276
FNUS55 KPSR 160819
FWFPSR
FIRE WEATHER PLANNING FORECAST FOR SOUTHWEST AND SOUTH-CENTRAL
ARIZONA AND SOUTHEAST CALIFORNIA
NATIONAL WEATHER SERVICE PHOENIX AZ
119 AM MST THU JUL 16 2026
DISCUSSION
SHOWER AND THUNDERSTORM CHANCES WILL INCREASE OVER ARIZONA
DISTRICTS WITH WIDESPREAD WETTING RAINFALL AND LOCAL FLOODING
POSSIBLE THROUGH FRIDAY MORNING. GUSTY OUTFLOW WINDS AND ABRUPT
WIND SHIFTS FROM ANY STORMS TODAY MAY CREATE ISSUES FOR ANY
ONGOING INCIDENTS, BUT OTHERWISE WINDS WILL ONLY INCUR LOCAL GUSTS
(MOSTLY WESTERN DISTRICTS). MINIMUM AFTERNOON HUMIDITY LEVELS
WILL FALL TO AROUND 25% IN WESTERN DISTRICTS AND ONLY 30-40%
ELSEWHERE. THIS WILL FOLLOW FAIR TO GOOD OVERNIGHT RECOVERY.
..THUNDERSTORMS IMPLY GUSTY WINDS
NOTE...ADDITIONAL FIRE WEATHER FORECAST INFORMATION CAN BE FOUND
IN THE AREA FORECAST DISCUSSION. SEE PRODUCT PHXAFDPSR.
AZZ132-162030-
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-
119 AM MST THU JUL 16 2026
TODAY
* SKY/WEATHER.....................PARTLY SUNNY. SLIGHT CHANCE OF
THUNDERSTORMS IN THE MORNING. SLIGHT CHANCE OF SHOWERS . SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.................98-105.
* 24 HR TREND..................4 DEGREES COOLER.
* MIN HUMIDITY....................26-35 PCT.
* 24 HR TREND..................9 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............LIGHT AND VARIABLE.
* CHANCE OF PRECIP................30 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT WEST PORTION...10
PERCENT EAST PORTION.
* CHANCE OF THUNDER...............24 PERCENT.
* MIXING HEIGHT FOR PHOENIX.......10600 FT AGL.
* TRANSPORT WIND FOR PHOENIX......WEST 10 KNOTS.
* DISPERSION FOR PHOENIX..........EXCELLENT.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLOUDY. CHANCE OF
THUNDERSTORMS IN THE EVENING. CHANCE OF SHOWERS . SLIGHT CHANCE
OF THUNDERSTORMS AFTER MIDNIGHT.
* MIN TEMPERATURE.................74-84.
* 24 HR TREND..................5 DEGREES COOLER.
* MAX HUMIDITY....................53-87 PCT.
* 24 HR TREND..................17 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHEAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............WEST 5 TO 15 MPH.
* CHANCE OF PRECIP................50 PERCENT.
* CWR (>= 0.10 IN)................20 PERCENT WEST PORTION...60
PERCENT EAST PORTION.
* CHANCE OF THUNDER...............34 PERCENT.
FRIDAY
* SKY/WEATHER.....................PARTLY SUNNY. CHANCE OF SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS .
* MAX TEMPERATURE.................90-100.
* 24 HR TREND..................7 DEGREES COOLER.
* MIN HUMIDITY....................29-53 PCT.
* 24 HR TREND..................10 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHEAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............WEST 5 TO 15 MPH.
* CHANCE OF PRECIP................40 PERCENT.
* CWR (>= 0.10 IN)................10 PERCENT WEST PORTION...50
PERCENT EAST PORTION.
* CHANCE OF THUNDER...............24 PERCENT.
* MIXING HEIGHT FOR PHOENIX.......1900 FT AGL.
* TRANSPORT WIND FOR PHOENIX......SOUTHEAST 4 KNOTS.
* DISPERSION FOR PHOENIX..........POOR.
EXTENDED
SATURDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 75-85. HIGHS 94-103. SOUTHEAST
WINDS 5 TO 15 MPH.
SUNDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 76-86. HIGHS 96-104. SOUTH WINDS 5 TO 15 MPH.
MONDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 77-87. HIGHS 96-104. SOUTH WINDS 5 TO 15 MPH.
TUESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 77-87. HIGHS 97-105.
WEDNESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 78-88. HIGHS 98-105.
