849
FNUS55 KPSR 192103
FWFPSR
FIRE WEATHER PLANNING FORECAST FOR SOUTHWEST AND SOUTH-CENTRAL
ARIZONA AND SOUTHEAST CALIFORNIA
NATIONAL WEATHER SERVICE PHOENIX AZ
203 PM MST SUN APR 19 2026
DISCUSSION
ELEVATED FIRE WEATHER CONDITIONS WILL STILL BE POSSIBLE ACROSS
SOUTH-CENTRAL AZ MIDDAY THROUGH THIS AFTERNOON, IMPROVING BY THE
EVENING HOURS. MUCH LIGHTER WINDS ARE ANTICIPATED ON MONDAY.
ABOVE NORMAL TEMPERATURES WILL CONTRIBUTE TO AFTERNOON MINRHS
BOTTOMING OUT AROUND 10-15% EACH AFTERNOON. OVERNIGHT RECOVERIES
WILL RANGE FROM POOR TO FAIR OR GENERALLY BETWEEN 30-50% OVER THE
NEXT COUPLE NIGHTS. ELEVATED FIRE WEATHER CONDITIONS WILL RETURN
TUESDAY AFTERNOON WHERE WIDESPREAD BREEZY TO WINDY CONDITIONS WILL
DEVELOP.
NOTE...ADDITIONAL FIRE WEATHER FORECAST INFORMATION CAN BE FOUND
IN THE AREA FORECAST DISCUSSION. SEE PRODUCT PHXAFDPSR.
AZZ132-200915-
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-
203 PM MST SUN APR 19 2026
TONIGHT
* SKY/WEATHER.....................PARTLY CLOUDY.
* MIN TEMPERATURE.................59-69.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................22-36 PCT.
* 24 HR TREND..................11 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHEAST 15 TO 25 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
MONDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................88-94.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................10-14 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHEAST 5 TO 10 MPH IN THE
MORNING BECOMING SOUTH 5 TO 15 MPH IN THE AFTERNOON.
* WINDS...10000 FT MSL............SOUTH 15 TO 25 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
* MIXING HEIGHT FOR PHOENIX.......11600 FT AGL.
* TRANSPORT WIND FOR PHOENIX......SOUTHWEST 5 KNOTS.
* DISPERSION FOR PHOENIX..........GOOD.
MONDAY NIGHT
* SKY/WEATHER.....................PARTLY CLOUDY.
* MIN TEMPERATURE.................58-68.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................25-38 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 10 MPH IN THE
EVENING BECOMING SOUTHEAST AFTER MIDNIGHT.
* WINDS...10000 FT MSL............SOUTH 15 TO 25 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
TUESDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................87-95.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................9-13 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............SOUTH 20 TO 30 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
* MIXING HEIGHT FOR PHOENIX.......12200 FT AGL.
* TRANSPORT WIND FOR PHOENIX......SOUTHWEST 18 KNOTS.
* DISPERSION FOR PHOENIX..........EXCELLENT.
EXTENDED
WEDNESDAY
MOSTLY CLEAR. LOWS 52-62. HIGHS 79-87. WEST WINDS
5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
THURSDAY
MOSTLY CLEAR. LOWS 52-62. HIGHS 82-89. WEST WINDS
5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
FRIDAY
MOSTLY CLEAR. LOWS 55-65. HIGHS 84-90. SOUTHWEST WINDS
5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
SATURDAY
MOSTLY CLEAR. LOWS 54-64. HIGHS 81-88.
SUNDAY
MOSTLY CLEAR. LOWS 53-63. HIGHS 79-86.
AZZ131-CAZ231-200915-
YUMA/MARTINEZ LAKE AND VICINITY/LOWER COLORADO RIVER VALLEY AZ-
LOWER COLORADO RIVER VALLEY CA-
203 PM MST SUN APR 19 2026 /203 PM PDT SUN APR 19 2026/
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................57-63.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................31-53 PCT.
* 24 HR TREND..................19 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHEAST 15 TO 25 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
MONDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................90-95.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................11-15 PCT.
* 24 HR TREND..................5 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTH 10 TO 20 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
* MIXING HEIGHT FOR YUMA..........7500 FT AGL.
* TRANSPORT WIND FOR YUMA.........SOUTH 14 KNOTS.
* DISPERSION FOR YUMA.............EXCELLENT.
MONDAY NIGHT
* SKY/WEATHER.....................PARTLY CLOUDY.
* MIN TEMPERATURE.................58-63.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................30-52 PCT.
* 24 HR TREND..................LITTLE CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTH 15 TO 25 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
TUESDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................88-93.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................9-13 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* 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.
* MIXING HEIGHT FOR YUMA..........9100 FT AGL.
* TRANSPORT WIND FOR YUMA.........SOUTHWEST 9 KNOTS.
* DISPERSION FOR YUMA.............GOOD.
