263
FNUS55 KPSR 042123
FWFPSR
FIRE WEATHER PLANNING FORECAST FOR SOUTHWEST AND SOUTH-CENTRAL
ARIZONA AND SOUTHEAST CALIFORNIA
NATIONAL WEATHER SERVICE PHOENIX AZ
223 PM MST SUN OCT 4 2026
DISCUSSION
EXPECT EASTERLY WINDS TO REMAIN ELEVATED AROUND 8-15 MPH WITH
EARLY MORNING AND AFTERNOON GUSTS UP TO 20-35 MPH, AND LOCALLY
HIGHER GUSTS OF 35-40 MPH, TODAY MAINLY ACROSS SW AZ AND THE
EASTERN DISTRICTS. WINDS WILL BE A TOUCH WEAKER MONDAY AND THEN
WINDS WILL RETURN TO THEIR MORE TYPICAL LIGHT DIURNAL TENDENCIES
ON TUESDAY WITH ONLY MINOR AFTERNOON UPSLOPE GUSTINESS. DRY
CONDITIONS WITH ABOVE NORMAL TEMPERATURES WILL CONTINUE THROUGH
THE START OF THE WEEK. MINRHS WILL MOSTLY RANGE FROM 15-25%
ACROSS THE WESTERN DISTRICTS TO 20-35% ACROSS EASTERN DISTRICTS
WITH FAIR TO GOOD OVERNIGHT RECOVERY (35-60%) AREA-WIDE. NO
WETTING RAIN EXPECTED.
..THUNDERSTORMS IMPLY GUSTY WINDS
NOTE...ADDITIONAL FIRE WEATHER FORECAST INFORMATION CAN BE FOUND
IN THE AREA FORECAST DISCUSSION. SEE PRODUCT PHXAFDPSR.
AZZ132-050930-
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-
223 PM MST SUN OCT 4 2026
TONIGHT
* SKY/WEATHER.....................CLEAR.
* MIN TEMPERATURE.................73-83.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................37-52 PCT.
* 24 HR TREND..................5 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 10 TO 20 MPH.
* WINDS...10000 FT MSL............EAST 15 TO 25 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
MONDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................92-100.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................22-26 PCT.
* 24 HR TREND..................3 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 10 TO 20 MPH.
* 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.......9400 FT AGL.
* TRANSPORT WIND FOR PHOENIX......SOUTHEAST 10 KNOTS.
* DISPERSION FOR PHOENIX..........VERY GOOD.
MONDAY NIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................72-82.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................41-56 PCT.
* 24 HR TREND..................4 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHEAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTH 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.
TUESDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................93-101.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................19-25 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHEAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 5 TO 15 MPH IN THE
MORNING BECOMING LIGHT AND VARIABLE IN THE AFTERNOON.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
* MIXING HEIGHT FOR PHOENIX.......8000 FT AGL.
* TRANSPORT WIND FOR PHOENIX......SOUTHWEST 2 KNOTS.
* DISPERSION FOR PHOENIX..........MARGINAL.
EXTENDED
WEDNESDAY
CLEAR. LOWS 73-83. HIGHS 95-103. NORTHEAST WINDS
5 TO 10 MPH.
THURSDAY
CLEAR. LOWS 73-83. HIGHS 95-103. EAST WINDS 5 TO
15 MPH.
FRIDAY
CLEAR. LOWS 71-81. HIGHS 92-101. EAST WINDS 10 TO
20 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 69-79. HIGHS 87-94.
SUNDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS. LOWS
65-75. HIGHS 82-90.
AZZ131-CAZ231-050930-
YUMA/MARTINEZ LAKE AND VICINITY/LOWER COLORADO RIVER VALLEY AZ-
LOWER COLORADO RIVER VALLEY CA-
223 PM MST SUN OCT 4 2026 /223 PM PDT SUN OCT 4 2026/
TONIGHT
* SKY/WEATHER.....................CLEAR.
* MIN TEMPERATURE.................75-82.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................35-46 PCT.
* 24 HR TREND..................3 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHEAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............EAST 15 TO 25 MPH IN THE EVENING
BECOMING 5 TO 15 MPH AFTER MIDNIGHT.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............1 PERCENT.
MONDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................97-102.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................19-23 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............NORTH 5 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
* MIXING HEIGHT FOR YUMA..........11900 FT AGL.
* TRANSPORT WIND FOR YUMA.........NORTH 4 KNOTS.
* DISPERSION FOR YUMA.............FAIR.
MONDAY NIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................73-80.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................39-50 PCT.
* 24 HR TREND..................4 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHEAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHWEST 5 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
TUESDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................98-103.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................17-21 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 5 TO 15 MPH.
* 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.
* MIXING HEIGHT FOR YUMA..........11300 FT AGL.
* TRANSPORT WIND FOR YUMA.........WEST 7 KNOTS.
* DISPERSION FOR YUMA.............VERY GOOD.
EXTENDED
WEDNESDAY
CLEAR. LOWS 74-81. HIGHS 101-106. NORTH WINDS 5 TO
10 MPH.
THURSDAY
CLEAR. LOWS 75-81. HIGHS 101-106. NORTHEAST WINDS
5 TO 10 MPH.
FRIDAY
CLEAR. LOWS 73-81. HIGHS 98-103. SOUTHEAST WINDS 5 TO
15 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 70-78. HIGHS 93-98.
