887
FNUS55 KPSR 110721
FWFPSR
FIRE WEATHER PLANNING FORECAST FOR SOUTHWEST AND SOUTH-CENTRAL
ARIZONA AND SOUTHEAST CALIFORNIA
NATIONAL WEATHER SERVICE PHOENIX AZ
1221 AM MST SAT APR 11 2026
DISCUSSION
A MORE UNSETTLED WEATHER PATTERN THIS WEEKEND THROUGH EARLY NEXT
WEEK WILL RESULT IN NEAR TO BELOW NORMAL TEMPERATURES AND SLIGHTLY
IMPROVED HUMIDITIES. MINRHS THIS WEEKEND WILL MOSTLY AVERAGE
15-25%, WHILE OVERNIGHT RECOVERIES IMPROVE INTO A FAIR TO GOOD
RANGE (40-70%). WINDS WILL SOMEWHAT FOLLOW DIURNAL PATTERNS, BUT
WITH MORE OF A PREDOMINANT SOUTHWESTERLY DIRECTION AS WINDS
INCREASE AREAWIDE. EXPECT LATE AFTERNOON/EARLY EVENING ENHANCED
GUSTS OF 25-35 MPH OVER MUCH OF THE AREA TODAY THROUGH MONDAY.
NOTE...ADDITIONAL FIRE WEATHER FORECAST INFORMATION CAN BE FOUND
IN THE AREA FORECAST DISCUSSION. SEE PRODUCT PHXAFDPSR.
AZZ132-111930-
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-
1221 AM MST SAT APR 11 2026
TODAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................81-88.
* 24 HR TREND..................5 DEGREES COOLER.
* MIN HUMIDITY....................15-19 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 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.
* MIXING HEIGHT FOR PHOENIX.......10500 FT AGL.
* TRANSPORT WIND FOR PHOENIX......SOUTHWEST 14 KNOTS.
* DISPERSION FOR PHOENIX..........EXCELLENT.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................54-64.
* 24 HR TREND..................4 DEGREES COOLER.
* MAX HUMIDITY....................40-55 PCT.
* 24 HR TREND..................5 PCT DRIER.
* 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.
SUNDAY
* SKY/WEATHER.....................PARTLY SUNNY.
* MAX TEMPERATURE.................76-84.
* 24 HR TREND..................4 DEGREES COOLER.
* MIN HUMIDITY....................17-21 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 10 TO 20 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.
* MIXING HEIGHT FOR PHOENIX.......7100 FT AGL.
* TRANSPORT WIND FOR PHOENIX......SOUTHWEST 12 KNOTS.
* DISPERSION FOR PHOENIX..........VERY GOOD.
EXTENDED
MONDAY
PARTLY CLOUDY. LOWS 48-60. HIGHS 72-80. WEST WINDS
10 TO 20 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 48-58. HIGHS 75-81. WEST WINDS 5 TO
15 MPH.
WEDNESDAY
CLEAR. LOWS 49-60. HIGHS 81-87. SOUTHWEST WINDS 5 TO
10 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
THURSDAY
PARTLY CLOUDY. LOWS 52-62. HIGHS 82-88.
FRIDAY
MOSTLY CLEAR. LOWS 52-62. HIGHS 83-89.
AZZ131-CAZ231-111930-
YUMA/MARTINEZ LAKE AND VICINITY/LOWER COLORADO RIVER VALLEY AZ-
LOWER COLORADO RIVER VALLEY CA-
1221 AM MST SAT APR 11 2026 /1221 AM PDT SAT APR 11 2026/
TODAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................82-87.
* 24 HR TREND..................5 DEGREES COOLER.
* MIN HUMIDITY....................16-21 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 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.
* MIXING HEIGHT FOR YUMA..........10300 FT AGL.
* TRANSPORT WIND FOR YUMA.........SOUTHWEST 11 KNOTS.
* DISPERSION FOR YUMA.............EXCELLENT.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................54-59.
* 24 HR TREND..................3 DEGREES COOLER.
* MAX HUMIDITY....................50-66 PCT.
* 24 HR TREND..................8 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 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.
SUNDAY
* SKY/WEATHER.....................PARTLY SUNNY.
* MAX TEMPERATURE.................78-83.
* 24 HR TREND..................4 DEGREES COOLER.
* MIN HUMIDITY....................19-25 PCT.
* 24 HR TREND..................4 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 10 TO 20 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 30 TO 40 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
* MIXING HEIGHT FOR YUMA..........9200 FT AGL.
* TRANSPORT WIND FOR YUMA.........SOUTHWEST 14 KNOTS.
* DISPERSION FOR YUMA.............EXCELLENT.
EXTENDED
MONDAY
MOSTLY CLEAR. LOWS 48-58. HIGHS 74-79. WEST WINDS 15 TO
25 MPH.
TUESDAY
CLEAR. LOWS 48-56. HIGHS 78-83. WEST WINDS 5 TO
15 MPH.
WEDNESDAY
CLEAR. LOWS 49-60. HIGHS 84-89. SOUTHWEST WINDS 5 TO
15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
THURSDAY
PARTLY CLOUDY. LOWS 52-60. HIGHS 84-89.
