329
FNUS55 KPSR 170734
FWFPSR
FIRE WEATHER PLANNING FORECAST FOR SOUTHWEST AND SOUTH-CENTRAL
ARIZONA AND SOUTHEAST CALIFORNIA
NATIONAL WEATHER SERVICE PHOENIX AZ
1234 AM MST FRI JUL 17 2026
DISCUSSION
SHOWERS AND THUNDERSTORMS WILL REMAIN POSSIBLE OVER THE ARIZONA
DISTRICTS INTO THIS AFTERNOON WITH MUCH LOWER CHANCES INTO
WESTERN DISTRICTS. ACTIVITY OVER SOUTH-CENTRAL ARIZONA WILL STILL
BE CAPABLE OF PRODUCING LOCALIZED FLOODING THROUGH EARLY AFTERNOON
BEFORE DRYING BEGINS TO MOVE IN FROM THE SOUTH. ELEVATED SOUTHERLY
WINDS ARE ANTICIPATED MUCH OF THE PERIOD FOR THE WESTERN
DISTRICTS WITH LIGHT WINDS ELSEWHERE. ELEVATED HUMIDITIES TODAY
WILL KEEP MINIMUM AFTERNOON HUMIDITY LEVELS FROM 30% IN WESTERN
DISTRICTS TO 40-50% OVER THE EASTERN DISTRICTS. A GRADUAL DRYING
TREND OVER THE WEEKEND WILL DROP MINRHS TO 20-35%.
NOTE...ADDITIONAL FIRE WEATHER FORECAST INFORMATION CAN BE FOUND
IN THE AREA FORECAST DISCUSSION. SEE PRODUCT PHXAFDPSR.
AZZ132-171945-
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-
1234 AM MST FRI JUL 17 2026
TODAY
* SKY/WEATHER.....................PARTLY SUNNY. CHANCE OF SHOWERS
IN THE MORNING. SLIGHT CHANCE OF THUNDERSTORMS . SLIGHT CHANCE OF
SHOWERS IN THE AFTERNOON.
* MAX TEMPERATURE.................90-101.
* 24 HR TREND..................4 DEGREES COOLER.
* MIN HUMIDITY....................27-49 PCT.
* 24 HR TREND..................3 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHEAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTH 5 TO 15 MPH.
* CHANCE OF PRECIP................40 PERCENT.
* CWR (>= 0.10 IN)................10 PERCENT WEST PORTION...40
PERCENT EAST PORTION.
* CHANCE OF THUNDER...............21 PERCENT.
* MIXING HEIGHT FOR PHOENIX.......6800 FT AGL.
* TRANSPORT WIND FOR PHOENIX......NORTHWEST 5 KNOTS.
* DISPERSION FOR PHOENIX..........FAIR.
TONIGHT
* SKY/WEATHER.....................PARTLY CLOUDY.
* MIN TEMPERATURE.................75-85.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................47-74 PCT.
* 24 HR TREND..................10 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHEAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 5 TO 15 MPH IN THE
EVENING BECOMING LIGHT AND VARIABLE AFTER MIDNIGHT.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............6 PERCENT.
SATURDAY
* SKY/WEATHER.....................PARTLY SUNNY.
* MAX TEMPERATURE.................94-104.
* 24 HR TREND..................4 DEGREES WARMER.
* MIN HUMIDITY....................23-39 PCT.
* 24 HR TREND..................10 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHEAST 5 TO 10 MPH IN THE
MORNING BECOMING SOUTH IN THE AFTERNOON.
* WINDS...10000 FT MSL............SOUTH 5 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............3 PERCENT.
* MIXING HEIGHT FOR PHOENIX.......9700 FT AGL.
* TRANSPORT WIND FOR PHOENIX......WEST 5 KNOTS.
* DISPERSION FOR PHOENIX..........GOOD.
EXTENDED
SUNDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 77-87. HIGHS 96-105. SOUTH WINDS 5 TO 15 MPH.
MONDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 77-87. HIGHS 97-105. SOUTH WINDS 5 TO 15 MPH.
TUESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 77-87. HIGHS 97-106. SOUTH WINDS 5 TO 15 MPH.
WEDNESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 78-88. HIGHS 99-107.
THURSDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 79-89. HIGHS 100-107.
AZZ131-CAZ231-171945-
YUMA/MARTINEZ LAKE AND VICINITY/LOWER COLORADO RIVER VALLEY AZ-
LOWER COLORADO RIVER VALLEY CA-
1234 AM MST FRI JUL 17 2026 /1234 AM PDT FRI JUL 17 2026/
TODAY
* SKY/WEATHER.....................PARTLY SUNNY. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS.
* MAX TEMPERATURE.................100-105.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................25-35 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHEAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTH 5 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............8 PERCENT.
* MIXING HEIGHT FOR YUMA..........8600 FT AGL.
* TRANSPORT WIND FOR YUMA.........SOUTHEAST 12 KNOTS.
* DISPERSION FOR YUMA.............EXCELLENT.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................79-84.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................44-61 PCT.
* 24 HR TREND..................5 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHEAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHEAST 5 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............3 PERCENT.
SATURDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................102-107.
* 24 HR TREND..................3 DEGREES WARMER.
* MIN HUMIDITY....................21-26 PCT.
* 24 HR TREND..................5 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHEAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHEAST 5 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............1 PERCENT.
* MIXING HEIGHT FOR YUMA..........9000 FT AGL.
* TRANSPORT WIND FOR YUMA.........SOUTHEAST 7 KNOTS.
