Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Phoenix, AZ
Issued by NWS Phoenix, AZ
445 FNUS55 KPSR 010709 FWFPSR Fire Weather Planning Forecast for Southwest and South-Central Arizona and Southeast California National Weather Service Phoenix AZ 1209 AM MST Tue Sep 1 2026 .DISCUSSION... After abundant wetting rainfall across southcentral AZ, drier conditions will move in to the region beginning today with rain chances falling below 10%. Expect MinRHs of 15-25% across the western districts to 30-50% over the eastern districts both today and Wednesday. Overnight recovery will range from poor across SE California to good across south-central AZ. Temperatures will remain near to below normal through mid-week. ...Thunderstorms imply gusty winds... Note...Additional Fire Weather Forecast information can be found in the Area Forecast Discussion. See product PHXAFDPSR. AZZ132-011915- 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- 1209 AM MST Tue Sep 1 2026 .TODAY... * Sky/weather.....................Sunny. * Max Temperature.................95-103. * 24 hr trend..................3 degrees warmer. * Min Humidity....................22-32 pct. * 24 hr trend..................9 pct drier. * Winds - 20 foot...Slope/Valley..Southeast 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...............5 percent. * Mixing Height for Phoenix.......10200 ft AGL. * Transport Wind for Phoenix......Southwest 7 knots. * Dispersion for Phoenix..........Very good. .TONIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................75-85. * 24 hr trend..................Little change. * Max Humidity....................39-69 pct. * 24 hr trend..................11 pct drier. * Winds - 20 foot...Slope/Valley..Southwest 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...............3 percent. .WEDNESDAY... * Sky/weather.....................Sunny. * Max Temperature.................96-102. * 24 hr trend..................Little change. * Min Humidity....................19-31 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..Southwest 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...............2 percent. * Mixing Height for Phoenix.......11500 ft AGL. * Transport Wind for Phoenix......Southwest 13 knots. * Dispersion for Phoenix..........Excellent. .EXTENDED... .THURSDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 74-84. Highs 95-102. South winds 5 to 15 mph. .FRIDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 74-84. Highs 94-101. South winds 10 to 20 mph. .SATURDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows 74-84. Highs 92-99. Southwest winds 5 to 15 mph. .SUNDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 74-84. Highs 94-101. .MONDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 76-86. Highs 96-103. $$ AZZ131-CAZ231-011915- Yuma/Martinez Lake and Vicinity/Lower Colorado River Valley AZ- Lower Colorado River Valley CA- 1209 AM MST Tue Sep 1 2026 /1209 AM PDT Tue Sep 1 2026/ .TODAY... * Sky/weather.....................Sunny. * Max Temperature.................100-105. * 24 hr trend..................Little change. * Min Humidity....................16-24 pct. * 24 hr trend..................4 pct drier. * Winds - 20 foot...Slope/Valley..South 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...............2 percent. * Mixing Height for Yuma..........11000 ft AGL. * Transport Wind for Yuma.........Southwest 8 knots. * Dispersion for Yuma.............Very good. .TONIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................76-81. * 24 hr trend..................Little change. * Max Humidity....................30-48 pct. * 24 hr trend..................15 pct drier. * Winds - 20 foot...Slope/Valley..Southwest 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...............2 percent. .WEDNESDAY... * Sky/weather.....................Sunny. * Max Temperature.................99-104. * 24 hr trend..................Little change. * Min Humidity....................14-23 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. * Mixing Height for Yuma..........9800 ft AGL. * Transport Wind for Yuma.........Southwest 7 knots. * Dispersion for Yuma.............Very good. .EXTENDED... .THURSDAY...Mostly clear. Lows 74-81. Highs 98-103. South winds 10 to 20 mph. .FRIDAY...Mostly clear. Lows 75-81. Highs 98-103. South winds 10 to 20 mph. .SATURDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows 75-81. Highs 94-99. South winds 5 to 15 mph. .SUNDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 75-82. Highs 96-101. .MONDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 77-83. Highs 98-103. $$ AZZ133-011915- Southern Gila County/Tonto National Forest Foothills- Southern Tonto NF/West San Carlos BIA/South Portion Ft Apache BIA/ CAZ- 1209 AM MST Tue Sep 1 2026 .TODAY... * Sky/weather.....................Sunny. * Max Temperature.................83-97. * 24 hr