763
FNUS55 KTWC 310745
FWFTWC
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST ARIZONA
NATIONAL WEATHER SERVICE TUCSON AZ
1245 AM MST TUE MAR 31 2026
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
20-FOOT WIND FORECAST OF 'LIGHT WINDS' INDICATES MAINLY
TERRAIN DRIVEN WINDS
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
DISCUSSION
MOISTURE IN PLACE ACROSS SOUTHEAST ARIZONA WILL RESULT IN A
CHANCE OF SHOWERS AND THUNDERSTORMS TODAY. PRECIPITATION TOTALS
WILL GENERALLY BE LIGHT, LESS THAN A TENTH OF AN INCH IN MOST
LOCATIONS ACROSS SOUTHEAST ARIZONA. THE STRONGER THUNDERSTORMS MAY
PRODUCE BETWEEN A QUARTER AND THIRD INCH OF RAINFALL. THE MAIN
THREATS FROM THE THUNDERSTORMS WILL BE ERRATIC AND GUSTY OUTFLOW
WINDS TO 45 MPH, AREAS OF BLOWING DUST REDUCING VISIBILITIES AND
LIGHTNING. THERE WILL ALSO BE A CHANCE OF SHOWERS MAINLY NORTHEAST
OF TUCSON WEDNESDAY MORNING AS A FRONT MOVES THROUGH. MINIMUM RH
VALUES 15-25 PERCENT TODAY AND WEDNESDAY. RH VALUES WILL GRADUALLY
LOWER INTO THE SINGLE DIGITS BY THE WEEKEND. BREEZY SOUTHWEST
WINDS OF 15-20 MPH AND GUSTS TO 30-35 MPH ARE EXPECTED TODAY, WITH
WEST WINDS OF 15-20 MPH AND GUSTS TO 35-40 MPH TO THE EAST OF
TUCSON ON WEDNESDAY AFTERNOON.
AZZ150-310900-
ARIZONA FIRE WEATHER ZONE 150
SONORAN FDRA-MOST OF PIMA COUNTY-SOUTH CENTRAL PINAL COUNTY-
TOHONO O'ODHAM NATION-TUCSON METROPOLITAN AREA-TDC-
1245 AM MST TUE MAR 31 2026
TODAY
* SKY/WEATHER..............PARTLY CLOUDY (40-50 PCT). SLIGHT CHANCE
OF SHOWERS.
* CHANCE OF PRECIP.........10 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........84 TO 94 DEGS.
24 HR TREND...........DOWN 3 TO 6 DEGS.
* MIN HUMIDITY.............21 TO 31 PCT.
24 HR TREND...........UP 3 TO 6 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST AROUND 10 MPH.
* 10000 FT MSL WIND........SOUTHWEST 5 TO 10 MPH.
* MIXING HEIGHT............10630 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 12 TO 14 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (148820 KNOT-FT).
TONIGHT
* SKY/WEATHER..............PARTLY CLOUDY (40-50 PCT). SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS.
* CHANCE OF PRECIP.........20 PCT.
* CHANCE OF THUNDER........20 PCT.
* MIN TEMPERATURE..........59 TO 69 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MAX HUMIDITY.............60 TO 70 PCT.
24 HR TREND...........UP 6 TO 10 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST AROUND 10 MPH SHIFTING TO THE
SOUTH AFTER MIDNIGHT.
* 10000 FT MSL WIND........WEST 10 TO 15 MPH.
TUESDAY
* SKY/WEATHER..............PARTLY CLOUDY (35-45 PCT). SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS.
* CHANCE OF PRECIP.........10 PCT.
* CHANCE OF THUNDER........10 PCT.
* MAX TEMPERATURE..........84 TO 94 DEGS.
24 HR TREND...........DOWN 1 DEG.
* MIN HUMIDITY.............18 TO 28 PCT.
24 HR TREND...........DOWN 3 TO 6 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTH 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTHWEST AROUND 15 MPH INCREASING TO
AROUND 25 MPH IN THE AFTERNOON.
* MIXING HEIGHT............12398 FT AGL.
* TRANSPORT WINDS..........SOUTH 19 TO 24 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (297552 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
WEDNESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS 58 TO
68. HIGHS 75 TO 85. SOUTHWEST WIND AROUND 15 MPH. MINIMUM
HUMIDITY 16 TO 26 PCT.
THURSDAY
MOSTLY CLEAR. LOWS 50 TO 60. HIGHS 79 TO 89. SOUTH
WIND AROUND 15 MPH. MINIMUM HUMIDITY 12 TO 19 PCT.
FRIDAY
MOSTLY CLEAR. LOWS 50 TO 60. HIGHS 78 TO 88. SOUTHWEST
WIND AROUND 15 MPH. MINIMUM HUMIDITY 11 TO 18 PCT.
