765
FNUS55 KPSR 052230
FWFPSR
FIRE WEATHER PLANNING FORECAST FOR SOUTHWEST AND SOUTH-CENTRAL
ARIZONA AND SOUTHEAST CALIFORNIA
NATIONAL WEATHER SERVICE PHOENIX AZ
330 PM MST MON MAY 5 2025
DISCUSSION
AN UNSEASONABLY COOL WEATHER SYSTEM WILL CONTINUE TO AFFECT THE
REGION THROUGH WEDNESDAY BRINGING PERIODS OF SCATTERED SHOWERS.
THE BEST RAIN CHANCE (UP TO 50% CHANCE) WILL COME TONIGHT THROUGH
TUESDAY MORNING, MAINLY ACROSS SOUTH-CENTRAL AZ. CHANCES FOR
THUNDERSTORMS WILL BE LOW, AROUND 10% OR LOWER. TEMPERATURES 10
TO 15 DEGREES BELOW NORMAL AND ELEVATED MOISTURE WILL RESULT IN
HIGHER THAN TYPICAL HUMIDITIES THROUGH TUESDAY BEFORE LOWERING TO
MIN RHS OF 25-35% BY WEDNESDAY. LIGHTER WINDS ARE EXPECTED OVER
THE NEXT FEW DAYS, BUT SOME PERIODIC BREEZINESS WILL BE POSSIBLE,
ESPECIALLY NEAR ANY SHOWER ACTIVITY.
..THUNDERSTORMS IMPLY GUSTY WINDS
NOTE...ADDITIONAL FIRE WEATHER FORECAST INFORMATION CAN BE FOUND
IN THE AREA FORECAST DISCUSSION. SEE PRODUCT PHXAFDPSR.
AZZ132-061030-
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-
330 PM MST MON MAY 5 2025
TONIGHT
* SKY/WEATHER.....................MOSTLY CLOUDY. SLIGHT CHANCE OF
THUNDERSTORMS IN THE EVENING. CHANCE OF SHOWERS .
* MIN TEMPERATURE.................55-65.
* 24 HR TREND..................3 DEGREES WARMER.
* MAX HUMIDITY....................63-87 PCT.
* 24 HR TREND..................4 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............NORTHWEST 15 TO 25 MPH.
* CHANCE OF PRECIP................40 PERCENT.
* CWR (>= 0.10 IN)................30 PERCENT WEST PORTION...40
PERCENT EAST PORTION.
TUESDAY
* SKY/WEATHER.....................PARTLY SUNNY. CHANCE OF SHOWERS
IN THE MORNING. SLIGHT CHANCE OF SHOWERS IN THE AFTERNOON.
* MAX TEMPERATURE.................70-81.
* 24 HR TREND..................5 DEGREES WARMER.
* MIN HUMIDITY....................30-53 PCT.
* 24 HR TREND..................LITTLE CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............NORTHWEST 15 TO 25 MPH.
* CHANCE OF PRECIP................20 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT WEST PORTION...20
PERCENT EAST PORTION.
* MIXING HEIGHT FOR PHOENIX.......4700 FT AGL.
* TRANSPORT WIND FOR PHOENIX......SOUTH 5 KNOTS.
* DISPERSION FOR PHOENIX..........MARGINAL.
TUESDAY NIGHT
* SKY/WEATHER.....................PARTLY CLOUDY. SLIGHT CHANCE OF
THUNDERSTORMS IN THE EVENING. CHANCE OF SHOWERS .
* MIN TEMPERATURE.................55-65.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................60-84 PCT.
* 24 HR TREND..................3 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............WEST 10 TO 20 MPH.
* CHANCE OF PRECIP................20 PERCENT.
* CWR (>= 0.10 IN)................10 PERCENT.
WEDNESDAY
* SKY/WEATHER.....................MOSTLY SUNNY. SLIGHT CHANCE OF
SHOWERS IN THE MORNING.
* MAX TEMPERATURE.................79-86.
* 24 HR TREND..................7 DEGREES WARMER.
* MIN HUMIDITY....................23-33 PCT.
* 24 HR TREND..................12 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 5 TO 10 MPH IN THE MORNING
BECOMING NORTHWEST IN THE AFTERNOON.
