912
FNUS55 KPSR 110736
FWFPSR
FIRE WEATHER PLANNING FORECAST FOR SOUTHWEST AND SOUTH-CENTRAL
ARIZONA AND SOUTHEAST CALIFORNIA
NATIONAL WEATHER SERVICE PHOENIX AZ
1236 AM MST SUN OCT 11 2026
DISCUSSION
ACTIVE WEATHER WILL CONTINUE THROUGH THE EARLY PART OF THE WEEK
WITH THE REMNANTS OF TROPICAL CYCLONE RACHEL AFFECTING THE AREA
TODAY FOLLOWED BY TROUGH OF LOW PRESSURE FOR MONDAY AND TUESDAY.
PERIODS OF RAIN AND WINDY CONDITIONS WILL AFFECT THE AREA TODAY
WITH LOCALLY MODERATE TO HEAVY RAINFALL POSSIBLE. MORE SCATTERED
SHOWER AND ISOLATED THUNDERSTORM ACTIVITY IS THEN ANTICIPATED FOR
MONDAY AND TUESDAY WITH A FOCUS OVER THE ARIZONA HIGH TERRAIN.
HUMIDITIES WILL REMAIN VERY ELEVATED THROUGH TUESDAY WITH MINRH
VALUES MOSTLY BETWEEN 40-60%, WHILE TEMPERATURES FALL TO WELL
BELOW NORMAL.
NOTE...ADDITIONAL FIRE WEATHER FORECAST INFORMATION CAN BE FOUND
IN THE AREA FORECAST DISCUSSION. SEE PRODUCT PHXAFDPSR.
AZZ132-111945-
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-
1236 AM MST SUN OCT 11 2026
TODAY
* SKY/WEATHER.....................PARTLY SUNNY. CHANCE OF SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS .
* MAX TEMPERATURE.................75-85.
* 24 HR TREND..................10 DEGREES COOLER.
* MIN HUMIDITY....................44-65 PCT.
* 24 HR TREND..................19 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 15 TO 25 MPH.
* WINDS...10000 FT MSL............SOUTH 45 TO 55 MPH IN THE MORNING
BECOMING 30 TO 40 MPH IN THE AFTERNOON.
* CHANCE OF PRECIP................50 PERCENT.
* CWR (>= 0.10 IN)................50 PERCENT WEST PORTION...40
PERCENT EAST PORTION.
* CHANCE OF THUNDER...............17 PERCENT.
* MIXING HEIGHT FOR PHOENIX.......9000 FT AGL.
* TRANSPORT WIND FOR PHOENIX......SOUTHWEST 27 KNOTS.
* DISPERSION FOR PHOENIX..........EXCELLENT.
TONIGHT
* SKY/WEATHER.....................PARTLY CLOUDY. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS.
* MIN TEMPERATURE.................60-70.
* 24 HR TREND..................5 DEGREES COOLER.
* MAX HUMIDITY....................78-100 PCT.
* 24 HR TREND..................5 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 25 TO 35 MPH.
* CHANCE OF PRECIP................20 PERCENT.
* CWR (>= 0.10 IN)................10 PERCENT WEST PORTION...20
PERCENT EAST PORTION.
* CHANCE OF THUNDER...............13 PERCENT.
MONDAY
* SKY/WEATHER.....................PARTLY SUNNY. CHANCE OF SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS.
* MAX TEMPERATURE.................72-81.
* 24 HR TREND..................3 DEGREES COOLER.
* MIN HUMIDITY....................46-64 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTH 25 TO 35 MPH.
* CHANCE OF PRECIP................40 PERCENT.
* CWR (>= 0.10 IN)................20 PERCENT.
* CHANCE OF THUNDER...............9 PERCENT.
* MIXING HEIGHT FOR PHOENIX.......7200 FT AGL.
* TRANSPORT WIND FOR PHOENIX......SOUTHWEST 20 KNOTS.
* DISPERSION FOR PHOENIX..........EXCELLENT.
EXTENDED
TUESDAY
MOSTLY CLEAR WITH CHANCE OF SHOWERS. LOWS 50-64. HIGHS
68-76. WEST WINDS 5 TO 15 MPH.
WEDNESDAY
CLEAR. LOWS 50-60. HIGHS 72-79. NORTH WINDS 5 TO
15 MPH.
THURSDAY
CLEAR. LOWS 52-64. HIGHS 78-85. NORTH WINDS 5 TO
15 MPH.
FRIDAY
CLEAR. LOWS 57-67. HIGHS 80-87.
SATURDAY
MOSTLY CLEAR. LOWS 58-68. HIGHS 78-86.
AZZ131-CAZ231-111945-
YUMA/MARTINEZ LAKE AND VICINITY/LOWER COLORADO RIVER VALLEY AZ-
LOWER COLORADO RIVER VALLEY CA-
1236 AM MST SUN OCT 11 2026 /1236 AM PDT SUN OCT 11 2026/
TODAY
* SKY/WEATHER.....................PARTLY SUNNY. CHANCE OF SHOWERS
IN THE MORNING. SLIGHT CHANCE OF THUNDERSTORMS . SLIGHT CHANCE OF
SHOWERS IN THE AFTERNOON. PATCHY BLOWING DUST IN THE AFTERNOON.
