Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Phoenix, AZ
Issued by NWS Phoenix, AZ
721 FNUS55 KPSR 152051 FWFPSR Fire Weather Planning Forecast for Southwest and South-Central Arizona and Southeast California National Weather Service Phoenix AZ 151 PM MST Fri Aug 15 2025 .DISCUSSION... Thunderstorm chances will resume over eastern districts this evening with distinct drying through the weekend. Storms this evening will be capable of producing gusty and erratic outflow winds. Temperatures will cool closer to the seasonal normal through this weekend. With better moisture profiles, afternoon humidity levels should be near a 20-30% range in eastern districts Saturday, but fall closer to 15-25% Sunday matching the persistence of western districts. Overnight recovery will vary widely across the area from 30% to 80%. ...Thunderstorms imply gusty winds... Note...Additional Fire Weather Forecast information can be found in the Area Forecast Discussion. See product PHXAFDPSR. AZZ132-160900- 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- 151 PM MST Fri Aug 15 2025 .TONIGHT... * Sky/weather.....................Partly cloudy. Chance of showers and thunderstorms. * Min Temperature.................76-86. * 24 hr trend..................Little change. * Max Humidity....................53-66 pct. * 24 hr trend..................8 pct wetter. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph in the evening becoming southeast 5 to 10 mph after midnight. * Winds...10000 FT MSL............South 10 to 20 mph. * Chance of Precip................30 percent. * CWR (>= 0.10 IN)................0 percent west portion...20 percent east portion. * Chance of Thunder...............25 percent. .SATURDAY... * Sky/weather.....................Sunny. * Max Temperature.................97-103. * 24 hr trend..................Little change. * Min Humidity....................18-26 pct. * 24 hr trend..................4 pct drier. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............South 10 to 20 mph. * Chance of Precip................5 percent. * CWR (>= 0.10 IN)................1 percent. * Chance of Thunder...............4 percent. * Mixing Height for Phoenix.......10700 ft AGL. * Transport Wind for Phoenix......Southwest 8 knots. * Dispersion for Phoenix..........Very good. .SATURDAY NIGHT... * Sky/weather.....................Mostly clear. Slight chance of showers and thunderstorms in the evening. * Min Temperature.................72-82. * 24 hr trend..................4 degrees cooler. * Max Humidity....................37-54 pct. * 24 hr trend..................15 pct drier. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............South 10 to 20 mph. * Chance of Precip................15 percent. * CWR (>= 0.10 IN)................5 percent. * Chance of Thunder...............10 percent. .SUNDAY... * Sky/weather.....................Sunny. * Max Temperature.................98-104. * 24 hr trend..................Little change. * Min Humidity....................11-17 pct. * 24 hr trend..................8 pct drier. * Winds - 20 foot...Slope/Valley..Southeast 5 to 10 mph in the morning becoming southwest in the afternoon. * Winds...10000 FT MSL............South 15 to 25 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............2 percent. * Mixing Height for Phoenix.......9100 ft AGL. * Transport Wind for Phoenix......Southwest 6 knots. * Dispersion for Phoenix..........Good. .EXTENDED... .MONDAY...Mostly clear. Lows 73-83. Highs 101-106. Southwest winds 5 to 10 mph. Minimum relative humidity may be lower than 15 percent. .TUESDAY...Mostly clear. Lows 77-87. Highs 103-109. Southwest winds 5 to 10 mph. Minimum relative humidity may be lower than 15 percent. .WEDNESDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 81-91. Highs 106-111. Southwest winds 5 to 10 mph. .THURSDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 83-93. Highs 107-113. .FRIDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 83-93. Highs 107-113. $$ AZZ131-CAZ231-160900- Yuma/Martinez Lake and Vicinity/Lower Colorado River Valley AZ- Lower Colorado River Valley CA- 151 PM MST Fri Aug 15 2025 /151 PM PDT Fri Aug 15 2025/ .TONIGHT... * Sky/weather.....................Clear. * Min Temperature.................75-80. * 24 hr trend..................4 degrees cooler. * Max Humidity....................55-69 pct. * 24 hr trend..................5 pct wetter. * Winds - 20 foot...Slope/Valley..Southeast 5 to 15 mph. * Winds...10000 FT MSL............South 15 to 25 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............1 percent. .SATURDAY... * Sky/weather.....................Sunny. * Max Temperature.................100-105. * 24 hr trend..................Little change. * Min Humidity....................18-24 pct. * 24 hr trend..................4 pct drier. