Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Phoenix, AZ
Issued by NWS Phoenix, AZ
488 FNUS55 KPSR 242200 FWFPSR Fire Weather Planning Forecast for Southwest and South-Central Arizona and Southeast California National Weather Service Phoenix AZ 300 PM MST Sun Aug 24 2025 .DISCUSSION... Above normal temperatures today will quickly cool Monday into Tuesday as moisture and rain chances increase. Thunderstorm chances are likely to be focused more across southwest Arizona today before expanding into southeast California and south-central Arizona on Monday with strong gusty winds being a concern. Wetting rain chances will also increase to between 30-50% areawide for Monday and Tuesday with localized heavy rainfall possible. Afternoon MinRHs will continue to improve from around 20% today to 30% by Tuesday. ...Thunderstorms imply gusty winds... Note...Additional Fire Weather Forecast information can be found in the Area Forecast Discussion. See product PHXAFDPSR. AZZ132-251000- 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- 300 PM MST Sun Aug 24 2025 .TONIGHT... * Sky/weather.....................Partly cloudy. Patchy blowing dust in the evening. Slight chance of showers and thunderstorms . * Min Temperature.................81-91. * 24 hr trend..................Little change. * Max Humidity....................43-55 pct. * 24 hr trend..................5 pct wetter. * Winds - 20 foot...Slope/Valley..West 5 to 10 mph in the evening becoming southwest after midnight. * Winds...10000 FT MSL............Light and variable. * Chance of Precip................30 percent. * CWR (>= 0.10 IN)................10 percent. * Chance of Thunder...............24 percent. .MONDAY... * Sky/weather.....................Partly sunny. Slight chance of showers and thunderstorms in the morning becoming chance of showers and thunderstorms in the afternoon. * Max Temperature.................97-104. * 24 hr trend..................7 degrees cooler. * Min Humidity....................24-31 pct. * 24 hr trend..................6 pct wetter. * Winds - 20 foot...Slope/Valley..Southwest 5 to 15 mph. * Winds...10000 FT MSL............Southeast 5 to 15 mph. * Chance of Precip................40 percent. * CWR (>= 0.10 IN)................20 percent west portion...0 percent east portion. * Chance of Thunder...............23 percent. * Mixing Height for Phoenix.......7800 ft AGL. * Transport Wind for Phoenix......West 11 knots. * Dispersion for Phoenix..........Very good. .MONDAY NIGHT... * Sky/weather.....................Mostly cloudy. Patchy blowing dust in the evening. Showers likely and chance of thunderstorms in the evening becoming chance of showers and slight chance of thunderstorms after midnight. * Min Temperature.................78-88. * 24 hr trend..................Little change. * Max Humidity....................53-65 pct. * 24 hr trend..................10 pct wetter. * Winds - 20 foot...Slope/Valley..Southwest 5 to 10 mph in the evening becoming south after midnight. * Winds...10000 FT MSL............South 10 to 20 mph. * Chance of Precip................60 percent. * CWR (>= 0.10 IN)................30 percent. * Chance of Thunder...............39 percent. .TUESDAY... * Sky/weather.....................Mostly cloudy. Slight chance of thunderstorms in the morning. chance of showers . chance of thunderstorms in the afternoon. * Max Temperature.................93-101. * 24 hr trend..................3 degrees cooler. * Min Humidity....................30-37 pct. * 24 hr trend..................7 pct wetter. * Winds - 20 foot...Slope/Valley..Southeast 5 to 10 mph in the morning becoming southwest in the afternoon. * Winds...10000 FT MSL............South 10 to 15 mph. * Chance of Precip................50 percent. * CWR (>= 0.10 IN)................30 percent. * Chance of Thunder...............37 percent. * Mixing Height for Phoenix.......8600 ft AGL. * Transport Wind for Phoenix......West 5 knots. * Dispersion for Phoenix..........Good. .EXTENDED... .WEDNESDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows 77-87. Highs 94-101. South