047
FNUS55 KPSR 161034
FWFPSR
FIRE WEATHER PLANNING FORECAST FOR SOUTHWEST AND SOUTH-CENTRAL
ARIZONA AND SOUTHEAST CALIFORNIA
NATIONAL WEATHER SERVICE PHOENIX AZ
334 AM 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 AND NEAR TO SLIGHTLY BELOW NORMAL TEMPERATURES WILL
CARRY US THROUGH THE END OF THE WORK WEEK. WIDESPREAD BREEZY
CONDITIONS WILL DEVELOP THIS AFTERNOON, ESPECIALLY FOR HIGHER
TERRAIN AREAS AND THE LOWER COLORADO RIVER VALLEY, WITH READINGS
AROUND 20-25 MPH. GREATER WIND SPEEDS WITH GUSTS PEAKING AROUND
30-45 MPH WILL BE OBSERVED FRIDAY, ESPECIALLY FOR THE LOWER
COLORADO RIVER VALLEY, GENERATING ELEVATED TO LOCALLY CRITICAL
FIRE WEATHER CONDITIONS FOR A FEW HOURS LATE MORNING INTO THE
AFTERNOON. WINDS WILL GRADUALLY RELAX FRIDAY AFTERNOON. AFTERNOON
MINRHS WILL RANGE FROM 7-15% TODAY AND FRIDAY, WITH FAIR OVERNIGHT
RECOVERIES BETWEEN 30-50% TONIGHT.
NOTE...ADDITIONAL FIRE WEATHER FORECAST INFORMATION CAN BE FOUND
IN THE AREA FORECAST DISCUSSION. SEE PRODUCT PHXAFDPSR.
AZZ132-162245-
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-
334 AM MST THU APR 16 2026
TODAY
* SKY/WEATHER.....................PARTLY SUNNY.
* MAX TEMPERATURE.................82-88.
* 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............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.......11100 FT AGL.
* TRANSPORT WIND FOR PHOENIX......SOUTHWEST 13 KNOTS.
* DISPERSION FOR PHOENIX..........EXCELLENT.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................52-62.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................35-60 PCT.
* 24 HR TREND..................13 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.................79-85.
* 24 HR TREND..................3 DEGREES COOLER.
* MIN HUMIDITY....................7-14 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.
* MIXING HEIGHT FOR PHOENIX.......9200 FT AGL.
* TRANSPORT WIND FOR PHOENIX......WEST 9 KNOTS.
* DISPERSION FOR PHOENIX..........VERY GOOD.
EXTENDED
SATURDAY
MOSTLY CLEAR. LOWS 49-64. HIGHS 85-91. NORTH WINDS
5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
SUNDAY
PARTLY CLOUDY. LOWS 56-66. HIGHS 89-95. SOUTHEAST WINDS
10 TO 20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
MONDAY
MOSTLY CLEAR. LOWS 56-66. HIGHS 88-94. SOUTH WINDS
10 TO 20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
TUESDAY
MOSTLY CLEAR. LOWS 54-64. HIGHS 84-92.
WEDNESDAY
PARTLY CLOUDY. LOWS 53-63. HIGHS 80-87.
AZZ131-CAZ231-162245-
YUMA/MARTINEZ LAKE AND VICINITY/LOWER COLORADO RIVER VALLEY AZ-
LOWER COLORADO RIVER VALLEY CA-
334 AM MST THU APR 16 2026 /334 AM PDT THU APR 16 2026/
TODAY
* SKY/WEATHER.....................PARTLY SUNNY.
* MAX TEMPERATURE.................84-89.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................12-17 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 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.
* MIXING HEIGHT FOR YUMA..........9000 FT AGL.
* TRANSPORT WIND FOR YUMA.........SOUTH 10 KNOTS.
* DISPERSION FOR YUMA.............VERY GOOD.
TONIGHT
* SKY/WEATHER.....................PARTLY CLOUDY IN THE EVENING
BECOMING CLEAR AFTER MIDNIGHT.
* MIN TEMPERATURE.................53-58.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................37-57 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* 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..................8 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 10 TO 20 MPH.
* WINDS...10000 FT MSL............WEST 10 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
* MIXING HEIGHT FOR YUMA..........7900 FT AGL.
* TRANSPORT WIND FOR YUMA.........NORTH 18 KNOTS.
* DISPERSION FOR YUMA.............EXCELLENT.
