785
FNUS55 KTWC 100924
FWFTWC
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST ARIZONA
NATIONAL WEATHER SERVICE TUCSON AZ
224 AM MST FRI APR 10 2026
...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY MORNING THROUGH
SUNDAY EVENING...
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
20-FOOT WIND FORECAST OF 'LIGHT WINDS' INDICATES MAINLY
TERRAIN DRIVEN WINDS
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
DISCUSSION
AFTERNOON WINDS WEST/SOUTHWEST 10-15 MPH
TODAY AS A PACIFIC SYSTEM APPROACHES THE REGION. SOUTHWEST
WINDS INCREASE FURTHER THIS WEEKEND AS THE SYSTEM CROSSES THE
REGION, BECOMING 15-25 MPH WITH GUSTS 30 TO 40 MPH. WITH THIS
SYSTEM CONTINUING TO LOOK DRIER, THE COMBINATION OF CRITICAL
WINDS AND RELATIVE HUMIDITY WILL RESULT IN THE POTENTIAL FOR
FIRE WEATHER CONCERNS AS EARLY AS SATURDAY, BUT ESPECIALLY ON
SUNDAY. RH VALUES WILL LIKELY BE A BIT TOO HIGH ON SATURDAY. AS
A RESULT A FIRE WEATHER WATCH IS IN EFFECT FOR SUNDAY. AS THE
FIRST PART OF THIS WEATHER SYSTEM MOVES THROUGH, ANY
PRECIPITATION THIS WEEKEND LOOKS LIMITED IN SCOPE (10 TO 20
PERCENT CHANCE TODAY AND SATURDAY MAINLY FOR GRAHAM AND
GREENLEE COUNTIES). WHILE WINDS REMAIN GUSTY EARLY NEXT WORK
WEEK, COOLER TEMPERATURES AND INCREASED MOISTURE MONDAY SHOULD
HELP MITIGATE WIDESPREAD FIRE WEATHER CONCERNS, THOUGH IT COULD
STILL LINGER ALONG THE NM BORDER MONDAY. THEREAFTER, WINDS
GENERALLY 15 MPH OR LESS THROUGH THE MIDDLE OF NEXT WEEK.
AZZ150-102215-
ARIZONA FIRE WEATHER ZONE 150
SONORAN FDRA-MOST OF PIMA COUNTY-SOUTH CENTRAL PINAL COUNTY-
TOHONO O'ODHAM NATION-TUCSON METROPOLITAN AREA-TDC-
224 AM MST FRI APR 10 2026
...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY MORNING THROUGH
SUNDAY EVENING...
TODAY
* SKY/WEATHER..............PARTLY CLOUDY (40-50 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........83 TO 93 DEGS.
24 HR TREND...........DOWN 2 TO 5 DEGS.
* MIN HUMIDITY.............8 TO 17 PCT.
24 HR TREND...........LITTLE CHANGE.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTH 15 TO 20 MPH.
* MIXING HEIGHT............13361 FT AGL.
* TRANSPORT WINDS..........SOUTH 10 TO 17 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (227137 KNOT-FT).
TONIGHT
* SKY/WEATHER..............PARTLY CLOUDY (30-40 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........54 TO 64 DEGS.
24 HR TREND...........DOWN 1 TO 4 DEGS.
* MAX HUMIDITY.............42 TO 52 PCT.
24 HR TREND...........UP 5 TO 9 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTH 15 TO 20 MPH.
SATURDAY
* SKY/WEATHER..............PARTLY CLOUDY (25-35 PCT) THEN BECOMING
MOSTLY SUNNY (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........79 TO 89 DEGS.
24 HR TREND...........DOWN 3 TO 7 DEGS.
* MIN HUMIDITY.............13 TO 22 PCT.
24 HR TREND...........UP 3 TO 7 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTHWEST 25 TO 30 MPH.
* MIXING HEIGHT............12555 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 15 TO 22 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (276210 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
SUNDAY
PARTLY CLOUDY. LOWS 51 TO 61. HIGHS 75 TO 85. SOUTH
WIND AROUND 25 MPH. MINIMUM HUMIDITY 14 TO 24 PCT.
MONDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 50 TO 60. HIGHS 70 TO 80. SOUTHWEST WIND
AROUND 20 MPH. MINIMUM HUMIDITY 22 TO 32 PCT.
TUESDAY
MOSTLY CLEAR. LOWS 43 TO 53. HIGHS 72 TO 82. LIGHT
WINDS. MINIMUM HUMIDITY 12 TO 20 PCT.
