Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Phoenix, AZ
Issued by NWS Phoenix, AZ
690 FNUS55 KPSR 201036 FWFPSR Fire Weather Planning Forecast for Southwest and South-Central Arizona and Southeast California National Weather Service Phoenix AZ 336 AM MST Fri Sep 20 2024 .DISCUSSION... A drier and cooler airmass encompassing the region will result in below normal temperatures through Saturday. Stronger southerly to southwesterly will develop this afternoon, with gusts to 20-25 mph expected today, focused across higher terrain areas of the western districts and southcentral AZ. MinRH`s will hover around 15-30% region-wide over the next couple of days, with some slight drying first across the western districts starting Saturday and spreading eastward on Sunday, with MinRH`s more in the 10-20% range by the beginning of next week. Overnight RH recoveries will be fair to good across the region over the next couple of mornings, before degrading to generally fair to poor in spots going into next week. Warming temperatures to above normal are expected to develop late this weekend and persist through most of next week. ...Thunderstorms imply gusty winds... Note...Additional Fire Weather Forecast information can be found in the Area Forecast Discussion. See product PHXAFDPSR. AZZ132-202245- 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- 336 AM MST Fri Sep 20 2024 .TODAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................86-94. * 24 hr trend..................Little change. * Min Humidity....................20-28 pct. * 24 hr trend..................3 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. * CWR (>= 0.10 IN)................0 percent. * LAL.............................1. * Haines High Level Index.........4 low potential for large plume dominated fire growth. * Mixing Height for Phoenix.......11700 ft AGL. * Transport Wind for Phoenix......South 14 knots. * Dispersion for Phoenix..........Excellent. .TONIGHT... * Sky/weather.....................Mostly clear. Slight chance of showers and thunderstorms after midnight. * Min Temperature.................61-71. * 24 hr trend..................Little change. * Max Humidity....................54-66 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 in the evening becoming west 10 to 20 mph after midnight. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * LAL.............................1 in the evening becoming 2 after midnight. .SATURDAY... * Sky/weather.....................Sunny. * Max Temperature.................85-93. * 24 hr trend..................Little change. * Min Humidity....................19-25 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..South 5 to 10 mph in the morning becoming west in the afternoon. * Winds...10000 FT MSL............Northwest 15 to 25 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * LAL.............................1. * Haines High Level Index.........3 very low potential for large plume dominated fire growth. * Mixing Height for Phoenix.......7800 ft AGL. * Transport Wind for Phoenix......Northwest 6 knots. * Dispersion for Phoenix..........Good. .EXTENDED... .SUNDAY...Clear. Lows 64-74. Highs 93-99. North winds 5 to 10 mph. .MONDAY...Clear. Lows 68-78. Highs 96-103. Northwest winds 5 to 10 mph. Minimum relative humidity may be lower than 15 percent. .TUESDAY...Mostly clear. Lows 69-79. Highs 97-104. West winds 5 to 10 mph. Minimum relative humidity may be lower than 15 percent. .WEDNESDAY...Mostly clear. Lows 69-79. Highs 97-103. .THURSDAY...Mostly clear. Lows 71-81. Highs 97-104. $$ AZZ131-CAZ231-202245- Yuma/Martinez Lake and Vicinity/Lower Colorado River Valley AZ- Lower Colorado River Valley CA- 336 AM MST Fri Sep 20 2024 /336 AM PDT Fri Sep 20 2024/ .TODAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................86-91. * 24 hr trend..................3 degrees cooler. * Min Humidity....................21-29 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. * CWR (>= 0.10 IN)................0 percent. * LAL.............................1. * Haines High Level Index.........4 low potential for large plume dominated fire growth. * Mixing Height for Yuma..........8100 ft AGL. * Transport Wind for Yuma.........West 