Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Phoenix, AZ
Issued by NWS Phoenix, AZ
531 FNUS55 KPSR 012058 FWFPSR Fire Weather Planning Forecast for Southwest and South-Central Arizona and Southeast California National Weather Service Phoenix AZ 158 PM MST Mon Sep 1 2025 .DISCUSSION... With temperatures falling closer to the seasonal normal, increasing moisture will result in better wetting rainfall chances and reduced wildfire threat across the entire region. While storms will be most prevalent over mountain areas, lower elevations of western districts have better than a 50% chance of rain through Wednesday. The moisture increase will result in MinRHs generally falling into a 15-30% range following fair to good overnight recovery of 40-70%. East winds will prevail through Wednesday with occasional gustiness. Thunderstorms will create strong and long traveling outflows during the late afternoon/evening with widespread strong, gusty winds. ...Thunderstorms imply gusty winds... Note...Additional Fire Weather Forecast information can be found in the Area Forecast Discussion. See product PHXAFDPSR. AZZ132-020900- 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- 158 PM MST Mon Sep 1 2025 .TONIGHT... * Sky/weather.....................Partly cloudy. Slight chance of showers and thunderstorms. * Min Temperature.................81-91. * 24 hr trend..................Little change. * Max Humidity....................42-52 pct. * 24 hr trend..................6 pct wetter. * Winds - 20 foot...Slope/Valley..East 5 to 15 mph. * Winds...10000 FT MSL............East 10 to 20 mph. * Chance of Precip................10 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............10 percent. .TUESDAY... * Sky/weather.....................Partly sunny. Slight chance of showers and thunderstorms in the afternoon. * Max Temperature.................100-107. * 24 hr trend..................Little change. * Min Humidity....................18-27 pct. * 24 hr trend..................4 pct wetter. * Winds - 20 foot...Slope/Valley..Southeast 5 to 15 mph. * Winds...10000 FT MSL............East 15 to 25 mph. * Chance of Precip................20 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............19 percent. * Mixing Height for Phoenix.......13600 ft AGL. * Transport Wind for Phoenix......Southeast 14 knots. * Dispersion for Phoenix..........Excellent. .TUESDAY NIGHT... * Sky/weather.....................Partly cloudy. Patchy blowing dust in the evening. Chance of showers in the evening. slight chance of thunderstorms. * Min Temperature.................79-89. * 24 hr trend..................3 degrees cooler. * Max Humidity....................47-60 pct. * 24 hr trend..................7 pct wetter. * Winds - 20 foot...Slope/Valley..Southeast 5 to 15 mph. * Winds...10000 FT MSL............Southeast 15 to 25 mph. * Chance of Precip................40 percent. * CWR (>= 0.10 IN)................30 percent west portion...10 percent east portion. * Chance of Thunder...............25 percent. .WEDNESDAY... * Sky/weather.....................Partly sunny. Slight chance of showers and thunderstorms. * Max Temperature.................97-104. * 24 hr trend..................3 degrees cooler. * Min Humidity....................22-31 pct. * 24 hr trend..................4 pct wetter. * Winds - 20 foot...Slope/Valley..Southeast 5 to 10 mph in the morning becoming southwest in the afternoon. * Winds...10000 FT MSL............Southeast 10 to 20 mph. * Chance of Precip................20 percent. * CWR (>= 0.10 IN)................10 percent. * Chance of Thunder...............18 percent. * Mixing Height for Phoenix.......10700 ft AGL. * Transport Wind for Phoenix......South 7 knots. * Dispersion for Phoenix..........Very good. .EXTENDED... .THURSDAY...Partly cloudy with chance of showers and thunderstorms. Lows 73-83. Highs 95-100. Southwest winds 5 to 15 mph. .FRIDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 73-83. Highs 90-96. South winds 5 to 15 mph. .SATURDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 74-84. Highs 90-97. South winds 5 to 10 mph. .SUNDAY...Mostly clear with slight chance of showers. Lows 74-84. Highs 93-100. .MONDAY...Clear. Lows 74-84. Highs 95-103. $$ AZZ131-CAZ231-020900- Yuma/Martinez Lake and Vicinity/Lower Colorado River Valley AZ- Lower Colorado River Valley CA- 158 PM MST Mon Sep 1 2025 /158 PM PDT Mon Sep 1 2025/ .TONIGHT... * Sky/weather.....................Partly cloudy. Chance of showers and thunderstorms after midnight. * Min Temperature.................82-87. * 24 hr trend..................Little change. * Max Humidity....................46-61 pct. * 24 hr trend..................9 pct wetter. