397 FNUS55 KPSR 031023 FWFPSR FIRE WEATHER PLANNING FORECAST FOR SOUTHWEST AND SOUTH-CENTRAL ARIZONA AND SOUTHEAST CALIFORNIA NATIONAL WEATHER SERVICE PHOENIX AZ 323 AM MST THU OCT 3 2013 ...FIRE WEATHER WATCH IN EFFECT FROM 9 AM MST /9 AM PDT/ TO 7 PM MST /7 PM PDT/ FRIDAY DUE TO STRONG WINDS...LOW RELATIVE HUMIDITY AND HIGH FIRE DANGER... ...FIRE WEATHER WATCH IN EFFECT FROM 9 AM TO 7 PM PDT FRIDAY DUE TO STRONG WINDS...LOW RELATIVE HUMIDITY AND HIGH FIRE DANGER... .DISCUSSION... A LOW PRESSURE SYSTEM DROPPING OUT OF THE GREAT BASIN WILL BRING A SLIGHT COOLING AND MOISTENING TREND ALONG WITH AN INCREASE IN WIND. GUSTS UP TO 20 MPH ARE EXPECTED THIS AFTERNOON...PARTICULARLY ACROSS THE HIGHER ELEVATIONS OF THE TONTO NATIONAL FOREST. HOWEVER...WINDS WILL INCREASE SUBSTANTIALLY ON FRIDAY ACROSS SOUTHEAST CALIFORNIA AND HUMIDITIES WILL DROP INTO THE SINGLE DIGITS. CRITICAL THRESHOLDS MAY BE MET FRIDAY AFTERNOON ACROSS SOUTHEAST CALIFORNIA AND THE LOWER COLORADO RIVER VALLEY. ACROSS ARIZONA...WINDS WILL BE SIGNIFICANTLY LIGHTER AND THRESHOLDS SHOULD NOT BE REALIZED. NOTE...ADDITIONAL FIRE WEATHER FORECAST INFORMATION CAN BE FOUND IN THE AREA FORECAST DISCUSSION. SEE PRODUCT PHXAFDPSR. AZZ132-032230- 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- 323 AM MST THU OCT 3 2013 .TODAY... * SKY/WEATHER.....................MOSTLY SUNNY. * MAX TEMPERATURE.................85-94. * 24 HR TREND..................LITTLE CHANGE. * MIN HUMIDITY....................15-21 PCT. * 24 HR TREND..................LITTLE RH CHANGE. * WINDS - 20 FEET...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH. * WINDS...10000 FT MSL............SOUTHWEST 20 TO 30 MPH. * CHANCE OF PRECIP................0 PERCENT. * LAL.............................1. * HAINES HIGH LEVEL INDEX.........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. * MIXING HEIGHT FOR PHOENIX.......8500 FT AGL. * TRANSPORT WIND FOR PHOENIX......SOUTHWEST 13 KNOTS. * DISPERSION FOR PHOENIX..........EXCELLENT. .TONIGHT... * SKY/WEATHER.....................MOSTLY CLEAR. * MIN TEMPERATURE.................60-70. * 24 HR TREND..................LITTLE CHANGE. * MAX HUMIDITY....................28-62 PCT. * 24 HR TREND..................16 PCT DRIER. * WINDS - 20 FEET...SLOPE/VALLEY..WEST 5 TO 15 MPH. * WINDS...10000 FT MSL............WEST 20 TO 30 MPH. * CHANCE OF PRECIP................0 PERCENT. * LAL.............................1. .FRIDAY... * SKY/WEATHER.....................MOSTLY SUNNY. * MAX TEMPERATURE.................81-90. * 24 HR TREND..................4 DEGREES COOLER. * MIN HUMIDITY....................8-15 PCT. * 24 HR TREND..................7 PCT DRIER. * WINDS - 20 FEET...SLOPE/VALLEY..NORTHWEST 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 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. * MIXING HEIGHT FOR PHOENIX.......9000 FT AGL. * TRANSPORT WIND FOR PHOENIX......WEST 5 KNOTS. * DISPERSION FOR PHOENIX..........GOOD. .EXTENDED... .SATURDAY...MOSTLY CLEAR. LOWS 52-62. HIGHS 81-90. NORTH WINDS 10 TO 20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT. .SUNDAY...MOSTLY