099 
FNUS55 KPSR 100821
FWFPSR

Fire Weather Planning Forecast for Southwest and South-Central
Arizona and Southeast California
National Weather Service Phoenix AZ
121 AM MST Wed Sep 10 2025

.DISCUSSION...
The weather pattern over the next several days will continue to 
bring overall dry conditions with temperatures dropping to 
slightly below normal Thursday into Friday. A weather system 
slowly moving into the region from the northwest will result in 
occasionally breezy conditions with peak winds likely today as 
gusts reach to around 25 mph at times in the afternoon. There will
be some rain chances across the eastern Arizona high terrain today
and Thursday with wetting rain chances of 10-20% across eastern 
Gila County. MinRHs over the next few days are likely to range 
from 10-15% across the western districts to 15-25% across the 
eastern districts.

...Thunderstorms imply gusty winds...

Note...Additional Fire Weather Forecast information can be found
in the Area Forecast Discussion. See product PHXAFDPSR.

AZZ132-102030-
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-
121 AM MST Wed Sep 10 2025

.TODAY...
* Sky/weather.....................Sunny. 
* Max Temperature.................96-105. 
*    24 hr trend..................Little change. 
* Min Humidity....................15-21 pct. 
*    24 hr trend..................Little RH change. 
* Winds - 20 foot...Slope/Valley..South 5 to 15 mph. 
* Winds...10000 FT MSL............South 30 to 40 mph. 
* Chance of Precip................0 percent. 
* CWR (>= 0.10 IN)................0 percent. 
* Chance of Thunder...............1 percent. 
* Mixing Height for Phoenix.......13200 ft AGL. 
* Transport Wind for Phoenix......Southwest 23 knots. 
* Dispersion for Phoenix..........Excellent. 

.TONIGHT...
* Sky/weather.....................Mostly clear. 
* Min Temperature.................69-79. 
*    24 hr trend..................4 degrees cooler. 
* Max Humidity....................37-54 pct. 
*    24 hr trend..................6 pct wetter. 
* Winds - 20 foot...Slope/Valley..South 5 to 15 mph. 
* Winds...10000 FT MSL............South 30 to 40 mph. 
* Chance of Precip................0 percent. 
* CWR (>= 0.10 IN)................0 percent. 
* Chance of Thunder...............1 percent. 

.THURSDAY...
* Sky/weather.....................Sunny. 
* Max Temperature.................92-101. 
*    24 hr trend..................4 degrees cooler. 
* Min Humidity....................14-26 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...............3 percent. 
* Mixing Height for Phoenix.......10400 ft AGL. 
* Transport Wind for Phoenix......Southwest 17 knots. 
* Dispersion for Phoenix..........Excellent. 


.EXTENDED...
.FRIDAY...Mostly clear. Lows 67-77. Highs 91-99. South winds 5 to
15 mph. 
.SATURDAY...Clear. Lows 67-77. Highs 92-98. South winds 5 to
10 mph. Minimum relative humidity may be lower than 15 percent. 
.SUNDAY...Clear. Lows 67-77. Highs 93-99. South winds 5 to
10 mph. 
.MONDAY...Clear. Lows 68-78. Highs 94-100. 
.TUESDAY...Mostly clear. Lows 70-80. Highs 95-101. 

$$

AZZ131-CAZ231-102030-
Yuma/Martinez Lake and Vicinity/Lower Colorado River Valley AZ-
Lower Colorado River Valley CA-
121 AM MST Wed Sep 10 2025 /121 AM PDT Wed Sep 10 2025/

.TODAY...
* Sky/weather.....................Sunny. 
* Max Temperature.................96-101. 
*    24 hr trend..................3 degrees cooler. 
* Min Humidity....................12-16 pct. 
*    24 hr trend..................3 pct wetter. 
* Winds - 20 foot...Slope/Valley..Southwest 5 to 15 mph. 
* 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. 
* Mixing Height for Yuma..........6400 ft AGL. 
* Transport Wind for Yuma.........Southwest 7 knots. 
* Dispersion for Yuma.............Good. 

