169
FNUS55 KPSR 311932
FWFPSR
FIRE WEATHER PLANNING FORECAST FOR SOUTHWEST AND SOUTH-CENTRAL
ARIZONA AND SOUTHEAST CALIFORNIA
NATIONAL WEATHER SERVICE PHOENIX AZ
1232 PM MST TUE MAR 31 2026
DISCUSSION
CHANCES FOR SHOWERS AND A FEW ISOLATED STORMS WILL CONTINUE
THROUGH WEDNESDAY MORNING, THOUGH ONLY ISOLATED INSTANCES OF
WETTING RAINFALL ARE EXPECTED. THE WEATHER SYSTEM RESPONSIBLE FOR THE
INCREASED RAIN CHANCES WILL PROMOTE BREEZY CONDITIONS THIS
AFTERNOON WITH LINGERING BREEZINESS WEDNESDAY. GUSTS THROUGH
TOMORROW WILL CLIMB UPWARDS OF 20-25 MPH FOR MANY AREAS, WHILE
THE STRONGEST WINDS WILL OCCUR ACROSS PARTS OF SOUTHEAST
CALIFORNIA WHERE A FEW ISOLATED GUSTS IN EXCESS OF 40 MPH WILL BE
POSSIBLE. MIN RHS IN THE 15-25% RANGE WILL BE COMMON, WHILE
OVERNIGHT MAX RHS WILL RANGE BETWEEN 40-70%
NOTE...ADDITIONAL FIRE WEATHER FORECAST INFORMATION CAN BE FOUND
IN THE AREA FORECAST DISCUSSION. SEE PRODUCT PHXAFDPSR.
AZZ132-010745-
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-
1232 PM MST TUE MAR 31 2026
TONIGHT
* SKY/WEATHER.....................MOSTLY CLOUDY.
* MIN TEMPERATURE.................62-72.
* 24 HR TREND..................6 DEGREES COOLER.
* MAX HUMIDITY....................44-65 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 30 TO 40 MPH.
* CHANCE OF PRECIP................10 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............1 PERCENT.
WEDNESDAY
* SKY/WEATHER.....................PARTLY SUNNY IN THE MORNING
BECOMING SUNNY IN THE AFTERNOON.
* MAX TEMPERATURE.................79-86.
* 24 HR TREND..................7 DEGREES COOLER.
* MIN HUMIDITY....................17-22 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............WEST 30 TO 40 MPH IN THE MORNING
BECOMING 15 TO 25 MPH IN THE AFTERNOON.
* CHANCE OF PRECIP................10 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
* MIXING HEIGHT FOR PHOENIX.......9300 FT AGL.
* TRANSPORT WIND FOR PHOENIX......WEST 16 KNOTS.
* DISPERSION FOR PHOENIX..........EXCELLENT.
WEDNESDAY NIGHT
* SKY/WEATHER.....................CLEAR.
* MIN TEMPERATURE.................54-64.
* 24 HR TREND..................9 DEGREES COOLER.
* MAX HUMIDITY....................44-60 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............WEST 20 TO 30 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
THURSDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................80-87.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................15-20 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............WEST 20 TO 30 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
* MIXING HEIGHT FOR PHOENIX.......8300 FT AGL.
* TRANSPORT WIND FOR PHOENIX......SOUTHWEST 16 KNOTS.
* DISPERSION FOR PHOENIX..........EXCELLENT.
EXTENDED
FRIDAY
MOSTLY CLEAR. LOWS 53-63. HIGHS 82-88. NORTHWEST WINDS
5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
SATURDAY
MOSTLY CLEAR. LOWS 56-66. HIGHS 86-92. NORTH WINDS
5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
SUNDAY
MOSTLY CLEAR. LOWS 58-69. HIGHS 89-96. EAST WINDS 10 TO
20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
MONDAY
PARTLY CLOUDY. LOWS 60-70. HIGHS 88-95.
TUESDAY
MOSTLY CLEAR. LOWS 58-68. HIGHS 90-96.
AZZ131-CAZ231-010745-
YUMA/MARTINEZ LAKE AND VICINITY/LOWER COLORADO RIVER VALLEY AZ-
LOWER COLORADO RIVER VALLEY CA-
1232 PM MST TUE MAR 31 2026 /1232 PM PDT TUE MAR 31 2026/
TONIGHT
* SKY/WEATHER.....................MOSTLY CLOUDY.
* MIN TEMPERATURE.................64-69.
* 24 HR TREND..................6 DEGREES COOLER.
* MAX HUMIDITY....................49-65 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 30 TO 40 MPH.
