175
FNUS55 KPSR 282113
FWFPSR
FIRE WEATHER PLANNING FORECAST FOR SOUTHWEST AND SOUTH-CENTRAL
ARIZONA AND SOUTHEAST CALIFORNIA
NATIONAL WEATHER SERVICE PHOENIX AZ
213 PM MST SAT MAR 28 2026
DISCUSSION
UNSEASONABLY HOT TEMPERATURES WITH MOSTLY DRY CONDITIONS WILL
CONTINUE THIS WEEKEND. MINRH VALUES WILL INCREASE FROM 10-20%
TODAY UP TO 15-20% SUNDAY AND MONDAY, WHILE MAXRHS WILL ALSO
INCREASE FROM 20-40% TONIGHT TO 40-70% SUNDAY NIGHT. DUE TO THE
INCREASE IN LOW-LEVEL MOISTURE, THERE WILL BE AT SLIGHT CHANCE FOR
SHOWERS (10-30%) ACROSS SOUTHCENTRAL AZ SUNDAY AND MONDAY, BUT
THE CWR WILL REMAIN UNDER 10%. WINDS SHOULD TAPER OFF BELOW 15 MPH
BY LATE THIS AFTERNOON BUT WILL REMAIN OUT OF THE E-SE THROUGH
TONIGHT. SUNDAY WILL BRING LIGHTER WINDS OVERALL, BUT STILL SOME
AFTERNOON GUSTS UP TO 20 MPH.
..THUNDERSTORMS IMPLY GUSTY WINDS
NOTE...ADDITIONAL FIRE WEATHER FORECAST INFORMATION CAN BE FOUND
IN THE AREA FORECAST DISCUSSION. SEE PRODUCT PHXAFDPSR.
AZZ132-290915-
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-
213 PM MST SAT MAR 28 2026
TONIGHT
* SKY/WEATHER.....................PARTLY CLOUDY.
* MIN TEMPERATURE.................63-73.
* 24 HR TREND..................4 DEGREES COOLER.
* MAX HUMIDITY....................25-43 PCT.
* 24 HR TREND..................8 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 10 TO 20 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
SUNDAY
* SKY/WEATHER.....................PARTLY SUNNY.
* MAX TEMPERATURE.................93-98.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................13-22 PCT.
* 24 HR TREND..................6 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 5 TO 10 MPH IN THE MORNING
BECOMING SOUTHWEST 5 TO 15 MPH IN THE AFTERNOON.
* WINDS...10000 FT MSL............SOUTHWEST 10 TO 20 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............2 PERCENT.
* MIXING HEIGHT FOR PHOENIX.......8200 FT AGL.
* TRANSPORT WIND FOR PHOENIX......SOUTHWEST 9 KNOTS.
* DISPERSION FOR PHOENIX..........VERY GOOD.
SUNDAY NIGHT
* SKY/WEATHER.....................PARTLY CLOUDY.
* MIN TEMPERATURE.................64-74.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................50-73 PCT.
* 24 HR TREND..................28 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 10 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............4 PERCENT.
MONDAY
* SKY/WEATHER.....................PARTLY SUNNY. SLIGHT CHANCE OF
SHOWERS IN THE AFTERNOON.
* MAX TEMPERATURE.................90-96.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................14-23 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHEAST 5 TO 10 MPH IN THE
MORNING BECOMING SOUTHWEST 5 TO 15 MPH IN THE AFTERNOON.
* WINDS...10000 FT MSL............SOUTHWEST 15 TO 25 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............5 PERCENT.
* MIXING HEIGHT FOR PHOENIX.......9600 FT AGL.
* TRANSPORT WIND FOR PHOENIX......SOUTHWEST 15 KNOTS.
* DISPERSION FOR PHOENIX..........EXCELLENT.
EXTENDED
TUESDAY
PARTLY CLOUDY. LOWS 62-72. HIGHS 87-94. SOUTHWEST
WINDS 10 TO 20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
WEDNESDAY
PARTLY CLOUDY. LOWS 56-69. HIGHS 81-88. WEST WINDS
10 TO 20 MPH.
THURSDAY
PARTLY CLOUDY. LOWS 54-64. HIGHS 82-89. SOUTHWEST
WINDS 10 TO 20 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 52-62. HIGHS 81-88.