CLEAR. LOWS 52-63. HIGHS 84-93. NORTHEAST WINDS 5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT. .MONDAY...MOSTLY CLEAR. LOWS 55-65. HIGHS 86-95. NORTHEAST WINDS 5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT. .TUESDAY...MOSTLY CLEAR. LOWS 55-65. HIGHS 84-93. .WEDNESDAY...MOSTLY CLEAR. LOWS 53-63. HIGHS 78-87. $$ AZZ133-032230- SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS- SOUTHERN TONTO NF/WEST SAN CARLOS BIA/SOUTH PORTION FT APACHE BIA/ CAZ- 323 AM MST THU OCT 3 2013 .TODAY... * SKY/WEATHER.....................MOSTLY SUNNY. * MAX TEMPERATURE.................74-88. * 24 HR TREND..................LITTLE CHANGE. * MIN HUMIDITY....................17-25 PCT. * 24 HR TREND..................LITTLE CHANGE. * WINDS - 20 FEET...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH. * WINDS...10000 FT MSL............SOUTHWEST 25 TO 35 MPH. * CHANCE OF PRECIP................0 PERCENT. * LAL.............................1. * HAINES HIGH LEVEL INDEX.........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .TONIGHT... * SKY/WEATHER.....................MOSTLY CLEAR. * MIN TEMPERATURE.................46-60. * 24 HR TREND..................LITTLE CHANGE. * MAX HUMIDITY....................46-68 PCT. * 24 HR TREND..................6 PCT DRIER. * WINDS - 20 FEET...SLOPE/VALLEY..WEST 5 TO 15 MPH. * WINDS...10000 FT MSL............SOUTHWEST 25 TO 35 MPH. * CHANCE OF PRECIP................0 PERCENT. * LAL.............................1. .FRIDAY... * SKY/WEATHER.....................MOSTLY SUNNY. * MAX TEMPERATURE.................71-86. * 24 HR TREND..................3 DEGREES COOLER. * MIN HUMIDITY....................13-19 PCT. * 24 HR TREND..................4 PCT DRIER. * WINDS - 20 FEET...SLOPE/VALLEY..NORTHWEST 5 TO 15 MPH. * WINDS...10000 FT MSL............WEST 20 TO 30 MPH IN THE MORNING...BECOMING 5 TO 15 MPH IN THE AFTERNOON. * CHANCE OF PRECIP................0 PERCENT. * LAL.............................1. * HAINES HIGH LEVEL INDEX.........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .EXTENDED... .SATURDAY...MOSTLY CLEAR. LOWS 38-55. HIGHS 68-83. NORTHEAST WINDS 10 TO 20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT. .SUNDAY...MOSTLY CLEAR. LOWS 38-58. HIGHS 72-87. EAST WINDS 5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT. .MONDAY...MOSTLY CLEAR. LOWS 41-59. HIGHS 75-89. SOUTHEAST WINDS 5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT. .TUESDAY...MOSTLY CLEAR. LOWS 45-59. HIGHS 74-88. .WEDNESDAY...MOSTLY CLEAR. LOWS 46-59. HIGHS 68-82. $$ AZZ131-CAZ231-032230- YUMA/MARTINEZ LAKE AND VICINITY/LOWER COLORADO RIVER VALLEY AZ- LOWER COLORADO RIVER VALLEY CA- 323 AM MST THU OCT 3 2013 /323 AM PDT THU OCT 3 2013/ ...FIRE WEATHER WATCH IN EFFECT FROM 9 AM MST /9 AM PDT/ TO 7 PM MST /7 PM PDT/ FRIDAY... .TODAY... * SKY/WEATHER.....................MOSTLY SUNNY. * MAX TEMPERATURE.................89-94. * 24 HR TREND..................LITTLE CHANGE. * MIN HUMIDITY....................14-19 PCT. * 24 HR TREND..................5 PCT DRIER. * WINDS - 20 FEET...