Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Phoenix, AZ
Issued by NWS Phoenix, AZ
730 FNUS55 KPSR 311039 FWFPSR Fire Weather Planning Forecast for Southwest and South-Central Arizona and Southeast California National Weather Service Phoenix AZ 339 AM MST Sun Aug 31 2025 .DISCUSSION... Mostly dry conditions will prevail over the next few days, with the best chances of wetting rains being confined to the high terrain of Gila County Monday. Moisture levels will be on the rise through the start of the upcoming week, with MinRHs values this afternoon ranging between 10-15%, increasing to 20-25% by Tuesday. Overnight recoveries will follow a similar trend, with poor to modest readings tonight in Monday before becoming more decent beyond that. Outside of any potential thunderstorm outflows, winds will favor light and diurnal trends, with the usual afternoon breeziness. ...Thunderstorms imply gusty winds... Note...Additional Fire Weather Forecast information can be found in the Area Forecast Discussion. See product PHXAFDPSR. AZZ132-312245- 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- 339 AM MST Sun Aug 31 2025 .TODAY... * Sky/weather.....................Sunny. * Max Temperature.................103-109. * 24 hr trend..................3 degrees warmer. * Min Humidity....................11-15 pct. * 24 hr trend..................3 pct drier. * Winds - 20 foot...Slope/Valley..Southeast 5 to 10 mph in the morning becoming west in the afternoon. * Winds...10000 FT MSL............Southeast 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.......8900 ft AGL. * Transport Wind for Phoenix......West 4 knots. * Dispersion for Phoenix..........Fair. .TONIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................80-90. * 24 hr trend..................Little change. * Max Humidity....................33-47 pct. * 24 hr trend..................6 pct wetter. * Winds - 20 foot...Slope/Valley..West 5 to 10 mph in the evening becoming southeast after midnight. * Winds...10000 FT MSL............Light and variable in the evening becoming southeast 5 to 15 mph after midnight. * 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 and thunderstorms in the afternoon. * Max Temperature.................102-108. * 24 hr trend..................Little change. * Min Humidity....................17-22 pct. * 24 hr trend..................7 pct wetter. * Winds - 20 foot...Slope/Valley..Southeast 5 to 15 mph. * Winds...10000 FT MSL............East 10 to 15 mph. * Chance of Precip................0 percent in the morning becoming 10 percent in the afternoon. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............10 percent. * Mixing Height for Phoenix.......9400 ft AGL. * Transport Wind for Phoenix......South 5 knots. * Dispersion for Phoenix..........Marginal. .EXTENDED... .TUESDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 79-89. Highs 100-105. Southeast winds 5 to 15 mph. .WEDNESDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 78-88. Highs 99-105. South winds 5 to 10 mph. .THURSDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 74-84. Highs 97-103. Southwest winds 5 to 10 mph. .FRIDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 74-84. Highs 94-100. .SATURDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 74-84. Highs 91-97. $$ AZZ131-CAZ231-312245- Yuma/Martinez Lake and Vicinity/Lower Colorado River Valley AZ- Lower Colorado River Valley CA- 339 AM MST Sun Aug 31 2025 /339 AM PDT Sun Aug 31 2025/ .TODAY... * Sky/weather.....................Sunny. * Max Temperature.................106-111. * 24 hr trend..................3 degrees warmer. * Min Humidity....................11-15 pct. * 24 hr trend..................4 pct drier. * Winds - 20 foot...Slope/Valley..Northwest 5 to 15 mph. * Winds...10000 FT MSL............Light and variable. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. * Mixing Height for Yuma..........11200 ft AGL. * Transport Wind for Yuma.........West 5 knots. * Dispersion for Yuma.............Good. .TONIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................78-84. * 24 hr trend..................Little change. * Max Humidity....................34-48 pct. * 24 hr trend..................3 pct wetter. * Winds - 20 foot...Slope/Valley..Southwest 5 to 10 mph in the evening becoming south after midnight. * Winds...10000 FT MSL............Light and variable in the evening becoming southeast 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.....................Mostly sunny. * Max Temperature.................105-110. * 24 hr trend..................Little change. * Min Humidity....................15-22 pct. * 24 hr trend..................5 pct wetter. * Winds - 20 foot...Slope/Valley..Southeast 5 to 10 mph in the morning becoming south in the afternoon. * Winds...10000 FT MSL............Southeast 10 to 15 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............6 percent. * Mixing Height for Yuma..........9100 ft AGL. * Transport Wind for Yuma.........South 5 knots. * Dispersion for Yuma.............Good. .EXTENDED... .TUESDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 80-86. Highs 100-105. South winds 5 to 15 mph. .WEDNESDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 78-85. Highs 101-106. South winds 5 to 15 mph. .THURSDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 77-85. Highs 98-103. South winds 5 to 15 mph. .FRIDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 77-82. Highs 95-100. .SATURDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 76-81. Highs 94-99. $$ AZZ133-312245- Southern Gila County/Tonto National Forest Foothills- Southern Tonto NF/West San Carlos BIA/South Portion Ft Apache BIA/ CAZ- 339 AM MST Sun Aug 31 2025 .TODAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................89-105. * 24 hr trend..................Little change. * Min Humidity....................13-21 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..East 5 to 10 mph in the morning becoming southwest in the afternoon. * Winds...10000 FT MSL............Light and variable. * Chance of Precip................10 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............12 percent. .TONIGHT... * Sky/weather.....................Partly cloudy. Slight chance of showers and thunderstorms in the evening. * Min Temperature.................64-82. * 24 hr trend..................Little change. * Max Humidity....................44-70 pct. * 24 hr trend..................17 pct wetter. * Winds - 20 foot...Slope/Valley..Southeast 5 to 15 mph. * Winds...10000 FT MSL............Northeast 5 to 15 mph. * Chance of Precip................10 percent in the evening becoming 0 percent after midnight. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............10 percent. .MONDAY... * Sky/weather.....................Partly sunny. Slight chance of showers and thunderstorms in the afternoon. * Max Temperature.................87-103. * 24 hr trend..................Little change. * Min Humidity....................19-30 pct. * 24 hr trend..................8 pct wetter. * Winds - 20 foot...Slope/Valley..Southeast 5 to 15 mph. * Winds...10000 FT MSL............Northeast 5 to 15 mph. * Chance of Precip................0 percent in the morning becoming 20 percent in the afternoon. * CWR (>= 0.10 IN)................10 percent. * Chance of Thunder...............22 percent. .EXTENDED... .TUESDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 62-82. Highs 85-101. East winds 5 to 15 mph. .WEDNESDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 62-80. Highs 86-102. Northeast winds 5 to 15 mph. .THURSDAY...Partly cloudy with chance of showers and thunderstorms. Lows 60-78. Highs 86-100. West winds 5 to 15 mph. .FRIDAY...Partly cloudy with chance of showers and thunderstorms. Lows 60-76. Highs 83-96. .SATURDAY...Partly cloudy with chance of showers and thunderstorms. Lows 59-76. Highs 80-94. $$ CAZ232-312245- Imperial County And Eastern Riverside County- 339 AM PDT Sun Aug 31 2025 .TODAY... * Sky/weather.....................Sunny. * Max Temperature.................102-111. * 24 hr trend..................3 degrees warmer. * Min Humidity....................10-15 pct. * 24 hr trend..................4 pct drier. * Winds - 20 foot...Slope/Valley..Northwest 5 to 15 mph. * Winds...10000 FT MSL............Northeast 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. .TONIGHT... * Sky/weather.....................Clear. * Min Temperature.................81-86. * 24 hr trend..................Little change. * Max Humidity....................25-48 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..West 5 to 15 mph. * Winds...10000 FT MSL............North 5 to 15 mph in the evening becoming east after midnight. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. .MONDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................101-110. * 24 hr trend..................Little change. * Min Humidity....................12-19 pct. * 24 hr trend..................3 pct wetter. * Winds - 20 foot...Slope/Valley..Southeast 5 to 15 mph. * Winds...10000 FT MSL............Southeast 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...............5 percent. .EXTENDED... .TUESDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 80-87. Highs 95-103. South winds 5 to 10 mph. .WEDNESDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 79-86. Highs 97-105. South winds 5 to 10 mph. .THURSDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 77-84. Highs 94-103. South winds 5 to 15 mph. .FRIDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 76-83. Highs 92-100. .SATURDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 76-82. Highs 90-99. $$ CAZ230-312245- Joshua Tree National Park- 339 AM PDT Sun Aug 31 2025 .TODAY... * Sky/weather.....................Sunny. * Max Temperature.................92-105. * 24 hr trend..................3 degrees warmer. * Min Humidity....................12-16 pct. * 24 hr trend..................4 pct drier. * Winds - 20 foot...Slope/Valley..North 5 to 15 mph. * Winds...10000 FT MSL............Light and variable. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............1 percent. .TONIGHT... * Sky/weather.....................Clear. * Min Temperature.................72-82. * 24 hr trend..................Little change. * Max Humidity....................25-31 pct. * 24 hr trend..................3 pct drier. * Winds - 20 foot...Slope/Valley..Northwest 5 to 15 mph. * Winds...10000 FT MSL............Light and variable. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............1 percent. .MONDAY... * Sky/weather.....................Sunny. * Max Temperature.................92-105. * 24 hr trend..................Little change. * Min Humidity....................13-17 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..North 5 to 10 mph in the morning becoming southeast in the afternoon. * Winds...10000 FT MSL............Southeast 5 to 15 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............4 percent. .EXTENDED... .TUESDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows 70-83. Highs 85-98. Southwest winds 5 to 15 mph. .WEDNESDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 69-81. Highs 87-100. Southwest winds 5 to 10 mph. .THURSDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 67-80. Highs 85-98. Southwest winds 5 to 15 mph. .FRIDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 65-79. Highs 82-95. .SATURDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 65-77. Highs 80-92. $$ .8 TO 10 DAY OUTLOOK...Sunday September 7th through Tuesday September 9th: Near to above normal temperatures and above median precipitation.