* WINDS...10000 FT MSL............WEST 10 TO 20 MPH.
* CHANCE OF PRECIP................10 PERCENT IN THE MORNING
BECOMING 0 PERCENT IN THE AFTERNOON.
* CWR (>= 0.10 IN)................0 PERCENT.
* MIXING HEIGHT FOR PHOENIX.......8400 FT AGL.
* TRANSPORT WIND FOR PHOENIX......WEST 6 KNOTS.
* DISPERSION FOR PHOENIX..........GOOD.
EXTENDED
THURSDAY
WARMER, CLEAR. LOWS 60-71. HIGHS 88-94. NORTH WINDS
5 TO 10 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 65-75. HIGHS 95-102. NORTHEAST WINDS
5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
SATURDAY
MOSTLY CLEAR. LOWS 69-79. HIGHS 97-104. EAST WINDS
10 TO 20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
SUNDAY
MOSTLY CLEAR. LOWS 67-77. HIGHS 96-103.
MONDAY
MOSTLY CLEAR. LOWS 61-73. HIGHS 91-98.
AZZ131-CAZ231-061030-
YUMA/MARTINEZ LAKE AND VICINITY/LOWER COLORADO RIVER VALLEY AZ-
LOWER COLORADO RIVER VALLEY CA-
330 PM MST MON MAY 5 2025 /330 PM PDT MON MAY 5 2025/
TONIGHT
* SKY/WEATHER.....................MOSTLY CLOUDY IN THE EVENING
BECOMING PARTLY CLOUDY AFTER MIDNIGHT. CHANCE OF SHOWERS.
* MIN TEMPERATURE.................58-63.
* 24 HR TREND..................3 DEGREES WARMER.
* MAX HUMIDITY....................65-91 PCT.
* 24 HR TREND..................4 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............NORTHWEST 25 TO 35 MPH.
* CHANCE OF PRECIP................30 PERCENT.
* CWR (>= 0.10 IN)................20 PERCENT.
TUESDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................81-86.
* 24 HR TREND..................5 DEGREES WARMER.
* MIN HUMIDITY....................25-35 PCT.
* 24 HR TREND..................4 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............NORTHWEST 15 TO 25 MPH.
* CHANCE OF PRECIP................10 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* MIXING HEIGHT FOR YUMA..........7700 FT AGL.
* TRANSPORT WIND FOR YUMA.........SOUTH 11 KNOTS.
* DISPERSION FOR YUMA.............VERY GOOD.
TUESDAY NIGHT
* SKY/WEATHER.....................MOSTLY CLEAR. CHANCE OF SHOWERS
IN THE EVENING. SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT.
* MIN TEMPERATURE.................58-63.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................62-87 PCT.
* 24 HR TREND..................3 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHEAST 5 TO 15 MPH IN THE
EVENING BECOMING EAST 5 TO 10 MPH AFTER MIDNIGHT.
* WINDS...10000 FT MSL............WEST 10 TO 20 MPH.
* CHANCE OF PRECIP................20 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
WEDNESDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................84-89.
* 24 HR TREND..................3 DEGREES WARMER.
* MIN HUMIDITY....................22-30 PCT.
* 24 HR TREND..................5 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHEAST 5 TO 10 MPH IN THE
MORNING BECOMING NORTH IN THE AFTERNOON.
* WINDS...10000 FT MSL............NORTHWEST 10 TO 20 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
* MIXING HEIGHT FOR YUMA..........10100 FT AGL.
* TRANSPORT WIND FOR YUMA.........NORTHEAST 5 KNOTS.
* DISPERSION FOR YUMA.............FAIR.
EXTENDED
THURSDAY
CLEAR. LOWS 62-71. HIGHS 92-97. NORTH WINDS 5 TO
10 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 66-74. HIGHS 98-103. NORTH WINDS
5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
SATURDAY
MOSTLY CLEAR. LOWS 69-75. HIGHS 102-107. NORTH WINDS
5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
SUNDAY
MOSTLY CLEAR. LOWS 67-75. HIGHS 100-105.
MONDAY
MOSTLY CLEAR. LOWS 61-70. HIGHS 93-98.
