Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Phoenix, AZ
Issued by NWS Phoenix, AZ
162 FNUS55 KPSR 130813 FWFPSR Fire Weather Planning Forecast for Southwest and South-Central Arizona and Southeast California National Weather Service Phoenix AZ 113 AM MST Wed Aug 13 2025 .DISCUSSION... A more active monsoon weather pattern is expected over the next few days as moisture increases and temperatures begin to cool. Storm activity today should be more concentrated over the Arizona higher terrain, but there should also be some isolated evening storms and gusty outflow winds into the lower deserts. Better moisture for Thursday and Friday will result in continued rain chances across much of the eastern districts with wetting rainfall chances as high as 30-40% for the eastern districts. Minimum afternoon humidity levels will mostly range between 15-25% with fair to good overnight recoveries. Outside areas of thunderstorms, winds will continue to follow diurnal trends with afternoon gusts up to 15-20 mph. ...Thunderstorms imply gusty winds... Note...Additional Fire Weather Forecast information can be found in the Area Forecast Discussion. See product PHXAFDPSR. AZZ132-132015- 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- 113 AM MST Wed Aug 13 2025 .TODAY... * Sky/weather.....................Sunny. * Max Temperature.................105-111. * 24 hr trend..................Little change. * Min Humidity....................15-20 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..South 5 to 10 mph in the morning becoming southwest in the afternoon. * Winds...10000 FT MSL............West 5 to 15 mph. * Chance of Precip................10 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............12 percent. * Mixing Height for Phoenix.......10000 ft AGL. * Transport Wind for Phoenix......West 8 knots. * Dispersion for Phoenix..........Very good. .TONIGHT... * Sky/weather.....................Mostly clear. Slight chance of showers and thunderstorms in the evening. * Min Temperature.................80-90. * 24 hr trend..................Little change. * Max Humidity....................39-47 pct. * 24 hr trend..................6 pct wetter. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............Northwest 5 to 15 mph in the evening becoming light and variable after midnight. * Chance of Precip................10 percent in the evening becoming 0 percent after midnight. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............13 percent. .THURSDAY... * Sky/weather.....................Partly sunny. Slight chance of showers and thunderstorms in the afternoon. * Max Temperature.................103-110. * 24 hr trend..................Little change. * Min Humidity....................18-23 pct. * 24 hr trend..................3 pct wetter. * 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............Light and variable in the morning becoming southwest 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)................0 percent. * Chance of Thunder...............21 percent. * Mixing Height for Phoenix.......11700 ft AGL. * Transport Wind for Phoenix......West 9 knots. * Dispersion for Phoenix..........Excellent. .EXTENDED... .FRIDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows 77-87. Highs 99-106. South winds 10 to 20 mph. .SATURDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 72-82. Highs 98-105. South winds 5 to 15 mph. .SUNDAY...Clear. Lows 72-82. Highs 99-105. South winds 5 to 10 mph. .MONDAY...Mostly clear. Lows 74-84. Highs 100-106. .TUESDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 76-86. Highs 102-107. $$ AZZ131-CAZ231-132015- Yuma/Martinez Lake and Vicinity/Lower Colorado River Valley AZ- Lower Colorado River Valley CA- 113 AM MST Wed Aug 13 2025 /113 AM PDT Wed Aug 13 2025/ .TODAY... * Sky/weather.....................Sunny. * Max Temperature.................107-112. * 24 hr trend..................Little change. * Min Humidity....................16-21 pct. * 24 hr trend..................Little RH change. * 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................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............7 percent. * Mixing Height for Yuma..........5900 ft AGL. * Transport Wind for Yuma.........South 13 knots. * Dispersion for Yuma.............Very good. .TONIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................79-84. * 24 hr trend..................Little change. * Max Humidity....................46-63 pct. * 24 hr trend..................8 pct wetter. * Winds - 20 foot...Slope/Valley..South 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...............7 percent. .THURSDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................107-112. * 24 hr trend..................Little change. * Min Humidity....................17-23 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..South 10 to 20 mph. * Winds...10000 FT MSL............Southwest 10 to 20 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............7 percent. * Mixing Height for Yuma..........6300 ft AGL. * Transport Wind for Yuma.........South 16 knots. * Dispersion for Yuma.............Very good. .EXTENDED... .FRIDAY...Mostly clear with slight chance of showers. Lows 77-84. Highs 102-107. South winds 10 to 20 mph. .SATURDAY...Clear. Lows 72-81. Highs 101-106. South winds 5 to 15 mph. .SUNDAY...Clear. Lows 72-77. Highs 101-106. South winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .MONDAY...Clear. Lows 72-79. Highs 103-108. .TUESDAY...Mostly clear. Lows 75-82. Highs 103-108. $$ AZZ133-132015- Southern Gila County/Tonto National Forest Foothills- Southern Tonto NF/West San Carlos BIA/South Portion Ft Apache BIA/ CAZ- 113 AM MST Wed Aug 13 