Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Phoenix, AZ
Issued by NWS Phoenix, AZ
914 FNUS55 KPSR 311943 FWFPSR Fire Weather Planning Forecast for Southwest and South-Central Arizona and Southeast California National Weather Service Phoenix AZ 1243 PM MST Thu Jul 31 2025 .DISCUSSION... The limited monsoon moisture will provide for another day of mostly high terrain scattered showers and isolated thunderstorms with diminishing chances already by Friday. Chances for wetting rains will remain below 10% resulting in at least minor risk of dry lightning. Afternoon MinRHs today and Friday will mostly be between 10-15% across the lower deserts to 15-20% in higher terrain areas before dropping further into the weekend. Outside of the influence of thunderstorms, winds will generally follow diurnal tendencies with typical afternoon upslope gustiness. Temperatures will remain above normal with lower desert highs mostly between 108-114 degrees. ...Thunderstorms imply gusty winds... Note...Additional Fire Weather Forecast information can be found in the Area Forecast Discussion. See product PHXAFDPSR. AZZ132-010745- 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- 1243 PM MST Thu Jul 31 2025 .TONIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................78-88. * 24 hr trend..................Little change. * Max Humidity....................34-44 pct. * 24 hr trend..................7 pct wetter. * Winds - 20 foot...Slope/Valley..Southwest 5 to 10 mph in the evening becoming southeast after midnight. * Winds...10000 FT MSL............South 5 to 15 mph in the evening becoming 15 to 25 mph after midnight. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............4 percent. .FRIDAY... * Sky/weather.....................Sunny. * Max Temperature.................106-112. * 24 hr trend..................Little change. * Min Humidity....................9-14 pct. * 24 hr trend..................6 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...............1 percent. * Mixing Height for Phoenix.......13600 ft AGL. * Transport Wind for Phoenix......Southwest 8 knots. * Dispersion for Phoenix..........Excellent. .FRIDAY NIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................77-87. * 24 hr trend..................Little change. * Max Humidity....................16-28 pct. * 24 hr trend..................17 pct drier. * Winds - 20 foot...Slope/Valley..Southwest 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.................106-113. * 24 hr trend..................Little change. * Min Humidity....................6-10 pct. * 24 hr trend..................4 pct drier. * Winds - 20 foot...Slope/Valley..South 5 to 10 mph in the morning becoming southwest in the afternoon. * Winds...10000 FT MSL............Southwest 10 to 20 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. * Mixing Height for Phoenix.......12000 ft AGL. * Transport Wind for Phoenix......Southwest 12 knots. * Dispersion for Phoenix..........Excellent. .EXTENDED... .SUNDAY...Clear. Lows 75-85. Highs 105-111. Southwest winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .MONDAY...Mostly clear. Lows 76-86. Highs 104-111. South winds 5 to 15 mph. .TUESDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 79-89. Highs 106-112. South winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .WEDNESDAY...Mostly clear. Lows 82-92. Highs 109-115. .THURSDAY...Mostly clear. Lows 82-92. Highs 109-116. $$ AZZ131-CAZ231-010745- Yuma/Martinez Lake and Vicinity/Lower Colorado River Valley AZ- Lower Colorado River Valley CA- 1243 PM MST Thu Jul 31 2025 /1243 PM PDT Thu Jul 31 2025/ .TONIGHT... * Sky/weather.....................Clear. * Min Temperature.................75-80. * 24 hr trend..................Little change. * Max Humidity....................34-51 pct. * 24 hr trend..................5 pct wetter. * Winds - 20 foot...Slope/Valley..South 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...............0 percent. .FRIDAY... * Sky/weather.....................Sunny. * Max Temperature.................107-112. * 24 hr trend..................Little change. * Min Humidity....................8-12 pct. * 24 hr trend..................7 pct drier. * Winds - 20 foot...Slope/Valley..South 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...............0 percent. * Mixing Height for Yuma..........9300 ft AGL. * Transport Wind for Yuma.........South 11 knots. * Dispersion for Yuma.............Excellent. .FRIDAY NIGHT... * Sky/weather.....................Clear. * Min Temperature.................72-79. * 24 hr trend..................Little change. * Max Humidity....................20-30 pct. * 24 hr trend..................18 pct drier. * Winds - 20 foot...Slope/Valley..Southwest 5 to 15 mph. * Winds...10000 FT MSL............Southwest 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.................108-113. * 24 hr trend..................Little change. * Min Humidity....................5-9 pct. * 24 hr trend..................4 pct drier. * Winds - 20 foot...Slope/Valley..West 5 to 15 mph. * Winds...10000 FT MSL............Southwest 10 to 20 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. * Mixing Height for Yuma..........8500 ft AGL. * Transport Wind for Yuma.........Southwest 8 knots. * Dispersion for Yuma.............Very good. .EXTENDED... .SUNDAY...Clear. Lows 71-79. Highs 107-112. South winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .MONDAY...Mostly clear. Lows 74-82. Highs 106-111. South winds 5 to 15 mph. .TUESDAY...Mostly clear. Lows 77-84. Highs 107-112. South winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .WEDNESDAY...Mostly clear. Lows 79-86. Highs 110-115. .THURSDAY...Mostly clear. Lows 81-86. Highs 112-117. $$ AZZ133-010745- Southern Gila County/Tonto National Forest Foothills- Southern Tonto NF/West San Carlos BIA/South Portion Ft Apache BIA/ CAZ- 1243 PM MST Thu Jul 31 2025 .TONIGHT... * Sky/weather.....................Mostly clear. Slight chance of showers and thunderstorms in the evening. * Min Temperature.................65-83. * 24 hr trend..................Little change. * Max Humidity....................37-61 pct. * 24 hr trend..................Little change. * Winds - 20 foot...Slope/Valley..Southwest 5 to 10 mph in the evening becoming east after midnight. * Winds...10000 FT MSL............West 5 to 15 mph in the evening becoming light and variable after midnight. * Chance of Precip................20 percent in the evening becoming 0 percent after midnight. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............14 percent. .FRIDAY... * Sky/weather.....................Mostly sunny. Slight chance of showers and thunderstorms in the afternoon. * Max Temperature.................92-108. * 24 hr trend..................Little change. * Min Humidity....................13-20 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..East 5 to 10 mph in the morning becoming southwest 5 to 15 mph in the afternoon. * Winds...10000 FT MSL............Southwest 10 to 15 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............6 percent. .FRIDAY NIGHT... * Sky/weather.....................Mostly clear. Slight chance of showers and thunderstorms in the evening. * Min Temperature.................66-83. * 24 hr trend..................Little change. * Max Humidity....................24-49 pct. * 24 hr trend..................12 pct drier. * Winds - 20 foot...Slope/Valley..West 5 to 10 mph in the evening becoming northeast after midnight. * 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...............7 percent. .SATURDAY... * Sky/weather.....................Sunny. * Max Temperature.................94-109. * 24 hr trend..................Little change. * Min Humidity....................7-13 pct. * 24 hr trend..................6 pct drier. * Winds - 20 foot...Slope/Valley..Southeast 5 to 10 mph in the morning becoming southwest 5 to 15 mph in the afternoon. * Winds...10000 FT MSL............Southwest 10 to 15 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............2 percent. .EXTENDED... .SUNDAY...Clear. Lows 63-80. Highs 93-107. West winds 10 to 20 mph. Minimum relative humidity may be lower than 15 percent. .MONDAY...Mostly clear. Lows 63-83. Highs 93-107. West winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .TUESDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 65-84. Highs 95-109. Northwest winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .WEDNESDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 66-85. Highs 97-111. .THURSDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 67-85. Highs 96-112. $$ CAZ232-010745- Imperial County And Eastern Riverside County- 1243 PM PDT Thu Jul 31 2025 .TONIGHT... * Sky/weather.....................Clear. * Min Temperature.................75-80. * 24 hr trend..................Little change. * Max Humidity....................18-40 pct. * 24 hr trend..................3 pct drier. * Winds - 20 foot...Slope/Valley..Southwest 5 to 15 mph. * Winds...10000 FT MSL............Southwest 15 to 25 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. .FRIDAY... * Sky/weather.....................Sunny. * Max Temperature.................101-111. * 24 hr trend..................Little change. * Min Humidity....................5-9 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..South 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...............0 percent. .FRIDAY NIGHT... * Sky/weather.....................Clear. * Min Temperature.................75-81. * 24 hr trend..................Little change. * Max Humidity....................15-31 pct. * 24 hr trend..................6 pct drier. * Winds - 20 foot...Slope/Valley..West 5 to 15 mph. * Winds...10000 FT MSL............Southwest 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.................103-112. * 24 hr trend..................Little change. * Min Humidity....................3-7 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..West 5 to 10 mph in the morning becoming southwest in the afternoon. * Winds...10000 FT MSL............Southwest 10 to 20 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. .EXTENDED... .SUNDAY...Clear. Lows 73-81. Highs 102-112. Southwest winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .MONDAY...Mostly clear. Lows 75-83. Highs 101-111. South winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .TUESDAY...Mostly clear. Lows 77-86. Highs 102-112. South winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .WEDNESDAY...Mostly clear. Lows 79-89. Highs 105-115. .THURSDAY...Mostly clear. Lows 82-89. Highs 107-116. $$ CAZ230-010745- Joshua Tree National Park- 1243 PM PDT Thu Jul 31 2025 .TONIGHT... * Sky/weather.....................Clear. * Min Temperature.................66-75. * 24 hr trend..................Little change. * Max Humidity....................16-23 pct. * 24 hr trend..................4 pct drier. * Winds - 20 foot...Slope/Valley..West 5 to 15 mph. * Winds...10000 FT MSL............Southwest 10 to 20 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. .FRIDAY... * Sky/weather.....................Sunny. * Max Temperature.................90-105. * 24 hr trend..................Little change. * Min Humidity....................5-9 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............Southwest 20 to 30 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. .FRIDAY NIGHT... * Sky/weather.....................Clear. * Min Temperature.................67-76. * 24 hr trend..................Little change. * Max Humidity....................14-22 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..West 5 to 15 mph. * Winds...10000 FT MSL............Southwest 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.................92-106. * 24 hr trend..................Little change. * Min Humidity....................5-9 pct. * 24 hr trend..................Little change. * Winds - 20 foot...Slope/Valley..Northwest 5 to 10 mph in the morning becoming southwest in the afternoon. * Winds...10000 FT MSL............Southwest 10 to 20 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. .EXTENDED... .SUNDAY...Clear. Lows 67-76. Highs 92-107. West winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .MONDAY...Mostly clear. Lows 67-77. Highs 91-105. Southwest winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .TUESDAY...Mostly clear. Lows 68-81. Highs 92-106. Southwest winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .WEDNESDAY...Mostly clear. Lows 72-83. Highs 94-108. .THURSDAY...Mostly clear. Lows 74-84. Highs 96-110. $$ .8 TO 10 DAY OUTLOOK...Friday August 8th through Sunday August 10th: Above normal temperatures and near to below median precipitation.