049
FNUS55 KPSR 312234
FWFPSR
FIRE WEATHER PLANNING FORECAST FOR SOUTHWEST AND SOUTH-CENTRAL
ARIZONA AND SOUTHEAST CALIFORNIA
NATIONAL WEATHER SERVICE PHOENIX AZ
334 PM MST MON MAR 31 2025
DISCUSSION
TEMPERATURES WILL COOL BELOW NORMAL TOMORROW AND WEDNESDAY AS A
COLD WEATHER SYSTEM DROPS INTO THE REGION. CONDITIONS WILL REMAIN
DRY TOMORROW AND THEN THERE WILL BE A SLIGHT CHANCE (15-35%) FOR A
SHOWER WEDNESDAY, FOCUSED MOSTLY IN THE HIGH TERRAIN NORTH AND
EAST OF PHOENIX, BUT CWR WILL REMAIN FAIRLY LOW AT 10-30%. THIS
AFTERNOON AND EVENING WILL BE BREEZY, PARTICULARLY ACROSS THE
WESTERN DESERTS, AND THEN THE STRONGEST WINDS ARE EXPECTED ON
TUESDAY, FOLLOWED BY SLIGHTLY WEAKER WINDS WEDNESDAY. EXPECT THE
HIGHEST WIND SPEEDS ACROSS SE CA, MAINLY IMPERIAL COUNTY, AND
ACROSS THE HIGHER TERRAIN OF MARICOPA AND GILA COUNTIES, WHERE
GUSTS UP TO 35-45 MPH ARE ANTICIPATED. ELEVATED FIRE WEATHER
CONCERNS MAY OCCUR FOR A FEW HOURS TUESDAY AFTERNOON AND EVENING,
WHEN WINDS ARE STRONGEST AND RHS LOWEST. DESPITE STRONGEST WINDS
BEING IN IMPERIAL AND GILA COUNTIES, MINRH VALUES WILL BE MORE
AROUND 20-25%. THE MOST ELEVATED CONDITIONS LOOK TO BE FROM E
RIVERSIDE COUNTY THROUGH LA PAZ AND N MARICOPA COUNTIES TUESDAY,
WHERE MINRHS WILL FALL TO 10-15%.
NOTE...ADDITIONAL FIRE WEATHER FORECAST INFORMATION CAN BE FOUND
IN THE AREA FORECAST DISCUSSION. SEE PRODUCT PHXAFDPSR.
AZZ132-011045-
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 PM MST MON MAR 31 2025
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................51-61.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................48-62 PCT.
* 24 HR TREND..................5 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 10 TO 20 MPH.
* WINDS...10000 FT MSL............WEST 40 TO 50 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
TUESDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................67-74.
* 24 HR TREND..................10 DEGREES COOLER.
* MIN HUMIDITY....................14-19 PCT.
* 24 HR TREND..................10 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 10 TO 20 MPH.
* WINDS...10000 FT MSL............WEST 35 TO 45 MPH IN THE MORNING
BECOMING 25 TO 35 MPH IN THE AFTERNOON.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* MIXING HEIGHT FOR PHOENIX.......8100 FT AGL.
* TRANSPORT WIND FOR PHOENIX......WEST 17 KNOTS.
* DISPERSION FOR PHOENIX..........EXCELLENT.
TUESDAY NIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................44-54.
* 24 HR TREND..................7 DEGREES COOLER.
* MAX HUMIDITY....................48-61 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 10 TO 20 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 15 TO 25 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
WEDNESDAY
* SKY/WEATHER.....................PARTLY SUNNY. SLIGHT CHANCE OF
SHOWERS.
* MAX TEMPERATURE.................60-69.
* 24 HR TREND..................6 DEGREES COOLER.
* MIN HUMIDITY....................17-27 PCT.
* 24 HR TREND..................5 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 20 TO 30 MPH.
* CHANCE OF PRECIP................10 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* MIXING HEIGHT FOR PHOENIX.......8300 FT AGL.
* TRANSPORT WIND FOR PHOENIX......WEST 20 KNOTS.
* DISPERSION FOR PHOENIX..........EXCELLENT.
EXTENDED
THURSDAY
PARTLY CLOUDY. LOWS 42-53. HIGHS 64-70. SOUTHWEST
WINDS 5 TO 15 MPH.
FRIDAY
PARTLY CLOUDY. LOWS 46-56. HIGHS 67-74. WEST WINDS 5 TO
15 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 47-57. HIGHS 73-80. NORTHWEST
WINDS 5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
SUNDAY
MOSTLY CLEAR. LOWS 49-59. HIGHS 75-81.
MONDAY
MOSTLY CLEAR. LOWS 51-61. HIGHS 78-84.
AZZ131-CAZ231-011045-
YUMA/MARTINEZ LAKE AND VICINITY/LOWER COLORADO RIVER VALLEY AZ-
LOWER COLORADO RIVER VALLEY CA-
334 PM MST MON MAR 31 2025 /334 PM PDT MON MAR 31 2025/
TONIGHT
* SKY/WEATHER.....................PARTLY CLOUDY.