2025 .TODAY... * Sky/weather.....................Mostly sunny. Haze in the afternoon. Slight chance of showers and thunderstorms in the afternoon. * Max Temperature.................92-105. * 24 hr trend..................Little change. * Min Humidity....................15-22 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..West 5 to 15 mph. * Winds...10000 FT MSL............Northwest 10 to 20 mph. * Chance of Precip................0 percent in the morning becoming 30 percent in the afternoon. * CWR (>= 0.10 IN)................10 percent. * Chance of Thunder...............34 percent. .TONIGHT... * Sky/weather.....................Partly cloudy. Haze and areas of smoke in the evening. Slight chance of showers and thunderstorms in the evening. * Min Temperature.................63-82. * 24 hr trend..................Little change. * Max Humidity....................41-60 pct. * 24 hr trend..................3 pct wetter. * Winds - 20 foot...Slope/Valley..Northwest 5 to 15 mph in the evening becoming northeast 5 to 10 mph after midnight. * Winds...10000 FT MSL............North 10 to 20 mph. * Chance of Precip................20 percent in the evening becoming 0 percent after midnight. * CWR (>= 0.10 IN)................10 percent. * Chance of Thunder...............20 percent. .THURSDAY... * Sky/weather.....................Partly sunny. Chance of showers and thunderstorms in the afternoon. * Max Temperature.................89-104. * 24 hr trend..................Little change. * Min Humidity....................18-26 pct. * 24 hr trend..................3 pct wetter. * Winds - 20 foot...Slope/Valley..South 5 to 10 mph in the morning becoming west 5 to 15 mph in the afternoon. * Winds...10000 FT MSL............Light and variable in the morning becoming west 5 to 15 mph in the afternoon. * Chance of Precip................10 percent in the morning becoming 50 percent in the afternoon. * CWR (>= 0.10 IN)................10 percent. * Chance of Thunder...............45 percent. .EXTENDED... .FRIDAY...Showers likely and chance of thunderstorms. Lows 62-81. Highs 85-100. South winds 5 to 15 mph. .SATURDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows 62-80. Highs 85-100. Southwest winds 5 to 15 mph. .SUNDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 62-80. Highs 87-101. West winds 5 to 15 mph. .MONDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 64-82. Highs 88-102. .TUESDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 65-82. Highs 89-104. $$ CAZ232-132015- Imperial County And Eastern Riverside County- 113 AM PDT Wed Aug 13 2025 .TODAY... * Sky/weather.....................Sunny. Haze in the morning. * Max Temperature.................103-113. * 24 hr trend..................Little change. * Min Humidity....................12-19 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............Southwest 10 to 15 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............4 percent. .TONIGHT... * Sky/weather.....................Clear. Haze in the evening. * Min Temperature.................78-85. * 24 hr trend..................Little change. * Max Humidity....................31-67 pct. * 24 hr trend..................4 pct wetter. * Winds - 20 foot...Slope/Valley..South 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...............4 percent. .THURSDAY... * Sky/weather.....................Sunny. * Max Temperature.................102-112. * 24 hr trend..................Little change. * Min Humidity....................10-18 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..South 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...............4 percent. .EXTENDED... .FRIDAY...Clear. Lows 73-83. Highs 98-108. South winds 10 to 20 mph. Minimum relative humidity may be lower than 15 percent. .SATURDAY...Clear. Lows 72-81. Highs 96-105. South winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .SUNDAY...Clear. Lows 72-79. Highs 96-105. South winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .MONDAY...Clear. Lows 72-82. Highs 97-106. .TUESDAY...Mostly clear. Lows 75-84. Highs 98-107. $$ CAZ230-132015- Joshua Tree National Park- 113 AM PDT Wed Aug 13 2025 .TODAY... * Sky/weather.....................Sunny. Haze in the afternoon. * Max Temperature.................94-107. * 24 hr trend..................Little change. * Min Humidity....................11-16 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..South 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...............1 percent. .TONIGHT... * Sky/weather.....................Clear. Haze in the evening. * Min Temperature.................70-80. * 24 hr trend..................Little change. * Max Humidity....................26-35 pct. * 24 hr trend..................5 pct wetter. * 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. .THURSDAY... * Sky/weather.....................Sunny. * Max Temperature.................92-106. * 24 hr trend..................Little change. * Min Humidity....................11-17 pct. * 24 hr trend..................Little change. * Winds - 20 foot...Slope/Valley..South 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...............3 percent. .EXTENDED... .FRIDAY...Mostly clear. Lows 64-77. Highs 87-101. Southwest winds 10 to 20 mph. Minimum relative humidity may be lower than 15 percent. .SATURDAY...Clear. Lows 64-74. Highs 86-99. Southwest winds 5 to 15 mph. .SUNDAY...Clear. Lows 64-74. Highs 86-99. Southwest winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .MONDAY...Clear. Lows 64-76. Highs 87-101. .TUESDAY...Mostly clear. Lows 66-78. Highs 89-102. $$ .8 TO 10 DAY OUTLOOK...Wednesday August 20th through Friday August 22nd: Near to above normal temperatures and near to below median precipitation.