trend..................11 degrees warmer. * Min Humidity....................28-40 pct. * 24 hr trend..................20 pct drier. * Winds - 20 foot...Slope/Valley..West 5 to 15 mph. * Winds...10000 FT MSL............West 5 to 15 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............1 percent. .TONIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................61-76. * 24 hr trend..................Little change. * Max Humidity....................57-76 pct. * 24 hr trend..................7 pct drier. * Winds - 20 foot...Slope/Valley..West 5 to 10 mph in the evening becoming mostly downslope/downvalley 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...............2 percent. .WEDNESDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................83-97. * 24 hr trend..................Little change. * Min Humidity....................26-38 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..Southwest 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...............4 percent. .EXTENDED... .THURSDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 61-76. Highs 82-96. South winds 5 to 15 mph. .FRIDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows 61-76. Highs 80-94. South winds 5 to 15 mph. .SATURDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 61-77. Highs 82-96. Southwest winds 5 to 15 mph. .SUNDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 63-78. Highs 84-99. .MONDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 63-79. Highs 86-100. $$ CAZ232-011915- Imperial County And Eastern Riverside County- 1209 AM PDT Tue Sep 1 2026 .TODAY... * Sky/weather.....................Sunny. * Max Temperature.................95-105. * 24 hr trend..................Little change. * Min Humidity....................12-19 pct. * 24 hr trend..................3 pct drier. * Winds - 20 foot...Slope/Valley..South 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...............1 percent. .TONIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................74-81. * 24 hr trend..................Little change. * Max Humidity....................23-35 pct. * 24 hr trend..................8 pct drier. * 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...............1 percent. .WEDNESDAY... * Sky/weather.....................Sunny. * Max Temperature.................93-104. * 24 hr trend..................Little change. * Min Humidity....................9-18 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...............0 percent. .EXTENDED... .THURSDAY...Clear. Lows 70-78. Highs 93-103. Southwest winds 10 to 20 mph. Minimum relative humidity may be lower than 15 percent. .FRIDAY...Mostly clear. Lows 71-79. Highs 93-102. Southwest winds 10 to 20 mph. .SATURDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows 73-80. Highs 88-96. Southwest winds 5 to 15 mph. .SUNDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows 74-82. Highs 90-98. .MONDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 76-83. Highs 93-102. $$ CAZ230-011915- Joshua Tree National Park- 1209 AM PDT Tue Sep 1 2026 .TODAY... * Sky/weather.....................Sunny. * Max Temperature.................83-99. * 24 hr trend..................Little change. * Min Humidity....................12-17 pct. * 24 hr trend..................5 pct drier. * Winds - 20 foot...Slope/Valley..Southwest 5 to 15 mph. * Winds...10000 FT MSL............Southwest 30 to 40 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. .TONIGHT... * Sky/weather.....................Clear. * Min Temperature.................59-74. * 24 hr trend..................Little change. * Max Humidity....................23-30 pct. * 24 hr trend..................6 pct drier. * Winds - 20 foot...Slope/Valley..West 5 to 15 mph. * Winds...10000 FT MSL............Southwest 30 to 40 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. .WEDNESDAY... * Sky/weather.....................Sunny. * Max Temperature.................82-97. * 24 hr trend..................Little change. * Min Humidity....................8-13 pct. * 24 hr trend..................4 pct drier. * Winds - 20 foot...Slope/Valley..Southwest 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...............0 percent. .EXTENDED... .THURSDAY...Clear. Lows 57-73. Highs 82-97. Southwest winds 10 to 20 mph. Minimum relative humidity may be lower than 15 percent. .FRIDAY...Mostly clear. Lows 57-74. Highs 81-96. Southwest winds 10 to 20 mph. Minimum relative humidity may be lower than 15 percent. .SATURDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows 59-75. Highs 78-90. Southwest winds 5 to 15 mph. .SUNDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows 62-77. Highs 78-92. .MONDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 64-78. Highs 81-94. $$ .8 TO 10 DAY OUTLOOK...Tuesday September 8th through Thursday September 10th: Near normal temperatures and above median precipitation.