AZZ131-CAZ231-162030-
YUMA/MARTINEZ LAKE AND VICINITY/LOWER COLORADO RIVER VALLEY AZ-
LOWER COLORADO RIVER VALLEY CA-
119 AM MST THU JUL 16 2026 /119 AM PDT THU JUL 16 2026/
TODAY
* SKY/WEATHER.....................PARTLY SUNNY. SLIGHT CHANCE OF
SHOWERS . SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.................103-108.
* 24 HR TREND..................3 DEGREES COOLER.
* MIN HUMIDITY....................24-30 PCT.
* 24 HR TREND..................7 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 10 TO 20 MPH.
* WINDS...10000 FT MSL............SOUTH 5 TO 15 MPH.
* CHANCE OF PRECIP................20 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............14 PERCENT.
* MIXING HEIGHT FOR YUMA..........6400 FT AGL.
* TRANSPORT WIND FOR YUMA.........SOUTH 12 KNOTS.
* DISPERSION FOR YUMA.............VERY GOOD.
TONIGHT
* SKY/WEATHER.....................PARTLY CLOUDY. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS.
* MIN TEMPERATURE.................81-86.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................48-61 PCT.
* 24 HR TREND..................4 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHEAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............LIGHT AND VARIABLE.
* CHANCE OF PRECIP................20 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............15 PERCENT.
FRIDAY
* SKY/WEATHER.....................PARTLY SUNNY. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS.
* MAX TEMPERATURE.................100-105.
* 24 HR TREND..................4 DEGREES COOLER.
* MIN HUMIDITY....................26-35 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................20 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............11 PERCENT.
* MIXING HEIGHT FOR YUMA..........6000 FT AGL.
* TRANSPORT WIND FOR YUMA.........SOUTHEAST 16 KNOTS.
* DISPERSION FOR YUMA.............VERY GOOD.
EXTENDED
SATURDAY
PARTLY CLOUDY. LOWS 80-85. HIGHS 101-106. SOUTH WINDS
5 TO 15 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 80-85. HIGHS 102-107. SOUTH WINDS
5 TO 15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 80-85. HIGHS 102-107. SOUTH WINDS
10 TO 20 MPH.
TUESDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 80-85. HIGHS 102-107.
WEDNESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 81-86. HIGHS 103-108.
AZZ133-162030-
SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS-
SOUTHERN TONTO NF/WEST SAN CARLOS BIA/SOUTH PORTION FT APACHE BIA/
CAZ-
119 AM MST THU JUL 16 2026
TODAY
* SKY/WEATHER.....................PARTLY SUNNY. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE MORNING BECOMING CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.................82-97.
* 24 HR TREND..................3 DEGREES COOLER.
* MIN HUMIDITY....................34-50 PCT.
* 24 HR TREND..................10 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHEAST 5 TO 10 MPH IN THE
MORNING BECOMING SOUTHWEST IN THE AFTERNOON.
* WINDS...10000 FT MSL............SOUTHWEST 10 TO 15 MPH.
* CHANCE OF PRECIP................70 PERCENT.
* CWR (>= 0.10 IN)................50 PERCENT.
* CHANCE OF THUNDER...............59 PERCENT.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLOUDY IN THE EVENING
BECOMING PARTLY CLOUDY AFTER MIDNIGHT. CHANCE OF THUNDERSTORMS IN
THE EVENING. CHANCE OF SHOWERS . SLIGHT CHANCE OF THUNDERSTORMS
AFTER MIDNIGHT.
* MIN TEMPERATURE.................60-75.
* 24 HR TREND..................3 DEGREES COOLER.
* MAX HUMIDITY....................74-97 PCT.
* 24 HR TREND..................19 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHEAST 5 TO 10 MPH IN THE
EVENING BECOMING MOSTLY DOWNSLOPE/DOWNVALLEY AFTER MIDNIGHT.
* WINDS...10000 FT MSL............SOUTHWEST 5 TO 15 MPH IN THE
EVENING BECOMING LIGHT AND VARIABLE AFTER MIDNIGHT.
* CHANCE OF PRECIP................60 PERCENT.
* CWR (>= 0.10 IN)................60 PERCENT.
* CHANCE OF THUNDER...............60 PERCENT.
FRIDAY
* SKY/WEATHER.....................PARTLY SUNNY. CHANCE OF SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS IN THE MORNING BECOMING
SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.................76-89.
* 24 HR TREND..................7 DEGREES COOLER.
