Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Phoenix, AZ
Issued by NWS Phoenix, AZ
661 FNUS55 KPSR 240816 FWFPSR Fire Weather Planning Forecast for Southwest and South-Central Arizona and Southeast California National Weather Service Phoenix AZ 116 AM 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. AZZ132-242030- 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- 116 AM MST Sun Aug 24 2025 .TODAY... * Sky/weather.....................Mostly sunny. Slight chance of showers and thunderstorms in the afternoon. * Max Temperature.................104-111. * 24 hr trend..................Little change. * Min Humidity....................18-23 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..Southeast 5 to 10 mph in the morning becoming southwest in the afternoon. * Winds...10000 FT MSL............Southeast 5 to 15 mph. * Chance of Precip................0 percent in the morning becoming 30 percent in the afternoon. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............25 percent. * Mixing Height for Phoenix.......12400 ft AGL. * Transport Wind for Phoenix......South 5 knots. * Dispersion for Phoenix..........Good. .TONIGHT... * Sky/weather.....................Partly cloudy. Patchy blowing dust in the evening. Chance of showers in the evening. slight chance of thunderstorms . slight chance of showers after midnight. * Min Temperature.................81-91. * 24 hr trend..................Little change. * Max Humidity....................43-55 pct. * 24 hr trend..................4 pct wetter. * Winds - 20 foot...Slope/Valley..West 5 to 10 mph in the evening becoming south after midnight. * Winds...10000 FT MSL............South 5 to 15 mph in the evening becoming light and variable after midnight. * Chance of Precip................30 percent. * CWR (>= 0.10 IN)................20 percent. * Chance of Thunder...............26 percent. .MONDAY... * Sky/weather.....................Partly sunny. Chance of showers in the morning. slight chance of thunderstorms . showers likely in the afternoon. * Max Temperature.................100-106. * 24 hr trend..................5 degrees cooler. * Min Humidity....................22-31 pct. * 24 hr trend..................6 pct wetter. * Winds - 20 foot...Slope/Valley..Southwest 5 to 15 mph. * Winds...10000 FT MSL............Light and variable in the morning becoming southeast 5 to 15 mph in the afternoon. * Chance of Precip................50 percent. * CWR (>= 0.10 IN)................30 percent west portion...10 percent east portion. * Chance of Thunder...............28 percent. * Mixing Height for Phoenix.......8900 ft AGL. * Transport Wind for Phoenix......West 10 knots. * Dispersion for Phoenix..........Very good. .EXTENDED... .TUESDAY...Showers likely and chance of thunderstorms. Lows 75-85. Highs 94-101. South winds 5 to 10 mph. .WEDNESDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows 75-85. Highs 92-100. South winds 5 to 10 mph. .THURSDAY...Mostly clear. Lows 76-86. Highs 95-103. Southwest winds 5 to 15 mph. .FRIDAY...Mostly clear. Lows 75-85. Highs 97-104. .SATURDAY...Mostly clear. Lows 75-85. Highs 98-104. $$ AZZ131-CAZ231-242030- Yuma/Martinez Lake and Vicinity/Lower Colorado River Valley AZ- Lower Colorado River Valley CA- 116 AM MST Sun Aug 24 2025 /116 AM PDT Sun Aug 24 2025/ .TODAY... * Sky/weather.....................Mostly sunny. Slight chance of showers and thunderstorms in the afternoon. * Max Temperature.................106-111. * 24 hr trend..................Little change. * Min Humidity....................18-23 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............South 10 to 15 mph. * Chance of Precip................0 percent in the morning becoming 20 percent in the afternoon. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............17 percent. * Mixing Height for Yuma..........10100 ft AGL. * Transport Wind for Yuma.........South 9 knots. * Dispersion for Yuma.............Very good. .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....................48-65 pct. * 24 hr trend..................4 pct wetter. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............South 5 to 15 mph. * Chance of Precip................20 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............17 percent. .MONDAY... * Sky/weather.....................Partly sunny. Chance of showers in the morning becoming showers likely and slight chance of thunderstorms in the afternoon. * Max Temperature.................101-106. * 24 hr trend..................6 degrees cooler. * Min Humidity....................25-34 pct. * 24 hr trend..................9 pct wetter. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............Light and variable in the morning becoming southeast 5 to 15 mph in the afternoon. * Chance of Precip................60 percent. * CWR (>= 0.10 IN)................30 percent. * Chance of Thunder...............23 percent. * Mixing Height for Yuma..........2600 ft AGL. * Transport Wind for Yuma.........Southeast 10 knots. * Dispersion for Yuma.............Fair. .EXTENDED... .TUESDAY...Showers likely and chance of thunderstorms. Lows 77-85. Highs 98-103. South winds 5 to 15 mph. .WEDNESDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 77-83. Highs 98-103. South winds 5 to 10 mph. .THURSDAY...Mostly clear. Lows 74-82. Highs 100-105. Southwest winds 5 to 15 mph. .FRIDAY...Mostly clear. Lows 74-81. Highs 100-105. .SATURDAY...Mostly clear. Lows 74-80. Highs 100-105. $$ AZZ133-242030- Southern Gila County/Tonto National Forest Foothills- Southern Tonto NF/West San Carlos BIA/South Portion Ft Apache BIA/ CAZ- 116 AM MST Sun Aug 24 2025 .TODAY... * Sky/weather.....................Mostly sunny. Slight chance of showers and thunderstorms in the afternoon. * Max Temperature.................90-106. * 24 hr trend..................Little change. * Min Humidity....................14-21 pct. * 24 hr trend..................3 pct drier. * Winds - 20 foot...Slope/Valley..Southeast 5 to 10 mph in the morning becoming south 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 20 percent in the afternoon. