680
FNUS55 KTWC 260727
FWFTWC
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST ARIZONA
NATIONAL WEATHER SERVICE TUCSON AZ
1227 AM MST TUE MAY 26 2026
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
20-FOOT WIND FORECAST OF 'LIGHT WINDS' INDICATES MAINLY
TERRAIN DRIVEN WINDS
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
DISCUSSION
WARM WITH DRY CONDITIONS ACROSS SOUTHEAST ARIZONA
INTO EARLY NEXT WEEK. AN ABNORMALLY COOL UPPER-LOW WILL MAKE
ITS WAY INTO CENTRAL CALIFORNIA THE MIDDLE OF THIS WEEK,
RESULTING IN BELOW NORMAL ACROSS SOUTHEAST ARIZONA WEDNESDAY
AND THURSDAY. THIS SYSTEM WILL ALSO BRING BREEZY TO LOCALLY
WINDY 20-FOOT WINDS FROM THE SOUTHWEST 15 TO 20 MPH WITH GUSTS
TO 35 MPH. THIS WILL RESULT IN ELEVATED TO NEAR-CRITICAL FIRE
WEATHER CONDITIONS WEDNESDAY AND THURSDAY, ESPECIALLY ACROSS
THE EASTERN PORTIONS OF FIRE WEATHER ZONE 150 AND ZONE 151. MIN
RH VALUES WILL BE IN THE 7-18 PERCENT RANGE IN THE VALLEYS AND
IN THE 14-20 PERCENT RANGE IN THE MOUNTAINS THROUGH NEXT WEEK.
AZZ150-262215-
ARIZONA FIRE WEATHER ZONE 150
SONORAN FDRA-MOST OF PIMA COUNTY-SOUTH CENTRAL PINAL COUNTY-
TOHONO O'ODHAM NATION-TUCSON METROPOLITAN AREA-TDC-
1227 AM MST TUE MAY 26 2026
TODAY
* SKY/WEATHER..............SUNNY (0-5 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........85 TO 95 DEGS.
24 HR TREND...........DOWN 1 TO 4 DEGS.
* MIN HUMIDITY.............8 TO 18 PCT.
24 HR TREND...........LITTLE CHANGE.
* WIND (20 FT/10-MIN AVG)..SOUTH 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTH 10 TO 15 MPH.
* MIXING HEIGHT............11421 FT AGL.
* TRANSPORT WINDS..........SOUTH 13 TO 15 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (171315 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLEAR (10-20 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........56 TO 66 DEGS.
24 HR TREND...........DOWN 1 TO 4 DEGS.
* MAX HUMIDITY.............37 TO 47 PCT.
24 HR TREND...........UP 1 TO 4 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTH 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTH 15 TO 20 MPH.
WEDNESDAY
* SKY/WEATHER..............MOSTLY SUNNY (10-20 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........82 TO 92 DEGS.
24 HR TREND...........DOWN 1 TO 4 DEGS.
* MIN HUMIDITY.............16 TO 26 PCT.
24 HR TREND...........UP 1 TO 4 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTH 10 TO 20 MPH.
* 10000 FT MSL WIND........SOUTH 20 TO 25 MPH.
* MIXING HEIGHT............9232 FT AGL.
* TRANSPORT WINDS..........SOUTH 21 TO 22 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (203104 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
THURSDAY
MOSTLY CLEAR. LOWS 53 TO 63. HIGHS 83 TO 93. SOUTH
WIND AROUND 20 MPH. MINIMUM HUMIDITY 12 TO 22 PCT.
FRIDAY
CLEAR. LOWS 52 TO 62. HIGHS 83 TO 93. SOUTHWEST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 10 TO 20 PCT.
SATURDAY
CLEAR. LOWS 55 TO 65. HIGHS 86 TO 96. LIGHT WINDS.
MINIMUM HUMIDITY 9 TO 15 PCT.
SUNDAY
CLEAR. LOWS 58 TO 68. HIGHS 91 TO 101.
MONDAY
MOSTLY CLEAR. LOWS 61 TO 71. HIGHS 95 TO 105.
NOTE TO USERS - ZONE 150 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE TUCSON INTERNATIONAL AIRPORT
LOCATION (2550 MSL)
AZZ151-262215-
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-
1227 AM MST TUE MAY 26 2026
TODAY
* SKY/WEATHER..............SUNNY (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........81 TO 91 DEGS.
24 HR TREND...........DOWN 1 DEG.
* MIN HUMIDITY.............8 TO 13 PCT.
24 HR TREND...........DOWN 1 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTH 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTH 10 TO 15 MPH.