.TONIGHT...
* Sky/weather.....................Mostly clear. 
* Min Temperature.................66-71. 
*    24 hr trend..................4 degrees cooler. 
* Max Humidity....................42-53 pct. 
*    24 hr trend..................9 pct wetter. 
* Winds - 20 foot...Slope/Valley..West 5 to 15 mph. 
* 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. 

.THURSDAY...
* Sky/weather.....................Sunny. 
* Max Temperature.................93-98. 
*    24 hr trend..................3 degrees cooler. 
* Min Humidity....................12-17 pct. 
*    24 hr trend..................Little change. 
* Winds - 20 foot...Slope/Valley..West 5 to 15 mph. 
* 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. 
* Mixing Height for Yuma..........5600 ft AGL. 
* Transport Wind for Yuma.........West 5 knots. 
* Dispersion for Yuma.............Fair. 


.EXTENDED...
.FRIDAY...Clear. Lows 65-70. Highs 92-97. West winds 5 to 10 mph.
.SATURDAY...Clear. Lows 66-72. Highs 93-98. South winds 5 to
10 mph. 
.SUNDAY...Clear. Lows 66-72. Highs 94-99. South winds 5 to
15 mph. 
.MONDAY...Clear. Lows 67-75. Highs 95-100. 
.TUESDAY...Mostly clear. Lows 69-77. Highs 95-100. 

$$

AZZ133-102030-
Southern Gila County/Tonto National Forest Foothills-
Southern Tonto NF/West San Carlos BIA/South Portion Ft Apache BIA/
CAZ-
121 AM MST Wed Sep 10 2025

.TODAY...
* Sky/weather.....................Mostly sunny. Slight chance of 
  showers and thunderstorms in the afternoon. 
* Max Temperature.................87-102. 
*    24 hr trend..................Little change. 
* Min Humidity....................16-25 pct. 
*    24 hr trend..................Little RH change. 
* Winds - 20 foot...Slope/Valley..South 10 to 20 mph. 
* Winds...10000 FT MSL............South 25 to 35 mph. 
* Chance of Precip................0 percent in the morning becoming 
  20 percent in the afternoon. 
* CWR (>= 0.10 IN)................0 percent. 
* Chance of Thunder...............17 percent. 

.TONIGHT...
* Sky/weather.....................Mostly clear. Slight chance of 
  showers and thunderstorms in the evening. 
* Min Temperature.................61-76. 
*    24 hr trend..................Little change. 
* Max Humidity....................47-69 pct. 
*    24 hr trend..................8 pct wetter. 
* Winds - 20 foot...Slope/Valley..South 5 to 15 mph. 
* Winds...10000 FT MSL............Southwest 25 to 35 mph. 
* Chance of Precip................20 percent in the evening 
  becoming 10 percent after midnight. 
* CWR (>= 0.10 IN)................0 percent. 
* Chance of Thunder...............14 percent. 

.THURSDAY...
* Sky/weather.....................Mostly sunny. Slight chance of 
  showers and thunderstorms in the afternoon. 
* Max Temperature.................84-99. 
*    24 hr trend..................4 degrees cooler. 
* Min Humidity....................24-33 pct. 
*    24 hr trend..................8 pct wetter. 
* Winds - 20 foot...Slope/Valley..South 5 to 15 mph. 
* Winds...10000 FT MSL............South 20 to 30 mph. 
* Chance of Precip................0 percent in the morning becoming 
  20 percent in the afternoon. 
* CWR (>= 0.10 IN)................10 percent. 
* Chance of Thunder...............18 percent. 


