734 
FNUS55 KPSR 070859
FWFPSR

Fire Weather Planning Forecast for Southwest and South-Central
Arizona and Southeast California
National Weather Service Phoenix AZ
159 AM MST Fri May 7 2021

.DISCUSSION...
Slightly above normal temperatures are forecast through Saturday 
with lower desert highs in the mid to upper 90s. Winds will become
breezy this afternoon with gusts to 25 mph in some locations,
particularly across southeast California and across the Arizona 
high terrain. Lighter winds are anticipated for Saturday. Minimum 
RH values will generally remain around 10% or less with maximum 
RHs around 20-30%, and 30-50% for portions of Imperial and Yuma 
Counties. 

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

AZZ132-072100-
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-
159 AM MST Fri May 7 2021

.TODAY...
* Sky/weather.....................Sunny. 
* Max Temperature.................90-97. 
*    24 hr trend..................4 degrees cooler. 
* Min Humidity....................8-13 pct. 
*    24 hr trend..................Little 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. 
* LAL.............................1. 
* Haines High Level Index.........5 moderate potential for large 
  plume dominated fire growth. 
* Mixing Height for Phoenix.......11000 ft AGL. 
* Transport Wind for Phoenix......Southwest 14 knots. 
* Dispersion for Phoenix..........Excellent. 

.TONIGHT...
* Sky/weather.....................Mostly clear. 
* Min Temperature.................60-70. 
*    24 hr trend..................Little change. 
* Max Humidity....................24-48 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. 
* LAL.............................1. 

.SATURDAY...
* Sky/weather.....................Sunny. 
* Max Temperature.................88-94. 
*    24 hr trend..................Little change. 
* Min Humidity....................9-14 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 10 to 20 mph. 
* Chance of Precip................0 percent. 
* LAL.............................1. 
* Haines High Level Index.........5 moderate potential for large 
  plume dominated fire growth. 
* Mixing Height for Phoenix.......10100 ft AGL. 
* Transport Wind for Phoenix......West 9 knots. 
* Dispersion for Phoenix..........Very good. 


.EXTENDED...
.SUNDAY...Clear. Lows 59-69. Highs 88-94. South winds 10 to
20 mph. Minimum relative humidity may be lower than 15 percent. 
.MONDAY...Clear. Lows 58-68. Highs 86-92. South winds 5 to
15 mph. Minimum relative humidity may be lower than 15 percent. 
.TUESDAY...Clear. Lows 58-68. Highs 89-94. South winds 5 to
15 mph. Minimum relative humidity may be lower than 15 percent. 
.WEDNESDAY...Clear. Lows 60-70. Highs 94-99. 
.THURSDAY...Mostly clear. Lows 63-73. Highs 95-101. 

$$

AZZ131-CAZ231-072100-
Yuma/Martinez Lake and Vicinity/Lower Colorado River Valley AZ-
Lower Colorado River Valley CA-
159 AM MST Fri May 7 2021 /159 AM PDT Fri May 7 2021/

.TODAY...
* Sky/weather.....................Sunny. 
* Max Temperature.................93-98. 
*    24 hr trend..................3 degrees cooler. 
* Min Humidity....................10-15 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. 
* LAL.............................1. 
* Haines High Level Index.........5 moderate potential for large 
  plume dominated fire growth. 
* Mixing Height for Yuma..........8600 ft AGL. 
* Transport Wind for Yuma.........Southwest 10 knots. 
* Dispersion for Yuma.............Very good. 

.TONIGHT...
* Sky/weather.....................Mostly clear. 
* Min Temperature.................62-66. 
*    24 hr trend..................Little change. 
* Max Humidity....................36-56 pct. 
*    24 hr trend..................Little change. 
* 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. 
* LAL.............................1. 

.SATURDAY...
* Sky/weather.....................Sunny. 
* Max Temperature.................92-96. 
*    24 hr trend..................Little change. 
* Min Humidity....................9-14 pct. 
*    24 hr trend..................Little RH change. 
* Winds - 20 foot...Slope/Valley..Southwest 5 to 15 mph. 
* Winds...10000 FT MSL............Northwest 10 to 20 mph. 
* Chance of Precip................0 percent. 
* CWR (>= 0.10 IN)................0 percent. 
* LAL.............................1. 
* Haines High Level Index.........5 moderate potential for large 
  plume dominated fire growth. 
* Mixing Height for Yuma..........7800 ft AGL. 
* Transport Wind for Yuma.........West 6 knots. 
* Dispersion for Yuma.............Good. 


