577  
FNUS55 KPSR 151007  
FWFPSR  
 
FIRE WEATHER PLANNING FORECAST FOR SOUTHWEST AND SOUTH-CENTRAL  
ARIZONA AND SOUTHEAST CALIFORNIA  
NATIONAL WEATHER SERVICE PHOENIX AZ  
307 AM MST MON JUL 15 2019  
   
DISCUSSION
 
 
NO SIGNIFICANT CHANGES TO THE OVERALL WEATHER PATTERN AS HOT  
TEMPERATURES AND SLIGHT CHANCES FOR AFTERNOON STORMS ALONG THE  
HIGH TERRAIN REMAIN. BEST CHANCES FOR STORMS WILL BE  
NORTH/EAST/SOUTH OF PHOENIX METRO. ERRATIC OUTFLOW WINDS CAPABLE  
OF CHANGING THE WIND DIRECTION ARE MORE LIKELY. MINIMUM RH VALUES  
WILL HOVER BELOW 15% TODAY AND SLIGHTLY DRIER TOMORROW WITH DECENT  
OVERNIGHT RECOVERIES TONIGHT AND WORSE RECOVERIES TOMORROW.  
 
NOTE...ADDITIONAL FIRE WEATHER FORECAST INFORMATION CAN BE FOUND  
IN THE AREA FORECAST DISCUSSION. SEE PRODUCT PHXAFDPSR.  
 
AZZ132-152215-  
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-  
307 AM MST MON JUL 15 2019  
   
TODAY
 
 
* SKY/WEATHER.....................SUNNY.  
* MAX TEMPERATURE.................108-113.  
* 24 HR TREND..................3 DEGREES WARMER.  
* MIN HUMIDITY....................10-15 PCT.  
* 24 HR TREND..................5 PCT DRIER.  
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 15 MPH.  
* WINDS...10000 FT MSL............SOUTHWEST 10 TO 15 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.......13400 FT AGL.  
* TRANSPORT WIND FOR PHOENIX......WEST 8 KNOTS.  
* DISPERSION FOR PHOENIX..........EXCELLENT.  
   
TONIGHT
 
 
* SKY/WEATHER.....................CLEAR.  
* MIN TEMPERATURE.................81-91.  
* 24 HR TREND..................LITTLE CHANGE.  
* MAX HUMIDITY....................16-30 PCT.  
* 24 HR TREND..................15 PCT DRIER.  
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 15 MPH.  
* WINDS...10000 FT MSL............SOUTHWEST 10 TO 20 MPH.  
* CHANCE OF PRECIP................0 PERCENT.  
* LAL.............................1.  
   
TUESDAY
 
 
* SKY/WEATHER.....................SUNNY.  
* MAX TEMPERATURE.................108-114.  
* 24 HR TREND..................LITTLE CHANGE.  
* MIN HUMIDITY....................8-13 PCT.  
* 24 HR TREND..................LITTLE RH CHANGE.  
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH.  
* WINDS...10000 FT MSL............SOUTHWEST 15 TO 25 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.......14600 FT AGL.  
* TRANSPORT WIND FOR PHOENIX......SOUTHWEST 15 KNOTS.  
* DISPERSION FOR PHOENIX..........EXCELLENT.  
 
   
EXTENDED
 
   
WEDNESDAY
 
MOSTLY CLEAR. LOWS 76-86. HIGHS 103-108. SOUTH WINDS  
10 TO 20 MPH.    
THURSDAY
 
MOSTLY CLEAR. LOWS 76-86. HIGHS 102-107. SOUTH WINDS  
5 TO 15 MPH.    
FRIDAY
 
MOSTLY CLEAR. LOWS 76-86. HIGHS 103-108. SOUTHWEST  
WINDS 5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN  
15 PERCENT.    
SATURDAY
 
MOSTLY CLEAR. LOWS 76-86. HIGHS 101-107.    
SUNDAY
 
PARTLY CLOUDY. LOWS 76-86. HIGHS 99-105.  
 

 
 
AZZ131-CAZ231-152215-  
YUMA/MARTINEZ LAKE AND VICINITY/LOWER COLORADO RIVER VALLEY AZ-  
LOWER COLORADO RIVER VALLEY CA-  
307 AM MST MON JUL 15 2019 /307 AM PDT MON JUL 15 2019/  
   
TODAY
 
 
* SKY/WEATHER.....................SUNNY.  
* MAX TEMPERATURE.................111-115.  
* 24 HR TREND..................3 DEGREES WARMER.  
* MIN HUMIDITY....................8-13 PCT.  
* 24 HR TREND..................7 PCT DRIER.  
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH.  
* WINDS...10000 FT MSL............SOUTHWEST 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..........12200 FT AGL.  
* TRANSPORT WIND FOR YUMA.........SOUTHWEST 7 KNOTS.  
* DISPERSION FOR YUMA.............VERY GOOD.  
   