WEDNESDAY
CLEAR. LOWS 45 TO 55. HIGHS 78 TO 88.
THURSDAY
MOSTLY CLEAR. LOWS 49 TO 59. HIGHS 81 TO 91.
NOTE TO USERS - ZONE 150 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE TUCSON INTERNATIONAL AIRPORT
LOCATION (2550 MSL)
AZZ151-102215-
ARIZONA FIRE WEATHER ZONE 151
WESTERN HALF DESERT GRASSLANDS FDRA INCLUDING ELEVATIONS UP TO
5500 FEET IN SOUTHEAST CORNER OF PINAL COUNTY-
EXTREME EASTERN PIMA COUNTY-WESTERN THIRD OF COCHISE COUNTY-
SANTA CRUZ COUNTY-TDC-
224 AM MST FRI APR 10 2026
...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY MORNING THROUGH
SUNDAY EVENING...
TODAY
* SKY/WEATHER..............PARTLY CLOUDY (35-45 PCT).
* CHANCE OF PRECIP.........10 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........78 TO 88 DEGS.
24 HR TREND...........DOWN 1 TO 4 DEGS.
* MIN HUMIDITY.............11 TO 20 PCT.
24 HR TREND...........UP 1 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHEAST AROUND 10 MPH SHIFTING TO THE
SOUTHWEST IN THE AFTERNOON.
* 10000 FT MSL WIND........SOUTH 20 TO 25 MPH.
* MIXING HEIGHT............10606 FT AGL.
* TRANSPORT WINDS..........SOUTH 15 TO 19 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (201514 KNOT-FT).
TONIGHT
* SKY/WEATHER..............PARTLY CLOUDY (30-40 PCT).
* CHANCE OF PRECIP.........10 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........48 TO 58 DEGS.
24 HR TREND...........DOWN 1 DEG.
* MAX HUMIDITY.............44 TO 54 PCT.
24 HR TREND...........UP 13 TO 17 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTHWEST 15 TO 20 MPH.
SATURDAY
* SKY/WEATHER..............PARTLY CLOUDY (25-35 PCT) THEN BECOMING
MOSTLY SUNNY (10-20 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........74 TO 84 DEGS.
24 HR TREND...........DOWN 2 TO 5 DEGS.
* MIN HUMIDITY.............15 TO 24 PCT.
24 HR TREND...........UP 3 TO 7 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST 15 TO 20 MPH.
* 10000 FT MSL WIND........SOUTHWEST 20 TO 25 MPH.
* MIXING HEIGHT............9711 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 19 TO 23 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (223353 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
SUNDAY
PARTLY CLOUDY. LOWS 44 TO 54. HIGHS 71 TO 81. SOUTHWEST
WIND AROUND 25 MPH. MINIMUM HUMIDITY 12 TO 20 PCT.
MONDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 46 TO 56. HIGHS 67 TO 77. SOUTHWEST WIND
AROUND 25 MPH. MINIMUM HUMIDITY 23 TO 33 PCT.
TUESDAY
MOSTLY CLEAR. LOWS 37 TO 47. HIGHS 66 TO 76. LIGHT
WINDS. MINIMUM HUMIDITY 12 TO 22 PCT.
WEDNESDAY
CLEAR. LOWS 39 TO 49. HIGHS 73 TO 83.
THURSDAY
MOSTLY CLEAR. LOWS 43 TO 53. HIGHS 75 TO 85.
NOTE TO USERS - ZONE 151 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE BUENOS AIRES N.W.R. LOCATION
(3500 MSL)
AZZ152-102215-
ARIZONA FIRE WEATHER ZONE 152
EASTERN HALF DESERT GRASSLANDS FDRA INCLUDING ELEVATIONS UP TO
5500 FEET IN SOUTHWEST GRAHAM COUNTY AND EASTERN TWO THIRDS OF
COCHISE COUNTY-SOUTHERN SAN CARLOS RESERVATION-
SOUTHERN GREENLEE COUNTY BELOW 5000 FEET-TDC-
224 AM MST FRI APR 10 2026
...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY MORNING THROUGH
SUNDAY EVENING...
TODAY
* SKY/WEATHER..............MOSTLY CLOUDY (45-55 PCT). SLIGHT CHANCE
OF SHOWERS.
* CHANCE OF PRECIP.........20 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........78 TO 88 DEGS.