* CHANCE OF PRECIP................10 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............1 PERCENT.
WEDNESDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................83-88.
* 24 HR TREND..................6 DEGREES COOLER.
* MIN HUMIDITY....................18-22 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 10 TO 20 MPH.
* WINDS...10000 FT MSL............WEST 25 TO 35 MPH IN THE MORNING
BECOMING 15 TO 25 MPH IN THE AFTERNOON.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
* MIXING HEIGHT FOR YUMA..........8300 FT AGL.
* TRANSPORT WIND FOR YUMA.........WEST 16 KNOTS.
* DISPERSION FOR YUMA.............EXCELLENT.
WEDNESDAY NIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................54-59.
* 24 HR TREND..................10 DEGREES COOLER.
* MAX HUMIDITY....................53-74 PCT.
* 24 HR TREND..................8 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............WEST 20 TO 30 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
THURSDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................83-88.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................18-22 PCT.
* 24 HR TREND..................LITTLE CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............WEST 20 TO 30 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
* MIXING HEIGHT FOR YUMA..........6600 FT AGL.
* TRANSPORT WIND FOR YUMA.........WEST 15 KNOTS.
* DISPERSION FOR YUMA.............VERY GOOD.
EXTENDED
FRIDAY
MOSTLY CLEAR. LOWS 55-61. HIGHS 83-88. NORTH WINDS
15 TO 25 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
SATURDAY
MOSTLY CLEAR. LOWS 54-62. HIGHS 88-93. NORTH WINDS
10 TO 20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
SUNDAY
MOSTLY CLEAR. LOWS 54-66. HIGHS 92-97. NORTHWEST WINDS
5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
MONDAY
PARTLY CLOUDY. LOWS 58-66. HIGHS 91-96.
TUESDAY
MOSTLY CLEAR. LOWS 58-64. HIGHS 93-98.
AZZ133-010745-
SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS-
SOUTHERN TONTO NF/WEST SAN CARLOS BIA/SOUTH PORTION FT APACHE BIA/
CAZ-
1232 PM MST TUE MAR 31 2026
TONIGHT
* SKY/WEATHER.....................PARTLY CLOUDY IN THE EVENING
BECOMING MOSTLY CLOUDY AFTER MIDNIGHT. SLIGHT CHANCE OF SHOWERS
AFTER MIDNIGHT.
* MIN TEMPERATURE.................46-60.
* 24 HR TREND..................8 DEGREES COOLER.
* MAX HUMIDITY....................62-86 PCT.
* 24 HR TREND..................12 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 30 TO 40 MPH.
* CHANCE OF PRECIP................10 PERCENT IN THE EVENING
BECOMING 50 PERCENT AFTER MIDNIGHT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............5 PERCENT.
WEDNESDAY
* SKY/WEATHER.....................MOSTLY CLOUDY IN THE MORNING
BECOMING MOSTLY SUNNY IN THE AFTERNOON. CHANCE OF SHOWERS IN THE
MORNING.
* MAX TEMPERATURE.................62-78.
* 24 HR TREND..................11 DEGREES COOLER.
* MIN HUMIDITY....................22-35 PCT.
* 24 HR TREND..................4 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............WEST 35 TO 45 MPH IN THE MORNING
BECOMING 20 TO 30 MPH IN THE AFTERNOON.
* CHANCE OF PRECIP................50 PERCENT IN THE MORNING
BECOMING 0 PERCENT IN THE AFTERNOON.
* CWR (>= 0.10 IN)................20 PERCENT.
* CHANCE OF THUNDER...............5 PERCENT.
WEDNESDAY NIGHT
* SKY/WEATHER.....................CLEAR.
* MIN TEMPERATURE.................41-56.
* 24 HR TREND..................4 DEGREES COOLER.
* MAX HUMIDITY....................45-67 PCT.
* 24 HR TREND..................19 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 10 MPH IN THE
EVENING BECOMING SOUTH AFTER MIDNIGHT.
* WINDS...10000 FT MSL............SOUTHWEST 20 TO 30 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............1 PERCENT.
THURSDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................67-82.
* 24 HR TREND..................4 DEGREES WARMER.
* MIN HUMIDITY....................17-25 PCT.
* 24 HR TREND..................8 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 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.
* CHANCE OF THUNDER...............0 PERCENT.
EXTENDED
FRIDAY
MOSTLY CLEAR. LOWS 42-59. HIGHS 69-84. NORTH WINDS
10 TO 20 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 43-63. HIGHS 72-87. EAST WINDS
10 TO 20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
SUNDAY
MOSTLY CLEAR. LOWS 47-64. HIGHS 72-89. EAST WINDS 15 TO
25 MPH.
MONDAY
PARTLY CLOUDY. LOWS 47-64. HIGHS 72-89.
