249
FNUS55 KTWC 010931
FWFTWC
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST ARIZONA
NATIONAL WEATHER SERVICE TUCSON AZ
231 AM MST FRI MAY 1 2026
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
20-FOOT WIND FORECAST OF 'LIGHT WINDS' INDICATES MAINLY
TERRAIN DRIVEN WINDS
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
DISCUSSION
MINIMUM RELATIVE HUMIDITY MAINLY ABOVE 15-20 PERCENT THROUGH
EARLY NEXT WEEK (LOWER THROUGH THIS WEEKEND WEST OF TUCSON). AN
APPROACHING SYSTEM WILL INCREASE WINDS THIS WEEKEND INTO EARLY
NEXT WEEK AS WELL. WINDS WILL BECOME SOUTHEASTERLY EARLY
SATURDAY MORNING, ESPECIALLY IN EASTERN AREAS OPEN TO EAST-
SOUTHEAST FLOW. WINDS OF 18-23 MPH WITH GUSTS TO 35 MPH FORECAST
SATURDAY THROUGH THE GILA RIVER VALLEY, WITH BREEZY BUT NOT AS
STRONG WINDS ELSEWHERE. WINDS THEN TURN SOUTH TO SOUTHWESTERLY
SUNDAY AND SOUTHWESTERLY MONDAY AND TUESDAY WITH 15 TO 20 MPH
WINDS AND GUSTS TO 35 MPH IN THE WINDIER SPOTS POSSIBLE EACH
AFTERNOON. THE CROSSING SYSTEM TUESDAY INTO WEDNESDAY MAY BRING
A CHANCE OF SHOWERS, HOWEVER THE PROBABILITY OF WETTING RAIN IS
ON THE LOW SIDE AND MAINLY CONTAINED TO MOUNTAIN AREAS.
AZZ150-012215-
ARIZONA FIRE WEATHER ZONE 150
SONORAN FDRA-MOST OF PIMA COUNTY-SOUTH CENTRAL PINAL COUNTY-
TOHONO O'ODHAM NATION-TUCSON METROPOLITAN AREA-TDC-
231 AM MST FRI MAY 1 2026
TODAY
* SKY/WEATHER..............MOSTLY SUNNY (5-15 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........81 TO 91 DEGS.
24 HR TREND...........UP 1 DEG.
* MIN HUMIDITY.............12 TO 22 PCT.
24 HR TREND...........DOWN 1 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTH AROUND 10 MPH SHIFTING TO THE WEST
IN THE AFTERNOON.
* 10000 FT MSL WIND........NORTHWEST 10 TO 15 MPH.
* MIXING HEIGHT............10629 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 12 KNOTS SHIFTING TO THE WEST
11 KNOTS IN THE AFTERNOON.
* VENTILATION CATEGORY.....EXCELLENT (116919 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLEAR (5-15 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........54 TO 64 DEGS.
24 HR TREND...........UP 3 TO 7 DEGS.
* MAX HUMIDITY.............39 TO 49 PCT.
24 HR TREND...........DOWN 22 TO 26 PCT.
* WIND (20 FT/10-MIN AVG)..WEST AROUND 10 MPH SHIFTING TO THE SOUTH
AFTER MIDNIGHT.
* 10000 FT MSL WIND........NORTHWEST 15 TO 20 MPH.
SATURDAY
* SKY/WEATHER..............MOSTLY SUNNY (15-25 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........86 TO 96 DEGS.
24 HR TREND...........UP 2 TO 5 DEGS.
* MIN HUMIDITY.............12 TO 22 PCT.
24 HR TREND...........DOWN 3 TO 6 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHEAST 10 TO 15 MPH.
* 10000 FT MSL WIND........NORTH AROUND 5 MPH SHIFTING TO THE SOUTH
IN THE AFTERNOON.
* MIXING HEIGHT............11870 FT AGL.
* TRANSPORT WINDS..........SOUTHEAST 11 TO 12 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (142440 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
SUNDAY
MOSTLY CLOUDY. LOWS 61 TO 71. HIGHS 85 TO 95. SOUTH
WIND AROUND 15 MPH. MINIMUM HUMIDITY 11 TO 20 PCT.
MONDAY
MOSTLY CLOUDY. LOWS 56 TO 66. HIGHS 76 TO 86. SOUTHWEST
WIND AROUND 20 MPH. MINIMUM HUMIDITY 17 TO 27 PCT.
