. HIGHS 72-84.  
 

 
 
AZZ131-CAZ231-192300-  
YUMA/MARTINEZ LAKE AND VICINITY/LOWER COLORADO RIVER VALLEY AZ-  
LOWER COLORADO RIVER VALLEY CA-  
354 AM MST SUN NOV 19 2017 /254 AM PST SUN NOV 19 2017/  
   
TODAY
 
 
* SKY/WEATHER.....................SUNNY.  
* MAX TEMPERATURE.................72-77.  
* 24 HR TREND..................LITTLE CHANGE.  
* MIN HUMIDITY....................7-12 PCT.  
* 24 HR TREND..................LITTLE RH CHANGE.  
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 5 TO 15 MPH.  
* WINDS...10000 FT MSL............NORTHWEST 10 TO 15 MPH.  
* CHANCE OF PRECIP................0 PERCENT.  
* CWR (>= 0.10 IN)................0 PERCENT.  
* LAL.............................1.  
* HAINES HIGH LEVEL INDEX.........5 OR MODERATE POTENTIAL FOR LARGE  
PLUME DOMINATED FIRE GROWTH.  
* MIXING HEIGHT FOR YUMA..........2400 FT AGL.  
* TRANSPORT WIND FOR YUMA.........NORTH 11 KNOTS.  
* DISPERSION FOR YUMA.............FAIR.  
   
TONIGHT
 
 
* SKY/WEATHER.....................MOSTLY CLEAR.  
* MIN TEMPERATURE.................41-52.  
* 24 HR TREND..................LITTLE CHANGE.  
* MAX HUMIDITY....................19-39 PCT.  
* 24 HR TREND..................LITTLE RH CHANGE.  
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 5 TO 15 MPH.  
* WINDS...10000 FT MSL............NORTHWEST 10 TO 20 MPH.  
* CHANCE OF PRECIP................0 PERCENT.  
* CWR (>= 0.10 IN)................0 PERCENT.  
* LAL.............................1.  
   
MONDAY
 
 
* SKY/WEATHER.....................PARTLY SUNNY.  
* MAX TEMPERATURE.................74-79.  
* 24 HR TREND..................LITTLE CHANGE.  
* MIN HUMIDITY....................8-13 PCT.  
* 24 HR TREND..................LITTLE CHANGE.  
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 5 TO 15 MPH.  
* WINDS...10000 FT MSL............NORTHWEST 10 TO 20 MPH.  
* CHANCE OF PRECIP................0 PERCENT.  
* CWR (>= 0.10 IN)................0 PERCENT.  
* LAL.............................1.  
* HAINES HIGH LEVEL INDEX.........4 OR LOW POTENTIAL FOR LARGE  
PLUME DOMINATED FIRE GROWTH.  
* MIXING HEIGHT FOR YUMA..........2100 FT AGL.  
* TRANSPORT WIND FOR YUMA.........NORTH 4 KNOTS.  
* DISPERSION FOR YUMA.............POOR.  
 
   
EXTENDED
 
   
TUESDAY
 
PARTLY CLOUDY. LOWS 47-60. HIGHS 79-83. NORTH WINDS  
5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN  
15 PERCENT.    
WEDNESDAY
 
MOSTLY CLEAR. LOWS 51-62. HIGHS 84-88. NORTH WINDS  
5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN  
15 PERCENT.    
THURSDAY
 
CLEAR. LOWS 52-62. HIGHS 85-89. NORTH WINDS 5 TO  
10 MPH.    
FRIDAY
 
MOSTLY CLEAR. LOWS 52-61. HIGHS 83-88.    
SATURDAY
 
MOSTLY CLEAR. LOWS 51-61. HIGHS 82-86.  
 

 
 
CAZ230-192300-  
JOSHUA TREE NATIONAL PARK-  
254 AM PST SUN NOV 19 2017  
   
TODAY
 
 
* SKY/WEATHER.....................SUNNY.  
* MAX TEMPERATURE.................62-71.  
* 24 HR TREND..................3 DEGREES WARMER.  
* MIN HUMIDITY....................6-11 PCT.  
* 24 HR TREND..................4 PCT DRIER.  
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 5 TO 15 MPH.  
* WINDS...10000 FT MSL............LIGHT AND VARIABLE IN THE MORNING  
BECOMING NORTHWEST 5 TO 15 MPH IN THE AFTERNOON.  
* CHANCE OF PRECIP................0 PERCENT.  
* CWR (>= 0.10 IN)................0 PERCENT.  
* LAL.............................1.  
* HAINES HIGH LEVEL INDEX.........5 OR MODERATE POTENTIAL FOR LARGE  
PLUME DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
* SKY/WEATHER.....................MOSTLY CLEAR.  
* MIN TEMPERATURE.................41-48.  
* 24 HR TREND..................LITTLE CHANGE.  
* MAX HUMIDITY....................14-21 PCT.  
* 24 HR TREND..................3 PCT DRIER.  
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHWEST 5 TO 15 MPH.  
* WINDS...10000 FT MSL............WEST 10 TO 20 MPH.  
* CHANCE OF PRECIP................0 PERCENT.  
* CWR (>= 0.10 IN)................0 PERCENT.  
* LAL.............................1.  
   
