408
FNUS55 KPSR 161956
FWFPSR
FIRE WEATHER PLANNING FORECAST FOR SOUTHWEST AND SOUTH-CENTRAL
ARIZONA AND SOUTHEAST CALIFORNIA
NATIONAL WEATHER SERVICE PHOENIX AZ
1256 PM MST THU APR 16 2026
...ELEVATED TO LOCALLY CRITICAL FIRE WEATHER CONDITIONS EXPECTED
FRIDAY LATE MORNING INTO THE EARLY AFTERNOON FOR THE LOWER
COLORADO RIVER VALLEY FOR STRONG WINDS AND VERY LOW HUMIDITY...
DISCUSSION
DRY CONDITIONS WITH NEAR TO SLIGHTLY BELOW NORMAL TEMPERATURES
WILL PERSIST THROUGH THE END OF THE WEEK. WIDESPREAD BREEZINESS
WILL DEVELOP THIS AFTERNOON WITH GUSTS 15-25 MPH, WITH THE HIGHER
END OF THE RANGE FAVORED OVER HIGHER TERRAIN AREAS AND THE LOWER
COLORADO RIVER VALLEY. GREATER WIND SPEEDS WITH GUSTS PEAKING
30-45 MPH WILL BE OBSERVED FRIDAY, MAINLY FOR PORTIONS OF SE
CALIFORNIA AND FAR WESTERN ARIZONA, GENERATING ELEVATED TO LOCALLY
CRITICAL FIRE WEATHER CONDITIONS DURING THE MORNING INTO EARLY
AFTERNOON HOURS. MINRHS THIS AFTERNOON WILL HOVER NEAR 7-15% WITH
MODEST TO DECENT OVERNIGHT RECOVERIES AS MAXRHS RANGE BETWEEN
30-50%. FRIDAY AFTERNOON RHS WILL BE VERY LOW (5-10%) FOR THE
WESTERN DISTRICTS, WITH OVERNIGHT RECOVERY HEADING INTO SATURDAY
OFFERING VERY LITTLE RELIEF FOR THESE AREAS AS RHS WILL ONLY RISE
TO AROUND 10-20%.
NOTE...ADDITIONAL FIRE WEATHER FORECAST INFORMATION CAN BE FOUND
IN THE AREA FORECAST DISCUSSION. SEE PRODUCT PHXAFDPSR.
AZZ132-170800-
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-
1256 PM MST THU APR 16 2026
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................52-62.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................37-59 PCT.
* 24 HR TREND..................14 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 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.
FRIDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................78-86.
* 24 HR TREND..................3 DEGREES COOLER.
* MIN HUMIDITY....................7-15 PCT.
* 24 HR TREND..................LITTLE CHANGE.
* 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.
* MIXING HEIGHT FOR PHOENIX.......9100 FT AGL.
* TRANSPORT WIND FOR PHOENIX......WEST 7 KNOTS.
* DISPERSION FOR PHOENIX..........GOOD.
FRIDAY NIGHT
* SKY/WEATHER.....................CLEAR.
* MIN TEMPERATURE.................49-59.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................12-30 PCT.
* 24 HR TREND..................27 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............WEST 5 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
SATURDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................85-91.
* 24 HR TREND..................6 DEGREES WARMER.
* MIN HUMIDITY....................6-10 PCT.
* 24 HR TREND..................3 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHEAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............LIGHT AND VARIABLE IN THE MORNING
BECOMING SOUTHEAST 5 TO 15 MPH IN THE AFTERNOON.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
* MIXING HEIGHT FOR PHOENIX.......8900 FT AGL.
* TRANSPORT WIND FOR PHOENIX......SOUTHEAST 3 KNOTS.
* DISPERSION FOR PHOENIX..........FAIR.
EXTENDED
SUNDAY
PARTLY CLOUDY. LOWS 57-67. HIGHS 89-95. SOUTHEAST WINDS
10 TO 20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
MONDAY
MOSTLY CLEAR. LOWS 57-67. HIGHS 88-95. SOUTH WINDS
10 TO 20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
TUESDAY
MOSTLY CLEAR. LOWS 55-65. HIGHS 87-94. SOUTH WINDS
10 TO 20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
WEDNESDAY
MOSTLY CLEAR. LOWS 53-63. HIGHS 81-88.
THURSDAY
MOSTLY CLEAR. LOWS 52-62. HIGHS 80-86.
