109
FNUS55 KPSR 261013
FWFPSR
FIRE WEATHER PLANNING FORECAST FOR SOUTHWEST AND SOUTH-CENTRAL
ARIZONA AND SOUTHEAST CALIFORNIA
NATIONAL WEATHER SERVICE PHOENIX AZ
313 AM MST THU MAR 26 2026
DISCUSSION
RECORD HEAT ALONG WITH DRY CONDITIONS WILL PERSIST THROUGH THE END
OF THIS WEEK. MINRHS WILL GENERALLY RANGE BETWEEN 5-10% EACH
AFTERNOON, WITH MAXRHS GENERALLY BETWEEN 20-40%. WINDS WILL TEND
TO FOLLOW TYPICAL DIURNAL TENDENCIES. ALTHOUGH, SOME AFTERNOON
BREEZES ARE EXPECTED AGAIN TODAY, WITH GUSTS UP TO 15-25 MPH.
..THUNDERSTORMS IMPLY GUSTY WINDS
NOTE...ADDITIONAL FIRE WEATHER FORECAST INFORMATION CAN BE FOUND
IN THE AREA FORECAST DISCUSSION. SEE PRODUCT PHXAFDPSR.
AZZ132-262215-
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-
313 AM MST THU MAR 26 2026
TODAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................94-100.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................5-9 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 5 TO 10 MPH IN THE MORNING
BECOMING WEST IN THE AFTERNOON.
* 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.
* MIXING HEIGHT FOR PHOENIX.......7000 FT AGL.
* TRANSPORT WIND FOR PHOENIX......WEST 5 KNOTS.
* DISPERSION FOR PHOENIX..........FAIR.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................60-70.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................16-26 PCT.
* 24 HR TREND..................7 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 10 MPH IN THE EVENING
BECOMING NORTHEAST AFTER MIDNIGHT.
* WINDS...10000 FT MSL............WEST 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.
FRIDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................97-102.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................4-8 PCT.
* 24 HR TREND..................LITTLE CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 5 TO 10 MPH IN THE MORNING
BECOMING SOUTHWEST IN THE AFTERNOON.
* 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.
* MIXING HEIGHT FOR PHOENIX.......7300 FT AGL.
* TRANSPORT WIND FOR PHOENIX......SOUTHWEST 4 KNOTS.
* DISPERSION FOR PHOENIX..........FAIR.
EXTENDED
SATURDAY
PARTLY CLOUDY. LOWS 65-75. HIGHS 92-100. EAST WINDS
15 TO 25 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
SUNDAY
PARTLY CLOUDY. LOWS 64-74. HIGHS 91-98. SOUTHEAST WINDS
5 TO 15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 63-73. HIGHS 91-97. SOUTH WINDS 5 TO
15 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS 58-69. HIGHS 84-92.
WEDNESDAY
PARTLY CLOUDY. LOWS 53-66. HIGHS 78-85.
AZZ131-CAZ231-262215-
YUMA/MARTINEZ LAKE AND VICINITY/LOWER COLORADO RIVER VALLEY AZ-
LOWER COLORADO RIVER VALLEY CA-
313 AM MST THU MAR 26 2026 /313 AM PDT THU MAR 26 2026/
TODAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................96-101.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................7-11 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 5 TO 10 MPH IN THE MORNING
BECOMING WEST IN THE AFTERNOON.
* 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 YUMA..........5000 FT AGL.
* TRANSPORT WIND FOR YUMA.........WEST 4 KNOTS.
* DISPERSION FOR YUMA.............FAIR.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................59-67.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................24-36 PCT.
* 24 HR TREND..................7 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 10 MPH IN THE
EVENING BECOMING MOSTLY DOWNSLOPE/DOWNVALLEY AFTER MIDNIGHT.
* WINDS...10000 FT MSL............LIGHT AND VARIABLE IN THE EVENING
BECOMING SOUTHWEST 5 TO 15 MPH AFTER MIDNIGHT.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
FRIDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................98-103.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................6-10 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 5 TO 10 MPH IN THE MORNING
BECOMING SOUTHWEST 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 YUMA..........6300 FT AGL.
* TRANSPORT WIND FOR YUMA.........SOUTHWEST 7 KNOTS.
* DISPERSION FOR YUMA.............GOOD.
EXTENDED
SATURDAY
PARTLY CLOUDY. LOWS 64-72. HIGHS 97-102. SOUTHEAST
WINDS 10 TO 20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
SUNDAY
PARTLY CLOUDY. LOWS 64-72. HIGHS 96-101. SOUTH WINDS
10 TO 20 MPH.
MONDAY
PARTLY CLOUDY. LOWS 63-68. HIGHS 94-99. SOUTH WINDS
10 TO 20 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS 59-68. HIGHS 87-92.
WEDNESDAY
PARTLY CLOUDY. LOWS 54-64. HIGHS 81-86.