9 knots. * Dispersion for Yuma.............Very good. .TONIGHT... * Sky/weather.....................Mostly clear. Slight chance of showers and thunderstorms in the evening. * Min Temperature.................62-67. * 24 hr trend..................Little change. * Max Humidity....................60-79 pct. * 24 hr trend..................4 pct wetter. * Winds - 20 foot...Slope/Valley..Southwest 5 to 15 mph. * Winds...10000 FT MSL............South 5 to 15 mph in the evening becoming northwest 10 to 20 mph after midnight. * Chance of Precip................10 percent in the evening becoming 0 percent after midnight. * CWR (>= 0.10 IN)................0 percent. * LAL.............................2 in the evening becoming 1 after midnight. .SATURDAY... * Sky/weather.....................Sunny. * Max Temperature.................90-96. * 24 hr trend..................4 degrees warmer. * Min Humidity....................20-24 pct. * 24 hr trend..................3 pct drier. * Winds - 20 foot...Slope/Valley..Southwest 5 to 15 mph. * Winds...10000 FT MSL............North 20 to 30 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * LAL.............................1. * Haines High Level Index.........3 very low potential for large plume dominated fire growth. * Mixing Height for Yuma..........7200 ft AGL. * Transport Wind for Yuma.........Northwest 5 knots. * Dispersion for Yuma.............Fair. .EXTENDED... .SUNDAY...Clear. Lows 65-74. Highs 96-101. Northwest winds 5 to 10 mph. .MONDAY...Clear. Lows 68-74. Highs 100-105. Northwest winds 5 to 10 mph. Minimum relative humidity may be lower than 15 percent. .TUESDAY...Mostly clear. Lows 69-74. Highs 100-105. West winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .WEDNESDAY...Mostly clear. Lows 69-75. Highs 99-104. .THURSDAY...Mostly clear. Lows 70-75. Highs 99-104. $$ AZZ133-202245- Southern Gila County/Tonto National Forest Foothills- Southern Tonto NF/West San Carlos BIA/South Portion Ft Apache BIA/ CAZ- 336 AM MST Fri Sep 20 2024 .TODAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................78-92. * 24 hr trend..................Little change. * Min Humidity....................19-28 pct. * 24 hr trend..................3 pct wetter. * Winds - 20 foot...Slope/Valley..Southeast 5 to 10 mph in the morning becoming south 5 to 15 mph in the afternoon. * Winds...10000 FT MSL............South 20 to 30 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * LAL.............................1. * Haines High Level Index.........4 low potential for large plume dominated fire growth. .TONIGHT... * Sky/weather.....................Mostly clear. Slight chance of showers and thunderstorms after midnight. * Min Temperature.................50-65. * 24 hr trend..................3 degrees cooler. * Max Humidity....................52-73 pct. * 24 hr trend..................6 pct wetter. * Winds - 20 foot...Slope/Valley..Southwest 5 to 15 mph. * Winds...10000 FT MSL............South 20 to 30 mph. * Chance of Precip................10 percent in the evening becoming 20 percent after midnight. * CWR (>= 0.10 IN)................0 percent. * LAL.............................1 in the evening becoming 2 after midnight. .SATURDAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................70-85. * 24 hr trend..................7 degrees cooler. * Min Humidity....................22-32 pct. * 24 hr trend..................4 pct wetter. * Winds - 20 foot...Slope/Valley..Southwest 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. * Haines High Level Index.........3 very low potential for large plume dominated fire growth. .EXTENDED... .SUNDAY...Clear. Lows 48-70. Highs 79-95. North winds 5 to 10 mph. .MONDAY...Mostly clear. Lows 52-71. Highs 81-98. East winds 5 to 15 mph. .TUESDAY...Mostly clear. Lows 54-71. Highs 82-98. Northeast winds 5 to 15 mph. .WEDNESDAY...Mostly clear. Lows 54-74. Highs 82-98. .THURSDAY...Mostly clear. Lows 57-74. Highs 82-98. $$ CAZ232-202245- Imperial County And Eastern Riverside County- 336 AM PDT Fri Sep 20 2024 .TODAY... * Sky/weather.....................Mostly sunny. * Max Temperature.................81-90. * 24 hr trend..................3 degrees cooler. * Min Humidity....................21-31 pct. * 