699
FNUS55 KTWC 270917
FWFTWC
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST ARIZONA
NATIONAL WEATHER SERVICE TUCSON AZ
217 AM MST MON APR 27 2026
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
20-FOOT WIND FORECAST OF 'LIGHT WINDS' INDICATES MAINLY
TERRAIN DRIVEN WINDS
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
DISCUSSION
AFTER A BREEZY TO WINDY WEEKEND, LIGHTER WINDS
WILL BE AROUND THROUGH MID-WEEK (THOUGH SOME BREEZES CONTINUE
NEAR THE NM BORDER). THE NEXT WEATHER SYSTEM MOVES IN BY AROUND
THURSDAY INTO FRIDAY RESULTING IN INCREASED MOISTURE AND
PRECIPITATION CHANCES.
AZZ150-272300-
ARIZONA FIRE WEATHER ZONE 150
SONORAN FDRA-MOST OF PIMA COUNTY-SOUTH CENTRAL PINAL COUNTY-
TOHONO O'ODHAM NATION-TUCSON METROPOLITAN AREA-TDC-
217 AM MST MON APR 27 2026
TODAY
* SKY/WEATHER..............MOSTLY SUNNY (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........74 TO 84 DEGS.
24 HR TREND...........UP 3 TO 6 DEGS.
* MIN HUMIDITY.............12 TO 22 PCT.
24 HR TREND...........DOWN 4 TO 8 PCT.
* WIND (20 FT/10-MIN AVG)..LIGHT WINDS BECOMING SOUTHWEST AROUND 15
MPH IN THE AFTERNOON.
* 10000 FT MSL WIND........SOUTHWEST 25 TO 30 MPH.
* MIXING HEIGHT............9211 FT AGL.
* TRANSPORT WINDS..........SOUTHEAST 6 KNOTS INCREASING TO
SOUTHWEST 16 KNOTS IN THE AFTERNOON.
* VENTILATION CATEGORY.....EXCELLENT (147376 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLEAR (5-15 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........45 TO 55 DEGS.
24 HR TREND...........UP 2 TO 5 DEGS.
* MAX HUMIDITY.............40 TO 50 PCT.
24 HR TREND...........DOWN 10 TO 14 PCT.
* WIND (20 FT/10-MIN AVG)..WEST AROUND 15 MPH IN THE EVENING
BECOMING LIGHT.
* 10000 FT MSL WIND........SOUTHWEST 25 TO 30 MPH.
TUESDAY
* SKY/WEATHER..............MOSTLY SUNNY (10-20 PCT) THEN BECOMING
PARTLY CLOUDY (25-35 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........79 TO 89 DEGS.
24 HR TREND...........UP 3 TO 6 DEGS.
* MIN HUMIDITY.............7 TO 13 PCT.
24 HR TREND...........DOWN 4 TO 8 PCT.
* WIND (20 FT/10-MIN AVG)..LIGHT WINDS BECOMING NORTHWEST AROUND 10
MPH IN THE AFTERNOON.
* 10000 FT MSL WIND........SOUTHWEST 25 TO 30 MPH.
* MIXING HEIGHT............7804 FT AGL.
* TRANSPORT WINDS..........EAST 6 KNOTS SHIFTING TO THE WEST 10
KNOTS IN THE AFTERNOON.
* VENTILATION CATEGORY.....VERY GOOD (78040 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
WEDNESDAY
MOSTLY CLOUDY. LOWS 54 TO 64. HIGHS 80 TO 90. LIGHT
WINDS. MINIMUM HUMIDITY 10 TO 15 PCT.
THURSDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 56 TO 66. HIGHS 74 TO 84. SOUTHWEST WIND
AROUND 20 MPH. MINIMUM HUMIDITY 24 TO 34 PCT.
FRIDAY
MOSTLY CLEAR. LOWS 50 TO 60. HIGHS 78 TO 88. SOUTHWEST
WIND AROUND 15 MPH. MINIMUM HUMIDITY 18 TO 28 PCT.
SATURDAY
MOSTLY CLEAR. LOWS 54 TO 64. HIGHS 85 TO 95.
SUNDAY
PARTLY CLOUDY. LOWS 61 TO 71. HIGHS 86 TO 96.
NOTE TO USERS - ZONE 150 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE TUCSON INTERNATIONAL AIRPORT
LOCATION (2550 MSL)
AZZ151-272300-
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-
217 AM MST MON APR 27 2026
TODAY
* SKY/WEATHER..............MOSTLY SUNNY (15-25 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........71 TO 81 DEGS.
24 HR TREND...........UP 3 TO 7 DEGS.
* MIN HUMIDITY.............9 TO 19 PCT.
24 HR TREND...........DOWN 6 TO 10 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHEAST AROUND 10 MPH SHIFTING TO THE
SOUTHWEST IN THE AFTERNOON.
* 10000 FT MSL WIND........SOUTHWEST 25 TO 30 MPH.
* MIXING HEIGHT............7243 FT AGL.