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............South 10 to 20 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............2 percent. * Mixing Height for Yuma..........8000 ft AGL. * Transport Wind for Yuma.........South 9 knots. * Dispersion for Yuma.............Good. .SATURDAY NIGHT... * Sky/weather.....................Clear. * Min Temperature.................73-78. * 24 hr trend..................3 degrees cooler. * Max Humidity....................47-66 pct. * 24 hr trend..................6 pct drier. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............Light and variable in the evening becoming south 5 to 15 mph after midnight. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............1 percent. .SUNDAY... * Sky/weather.....................Sunny. * Max Temperature.................101-106. * 24 hr trend..................Little change. * Min Humidity....................13-17 pct. * 24 hr trend..................6 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. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. * Mixing Height for Yuma..........8300 ft AGL. * Transport Wind for Yuma.........South 8 knots. * Dispersion for Yuma.............Good. .EXTENDED... .MONDAY...Mostly clear. Lows 72-80. Highs 103-108. South winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .TUESDAY...Mostly clear. Lows 75-84. Highs 105-110. South winds 5 to 15 mph. .WEDNESDAY...Mostly clear. Lows 79-87. Highs 107-112. South winds 5 to 10 mph. .THURSDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 82-88. Highs 109-114. .FRIDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 83-88. Highs 110-115. $$ AZZ133-160900- Southern Gila County/Tonto National Forest Foothills- Southern Tonto NF/West San Carlos BIA/South Portion Ft Apache BIA/ CAZ- 151 PM MST Fri Aug 15 2025 .TONIGHT... * Sky/weather.....................Partly cloudy. Chance of showers and thunderstorms. * Min Temperature.................61-78. * 24 hr trend..................3 degrees warmer. * Max Humidity....................58-81 pct. * 24 hr trend..................10 pct wetter. * Winds - 20 foot...Slope/Valley..Southwest 5 to 10 mph in the evening becoming southeast after midnight. * Winds...10000 FT MSL............Southwest 5 to 15 mph. * Chance of Precip................50 percent. * CWR (>= 0.10 IN)................30 percent. * Chance of Thunder...............40 percent. .SATURDAY... * Sky/weather.....................Partly sunny. Slight chance of showers and thunderstorms in the morning becoming chance of showers and thunderstorms in the afternoon. * Max Temperature.................82-97. * 24 hr trend..................Little change. * Min Humidity....................25-37 pct. * 24 hr trend..................4 pct wetter. * Winds - 20 foot...Slope/Valley..Southwest 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................40 percent. * CWR (>= 0.10 IN)................20 percent. * Chance of Thunder...............35 percent. .SATURDAY NIGHT... * Sky/weather.....................Mostly clear. Chance of showers and slight chance of thunderstorms in the evening. * Min Temperature.................60-78. * 24 hr trend..................Little change. * Max Humidity....................45-75 pct. * 24 hr trend..................12 pct drier. * Winds - 20 foot...Slope/Valley..West 5 to 10 mph in the evening becoming north after midnight. * Winds...10000 FT MSL............Southwest 10 to 15 mph. * Chance of Precip................30 percent in the evening becoming 10 percent after midnight. * CWR (>= 0.10 IN)................10 percent. * Chance of Thunder...............25 percent. .SUNDAY... * Sky/weather.....................Mostly sunny. Slight chance of showers and thunderstorms in the afternoon. * Max Temperature.................86-100. * 24 hr trend..................3 degrees warmer. * Min Humidity....................14-23 pct. * 24 hr trend..................13 pct drier. * Winds - 20 foot...Slope/Valley..West 5 to 15 mph. * Winds...10000 FT MSL............Southwest 5 to 15 mph in the morning becoming light and variable in the afternoon. * Chance of Precip................10 percent. * CWR (>= 0.10 IN)................5 percent. * Chance of Thunder...............6 percent. .EXTENDED... .MONDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 63-81. Highs 89-103. West winds 5 to 15 mph. .TUESDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 64-83. Highs 91-105. Southeast winds 5 to 15 mph. .WEDNESDAY...Partly cloudy with chance of showers and thunderstorms. Lows 65-85. Highs 91-106. Southeast winds 5 to 15 mph. .THURSDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 65-86. Highs 92-108. .FRIDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 66-86. Highs 92-108. $$ CAZ232-160900- Imperial County And Eastern Riverside County- 151 PM PDT Fri Aug 15 2025 .TONIGHT... * Sky/weather.....................Clear. * Min Temperature.................73-80. * 24 hr trend..................3 degrees cooler. * Max Humidity....................45-69 pct. * 24 hr trend..................8 pct wetter. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............South 10 to 20 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. .SATURDAY... * Sky/weather.....................Sunny. * Max Temperature.................95-104. * 24 hr trend..................Little change. * Min Humidity....................14-19 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..Southeast 5 to 15 mph. * Winds...10000 FT MSL............South 10 to 20 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............1 percent. .SATURDAY NIGHT... * Sky/weather.....................Clear. * Min Temperature.................72-79. * 24 hr trend..................Little change. * Max Humidity....................32-64 pct. * 24 hr trend..................10 pct drier. * Winds - 20 foot...Slope/Valley..Southwest 5 to 15 mph. * Winds...10000 FT MSL............Southwest 5 to 15 mph in the evening becoming light and variable after midnight. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. .SUNDAY... * Sky/weather.....................Sunny. * Max Temperature.................96-105. * 24 hr trend..................Little change. * Min Humidity....................12-19 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..Southeast 5 to 15 mph. * Winds...10000 FT MSL............South 10 to 15 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............1 percent. .EXTENDED... .MONDAY...Clear. Lows 73-82. Highs 97-106. South winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .TUESDAY...Mostly clear. Lows 76-86. Highs 100-109. South winds 5 to 15 mph. .WEDNESDAY...Mostly clear. Lows 80-89. Highs 102-111. Southwest winds 5 to 15 mph. .THURSDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 83-90. Highs 105-114. .FRIDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 83-90. Highs 105-114. $$ CAZ230-160900- Joshua Tree National Park- 151 PM PDT Fri Aug 15 2025 .TONIGHT... * Sky/weather.....................Clear. * Min Temperature.................62-74. * 24 hr trend..................Little change. * Max Humidity....................31-50 pct. * 24 hr trend..................10 pct wetter. * Winds - 20 foot...Slope/Valley..Southwest 5 to 15 mph. * Winds...10000 FT MSL............Southwest 5 to 15 mph in the evening becoming south after midnight. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. .SATURDAY... * Sky/weather.....................Sunny. * Max Temperature.................85-98. * 24 hr trend..................Little change. * Min Humidity....................15-21 pct. * 24 hr trend..................4 pct wetter. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............South 10 to 20 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............2 percent. .SATURDAY NIGHT... * Sky/weather.....................Clear. * Min Temperature.................63-74. * 24 hr trend..................Little change. * Max Humidity....................31-39 pct. * 24 hr trend..................6 pct drier. * Winds - 20 foot...Slope/Valley..West 5 to 15 mph. * Winds...10000 FT MSL............Light and variable in the evening becoming south 5 to 15 mph after midnight. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. .SUNDAY... * Sky/weather.....................Sunny. * Max Temperature.................85-99. * 24 hr trend..................Little change. * Min Humidity....................12-17 pct. * 24 hr trend..................3 pct drier. * Winds - 20 foot...Slope/Valley..Northwest 5 to 10 mph in the morning becoming south 5 to 15 mph in the afternoon. * Winds...10000 FT MSL............South 10 to 20 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............2 percent. .EXTENDED... .MONDAY...Clear. Lows 66-77. Highs 87-101. Southwest winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .TUESDAY...Mostly clear. Lows 68-81. Highs 89-103. Southwest winds 5 to 15 mph. .WEDNESDAY...Mostly clear. Lows 71-85. Highs 93-106. Southwest winds 5 to 15 mph. .THURSDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 75-85. Highs 95-108. .FRIDAY...Mostly clear with chance of showers and slight chance of thunderstorms. Lows 75-85. Highs 95-109. $$ .8 TO 10 DAY OUTLOOK...Saturday August 23rd through Monday August 25th: Above normal temperatures and above median precipitation.