Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Phoenix, AZ
Issued by NWS Phoenix, AZ
402 FNUS55 KPSR 112028 FWFPSR Fire Weather Planning Forecast for Southwest and South-Central Arizona and Southeast California National Weather Service Phoenix AZ 128 PM MST Mon May 11 2026 .DISCUSSION... Hot and dry conditions will prevail with lower desert highs topping out 10 to 15 degrees above normal through Tuesday. Minimum humidity levels will bottom out around 10% or less each afternoon with overnight recoveries remaining poor to fair, averaging 20-35%. There will be increased breeziness, particularly across the western districts Tuesday afternoon where gusts up to 25-30 mph will be possible. These stronger winds coupled with very dry conditions will result in elevated to near critical fire weather. Note...Additional Fire Weather Forecast information can be found in the Area Forecast Discussion. See product PHXAFDPSR. AZZ132-120830- 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- 128 PM MST Mon May 11 2026 .TONIGHT... * Sky/weather.....................Clear. * Min Temperature.................69-79. * 24 hr trend..................Little change. * Max Humidity....................17-28 pct. * 24 hr trend..................4 pct wetter. * Winds - 20 foot...Slope/Valley..West 5 to 10 mph in the evening becoming south after midnight. * Winds...10000 FT MSL............Southeast 10 to 20 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. .TUESDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................100-107. * 24 hr trend..................3 degrees cooler. * Min Humidity....................7-11 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............South 25 to 35 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. * Mixing Height for Phoenix.......14900 ft AGL. * Transport Wind for Phoenix......South 7 knots. * Dispersion for Phoenix..........Excellent. .TUESDAY NIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................67-77. * 24 hr trend..................Little change. * Max Humidity....................15-31 pct. * 24 hr trend..................Little RH change. * 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............South 30 to 40 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. .WEDNESDAY... * Sky/weather.....................Partly sunny. * Max Temperature.................94-101. * 24 hr trend..................6 degrees cooler. * Min Humidity....................6-10 pct. * 24 hr trend..................Little RH change. * 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............South 25 to 35 mph in the morning becoming southwest 15 to 25 mph in the afternoon. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. * Mixing Height for Phoenix.......11800 ft AGL. * Transport Wind for Phoenix......Southwest 16 knots. * Dispersion for Phoenix..........Excellent. .EXTENDED... .THURSDAY...Clear. Lows 63-73. Highs 92-99. Southwest winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .FRIDAY...Clear. Lows 63-73. Highs 94-100. Southwest winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .SATURDAY...Clear. Lows 63-73. Highs 95-101. South winds 10 to 20 mph. Minimum relative humidity may be lower than 15 percent. .SUNDAY...Clear. Lows 62-72. Highs 93-99. .MONDAY...Mostly clear. Lows 62-72. Highs 92-98. $$ AZZ131-CAZ231-120830- Yuma/Martinez Lake and Vicinity/Lower Colorado River Valley AZ- Lower Colorado River Valley CA- 128 PM MST Mon May 11 2026 /128 PM PDT Mon May 11 2026/ .TONIGHT... * Sky/weather.....................Clear. * Min Temperature.................68-74. * 24 hr trend..................Little change. * Max Humidity....................25-40 pct. * 24 hr trend..................5 pct wetter. * Winds - 20 foot...Slope/Valley..Southwest 5 to 10 mph in the evening becoming south after midnight. * Winds...10000 FT MSL............Southeast 10 to 20 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. .TUESDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................102-107. * 24 hr trend..................4 degrees cooler. * Min Humidity....................7-11 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..South 10 to 20 mph. * Winds...10000 FT MSL............Southeast 35 to 45 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. * Mixing Height for Yuma..........8000 ft AGL. * Transport Wind for Yuma.........South 20 knots. * Dispersion for Yuma.............Excellent. .TUESDAY NIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................65-70. * 24 hr trend..................3 degrees cooler. * Max Humidity....................28-46 pct. * 24 hr trend..................4 pct wetter. * Winds - 20 foot...Slope/Valley..South 5 to 15 mph. * Winds...10000 FT MSL............South 30 to 40 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. .WEDNESDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................96-101. * 24 hr trend..................5 degrees cooler. * Min Humidity....................7-11 pct. * 24 hr trend..................Little 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..........11100 ft AGL. * Transport Wind for Yuma.........Southwest 9 knots. * Dispersion for Yuma.............Excellent. .EXTENDED... .THURSDAY...Clear. Lows 62-68. Highs 95-100. Southwest winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .FRIDAY...Clear. Lows 63-69. Highs 97-102. South winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .SATURDAY...Clear. Lows 63-69. Highs 98-103. South winds 10 to 20 mph. Minimum relative humidity may be lower than 15 percent. .SUNDAY...Clear. Lows 62-68. Highs 95-100. .MONDAY...Mostly clear. Lows 62-67. Highs 94-99. $$ AZZ133-120830- Southern Gila County/Tonto National Forest Foothills- Southern Tonto NF/West San Carlos BIA/South Portion Ft Apache BIA/ CAZ- 128 PM MST Mon May 11 2026 .TONIGHT... * Sky/weather.....................Clear. * Min Temperature.................56-73. * 24 hr trend..................Little change. * Max Humidity....................19-31 