196
FNUS55 KPSR 270720
FWFPSR
FIRE WEATHER PLANNING FORECAST FOR SOUTHWEST AND SOUTH-CENTRAL
ARIZONA AND SOUTHEAST CALIFORNIA
NATIONAL WEATHER SERVICE PHOENIX AZ
1220 AM MST MON APR 27 2026
DISCUSSION
DRYING CONDITIONS ALONG WITH A SLIGHT WARM UP ARE EXPECTED THROUGH
TUESDAY. LOOK FOR MINRHS TO FALL TO 15-20% THIS AFTERNOON AND
10-15% ON TUESDAY, WHILE OVERNIGHT RECOVERIES TRANSITION FROM GOOD
TO POOR TO FAIR (25-40%) BY TUESDAY NIGHT. WINDS WILL BE ON THE
LIGHT SIDE FOLLOWING DIURNAL PATTERNS WITH ONLY SOME OCCASIONAL
UPSLOPE BREEZINESS DURING THE AFTERNOON HOURS.
..THUNDERSTORMS IMPLY GUSTY WINDS
NOTE...ADDITIONAL FIRE WEATHER FORECAST INFORMATION CAN BE FOUND
IN THE AREA FORECAST DISCUSSION. SEE PRODUCT PHXAFDPSR.
AZZ132-271930-
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-
1220 AM MST MON APR 27 2026
TODAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................74-81.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................17-21 PCT.
* 24 HR TREND..................6 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.
* MIXING HEIGHT FOR PHOENIX.......9600 FT AGL.
* TRANSPORT WIND FOR PHOENIX......SOUTHWEST 8 KNOTS.
* DISPERSION FOR PHOENIX..........VERY GOOD.
TONIGHT
* SKY/WEATHER.....................CLEAR.
* MIN TEMPERATURE.................49-59.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................37-56 PCT.
* 24 HR TREND..................12 PCT DRIER.
* 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.
TUESDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................81-87.
* 24 HR TREND..................6 DEGREES WARMER.
* MIN HUMIDITY....................10-14 PCT.
* 24 HR TREND..................7 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 5 TO 10 MPH IN THE MORNING
BECOMING WEST 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.
* MIXING HEIGHT FOR PHOENIX.......7500 FT AGL.
* TRANSPORT WIND FOR PHOENIX......WEST 4 KNOTS.
* DISPERSION FOR PHOENIX..........FAIR.
EXTENDED
WEDNESDAY
PARTLY CLOUDY. LOWS 56-66. HIGHS 84-89. SOUTH WINDS
5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
THURSDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 55-65. HIGHS 78-84. SOUTHWEST WINDS 5 TO
15 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 55-66. HIGHS 84-92. SOUTHWEST WINDS
5 TO 15 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 59-72. HIGHS 89-96.
SUNDAY
PARTLY CLOUDY. LOWS 60-72. HIGHS 89-96.
AZZ131-CAZ231-271930-
YUMA/MARTINEZ LAKE AND VICINITY/LOWER COLORADO RIVER VALLEY AZ-
LOWER COLORADO RIVER VALLEY CA-
1220 AM MST MON APR 27 2026 /1220 AM PDT MON APR 27 2026/
TODAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................75-80.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................16-21 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.
* MIXING HEIGHT FOR YUMA..........8400 FT AGL.
* TRANSPORT WIND FOR YUMA.........WEST 12 KNOTS.
* DISPERSION FOR YUMA.............VERY GOOD.
TONIGHT
* SKY/WEATHER.....................CLEAR.
* MIN TEMPERATURE.................48-53.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................54-71 PCT.
* 24 HR TREND..................5 PCT DRIER.
* 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.
TUESDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................82-87.
* 24 HR TREND..................7 DEGREES WARMER.
* MIN HUMIDITY....................11-15 PCT.
* 24 HR TREND..................5 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 5 TO 10 MPH IN THE MORNING
BECOMING SOUTHWEST 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.
* MIXING HEIGHT FOR YUMA..........6600 FT AGL.
* TRANSPORT WIND FOR YUMA.........SOUTHWEST 4 KNOTS.
* DISPERSION FOR YUMA.............FAIR.
EXTENDED
WEDNESDAY
PARTLY CLOUDY. LOWS 54-62. HIGHS 86-91. SOUTHWEST
WINDS 5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
THURSDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS. LOWS
56-62. HIGHS 80-85. WEST WINDS 5 TO 15 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 56-65. HIGHS 90-95. WEST WINDS 5 TO
10 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 60-70. HIGHS 93-98.
SUNDAY
PARTLY CLOUDY. LOWS 61-70. HIGHS 91-96.