SUNDAY
MOSTLY CLEAR. LOWS 66-76. HIGHS 88-93.
AZZ133-050930-
SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS-
SOUTHERN TONTO NF/WEST SAN CARLOS BIA/SOUTH PORTION FT APACHE BIA/
CAZ-
223 PM MST SUN OCT 4 2026
TONIGHT
* SKY/WEATHER.....................CLEAR.
* MIN TEMPERATURE.................56-73.
* 24 HR TREND..................3 DEGREES WARMER.
* MAX HUMIDITY....................50-78 PCT.
* 24 HR TREND..................4 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 10 TO 20 MPH.
* WINDS...10000 FT MSL............EAST 25 TO 35 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
MONDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................75-92.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................25-40 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 10 TO 20 MPH.
* 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.
MONDAY NIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................55-72.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................55-83 PCT.
* 24 HR TREND..................4 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHEAST 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.
TUESDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................77-93.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................23-37 PCT.
* 24 HR TREND..................3 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 5 TO 15 MPH IN THE MORNING
BECOMING SOUTHEAST 5 TO 10 MPH IN THE AFTERNOON.
* WINDS...10000 FT MSL............NORTHEAST 5 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
EXTENDED
WEDNESDAY
MOSTLY CLEAR. LOWS 56-73. HIGHS 78-95. NORTHEAST
WINDS 5 TO 15 MPH.
THURSDAY
CLEAR. LOWS 56-73. HIGHS 77-95. EAST WINDS 5 TO
15 MPH.
FRIDAY
CLEAR. LOWS 56-73. HIGHS 75-92. EAST WINDS 10 TO
20 MPH.
SATURDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 56-72. HIGHS 72-88.
SUNDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS 54-71. HIGHS 69-84.
CAZ232-050930-
IMPERIAL COUNTY AND EASTERN RIVERSIDE COUNTY-
223 PM PDT SUN OCT 4 2026
TONIGHT
* SKY/WEATHER.....................CLEAR.
* MIN TEMPERATURE.................75-82.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................34-51 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHEAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............EAST 15 TO 25 MPH IN THE EVENING
BECOMING 5 TO 15 MPH AFTER MIDNIGHT.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
MONDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................91-101.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................19-27 PCT.
* 24 HR TREND..................3 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHEAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............EAST 5 TO 15 MPH IN THE MORNING
BECOMING LIGHT AND VARIABLE IN THE AFTERNOON.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
MONDAY NIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................74-81.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................36-54 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............LIGHT AND VARIABLE IN THE EVENING
BECOMING NORTHWEST 5 TO 15 MPH AFTER MIDNIGHT.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
TUESDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................93-103.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................16-25 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............NORTHWEST 10 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
EXTENDED
WEDNESDAY
CLEAR. LOWS 75-83. HIGHS 96-106. NORTHWEST WINDS
5 TO 10 MPH.
THURSDAY
CLEAR. LOWS 77-83. HIGHS 96-106. NORTH WINDS 5 TO
15 MPH.
FRIDAY
CLEAR. LOWS 74-82. HIGHS 94-104. SOUTHWEST WINDS 5 TO
15 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 70-79. HIGHS 88-99.
SUNDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF SHOWERS. LOWS 66-75.
HIGHS 83-94.
CAZ230-050930-
JOSHUA TREE NATIONAL PARK-
223 PM PDT SUN OCT 4 2026
TONIGHT
* SKY/WEATHER.....................CLEAR.
* MIN TEMPERATURE.................64-75.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................39-52 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHEAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............SOUTHEAST 10 TO 20 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............1 PERCENT.
MONDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................81-93.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................23-31 PCT.
* 24 HR TREND..................3 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHEAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............EAST 5 TO 15 MPH IN THE MORNING
BECOMING LIGHT AND VARIABLE IN THE AFTERNOON.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............1 PERCENT.
MONDAY NIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................65-74.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................41-50 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..LIGHT AND VARIABLE IN THE EVENING
BECOMING NORTHWEST 5 TO 10 MPH AFTER MIDNIGHT.
* WINDS...10000 FT MSL............NORTHWEST 5 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
TUESDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................83-95.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................20-27 PCT.
* 24 HR TREND..................4 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTH 5 TO 10 MPH IN THE MORNING
BECOMING NORTHEAST IN THE AFTERNOON.
* WINDS...10000 FT MSL............NORTH 5 TO 15 MPH IN THE MORNING
BECOMING LIGHT AND VARIABLE IN THE AFTERNOON.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* CHANCE OF THUNDER...............0 PERCENT.
EXTENDED
WEDNESDAY
CLEAR. LOWS 66-77. HIGHS 86-99. NORTH WINDS 5 TO
15 MPH.
THURSDAY
CLEAR. LOWS 67-77. HIGHS 87-99. NORTH WINDS 5 TO
15 MPH.
FRIDAY
CLEAR. LOWS 63-76. HIGHS 84-97. SOUTHWEST WINDS 5 TO
15 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 58-74. HIGHS 78-92.
SUNDAY
MOSTLY CLEAR. LOWS 54-69. HIGHS 73-86.
8 TO 10 DAY OUTLOOK
MONDAY OCTOBER 12TH THROUGH WEDNESDAY
OCTOBER 14TH: ABOVE NORMAL TEMPERATURES AND ABOVE MEDIAN
PRECIPITATION.
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