24 hr trend..................Little RH change. * Winds - 20 foot...Slope/Valley..West 5 to 15 mph. * Winds...10000 FT MSL............South 10 to 20 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * LAL.............................1. * Haines High Level Index.........4 low potential for large plume dominated fire growth. .TONIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................63-68. * 24 hr trend..................Little change. * Max Humidity....................48-71 pct. * 24 hr trend..................3 pct wetter. * Winds - 20 foot...Slope/Valley..West 5 to 15 mph. * Winds...10000 FT MSL............North 15 to 25 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * LAL.............................1. .SATURDAY... * Sky/weather.....................Sunny. * Max Temperature.................87-97. * 24 hr trend..................6 degrees warmer. * Min Humidity....................18-25 pct. * 24 hr trend..................4 pct drier. * Winds - 20 foot...Slope/Valley..West 5 to 10 mph in the morning becoming south in the afternoon. * Winds...10000 FT MSL............North 20 to 30 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * LAL.............................1. * Haines High Level Index.........3 very low potential for large plume dominated fire growth. .EXTENDED... .SUNDAY...Clear. Lows 68-78. Highs 92-101. West winds 5 to 10 mph. .MONDAY...Clear. Lows 71-78. Highs 96-105. Northwest winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .TUESDAY...Mostly clear. Lows 71-78. Highs 96-105. Northwest winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .WEDNESDAY...Clear. Lows 71-78. Highs 95-103. .THURSDAY...Mostly clear. Lows 72-78. Highs 94-104. $$ CAZ230-202245- Joshua Tree National Park- 336 AM PDT Fri Sep 20 2024 .TODAY... * Sky/weather.....................Partly sunny. Chance of showers and thunderstorms in the afternoon. * Max Temperature.................68-83. * 24 hr trend..................3 degrees cooler. * Min Humidity....................26-42 pct. * 24 hr trend..................9 pct wetter. * Winds - 20 foot...Slope/Valley..Northwest 5 to 10 mph in the morning becoming west in the afternoon. * Winds...10000 FT MSL............Southeast 5 to 15 mph in the morning becoming northeast in the afternoon. * Chance of Precip................10 percent in the morning becoming 30 percent in the afternoon. * CWR (>= 0.10 IN)................20 percent. * LAL.............................1 in the morning becoming 3 in the afternoon. * Haines High Level Index.........3 very low potential for large plume dominated fire growth. .TONIGHT... * Sky/weather.....................Mostly clear. * Min Temperature.................54-64. * 24 hr trend..................Little change. * Max Humidity....................46-57 pct. * 24 hr trend..................7 pct drier. * Winds - 20 foot...Slope/Valley..Northwest 5 to 15 mph. * Winds...10000 FT MSL............North 15 to 25 mph. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * LAL.............................1. .SATURDAY... * Sky/weather.....................Sunny. * Max Temperature.................78-90. * 24 hr trend..................8 degrees warmer. * Min Humidity....................17-26 pct. * 24 hr trend..................12 pct drier. * Winds - 20 foot...Slope/Valley..Northwest 5 to 15 mph. * Winds...10000 FT MSL............North 20 to 30 mph in the morning becoming northwest 10 to 20 mph in the afternoon. * Chance of Precip................0 percent. * CWR (>= 0.10 IN)................0 percent. * LAL.............................1. * Haines High Level Index.........2 very low potential for large plume dominated fire growth. .EXTENDED... .SUNDAY...Clear. Lows 60-71. Highs 82-95. Southwest winds 5 to 10 mph. .MONDAY...Mostly clear. Lows 63-73. Highs 84-98. Northwest winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .TUESDAY...Mostly clear. Lows 64-73. Highs 84-98. Northwest winds 5 to 15 mph. Minimum relative humidity may be lower than 15 percent. .WEDNESDAY...Mostly clear. Lows 64-72. Highs 83-97. .THURSDAY...Mostly clear. Lows 63-72. Highs 83-96. $$ .8 TO 10 DAY OUTLOOK...Friday September 27th through Sunday September 29th: Above normal temperatures and below median precipitation.