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH. * WINDS...10000 FT MSL............WEST 20 TO 30 MPH. * CHANCE OF PRECIP................0 PERCENT. * CWR (>= 0.10 IN)................0 PERCENT. * LAL.............................1. * HAINES HIGH LEVEL INDEX.........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. * MIXING HEIGHT FOR YUMA..........6500 FT AGL. * TRANSPORT WIND FOR YUMA.........SOUTHWEST 9 KNOTS. * DISPERSION FOR YUMA.............GOOD. .TONIGHT... * SKY/WEATHER.....................MOSTLY CLEAR. * MIN TEMPERATURE.................62-68. * 24 HR TREND..................LITTLE CHANGE. * MAX HUMIDITY....................25-44 PCT. * 24 HR TREND..................27 PCT DRIER. * WINDS - 20 FEET...SLOPE/VALLEY..NORTHWEST 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. .FRIDAY... * SKY/WEATHER.....................SUNNY. PATCHY BLOWING DUST. * MAX TEMPERATURE.................82-87. * 24 HR TREND..................7 DEGREES COOLER. * MIN HUMIDITY....................7-12 PCT. * 24 HR TREND..................6 PCT DRIER. * WINDS - 20 FEET...SLOPE/VALLEY..NORTH 15 TO 25 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.........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. * MIXING HEIGHT FOR YUMA..........8500 FT AGL. * TRANSPORT WIND FOR YUMA.........NORTH 12 KNOTS. * DISPERSION FOR YUMA.............EXCELLENT. .EXTENDED... .SATURDAY...MOSTLY CLEAR. LOWS 53-62. HIGHS 84-90. NORTH WINDS 10 TO 20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT. .SUNDAY...MOSTLY CLEAR. LOWS 53-63. HIGHS 89-94. NORTH WINDS 5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT. .MONDAY...MOSTLY CLEAR. LOWS 55-64. HIGHS 91-95. NORTHWEST WINDS 5 TO 10 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT. .TUESDAY...MOSTLY CLEAR. LOWS 55-64. HIGHS 88-93. .WEDNESDAY...MOSTLY CLEAR. LOWS 53-62. HIGHS 82-87. $$ CAZ230-032230- JOSHUA TREE NATIONAL PARK- 323 AM PDT THU OCT 3 2013 ...FIRE WEATHER WATCH IN EFFECT FROM 9 AM TO 7 PM PDT FRIDAY... .TODAY... * SKY/WEATHER.....................MOSTLY SUNNY. * MAX TEMPERATURE.................73-89. * 24 HR TREND..................LITTLE CHANGE. * MIN HUMIDITY....................12-21 PCT. * 24 HR TREND..................LITTLE CHANGE. * WINDS - 20 FEET...SLOPE/VALLEY..NORTHWEST 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. * HAINES HIGH LEVEL INDEX.........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .TONIGHT... * SKY/WEATHER.....................MOSTLY CLEAR. * MIN TEMPERATURE.................52-64. * 24 HR TREND..................3 DEGREES COOLER. * MAX HUMIDITY....................18-26 PCT. * 24 HR TREND..................18 PCT DRIER. * WINDS - 20 FEET...SLOPE/VALLEY..NORTHWEST 10 TO 20 MPH. * WINDS...10000 FT MSL............NORTHWEST 10 TO 20 MPH. * CHANCE OF PRECIP................0 PERCENT. * CWR (>= 0.10 IN)................0 PERCENT. * LAL.............................1. .FRIDAY... * SKY/WEATHER.....................SUNNY. PATCHY BLOWING DUST. * MAX TEMPERATURE.................65-79. * 24 HR TREND..................9 DEGREES COOLER. * MIN HUMIDITY....................8-13 PCT. * 24 HR TREND..................6 PCT DRIER. * WINDS - 20 FEET...SLOPE/VALLEY..NORTH 15 TO 25 MPH. * WINDS...10000 FT MSL............NORTH 10 TO 20 MPH. * CHANCE OF PRECIP................0 PERCENT. * CWR (>= 0.10 IN)................0 PERCENT. * LAL.............................1. * HAINES HIGH LEVEL INDEX.........