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............East 10 to 20 mph. * Chance of Precip................0 percent in the evening becoming 40 percent after midnight. * CWR (>= 0.10 IN)................10 percent. * Chance of Thunder...............20 percent. .TUESDAY... * Sky/weather.....................Partly sunny. Chance of showers and slight chance of thunderstorms . * Max Temperature.................101-106. * 24 hr trend..................4 degrees cooler. * Min Humidity....................24-31 pct. * 24 hr trend..................7 pct wetter. * Winds - 20 foot...Slope/Valley..Southeast 5 to 15 mph. * Winds...10000 FT MSL............East 15 to 25 mph. * Chance of Precip................40 percent. * CWR (>= 0.10 IN)................20 percent. * Chance of Thunder...............30 percent. * Mixing Height for Yuma..........7700 ft AGL. * Transport Wind for Yuma.........South 8 knots. * Dispersion for Yuma.............Good. .TUESDAY NIGHT... * Sky/weather.....................Partly cloudy. Patchy blowing dust in the evening. Chance of showers in the evening. slight chance of thunderstorms. * Min Temperature.................79-84. * 24 hr trend..................3 degrees cooler. * Max Humidity....................55-67 pct. * 24 hr trend..................8 pct wetter. * Winds - 20 foot...Slope/Valley..Southwest 5 to 15 mph in the evening becoming southeast 5 to 10 mph after midnight. * Winds...10000 FT MSL............Southeast 20 to 30 mph. * Chance of Precip................40 percent. * CWR (>= 0.10 IN)................30 percent. * Chance of Thunder...............30 percent. .WEDNESDAY... * Sky/weather.....................Partly sunny. Slight chance of showers and thunderstorms. * Max Temperature.................99-104. * 24 hr trend..................Little change. * Min Humidity....................26-33 pct. * 24 hr trend..................3 pct wetter. * Winds - 20 foot...Slope/Valley..Northeast 5 to 10 mph in the morning becoming southwest in the afternoon. * Winds...10000 FT MSL............South 10 to 20 mph. * Chance of Precip................20 percent. * CWR (>= 0.10 IN)................10 percent. * Chance of Thunder...............20 percent. * Mixing Height for Yuma..........8100 ft AGL. * Transport Wind for Yuma.........Southwest 6 knots. * Dispersion for Yuma.............Good. .EXTENDED... .THURSDAY...Partly cloudy with chance of showers and thunderstorms. Lows 76-84. Highs 98-103. South winds 5 to 15 mph. .FRIDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 76-81. Highs 93-98. South winds 10 to 20 mph. .SATURDAY...Mostly clear. Lows 76-81. Highs 94-99. South winds 5 to 15 mph. .SUNDAY...Mostly clear. Lows 75-81. Highs 96-101. .MONDAY...Clear. Lows 75-81. Highs 98-103. $$ AZZ133-020900- Southern Gila County/Tonto National Forest Foothills- Southern Tonto NF/West San Carlos BIA/South Portion Ft Apache BIA/ CAZ- 158 PM MST Mon Sep 1 2025 .TONIGHT... * Sky/weather.....................Mostly cloudy. Slight chance of showers and thunderstorms in the evening. * Min Temperature.................64-81. * 24 hr trend..................Little change. * Max Humidity....................47-67 pct. * 24 hr trend..................3 pct wetter. * Winds - 20 foot...Slope/Valley..East 5 to 15 mph. * Winds...10000 FT MSL............East 5 to 15 mph in the evening becoming southeast 15 to 25 mph after midnight. * Chance of Precip................10 percent. * CWR (>= 0.10 IN)................5 percent. * Chance of Thunder...............10 percent. .TUESDAY... * Sky/weather.....................Partly