AZZ133-271930-
SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS-
SOUTHERN TONTO NF/WEST SAN CARLOS BIA/SOUTH PORTION FT APACHE BIA/
CAZ-
1220 AM MST MON APR 27 2026
TODAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................64-78.
* 24 HR TREND..................4 DEGREES WARMER.
* MIN HUMIDITY....................14-21 PCT.
* 24 HR TREND..................9 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...............0 PERCENT.
TONIGHT
* SKY/WEATHER.....................CLEAR.
* MIN TEMPERATURE.................38-52.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................39-54 PCT.
* 24 HR TREND..................14 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 10 MPH IN THE EVENING
BECOMING NORTH AFTER MIDNIGHT.
* 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.
TUESDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................70-83.
* 24 HR TREND..................6 DEGREES WARMER.
* MIN HUMIDITY....................8-12 PCT.
* 24 HR TREND..................7 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHEAST 5 TO 10 MPH IN THE
MORNING BECOMING SOUTHWEST IN THE AFTERNOON.
* WINDS...10000 FT MSL............WEST 20 TO 30 MPH IN THE MORNING
BECOMING SOUTHWEST 10 TO 20 MPH IN THE AFTERNOON.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
EXTENDED
WEDNESDAY
PARTLY CLOUDY. LOWS 45-62. HIGHS 71-85. SOUTH WINDS
5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
THURSDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 42-62. HIGHS 64-79. SOUTH WINDS
10 TO 20 MPH.
FRIDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 42-61. HIGHS 66-82. WEST WINDS 10 TO 20 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 43-68. HIGHS 72-89.
SUNDAY
PARTLY CLOUDY. LOWS 50-68. HIGHS 74-91.
CAZ232-271930-
IMPERIAL COUNTY AND EASTERN RIVERSIDE COUNTY-
1220 AM PDT MON APR 27 2026
TODAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................70-79.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................15-25 PCT.
* 24 HR TREND..................4 PCT DRIER.
* 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.
TONIGHT
* SKY/WEATHER.....................CLEAR.
* MIN TEMPERATURE.................50-56.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................42-64 PCT.
* 24 HR TREND..................5 PCT DRIER.
* 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.
TUESDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................77-85.
* 24 HR TREND..................6 DEGREES WARMER.
* MIN HUMIDITY....................11-18 PCT.
* 24 HR TREND..................6 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHWEST 5 TO 10 MPH IN THE
MORNING BECOMING SOUTH 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
PARTLY CLOUDY. LOWS 57-66. HIGHS 82-90. WEST WINDS
5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
THURSDAY
PARTLY CLOUDY. LOWS 58-66. HIGHS 77-86. WEST WINDS
10 TO 20 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 58-69. HIGHS 86-95. WEST WINDS 5 TO
15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
SATURDAY
MOSTLY CLEAR. LOWS 62-72. HIGHS 88-97.
SUNDAY
PARTLY CLOUDY. LOWS 59-72. HIGHS 86-95.
CAZ230-271930-
JOSHUA TREE NATIONAL PARK-
1220 AM PDT MON APR 27 2026
TODAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................58-74.
* 24 HR TREND..................3 DEGREES WARMER.
* MIN HUMIDITY....................17-32 PCT.
* 24 HR TREND..................7 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 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.
TONIGHT
* SKY/WEATHER.....................CLEAR.
* MIN TEMPERATURE.................39-52.
* 24 HR TREND..................3 DEGREES WARMER.
* MAX HUMIDITY....................46-59 PCT.
* 24 HR TREND..................8 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHWEST 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.
TUESDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................68-80.
* 24 HR TREND..................7 DEGREES WARMER.
* MIN HUMIDITY....................13-18 PCT.
* 24 HR TREND..................8 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 5 TO 10 MPH IN THE MORNING
BECOMING SOUTHEAST 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...............0 PERCENT.
EXTENDED
WEDNESDAY
PARTLY CLOUDY. LOWS 48-62. HIGHS 71-84. WEST WINDS
5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
THURSDAY
PARTLY CLOUDY. LOWS 50-62. HIGHS 69-82. NORTHWEST
WINDS 10 TO 20 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 50-64. HIGHS 77-91. NORTHWEST WINDS
10 TO 20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
SATURDAY
MOSTLY CLEAR. LOWS 54-67. HIGHS 78-92.
SUNDAY
PARTLY CLOUDY. LOWS 46-67. HIGHS 75-90.
8 TO 10 DAY OUTLOOK
MONDAY MAY 4TH THROUGH WEDNESDAY MAY 6TH:
ABOVE NORMAL TEMPERATURES AND NEAR MEDIAN PRECIPITATION.
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