Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Phoenix, AZ
Issued by NWS Phoenix, AZ
925 FNUS55 KPSR 030731 FWFPSR Fire Weather Planning Forecast for Southwest and South-Central Arizona and Southeast California National Weather Service Phoenix AZ 1231 AM MST Sun Aug 3 2025 .DISCUSSION... Unusually hot and dry conditions will continue for the start of the new week with temperatures gradually trending hotter through the middle part of the week. Min RHs will fall into the 5-10% range through the next couple of days, while Max RHs range between 25-40% for most areas. 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. AZZ132-031945- 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- 1231 AM MST Sun Aug 3 2025 .TODAY... * Sky/weather.....................Sunny. * Max Temperature.................105-112. * 24 hr trend..................Little change. * Min Humidity....................7-12 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..South 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. * Mixing Height for Phoenix.......9400 ft AGL. * Transport Wind for Phoenix......West 9 knots. * Dispersion for Phoenix..........Very good. .TONIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................76-86. * 24 hr trend..................Little change. * Max Humidity....................23-45 pct. * 24 hr trend..................9 pct wetter. * 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. .MONDAY... * Sky/weather.....................Sunny. * Max Temperature.................105-112. * 24 hr trend..................Little change. * Min Humidity....................10-15 pct. * 24 hr trend..................3 pct wetter. * Winds - 20 foot...Slope/Valley..South 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. * Mixing Height for Phoenix.......12400 ft AGL. * Transport Wind for Phoenix......Southwest 10 knots. * Dispersion for Phoenix..........Excellent. .EXTENDED... .TUESDAY...Mostly clear. Lows 80-90. Highs 107-114. South winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .WEDNESDAY...Mostly clear. Lows 82-92. Highs 110-116. Southwest winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .THURSDAY...Mostly clear. Lows 83-93. Highs 111-117. Southwest winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .FRIDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 80-90. Highs 106-111. .SATURDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 79-89. Highs 103-109. $$ AZZ131-CAZ231-031945- Yuma/Martinez Lake and Vicinity/Lower Colorado River Valley AZ- Lower Colorado River Valley CA- 1231 AM MST Sun Aug 3 2025 /1231 AM PDT Sun Aug 3 2025/ .TODAY... * Sky/weather.....................Sunny. * Max Temperature.................107-112. * 24 hr trend..................Little change. * Min Humidity....................6-11 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..South 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. * Mixing Height for Yuma..........7700 ft AGL. * Transport Wind for Yuma.........South 8 knots. * Dispersion for Yuma.............Good. .TONIGHT... * Sky/weather.....................Clear. * Min Temperature.................73-79. * 24 hr trend..................Little change. * Max Humidity....................31-58 pct. * 24 hr trend..................12 pct wetter. * Winds - 20 foot...Slope/Valley..South 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. .MONDAY... * Sky/weather.....................Sunny. * Max Temperature.................107-112. * 24 hr trend..................Little change. * Min Humidity....................10-15 pct. * 24 hr trend..................4 pct wetter. * 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. * Mixing Height for Yuma..........7300 ft AGL. * Transport Wind for Yuma.........South 13 knots. * Dispersion for Yuma.............Very good. .EXTENDED... .TUESDAY...Mostly clear. Lows 77-85. Highs 109-114. South winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .WEDNESDAY...Mostly clear. Lows 80-87. Highs 111-116. South winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .THURSDAY...Mostly clear. Lows 82-87. Highs 112-117. Southwest winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .FRIDAY...Mostly clear. Lows 80-87. Highs 108-113. .SATURDAY...Mostly clear. Lows 78-84. Highs 105-110. $$ AZZ133-031945- Southern Gila County/Tonto National Forest Foothills- Southern Tonto NF/West San Carlos BIA/South Portion Ft Apache BIA/ CAZ- 1231 AM MST Sun Aug 3 2025 .TODAY... * Sky/weather.....................Sunny. * Max Temperature.................93-107. * 24 hr trend..................Little change. * Min Humidity....................5-9 pct. * 24 hr trend..................4 pct drier. * Winds - 20 foot...Slope/Valley..Southwest 5 to 15 mph. * Winds...10000 FT MSL............West 