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............16 percent. .TONIGHT... * Sky/weather.....................Partly cloudy. Slight chance of showers and thunderstorms . * Min Temperature.................67-82. * 24 hr trend..................Little change. * Max Humidity....................36-48 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..North 5 to 10 mph in the evening becoming northeast 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...............17 percent. .MONDAY... * Sky/weather.....................Partly sunny. Chance of showers and thunderstorms in the afternoon. * Max Temperature.................89-103. * 24 hr trend..................3 degrees cooler. * Min Humidity....................19-29 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 5 to 15 mph. * Chance of Precip................0 percent in the morning becoming 30 percent in the afternoon. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............27 percent. .EXTENDED... .TUESDAY...Showers likely and chance of thunderstorms. Lows 62-79. Highs 83-96. Southwest winds 5 to 15 mph. .WEDNESDAY...Partly cloudy with chance of showers and thunderstorms. Lows 61-78. Highs 81-95. South winds 5 to 15 mph. .THURSDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 59-78. Highs 82-97. West winds 5 to 15 mph. .FRIDAY...Mostly clear. Lows 59-77. Highs 84-99. .SATURDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 60-78. Highs 85-100. $$ CAZ232-242030- Imperial County And Eastern Riverside County- 116 AM PDT Sun Aug 24 2025 .TODAY... * Sky/weather.....................Mostly sunny. Slight chance of showers and thunderstorms in the afternoon. * Max Temperature.................101-111. * 24 hr trend..................Little change. * Min Humidity....................15-25 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............South 10 to 15 mph. * Chance of Precip................0 percent in the morning becoming 20 percent in the afternoon. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............16 percent. .TONIGHT... * Sky/weather.....................Mostly clear. Slight chance of showers and thunderstorms in the evening. * Min Temperature.................82-87. * 24 hr trend..................Little change. * Max Humidity....................38-67 pct. * 24 hr trend..................Little RH change. * 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...............13 percent. .MONDAY... * Sky/weather.....................Partly sunny. Slight chance of showers in the morning becoming showers likely and slight chance of thunderstorms in the afternoon. * Max Temperature.................98-107. * 24 hr trend..................4 degrees cooler. * Min Humidity....................21-32 pct. * 24 hr trend..................6 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)................30 percent. * Chance of Thunder...............19 percent. .EXTENDED... .TUESDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows 78-86. Highs 95-103. South winds 5 to 15 mph. .WEDNESDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 78-83. Highs 94-103. South winds 5 to 10 mph. .THURSDAY...Mostly clear. Lows 76-83. Highs 95-104. West winds 5 to 15 mph. .FRIDAY...Mostly clear. Lows 75-81. Highs 95-104. .SATURDAY...Mostly clear. Lows 75-82. Highs 95-105. $$ CAZ230-242030- Joshua Tree National Park- 116 AM PDT Sun Aug 24 2025 .TODAY... * Sky/weather.....................Mostly sunny. Slight chance of showers and thunderstorms in the afternoon. * Max Temperature.................91-106. * 24 hr trend..................Little change. * Min Humidity....................15-24 pct. * 24 hr trend..................3 pct drier. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............South 10 to 15 mph. * Chance of Precip................0 percent in the morning becoming 20 percent in the afternoon. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............18 percent. .TONIGHT... * Sky/weather.....................Mostly clear. Slight chance of thunderstorms in the evening. slight chance of showers . * Min Temperature.................72-84. * 24 hr trend..................Little change. * Max Humidity....................33-42 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..West 5 to 15 mph. * Winds...10000 FT MSL............South 10 to 20 mph. * Chance of Precip................10 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............10 percent. .MONDAY... * Sky/weather.....................Mostly sunny in the morning becoming mostly cloudy in the afternoon. Slight chance of showers in the morning becoming showers likely and slight chance of thunderstorms in the afternoon. * Max Temperature.................88-102. * 24 hr trend..................3 degrees cooler. * Min Humidity....................21-29 pct. * 24 hr trend..................5 pct wetter. * Winds - 20 foot...Slope/Valley..Southwest 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...............15 percent. .EXTENDED... .TUESDAY...Showers likely and slight chance of thunderstorms. Lows 67-82. Highs 84-97. Southwest winds 5 to 15 mph. .WEDNESDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 67-78. Highs 84-96. Southwest winds 5 to 15 mph. .THURSDAY...Mostly clear. Lows 66-78. Highs 85-98. West winds 5 to 15 mph. .FRIDAY...Mostly clear. Lows 66-76. Highs 85-98. .SATURDAY...Mostly clear. Lows 66-76. Highs 86-99. $$ .8 TO 10 DAY OUTLOOK...Sunday August 31st through Tuesday September 2nd: Near normal temperatures and near median precipitation.