* MIXING HEIGHT............8758 FT AGL.
* TRANSPORT WINDS..........SOUTH 11 TO 15 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (131370 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLEAR (10-20 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........50 TO 60 DEGS.
24 HR TREND...........DOWN 1 DEG.
* MAX HUMIDITY.............31 TO 41 PCT.
24 HR TREND...........LITTLE CHANGE.
* WIND (20 FT/10-MIN AVG)..SOUTH 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTH 15 TO 20 MPH.
WEDNESDAY
* SKY/WEATHER..............SUNNY (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........81 TO 91 DEGS.
24 HR TREND...........DOWN 1 DEG.
* MIN HUMIDITY.............9 TO 19 PCT.
24 HR TREND...........LITTLE CHANGE.
* WIND (20 FT/10-MIN AVG)..BREEZY. SOUTH 15 TO 25 MPH.
* 10000 FT MSL WIND........SOUTHWEST 20 TO 25 MPH.
* MIXING HEIGHT............6686 FT AGL.
* TRANSPORT WINDS..........SOUTH 20 TO 21 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (140406 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
THURSDAY
MOSTLY CLEAR. LOWS 50 TO 60. HIGHS 81 TO 91. SOUTH
WIND AROUND 20 MPH. MINIMUM HUMIDITY 7 TO 17 PCT.
FRIDAY
CLEAR. LOWS 50 TO 60. HIGHS 80 TO 90. SOUTHWEST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 10 TO 17 PCT.
SATURDAY
CLEAR. LOWS 50 TO 60. HIGHS 82 TO 92. WEST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 10 TO 16 PCT.
SUNDAY
CLEAR. LOWS 52 TO 62. HIGHS 86 TO 96.
MONDAY
MOSTLY CLEAR. LOWS 55 TO 65. HIGHS 88 TO 98.
NOTE TO USERS - ZONE 151 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE BUENOS AIRES N.W.R. LOCATION
(3500 MSL)
AZZ152-262215-
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-
1227 AM MST TUE MAY 26 2026
TODAY
* SKY/WEATHER..............MOSTLY SUNNY (10-20 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........81 TO 91 DEGS.
24 HR TREND...........DOWN 1 DEG.
* MIN HUMIDITY.............7 TO 14 PCT.
24 HR TREND...........DOWN 3 TO 6 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTH 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTH AROUND 5 MPH INCREASING TO
SOUTHWEST AROUND 15 MPH IN THE
AFTERNOON.
* MIXING HEIGHT............10319 FT AGL.
* TRANSPORT WINDS..........SOUTH 10 TO 15 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (154785 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLEAR (10-20 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........51 TO 61 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MAX HUMIDITY.............29 TO 39 PCT.
24 HR TREND...........DOWN 8 TO 12 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTHWEST 15 TO 20 MPH.
WEDNESDAY
* SKY/WEATHER..............MOSTLY SUNNY (5-15 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........82 TO 92 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MIN HUMIDITY.............6 TO 12 PCT.
24 HR TREND...........UP 1 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTH 15 TO 20 MPH.
* 10000 FT MSL WIND........SOUTH 15 TO 20 MPH.
* MIXING HEIGHT............9122 FT AGL.
* TRANSPORT WINDS..........SOUTH 17 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (155074 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
THURSDAY
MOSTLY CLEAR. LOWS 52 TO 62. HIGHS 83 TO 93. SOUTH
WIND AROUND 20 MPH. MINIMUM HUMIDITY 5 TO 11 PCT.
FRIDAY
MOSTLY CLEAR. LOWS 52 TO 62. HIGHS 82 TO 92. SOUTHWEST
WIND AROUND 20 MPH. MINIMUM HUMIDITY 8 TO 16 PCT.
SATURDAY
CLEAR. LOWS 51 TO 61. HIGHS 82 TO 92. WEST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 8 TO 15 PCT.
SUNDAY
CLEAR. LOWS 52 TO 62. HIGHS 86 TO 96.
MONDAY
MOSTLY CLEAR. LOWS 55 TO 65. HIGHS 88 TO 98.
NOTE TO USERS - ZONE 152 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE CHIRICAHUA N.M. LOCATION (5400 MSL)
AZZ153-262215-
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-
1227 AM MST TUE MAY 26 2026
TODAY
* SKY/WEATHER..............MOSTLY SUNNY (15-25 PCT) THEN BECOMING
PARTLY CLOUDY (25-35 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........69 TO 79 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MIN HUMIDITY.............13 TO 23 PCT.