TUESDAY
PARTLY CLOUDY. LOWS 52 TO 62. HIGHS 73 TO 83.
SOUTHWEST WIND AROUND 20 MPH. MINIMUM HUMIDITY 16 TO 26 PCT.
WEDNESDAY
CLEAR. LOWS 47 TO 57. HIGHS 77 TO 87.
THURSDAY
CLEAR. LOWS 51 TO 61. HIGHS 85 TO 95.
NOTE TO USERS - ZONE 150 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE TUCSON INTERNATIONAL AIRPORT
LOCATION (2550 MSL)
AZZ151-012215-
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-
231 AM MST FRI MAY 1 2026
TODAY
* SKY/WEATHER..............MOSTLY SUNNY (5-15 PCT) THEN BECOMING
PARTLY CLOUDY (25-35 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........73 TO 83 DEGS.
24 HR TREND...........UP 1 DEG.
* MIN HUMIDITY.............17 TO 27 PCT.
24 HR TREND...........DOWN 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............9422 FT AGL.
* TRANSPORT WINDS..........WEST 9 TO 12 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (113064 KNOT-FT).
TONIGHT
* SKY/WEATHER..............PARTLY CLOUDY (25-35 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........47 TO 57 DEGS.
24 HR TREND...........UP 2 TO 5 DEGS.
* MAX HUMIDITY.............61 TO 71 PCT.
24 HR TREND...........DOWN 7 TO 11 PCT.
* WIND (20 FT/10-MIN AVG)..NORTHWEST AROUND 10 MPH SHIFTING TO THE
EAST AFTER MIDNIGHT.
* 10000 FT MSL WIND........WEST 10 TO 15 MPH.
SATURDAY
* SKY/WEATHER..............MOSTLY SUNNY (15-25 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........76 TO 86 DEGS.
24 HR TREND...........UP 1 TO 4 DEGS.
* MIN HUMIDITY.............16 TO 26 PCT.
24 HR TREND...........DOWN 1 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHEAST 15 TO 20 MPH.
* 10000 FT MSL WIND........WEST AROUND 5 MPH SHIFTING TO THE SOUTH
IN THE AFTERNOON.
* MIXING HEIGHT............12382 FT AGL.
* TRANSPORT WINDS..........SOUTHEAST 14 TO 15 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (185730 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
SUNDAY
MOSTLY CLOUDY. LOWS 54 TO 64. HIGHS 77 TO 87. SOUTH
WIND AROUND 20 MPH. MINIMUM HUMIDITY 18 TO 28 PCT.
MONDAY
MOSTLY CLOUDY. LOWS 51 TO 61. HIGHS 73 TO 83. SOUTHWEST
WIND AROUND 20 MPH. MINIMUM HUMIDITY 15 TO 25 PCT.
TUESDAY
PARTLY CLOUDY. LOWS 48 TO 58. HIGHS 68 TO 78.
SOUTHWEST WIND AROUND 25 MPH. MINIMUM HUMIDITY 20 TO 30 PCT.
WEDNESDAY
CLEAR. LOWS 41 TO 51. HIGHS 71 TO 81.
THURSDAY
CLEAR. LOWS 45 TO 55. HIGHS 78 TO 88.
NOTE TO USERS - ZONE 151 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE BUENOS AIRES N.W.R. LOCATION
(3500 MSL)
AZZ152-012215-
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-
231 AM MST FRI MAY 1 2026
TODAY
* SKY/WEATHER..............PARTLY CLOUDY (30-40 PCT).
* CHANCE OF PRECIP.........10 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........74 TO 84 DEGS.
24 HR TREND...........UP 3 TO 6 DEGS.
* MIN HUMIDITY.............16 TO 26 PCT.
24 HR TREND...........UP 2 TO 5 PCT.
* WIND (20 FT/10-MIN AVG)..WEST 10 TO 15 MPH.
* 10000 FT MSL WIND........NORTHWEST 10 TO 15 MPH.
* MIXING HEIGHT............9496 FT AGL.
* TRANSPORT WINDS..........WEST 11 TO 13 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (123448 KNOT-FT).
TONIGHT
* SKY/WEATHER..............PARTLY CLOUDY (40-50 PCT).