* MAX TEMPERATURE.................80-87.
* 24 HR TREND..................11 DEGREES COOLER.
* MIN HUMIDITY....................41-52 PCT.
* 24 HR TREND..................10 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..BREEZY. SOUTHWEST 20 TO 30 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 45 TO 55 MPH IN THE
MORNING BECOMING 30 TO 40 MPH IN THE AFTERNOON.
* CHANCE OF PRECIP................30 PERCENT.
* CWR (>= 0.10 IN)................10 PERCENT.
* CHANCE OF THUNDER...............12 PERCENT.
* MIXING HEIGHT FOR YUMA..........7000 FT AGL.
* TRANSPORT WIND FOR YUMA.........SOUTHWEST 18 KNOTS.
* DISPERSION FOR YUMA.............EXCELLENT.
TONIGHT
* SKY/WEATHER.....................PARTLY CLOUDY.
* MIN TEMPERATURE.................59-67.
* 24 HR TREND..................7 DEGREES COOLER.
* MAX HUMIDITY....................73-97 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 20 TO 30 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............5 PERCENT.
MONDAY
* SKY/WEATHER.....................PARTLY SUNNY. SLIGHT CHANCE OF
SHOWERS IN THE AFTERNOON.
* MAX TEMPERATURE.................76-82.
* 24 HR TREND..................4 DEGREES COOLER.
* MIN HUMIDITY....................43-52 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTH 25 TO 35 MPH.
* CHANCE OF PRECIP................0 PERCENT IN THE MORNING BECOMING
20 PERCENT IN THE AFTERNOON.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............2 PERCENT.
* MIXING HEIGHT FOR YUMA..........3100 FT AGL.
* TRANSPORT WIND FOR YUMA.........SOUTH 10 KNOTS.
* DISPERSION FOR YUMA.............FAIR.
EXTENDED
TUESDAY
MOSTLY CLEAR. LOWS 50-61. HIGHS 73-78. NORTHWEST WINDS
10 TO 20 MPH.
WEDNESDAY
CLEAR. LOWS 50-62. HIGHS 77-83. NORTH WINDS 10 TO
20 MPH.
THURSDAY
CLEAR. LOWS 53-67. HIGHS 83-88. NORTH WINDS 15 TO
25 MPH.
FRIDAY
CLEAR. LOWS 57-70. HIGHS 85-90.
SATURDAY
MOSTLY CLEAR. LOWS 58-70. HIGHS 84-89.
AZZ133-111945-
SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS-
SOUTHERN TONTO NF/WEST SAN CARLOS BIA/SOUTH PORTION FT APACHE BIA/
CAZ-
1236 AM MST SUN OCT 11 2026
TODAY
* SKY/WEATHER.....................MOSTLY CLOUDY. SHOWERS AND CHANCE
OF THUNDERSTORMS.
* MAX TEMPERATURE.................66-80.
* 24 HR TREND..................10 DEGREES COOLER.
* MIN HUMIDITY....................48-71 PCT.
* 24 HR TREND..................23 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 10 TO 20 MPH.
* WINDS...10000 FT MSL............SOUTH 40 TO 50 MPH.
* CHANCE OF PRECIP................90 PERCENT.
* CWR (>= 0.10 IN)................90 PERCENT.
* CHANCE OF THUNDER...............32 PERCENT.
TONIGHT
* SKY/WEATHER.....................PARTLY CLOUDY. CHANCE OF SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS.
* MIN TEMPERATURE.................52-64.
* 24 HR TREND..................4 DEGREES COOLER.
* MAX HUMIDITY....................81-100 PCT.
* 24 HR TREND..................4 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 35 TO 45 MPH.
* CHANCE OF PRECIP................50 PERCENT.
* CWR (>= 0.10 IN)................30 PERCENT.
* CHANCE OF THUNDER...............18 PERCENT.
MONDAY
* SKY/WEATHER.....................PARTLY SUNNY. CHANCE OF SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS.
* MAX TEMPERATURE.................63-77.
* 24 HR TREND..................3 DEGREES COOLER.
* MIN HUMIDITY....................50-75 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 30 TO 40 MPH.
* CHANCE OF PRECIP................60 PERCENT.
* CWR (>= 0.10 IN)................30 PERCENT.
* CHANCE OF THUNDER...............19 PERCENT.
EXTENDED
TUESDAY
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. LOWS
45-63. HIGHS 60-73. SOUTHWEST WINDS 5 TO 15 MPH.
WEDNESDAY
CLEAR. LOWS 42-56. HIGHS 63-75. NORTHWEST WINDS 5 TO
15 MPH.
THURSDAY
CLEAR. LOWS 42-61. HIGHS 67-80. NORTHEAST WINDS 15 TO
25 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 47-63. HIGHS 67-81.
SATURDAY
MOSTLY CLEAR. LOWS 45-63. HIGHS 64-78.
