783
FNUS55 KPSR 311100
FWFPSR
FIRE WEATHER PLANNING FORECAST FOR SOUTHWEST AND SOUTH-CENTRAL
ARIZONA AND SOUTHEAST CALIFORNIA
NATIONAL WEATHER SERVICE PHOENIX AZ
400 AM MST MON MAR 31 2025
DISCUSSION
SEASONABLY WARM TEMPERATURES CAN BE EXPECTED TODAY BEFORE AN
UNSETTLED WEATHER PATTERN TAKES HOLD TUESDAY AND COOLS
TEMPERATURES BELOW NORMAL. EXPECT BREEZY CONDITIONS THIS AFTERNOON
INTO THE EVENING, WITH GUSTS TO BETWEEN 25-35 MPH ACROSS THE
WESTERN DESERTS AND HIGH TERRAIN EAST OF PHOENIX. WINDS WILL BE
SLIGHTLY STRONGER TUESDAY, CAUSING ELEVATED FIRE WEATHER
CONDITIONS PARTICULARLY FOR THE HIGH TERRAIN OF NORTHEASTERN
MARICOPA AND SOUTHERN GILA COUNTIES. EXPECT MINRHS BETWEEN 30-40%
TODAY ACROSS THE WESTERN DISTRICTS AND IN THE UPPER TEENS TO
AROUND 25% ACROSS SOUTH-CENTRAL AZ. MINRHS WILL FALL MOSTLY
BETWEEN 15-25% AREAWIDE TUESDAY.
NOTE...ADDITIONAL FIRE WEATHER FORECAST INFORMATION CAN BE FOUND
IN THE AREA FORECAST DISCUSSION. SEE PRODUCT PHXAFDPSR.
AZZ132-312300-
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-
400 AM MST MON MAR 31 2025
TODAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................76-84.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................21-28 PCT.
* 24 HR TREND..................9 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............WEST 25 TO 35 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* MIXING HEIGHT FOR PHOENIX.......7200 FT AGL.
* TRANSPORT WIND FOR PHOENIX......SOUTHWEST 20 KNOTS.
* DISPERSION FOR PHOENIX..........EXCELLENT.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................51-61.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................47-62 PCT.
* 24 HR TREND..................5 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............WEST 30 TO 40 MPH IN THE EVENING
BECOMING 40 TO 50 MPH AFTER MIDNIGHT.
* 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....................15-19 PCT.
* 24 HR TREND..................8 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.......8200 FT AGL.
* TRANSPORT WIND FOR PHOENIX......WEST 21 KNOTS.
* DISPERSION FOR PHOENIX..........EXCELLENT.
EXTENDED
WEDNESDAY
COOLER. PARTLY CLOUDY. LOWS 43-53. HIGHS 61-69. WEST
WINDS 10 TO 20 MPH.
THURSDAY
PARTLY CLOUDY. LOWS 43-53. HIGHS 64-72. SOUTHWEST
WINDS 5 TO 10 MPH.
FRIDAY
PARTLY CLOUDY. LOWS 46-56. HIGHS 68-75. WEST WINDS 5 TO
15 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 47-57. HIGHS 74-80.
SUNDAY
MOSTLY CLEAR. LOWS 50-60. HIGHS 74-82.
AZZ131-CAZ231-312300-
YUMA/MARTINEZ LAKE AND VICINITY/LOWER COLORADO RIVER VALLEY AZ-
LOWER COLORADO RIVER VALLEY CA-
400 AM MST MON MAR 31 2025 /400 AM PDT MON MAR 31 2025/
TODAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................80-85.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................28-32 PCT.
* 24 HR TREND..................9 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 10 MPH IN THE MORNING
BECOMING 10 TO 20 MPH IN THE AFTERNOON.
* WINDS...10000 FT MSL............WEST 20 TO 30 MPH IN THE MORNING
BECOMING 30 TO 40 MPH IN THE AFTERNOON.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* MIXING HEIGHT FOR YUMA..........5400 FT AGL.
* TRANSPORT WIND FOR YUMA.........WEST 29 KNOTS.
* DISPERSION FOR YUMA.............EXCELLENT.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR. PATCHY BLOWING DUST
IN THE EVENING.
* MIN TEMPERATURE.................52-57.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................50-61 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. PATCHY BLOWING DUST
IN THE AFTERNOON.
* MAX TEMPERATURE.................70-75.
* 24 HR TREND..................9 DEGREES COOLER.
* MIN HUMIDITY....................14-22 PCT.
* 24 HR TREND..................12 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 10 TO 20 MPH.
* WINDS...10000 FT MSL............WEST 45 TO 55 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..........7000 FT AGL.
* TRANSPORT WIND FOR YUMA.........WEST 29 KNOTS.
* DISPERSION FOR YUMA.............EXCELLENT.
EXTENDED
WEDNESDAY
MOSTLY CLEAR. LOWS 44-53. HIGHS 67-72. WEST WINDS
10 TO 20 MPH.
THURSDAY
PARTLY CLOUDY. LOWS 44-50. HIGHS 67-72. SOUTHWEST
WINDS 5 TO 15 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 46-52. HIGHS 73-78. NORTHWEST WINDS
5 TO 15 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 49-57. HIGHS 78-83.
SUNDAY
MOSTLY CLEAR. LOWS 52-57. HIGHS 78-83.
AZZ133-312300-
SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS-
SOUTHERN TONTO NF/WEST SAN CARLOS BIA/SOUTH PORTION FT APACHE BIA/
CAZ-
400 AM MST MON MAR 31 2025
TODAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................66-79.