winds 5 to 10 mph. .THURSDAY...Partly cloudy. Lows 77-87. Highs 96-103. Southwest winds 5 to 15 mph. .FRIDAY...Mostly clear. Lows 77-87. Highs 97-104. Southwest winds 5 to 10 mph. .SATURDAY...Mostly clear. Lows 77-87. Highs 100-105. .SUNDAY...Clear. Lows 78-88. Highs 101-108. $$ AZZ131-CAZ231-251000- Yuma/Martinez Lake and Vicinity/Lower Colorado River Valley AZ- Lower Colorado River Valley CA- 300 PM MST Sun Aug 24 2025 /300 PM PDT Sun Aug 24 2025/ .TONIGHT... * Sky/weather.....................Partly cloudy. Slight chance of thunderstorms in the evening. slight chance of showers . * Min Temperature.................81-86. * 24 hr trend..................Little change. * Max Humidity....................50-66 pct. * 24 hr trend..................4 pct wetter. * Winds - 20 foot...Slope/Valley..South 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................30 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............15 percent. .MONDAY... * Sky/weather.....................Partly sunny. Slight chance of thunderstorms in the morning. chance of showers . chance of thunderstorms in the afternoon. * Max Temperature.................98-103. * 24 hr trend..................8 degrees cooler. * Min Humidity....................27-35 pct. * 24 hr trend..................10 pct wetter. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............Southeast 5 to 15 mph. * Chance of Precip................40 percent. * CWR (>= 0.10 IN)................10 percent. * Chance of Thunder...............32 percent. * Mixing Height for Yuma..........9400 ft AGL. * Transport Wind for Yuma.........South 13 knots. * Dispersion for Yuma.............Excellent. .MONDAY NIGHT... * Sky/weather.....................Mostly cloudy in the evening becoming partly cloudy after midnight. Chance of thunderstorms in the evening. chance of showers . slight chance of thunderstorms after midnight. * Min Temperature.................79-84. * 24 hr trend..................Little change. * Max Humidity....................61-77 pct. * 24 hr trend..................11 pct wetter. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............South 10 to 20 mph. * Chance of Precip................50 percent. * CWR (>= 0.10 IN)................20 percent. * Chance of Thunder...............28 percent. .TUESDAY... * Sky/weather.....................Mostly cloudy. Chance of showers and slight chance of thunderstorms in the morning becoming showers likely and chance of thunderstorms in the afternoon. * Max Temperature.................97-102. * 24 hr trend..................Little change. * Min Humidity....................29-37 pct. * 24 hr trend..................3 pct wetter. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............South 5 to 15 mph in the morning becoming light and variable in the afternoon. * Chance of Precip................60 percent. * CWR (>= 0.10 IN)................30 percent. * Chance of Thunder...............30 percent. * Mixing Height for Yuma..........9900 ft AGL. * Transport Wind for Yuma.........Southwest 7 knots. * Dispersion for Yuma.............Good. .EXTENDED... .WEDNESDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 77-83. Highs 98-103. South winds 5 to 15 mph. .THURSDAY...Partly cloudy. Lows 77-83. Highs 100-105. Southwest winds 5 to 15 mph. .FRIDAY...Mostly clear. Lows 75-83. Highs 100-105. Southwest winds 5 to 10 mph. .SATURDAY...Clear. Lows 75-82. Highs 102-107. .SUNDAY...Clear. Lows 76-83. Highs 104-109. $$ AZZ133-251000- Southern Gila County/Tonto National Forest Foothills- Southern Tonto NF/West San Carlos BIA/South Portion Ft Apache BIA/ CAZ- 300 PM MST Sun Aug 24 2025 .TONIGHT... * Sky/weather.....................Partly cloudy. Slight chance of showers and thunderstorms . * Min Temperature.................68-82. * 24 hr trend..................Little change. * Max Humidity....................37-49 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..Northwest 5 to 10 mph in the evening becoming east after midnight. * Winds...10000 FT MSL............South 10 to 15 mph. * Chance of Precip................20 