AZZ133-061030-
SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS-
SOUTHERN TONTO NF/WEST SAN CARLOS BIA/SOUTH PORTION FT APACHE BIA/
CAZ-
330 PM MST MON MAY 5 2025
TONIGHT
* SKY/WEATHER.....................PARTLY CLOUDY IN THE EVENING
BECOMING MOSTLY CLOUDY AFTER MIDNIGHT. CHANCE OF SHOWERS AFTER
MIDNIGHT.
* MIN TEMPERATURE.................40-55.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................78-99 PCT.
* 24 HR TREND..................9 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............LIGHT AND VARIABLE IN THE EVENING
BECOMING WEST 5 TO 15 MPH AFTER MIDNIGHT.
* CHANCE OF PRECIP................10 PERCENT IN THE EVENING
BECOMING 50 PERCENT AFTER MIDNIGHT.
* CWR (>= 0.10 IN)................40 PERCENT.
TUESDAY
* SKY/WEATHER.....................MOSTLY CLOUDY. CHANCE OF SHOWERS
.
* MAX TEMPERATURE.................52-66.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................46-69 PCT.
* 24 HR TREND..................19 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............WEST 10 TO 20 MPH.
* CHANCE OF PRECIP................60 PERCENT.
* CWR (>= 0.10 IN)................50 PERCENT.
TUESDAY NIGHT
* SKY/WEATHER.....................PARTLY CLOUDY. SLIGHT CHANCE OF
SHOWERS.
* MIN TEMPERATURE.................41-56.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................72-94 PCT.
* 24 HR TREND..................5 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHEAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............NORTHWEST 15 TO 25 MPH.
* CHANCE OF PRECIP................10 PERCENT.
* CWR (>= 0.10 IN)................10 PERCENT.
WEDNESDAY
* SKY/WEATHER.....................PARTLY SUNNY. SLIGHT CHANCE OF
SHOWERS.
* MAX TEMPERATURE.................65-79.
* 24 HR TREND..................13 DEGREES WARMER.
* MIN HUMIDITY....................27-41 PCT.
* 24 HR TREND..................23 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 5 TO 10 MPH IN THE MORNING
BECOMING WEST IN THE AFTERNOON.
* WINDS...10000 FT MSL............WEST 5 TO 15 MPH.
* CHANCE OF PRECIP................20 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
EXTENDED
THURSDAY
WARMER, CLEAR. LOWS 45-66. HIGHS 74-89. NORTHEAST
WINDS 5 TO 10 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 50-71. HIGHS 80-96. EAST WINDS 10 TO
20 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
SATURDAY
MOSTLY CLEAR. LOWS 56-72. HIGHS 80-97. EAST WINDS
15 TO 25 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 56-72. HIGHS 80-96.
MONDAY
MOSTLY CLEAR. LOWS 53-70. HIGHS 80-94.
CAZ232-061030-
IMPERIAL COUNTY AND EASTERN RIVERSIDE COUNTY-
330 PM PDT MON MAY 5 2025
TONIGHT
* SKY/WEATHER.....................PARTLY CLOUDY. CHANCE OF SHOWERS
IN THE EVENING.
* MIN TEMPERATURE.................56-63.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................60-77 PCT.
* 24 HR TREND..................3 PCT WETTER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTHWEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............NORTH 25 TO 35 MPH.
* CHANCE OF PRECIP................20 PERCENT IN THE EVENING
BECOMING 10 PERCENT AFTER MIDNIGHT.
* CWR (>= 0.10 IN)................10 PERCENT.
TUESDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................77-88.
* 24 HR TREND..................6 DEGREES WARMER.
* MIN HUMIDITY....................25-33 PCT.
* 24 HR TREND..................7 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH.
* WINDS...10000 FT MSL............NORTHWEST 15 TO 25 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
TUESDAY NIGHT
* SKY/WEATHER.....................MOSTLY CLEAR. SLIGHT CHANCE OF
SHOWERS.
* MIN TEMPERATURE.................58-64.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................57-76 PCT.
* 24 HR TREND..................3 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..SOUTH 5 TO 15 MPH IN THE EVENING
BECOMING EAST 5 TO 10 MPH AFTER MIDNIGHT.