FRIDAY
MOSTLY CLEAR. LOWS 52-60. HIGHS 85-90.
AZZ133-111930-
SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS-
SOUTHERN TONTO NF/WEST SAN CARLOS BIA/SOUTH PORTION FT APACHE BIA/
CAZ-
1221 AM MST SAT APR 11 2026
TODAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................70-85.
* 24 HR TREND..................4 DEGREES COOLER.
* MIN HUMIDITY....................17-24 PCT.
* 24 HR TREND..................6 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 10 TO 20 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 20 TO 30 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............3 PERCENT.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................44-58.
* 24 HR TREND..................4 DEGREES COOLER.
* MAX HUMIDITY....................43-60 PCT.
* 24 HR TREND..................3 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH IN THE
EVENING BECOMING SOUTH 5 TO 10 MPH 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.
SUNDAY
* SKY/WEATHER.....................PARTLY SUNNY.
* MAX TEMPERATURE.................68-82.
* 24 HR TREND..................3 DEGREES COOLER.
* MIN HUMIDITY....................13-21 PCT.
* 24 HR TREND..................5 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH IN THE MORNING
BECOMING SOUTHWEST 15 TO 25 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
MONDAY
BREEZY. PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS.
LOWS 39-57. HIGHS 63-76. SOUTHWEST WINDS 20 TO 30 MPH.
TUESDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF SHOWERS. LOWS
37-53. HIGHS 62-76. SOUTHWEST WINDS 10 TO 20 MPH.
WEDNESDAY
CLEAR. LOWS 37-55. HIGHS 68-82. NORTHWEST WINDS 5 TO
15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
THURSDAY
MOSTLY CLEAR. LOWS 40-57. HIGHS 69-83.
FRIDAY
MOSTLY CLEAR. LOWS 41-57. HIGHS 70-84.
CAZ232-111930-
IMPERIAL COUNTY AND EASTERN RIVERSIDE COUNTY-
1221 AM PDT SAT APR 11 2026
TODAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................77-87.
* 24 HR TREND..................5 DEGREES COOLER.
* MIN HUMIDITY....................15-25 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 10 TO 20 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.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................54-61.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................47-64 PCT.
* 24 HR TREND..................6 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 10 TO 20 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 20 TO 30 MPH IN THE
EVENING BECOMING 30 TO 40 MPH AFTER MIDNIGHT.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
SUNDAY
* SKY/WEATHER.....................PARTLY SUNNY.
* MAX TEMPERATURE.................72-81.
* 24 HR TREND..................5 DEGREES COOLER.
* MIN HUMIDITY....................21-35 PCT.
* 24 HR TREND..................8 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 15 TO 25 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 35 TO 45 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
EXTENDED
MONDAY
MOSTLY CLEAR. LOWS 49-60. HIGHS 68-78. WEST WINDS 15 TO
25 MPH.
TUESDAY
CLEAR. LOWS 49-59. HIGHS 74-82. WEST WINDS 5 TO
15 MPH.
WEDNESDAY
CLEAR. LOWS 52-62. HIGHS 79-89. WEST WINDS 5 TO
15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
THURSDAY
PARTLY CLOUDY. LOWS 55-62. HIGHS 79-88.
FRIDAY
CLEAR. LOWS 55-65. HIGHS 81-90.
CAZ230-111930-
JOSHUA TREE NATIONAL PARK-
1221 AM PDT SAT APR 11 2026
TODAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................64-80.
* 24 HR TREND..................5 DEGREES COOLER.
* MIN HUMIDITY....................17-31 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 10 TO 20 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.
TONIGHT
* SKY/WEATHER.....................CLEAR IN THE EVENING BECOMING
PARTLY CLOUDY AFTER MIDNIGHT.
* MIN TEMPERATURE.................41-53.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................52-82 PCT.
* 24 HR TREND..................6 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 10 TO 20 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 20 TO 30 MPH IN THE
EVENING BECOMING 30 TO 40 MPH AFTER MIDNIGHT.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
SUNDAY
* SKY/WEATHER.....................PARTLY SUNNY. SLIGHT CHANCE OF
SHOWERS IN THE AFTERNOON.
* MAX TEMPERATURE.................58-75.
* 24 HR TREND..................6 DEGREES COOLER.
* MIN HUMIDITY....................26-49 PCT.
* 24 HR TREND..................13 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 15 TO 25 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 30 TO 40 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............1 PERCENT.
EXTENDED
MONDAY
MOSTLY CLEAR. LOWS 37-51. HIGHS 57-72. WEST WINDS 15 TO
25 MPH.
TUESDAY
CLEAR. LOWS 37-53. HIGHS 64-77. NORTHWEST WINDS 5 TO
15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
WEDNESDAY
CLEAR. LOWS 43-57. HIGHS 69-83. WEST WINDS 5 TO
15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
THURSDAY
PARTLY CLOUDY. LOWS 46-57. HIGHS 68-83.
FRIDAY
CLEAR. LOWS 46-59. HIGHS 71-84.
8 TO 10 DAY OUTLOOK
SATURDAY APRIL 18TH THROUGH MONDAY APRIL
20TH: NEAR TO ABOVE NORMAL TEMPERATURES AND NEAR MEDIAN
PRECIPITATION.
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