* TRANSPORT WINDS..........SOUTH 10 KNOTS INCREASING TO SOUTHWEST
22 KNOTS IN THE AFTERNOON.
* VENTILATION CATEGORY.....EXCELLENT (159346 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLEAR (15-25 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........40 TO 50 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MAX HUMIDITY.............43 TO 53 PCT.
24 HR TREND...........DOWN 16 TO 20 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTHWEST 30 TO 35 MPH.
TUESDAY
* 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..........76 TO 86 DEGS.
24 HR TREND...........UP 3 TO 6 DEGS.
* MIN HUMIDITY.............7 TO 13 PCT.
24 HR TREND...........DOWN 4 TO 8 PCT.
* WIND (20 FT/10-MIN AVG)..LIGHT WINDS BECOMING WEST AROUND 15 MPH
IN THE AFTERNOON.
* 10000 FT MSL WIND........SOUTHWEST AROUND 30 MPH DECREASING TO
AROUND 20 MPH IN THE AFTERNOON.
* MIXING HEIGHT............7251 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 9 TO 17 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (123267 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
WEDNESDAY
MOSTLY CLOUDY. LOWS 50 TO 60. HIGHS 75 TO 85.
SOUTHWEST WIND AROUND 15 MPH. MINIMUM HUMIDITY 10 TO 17 PCT.
THURSDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS 51 TO 61. HIGHS 69 TO 79. SOUTHWEST WIND
AROUND 20 MPH. MINIMUM HUMIDITY 31 TO 41 PCT.
FRIDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 44 TO 54. HIGHS 70 TO 80. WEST WIND AROUND
15 MPH. MINIMUM HUMIDITY 23 TO 33 PCT.
SATURDAY
MOSTLY CLEAR. LOWS 47 TO 57. HIGHS 76 TO 86.
SUNDAY
PARTLY CLOUDY. LOWS 53 TO 63. HIGHS 79 TO 89.
NOTE TO USERS - ZONE 151 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE BUENOS AIRES N.W.R. LOCATION
(3500 MSL)
AZZ152-272300-
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-
217 AM MST MON APR 27 2026
TODAY
* SKY/WEATHER..............MOSTLY SUNNY (15-25 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.............10 TO 20 PCT.
24 HR TREND...........DOWN 3 TO 7 PCT.
* WIND (20 FT/10-MIN AVG)..WEST 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTHWEST 25 TO 30 MPH.
* MIXING HEIGHT............9287 FT AGL.
* TRANSPORT WINDS..........WEST 11 KNOTS INCREASING TO SOUTHWEST 24
KNOTS IN THE AFTERNOON.
* VENTILATION CATEGORY.....EXCELLENT (222888 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLEAR (20-30 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........40 TO 50 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MAX HUMIDITY.............39 TO 49 PCT.
24 HR TREND...........DOWN 14 TO 18 PCT.
* WIND (20 FT/10-MIN AVG)..WEST 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTHWEST AROUND 25 MPH INCREASING TO
AROUND 35 MPH AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER..............MOSTLY SUNNY (10-20 PCT) THEN BECOMING
PARTLY CLOUDY (25-35 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........76 TO 86 DEGS.
24 HR TREND...........UP 3 TO 7 DEGS.
* MIN HUMIDITY.............6 TO 14 PCT.
24 HR TREND...........LITTLE CHANGE.
* WIND (20 FT/10-MIN AVG)..LIGHT WINDS BECOMING WEST AROUND 15 MPH
IN THE AFTERNOON.
* 10000 FT MSL WIND........SOUTHWEST AROUND 30 MPH DECREASING TO
AROUND 20 MPH IN THE AFTERNOON.
* MIXING HEIGHT............9398 FT AGL.
* TRANSPORT WINDS..........WEST 10 TO 19 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (178562 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
WEDNESDAY
MOSTLY CLOUDY. LOWS 49 TO 59. HIGHS 75 TO 85. WEST
WIND AROUND 15 MPH. MINIMUM HUMIDITY 9 TO 15 PCT.
THURSDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS 50 TO 60. HIGHS 68 TO 78. SOUTHWEST WIND
AROUND 20 MPH. MINIMUM HUMIDITY 33 TO 43 PCT.
FRIDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 43 TO 53. HIGHS 69 TO 79. WEST WIND AROUND
15 MPH. MINIMUM HUMIDITY 24 TO 34 PCT.
SATURDAY
MOSTLY CLEAR. LOWS 45 TO 55. HIGHS 73 TO 83.
SUNDAY
PARTLY CLOUDY. LOWS 50 TO 60. 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)
AZZ153-272300-
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-
217 AM MST MON APR 27 2026
TODAY
* SKY/WEATHER..............SUNNY (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........60 TO 70 DEGS.
24 HR TREND...........UP 2 TO 5 DEGS.
* MIN HUMIDITY.............11 TO 20 PCT.
24 HR TREND...........DOWN 11 TO 15 PCT.
* WIND (20 FT/10-MIN AVG)..WEST 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTHWEST 20 TO 25 MPH.