sunny. Slight chance of showers and thunderstorms in the afternoon. * Max Temperature.................86-103. * 24 hr trend..................Little change. * Min Humidity....................16-24 pct. * 24 hr trend..................4 pct drier. * Winds - 20 foot...Slope/Valley..Southeast 5 to 15 mph. * Winds...10000 FT MSL............Southeast 15 to 25 mph. * Chance of Precip................0 percent in the morning becoming 20 percent in the afternoon. * CWR (>= 0.10 IN)................10 percent. * Chance of Thunder...............20 percent. .TUESDAY NIGHT... * Sky/weather.....................Partly cloudy. Slight chance of showers and thunderstorms in the evening. * Min Temperature.................63-79. * 24 hr trend..................Little change. * Max Humidity....................39-56 pct. * 24 hr trend..................8 pct drier. * Winds - 20 foot...Slope/Valley..East 5 to 15 mph. * Winds...10000 FT MSL............Southeast 15 to 25 mph. * Chance of Precip................20 percent in the evening becoming 0 percent after midnight. * CWR (>= 0.10 IN)................10 percent. * Chance of Thunder...............17 percent. .WEDNESDAY... * Sky/weather.....................Partly sunny. Slight chance of showers and thunderstorms in the afternoon. * Max Temperature.................86-101. * 24 hr trend..................Little change. * Min Humidity....................17-25 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..East 5 to 10 mph in the morning becoming south in the afternoon. * Winds...10000 FT MSL............Southeast 15 to 25 mph in the morning becoming 5 to 15 mph in the afternoon. * Chance of Precip................0 percent in the morning becoming 20 percent in the afternoon. * CWR (>= 0.10 IN)................5 percent. * Chance of Thunder...............17 percent. .EXTENDED... .THURSDAY...Partly cloudy with chance of showers and thunderstorms. Lows 59-79. Highs 85-98. Southwest winds 5 to 15 mph. .FRIDAY...Partly cloudy with chance of showers and thunderstorms. Lows 58-74. Highs 78-92. South winds 5 to 15 mph. .SATURDAY...Partly cloudy with chance of thunderstorms and slight chance of showers. Lows 58-76. Highs 79-93. South winds 5 to 15 mph. .SUNDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 59-76. Highs 81-95. .MONDAY...Mostly clear. Lows 60-76. Highs 83-98. $$ CAZ232-020900- Imperial County And Eastern Riverside County- 158 PM PDT Mon Sep 1 2025 .TONIGHT... * Sky/weather.....................Partly cloudy. Chance of showers and thunderstorms after midnight. * Min Temperature.................82-88. * 24 hr trend..................Little change. * Max Humidity....................38-63 pct. * 24 hr trend..................11 pct wetter. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............East 10 to 20 mph. * Chance of Precip................0 percent in the evening becoming 40 percent after midnight. * CWR (>= 0.10 IN)................10 percent. * Chance of Thunder...............16 percent. .TUESDAY... * Sky/weather.....................Partly sunny. Chance of showers and slight chance of thunderstorms. * Max Temperature.................96-104. * 24 hr trend..................6 degrees cooler. * Min Humidity....................22-33 pct. * 24 hr trend..................8 pct wetter. * Winds - 20 foot...Slope/Valley..Southeast 5 to 15 mph. * Winds...10000 FT MSL............East 15 to 25 mph. * Chance of Precip................50 percent. * CWR (>= 0.10 IN)................30 percent. * Chance of Thunder...............30 percent. .TUESDAY NIGHT... * Sky/weather.....................Partly cloudy. Patchy blowing dust in the evening. Chance of showers in the evening. slight chance of thunderstorms . * Min Temperature.................79-85. * 24 hr trend..................3 degrees cooler. * Max Humidity....................48-72 pct. * 24 hr trend..................10 pct wetter. * Winds - 20 foot...Slope/Valley..Northwest 5 to 15 mph. * Winds...10000 FT MSL............Southeast 15 to 25 mph. * Chance of Precip................30 percent. * CWR (>= 0.10 IN)................30 percent. * Chance of Thunder...............25 