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .EXTENDED... .SATURDAY...MOSTLY CLEAR. LOWS 47-60. HIGHS 67-82. NORTH WINDS 15 TO 25 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT. .SUNDAY...MOSTLY CLEAR. LOWS 50-61. HIGHS 73-87. NORTH WINDS 10 TO 20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT. .MONDAY...MOSTLY CLEAR. LOWS 52-62. HIGHS 75-90. SOUTH WINDS 5 TO 10 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT. .TUESDAY...MOSTLY CLEAR. LOWS 51-62. HIGHS 72-88. .WEDNESDAY...MOSTLY CLEAR. LOWS 47-60. HIGHS 66-81. $$ CAZ232-032230- IMPERIAL COUNTY AND EASTERN RIVERSIDE COUNTY- 323 AM PDT THU OCT 3 2013 ...FIRE WEATHER WATCH IN EFFECT FROM 9 AM TO 7 PM PDT FRIDAY... .TODAY... * SKY/WEATHER.....................MOSTLY SUNNY. * MAX TEMPERATURE.................84-94. * 24 HR TREND..................LITTLE CHANGE. * MIN HUMIDITY....................13-20 PCT. * 24 HR TREND..................LITTLE CHANGE. * WINDS - 20 FEET...SLOPE/VALLEY..WEST 5 TO 15 MPH. * WINDS...10000 FT MSL............WEST 20 TO 30 MPH. * CHANCE OF PRECIP................0 PERCENT. * CWR (>= 0.10 IN)................0 PERCENT. * LAL.............................1. * HAINES HIGH LEVEL INDEX.........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .TONIGHT... * SKY/WEATHER.....................MOSTLY CLEAR. * MIN TEMPERATURE.................62-68. * 24 HR TREND..................LITTLE CHANGE. * MAX HUMIDITY....................19-38 PCT. * 24 HR TREND..................23 PCT DRIER. * WINDS - 20 FEET...SLOPE/VALLEY..NORTHWEST 10 TO 20 MPH. * WINDS...10000 FT MSL............WEST 10 TO 20 MPH. * CHANCE OF PRECIP................0 PERCENT. * CWR (>= 0.10 IN)................0 PERCENT. * LAL.............................1. .FRIDAY... * SKY/WEATHER.....................SUNNY. PATCHY BLOWING SAND AND BLOWING DUST. * MAX TEMPERATURE.................77-87. * 24 HR TREND..................7 DEGREES COOLER. * MIN HUMIDITY....................7-12 PCT. * 24 HR TREND..................7 PCT DRIER. * WINDS - 20 FEET...SLOPE/VALLEY..NORTH 15 TO 25 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.........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .EXTENDED... .SATURDAY...MOSTLY CLEAR. LOWS 57-64. HIGHS 80-90. NORTH WINDS 15 TO 25 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT. .SUNDAY...MOSTLY CLEAR. LOWS 57-66. HIGHS 85-94. NORTH WINDS 5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT. .MONDAY...MOSTLY CLEAR. LOWS 59-67. HIGHS 86-95. NORTHWEST WINDS 5 TO 10 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT. .TUESDAY...MOSTLY CLEAR. LOWS 59-67. HIGHS 84-93. .WEDNESDAY...MOSTLY CLEAR. LOWS 56-65. HIGHS 77-87. $$ .8 TO 10 DAY OUTLOOK...THURSDAY OCTOBER 10TH THROUGH SATURDAY OCTOBER 12TH...NEAR NORMAL TEMPERATURES AND BELOW MEDIAN PRECIPITATION.