022
FNUS55 KPSR 022047
FWFPSR
FIRE WEATHER PLANNING FORECAST FOR SOUTHWEST AND SOUTH-CENTRAL
ARIZONA AND SOUTHEAST CALIFORNIA
NATIONAL WEATHER SERVICE PHOENIX AZ
147 PM MST SAT MAY 2 2026
DISCUSSION
OCCASIONALLY GUSTY WINDS WILL PRODUCE A LOCALLY ELEVATED FIRE
DANGER THROUGH MONDAY. WHILE EASTERN DISTRICTS WILL SEE 20-30 MPH
EASTERLY RIDGETOP GUSTS SUNDAY MORNING, MORE WIDESPREAD GUSTY
WINDS JUXTAPOSED WITH LOWERED RH WILL ENTER THE REGION SUNDAY
AFTERNOON THROUGH MONDAY. STRONGER WESTERLY GUSTS IN EXCESS OF 25
MPH INITIALLY IN WESTERN DISTRICTS SUNDAY EVENING WILL SPREAD
INTO EASTERN DISTRICTS MONDAY AFTERNOON. MINIMUM HUMIDITY LEVELS
10-20% SUNDAY AFTERNOON WILL IMPROVE CLOSER TO 15-25% MONDAY. POOR
TO FAIR OVERNIGHT RECOVERY OF 20-40% TONIGHT WILL ALSO IMPROVE
INTO A 30-50% RANGE MONDAY MORNING.
..THUNDERSTORMS IMPLY GUSTY WINDS
NOTE...ADDITIONAL FIRE WEATHER FORECAST INFORMATION CAN BE FOUND
IN THE AREA FORECAST DISCUSSION. SEE PRODUCT PHXAFDPSR.
AZZ132-030900-
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-
147 PM MST SAT MAY 2 2026
TONIGHT
* SKY/WEATHER.....................PARTLY CLOUDY.
* MIN TEMPERATURE.................65-75.
* 24 HR TREND..................4 DEGREES WARMER.
* MAX HUMIDITY....................23-37 PCT.
* 24 HR TREND..................3 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHEAST 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.
SUNDAY
* SKY/WEATHER.....................PARTLY SUNNY.
* MAX TEMPERATURE.................90-96.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................12-16 PCT.
* 24 HR TREND..................3 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHEAST 5 TO 15 MPH IN THE
MORNING BECOMING SOUTH 10 TO 20 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.......13000 FT AGL.
* TRANSPORT WIND FOR PHOENIX......SOUTH 19 KNOTS.
* DISPERSION FOR PHOENIX..........EXCELLENT.
SUNDAY NIGHT
* SKY/WEATHER.....................PARTLY CLOUDY IN THE EVENING
BECOMING MOSTLY CLOUDY AFTER MIDNIGHT.
* MIN TEMPERATURE.................61-71.
* 24 HR TREND..................3 DEGREES COOLER.
* MAX HUMIDITY....................38-49 PCT.
* 24 HR TREND..................13 PCT WETTER.
* 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.
MONDAY
* SKY/WEATHER.....................MOSTLY CLOUDY.
* MAX TEMPERATURE.................77-84.
* 24 HR TREND..................13 DEGREES COOLER.
* MIN HUMIDITY....................17-25 PCT.
* 24 HR TREND..................8 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 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 PHOENIX.......7300 FT AGL.
* TRANSPORT WIND FOR PHOENIX......SOUTHWEST 13 KNOTS.
* DISPERSION FOR PHOENIX..........VERY GOOD.
EXTENDED
TUESDAY
NOT AS WARM. MOSTLY CLEAR. LOWS 50-60. HIGHS 73-79.
SOUTHWEST WINDS 10 TO 20 MPH.
WEDNESDAY
CLEAR. LOWS 51-63. HIGHS 81-87. WEST WINDS 5 TO
15 MPH.
THURSDAY
WARMER, CLEAR. LOWS 56-68. HIGHS 92-97. NORTHWEST
WINDS 5 TO 10 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
FRIDAY
CLEAR. LOWS 62-72. HIGHS 97-102.
SATURDAY
CLEAR. LOWS 65-75. HIGHS 98-103.