.EXTENDED...
.SUNDAY...Clear. Lows 61-66. Highs 92-96. South winds 10 to
20 mph. Minimum relative humidity may be lower than 15 percent. 
.MONDAY...Clear. Lows 61-65. Highs 89-93. South winds 5 to
15 mph. Minimum relative humidity may be lower than 15 percent. 
.TUESDAY...Clear. Lows 61-67. Highs 92-96. South winds 5 to
15 mph. Minimum relative humidity may be lower than 15 percent. 
.WEDNESDAY...Clear. Lows 62-69. Highs 96-100. 
.THURSDAY...Mostly clear. Lows 64-70. Highs 98-102. 

$$

AZZ133-072100-
Southern Gila County/Tonto National Forest Foothills-
Southern Tonto NF/West San Carlos BIA/South Portion Ft Apache BIA/
CAZ-
159 AM MST Fri May 7 2021

.TODAY...
* Sky/weather.....................Sunny. 
* Max Temperature.................80-94. 
*    24 hr trend..................5 degrees cooler. 
* Min Humidity....................7-12 pct. 
*    24 hr trend..................Little RH change. 
* Winds - 20 foot...Slope/Valley..Southwest 5 to 15 mph. 
* Winds...10000 FT MSL............South 15 to 25 mph. 
* Chance of Precip................0 percent. 
* LAL.............................1. 
* Haines High Level Index.........5 moderate potential for large 
  plume dominated fire growth. 

.TONIGHT...
* Sky/weather.....................Mostly clear. 
* Min Temperature.................51-63. 
*    24 hr trend..................4 degrees cooler. 
* Max Humidity....................22-29 pct. 
*    24 hr trend..................5 pct drier. 
* Winds - 20 foot...Slope/Valley..Southwest 5 to 15 mph. 
* Winds...10000 FT MSL............Southwest 20 to 30 mph. 
* Chance of Precip................0 percent. 
* LAL.............................1. 

.SATURDAY...
* Sky/weather.....................Mostly sunny. 
* Max Temperature.................75-89. 
*    24 hr trend..................5 degrees cooler. 
* Min Humidity....................9-14 pct. 
*    24 hr trend..................Little RH change. 
* Winds - 20 foot...Slope/Valley..Southwest 5 to 15 mph. 
* Winds...10000 FT MSL............West 10 to 20 mph. 
* Chance of Precip................0 percent. 
* LAL.............................1. 
* Haines High Level Index.........4 low potential for large plume 
  dominated fire growth. 


.EXTENDED...
.SUNDAY...Clear. Lows 49-64. Highs 75-89. Southwest winds 10 to
20 mph. Minimum relative humidity may be lower than 15 percent. 
.MONDAY...Clear. Lows 47-62. Highs 74-89. Southwest winds 10 to
20 mph. Minimum relative humidity may be lower than 15 percent. 
.TUESDAY...Clear. Lows 47-64. Highs 76-90. Southwest winds 5 to
15 mph. Minimum relative humidity may be lower than 15 percent. 
.WEDNESDAY...Clear. Lows 48-66. Highs 80-95. 
.THURSDAY...Mostly clear. Lows 52-68. Highs 83-97. 

$$

CAZ232-072100-
Imperial County And Eastern Riverside County-
159 AM PDT Fri May 7 2021

.TODAY...
* Sky/weather.....................Sunny. 
* Max Temperature.................88-98. 
*    24 hr trend..................Little change. 
* Min Humidity....................10-15 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. 
* LAL.............................1. 
* Haines High Level Index.........5 moderate potential for large 
  plume dominated fire growth. 

.TONIGHT...
* Sky/weather.....................Mostly clear. 
* Min Temperature.................60-67. 
*    24 hr trend..................Little change. 
* Max Humidity....................27-56 pct. 
*    24 hr trend..................6 pct drier. 
* Winds - 20 foot...Slope/Valley..West 5 to 15 mph. 
* Winds...10000 FT MSL............West 10 to 20 mph. 
* Chance of Precip................0 percent. 
* CWR (>= 0.10 IN)................0 percent. 
* LAL.............................1. 