MONDAY
 
 
* SKY/WEATHER.....................PARTLY SUNNY.  
* MAX TEMPERATURE.................65-74.  
* 24 HR TREND..................3 DEGREES WARMER.  
* MIN HUMIDITY....................7-12 PCT.  
* 24 HR TREND..................LITTLE CHANGE.  
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHWEST 5 TO 10 MPH IN THE  
MORNING BECOMING SOUTHEAST IN THE AFTERNOON.  
* WINDS...10000 FT MSL............WEST 10 TO 20 MPH IN THE MORNING  
BECOMING NORTHWEST 20 TO 30 MPH IN THE AFTERNOON.  
* CHANCE OF PRECIP................0 PERCENT.  
* CWR (>= 0.10 IN)................0 PERCENT.  
* LAL.............................1.  
* HAINES HIGH LEVEL INDEX.........4 OR LOW POTENTIAL FOR LARGE  
PLUME DOMINATED FIRE GROWTH.  
 
   
EXTENDED
 
   
TUESDAY
 
PARTLY CLOUDY. LOWS 48-58. HIGHS 70-79. NORTH WINDS  
5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN  
15 PERCENT.    
WEDNESDAY
 
MOSTLY CLEAR. LOWS 52-59. HIGHS 76-84. NORTH WINDS  
5 TO 15 MPH.    
THURSDAY
 
CLEAR. LOWS 52-59. HIGHS 78-86. NORTHEAST WINDS 5 TO  
10 MPH.    
FRIDAY
 
MOSTLY CLEAR. LOWS 51-58. HIGHS 75-84.    
SATURDAY
 
MOSTLY CLEAR. LOWS 50-57. HIGHS 72-81.  
 

 
 
CAZ232-192300-  
IMPERIAL COUNTY AND EASTERN RIVERSIDE COUNTY-  
254 AM PST SUN NOV 19 2017  
   
TODAY
 
 
* SKY/WEATHER.....................SUNNY.  
* MAX TEMPERATURE.................69-77.  
* 24 HR TREND..................LITTLE CHANGE.  
* MIN HUMIDITY....................7-12 PCT.  
* 24 HR TREND..................LITTLE RH CHANGE.  
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 5 TO 15 MPH.  
* WINDS...10000 FT MSL............NORTHWEST 10 TO 15 MPH.  
* CHANCE OF PRECIP................0 PERCENT.  
* CWR (>= 0.10 IN)................0 PERCENT.  
* LAL.............................1.  
* HAINES HIGH LEVEL INDEX.........5 OR MODERATE POTENTIAL FOR LARGE  
PLUME DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
* SKY/WEATHER.....................MOSTLY CLEAR.  
* MIN TEMPERATURE.................44-54.  
* 24 HR TREND..................LITTLE CHANGE.  
* MAX HUMIDITY....................15-45 PCT.  
* 24 HR TREND..................3 PCT DRIER.  
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHWEST 5 TO 15 MPH.  
* WINDS...10000 FT MSL............NORTHWEST 10 TO 20 MPH.  
* CHANCE OF PRECIP................0 PERCENT.  
* CWR (>= 0.10 IN)................0 PERCENT.  
* LAL.............................1.  
   
MONDAY
 
 
* SKY/WEATHER.....................PARTLY SUNNY.  
* MAX TEMPERATURE.................72-80.  
* 24 HR TREND..................LITTLE CHANGE.  
* MIN HUMIDITY....................8-13 PCT.  
* 24 HR TREND..................LITTLE CHANGE.  
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 5 TO 10 MPH IN THE MORNING  
BECOMING MOSTLY UPSLOPE/UPVALLEY IN THE AFTERNOON.  
* WINDS...10000 FT MSL............NORTHWEST 15 TO 25 MPH.  
* CHANCE OF PRECIP................0 PERCENT.  
* CWR (>= 0.10 IN)................0 PERCENT.  
* LAL.............................1.  
* HAINES HIGH LEVEL INDEX.........4 OR LOW POTENTIAL FOR LARGE  
PLUME DOMINATED FIRE GROWTH.  
 
   
EXTENDED
 
   
TUESDAY
 
PARTLY CLOUDY. LOWS 49-63. HIGHS 77-83. NORTHWEST  
WINDS 5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN  
15 PERCENT.    
WEDNESDAY
 
MOSTLY CLEAR. LOWS 53-65. HIGHS 82-88. NORTH WINDS  
5 TO 15 MPH.    
THURSDAY
 
CLEAR. LOWS 54-65. HIGHS 83-89. NORTH WINDS 5 TO  
10 MPH.    
FRIDAY
 
MOSTLY CLEAR. LOWS 53-64. HIGHS 81-89.    
SATURDAY
 
MOSTLY CLEAR. LOWS 53-63. HIGHS 79-86.  
 

 
   
8 TO 10 DAY OUTLOOK
 
SUNDAY NOVEMBER 26TH THROUGH TUESDAY  
NOVEMBER 28TH: ABOVE NORMAL TEMPERATURES AND BELOW MEDIAN  
PRECIPITATION.  
 
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