24 HR TREND...........DOWN 7 TO 11 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHEAST AROUND 10 MPH SHIFTING TO THE
SOUTHWEST IN THE AFTERNOON.
* 10000 FT MSL WIND........SOUTHWEST AROUND 5 MPH INCREASING TO
AROUND 15 MPH IN THE AFTERNOON.
* MIXING HEIGHT............10456 FT AGL.
* TRANSPORT WINDS..........SOUTHEAST 10 KNOTS SHIFTING TO THE
SOUTHWEST 13 KNOTS IN THE AFTERNOON.
* VENTILATION CATEGORY.....EXCELLENT (135928 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLEAR (20-30 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........44 TO 54 DEGS.
24 HR TREND...........DOWN 1 TO 4 DEGS.
* MAX HUMIDITY.............34 TO 44 PCT.
24 HR TREND...........DOWN 22 TO 26 PCT.
* WIND (20 FT/10-MIN AVG)..WEST 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTHWEST 20 TO 25 MPH.
WEDNESDAY
* SKY/WEATHER..............MOSTLY SUNNY (5-15 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........70 TO 80 DEGS.
24 HR TREND...........UP 1 TO 4 DEGS.
* MIN HUMIDITY.............7 TO 13 PCT.
24 HR TREND...........DOWN 3 TO 7 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTH 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTH 20 TO 25 MPH.
* MIXING HEIGHT............9173 FT AGL.
* TRANSPORT WINDS..........SOUTH 19 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (174287 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
THURSDAY
MOSTLY CLEAR. LOWS 45 TO 55. HIGHS 72 TO 82. SOUTH
WIND AROUND 15 MPH. MINIMUM HUMIDITY 7 TO 12 PCT.
FRIDAY
CLEAR. LOWS 45 TO 55. HIGHS 71 TO 81. WEST WIND AROUND
15 MPH. MINIMUM HUMIDITY 9 TO 18 PCT.
SATURDAY
CLEAR. LOWS 44 TO 54. HIGHS 72 TO 82. WEST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 9 TO 15 PCT.
SUNDAY
CLEAR. LOWS 46 TO 56. HIGHS 77 TO 87.
MONDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 48 TO 58. HIGHS 78 TO 88.
NOTE TO USERS - ZONE 153 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE POINT OF PINES LOCATION (6040 MSL)
AZZ154-262215-
ARIZONA FIRE WEATHER ZONE 154
FOREST WOODLANDS FDRA INCLUDING THE SKY ISLANDS OF SOUTHEAST
ARIZONA ABOVE 5500 FEET-CORONADO NF-TDC-
1227 AM MST TUE MAY 26 2026
TODAY
* SKY/WEATHER..............MOSTLY SUNNY (10-20 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........71 TO 81 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MIN HUMIDITY.............8 TO 18 PCT.
24 HR TREND...........DOWN 2 TO 5 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTH 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTH 5 TO 10 MPH.
* MIXING HEIGHT............11867 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 10 TO 14 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (142404 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLEAR (10-20 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........47 TO 57 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MAX HUMIDITY.............30 TO 40 PCT.
24 HR TREND...........DOWN 1 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTHWEST 15 TO 20 MPH.
WEDNESDAY
* SKY/WEATHER..............MOSTLY SUNNY (5-15 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........71 TO 81 DEGS.
24 HR TREND...........DOWN 1 DEG.
* MIN HUMIDITY.............8 TO 18 PCT.
24 HR TREND...........UP 1 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTH 15 TO 20 MPH.
* 10000 FT MSL WIND........SOUTHWEST 15 TO 20 MPH.
* MIXING HEIGHT............10433 FT AGL.
* TRANSPORT WINDS..........SOUTH 18 TO 19 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (193010 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
THURSDAY
MOSTLY CLEAR. LOWS 48 TO 58. HIGHS 72 TO 82. SOUTH
WIND AROUND 20 MPH. MINIMUM HUMIDITY 7 TO 14 PCT.
FRIDAY
CLEAR. LOWS 48 TO 58. HIGHS 71 TO 81. SOUTHWEST WIND
AROUND 20 MPH. MINIMUM HUMIDITY 11 TO 21 PCT.
SATURDAY
CLEAR. LOWS 47 TO 57. HIGHS 72 TO 82. WEST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 10 TO 20 PCT.
SUNDAY
CLEAR. LOWS 49 TO 59. HIGHS 77 TO 87.
MONDAY
MOSTLY CLEAR. LOWS 52 TO 62. HIGHS 79 TO 89.
NOTE TO USERS - ZONE 154 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE AVERAGE ACROSS THE ZONE
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