* CHANCE OF PRECIP.........10 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........46 TO 56 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MAX HUMIDITY.............70 TO 80 PCT.
24 HR TREND...........DOWN 11 TO 15 PCT.
* WIND (20 FT/10-MIN AVG)..WEST AROUND 15 MPH SHIFTING TO THE EAST
AFTER MIDNIGHT.
* 10000 FT MSL WIND........WEST 10 TO 15 MPH.
SATURDAY
* SKY/WEATHER..............PARTLY CLOUDY (35-45 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........72 TO 82 DEGS.
24 HR TREND...........UP 1 TO 4 DEGS.
* MIN HUMIDITY.............21 TO 31 PCT.
24 HR TREND...........UP 7 TO 11 PCT.
* WIND (20 FT/10-MIN AVG)..BREEZY. SOUTHEAST 15 TO 25 MPH.
* 10000 FT MSL WIND........WEST AROUND 5 MPH SHIFTING TO THE
SOUTHWEST IN THE AFTERNOON.
* MIXING HEIGHT............8491 FT AGL.
* TRANSPORT WINDS..........SOUTHEAST 19 TO 21 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (178311 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
SUNDAY
MOSTLY CLOUDY. LOWS 51 TO 61. HIGHS 76 TO 86. SOUTHEAST
WIND AROUND 20 MPH. MINIMUM HUMIDITY 18 TO 28 PCT.
MONDAY
MOSTLY CLOUDY. LOWS 49 TO 59. HIGHS 74 TO 84. SOUTHWEST
WIND AROUND 20 MPH. MINIMUM HUMIDITY 14 TO 24 PCT.
TUESDAY
PARTLY CLOUDY. LOWS 48 TO 58. HIGHS 68 TO 78. WEST
WIND AROUND 20 MPH. MINIMUM HUMIDITY 18 TO 28 PCT.
WEDNESDAY
CLEAR. LOWS 41 TO 51. HIGHS 71 TO 81.
THURSDAY
MOSTLY CLEAR. LOWS 44 TO 54. HIGHS 77 TO 87.
NOTE TO USERS - ZONE 152 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE CHIRICAHUA N.M. LOCATION (5400 MSL)
AZZ153-012215-
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-
231 AM MST FRI MAY 1 2026
TODAY
* SKY/WEATHER..............MOSTLY SUNNY (20-30 PCT) THEN BECOMING
PARTLY CLOUDY (35-45 PCT). SLIGHT CHANCE
OF SHOWERS.
* CHANCE OF PRECIP.........10 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........65 TO 75 DEGS.
24 HR TREND...........UP 1 DEG.
* MIN HUMIDITY.............14 TO 24 PCT.
24 HR TREND...........UP 1 PCT.
* WIND (20 FT/10-MIN AVG)..NORTHWEST AROUND 10 MPH SHIFTING TO THE
WEST IN THE AFTERNOON.
* 10000 FT MSL WIND........NORTH AROUND 10 MPH SHIFTING TO THE WEST
IN THE AFTERNOON.
* MIXING HEIGHT............12100 FT AGL.
* TRANSPORT WINDS..........NORTHWEST 10 TO 13 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (157300 KNOT-FT).
TONIGHT
* SKY/WEATHER..............PARTLY CLOUDY (40-50 PCT). SLIGHT CHANCE
OF SHOWERS.
* CHANCE OF PRECIP.........20 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........39 TO 49 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MAX HUMIDITY.............73 TO 83 PCT.
24 HR TREND...........UP 3 TO 6 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST AROUND 15 MPH SHIFTING TO THE
SOUTHEAST AFTER MIDNIGHT.
* 10000 FT MSL WIND........WEST AROUND 15 MPH BECOMING SOUTHWEST
AROUND 5 MPH AFTER MIDNIGHT.
SATURDAY
* 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..........61 TO 71 DEGS.
24 HR TREND...........DOWN 3 TO 7 DEGS.
* MIN HUMIDITY.............29 TO 39 PCT.
24 HR TREND...........UP 6 TO 10 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHEAST 10 TO 20 MPH.
* 10000 FT MSL WIND........SOUTHWEST 5 TO 10 MPH.
* MIXING HEIGHT............9697 FT AGL.