SATURDAY
MOSTLY CLEAR. LOWS 50 TO 60. HIGHS 81 TO 91.
SUNDAY
MOSTLY CLEAR. LOWS 52 TO 62. HIGHS 84 TO 94.
NOTE TO USERS - ZONE 150 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE TUCSON INTERNATIONAL AIRPORT
LOCATION (2550 MSL)
AZZ151-310900-
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-
1245 AM MST TUE MAR 31 2026
TODAY
* SKY/WEATHER..............MOSTLY CLOUDY (50-60 PCT) THEN BECOMING
PARTLY CLOUDY (40-50 PCT). SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS.
* CHANCE OF PRECIP.........30 PCT.
* CHANCE OF THUNDER........20 PCT.
* MAX TEMPERATURE..........77 TO 87 DEGS.
24 HR TREND...........DOWN 4 TO 8 DEGS.
* MIN HUMIDITY.............24 TO 34 PCT.
24 HR TREND...........UP 10 TO 14 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTH AROUND 10 MPH SHIFTING TO THE WEST
IN THE AFTERNOON.
* 10000 FT MSL WIND........NORTH 5 TO 10 MPH.
* MIXING HEIGHT............9344 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 10 KNOTS SHIFTING TO THE WEST
12 KNOTS IN THE AFTERNOON.
* VENTILATION CATEGORY.....EXCELLENT (112128 KNOT-FT).
TONIGHT
* SKY/WEATHER..............PARTLY CLOUDY (40-50 PCT). SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS.
* CHANCE OF PRECIP.........20 PCT.
* CHANCE OF THUNDER........20 PCT.
* MIN TEMPERATURE..........51 TO 61 DEGS.
24 HR TREND...........DOWN 2 TO 5 DEGS.
* MAX HUMIDITY.............72 TO 82 PCT.
24 HR TREND...........UP 8 TO 12 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST AROUND 15 MPH SHIFTING TO THE
SOUTH AFTER MIDNIGHT.
* 10000 FT MSL WIND........WEST 10 TO 15 MPH.
TUESDAY
* SKY/WEATHER..............PARTLY CLOUDY (40-50 PCT). SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS.
* CHANCE OF PRECIP.........20 PCT.
* CHANCE OF THUNDER........20 PCT.
* MAX TEMPERATURE..........78 TO 88 DEGS.
24 HR TREND...........UP 1 DEG.
* MIN HUMIDITY.............22 TO 32 PCT.
24 HR TREND...........LITTLE CHANGE.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTHWEST 15 TO 20 MPH.
* MIXING HEIGHT............10366 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 13 TO 20 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (207320 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
WEDNESDAY
PARTLY CLOUDY. NOT AS WARM. SLIGHT CHANCE OF
SHOWERS. LOWS 51 TO 61. HIGHS 68 TO 78. WEST WIND AROUND 20 MPH.
MINIMUM HUMIDITY 21 TO 31 PCT.
THURSDAY
MOSTLY CLEAR. LOWS 43 TO 53. HIGHS 74 TO 84.
SOUTHWEST WIND AROUND 15 MPH. MINIMUM HUMIDITY 13 TO 21 PCT.
FRIDAY
MOSTLY CLEAR. LOWS 44 TO 54. HIGHS 73 TO 83. SOUTHWEST
WIND AROUND 15 MPH. MINIMUM HUMIDITY 12 TO 19 PCT.
SATURDAY
PARTLY CLOUDY. LOWS 46 TO 56. HIGHS 74 TO 84.
SUNDAY
MOSTLY CLEAR. LOWS 46 TO 56. HIGHS 76 TO 86.
NOTE TO USERS - ZONE 151 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE BUENOS AIRES N.W.R. LOCATION
(3500 MSL)
AZZ152-310900-
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-
1245 AM MST TUE MAR 31 2026
TODAY
* SKY/WEATHER..............MOSTLY CLOUDY (55-65 PCT). SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS.
* CHANCE OF PRECIP.........30 PCT.
* CHANCE OF THUNDER........20 PCT.
* MAX TEMPERATURE..........77 TO 87 DEGS.
24 HR TREND...........DOWN 3 TO 6 DEGS.
* MIN HUMIDITY.............21 TO 31 PCT.
24 HR TREND...........UP 7 TO 11 PCT.
* WIND (20 FT/10-MIN AVG)..WEST 10 TO 15 MPH.
* 10000 FT MSL WIND........NORTHWEST 10 TO 15 MPH.
* MIXING HEIGHT............9734 FT AGL.
* TRANSPORT WINDS..........WEST 12 TO 14 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (136276 KNOT-FT).