TONIGHT
 
 
* SKY/WEATHER.....................CLEAR.  
* MIN TEMPERATURE.................80-86.  
* 24 HR TREND..................LITTLE CHANGE.  
* MAX HUMIDITY....................17-27 PCT.  
* 24 HR TREND..................19 PCT DRIER.  
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 15 MPH.  
* WINDS...10000 FT MSL............SOUTH 10 TO 20 MPH.  
* CHANCE OF PRECIP................0 PERCENT.  
* CWR (>= 0.10 IN)................0 PERCENT.  
* LAL.............................1.  
   
TUESDAY
 
 
* SKY/WEATHER.....................SUNNY.  
* MAX TEMPERATURE.................111-115.  
* 24 HR TREND..................LITTLE CHANGE.  
* MIN HUMIDITY....................7-12 PCT.  
* 24 HR TREND..................LITTLE RH CHANGE.  
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH.  
* WINDS...10000 FT MSL............SOUTHWEST 20 TO 30 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..........11600 FT AGL.  
* TRANSPORT WIND FOR YUMA.........SOUTH 16 KNOTS.  
* DISPERSION FOR YUMA.............EXCELLENT.  
 
   
EXTENDED
 
   
WEDNESDAY
 
CLEAR. LOWS 76-84. HIGHS 105-109. SOUTH WINDS 5 TO  
15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.    
THURSDAY
 
MOSTLY CLEAR. LOWS 76-83. HIGHS 105-109. SOUTH WINDS  
5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN  
15 PERCENT.    
FRIDAY
 
CLEAR. LOWS 76-83. HIGHS 105-109. SOUTHWEST WINDS 5 TO  
15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.    
SATURDAY
 
MOSTLY CLEAR. LOWS 76-82. HIGHS 104-108.    
SUNDAY
 
MOSTLY CLEAR. LOWS 77-83. HIGHS 103-107.  
 

 
 
AZZ133-152215-  
SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS-  
SOUTHERN TONTO NF/WEST SAN CARLOS BIA/SOUTH PORTION FT APACHE BIA/  
CAZ-  
307 AM MST MON JUL 15 2019  
   
TODAY
 
 
* SKY/WEATHER.....................MOSTLY SUNNY.  
* MAX TEMPERATURE.................95-110.  
* 24 HR TREND..................LITTLE CHANGE.  
* MIN HUMIDITY....................13-19 PCT.  
* 24 HR TREND..................3 PCT DRIER.  
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 15 MPH.  
* WINDS...10000 FT MSL............LIGHT AND VARIABLE IN THE MORNING  
BECOMING WEST 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.  
   
TONIGHT
 
 
* SKY/WEATHER.....................CLEAR.  
* MIN TEMPERATURE.................66-84.  
* 24 HR TREND..................LITTLE CHANGE.  
* MAX HUMIDITY....................26-49 PCT.  
* 24 HR TREND..................12 PCT DRIER.  
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 10 MPH IN THE EVENING  
BECOMING NORTH AFTER MIDNIGHT.  
* WINDS...10000 FT MSL............WEST 10 TO 15 MPH.  
* CHANCE OF PRECIP................0 PERCENT.  
* LAL.............................1.  
   
TUESDAY
 
 
* SKY/WEATHER.....................MOSTLY SUNNY.  
* MAX TEMPERATURE.................94-110.  
* 24 HR TREND..................LITTLE CHANGE.  
* MIN HUMIDITY....................11-17 PCT.  
* 24 HR TREND..................LITTLE RH CHANGE.  
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 10 MPH IN THE MORNING  
BECOMING WEST 5 TO 15 MPH IN THE AFTERNOON.  
* WINDS...10000 FT MSL............SOUTHWEST 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
 
   
WEDNESDAY
 
MOSTLY CLEAR. LOWS 64-83. HIGHS 90-105. SOUTHWEST  
WINDS 10 TO 20 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS 63-82. HIGHS 89-103. WEST WINDS  
10 TO 20 MPH.    
FRIDAY
 
PARTLY CLOUDY. LOWS 63-81. HIGHS 90-104. WEST WINDS  
10 TO 20 MPH.    
SATURDAY
 
PARTLY CLOUDY. LOWS 63-81. HIGHS 88-104.    
SUNDAY
 
PARTLY CLOUDY. CHANCE OF SPRINKLES. LOWS 63-80. HIGHS  
87-101.  
 

 
 
CAZ232-152215-  
IMPERIAL COUNTY AND EASTERN RIVERSIDE COUNTY-  
307 AM PDT MON JUL 15 2019  
   
TODAY
 
 
* SKY/WEATHER.....................SUNNY.  
* MAX TEMPERATURE.................106-115.  
* 24 HR TREND..................LITTLE CHANGE.  
* MIN HUMIDITY....................6-11 PCT.  
* 24 HR TREND..................6 PCT DRIER.  
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHWEST 5 TO 10 MPH IN THE  
MORNING BECOMING SOUTHWEST IN THE AFTERNOON.  
* WINDS...10000 FT MSL............SOUTHWEST 10 TO 15 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.  
   