SATURDAY
MOSTLY CLEAR. LOWS 52-62. HIGHS 83-89.
AZZ131-CAZ231-290915-
YUMA/MARTINEZ LAKE AND VICINITY/LOWER COLORADO RIVER VALLEY AZ-
LOWER COLORADO RIVER VALLEY CA-
213 PM MST SAT MAR 28 2026 /213 PM PDT SAT MAR 28 2026/
TONIGHT
* SKY/WEATHER.....................PARTLY CLOUDY.
* MIN TEMPERATURE.................64-71.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................29-53 PCT.
* 24 HR TREND..................12 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHEAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 10 TO 20 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
SUNDAY
* SKY/WEATHER.....................PARTLY SUNNY.
* MAX TEMPERATURE.................95-100.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................15-26 PCT.
* 24 HR TREND..................10 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 10 TO 20 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............1 PERCENT.
* MIXING HEIGHT FOR YUMA..........3900 FT AGL.
* TRANSPORT WIND FOR YUMA.........SOUTH 15 KNOTS.
* DISPERSION FOR YUMA.............GOOD.
SUNDAY NIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................63-68.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................66-86 PCT.
* 24 HR TREND..................38 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 10 TO 20 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............1 PERCENT.
MONDAY
* SKY/WEATHER.....................PARTLY SUNNY.
* MAX TEMPERATURE.................93-98.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................11-22 PCT.
* 24 HR TREND..................4 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 20 TO 30 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............2 PERCENT.
* MIXING HEIGHT FOR YUMA..........5500 FT AGL.
* TRANSPORT WIND FOR YUMA.........SOUTH 9 KNOTS.
* DISPERSION FOR YUMA.............GOOD.
EXTENDED
TUESDAY
PARTLY CLOUDY. LOWS 63-68. HIGHS 90-95. SOUTHWEST
WINDS 10 TO 20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
WEDNESDAY
PARTLY CLOUDY. LOWS 57-68. HIGHS 85-90. WEST WINDS
15 TO 25 MPH.
THURSDAY
PARTLY CLOUDY. LOWS 55-62. HIGHS 85-90. SOUTHWEST
WINDS 15 TO 25 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 53-60. HIGHS 82-87.
SATURDAY
MOSTLY CLEAR. LOWS 53-60. HIGHS 84-89.
AZZ133-290915-
SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS-
SOUTHERN TONTO NF/WEST SAN CARLOS BIA/SOUTH PORTION FT APACHE BIA/
CAZ-
213 PM MST SAT MAR 28 2026
TONIGHT
* SKY/WEATHER.....................PARTLY CLOUDY.
* MIN TEMPERATURE.................48-64.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................31-51 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............WEST 10 TO 20 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
SUNDAY
* SKY/WEATHER.....................PARTLY SUNNY.
* MAX TEMPERATURE.................79-93.
* 24 HR TREND..................6 DEGREES WARMER.
* MIN HUMIDITY....................12-17 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 5 TO 10 MPH IN THE MORNING
BECOMING SOUTHWEST 5 TO 15 MPH IN THE AFTERNOON.
* WINDS...10000 FT MSL............WEST 10 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............1 PERCENT.
SUNDAY NIGHT
* SKY/WEATHER.....................PARTLY CLOUDY.
* MIN TEMPERATURE.................54-67.
* 24 HR TREND..................5 DEGREES WARMER.
* MAX HUMIDITY....................40-55 PCT.
* 24 HR TREND..................7 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH IN THE
EVENING BECOMING NORTHEAST 5 TO 10 MPH AFTER MIDNIGHT.
* WINDS...10000 FT MSL............WEST 10 TO 15 MPH.
* CHANCE OF PRECIP................10 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............2 PERCENT.
MONDAY
* SKY/WEATHER.....................PARTLY SUNNY. CHANCE OF SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.................76-90.
* 24 HR TREND..................3 DEGREES COOLER.
* MIN HUMIDITY....................20-30 PCT.