TUESDAY
MOSTLY CLEAR. LOWS 47-63. HIGHS 74-90.
CAZ232-010745-
IMPERIAL COUNTY AND EASTERN RIVERSIDE COUNTY-
1232 PM PDT TUE MAR 31 2026
TONIGHT
* SKY/WEATHER.....................MOSTLY CLOUDY.
* MIN TEMPERATURE.................60-68.
* 24 HR TREND..................7 DEGREES COOLER.
* MAX HUMIDITY....................46-62 PCT.
* 24 HR TREND..................8 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 10 TO 20 MPH.
* WINDS...10000 FT MSL............WEST 35 TO 45 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............1 PERCENT.
WEDNESDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................77-86.
* 24 HR TREND..................5 DEGREES COOLER.
* MIN HUMIDITY....................17-26 PCT.
* 24 HR TREND..................4 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 10 TO 20 MPH.
* WINDS...10000 FT MSL............WEST 25 TO 35 MPH IN THE MORNING
BECOMING 15 TO 25 MPH IN THE AFTERNOON.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
WEDNESDAY NIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................54-61.
* 24 HR TREND..................7 DEGREES COOLER.
* MAX HUMIDITY....................47-66 PCT.
* 24 HR TREND..................3 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 10 TO 20 MPH.
* WINDS...10000 FT MSL............WEST 20 TO 30 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
THURSDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................77-87.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................17-26 PCT.
* 24 HR TREND..................LITTLE CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............WEST 25 TO 35 MPH IN THE MORNING
BECOMING 15 TO 25 MPH IN THE AFTERNOON.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
EXTENDED
FRIDAY
BREEZY. MOSTLY CLEAR. LOWS 56-65. HIGHS 77-86. NORTH
WINDS 20 TO 30 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
SATURDAY
MOSTLY CLEAR. LOWS 58-66. HIGHS 82-91. NORTH WINDS
15 TO 25 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
SUNDAY
MOSTLY CLEAR. LOWS 58-68. HIGHS 87-95. NORTHWEST WINDS
5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
MONDAY
PARTLY CLOUDY. LOWS 60-68. HIGHS 86-95.
TUESDAY
MOSTLY CLEAR. LOWS 60-67. HIGHS 88-97.
CAZ230-010745-
JOSHUA TREE NATIONAL PARK-
1232 PM PDT TUE MAR 31 2026
TONIGHT
* SKY/WEATHER.....................MOSTLY CLOUDY.
* MIN TEMPERATURE.................46-61.
* 24 HR TREND..................12 DEGREES COOLER.
* MAX HUMIDITY....................52-79 PCT.
* 24 HR TREND..................38 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 10 TO 20 MPH.
* WINDS...10000 FT MSL............WEST 25 TO 35 MPH IN THE EVENING
BECOMING 35 TO 45 MPH AFTER MIDNIGHT.
* CHANCE OF PRECIP................10 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............1 PERCENT.
WEDNESDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................65-80.
* 24 HR TREND..................5 DEGREES COOLER.
* MIN HUMIDITY....................18-34 PCT.
* 24 HR TREND..................13 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............WEST 20 TO 30 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
WEDNESDAY NIGHT
* SKY/WEATHER.....................CLEAR.
* MIN TEMPERATURE.................43-55.
* 24 HR TREND..................4 DEGREES COOLER.
* MAX HUMIDITY....................49-73 PCT.
* 24 HR TREND..................3 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 10 TO 20 MPH.
* WINDS...10000 FT MSL............WEST 20 TO 30 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
THURSDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................67-82.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................17-32 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............WEST 15 TO 25 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
EXTENDED
FRIDAY
BREEZY. MOSTLY CLEAR. LOWS 44-58. HIGHS 65-79. NORTH
WINDS 20 TO 30 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
SATURDAY
MOSTLY CLEAR. LOWS 48-60. HIGHS 71-84. NORTH WINDS
15 TO 25 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
SUNDAY
MOSTLY CLEAR. LOWS 50-64. HIGHS 76-89. NORTHWEST WINDS
5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
MONDAY
PARTLY CLOUDY. LOWS 52-64. HIGHS 74-89.
TUESDAY
CLEAR. LOWS 50-62. HIGHS 77-91.
8 TO 10 DAY OUTLOOK
WEDNESDAY APRIL 8TH THROUGH FRIDAY APRIL 10TH:
ABOVE NORMAL TEMPERATURES AND NEAR MEDIAN PRECIPITATION.
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