383
FNUS55 KPSR 271022
FWFPSR
FIRE WEATHER PLANNING FORECAST FOR SOUTHWEST AND SOUTH-CENTRAL
ARIZONA AND SOUTHEAST CALIFORNIA
NATIONAL WEATHER SERVICE PHOENIX AZ
322 AM MST FRI MAR 27 2026
DISCUSSION
UNSEASONABLY HOT TEMPERATURES WITH VERY DRY CONDITIONS WILL
CONTINUE THROUGH AT LEAST THE START OF THE WEEKEND. MINRH VALUES
WILL RUN AROUND 5-10% TODAY BEFORE INCREASING TO 10-20% STARTING
SATURDAY. MAXRHS WILL BE AROUND 20-40%. WINDS WILL BE LIGHT FOR
MOST OF TODAY AND FOLLOW TYPICAL DIURNAL TENDENCIES. STRONGER
WINDS (GUSTS 25-35 MPH) ENTER THE PICTURE LATE TONIGHT INTO
SATURDAY, FOLLOWING A DRY FRONT FROM THE EAST, MAINLY FOR AREAS
EAST OF THE COLORADO RIVER. THERE ARE GOOD CHANCES FOR HIGHER
GUSTS UPWARDS OF 40+ MPH (~80% CHANCE) IN THE MOUNTAINOUS AREAS
EAST OF PHOENIX. ADDITIONALLY, WINDS WILL BE STRONGEST SATURDAY
MORNING AND THEN SHOULD GRADUALLY SUBSIDE MIDDAY THROUGH THE
AFTERNOON. ALTHOUGH MINIMUM RH VALUES ARE FORECAST TO STAY ABOVE
THE CRITICAL THRESHOLD (15%) MOST OF THE DAY, THERE MAY STILL BE
PERIODS OF ELEVATED, TO NEAR CRITICAL, FIRE WEATHER CONDITIONS
SATURDAY DUE PRIMARILY TO THE WIDESPREAD BREEZY EASTERLY WINDS AND
UNSEASONABLE HOT TEMPERATURES.
NOTE...ADDITIONAL FIRE WEATHER FORECAST INFORMATION CAN BE FOUND
IN THE AREA FORECAST DISCUSSION. SEE PRODUCT PHXAFDPSR.
AZZ132-272230-
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-
322 AM MST FRI MAR 27 2026
TODAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................96-102.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................4-8 PCT.
* 24 HR TREND..................6 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 5 TO 10 MPH IN THE MORNING
BECOMING SOUTHWEST IN THE AFTERNOON.
* WINDS...10000 FT MSL............SOUTH 10 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
* MIXING HEIGHT FOR PHOENIX.......7100 FT AGL.
* TRANSPORT WIND FOR PHOENIX......SOUTH 4 KNOTS.
* DISPERSION FOR PHOENIX..........FAIR.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................64-74.
* 24 HR TREND..................3 DEGREES WARMER.
* MAX HUMIDITY....................20-33 PCT.
* 24 HR TREND..................6 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 10 MPH IN THE EVENING
BECOMING EAST 5 TO 15 MPH AFTER MIDNIGHT.
* WINDS...10000 FT MSL............SOUTHWEST 10 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
SATURDAY
* SKY/WEATHER.....................PARTLY SUNNY.
* MAX TEMPERATURE.................92-100.
* 24 HR TREND..................4 DEGREES COOLER.
* MIN HUMIDITY....................10-14 PCT.
* 24 HR TREND..................6 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 10 TO 20 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 10 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
* MIXING HEIGHT FOR PHOENIX.......5200 FT AGL.
* TRANSPORT WIND FOR PHOENIX......SOUTHEAST 11 KNOTS.
* DISPERSION FOR PHOENIX..........GOOD.
EXTENDED
SUNDAY
PARTLY CLOUDY. LOWS 64-74. HIGHS 91-97. SOUTH WINDS
5 TO 15 MPH.
MONDAY
PARTLY CLOUDY. LOWS 64-74. HIGHS 89-96. SOUTH WINDS
10 TO 20 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS 59-70. HIGHS 84-92. SOUTHWEST
WINDS 10 TO 20 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 54-66. HIGHS 79-86.
THURSDAY
MOSTLY CLEAR. LOWS 54-64. HIGHS 81-88.
AZZ131-CAZ231-272230-
YUMA/MARTINEZ LAKE AND VICINITY/LOWER COLORADO RIVER VALLEY AZ-
LOWER COLORADO RIVER VALLEY CA-
322 AM MST FRI MAR 27 2026 /322 AM PDT FRI MAR 27 2026/
TODAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................98-103.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................6-10 PCT.
* 24 HR TREND..................8 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 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 YUMA..........6800 FT AGL.
* TRANSPORT WIND FOR YUMA.........SOUTH 6 KNOTS.
* DISPERSION FOR YUMA.............GOOD.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................63-70.
* 24 HR TREND..................3 DEGREES WARMER.
* MAX HUMIDITY....................22-33 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 10 MPH IN THE
EVENING BECOMING EAST AFTER MIDNIGHT.
* 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.
SATURDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................97-102.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................10-14 PCT.