AZZ131-CAZ231-170800-
YUMA/MARTINEZ LAKE AND VICINITY/LOWER COLORADO RIVER VALLEY AZ-
LOWER COLORADO RIVER VALLEY CA-
1256 PM MST THU APR 16 2026 /1256 PM PDT THU APR 16 2026/
TONIGHT
* SKY/WEATHER.....................PARTLY CLOUDY IN THE EVENING
BECOMING CLEAR AFTER MIDNIGHT.
* MIN TEMPERATURE.................53-58.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................39-53 PCT.
* 24 HR TREND..................3 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH IN THE
EVENING BECOMING NORTHWEST AFTER MIDNIGHT.
* 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.
FRIDAY
* SKY/WEATHER.....................SUNNY. PATCHY BLOWING DUST.
* MAX TEMPERATURE.................79-84.
* 24 HR TREND..................5 DEGREES COOLER.
* MIN HUMIDITY....................5-9 PCT.
* 24 HR TREND..................9 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 10 TO 20 MPH.
* WINDS...10000 FT MSL............NORTHWEST 10 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
* MIXING HEIGHT FOR YUMA..........8100 FT AGL.
* TRANSPORT WIND FOR YUMA.........NORTH 17 KNOTS.
* DISPERSION FOR YUMA.............EXCELLENT.
FRIDAY NIGHT
* SKY/WEATHER.....................CLEAR.
* MIN TEMPERATURE.................47-55.
* 24 HR TREND..................5 DEGREES COOLER.
* MAX HUMIDITY....................11-23 PCT.
* 24 HR TREND..................30 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............NORTHWEST 5 TO 15 MPH IN THE
EVENING BECOMING LIGHT AND VARIABLE AFTER MIDNIGHT.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
SATURDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................85-90.
* 24 HR TREND..................6 DEGREES WARMER.
* MIN HUMIDITY....................6-10 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............LIGHT AND VARIABLE IN THE MORNING
BECOMING SOUTHEAST 5 TO 15 MPH IN THE AFTERNOON.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
* MIXING HEIGHT FOR YUMA..........6800 FT AGL.
* TRANSPORT WIND FOR YUMA.........NORTHWEST 5 KNOTS.
* DISPERSION FOR YUMA.............FAIR.
EXTENDED
SUNDAY
PARTLY CLOUDY. LOWS 53-62. HIGHS 90-95. SOUTHEAST WINDS
5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
MONDAY
CLEAR. LOWS 56-62. HIGHS 89-94. SOUTH WINDS 10 TO
20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
TUESDAY
MOSTLY CLEAR. LOWS 55-60. HIGHS 87-92. SOUTH WINDS
10 TO 20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
WEDNESDAY
MOSTLY CLEAR. LOWS 53-60. HIGHS 82-87.
THURSDAY
MOSTLY CLEAR. LOWS 53-59. HIGHS 82-87.
AZZ133-170800-
SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS-
SOUTHERN TONTO NF/WEST SAN CARLOS BIA/SOUTH PORTION FT APACHE BIA/
CAZ-
1256 PM MST THU APR 16 2026
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................41-55.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................35-48 PCT.
* 24 HR TREND..................7 PCT WETTER.
* 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.
FRIDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................67-81.
* 24 HR TREND..................3 DEGREES COOLER.
* MIN HUMIDITY....................13-19 PCT.
* 24 HR TREND..................5 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............WEST 15 TO 25 MPH IN THE MORNING
BECOMING 5 TO 15 MPH IN THE AFTERNOON.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
FRIDAY NIGHT
* SKY/WEATHER.....................CLEAR.
* MIN TEMPERATURE.................39-55.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................26-37 PCT.
* 24 HR TREND..................10 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 10 MPH IN THE EVENING
BECOMING NORTHEAST AFTER MIDNIGHT.
* WINDS...10000 FT MSL............LIGHT AND VARIABLE.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
SATURDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................72-87.
* 24 HR TREND..................6 DEGREES WARMER.
* MIN HUMIDITY....................7-11 PCT.
* 24 HR TREND..................6 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............LIGHT AND VARIABLE IN THE MORNING
BECOMING SOUTHEAST 5 TO 15 MPH IN THE AFTERNOON.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
EXTENDED
SUNDAY
BREEZY. PARTLY CLOUDY. LOWS 47-63. HIGHS 72-89. EAST
WINDS 20 TO 30 MPH.
MONDAY
MOSTLY CLEAR. LOWS 47-63. HIGHS 74-90. SOUTHEAST WINDS
10 TO 20 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 47-61. HIGHS 76-91. SOUTH WINDS
10 TO 20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
WEDNESDAY
MOSTLY CLEAR. LOWS 43-60. HIGHS 71-85.
THURSDAY
MOSTLY CLEAR. LOWS 40-56. HIGHS 68-81.