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............19 percent. .MONDAY... * Sky/weather.....................Partly sunny. Chance of showers and thunderstorms in the afternoon. * Max Temperature.................88-102. * 24 hr trend..................4 degrees cooler. * Min Humidity....................20-29 pct. * 24 hr trend..................7 pct wetter. * Winds - 20 foot...Slope/Valley..South 5 to 10 mph in the morning becoming west in the afternoon. * Winds...10000 FT MSL............South 5 to 15 mph in the morning becoming light and variable in the afternoon. * Chance of Precip................0 percent in the morning becoming 30 percent in the afternoon. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............31 percent. .MONDAY NIGHT... * Sky/weather.....................Mostly cloudy in the evening becoming partly cloudy after midnight. Showers likely and chance of thunderstorms in the evening becoming chance of showers and slight chance of thunderstorms after midnight. * Min Temperature.................63-79. * 24 hr trend..................4 degrees cooler. * Max Humidity....................56-75 pct. * 24 hr trend..................22 pct wetter. * Winds - 20 foot...Slope/Valley..West 5 to 10 mph in the evening becoming north after midnight. * Winds...10000 FT MSL............Southwest 5 to 15 mph in the evening becoming light and variable after midnight. * Chance of Precip................60 percent. * CWR (>= 0.10 IN)................30 percent. * Chance of Thunder...............45 percent. .TUESDAY... * Sky/weather.....................Partly sunny. Slight chance of thunderstorms in the morning. chance of showers . chance of thunderstorms in the afternoon. * Max Temperature.................83-96. * 24 hr trend..................5 degrees cooler. * Min Humidity....................28-39 pct. * 24 hr trend..................9 pct wetter. * Winds - 20 foot...Slope/Valley..Southwest 5 to 15 mph. * Winds...10000 FT MSL............Light and variable in the morning becoming south 5 to 15 mph in the afternoon. * Chance of Precip................50 percent. * CWR (>= 0.10 IN)................20 percent. * Chance of Thunder...............45 percent. .EXTENDED... .WEDNESDAY...Partly cloudy with chance of showers and thunderstorms. Lows 61-79. Highs 82-96. Southwest winds 5 to 15 mph. .THURSDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 61-79. Highs 84-98. Northwest winds 5 to 15 mph. .FRIDAY...Mostly clear. Lows 61-79. Highs 85-99. Northwest winds 5 to 15 mph. .SATURDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 61-78. Highs 87-101. .SUNDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 62-80. Highs 88-103. $$ CAZ232-251000- Imperial County And Eastern Riverside County- 300 PM PDT Sun Aug 24 2025 .TONIGHT... * Sky/weather.....................Mostly clear. Slight chance of showers and thunderstorms in the evening. * Min Temperature.................81-87. * 24 hr trend..................Little change. * Max Humidity....................39-67 pct. * 24 hr trend..................3 pct wetter. * Winds - 20 foot...Slope/Valley..Southwest 5 to 15 mph. * Winds...10000 FT MSL............South 10 to 15 mph. * Chance of Precip................10 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............10 percent. .MONDAY... * Sky/weather.....................Partly sunny. Slight chance of showers in the morning. slight chance of thunderstorms . chance of showers in the afternoon. Patchy blowing dust in the afternoon. * Max Temperature.................94-103. * 24 hr trend..................8 degrees cooler. * Min Humidity....................23-33 pct. * 24 hr trend..................8 pct wetter. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............Southeast 10 to 15 mph. * Chance of Precip................50 percent. * CWR (>= 0.10 IN)................20 percent. * Chance of Thunder...............28 percent. .MONDAY NIGHT... * Sky/weather.....................Partly cloudy. Patchy blowing dust in the evening. Chance of showers and slight chance of thunderstorms . * Min Temperature.................79-85. * 24 hr trend..................Little change. * Max Humidity....................51-80 pct. * 24 hr trend..................12 pct wetter. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............Southwest 10 to 20 mph. * Chance of Precip................40 percent. * CWR (>= 0.10 IN)................20 percent. * Chance of Thunder...............22 percent. .TUESDAY... * Sky/weather.....................Mostly cloudy. Chance of showers . slight chance of thunderstorms in the afternoon. * Max Temperature.................93-103. * 24 hr trend..................Little change. * Min Humidity....................24-34 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..Southeast 5 to 15 mph. * Winds...10000 FT MSL............Southwest 5 to 15 mph. * Chance of Precip................50 percent. * CWR (>= 0.10 IN)................20 percent. * Chance of Thunder...............21 percent. .EXTENDED... .WEDNESDAY...Partly cloudy with slight chance of showers. Lows 77-85. Highs 95-103. Southwest winds 5 to 15 mph. .THURSDAY...Partly cloudy. Lows 77-84. Highs 95-104. West winds 5 to 15 mph. .FRIDAY...Mostly clear. Lows 78-84. Highs 95-104. West winds 5 to 15 mph. .SATURDAY...Mostly clear. Lows 78-84. Highs 97-106. .SUNDAY...Clear. Lows 78-85. Highs 99-108. $$ CAZ230-251000- Joshua Tree National Park- 300 PM PDT Sun Aug 24 2025 .TONIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................72-83. * 24 hr trend..................Little change. * Max Humidity....................34-43 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..West 5 to 15 mph. * Winds...10000 FT MSL............South 10 to 15 mph. * Chance of Precip................10 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............9 percent. .MONDAY... * Sky/weather.....................Mostly sunny in the morning becoming mostly cloudy in the afternoon. Slight chance of showers in the morning becoming chance of showers and slight chance of thunderstorms in the afternoon. * Max Temperature.................86-98. * 24 hr trend..................6 degrees cooler. * Min Humidity....................23-31 pct. * 24 hr trend..................7 pct wetter. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............South 10 to 15 mph. * Chance of Precip................60 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............25 percent. .MONDAY NIGHT... * Sky/weather.....................Partly cloudy. Chance of showers and slight chance of thunderstorms. * Min Temperature.................69-80. * 24 hr trend..................3 degrees cooler. * Max Humidity....................45-58 pct. * 24 hr trend..................13 pct wetter. * Winds - 20 foot...Slope/Valley..Southwest 5 to 15 mph. * Winds...10000 FT MSL............West 10 to 20 mph. * Chance of Precip................40 percent. * CWR (>= 0.10 IN)................10 percent. * Chance of Thunder...............19 percent. .TUESDAY... * Sky/weather.....................Mostly cloudy. Chance of showers in the morning becoming showers likely and slight chance of thunderstorms in the afternoon. * Max Temperature.................83-96. * 24 hr trend..................Little change. * Min Humidity....................25-34 pct. * 24 hr trend..................3 pct wetter. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............Light and variable in the morning becoming southwest 5 to 15 mph in the afternoon. * Chance of Precip................60 percent. * CWR (>= 0.10 IN)................20 percent. * Chance of Thunder...............19 percent. .EXTENDED... .WEDNESDAY...Mostly clear with slight chance of showers. Lows 67-80. Highs 85-97. Southwest winds 5 to 15 mph. .THURSDAY...Partly cloudy. Lows 67-79. Highs 84-97. West winds 5 to 15 mph. .FRIDAY...Mostly clear. Lows 67-79. Highs 85-98. West winds 5 to 10 mph. .SATURDAY...Clear. Lows 67-79. Highs 87-100. .SUNDAY...Clear. Lows 68-79. Highs 88-102. $$ .8 TO 10 DAY OUTLOOK...Monday September 1st through Wednesday September 3rd: Near normal temperatures and near to above median precipitation.