TONIGHT
 
 
* SKY/WEATHER.....................CLEAR.  
* MIN TEMPERATURE.................79-86.  
* 24 HR TREND..................LITTLE CHANGE.  
* MAX HUMIDITY....................14-30 PCT.  
* 24 HR TREND..................11 PCT DRIER.  
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 15 MPH.  
* WINDS...10000 FT MSL............LIGHT AND VARIABLE IN THE EVENING  
BECOMING SOUTH 10 TO 20 MPH AFTER MIDNIGHT.  
* CHANCE OF PRECIP................0 PERCENT.  
* CWR (>= 0.10 IN)................0 PERCENT.  
* LAL.............................1.  
   
TUESDAY
 
 
* SKY/WEATHER.....................SUNNY.  
* MAX TEMPERATURE.................105-115.  
* 24 HR TREND..................LITTLE CHANGE.  
* MIN HUMIDITY....................5-10 PCT.  
* 24 HR TREND..................LITTLE CHANGE.  
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 10 MPH IN THE MORNING  
BECOMING SOUTHWEST 5 TO 15 MPH IN THE AFTERNOON.  
* WINDS...10000 FT MSL............SOUTHWEST 25 TO 35 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.  
 
   
EXTENDED
 
   
WEDNESDAY
 
CLEAR. LOWS 75-83. HIGHS 101-111. SOUTHWEST WINDS  
10 TO 20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN  
15 PERCENT.    
THURSDAY
 
MOSTLY CLEAR. LOWS 75-82. HIGHS 100-108. SOUTHWEST  
WINDS 5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN  
15 PERCENT.    
FRIDAY
 
MOSTLY CLEAR. LOWS 75-81. HIGHS 100-109. SOUTHWEST  
WINDS 5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN  
15 PERCENT.    
SATURDAY
 
MOSTLY CLEAR. LOWS 75-81. HIGHS 99-109.    
SUNDAY
 
MOSTLY CLEAR. LOWS 75-82. HIGHS 98-107.  
 

 
 
CAZ230-152215-  
JOSHUA TREE NATIONAL PARK-  
307 AM PDT MON JUL 15 2019  
   
TODAY
 
 
* SKY/WEATHER.....................SUNNY.  
* MAX TEMPERATURE.................95-110.  
* 24 HR TREND..................LITTLE CHANGE.  
* MIN HUMIDITY....................5-10 PCT.  
* 24 HR TREND..................4 PCT DRIER.  
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHWEST 5 TO 10 MPH IN THE  
MORNING BECOMING SOUTHWEST 5 TO 15 MPH IN THE AFTERNOON.  
* WINDS...10000 FT MSL............SOUTHWEST 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.....................CLEAR.  
* MIN TEMPERATURE.................67-80.  
* 24 HR TREND..................LITTLE CHANGE.  
* MAX HUMIDITY....................15-20 PCT.  
* 24 HR TREND..................LITTLE RH CHANGE.  
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 15 MPH.  
* WINDS...10000 FT MSL............SOUTHWEST 5 TO 15 MPH IN THE  
EVENING BECOMING SOUTH 20 TO 30 MPH AFTER MIDNIGHT.  
* CHANCE OF PRECIP................0 PERCENT.  
* CWR (>= 0.10 IN)................0 PERCENT.  
* LAL.............................1.  
   
TUESDAY
 
 
* SKY/WEATHER.....................SUNNY.  
* MAX TEMPERATURE.................94-109.  
* 24 HR TREND..................LITTLE CHANGE.  
* MIN HUMIDITY....................6-11 PCT.  
* 24 HR TREND..................LITTLE CHANGE.  
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 10 MPH IN THE MORNING  
BECOMING SOUTHWEST 10 TO 20 MPH IN THE AFTERNOON.  
* WINDS...10000 FT MSL............SOUTHWEST 25 TO 35 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.  
 
   
EXTENDED
 
   
WEDNESDAY
 
CLEAR. LOWS 62-78. HIGHS 90-105. SOUTHWEST WINDS  
10 TO 20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN  
15 PERCENT.    
THURSDAY
 
MOSTLY CLEAR. LOWS 62-76. HIGHS 89-104. SOUTHWEST  
WINDS 10 TO 20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN  
15 PERCENT.    
FRIDAY
 
MOSTLY CLEAR. LOWS 62-76. HIGHS 89-105. SOUTHWEST WINDS  
10 TO 20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN  
15 PERCENT.    
SATURDAY
 
CLEAR. LOWS 63-76. HIGHS 88-104.    
SUNDAY
 
MOSTLY CLEAR. LOWS 63-78. HIGHS 88-103.  
 

 
   
8 TO 10 DAY OUTLOOK
 
MONDAY JULY 22ND THROUGH WEDNESDAY JULY  
24TH: NEAR NORMAL TEMPERATURES AND ABOVE MEDIAN PRECIPITATION.  
 
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