15 to 25 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. .TONIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................62-79. * 24 hr trend..................Little change. * Max Humidity....................20-26 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..West 5 to 10 mph in the evening becoming north after midnight. * Winds...10000 FT MSL............West 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...............0 percent. .MONDAY... * Sky/weather.....................Sunny. * Max Temperature.................94-108. * 24 hr trend..................Little change. * Min Humidity....................8-12 pct. * 24 hr trend..................3 pct wetter. * Winds - 20 foot...Slope/Valley..Southeast 5 to 10 mph in the morning becoming west 5 to 15 mph in the afternoon. * Winds...10000 FT MSL............West 15 to 25 mph in the morning becoming 5 to 15 mph in the afternoon. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. .EXTENDED... .TUESDAY...Mostly clear. Lows 64-85. Highs 96-110. Northwest winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .WEDNESDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 67-85. Highs 98-113. North winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .THURSDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 67-85. Highs 98-113. Southeast winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .FRIDAY...Mostly clear with slight chance of showers and thunderstorms. Lows 66-85. Highs 95-108. .SATURDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows 64-83. Highs 92-105. $$ CAZ232-031945- Imperial County And Eastern Riverside County- 1231 AM PDT Sun Aug 3 2025 .TODAY... * Sky/weather.....................Sunny. * Max Temperature.................102-112. * 24 hr trend..................Little change. * Min Humidity....................4-8 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..South 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. .TONIGHT... * Sky/weather.....................Clear. * Min Temperature.................74-81. * 24 hr trend..................Little change. * Max Humidity....................17-49 pct. * 24 hr trend..................6 pct wetter. * Winds - 20 foot...Slope/Valley..West 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. .MONDAY... * Sky/weather.....................Sunny. * Max Temperature.................103-112. * 24 hr trend..................Little change. * Min Humidity....................5-12 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. .EXTENDED... .TUESDAY...Mostly clear. Lows 77-86. Highs 104-113. Southwest winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .WEDNESDAY...Mostly clear. Lows 80-89. Highs 106-115. Southwest winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .THURSDAY...Mostly clear. Lows 82-89. Highs 107-117. Southwest winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .FRIDAY...Mostly clear. Lows 79-89. Highs 104-114. .SATURDAY...Mostly clear. Lows 77-85. Highs 102-111. $$ CAZ230-031945- Joshua Tree National Park- 1231 AM PDT Sun Aug 3 2025 .TODAY... * Sky/weather.....................Sunny. * Max Temperature.................92-107. * 24 hr trend..................Little change. * Min Humidity....................5-9 pct. * 24 hr trend..................Little RH change. * 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. .TONIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................66-76. * 24 hr trend..................Little change. * Max Humidity....................16-23 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..West 5 to 15 mph. * Winds...10000 FT MSL............West 5 to 15 mph in the evening becoming southwest 15 to 25 mph after midnight. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. .MONDAY... * Sky/weather.....................Sunny. * Max Temperature.................92-106. * 24 hr trend..................Little change. * Min Humidity....................6-10 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..West 5 to 10 mph in the morning becoming south 5 to 15 mph in the afternoon. * 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. .EXTENDED... .TUESDAY...Mostly clear. Lows 68-81. Highs 93-107. Southwest winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .WEDNESDAY...Mostly clear. Lows 71-83. Highs 95-109. Southwest winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .THURSDAY...Mostly clear. Lows 73-83. Highs 97-111. West winds 10 to 20 mph. Minimum relative humidity may be lower than 15 percent. .FRIDAY...Mostly clear. Lows 70-83. Highs 94-108. .SATURDAY...Mostly clear. Lows 68-80. Highs 91-105. $$ .8 TO 10 DAY OUTLOOK...Sunday August 10th through Tuesday August 12th: Above normal temperatures and near median precipitation.