* 24 HR TREND..................3 DEGREES WARMER.
* MIN HUMIDITY....................17-27 PCT.
* 24 HR TREND..................7 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............WEST 30 TO 40 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
TONIGHT
* SKY/WEATHER.....................PARTLY CLOUDY.
* MIN TEMPERATURE.................43-54.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................57-74 PCT.
* 24 HR TREND..................13 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.................55-69.
* 24 HR TREND..................10 DEGREES COOLER.
* MIN HUMIDITY....................15-25 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 15 TO 25 MPH.
* WINDS...10000 FT MSL............WEST 40 TO 50 MPH IN THE MORNING
BECOMING SOUTHWEST 30 TO 40 MPH IN THE AFTERNOON.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
EXTENDED
WEDNESDAY
COOLER. PARTLY CLOUDY WITH CHANCE OF SHOWERS AND
SNOW SHOWERS. LOWS 31-45. HIGHS 47-61. SOUTHWEST WINDS 10 TO
20 MPH.
THURSDAY
PARTLY CLOUDY. LOWS 31-49. HIGHS 52-67. SOUTH WINDS
5 TO 15 MPH.
FRIDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS. LOWS
35-49. HIGHS 54-68. WEST WINDS 5 TO 15 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 35-50. HIGHS 58-73.
SUNDAY
MOSTLY CLEAR. LOWS 36-52. HIGHS 59-74.
CAZ232-312300-
IMPERIAL COUNTY AND EASTERN RIVERSIDE COUNTY-
400 AM PDT MON MAR 31 2025
TODAY
* SKY/WEATHER.....................PARTLY SUNNY. PATCHY BLOWING DUST
IN THE AFTERNOON.
* MAX TEMPERATURE.................73-83.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................27-43 PCT.
* 24 HR TREND..................8 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 10 MPH IN THE MORNING
BECOMING 10 TO 20 MPH IN THE AFTERNOON.
* WINDS...10000 FT MSL............WEST 20 TO 30 MPH IN THE MORNING
BECOMING 30 TO 40 MPH IN THE AFTERNOON.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
TONIGHT
* SKY/WEATHER.....................PARTLY CLOUDY. PATCHY BLOWING
DUST IN THE EVENING.
* MIN TEMPERATURE.................50-57.
* 24 HR TREND..................4 DEGREES COOLER.
* MAX HUMIDITY....................47-62 PCT.
* 24 HR TREND..................6 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 10 TO 20 MPH.
* WINDS...10000 FT MSL............WEST 40 TO 50 MPH IN THE EVENING
BECOMING 55 TO 65 MPH AFTER MIDNIGHT.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
TUESDAY
* SKY/WEATHER.....................MOSTLY SUNNY. PATCHY BLOWING DUST
IN THE AFTERNOON.
* MAX TEMPERATURE.................65-74.
* 24 HR TREND..................8 DEGREES COOLER.
* MIN HUMIDITY....................13-28 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 30 TO 40 MPH IN THE AFTERNOON.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
EXTENDED
WEDNESDAY
MOSTLY CLEAR. LOWS 44-55. HIGHS 63-73. WEST WINDS
15 TO 25 MPH.
THURSDAY
PARTLY CLOUDY. LOWS 44-52. HIGHS 62-72. SOUTHWEST
WINDS 5 TO 15 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 47-57. HIGHS 69-78. NORTHWEST WINDS
5 TO 15 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 50-59. HIGHS 74-83.
SUNDAY
MOSTLY CLEAR. LOWS 54-60. HIGHS 74-84.
CAZ230-312300-
JOSHUA TREE NATIONAL PARK-
400 AM PDT MON MAR 31 2025
TODAY
* SKY/WEATHER.....................PARTLY SUNNY.
* MAX TEMPERATURE.................61-77.
* 24 HR TREND..................3 DEGREES COOLER.
* MIN HUMIDITY....................24-45 PCT.
* 24 HR TREND..................6 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 10 TO 20 MPH.
* WINDS...10000 FT MSL............WEST 25 TO 35 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
TONIGHT
* SKY/WEATHER.....................PARTLY CLOUDY.
* MIN TEMPERATURE.................38-51.
* 24 HR TREND..................5 DEGREES COOLER.
* MAX HUMIDITY....................51-73 PCT.
* 24 HR TREND..................5 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 50 TO 60 MPH AFTER MIDNIGHT.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
TUESDAY
* SKY/WEATHER.....................PARTLY SUNNY.
* MAX TEMPERATURE.................53-69.
* 24 HR TREND..................8 DEGREES COOLER.
* MIN HUMIDITY....................14-33 PCT.
* 24 HR TREND..................11 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 NORTHWEST 15 TO 25 MPH IN THE AFTERNOON.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
EXTENDED
WEDNESDAY
MOSTLY CLEAR. LOWS 34-47. HIGHS 52-66. WEST WINDS
15 TO 25 MPH.
THURSDAY
PARTLY CLOUDY. LOWS 34-48. HIGHS 52-65. WEST WINDS
5 TO 15 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 37-52. HIGHS 59-71. NORTHWEST WINDS
10 TO 20 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 42-54. HIGHS 63-76.
SUNDAY
MOSTLY CLEAR. LOWS 44-54. HIGHS 64-77.
8 TO 10 DAY OUTLOOK
MONDAY APRIL 7TH THROUGH WEDNESDAY APRIL
9TH: ABOVE NORMAL TEMPERATURES AND NEAR MEDIAN PRECIPITATION.
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