.EXTENDED...
.FRIDAY...Mostly clear with slight chance of showers and
thunderstorms. Lows 57-74. Highs 81-96. South winds 10 to 20 mph.
.SATURDAY...Clear. Lows 55-70. Highs 80-94. South winds 5 to
15 mph. 
.SUNDAY...Clear. Lows 55-72. Highs 82-97. Southeast winds 5 to
15 mph. 
.MONDAY...Mostly clear with slight chance of showers and
thunderstorms. Lows 57-75. Highs 83-98. 
.TUESDAY...Mostly clear with slight chance of showers and
thunderstorms. Lows 59-75. Highs 83-98. 

$$

CAZ232-102030-
Imperial County And Eastern Riverside County-
121 AM PDT Wed Sep 10 2025

.TODAY...
* Sky/weather.....................Sunny. 
* Max Temperature.................89-99. 
*    24 hr trend..................4 degrees cooler. 
* Min Humidity....................10-19 pct. 
*    24 hr trend..................5 pct wetter. 
* Winds - 20 foot...Slope/Valley..West 5 to 15 mph. 
* 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. 

.TONIGHT...
* Sky/weather.....................Clear. 
* Min Temperature.................65-71. 
*    24 hr trend..................3 degrees cooler. 
* Max Humidity....................38-56 pct. 
*    24 hr trend..................4 pct wetter. 
* Winds - 20 foot...Slope/Valley..West 5 to 15 mph. 
* 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. 

.THURSDAY...
* Sky/weather.....................Sunny. 
* Max Temperature.................87-96. 
*    24 hr trend..................3 degrees cooler. 
* Min Humidity....................11-20 pct. 
*    24 hr trend..................Little RH change. 
* Winds - 20 foot...Slope/Valley..Northwest 5 to 10 mph in the 
  morning becoming southwest 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...
.FRIDAY...Clear. Lows 65-72. Highs 87-96. West winds 5 to 15 mph.
.SATURDAY...Clear. Lows 67-73. Highs 89-98. Southwest winds 5 to
15 mph. 
.SUNDAY...Clear. Lows 67-73. Highs 90-98. South winds 5 to
10 mph. 
.MONDAY...Clear. Lows 68-74. Highs 90-98. 
.TUESDAY...Mostly clear. Lows 69-76. Highs 91-99. 

$$

CAZ230-102030-
Joshua Tree National Park-
121 AM PDT Wed Sep 10 2025

.TODAY...
* Sky/weather.....................Sunny. 
* Max Temperature.................76-92. 
*    24 hr trend..................5 degrees cooler. 
* Min Humidity....................11-21 pct. 
*    24 hr trend..................5 pct wetter. 
* Winds - 20 foot...Slope/Valley..Southwest 5 to 15 mph. 
* 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. 

.TONIGHT...
* Sky/weather.....................Clear. 
* Min Temperature.................54-66. 
*    24 hr trend..................3 degrees cooler. 
* Max Humidity....................39-50 pct. 
*    24 hr trend..................5 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. 

.THURSDAY...
* Sky/weather.....................Sunny. 
* Max Temperature.................76-89. 
*    24 hr trend..................Little change. 
* Min Humidity....................15-24 pct. 
*    24 hr trend..................3 pct wetter. 
* Winds - 20 foot...Slope/Valley..Northwest 5 to 10 mph in the 
  morning becoming south in the afternoon. 
* 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...
.FRIDAY...Clear. Lows 55-68. Highs 76-89. West winds 5 to 15 mph.
.SATURDAY...Clear. Lows 59-70. Highs 79-91. Southwest winds 5 to
10 mph. 
.SUNDAY...Clear. Lows 59-70. Highs 79-92. Southwest winds 5 to
15 mph. 
.MONDAY...Clear. Lows 59-69. Highs 79-92. 
.TUESDAY...Clear. Lows 60-71. Highs 80-93. 

$$

.8 TO 10 DAY OUTLOOK...Wednesday September 17th through Friday 
September 19th: Near normal temperatures and near median 
precipitation.