EXTENDED
SATURDAY
MOSTLY CLEAR. LOWS 48-61. HIGHS 85-90. NORTH WINDS
10 TO 20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
SUNDAY
MOSTLY CLEAR. LOWS 53-62. HIGHS 91-96. SOUTHWEST WINDS
5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
MONDAY
CLEAR. LOWS 57-62. HIGHS 89-94. SOUTH WINDS 10 TO
20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
TUESDAY
MOSTLY CLEAR. LOWS 54-60. HIGHS 84-89.
WEDNESDAY
PARTLY CLOUDY. LOWS 53-59. HIGHS 81-86.
AZZ133-162245-
SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS-
SOUTHERN TONTO NF/WEST SAN CARLOS BIA/SOUTH PORTION FT APACHE BIA/
CAZ-
334 AM MST THU APR 16 2026
TODAY
* SKY/WEATHER.....................PARTLY SUNNY.
* MAX TEMPERATURE.................70-84.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................8-12 PCT.
* 24 HR TREND..................4 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.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................41-55.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................33-44 PCT.
* 24 HR TREND..................4 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.................67-82.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................12-18 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.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
EXTENDED
SATURDAY
MOSTLY CLEAR. LOWS 38-62. HIGHS 73-88. NORTHEAST
WINDS 10 TO 20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
SUNDAY
BREEZY. PARTLY CLOUDY. LOWS 47-63. HIGHS 71-89. EAST
WINDS 20 TO 30 MPH.
MONDAY
MOSTLY CLEAR. LOWS 47-63. HIGHS 74-90. SOUTH WINDS
10 TO 20 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 44-60. HIGHS 74-89.
WEDNESDAY
MOSTLY CLEAR. LOWS 42-58. HIGHS 70-84.
CAZ232-162245-
IMPERIAL COUNTY AND EASTERN RIVERSIDE COUNTY-
334 AM PDT THU APR 16 2026
TODAY
* SKY/WEATHER.....................MOSTLY CLOUDY.
* MAX TEMPERATURE.................79-88.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................7-15 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 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.....................PARTLY CLOUDY IN THE EVENING
BECOMING CLEAR AFTER MIDNIGHT.
* MIN TEMPERATURE.................55-61.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................30-49 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 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 IN THE
MORNING.
* MAX TEMPERATURE.................75-83.
* 24 HR TREND..................5 DEGREES COOLER.
* MIN HUMIDITY....................4-10 PCT.
* 24 HR TREND..................4 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.
EXTENDED
SATURDAY
MOSTLY CLEAR. LOWS 52-64. HIGHS 80-88. NORTH WINDS
10 TO 20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
SUNDAY
MOSTLY CLEAR. LOWS 56-64. HIGHS 86-94. WEST WINDS 5 TO
15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
MONDAY
CLEAR. LOWS 56-63. HIGHS 84-93. SOUTHWEST WINDS 10 TO
20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
TUESDAY
MOSTLY CLEAR. LOWS 54-62. HIGHS 78-88.
WEDNESDAY
PARTLY CLOUDY. LOWS 54-61. HIGHS 76-85.
CAZ230-162245-
JOSHUA TREE NATIONAL PARK-
334 AM PDT THU APR 16 2026
TODAY
* SKY/WEATHER.....................PARTLY SUNNY.
* MAX TEMPERATURE.................67-82.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................8-17 PCT.
* 24 HR TREND..................4 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 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.....................PARTLY CLOUDY IN THE EVENING
BECOMING CLEAR AFTER MIDNIGHT.
* MIN TEMPERATURE.................43-56.
* 24 HR TREND..................3 DEGREES COOLER.
* MAX HUMIDITY....................33-50 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.
EXTENDED
SATURDAY
MOSTLY CLEAR. LOWS 43-59. HIGHS 70-83. NORTH WINDS
10 TO 20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
SUNDAY
MOSTLY CLEAR. LOWS 48-59. HIGHS 74-89. SOUTHWEST WINDS
10 TO 20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
MONDAY
CLEAR. LOWS 45-58. HIGHS 72-87. SOUTHWEST WINDS 15 TO
25 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
TUESDAY
MOSTLY CLEAR. LOWS 43-56. HIGHS 67-83.
WEDNESDAY
MOSTLY CLEAR. LOWS 43-55. HIGHS 65-80.
8 TO 10 DAY OUTLOOK
THURSDAY APRIL 23RD THROUGH FRIDAY APRIL
25TH: NEAR NORMAL TEMPERATURES AND NEAR MEDIAN PRECIPITATION.
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