CAZ232-111945-
IMPERIAL COUNTY AND EASTERN RIVERSIDE COUNTY-
1236 AM PDT SUN OCT 11 2026
TODAY
* SKY/WEATHER.....................PARTLY SUNNY. CHANCE OF SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS IN THE MORNING. SLIGHT CHANCE
OF SHOWERS IN THE AFTERNOON.
* MAX TEMPERATURE.................71-83.
* 24 HR TREND..................14 DEGREES COOLER.
* MIN HUMIDITY....................41-66 PCT.
* 24 HR TREND..................23 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..BREEZY. SOUTHWEST 20 TO 30 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 45 TO 55 MPH IN THE
MORNING BECOMING 30 TO 40 MPH IN THE AFTERNOON.
* CHANCE OF PRECIP................40 PERCENT.
* CWR (>= 0.10 IN)................20 PERCENT.
* CHANCE OF THUNDER...............10 PERCENT.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................57-63.
* 24 HR TREND..................8 DEGREES COOLER.
* MAX HUMIDITY....................78-96 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 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...............2 PERCENT.
MONDAY
* SKY/WEATHER.....................MOSTLY SUNNY. SLIGHT CHANCE OF
SHOWERS IN THE AFTERNOON.
* MAX TEMPERATURE.................68-79.
* 24 HR TREND..................3 DEGREES COOLER.
* MIN HUMIDITY....................42-65 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 10 TO 20 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 30 TO 40 MPH.
* CHANCE OF PRECIP................0 PERCENT IN THE MORNING BECOMING
20 PERCENT IN THE AFTERNOON.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............1 PERCENT.
EXTENDED
TUESDAY
MOSTLY CLEAR. LOWS 51-59. HIGHS 67-77. NORTHWEST WINDS
10 TO 20 MPH.
WEDNESDAY
CLEAR. LOWS 52-62. HIGHS 72-83. NORTH WINDS 10 TO
20 MPH.
THURSDAY
CLEAR. LOWS 56-67. HIGHS 77-88. NORTH WINDS 15 TO
25 MPH.
FRIDAY
CLEAR. LOWS 60-69. HIGHS 79-91.
SATURDAY
MOSTLY CLEAR. LOWS 61-69. HIGHS 79-89.
CAZ230-111945-
JOSHUA TREE NATIONAL PARK-
1236 AM PDT SUN OCT 11 2026
TODAY
* SKY/WEATHER.....................MOSTLY CLOUDY. SLIGHT CHANCE OF
THUNDERSTORMS IN THE MORNING. CHANCE OF SHOWERS .
* MAX TEMPERATURE.................60-73.
* 24 HR TREND..................16 DEGREES COOLER.
* MIN HUMIDITY....................59-89 PCT.
* 24 HR TREND..................47 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..BREEZY. SOUTH 20 TO 30 MPH IN THE
MORNING BECOMING SOUTHWEST 10 TO 20 MPH IN THE AFTERNOON.
* WINDS...10000 FT MSL............SOUTHWEST 35 TO 45 MPH IN THE
MORNING BECOMING 25 TO 35 MPH IN THE AFTERNOON.
* CHANCE OF PRECIP................80 PERCENT.
* CWR (>= 0.10 IN)................80 PERCENT.
* CHANCE OF THUNDER...............13 PERCENT.
TONIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................43-57.
* 24 HR TREND..................9 DEGREES COOLER.
* MAX HUMIDITY....................83-100 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* 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...............1 PERCENT.
MONDAY
* SKY/WEATHER.....................MOSTLY SUNNY. SLIGHT CHANCE OF
SHOWERS IN THE AFTERNOON.
* MAX TEMPERATURE.................54-70.
* 24 HR TREND..................4 DEGREES COOLER.
* MIN HUMIDITY....................55-86 PCT.
* 24 HR TREND..................5 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 10 TO 20 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 20 TO 30 MPH IN THE
MORNING BECOMING 30 TO 40 MPH IN THE AFTERNOON.
* CHANCE OF PRECIP................0 PERCENT IN THE MORNING BECOMING
20 PERCENT IN THE AFTERNOON.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............2 PERCENT.
EXTENDED
TUESDAY
MOSTLY CLEAR. LOWS 38-52. HIGHS 56-69. NORTHWEST WINDS
5 TO 15 MPH.
WEDNESDAY
CLEAR. LOWS 43-56. HIGHS 61-74. NORTHWEST WINDS
15 TO 25 MPH.
THURSDAY
CLEAR. LOWS 47-59. HIGHS 65-78. NORTH WINDS 15 TO
25 MPH.
FRIDAY
CLEAR. LOWS 49-60. HIGHS 67-81.
SATURDAY
CLEAR. LOWS 51-60. HIGHS 68-80.
8 TO 10 DAY OUTLOOK
SUNDAY OCTOBER 18TH THROUGH TUESDAY
OCTOBER 20TH: NEAR TO ABOVE NORMAL TEMPERATURES AND NEAR MEDIAN
PRECIPITATION.
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