percent. .WEDNESDAY... * Sky/weather.....................Partly sunny. Slight chance of showers in the morning. slight chance of thunderstorms . chance of showers in the afternoon. * Max Temperature.................94-103. * 24 hr trend..................Little change. * Min Humidity....................24-36 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..North 5 to 10 mph in the morning becoming southwest in the afternoon. * Winds...10000 FT MSL............South 10 to 20 mph. * Chance of Precip................30 percent. * CWR (>= 0.10 IN)................20 percent. * Chance of Thunder...............21 percent. .EXTENDED... .THURSDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows 75-85. Highs 93-103. South winds 5 to 15 mph. .FRIDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 75-81. Highs 90-98. South winds 5 to 15 mph. .SATURDAY...Mostly clear. Lows 75-81. Highs 90-99. South winds 5 to 15 mph. .SUNDAY...Mostly clear. Lows 75-81. Highs 92-101. .MONDAY...Clear. Lows 75-80. Highs 93-102. $$ CAZ230-020900- Joshua Tree National Park- 158 PM PDT Mon Sep 1 2025 .TONIGHT... * Sky/weather.....................Partly cloudy. Chance of showers and thunderstorms after midnight. * Min Temperature.................71-84. * 24 hr trend..................Little change. * Max Humidity....................36-46 pct. * 24 hr trend..................14 pct wetter. * Winds - 20 foot...Slope/Valley..Southwest 5 to 15 mph. * Winds...10000 FT MSL............Southeast 10 to 20 mph. * Chance of Precip................40 percent. * CWR (>= 0.10 IN)................10 percent. * Chance of Thunder...............18 percent. .TUESDAY... * Sky/weather.....................Mostly cloudy. Slight chance of thunderstorms in the morning. chance of showers and thunderstorms in the afternoon. * Max Temperature.................85-98. * 24 hr trend..................7 degrees cooler. * Min Humidity....................25-32 pct. * 24 hr trend..................12 pct wetter. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............East 10 to 20 mph. * Chance of Precip................60 percent. * CWR (>= 0.10 IN)................40 percent. * Chance of Thunder...............40 percent. .TUESDAY NIGHT... * Sky/weather.....................Mostly cloudy in the evening becoming partly cloudy after midnight. Patchy blowing dust in the evening. Chance of showers and slight chance of thunderstorms . * Min Temperature.................67-79. * 24 hr trend..................4 degrees cooler. * Max Humidity....................52-61 pct. * 24 hr trend..................15 pct wetter. * Winds - 20 foot...Slope/Valley..Northwest 5 to 15 mph. * Winds...10000 FT MSL............Southeast 10 to 20 mph. * Chance of Precip................30 percent. * CWR (>= 0.10 IN)................30 percent. * Chance of Thunder...............25 percent. .WEDNESDAY... * Sky/weather.....................Partly sunny. Slight chance of showers in the morning. slight chance of thunderstorms . chance of showers in the afternoon. * Max Temperature.................83-96. * 24 hr trend..................Little change. * Min Humidity....................30-41 pct. * 24 hr trend..................6 pct wetter. * Winds - 20 foot...Slope/Valley..North 5 to 10 mph in the morning becoming east in the afternoon. * Winds...10000 FT MSL............Southeast 15 to 25 mph in the morning becoming 5 to 15 mph in the afternoon. * Chance of Precip................40 percent. * CWR (>= 0.10 IN)................30 percent. * Chance of Thunder...............24 percent. .EXTENDED... .THURSDAY...Mostly clear with chance of showers and slight chance of thunderstorms. Lows 65-80. Highs 85-97. Southwest winds 5 to 15 mph. .FRIDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows 64-76. Highs 81-93. South winds 5 to 15 mph. .SATURDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 63-76. Highs 81-94. Southwest winds 5 to 15 mph. .SUNDAY...Mostly clear. Lows 63-76. Highs 82-95. .MONDAY...Clear. Lows 63-75. Highs 83-97. $$ .8 TO 10 DAY OUTLOOK...Tuesday September 9th through Thursday September 11th: Near normal temperatures and near median precipitation.