* 24 HR TREND..................3 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHEAST 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.
* MIXING HEIGHT FOR YUMA..........7500 FT AGL.
* TRANSPORT WIND FOR YUMA.........EAST 5 KNOTS.
* DISPERSION FOR YUMA.............FAIR.
EXTENDED
SUNDAY
PARTLY CLOUDY. LOWS 64-73. HIGHS 95-100. SOUTH WINDS
10 TO 20 MPH.
MONDAY
PARTLY CLOUDY. LOWS 64-69. HIGHS 92-97. SOUTH WINDS
10 TO 20 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS 61-69. HIGHS 86-91. SOUTHWEST
WINDS 15 TO 25 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 54-64. HIGHS 82-87.
THURSDAY
MOSTLY CLEAR. LOWS 54-60. HIGHS 83-88.
AZZ133-272230-
SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS-
SOUTHERN TONTO NF/WEST SAN CARLOS BIA/SOUTH PORTION FT APACHE BIA/
CAZ-
322 AM MST FRI MAR 27 2026
TODAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................82-97.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................6-10 PCT.
* 24 HR TREND..................8 PCT WETTER.
* 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............SOUTHEAST 10 TO 20 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................49-64.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................33-49 PCT.
* 24 HR TREND..................19 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHEAST 10 TO 20 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.
SATURDAY
* SKY/WEATHER.....................PARTLY SUNNY.
* MAX TEMPERATURE.................73-90.
* 24 HR TREND..................9 DEGREES COOLER.
* MIN HUMIDITY....................14-23 PCT.
* 24 HR TREND..................11 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 15 TO 25 MPH IN THE MORNING
BECOMING SOUTHEAST 5 TO 15 MPH IN THE AFTERNOON.
* WINDS...10000 FT MSL............SOUTHWEST 5 TO 15 MPH IN THE
MORNING BECOMING WEST IN THE AFTERNOON.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
EXTENDED
SUNDAY
PARTLY CLOUDY. LOWS 52-67. HIGHS 77-92. SOUTHEAST WINDS
5 TO 15 MPH.
MONDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS. LOWS
51-66. HIGHS 76-91. SOUTHWEST WINDS 10 TO 20 MPH.
TUESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS. LOWS
49-65. HIGHS 72-87. SOUTHWEST WINDS 15 TO 25 MPH.
WEDNESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS. LOWS
42-62. HIGHS 63-79.
THURSDAY
MOSTLY CLEAR. LOWS 42-57. HIGHS 69-83.
CAZ232-272230-
IMPERIAL COUNTY AND EASTERN RIVERSIDE COUNTY-
322 AM PDT FRI MAR 27 2026
TODAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................93-102.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................7-11 PCT.
* 24 HR TREND..................9 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 5 TO 10 MPH IN THE MORNING
BECOMING SOUTHEAST 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.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................64-72.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................16-34 PCT.
* 24 HR TREND..................5 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 10 MPH IN THE
EVENING BECOMING NORTHWEST AFTER MIDNIGHT.
* WINDS...10000 FT MSL............SOUTHWEST 20 TO 30 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
SATURDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................92-100.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................9-13 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHEAST 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.
EXTENDED
SUNDAY
PARTLY CLOUDY. LOWS 64-75. HIGHS 91-101. SOUTH WINDS
10 TO 20 MPH.
MONDAY
PARTLY CLOUDY. LOWS 64-72. HIGHS 87-97. SOUTH WINDS
10 TO 20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
TUESDAY
MOSTLY CLOUDY. LOWS 59-72. HIGHS 80-90. WEST WINDS
15 TO 25 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 55-66. HIGHS 77-87.
THURSDAY
MOSTLY CLEAR. LOWS 55-62. HIGHS 78-87.
CAZ230-272230-
JOSHUA TREE NATIONAL PARK-
322 AM PDT FRI MAR 27 2026
TODAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................83-96.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................7-11 PCT.
* 24 HR TREND..................9 PCT WETTER.
* 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.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................59-68.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................15-21 PCT.
* 24 HR TREND..................8 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 10 TO 20 MPH IN THE
EVENING BECOMING 20 TO 30 MPH 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.................82-95.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................8-12 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............WEST 20 TO 30 MPH IN THE MORNING
BECOMING SOUTHWEST 10 TO 20 MPH IN THE AFTERNOON.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
EXTENDED
SUNDAY
MOSTLY CLEAR. LOWS 56-70. HIGHS 81-96. SOUTHWEST WINDS
10 TO 20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
MONDAY
PARTLY CLOUDY. LOWS 54-66. HIGHS 77-91. SOUTHWEST WINDS
15 TO 25 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
TUESDAY
MOSTLY CLOUDY. LOWS 45-66. HIGHS 68-83. WEST WINDS
15 TO 25 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 43-58. HIGHS 65-80.
THURSDAY
MOSTLY CLEAR. LOWS 43-55. HIGHS 67-81.
8 TO 10 DAY OUTLOOK
FRIDAY APRIL 3RD THROUGH SUNDAY APRIL 5TH:
ABOVE NORMAL TEMPERATURES AND BELOW MEDIAN PRECIPITATION.
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