EXTENDED
WEDNESDAY
MOSTLY CLEAR. LOWS 52-62. HIGHS 80-85. WEST WINDS
10 TO 20 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 52-61. HIGHS 84-89. WEST WINDS
5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
FRIDAY
MOSTLY CLEAR. LOWS 55-61. HIGHS 86-91. SOUTHWEST WINDS
10 TO 20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
SATURDAY
MOSTLY CLEAR. LOWS 54-59. HIGHS 83-88.
SUNDAY
MOSTLY CLEAR. LOWS 53-59. HIGHS 81-86.
AZZ133-200915-
SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS-
SOUTHERN TONTO NF/WEST SAN CARLOS BIA/SOUTH PORTION FT APACHE BIA/
CAZ-
203 PM MST SUN APR 19 2026
TONIGHT
* SKY/WEATHER.....................PARTLY CLOUDY.
* MIN TEMPERATURE.................50-65.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................36-61 PCT.
* 24 HR TREND..................25 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTH 10 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............1 PERCENT.
MONDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................75-90.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................12-20 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............SOUTH 10 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............3 PERCENT.
MONDAY NIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................48-63.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................33-50 PCT.
* 24 HR TREND..................8 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 10 MPH IN THE EVENING
BECOMING EAST AFTER MIDNIGHT.
* 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.
TUESDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................75-90.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................10-16 PCT.
* 24 HR TREND..................3 PCT DRIER.
* 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...............0 PERCENT.
EXTENDED
WEDNESDAY
MOSTLY CLEAR. LOWS 42-57. HIGHS 70-83. SOUTHWEST
WINDS 15 TO 25 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 42-58. HIGHS 69-83. SOUTHWEST
WINDS 10 TO 20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
FRIDAY
MOSTLY CLEAR. LOWS 43-58. HIGHS 71-86. SOUTHWEST WINDS
10 TO 20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
SATURDAY
MOSTLY CLEAR. LOWS 44-58. HIGHS 69-84.
SUNDAY
MOSTLY CLEAR. LOWS 41-57. HIGHS 68-82.
CAZ232-200915-
IMPERIAL COUNTY AND EASTERN RIVERSIDE COUNTY-
203 PM PDT SUN APR 19 2026
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................59-65.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................27-51 PCT.
* 24 HR TREND..................14 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHEAST 15 TO 25 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
MONDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................85-94.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................11-16 PCT.
* 24 HR TREND..................5 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHEAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTH 10 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
MONDAY NIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................58-64.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................25-49 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTH 15 TO 25 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
TUESDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................82-92.
* 24 HR TREND..................3 DEGREES COOLER.
* MIN HUMIDITY....................8-13 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............SOUTHWEST 25 TO 35 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
EXTENDED
WEDNESDAY
MOSTLY CLEAR. LOWS 54-62. HIGHS 76-85. WEST WINDS
10 TO 20 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 54-63. HIGHS 79-89. WEST WINDS
10 TO 20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
FRIDAY
MOSTLY CLEAR. LOWS 57-63. HIGHS 80-89. WEST WINDS 15 TO
25 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
SATURDAY
MOSTLY CLEAR. LOWS 55-63. HIGHS 78-87.
SUNDAY
MOSTLY CLEAR. LOWS 55-61. HIGHS 76-84.
CAZ230-200915-
JOSHUA TREE NATIONAL PARK-
203 PM PDT SUN APR 19 2026
TONIGHT
* SKY/WEATHER.....................CLEAR.
* MIN TEMPERATURE.................52-61.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................28-35 PCT.
* 24 HR TREND..................14 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTH 15 TO 25 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
MONDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................74-88.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................10-16 PCT.
* 24 HR TREND..................5 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTH 10 TO 20 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
MONDAY NIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................48-60.
* 24 HR TREND..................3 DEGREES COOLER.
* MAX HUMIDITY....................24-32 PCT.
* 24 HR TREND..................4 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 10 TO 20 MPH IN THE
EVENING BECOMING SOUTH 20 TO 30 MPH AFTER MIDNIGHT.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
TUESDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................70-86.
* 24 HR TREND..................3 DEGREES COOLER.
* MIN HUMIDITY....................10-15 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............SOUTHWEST 25 TO 35 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
EXTENDED
WEDNESDAY
MOSTLY CLEAR. LOWS 41-54. HIGHS 64-79. WEST WINDS
10 TO 20 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 42-59. HIGHS 69-82. WEST WINDS
5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
FRIDAY
MOSTLY CLEAR. LOWS 46-59. HIGHS 69-84. WEST WINDS 10 TO
20 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 44-58. HIGHS 66-82.
SUNDAY
MOSTLY CLEAR. LOWS 44-56. HIGHS 64-79.
8 TO 10 DAY OUTLOOK
MONDAY APRIL 27TH THROUGH WEDNESDAY APRIL
29TH:
NEAR NORMAL TEMPERATURES AND ABOVE MEDIAN PRECIPITATION.
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