* MIN HUMIDITY....................50-71 PCT.
* 24 HR TREND..................18 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............WEST 10 TO 15 MPH.
* CHANCE OF PRECIP................70 PERCENT.
* CWR (>= 0.10 IN)................60 PERCENT.
* CHANCE OF THUNDER...............53 PERCENT.
EXTENDED
SATURDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 59-77. HIGHS 79-93. WEST WINDS 5 TO 15 MPH.
SUNDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS 59-77. HIGHS 81-95. WEST WINDS 5 TO
15 MPH.
MONDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS 60-77. HIGHS 81-95. NORTHWEST WINDS 5 TO 15 MPH.
TUESDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 60-79. HIGHS 82-96.
WEDNESDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 61-79. HIGHS 83-97.
CAZ232-162030-
IMPERIAL COUNTY AND EASTERN RIVERSIDE COUNTY-
119 AM PDT THU JUL 16 2026
TODAY
* SKY/WEATHER.....................MOSTLY SUNNY. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.................100-111.
* 24 HR TREND..................3 DEGREES COOLER.
* MIN HUMIDITY....................23-31 PCT.
* 24 HR TREND..................8 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTH 10 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT IN THE MORNING BECOMING
10 PERCENT IN THE AFTERNOON.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............10 PERCENT.
TONIGHT
* SKY/WEATHER.....................PARTLY CLOUDY. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS.
* MIN TEMPERATURE.................82-88.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................46-72 PCT.
* 24 HR TREND..................5 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............LIGHT AND VARIABLE.
* CHANCE OF PRECIP................10 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............10 PERCENT.
FRIDAY
* SKY/WEATHER.....................PARTLY SUNNY. SLIGHT CHANCE OF
SHOWERS IN THE MORNING.
* MAX TEMPERATURE.................97-107.
* 24 HR TREND..................4 DEGREES COOLER.
* 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............SOUTHWEST 5 TO 15 MPH.
* CHANCE OF PRECIP................10 PERCENT IN THE MORNING
BECOMING 0 PERCENT IN THE AFTERNOON.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............7 PERCENT.
EXTENDED
SATURDAY
MOSTLY CLEAR. LOWS 81-86. HIGHS 97-108. SOUTH WINDS
5 TO 15 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 81-87. HIGHS 98-109. SOUTH WINDS
5 TO 15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 80-87. HIGHS 98-109. SOUTH WINDS
5 TO 15 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 80-87. HIGHS 98-109.
WEDNESDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF SHOWERS. LOWS
81-87. HIGHS 99-109.
CAZ230-162030-
JOSHUA TREE NATIONAL PARK-
119 AM PDT THU JUL 16 2026
TODAY
* SKY/WEATHER.....................MOSTLY SUNNY. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.................91-104.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................24-31 PCT.
* 24 HR TREND..................8 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTH 10 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT IN THE MORNING BECOMING
10 PERCENT IN THE AFTERNOON.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............11 PERCENT.
TONIGHT
* SKY/WEATHER.....................PARTLY CLOUDY. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT.
* MIN TEMPERATURE.................72-84.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................45-59 PCT.
* 24 HR TREND..................12 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............LIGHT AND VARIABLE.
* CHANCE OF PRECIP................0 PERCENT IN THE EVENING BECOMING
10 PERCENT AFTER MIDNIGHT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............9 PERCENT.
FRIDAY
* SKY/WEATHER.....................PARTLY SUNNY. SLIGHT CHANCE OF
SHOWERS . SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.................86-100.
* 24 HR TREND..................4 DEGREES COOLER.
* MIN HUMIDITY....................28-37 PCT.
* 24 HR TREND..................5 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 5 TO 15 MPH.
* CHANCE OF PRECIP................20 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............11 PERCENT.
EXTENDED
SATURDAY
PARTLY CLOUDY. LOWS 70-83. HIGHS 88-101. SOUTHWEST
WINDS 5 TO 15 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 71-83. HIGHS 88-102. SOUTHWEST
WINDS 5 TO 15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 70-83. HIGHS 88-102. SOUTHWEST WINDS
5 TO 15 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 70-83. HIGHS 89-103.
WEDNESDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 72-84. HIGHS 89-103.
8 TO 10 DAY OUTLOOK
THURSDAY JULY 23RD THROUGH SATURDAY JULY
25TH: NEAR NORMAL TEMPERATURES AND ABOVE MEDIAN PRECIPITATION.
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