* MIN TEMPERATURE.................53-58.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................51-61 PCT.
* 24 HR TREND..................10 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 10 TO 20 MPH.
* WINDS...10000 FT MSL............WEST 35 TO 45 MPH IN THE EVENING
BECOMING 45 TO 55 MPH AFTER MIDNIGHT.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
TUESDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................70-75.
* 24 HR TREND..................9 DEGREES COOLER.
* MIN HUMIDITY....................13-21 PCT.
* 24 HR TREND..................13 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 10 TO 20 MPH.
* WINDS...10000 FT MSL............WEST 40 TO 50 MPH IN THE MORNING
BECOMING 25 TO 35 MPH IN THE AFTERNOON.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* MIXING HEIGHT FOR YUMA..........6700 FT AGL.
* TRANSPORT WIND FOR YUMA.........WEST 30 KNOTS.
* DISPERSION FOR YUMA.............EXCELLENT.
TUESDAY NIGHT
* SKY/WEATHER.....................MOSTLY CLEAR. PATCHY BLOWING DUST
IN THE EVENING.
* MIN TEMPERATURE.................47-52.
* 24 HR TREND..................5 DEGREES COOLER.
* MAX HUMIDITY....................53-65 PCT.
* 24 HR TREND..................3 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 10 TO 20 MPH.
* WINDS...10000 FT MSL............WEST 15 TO 25 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
WEDNESDAY
* SKY/WEATHER.....................MOSTLY SUNNY. SLIGHT CHANCE OF
SHOWERS IN THE AFTERNOON.
* MAX TEMPERATURE.................67-72.
* 24 HR TREND..................3 DEGREES COOLER.
* MIN HUMIDITY....................16-21 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 10 TO 20 MPH.
* WINDS...10000 FT MSL............WEST 20 TO 30 MPH.
* CHANCE OF PRECIP................10 PERCENT IN THE MORNING
BECOMING 0 PERCENT IN THE AFTERNOON.
* CWR (>= 0.10 IN)................0 PERCENT.
* MIXING HEIGHT FOR YUMA..........10000 FT AGL.
* TRANSPORT WIND FOR YUMA.........WEST 18 KNOTS.
* DISPERSION FOR YUMA.............EXCELLENT.
EXTENDED
THURSDAY
PARTLY CLOUDY. LOWS 44-49. HIGHS 67-72. SOUTHWEST
WINDS 5 TO 15 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 45-52. HIGHS 73-78. NORTHWEST WINDS
5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
SATURDAY
MOSTLY CLEAR. LOWS 48-57. HIGHS 78-83. NORTHWEST
WINDS 10 TO 20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
SUNDAY
MOSTLY CLEAR. LOWS 51-58. HIGHS 80-85.
MONDAY
MOSTLY CLEAR. LOWS 53-60. HIGHS 83-88.
AZZ133-011045-
SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS-
SOUTHERN TONTO NF/WEST SAN CARLOS BIA/SOUTH PORTION FT APACHE BIA/
CAZ-
334 PM MST MON MAR 31 2025
TONIGHT
* SKY/WEATHER.....................PARTLY CLOUDY.
* MIN TEMPERATURE.................42-54.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................57-74 PCT.
* 24 HR TREND..................12 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 35 TO 45 MPH IN THE
EVENING BECOMING 45 TO 55 MPH AFTER MIDNIGHT.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
TUESDAY
* SKY/WEATHER.....................PARTLY SUNNY.
* MAX TEMPERATURE.................56-70.
* 24 HR TREND..................10 DEGREES COOLER.
* MIN HUMIDITY....................15-25 PCT.
* 24 HR TREND..................3 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 15 TO 25 MPH.
* WINDS...10000 FT MSL............WEST 40 TO 50 MPH IN THE MORNING
BECOMING 25 TO 35 MPH IN THE AFTERNOON.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
TUESDAY NIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................34-45.
* 24 HR TREND..................9 DEGREES COOLER.
* MAX HUMIDITY....................46-59 PCT.
* 24 HR TREND..................13 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.
WEDNESDAY
* SKY/WEATHER.....................PARTLY SUNNY. SLIGHT CHANCE OF
SHOWERS AND SNOW SHOWERS IN THE MORNING BECOMING CHANCE OF
SHOWERS AND SNOW SHOWERS IN THE AFTERNOON.
* MAX TEMPERATURE.................47-60.
* 24 HR TREND..................9 DEGREES COOLER.
* MIN HUMIDITY....................25-39 PCT.
* 24 HR TREND..................12 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 10 TO 20 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 25 TO 35 MPH.
* CHANCE OF PRECIP................30 PERCENT.
* CWR (>= 0.10 IN)................10 PERCENT.
EXTENDED
THURSDAY
PARTLY CLOUDY. LOWS 31-49. HIGHS 51-65. SOUTH WINDS
5 TO 15 MPH.
FRIDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS. LOWS
35-49. HIGHS 53-67. NORTHWEST WINDS 5 TO 15 MPH.
SATURDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF SHOWERS. LOWS
35-51. HIGHS 57-73. NORTH WINDS 5 TO 15 MPH.
SUNDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF SHOWERS. LOWS 36-51.
HIGHS 57-74.
MONDAY
MOSTLY CLEAR. LOWS 36-55. HIGHS 63-79.
CAZ232-011045-
IMPERIAL COUNTY AND EASTERN RIVERSIDE COUNTY-
334 PM PDT MON MAR 31 2025
TONIGHT
* SKY/WEATHER.....................PARTLY CLOUDY.
* MIN TEMPERATURE.................50-58.
* 24 HR TREND..................4 DEGREES COOLER.
* MAX HUMIDITY....................47-61 PCT.
* 24 HR TREND..................6 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 10 TO 20 MPH.
* WINDS...10000 FT MSL............WEST 50 TO 60 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
TUESDAY
* SKY/WEATHER.....................MOSTLY SUNNY. PATCHY BLOWING DUST
IN THE AFTERNOON.
* MAX TEMPERATURE.................65-75.
* 24 HR TREND..................8 DEGREES COOLER.
* MIN HUMIDITY....................12-27 PCT.
* 24 HR TREND..................13 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 15 TO 25 MPH.
* WINDS...10000 FT MSL............WEST 50 TO 60 MPH IN THE MORNING
BECOMING NORTHWEST AND BECOMING 25 TO 35 MPH IN THE AFTERNOON.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
TUESDAY NIGHT
* SKY/WEATHER.....................MOSTLY CLEAR. PATCHY BLOWING DUST
IN THE EVENING.
* MIN TEMPERATURE.................46-54.
* 24 HR TREND..................4 DEGREES COOLER.
* MAX HUMIDITY....................47-65 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 15 TO 25 MPH IN THE EVENING
BECOMING 5 TO 15 MPH AFTER MIDNIGHT.
* WINDS...10000 FT MSL............WEST 20 TO 30 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
WEDNESDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................63-72.
* 24 HR TREND..................3 DEGREES COOLER.
* MIN HUMIDITY....................15-27 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 10 TO 20 MPH.
* WINDS...10000 FT MSL............NORTHWEST 20 TO 30 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
EXTENDED
THURSDAY
MOSTLY CLEAR. LOWS 44-52. HIGHS 62-71. WEST WINDS
5 TO 15 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 46-57. HIGHS 69-78. NORTHWEST WINDS
5 TO 15 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 50-60. HIGHS 74-84. NORTHWEST
WINDS 10 TO 20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
SUNDAY
MOSTLY CLEAR. LOWS 54-61. HIGHS 76-85.
MONDAY
MOSTLY CLEAR. LOWS 54-62. HIGHS 78-87.
CAZ230-011045-
JOSHUA TREE NATIONAL PARK-
334 PM PDT MON MAR 31 2025
TONIGHT
* SKY/WEATHER.....................PARTLY CLOUDY.
* MIN TEMPERATURE.................38-50.
* 24 HR TREND..................6 DEGREES COOLER.
* MAX HUMIDITY....................50-68 PCT.
* 24 HR TREND..................7 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 15 TO 25 MPH.
* WINDS...10000 FT MSL............WEST 35 TO 45 MPH IN THE EVENING
BECOMING 45 TO 55 MPH AFTER MIDNIGHT.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
TUESDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................54-68.
* 24 HR TREND..................8 DEGREES COOLER.
* MIN HUMIDITY....................13-32 PCT.
* 24 HR TREND..................11 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 15 TO 25 MPH.
* WINDS...10000 FT MSL............WEST 35 TO 45 MPH IN THE MORNING
BECOMING NORTHWEST 10 TO 20 MPH IN THE AFTERNOON.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
TUESDAY NIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................33-45.
* 24 HR TREND..................5 DEGREES COOLER.
* MAX HUMIDITY....................51-75 PCT.
* 24 HR TREND..................5 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 15 TO 25 MPH.
* WINDS...10000 FT MSL............WEST 10 TO 20 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
WEDNESDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................52-65.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................16-30 PCT.
* 24 HR TREND..................LITTLE CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHWEST 10 TO 20 MPH.
* WINDS...10000 FT MSL............WEST 10 TO 20 MPH IN THE MORNING
BECOMING NORTHWEST 20 TO 30 MPH IN THE AFTERNOON.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
EXTENDED
THURSDAY
MOSTLY CLEAR. LOWS 33-48. HIGHS 52-65. SOUTHWEST
WINDS 5 TO 15 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 37-52. HIGHS 59-72. NORTHWEST WINDS
10 TO 20 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 43-54. HIGHS 63-76. NORTHWEST
WINDS 15 TO 25 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
SUNDAY
MOSTLY CLEAR. LOWS 44-55. HIGHS 65-78.
MONDAY
MOSTLY CLEAR. LOWS 47-57. HIGHS 68-81.
8 TO 10 DAY OUTLOOK
TUESDAY APRIL 8TH THROUGH THURSDAY APRIL
10TH: ABOVE NORMAL TEMPERATURES AND BELOW NORMAL PRECIPITATION.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page