AZZ131-CAZ231-030900-
YUMA/MARTINEZ LAKE AND VICINITY/LOWER COLORADO RIVER VALLEY AZ-
LOWER COLORADO RIVER VALLEY CA-
147 PM MST SAT MAY 2 2026 /147 PM PDT SAT MAY 2 2026/
TONIGHT
* SKY/WEATHER.....................PARTLY CLOUDY.
* MIN TEMPERATURE.................64-70.
* 24 HR TREND..................4 DEGREES WARMER.
* MAX HUMIDITY....................24-37 PCT.
* 24 HR TREND..................10 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 10 MPH IN THE EVENING
BECOMING SOUTHEAST AFTER MIDNIGHT.
* WINDS...10000 FT MSL............SOUTH 5 TO 15 MPH IN THE EVENING
BECOMING 15 TO 25 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.................92-97.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................13-17 PCT.
* 24 HR TREND..................6 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHEAST 5 TO 15 MPH IN THE
MORNING BECOMING SOUTH 15 TO 25 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 YUMA..........6400 FT AGL.
* TRANSPORT WIND FOR YUMA.........SOUTH 22 KNOTS.
* DISPERSION FOR YUMA.............EXCELLENT.
SUNDAY NIGHT
* SKY/WEATHER.....................PARTLY CLOUDY.
* MIN TEMPERATURE.................60-65.
* 24 HR TREND..................5 DEGREES COOLER.
* MAX HUMIDITY....................41-52 PCT.
* 24 HR TREND..................17 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.
MONDAY
* SKY/WEATHER.....................PARTLY SUNNY.
* MAX TEMPERATURE.................77-82.
* 24 HR TREND..................15 DEGREES COOLER.
* MIN HUMIDITY....................18-25 PCT.
* 24 HR TREND..................6 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..........6600 FT AGL.
* TRANSPORT WIND FOR YUMA.........SOUTHWEST 13 KNOTS.
* DISPERSION FOR YUMA.............VERY GOOD.
EXTENDED
TUESDAY
MOSTLY CLEAR. LOWS 52-57. HIGHS 76-81. WEST WINDS
10 TO 20 MPH.
WEDNESDAY
CLEAR. LOWS 52-62. HIGHS 84-89. WEST WINDS 5 TO
15 MPH.
THURSDAY
WARMER, CLEAR. LOWS 57-68. HIGHS 95-100. WEST WINDS
5 TO 10 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
FRIDAY
CLEAR. LOWS 63-71. HIGHS 100-105.
SATURDAY
CLEAR. LOWS 66-71. HIGHS 101-106.
AZZ133-030900-
SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS-
SOUTHERN TONTO NF/WEST SAN CARLOS BIA/SOUTH PORTION FT APACHE BIA/
CAZ-
147 PM MST SAT MAY 2 2026
TONIGHT
* SKY/WEATHER.....................PARTLY CLOUDY.
* MIN TEMPERATURE.................50-68.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................37-61 PCT.
* 24 HR TREND..................3 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 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.
SUNDAY
* SKY/WEATHER.....................PARTLY SUNNY.
* MAX TEMPERATURE.................74-91.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................12-23 PCT.
* 24 HR TREND..................LITTLE CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 5 TO 15 MPH IN THE MORNING
BECOMING SOUTH 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...............2 PERCENT.
SUNDAY NIGHT
* SKY/WEATHER.....................PARTLY CLOUDY.
* MIN TEMPERATURE.................51-65.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................40-52 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 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.
MONDAY
* SKY/WEATHER.....................MOSTLY CLOUDY.
* MAX TEMPERATURE.................69-82.
* 24 HR TREND..................7 DEGREES COOLER.
* MIN HUMIDITY....................18-26 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.
EXTENDED
TUESDAY
COOLER. PARTLY CLOUDY WITH CHANCE OF SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS. LOWS 38-59. HIGHS 61-75.
SOUTHWEST WINDS 10 TO 20 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 38-59. HIGHS 68-82. WEST WINDS
5 TO 15 MPH.
THURSDAY
CLEAR. LOWS 42-64. HIGHS 77-92. NORTHEAST WINDS 5 TO
15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
FRIDAY
CLEAR. LOWS 48-67. HIGHS 82-97.
SATURDAY
CLEAR. LOWS 51-69. HIGHS 83-98.