TONIGHT
* SKY/WEATHER..............PARTLY CLOUDY (40-50 PCT). SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS.
* CHANCE OF PRECIP.........20 PCT.
* CHANCE OF THUNDER........20 PCT.
* MIN TEMPERATURE..........50 TO 60 DEGS.
24 HR TREND...........DOWN 2 TO 5 DEGS.
* MAX HUMIDITY.............67 TO 77 PCT.
24 HR TREND...........UP 8 TO 12 PCT.
* WIND (20 FT/10-MIN AVG)..WEST 10 TO 15 MPH.
* 10000 FT MSL WIND........WEST 15 TO 20 MPH.
TUESDAY
* SKY/WEATHER..............PARTLY CLOUDY (40-50 PCT) THEN BECOMING
MOSTLY CLOUDY (45-55 PCT). SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS.
* CHANCE OF PRECIP.........20 PCT.
* CHANCE OF THUNDER........20 PCT.
* MAX TEMPERATURE..........77 TO 87 DEGS.
24 HR TREND...........UP 1 DEG.
* MIN HUMIDITY.............23 TO 33 PCT.
24 HR TREND...........UP 2 TO 5 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTH AROUND 10 MPH SHIFTING TO THE
SOUTHWEST IN THE AFTERNOON.
* 10000 FT MSL WIND........WEST 15 TO 20 MPH.
* MIXING HEIGHT............9995 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 10 TO 18 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (179910 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
WEDNESDAY
PARTLY CLOUDY. NOT AS WARM. SLIGHT CHANCE OF
SHOWERS. LOWS 50 TO 60. HIGHS 67 TO 77. WEST WIND AROUND 20 MPH.
MINIMUM HUMIDITY 22 TO 32 PCT.
THURSDAY
MOSTLY CLEAR. LOWS 42 TO 52. HIGHS 74 TO 84.
SOUTHWEST WIND AROUND 15 MPH. MINIMUM HUMIDITY 12 TO 21 PCT.
FRIDAY
MOSTLY CLEAR. LOWS 44 TO 54. HIGHS 73 TO 83. WEST WIND
AROUND 20 MPH. MINIMUM HUMIDITY 11 TO 20 PCT.
SATURDAY
PARTLY CLOUDY. LOWS 44 TO 54. HIGHS 72 TO 82.
SUNDAY
MOSTLY CLEAR. LOWS 45 TO 55. HIGHS 72 TO 82.
NOTE TO USERS - ZONE 152 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE CHIRICAHUA N.M. LOCATION (5400 MSL)
AZZ153-310900-
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-
1245 AM MST TUE MAR 31 2026
TODAY
* SKY/WEATHER..............MOSTLY CLOUDY (55-65 PCT). CHANCE OF
SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS.
* CHANCE OF PRECIP.........40 PCT.
* CHANCE OF THUNDER........20 PCT.
* MAX TEMPERATURE..........68 TO 78 DEGS.
24 HR TREND...........DOWN 2 TO 5 DEGS.
* MIN HUMIDITY.............22 TO 32 PCT.
24 HR TREND...........UP 11 TO 15 PCT.
* WIND (20 FT/10-MIN AVG)..WEST 10 TO 15 MPH.
* 10000 FT MSL WIND........NORTHWEST 10 TO 15 MPH.
* MIXING HEIGHT............10368 FT AGL.
* TRANSPORT WINDS..........NORTHWEST 13 TO 16 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (165888 KNOT-FT).
TONIGHT
* SKY/WEATHER..............PARTLY CLOUDY (40-50 PCT). SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS.
* CHANCE OF PRECIP.........10 PCT.
* CHANCE OF THUNDER........10 PCT.
* MIN TEMPERATURE..........45 TO 55 DEGS.
24 HR TREND...........DOWN 1 TO 4 DEGS.
* MAX HUMIDITY.............65 TO 75 PCT.
24 HR TREND...........UP 22 TO 26 PCT.
* WIND (20 FT/10-MIN AVG)..WEST AROUND 15 MPH IN THE EVENING
BECOMING LIGHT.
* 10000 FT MSL WIND........WEST 20 TO 25 MPH.
TUESDAY
* SKY/WEATHER..............MOSTLY CLOUDY (55-65 PCT). SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS.
* CHANCE OF PRECIP.........30 PCT.
* CHANCE OF THUNDER........20 PCT.
* MAX TEMPERATURE..........66 TO 76 DEGS.
24 HR TREND...........DOWN 1 TO 4 DEGS.
* MIN HUMIDITY.............28 TO 38 PCT.
24 HR TREND...........UP 3 TO 7 PCT.
* WIND (20 FT/10-MIN AVG)..WEST 10 TO 15 MPH.