24 HR TREND...........DOWN 2 TO 5 DEGS.
* MIN HUMIDITY.............12 TO 22 PCT.
24 HR TREND...........UP 2 TO 5 PCT.
* WIND (20 FT/10-MIN AVG)..LIGHT WINDS BECOMING SOUTHWEST AROUND 15
MPH IN THE AFTERNOON.
* 10000 FT MSL WIND........SOUTH 15 TO 20 MPH.
* MIXING HEIGHT............11700 FT AGL.
* TRANSPORT WINDS..........SOUTH 9 TO 18 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (210600 KNOT-FT).
TONIGHT
* SKY/WEATHER..............PARTLY CLOUDY (35-45 PCT).
* CHANCE OF PRECIP.........10 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........48 TO 58 DEGS.
24 HR TREND...........DOWN 1 DEG.
* MAX HUMIDITY.............43 TO 53 PCT.
24 HR TREND...........UP 14 TO 18 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTHWEST 20 TO 25 MPH.
SATURDAY
* SKY/WEATHER..............PARTLY CLOUDY (25-35 PCT).
* CHANCE OF PRECIP.........10 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........75 TO 85 DEGS.
24 HR TREND...........DOWN 1 TO 4 DEGS.
* MIN HUMIDITY.............15 TO 25 PCT.
24 HR TREND...........UP 1 TO 4 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTHWEST 20 TO 25 MPH.
* MIXING HEIGHT............12418 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 16 TO 22 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (273196 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
SUNDAY
MOSTLY CLEAR. LOWS 43 TO 53. HIGHS 73 TO 83. SOUTHWEST
WIND AROUND 20 MPH. MINIMUM HUMIDITY 9 TO 19 PCT.
MONDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 45 TO 55. HIGHS 69 TO 79. SOUTHWEST WIND
AROUND 25 MPH. MINIMUM HUMIDITY 19 TO 29 PCT.
TUESDAY
MOSTLY CLEAR. LOWS 38 TO 48. HIGHS 66 TO 76. WEST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 12 TO 22 PCT.
WEDNESDAY
CLEAR. LOWS 38 TO 48. HIGHS 72 TO 82.
THURSDAY
MOSTLY CLEAR. LOWS 42 TO 52. HIGHS 75 TO 85.
NOTE TO USERS - ZONE 152 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE CHIRICAHUA N.M. LOCATION (5400 MSL)
AZZ153-102215-
ARIZONA FIRE WEATHER ZONE 153
NORTHERN GRAHAM COUNTY-NORTHERN GREENLEE COUNTY-
WHITE AND GILA MOUNTAINS-APACHE SITGREAVES NF-
SOUTHERN SAN CARLOS RESERVATION ABOVE 5000 FEET-SDC-
224 AM MST FRI APR 10 2026
TODAY
* SKY/WEATHER..............MOSTLY CLOUDY (55-65 PCT). SLIGHT CHANCE
OF SHOWERS.
* CHANCE OF PRECIP.........20 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........66 TO 76 DEGS.
24 HR TREND...........DOWN 1 TO 4 DEGS.
* MIN HUMIDITY.............16 TO 26 PCT.
24 HR TREND...........UP 2 TO 5 PCT.
* WIND (20 FT/10-MIN AVG)..EAST AROUND 10 MPH SHIFTING TO THE SOUTH
IN THE AFTERNOON.
* 10000 FT MSL WIND........SOUTH 15 TO 20 MPH.
* MIXING HEIGHT............10684 FT AGL.
* TRANSPORT WINDS..........EAST 18 KNOTS SHIFTING TO THE SOUTH 22
KNOTS IN THE AFTERNOON.
* VENTILATION CATEGORY.....EXCELLENT (235048 KNOT-FT).
TONIGHT
* SKY/WEATHER..............PARTLY CLOUDY (35-45 PCT).
* CHANCE OF PRECIP.........10 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........43 TO 53 DEGS.
24 HR TREND...........DOWN 3 TO 6 DEGS.
* MAX HUMIDITY.............49 TO 59 PCT.
24 HR TREND...........UP 12 TO 16 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST AROUND 15 MPH IN THE EVENING
BECOMING LIGHT.
* 10000 FT MSL WIND........SOUTHWEST 15 TO 20 MPH.
SATURDAY
* SKY/WEATHER..............PARTLY CLOUDY (25-35 PCT) THEN BECOMING
MOSTLY SUNNY (20-30 PCT).