CAZ232-170800-
IMPERIAL COUNTY AND EASTERN RIVERSIDE COUNTY-
1256 PM PDT THU APR 16 2026
TONIGHT
* SKY/WEATHER.....................PARTLY CLOUDY IN THE EVENING
BECOMING CLEAR AFTER MIDNIGHT.
* MIN TEMPERATURE.................55-60.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................31-51 PCT.
* 24 HR TREND..................LITTLE CHANGE.
* 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.
FRIDAY
* SKY/WEATHER.....................SUNNY. PATCHY BLOWING DUST IN THE
MORNING.
* MAX TEMPERATURE.................74-83.
* 24 HR TREND..................5 DEGREES COOLER.
* MIN HUMIDITY....................5-10 PCT.
* 24 HR TREND..................5 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 15 TO 25 MPH.
* WINDS...10000 FT MSL............NORTHWEST 10 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
FRIDAY NIGHT
* SKY/WEATHER.....................CLEAR.
* MIN TEMPERATURE.................52-59.
* 24 HR TREND..................3 DEGREES COOLER.
* MAX HUMIDITY....................9-29 PCT.
* 24 HR TREND..................25 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............NORTHWEST 5 TO 15 MPH IN THE
EVENING BECOMING LIGHT AND VARIABLE AFTER MIDNIGHT.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
SATURDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................81-88.
* 24 HR TREND..................6 DEGREES WARMER.
* MIN HUMIDITY....................5-9 PCT.
* 24 HR TREND..................LITTLE CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............LIGHT AND VARIABLE.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
EXTENDED
SUNDAY
PARTLY CLOUDY. LOWS 57-64. HIGHS 85-94. WEST WINDS 5 TO
15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
MONDAY
CLEAR. LOWS 57-63. HIGHS 84-93. SOUTH WINDS 10 TO
20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
TUESDAY
MOSTLY CLEAR. LOWS 56-63. HIGHS 80-89. SOUTHWEST WINDS
15 TO 25 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 55-62. HIGHS 76-85.
THURSDAY
MOSTLY CLEAR. LOWS 55-62. HIGHS 77-86.
CAZ230-170800-
JOSHUA TREE NATIONAL PARK-
1256 PM PDT THU APR 16 2026
TONIGHT
* SKY/WEATHER.....................PARTLY CLOUDY IN THE EVENING
BECOMING CLEAR AFTER MIDNIGHT.
* MIN TEMPERATURE.................42-55.
* 24 HR TREND..................3 DEGREES COOLER.
* MAX HUMIDITY....................33-49 PCT.
* 24 HR TREND..................3 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 15 MPH IN THE EVENING
BECOMING NORTHWEST 10 TO 20 MPH AFTER MIDNIGHT.
* 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.
FRIDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................62-75.
* 24 HR TREND..................6 DEGREES COOLER.
* MIN HUMIDITY....................5-9 PCT.
* 24 HR TREND..................6 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 15 TO 25 MPH.
* WINDS...10000 FT MSL............NORTHWEST 10 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
FRIDAY NIGHT
* SKY/WEATHER.....................CLEAR.
* MIN TEMPERATURE.................43-52.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................10-14 PCT.
* 24 HR TREND..................28 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............NORTHWEST 10 TO 20 MPH IN THE
EVENING BECOMING LIGHT AND VARIABLE AFTER MIDNIGHT.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
SATURDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................70-82.
* 24 HR TREND..................7 DEGREES WARMER.
* MIN HUMIDITY....................5-9 PCT.
* 24 HR TREND..................LITTLE CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 5 TO 15 MPH IN THE MORNING
BECOMING NORTHEAST IN THE AFTERNOON.
* WINDS...10000 FT MSL............LIGHT AND VARIABLE.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
EXTENDED
SUNDAY
PARTLY CLOUDY. LOWS 49-59. HIGHS 74-88. SOUTHWEST WINDS
10 TO 20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
MONDAY
CLEAR. LOWS 47-59. HIGHS 73-88. SOUTHWEST WINDS 10 TO
20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
TUESDAY
MOSTLY CLEAR. LOWS 44-58. HIGHS 68-84. SOUTHWEST WINDS
15 TO 25 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 43-56. HIGHS 65-80.
THURSDAY
MOSTLY CLEAR. LOWS 43-56. HIGHS 66-80.
8 TO 10 DAY OUTLOOK
FRIDAY APRIL 24TH THROUGH SATURDAY APRIL
26TH:
NEAR NORMAL TEMPERATURES AND NEAR MEDIAN PRECIPITATION.
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