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..Northwest 5 to 10 mph in the evening becoming east after midnight. * 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. .TUESDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................89-103. * 24 hr trend..................Little change. * Min Humidity....................8-12 pct. * 24 hr trend..................Little RH change. * 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............South 10 to 15 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. .TUESDAY NIGHT... * Sky/weather.....................Partly cloudy. * Min Temperature.................58-73. * 24 hr trend..................Little change. * Max Humidity....................18-33 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..West 5 to 15 mph in the evening becoming south 5 to 10 mph after midnight. * Winds...10000 FT MSL............Southwest 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. .WEDNESDAY... * Sky/weather.....................Partly sunny. * Max Temperature.................84-98. * 24 hr trend..................5 degrees cooler. * Min Humidity....................6-14 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..South 5 to 10 mph in the morning becoming southwest 5 to 15 mph in the afternoon. * Winds...10000 FT MSL............Southwest 25 to 35 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. .EXTENDED... .THURSDAY...Clear. Lows 50-66. Highs 80-95. Southwest winds 10 to 20 mph. Minimum relative humidity may be lower than 15 percent. .FRIDAY...Clear. Lows 50-66. Highs 82-96. Southwest winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .SATURDAY...Clear. Lows 51-66. Highs 82-97. Southwest winds 10 to 20 mph. Minimum relative humidity may be lower than 15 percent. .SUNDAY...Clear. Lows 51-66. Highs 81-96. .MONDAY...Mostly clear. Lows 51-66. Highs 82-95. $$ CAZ232-120830- Imperial County And Eastern Riverside County- 128 PM PDT Mon May 11 2026 .TONIGHT... * Sky/weather.....................Clear. * Min Temperature.................70-78. * 24 hr trend..................Little change. * Max Humidity....................16-45 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..Southwest 5 to 10 mph in the evening becoming south after midnight. * Winds...10000 FT MSL............Southeast 15 to 25 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. .TUESDAY... * Sky/weather.....................Sunny. * Max Temperature.................96-106. * 24 hr trend..................4 degrees cooler. * Min Humidity....................7-14 pct. * 24 hr trend..................3 pct wetter. * Winds - 20 foot...Slope/Valley..Southeast 5 to 10 mph in the morning becoming south 10 to 20 mph in the afternoon. * Winds...10000 FT MSL............Southeast 25 to 35 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. .TUESDAY NIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................66-73. * 24 hr trend..................5 degrees cooler. * Max Humidity....................28-44 pct. * 24 hr trend..................8 pct wetter. * Winds - 20 foot...Slope/Valley..Southwest 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. .WEDNESDAY... * Sky/weather.....................Sunny. * Max Temperature.................91-101. * 24 hr trend..................5 degrees cooler. * Min Humidity....................7-13 pct. * 24 hr trend..................Little 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. .EXTENDED... .THURSDAY...Clear. Lows 63-71. Highs 90-99. West winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .FRIDAY...Clear. Lows 65-72. Highs 93-102. Southwest winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .SATURDAY...Clear. Lows 64-72. Highs 94-103. Southwest winds 10 to 20 mph. Minimum relative humidity may be lower than 15 percent. .SUNDAY...Clear. Lows 64-71. Highs 91-99. .MONDAY...Mostly clear. Lows 64-71. Highs 90-98. $$ CAZ230-120830- Joshua Tree National Park- 128 PM PDT Mon May 11 2026 .TONIGHT... * Sky/weather.....................Clear. * Min Temperature.................63-75. * 24 hr trend..................Little change. * Max Humidity....................16-21 pct. * 24 hr trend..................4 pct drier. * Winds - 20 foot...Slope/Valley..Southwest 5 to 15 mph in the evening becoming northwest after midnight. * Winds...10000 FT MSL............Southeast 10 to 20 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. .TUESDAY... * Sky/weather.....................Sunny. * Max Temperature.................86-100. * 24 hr trend..................4 degrees cooler. * Min Humidity....................8-13 pct. * 24 hr trend..................3 pct wetter. * Winds - 20 foot...Slope/Valley..South 5 to 10 mph in the morning becoming 10 to 20 mph in the afternoon. * Winds...10000 FT MSL............Southeast 25 to 35 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * Chance of Thunder...............0 percent. .TUESDAY NIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................56-69. * 24 hr trend..................6 degrees cooler. * Max Humidity....................29-40 pct. * 24 hr trend..................16 pct wetter. * Winds - 20 foot...Slope/Valley..Southwest 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. .WEDNESDAY... * Sky/weather.....................Sunny. * Max Temperature.................79-95. * 24 hr trend..................6 degrees cooler. * Min Humidity....................10-19 pct. * 24 hr trend..................3 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. .EXTENDED... .THURSDAY...Clear. Lows 52-67. Highs 80-93. West winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .FRIDAY...Clear. Lows 56-68. Highs 84-97. West winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .SATURDAY...Clear. Lows 55-68. Highs 84-97. Southwest winds 10 to 20 mph. Minimum relative humidity may be lower than 15 percent. .SUNDAY...Clear. Lows 55-67. Highs 82-94. .MONDAY...Mostly clear. Lows 56-67. Highs 81-93. $$ .8 TO 10 DAY OUTLOOK...Tuesday May 19th through Thursday May 21st: Above normal temperatures and above median precipitation.