* WINDS...10000 FT MSL............WEST 10 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
WEDNESDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................80-89.
* 24 HR TREND..................LITTLE CHANGE.
* MIN HUMIDITY....................22-30 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..EAST 5 TO 15 MPH.
* WINDS...10000 FT MSL............NORTH 10 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
EXTENDED
THURSDAY
CLEAR. LOWS 63-74. HIGHS 87-97. NORTH WINDS 5 TO
10 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 68-77. HIGHS 93-102. NORTHWEST WINDS
5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
SATURDAY
CLEAR. LOWS 71-77. HIGHS 97-106. NORTHWEST WINDS 5 TO
15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
SUNDAY
MOSTLY CLEAR. LOWS 65-77. HIGHS 95-104.
MONDAY
MOSTLY CLEAR. LOWS 60-72. HIGHS 87-96.
CAZ230-061030-
JOSHUA TREE NATIONAL PARK-
330 PM PDT MON MAY 5 2025
TONIGHT
* SKY/WEATHER.....................PARTLY CLOUDY. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE EVENING.
* MIN TEMPERATURE.................46-58.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................67-81 PCT.
* 24 HR TREND..................LITTLE RH CHANGE.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............NORTHWEST 20 TO 30 MPH.
* CHANCE OF PRECIP................20 PERCENT IN THE EVENING
BECOMING 0 PERCENT AFTER MIDNIGHT.
* CWR (>= 0.10 IN)................20 PERCENT.
TUESDAY
* SKY/WEATHER.....................MOSTLY SUNNY.
* MAX TEMPERATURE.................67-79.
* 24 HR TREND..................6 DEGREES WARMER.
* MIN HUMIDITY....................27-38 PCT.
* 24 HR TREND..................15 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHWEST 5 TO 10 MPH IN THE
MORNING BECOMING SOUTHWEST IN THE AFTERNOON.
* WINDS...10000 FT MSL............NORTHWEST 15 TO 25 MPH IN THE
MORNING BECOMING WEST 5 TO 15 MPH IN THE AFTERNOON.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
TUESDAY NIGHT
* SKY/WEATHER.....................MOSTLY CLEAR.
* MIN TEMPERATURE.................48-59.
* 24 HR TREND..................LITTLE CHANGE.
* MAX HUMIDITY....................58-73 PCT.
* 24 HR TREND..................9 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..WEST 5 TO 15 MPH.
* WINDS...10000 FT MSL............NORTHWEST 10 TO 15 MPH.
* CHANCE OF PRECIP................10 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
WEDNESDAY
* SKY/WEATHER.....................SUNNY.
* MAX TEMPERATURE.................70-82.
* 24 HR TREND..................3 DEGREES WARMER.
* MIN HUMIDITY....................24-34 PCT.
* 24 HR TREND..................3 PCT DRIER.
* WINDS - 20 FOOT...SLOPE/VALLEY..NORTHEAST 5 TO 10 MPH IN THE
MORNING BECOMING SOUTHEAST IN THE AFTERNOON.
* WINDS...10000 FT MSL............NORTH 10 TO 15 MPH.
* CHANCE OF PRECIP................0 PERCENT.
* CWR (>= 0.10 IN)................0 PERCENT.
EXTENDED
THURSDAY
CLEAR. LOWS 54-69. HIGHS 78-89. NORTHEAST WINDS 5 TO
10 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 60-72. HIGHS 83-95. NORTH WINDS 5 TO
15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN 15 PERCENT.
SATURDAY
MOSTLY CLEAR. LOWS 63-73. HIGHS 86-99. WEST WINDS
5 TO 15 MPH. MINIMUM RELATIVE HUMIDITY MAY BE LOWER THAN
15 PERCENT.
SUNDAY
MOSTLY CLEAR. LOWS 55-73. HIGHS 83-97.
MONDAY
MOSTLY CLEAR. LOWS 50-67. HIGHS 76-91.
8 TO 10 DAY OUTLOOK
TUESDAY MAY 13TH THROUGH THURSDAY MAY
15TH: NEAR NORMAL TEMPERATURES AND NEAR MEDIAN PRECIPITATION.
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