* 10000 FT MSL WIND........WEST 20 TO 25 MPH.
* MIXING HEIGHT............9136 FT AGL.
* TRANSPORT WINDS..........WEST 15 TO 22 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (200992 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
WEDNESDAY
MOSTLY CLOUDY. COOLER. CHANCE OF SHOWERS. LOWS 42 TO
52. HIGHS 54 TO 64. WEST WIND AROUND 20 MPH. MINIMUM HUMIDITY
32 TO 42 PCT.
THURSDAY
MOSTLY CLEAR. LOWS 36 TO 46. HIGHS 61 TO 71. WEST
WIND AROUND 15 MPH. MINIMUM HUMIDITY 15 TO 25 PCT.
FRIDAY
MOSTLY CLEAR. LOWS 39 TO 49. HIGHS 62 TO 72. WEST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 13 TO 22 PCT.
SATURDAY
MOSTLY CLEAR. LOWS 36 TO 46. HIGHS 62 TO 72.
SUNDAY
MOSTLY CLEAR. LOWS 38 TO 48. HIGHS 62 TO 72.
NOTE TO USERS - ZONE 153 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE POINT OF PINES LOCATION (6040 MSL)
AZZ154-310900-
ARIZONA FIRE WEATHER ZONE 154
FOREST WOODLANDS FDRA INCLUDING THE SKY ISLANDS OF SOUTHEAST
ARIZONA ABOVE 5500 FEET-CORONADO NF-TDC-
1245 AM MST TUE MAR 31 2026
TODAY
* SKY/WEATHER..............MOSTLY CLOUDY (55-65 PCT). CHANCE OF
SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS.
* CHANCE OF PRECIP.........30 PCT.
* CHANCE OF THUNDER........20 PCT.
* MAX TEMPERATURE..........67 TO 77 DEGS.
24 HR TREND...........DOWN 4 TO 8 DEGS.
* MIN HUMIDITY.............27 TO 37 PCT.
24 HR TREND...........UP 11 TO 15 PCT.
* WIND (20 FT/10-MIN AVG)..WEST 10 TO 15 MPH.
* 10000 FT MSL WIND........NORTHWEST 10 TO 15 MPH.
* MIXING HEIGHT............10090 FT AGL.
* TRANSPORT WINDS..........NORTHWEST 11 TO 13 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (121080 KNOT-FT).
TONIGHT
* SKY/WEATHER..............PARTLY CLOUDY (40-50 PCT). SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS.
* CHANCE OF PRECIP.........20 PCT.
* CHANCE OF THUNDER........20 PCT.
* MIN TEMPERATURE..........48 TO 58 DEGS.
24 HR TREND...........DOWN 2 TO 5 DEGS.
* MAX HUMIDITY.............64 TO 74 PCT.
24 HR TREND...........UP 14 TO 18 PCT.
* WIND (20 FT/10-MIN AVG)..WEST 10 TO 15 MPH.
* 10000 FT MSL WIND........NORTHWEST 15 TO 20 MPH.
TUESDAY
* SKY/WEATHER..............PARTLY CLOUDY (45-55 PCT). SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS.
* CHANCE OF PRECIP.........20 PCT.
* CHANCE OF THUNDER........20 PCT.
* MAX TEMPERATURE..........68 TO 78 DEGS.
24 HR TREND...........UP 1 DEG.
* MIN HUMIDITY.............29 TO 39 PCT.
24 HR TREND...........UP 1 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTHWEST 15 TO 20 MPH.
* MIXING HEIGHT............10130 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 10 KNOTS INCREASING TO 20
KNOTS IN THE AFTERNOON.
* VENTILATION CATEGORY.....EXCELLENT (202600 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
WEDNESDAY
PARTLY CLOUDY. COOLER. SLIGHT CHANCE OF SHOWERS.
LOWS 47 TO 57. HIGHS 58 TO 68. WEST WIND AROUND 20 MPH. MINIMUM
HUMIDITY 27 TO 37 PCT.
THURSDAY
MOSTLY CLEAR. LOWS 41 TO 51. HIGHS 65 TO 75.
SOUTHWEST WIND AROUND 15 MPH. MINIMUM HUMIDITY 15 TO 25 PCT.
FRIDAY
MOSTLY CLEAR. LOWS 44 TO 54. HIGHS 64 TO 74. WEST WIND
AROUND 20 MPH. MINIMUM HUMIDITY 13 TO 23 PCT.
SATURDAY
PARTLY CLOUDY. LOWS 44 TO 54. HIGHS 63 TO 73.
SUNDAY
MOSTLY CLEAR. LOWS 44 TO 54. HIGHS 64 TO 74.
NOTE TO USERS - ZONE 154 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE AVERAGE ACROSS THE ZONE
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