* MIXING HEIGHT............7060 FT AGL.
* TRANSPORT WINDS..........WEST 16 TO 25 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (176500 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLEAR (5-15 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........34 TO 44 DEGS.
24 HR TREND...........UP 1 TO 4 DEGS.
* MAX HUMIDITY.............46 TO 56 PCT.
24 HR TREND...........DOWN 18 TO 22 PCT.
* WIND (20 FT/10-MIN AVG)..WEST 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTHWEST 25 TO 30 MPH.
TUESDAY
* SKY/WEATHER..............MOSTLY SUNNY (15-25 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........65 TO 75 DEGS.
24 HR TREND...........UP 3 TO 6 DEGS.
* MIN HUMIDITY.............6 TO 12 PCT.
24 HR TREND...........DOWN 4 TO 8 PCT.
* WIND (20 FT/10-MIN AVG)..WEST 10 TO 15 MPH.
* 10000 FT MSL WIND........WEST 20 TO 25 MPH.
* MIXING HEIGHT............7113 FT AGL.
* TRANSPORT WINDS..........WEST 16 TO 22 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (156486 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
WEDNESDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS 41 TO
51. HIGHS 64 TO 74. LIGHT WINDS. MINIMUM HUMIDITY 9 TO 14 PCT.
THURSDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS 42 TO 52. HIGHS 56 TO 66. WEST WIND AROUND
15 MPH. MINIMUM HUMIDITY 42 TO 52 PCT.
FRIDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS 38 TO 48. HIGHS 56 TO 66. WEST WIND AROUND
15 MPH. MINIMUM HUMIDITY 35 TO 45 PCT.
SATURDAY
MOSTLY CLEAR. LOWS 38 TO 48. HIGHS 62 TO 72.
SUNDAY
PARTLY CLOUDY. LOWS 44 TO 54. HIGHS 64 TO 74.
NOTE TO USERS - ZONE 153 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE POINT OF PINES LOCATION (6040 MSL)
AZZ154-272300-
ARIZONA FIRE WEATHER ZONE 154
FOREST WOODLANDS FDRA INCLUDING THE SKY ISLANDS OF SOUTHEAST
ARIZONA ABOVE 5500 FEET-CORONADO NF-TDC-
217 AM MST MON APR 27 2026
TODAY
* SKY/WEATHER..............MOSTLY SUNNY (15-25 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........63 TO 73 DEGS.
24 HR TREND...........UP 2 TO 5 DEGS.
* MIN HUMIDITY.............11 TO 21 PCT.
24 HR TREND...........DOWN 3 TO 7 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST AROUND 10 MPH INCREASING TO
AROUND 20 MPH IN THE AFTERNOON.
* 10000 FT MSL WIND........SOUTHWEST 25 TO 30 MPH.
* MIXING HEIGHT............9158 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 14 KNOTS INCREASING TO 25
KNOTS IN THE AFTERNOON.
* VENTILATION CATEGORY.....EXCELLENT (228950 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLEAR (15-25 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........38 TO 48 DEGS.
24 HR TREND...........UP 2 TO 5 DEGS.
* MAX HUMIDITY.............36 TO 46 PCT.
24 HR TREND...........DOWN 16 TO 20 PCT.
* WIND (20 FT/10-MIN AVG)..WEST AROUND 20 MPH DECREASING TO AROUND
10 MPH AFTER MIDNIGHT.
* 10000 FT MSL WIND........SOUTHWEST 30 TO 35 MPH.
TUESDAY
* SKY/WEATHER..............MOSTLY SUNNY (10-20 PCT) THEN BECOMING
PARTLY CLOUDY (25-35 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........67 TO 77 DEGS.
24 HR TREND...........UP 4 TO 8 DEGS.
* MIN HUMIDITY.............7 TO 16 PCT.
24 HR TREND...........DOWN 1 PCT.
* WIND (20 FT/10-MIN AVG)..WEST 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTHWEST AROUND 30 MPH DECREASING TO
AROUND 20 MPH IN THE AFTERNOON.
* MIXING HEIGHT............9777 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 13 TO 20 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (161320 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
WEDNESDAY
MOSTLY CLOUDY. LOWS 47 TO 57. HIGHS 66 TO 76.
SOUTHWEST WIND AROUND 15 MPH. MINIMUM HUMIDITY 11 TO 16 PCT.
THURSDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS 48 TO 58. HIGHS 59 TO 69. SOUTHWEST WIND
AROUND 20 MPH. MINIMUM HUMIDITY 38 TO 48 PCT.
FRIDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 40 TO 50. HIGHS 60 TO 70. WEST WIND AROUND
15 MPH. MINIMUM HUMIDITY 32 TO 42 PCT.
SATURDAY
MOSTLY CLEAR. LOWS 42 TO 52. HIGHS 64 TO 74.
SUNDAY
PARTLY CLOUDY. LOWS 48 TO 58. HIGHS 68 TO 78.
NOTE TO USERS - ZONE 154 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE AVERAGE ACROSS THE ZONE
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