.SATURDAY...
* Sky/weather.....................Sunny. 
* Max Temperature.................88-97. 
*    24 hr trend..................Little change. 
* Min Humidity....................9-14 pct. 
*    24 hr trend..................Little RH change. 
* Winds - 20 foot...Slope/Valley..West 5 to 15 mph. 
* Winds...10000 FT MSL............Northwest 10 to 15 mph. 
* Chance of Precip................0 percent. 
* CWR (>= 0.10 IN)................0 percent. 
* LAL.............................1. 
* Haines High Level Index.........5 moderate potential for large 
  plume dominated fire growth. 


.EXTENDED...
.SUNDAY...Clear. Lows 59-69. Highs 87-96. Southwest winds 10 to
20 mph. Minimum relative humidity may be lower than 15 percent. 
.MONDAY...Clear. Lows 59-67. Highs 84-94. Southwest winds 5 to
15 mph. 
.TUESDAY...Clear. Lows 61-70. Highs 88-97. South winds 5 to
15 mph. Minimum relative humidity may be lower than 15 percent. 
.WEDNESDAY...Clear. Lows 63-71. Highs 91-100. 
.THURSDAY...Mostly clear. Lows 64-71. Highs 93-102. 

$$

CAZ230-072100-
Joshua Tree National Park-
159 AM PDT Fri May 7 2021

.TODAY...
* Sky/weather.....................Sunny. 
* Max Temperature.................77-93. 
*    24 hr trend..................3 degrees cooler. 
* Min Humidity....................11-20 pct. 
*    24 hr trend..................4 pct wetter. 
* Winds - 20 foot...Slope/Valley..Southwest 5 to 10 mph in the 
  morning becoming 10 to 20 mph in the afternoon. 
* Winds...10000 FT MSL............Southwest 15 to 25 mph. 
* Chance of Precip................0 percent. 
* CWR (>= 0.10 IN)................0 percent. 
* LAL.............................1. 
* Haines High Level Index.........5 moderate potential for large 
  plume dominated fire growth. 

.TONIGHT...
* Sky/weather.....................Clear. 
* Min Temperature.................51-63. 
*    24 hr trend..................3 degrees cooler. 
* Max Humidity....................25-38 pct. 
*    24 hr trend..................4 pct drier. 
* Winds - 20 foot...Slope/Valley..Northwest 5 to 15 mph. 
* Winds...10000 FT MSL............Light and variable in the evening 
  becoming northwest 10 to 20 mph after midnight. 
* Chance of Precip................0 percent. 
* CWR (>= 0.10 IN)................0 percent. 
* LAL.............................1. 

.SATURDAY...
* Sky/weather.....................Sunny. 
* Max Temperature.................79-92. 
*    24 hr trend..................Little change. 
* Min Humidity....................9-14 pct. 
*    24 hr trend..................4 pct drier. 
* Winds - 20 foot...Slope/Valley..Northwest 10 to 20 mph in the 
  morning becoming 5 to 10 mph in the afternoon. 
* Winds...10000 FT MSL............Northwest 10 to 15 mph. 
* Chance of Precip................0 percent. 
* CWR (>= 0.10 IN)................0 percent. 
* LAL.............................1. 
* Haines High Level Index.........5 moderate potential for large 
  plume dominated fire growth. 


.EXTENDED...
.SUNDAY...Clear. Lows 51-65. Highs 76-91. West winds 10 to
20 mph. Minimum relative humidity may be lower than 15 percent. 
.MONDAY...Clear. Lows 51-64. Highs 76-89. West winds 5 to 15 mph.
.TUESDAY...Clear. Lows 54-66. Highs 78-92. North winds 5 to
15 mph. Minimum relative humidity may be lower than 15 percent. 
.WEDNESDAY...Clear. Lows 56-67. Highs 81-96. 
.THURSDAY...Clear. Lows 56-68. Highs 82-97. 

$$

.8 TO 10 DAY OUTLOOK...Friday May 14th through Sunday May 16th:
Above normal temperatures and near median precipitation.