AZZ133-262215-
SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS-
SOUTHERN TONTO NF/WEST SAN CARLOS BIA/SOUTH PORTION FT APACHE BIA/
CAZ-
313 AM MST THU MAR 26 2026
TODAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................80-95.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................6-10 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHEAST 5 TO 10 MPH IN THE
MORNING BECOMING WEST 5 TO 15 MPH IN THE AFTERNOON.
* WINDS...10000 FT MSL............WEST 20 TO 30 MPH IN THE MORNING
BECOMING 10 TO 20 MPH IN THE AFTERNOON.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
TONIGHT
* SKY/WEATHER.....................CLEAR.
* MIN TEMPERATURE.................50-65.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................18-30 PCT.
* 24 HR TREND..................7 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHWEST 5 TO 10 MPH IN THE
EVENING BECOMING NORTHEAST AFTER MIDNIGHT.
* 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.
FRIDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................82-97.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................6-10 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 5 TO 10 MPH IN THE MORNING
BECOMING SOUTH 5 TO 15 MPH IN THE AFTERNOON.
* WINDS...10000 FT MSL............LIGHT AND VARIABLE IN THE MORNING
BECOMING SOUTH 5 TO 15 MPH IN THE AFTERNOON.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
EXTENDED
SATURDAY
BREEZY. PARTLY CLOUDY. LOWS 51-69. HIGHS 74-92. EAST
WINDS 20 TO 30 MPH.
SUNDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 51-69. HIGHS 75-90. SOUTHEAST WINDS 5 TO
15 MPH.
MONDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 51-66. HIGHS 77-91. SOUTH WINDS 10 TO 20 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 49-66. HIGHS 72-87.
WEDNESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS. LOWS
42-62. HIGHS 63-78.
CAZ232-262215-
IMPERIAL COUNTY AND EASTERN RIVERSIDE COUNTY-
313 AM PDT THU MAR 26 2026
TODAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................91-100.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................8-12 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHWEST 5 TO 10 MPH IN THE
MORNING BECOMING SOUTH IN THE AFTERNOON.
* 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.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................63-71.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................22-40 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 10 MPH IN THE
EVENING BECOMING NORTHWEST 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.
FRIDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................93-102.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................7-11 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHEAST 5 TO 10 MPH IN THE
MORNING BECOMING SOUTH 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.
EXTENDED
SATURDAY
PARTLY CLOUDY. LOWS 65-74. HIGHS 92-101. SOUTHEAST
WINDS 5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
SUNDAY
PARTLY CLOUDY. LOWS 64-74. HIGHS 92-100. SOUTH WINDS
10 TO 20 MPH.
MONDAY
PARTLY CLOUDY. LOWS 64-71. HIGHS 89-98. SOUTH WINDS
10 TO 20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
TUESDAY
MOSTLY CLOUDY. LOWS 59-71. HIGHS 81-90.
WEDNESDAY
PARTLY CLOUDY. LOWS 55-66. HIGHS 76-85.
CAZ230-262215-
JOSHUA TREE NATIONAL PARK-
313 AM PDT THU MAR 26 2026
TODAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................82-95.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................8-12 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 10 MPH IN THE MORNING
BECOMING SOUTHEAST IN THE AFTERNOON.
* 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.
TONIGHT
* SKY/WEATHER.....................CLEAR.
* MIN TEMPERATURE.................58-67.
* 24 HR TREND..................3 DEGREES WARMER.
* MAX HUMIDITY....................24-32 PCT.
* 24 HR TREND..................LITTLE CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 10 MPH IN THE
EVENING BECOMING NORTHWEST 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.
FRIDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................82-96.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................7-12 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 5 TO 10 MPH IN THE MORNING
BECOMING SOUTH 5 TO 15 MPH IN THE AFTERNOON.
* 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.
EXTENDED
SATURDAY
PARTLY CLOUDY. LOWS 59-70. HIGHS 82-96. SOUTHWEST
WINDS 10 TO 20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
SUNDAY
PARTLY CLOUDY. LOWS 55-70. HIGHS 82-95. SOUTHWEST WINDS
10 TO 20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
MONDAY
PARTLY CLOUDY. LOWS 54-66. HIGHS 78-92. SOUTHWEST WINDS
10 TO 20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
TUESDAY
MOSTLY CLOUDY. LOWS 45-66. HIGHS 69-83.
WEDNESDAY
PARTLY CLOUDY. LOWS 44-58. HIGHS 63-79.
8 TO 10 DAY OUTLOOK
THURSDAY APRIL 2ND THROUGH SATURDAY APRIL
4TH: ABOVE NORMAL TEMPERATURES AND ABOVE MEDIAN PRECIPITATION.
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