* 24 HR TREND..................10 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 15 TO 25 MPH.
* CHANCE OF PRECIP................0 PERCENT IN THE MORNING BECOMING
30 PERCENT IN THE AFTERNOON.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............14 PERCENT.
EXTENDED
TUESDAY
PARTLY CLOUDY. LOWS 50-65. HIGHS 72-88. SOUTHWEST
WINDS 15 TO 25 MPH.
WEDNESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS. LOWS
45-65. HIGHS 67-81. SOUTHWEST WINDS 15 TO 25 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 44-59. HIGHS 69-84. SOUTH WINDS
15 TO 25 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 41-57. HIGHS 69-83.
SATURDAY
MOSTLY CLEAR. LOWS 41-57. HIGHS 69-84.
CAZ232-290915-
IMPERIAL COUNTY AND EASTERN RIVERSIDE COUNTY-
213 PM PDT SAT MAR 28 2026
TONIGHT
* SKY/WEATHER.....................PARTLY CLOUDY.
* MIN TEMPERATURE.................67-73.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................19-48 PCT.
* 24 HR TREND..................8 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 10 TO 20 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
SUNDAY
* SKY/WEATHER.....................PARTLY SUNNY.
* MAX TEMPERATURE.................91-100.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................12-20 PCT.
* 24 HR TREND..................7 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHEAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 15 TO 25 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............1 PERCENT.
SUNDAY NIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................63-69.
* 24 HR TREND..................4 DEGREES COOLER.
* MAX HUMIDITY....................33-82 PCT.
* 24 HR TREND..................26 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 15 TO 25 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
MONDAY
* SKY/WEATHER.....................PARTLY SUNNY.
* MAX TEMPERATURE.................88-97.
* 24 HR TREND..................3 DEGREES COOLER.
* MIN HUMIDITY....................9-16 PCT.
* 24 HR TREND..................4 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* 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
TUESDAY
MOSTLY CLOUDY. LOWS 63-71. HIGHS 84-94. WEST WINDS
15 TO 25 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
WEDNESDAY
PARTLY CLOUDY. LOWS 58-69. HIGHS 80-90. WEST WINDS
15 TO 25 MPH.
THURSDAY
PARTLY CLOUDY. LOWS 57-64. HIGHS 79-88. WEST WINDS
15 TO 25 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 56-62. HIGHS 78-87.
SATURDAY
MOSTLY CLEAR. LOWS 56-64. HIGHS 79-88.
CAZ230-290915-
JOSHUA TREE NATIONAL PARK-
213 PM PDT SAT MAR 28 2026
TONIGHT
* SKY/WEATHER.....................PARTLY CLOUDY.
* MIN TEMPERATURE.................61-70.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................16-22 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 20 TO 30 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
SUNDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................82-96.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................10-14 PCT.
* 24 HR TREND..................4 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 20 TO 30 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
SUNDAY NIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................55-65.
* 24 HR TREND..................5 DEGREES COOLER.
* MAX HUMIDITY....................19-33 PCT.
* 24 HR TREND..................7 PCT WETTER.
* 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.
* CHANCE OF THUNDER...............0 PERCENT.
MONDAY
* SKY/WEATHER.....................PARTLY SUNNY.
* MAX TEMPERATURE.................77-92.
* 24 HR TREND..................4 DEGREES COOLER.
* MIN HUMIDITY....................8-12 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 10 MPH IN THE
MORNING BECOMING 10 TO 20 MPH IN THE AFTERNOON.
* 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
TUESDAY
MOSTLY CLOUDY. LOWS 50-66. HIGHS 73-87. WEST WINDS
15 TO 25 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 46-63. HIGHS 68-83. WEST WINDS
15 TO 25 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 45-58. HIGHS 67-83. WEST WINDS
15 TO 25 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 45-57. HIGHS 66-79.
SATURDAY
CLEAR. LOWS 45-58. HIGHS 68-81.
8 TO 10 DAY OUTLOOK
SUNDAY APRIL 5TH THROUGH TUESDAY APRIL 7TH:
ABOVE NORMAL TEMPERATURES AND NEAR MEDIAN PRECIPITATION.
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