CAZ232-030900-
IMPERIAL COUNTY AND EASTERN RIVERSIDE COUNTY-
147 PM PDT SAT MAY 2 2026
TONIGHT
* SKY/WEATHER.....................PARTLY CLOUDY.
* MIN TEMPERATURE.................66-72.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................21-41 PCT.
* 24 HR TREND..................5 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTH 5 TO 15 MPH IN THE EVENING
BECOMING SOUTHEAST 15 TO 25 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.................87-96.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................12-19 PCT.
* 24 HR TREND..................7 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHEAST 5 TO 10 MPH IN THE
MORNING BECOMING SOUTH 10 TO 20 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.
SUNDAY NIGHT
* SKY/WEATHER.....................PARTLY CLOUDY.
* MIN TEMPERATURE.................58-66.
* 24 HR TREND..................7 DEGREES COOLER.
* MAX HUMIDITY....................35-56 PCT.
* 24 HR TREND..................16 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 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.
MONDAY
* SKY/WEATHER.....................PARTLY SUNNY.
* MAX TEMPERATURE.................71-81.
* 24 HR TREND..................15 DEGREES COOLER.
* MIN HUMIDITY....................17-31 PCT.
* 24 HR TREND..................9 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 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.
EXTENDED
TUESDAY
MOSTLY CLEAR. LOWS 51-60. HIGHS 70-79. WEST WINDS
10 TO 20 MPH.
WEDNESDAY
CLEAR. LOWS 52-67. HIGHS 80-89. WEST WINDS 5 TO
15 MPH.
THURSDAY
CLEAR. LOWS 60-73. HIGHS 90-99. WEST WINDS 5 TO
15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
FRIDAY
CLEAR. LOWS 66-75. HIGHS 96-105.
SATURDAY
CLEAR. LOWS 67-75. HIGHS 96-105.
CAZ230-030900-
JOSHUA TREE NATIONAL PARK-
147 PM PDT SAT MAY 2 2026
TONIGHT
* SKY/WEATHER.....................PARTLY CLOUDY.
* MIN TEMPERATURE.................57-68.
* 24 HR TREND..................3 DEGREES WARMER.
* MAX HUMIDITY....................25-34 PCT.
* 24 HR TREND..................6 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTH 5 TO 15 MPH IN THE EVENING
BECOMING 20 TO 30 MPH AFTER MIDNIGHT.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
SUNDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................75-90.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................13-21 PCT.
* 24 HR TREND..................8 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 10 MPH IN THE MORNING
BECOMING 15 TO 25 MPH IN THE AFTERNOON.
* WINDS...10000 FT MSL............SOUTH 25 TO 35 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
SUNDAY NIGHT
* SKY/WEATHER.....................PARTLY CLOUDY.
* MIN TEMPERATURE.................44-58.
* 24 HR TREND..................11 DEGREES COOLER.
* MAX HUMIDITY....................38-61 PCT.
* 24 HR TREND..................17 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 10 TO 20 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 30 TO 40 MPH IN THE
EVENING BECOMING 20 TO 30 MPH AFTER MIDNIGHT.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
MONDAY
* SKY/WEATHER.....................PARTLY SUNNY.
* MAX TEMPERATURE.................60-77.
* 24 HR TREND..................14 DEGREES COOLER.
* MIN HUMIDITY....................19-37 PCT.
* 24 HR TREND..................10 PCT WETTER.
* 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.
EXTENDED
TUESDAY
COOLER. MOSTLY CLEAR. LOWS 39-54. HIGHS 58-74. WEST
WINDS 10 TO 20 MPH.
WEDNESDAY
WARMER, CLEAR. LOWS 42-62. HIGHS 72-85. NORTHWEST
WINDS 5 TO 15 MPH.
THURSDAY
CLEAR. LOWS 53-68. HIGHS 81-94. WEST WINDS 5 TO
15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
FRIDAY
CLEAR. LOWS 59-71. HIGHS 86-99.
SATURDAY
CLEAR. LOWS 60-71. HIGHS 86-100.
8 TO 10 DAY OUTLOOK
SUNDAY MAY 10TH THROUGH TUESDAY MAY 12TH:
ABOVE NORMAL TEMPERATURES AND NEAR MEDIAN PRECIPITATION.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page