* DISPERSION FOR YUMA.............GOOD.
EXTENDED
SUNDAY
PARTLY CLOUDY. LOWS 81-86. HIGHS 103-108. SOUTH WINDS
5 TO 15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 81-86. HIGHS 102-107. SOUTH WINDS
5 TO 15 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 81-86. HIGHS 103-108. SOUTH WINDS
5 TO 15 MPH.
WEDNESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 82-87. HIGHS 104-109.
THURSDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 82-87. HIGHS 104-109.
AZZ133-171945-
SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS-
SOUTHERN TONTO NF/WEST SAN CARLOS BIA/SOUTH PORTION FT APACHE BIA/
CAZ-
1234 AM MST FRI JUL 17 2026
TODAY
* SKY/WEATHER.....................MOSTLY CLOUDY. CHANCE OF SHOWERS
AND THUNDERSTORMS.
* MAX TEMPERATURE.................77-90.
* 24 HR TREND..................7 DEGREES COOLER.
* MIN HUMIDITY....................45-66 PCT.
* 24 HR TREND..................15 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTH 10 TO 15 MPH.
* CHANCE OF PRECIP................60 PERCENT.
* CWR (>= 0.10 IN)................50 PERCENT.
* CHANCE OF THUNDER...............44 PERCENT.
TONIGHT
* SKY/WEATHER.....................PARTLY CLOUDY. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS.
* MIN TEMPERATURE.................60-77.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................67-93 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 10 MPH IN THE EVENING
BECOMING MOSTLY DOWNSLOPE/DOWNVALLEY AFTER MIDNIGHT.
* WINDS...10000 FT MSL............WEST 10 TO 15 MPH.
* CHANCE OF PRECIP................20 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............14 PERCENT.
SATURDAY
* SKY/WEATHER.....................PARTLY SUNNY. SLIGHT CHANCE OF
THUNDERSTORMS IN THE MORNING. CHANCE OF SHOWERS . CHANCE OF
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.................80-93.
* 24 HR TREND..................3 DEGREES WARMER.
* MIN HUMIDITY....................39-57 PCT.
* 24 HR TREND..................7 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............WEST 10 TO 15 MPH.
* CHANCE OF PRECIP................30 PERCENT.
* CWR (>= 0.10 IN)................20 PERCENT.
* CHANCE OF THUNDER...............32 PERCENT.
EXTENDED
SUNDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 60-78. HIGHS 81-95. NORTHWEST WINDS 5 TO
15 MPH.
MONDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS 60-78. HIGHS 81-95. NORTHWEST WINDS 5 TO
15 MPH.
TUESDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 61-78. HIGHS 81-96. NORTHWEST WINDS 5 TO
10 MPH.
WEDNESDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 61-79. HIGHS 83-98.
THURSDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 63-79. HIGHS 85-100.
CAZ232-171945-
IMPERIAL COUNTY AND EASTERN RIVERSIDE COUNTY-
1234 AM PDT FRI JUL 17 2026
TODAY
* SKY/WEATHER.....................PARTLY SUNNY. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.................96-106.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................25-34 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHEAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTH 5 TO 15 MPH.
* CHANCE OF PRECIP................10 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............10 PERCENT.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................81-86.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................41-57 PCT.
* 24 HR TREND..................8 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............LIGHT AND VARIABLE.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............4 PERCENT.
SATURDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................98-108.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................20-28 PCT.
* 24 HR TREND..................5 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............EAST 5 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............1 PERCENT.
EXTENDED
SUNDAY
MOSTLY CLEAR. LOWS 81-88. HIGHS 99-109. SOUTH WINDS
10 TO 20 MPH.
MONDAY
MOSTLY CLEAR. LOWS 81-87. HIGHS 98-109. SOUTHWEST WINDS
5 TO 15 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 81-88. HIGHS 99-109. SOUTH WINDS
5 TO 15 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 82-89. HIGHS 100-110.
THURSDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 83-89. HIGHS 99-109.
CAZ230-171945-
JOSHUA TREE NATIONAL PARK-
1234 AM PDT FRI JUL 17 2026
TODAY
* SKY/WEATHER.....................PARTLY SUNNY. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.................85-98.
* 24 HR TREND..................4 DEGREES COOLER.
* MIN HUMIDITY....................29-39 PCT.
* 24 HR TREND..................6 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 5 TO 15 MPH.
* CHANCE OF PRECIP................10 PERCENT IN THE MORNING
BECOMING 20 PERCENT IN THE AFTERNOON.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............13 PERCENT.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................70-83.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................42-54 PCT.
* 24 HR TREND..................7 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............LIGHT AND VARIABLE.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............5 PERCENT.
SATURDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................88-102.
* 24 HR TREND..................3 DEGREES WARMER.
* MIN HUMIDITY....................23-31 PCT.
* 24 HR TREND..................7 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHEAST 5 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............3 PERCENT.
EXTENDED
SUNDAY
MOSTLY CLEAR. LOWS 71-84. HIGHS 89-102. SOUTHWEST WINDS
5 TO 15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 70-84. HIGHS 88-102. SOUTHWEST WINDS
5 TO 15 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 70-84. HIGHS 89-103. SOUTHWEST
WINDS 5 TO 15 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 72-85. HIGHS 90-104.
THURSDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 72-85. HIGHS 89-103.
8 TO 10 DAY OUTLOOK
FRIDAY JULY 24TH THROUGH SUNDAY JULY 26TH:
ABOVE NORMAL TEMPERATURES AND ABOVE MEDIAN PRECIPITATION.
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