* TRANSPORT WINDS..........SOUTH 14 TO 16 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (155152 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
SUNDAY
MOSTLY CLOUDY. LOWS 43 TO 53. HIGHS 64 TO 74. SOUTHEAST
WIND AROUND 15 MPH. MINIMUM HUMIDITY 24 TO 34 PCT.
MONDAY
MOSTLY CLOUDY. LOWS 43 TO 53. HIGHS 62 TO 72. WEST WIND
AROUND 20 MPH. MINIMUM HUMIDITY 15 TO 25 PCT.
TUESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 40 TO 50. HIGHS 58 TO 68. WEST WIND AROUND
15 MPH. MINIMUM HUMIDITY 20 TO 30 PCT.
WEDNESDAY
MOSTLY CLEAR. LOWS 35 TO 45. HIGHS 61 TO 71.
THURSDAY
MOSTLY CLEAR. LOWS 38 TO 48. HIGHS 67 TO 77.
NOTE TO USERS - ZONE 153 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE POINT OF PINES LOCATION (6040 MSL)
AZZ154-012215-
ARIZONA FIRE WEATHER ZONE 154
FOREST WOODLANDS FDRA INCLUDING THE SKY ISLANDS OF SOUTHEAST
ARIZONA ABOVE 5500 FEET-CORONADO NF-TDC-
231 AM MST FRI MAY 1 2026
TODAY
* SKY/WEATHER..............PARTLY CLOUDY (25-35 PCT).
* CHANCE OF PRECIP.........10 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........63 TO 73 DEGS.
24 HR TREND...........UP 2 TO 5 DEGS.
* MIN HUMIDITY.............24 TO 34 PCT.
24 HR TREND...........DOWN 2 TO 5 PCT.
* WIND (20 FT/10-MIN AVG)..NORTHWEST 10 TO 15 MPH.
* 10000 FT MSL WIND........NORTHWEST 10 TO 15 MPH.
* MIXING HEIGHT............10635 FT AGL.
* TRANSPORT WINDS..........NORTHWEST 11 TO 12 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (122302 KNOT-FT).
TONIGHT
* SKY/WEATHER..............PARTLY CLOUDY (30-40 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........42 TO 52 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MAX HUMIDITY.............70 TO 80 PCT.
24 HR TREND...........DOWN 20 TO 24 PCT.
* WIND (20 FT/10-MIN AVG)..NORTHWEST AROUND 15 MPH SHIFTING TO THE
EAST AFTER MIDNIGHT.
* 10000 FT MSL WIND........WEST 10 TO 15 MPH.
SATURDAY
* SKY/WEATHER..............PARTLY CLOUDY (30-40 PCT) THEN BECOMING
MOSTLY SUNNY (15-25 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........63 TO 73 DEGS.
24 HR TREND...........DOWN 1 TO 4 DEGS.
* MIN HUMIDITY.............31 TO 41 PCT.
24 HR TREND...........UP 3 TO 6 PCT.
* WIND (20 FT/10-MIN AVG)..BREEZY. EAST 15 TO 25 MPH.
* 10000 FT MSL WIND........WEST AROUND 5 MPH SHIFTING TO THE
SOUTHWEST IN THE AFTERNOON.
* MIXING HEIGHT............10320 FT AGL.
* TRANSPORT WINDS..........SOUTHEAST 17 TO 19 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (185760 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
SUNDAY
MOSTLY CLOUDY. LOWS 48 TO 58. HIGHS 66 TO 76. SOUTHEAST
WIND AROUND 25 MPH. MINIMUM HUMIDITY 24 TO 34 PCT.
MONDAY
MOSTLY CLOUDY. LOWS 47 TO 57. HIGHS 64 TO 74. SOUTHWEST
WIND AROUND 20 MPH. MINIMUM HUMIDITY 19 TO 29 PCT.
TUESDAY
PARTLY CLOUDY. LOWS 44 TO 54. HIGHS 59 TO 69.
SOUTHWEST WIND AROUND 25 MPH. MINIMUM HUMIDITY 24 TO 34 PCT.
WEDNESDAY
CLEAR. LOWS 38 TO 48. HIGHS 62 TO 72.
THURSDAY
MOSTLY CLEAR. LOWS 42 TO 52. HIGHS 67 TO 77.
NOTE TO USERS - ZONE 154 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE AVERAGE ACROSS THE ZONE
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