* CHANCE OF PRECIP.........10 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........63 TO 73 DEGS.
24 HR TREND...........DOWN 1 TO 4 DEGS.
* MIN HUMIDITY.............20 TO 30 PCT.
24 HR TREND...........UP 3 TO 6 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTH AROUND 15 MPH SHIFTING TO THE
SOUTHWEST IN THE AFTERNOON.
* 10000 FT MSL WIND........SOUTHWEST 20 TO 25 MPH.
* MIXING HEIGHT............11162 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 18 TO 24 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (267888 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
SUNDAY
MOSTLY CLEAR. LOWS 37 TO 47. HIGHS 61 TO 71. SOUTHWEST
WIND AROUND 20 MPH. MINIMUM HUMIDITY 12 TO 20 PCT.
MONDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 38 TO 48. HIGHS 56 TO 66. SOUTHWEST WIND
AROUND 20 MPH. MINIMUM HUMIDITY 22 TO 32 PCT.
TUESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF RAIN AND SNOW SHOWERS.
LOWS 32 TO 42. HIGHS 56 TO 66. WEST WIND AROUND 15 MPH. MINIMUM
HUMIDITY 15 TO 25 PCT.
WEDNESDAY
CLEAR. LOWS 32 TO 42. HIGHS 61 TO 71.
THURSDAY
MOSTLY CLEAR. LOWS 37 TO 47. HIGHS 65 TO 75.
NOTE TO USERS - ZONE 153 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE POINT OF PINES LOCATION (6040 MSL)
AZZ154-102215-
ARIZONA FIRE WEATHER ZONE 154
FOREST WOODLANDS FDRA INCLUDING THE SKY ISLANDS OF SOUTHEAST
ARIZONA ABOVE 5500 FEET-CORONADO NF-TDC-
224 AM MST FRI APR 10 2026
TODAY
* SKY/WEATHER..............MOSTLY CLOUDY (45-55 PCT) THEN BECOMING
PARTLY CLOUDY (40-50 PCT). SLIGHT CHANCE
OF SHOWERS.
* CHANCE OF PRECIP.........20 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........68 TO 78 DEGS.
24 HR TREND...........DOWN 2 TO 5 DEGS.
* MIN HUMIDITY.............15 TO 25 PCT.
24 HR TREND...........UP 3 TO 7 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTH 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTH 15 TO 20 MPH.
* MIXING HEIGHT............12131 FT AGL.
* TRANSPORT WINDS..........SOUTH 14 TO 19 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (200161 KNOT-FT).
TONIGHT
* SKY/WEATHER..............PARTLY CLOUDY (30-40 PCT).
* CHANCE OF PRECIP.........10 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........46 TO 56 DEGS.
24 HR TREND...........DOWN 3 TO 6 DEGS.
* MAX HUMIDITY.............39 TO 49 PCT.
24 HR TREND...........UP 8 TO 12 PCT.
* WIND (20 FT/10-MIN AVG)..WEST 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTHWEST 15 TO 20 MPH.
SATURDAY
* SKY/WEATHER..............PARTLY CLOUDY (25-35 PCT).
* CHANCE OF PRECIP.........10 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........65 TO 75 DEGS.
24 HR TREND...........DOWN 1 TO 4 DEGS.
* MIN HUMIDITY.............18 TO 28 PCT.
24 HR TREND...........UP 1 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST 15 TO 20 MPH.
* 10000 FT MSL WIND........SOUTHWEST 20 TO 25 MPH.
* MIXING HEIGHT............12666 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 19 TO 23 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (265986 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
SUNDAY
MOSTLY CLEAR. LOWS 42 TO 52. HIGHS 63 TO 73. SOUTHWEST
WIND AROUND 25 MPH. MINIMUM HUMIDITY 13 TO 23 PCT.
MONDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 43 TO 53. HIGHS 59 TO 69. SOUTHWEST WIND
AROUND 25 MPH. MINIMUM HUMIDITY 25 TO 35 PCT.
TUESDAY
MOSTLY CLEAR. LOWS 35 TO 45. HIGHS 57 TO 67. WEST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 16 TO 26 PCT.
WEDNESDAY
CLEAR. LOWS 36 TO 46. HIGHS 63 TO 73.
THURSDAY
MOSTLY CLEAR. LOWS 41 TO 51. HIGHS 66 TO 76.
NOTE TO USERS - ZONE 154 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE AVERAGE ACROSS THE ZONE
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