789
FNUS55 KTWC 070937
FWFTWC
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST ARIZONA
NATIONAL WEATHER SERVICE TUCSON AZ
237 AM MST WED OCT 7 2026
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
20-FOOT WIND FORECAST OF 'LIGHT WINDS' INDICATES MAINLY
TERRAIN DRIVEN WINDS
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
DISCUSSION
WINDS WILL BE LESS THAN 15 MPH AND TERRAIN
DRIVEN TODAY. MINIMUM RELATIVE HUMIDITY VALUES WILL REMAIN
15-30 PERCENT IN LOWER ELEVATIONS AND ABOVE 40 PERCENT IN HIGH
ELEVATION TERRAIN THROUGH SATURDAY. THERE IS A SLIGHT CHANCE
FOR STORMS OVER THE WHITE MOUNTAINS THIS AFTERNOON AND THURSDAY
AFTERNOON. BREEZY EASTERLY WINDS RETURN THURSDAY INTO SATURDAY
WITH THE STRONGEST WINDS IN THE GILA RIVER VALLEY FRIDAY. A
WEATHER SYSTEM WILL BEGIN TO MOVE IN THIS WEEKEND BRINGING A
30-60 PERCENT CHANCE FOR RAIN SATURDAY INTO EARLY NEXT WEEK.
THIS SYSTEM WILL ALSO BRING BREEZY SOUTHWEST WINDS SUNDAY AND
MONDAY.
AZZ150-072215-
ARIZONA FIRE WEATHER ZONE 150
SONORAN FDRA-MOST OF PIMA COUNTY-SOUTH CENTRAL PINAL COUNTY-
TOHONO O'ODHAM NATION-TUCSON METROPOLITAN AREA-TDC-
237 AM MST WED OCT 7 2026
TODAY
* SKY/WEATHER..............MOSTLY SUNNY (5-15 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........91 TO 101 DEGS.
24 HR TREND...........UP 1 TO 4 DEGS.
* MIN HUMIDITY.............17 TO 27 PCT.
24 HR TREND...........DOWN 3 TO 6 PCT.
* WIND (20 FT/10-MIN AVG)..EAST AROUND 10 MPH SHIFTING TO THE NORTH
IN THE AFTERNOON.
* 10000 FT MSL WIND........NORTHWEST 5 TO 10 MPH.
* MIXING HEIGHT............8149 FT AGL.
* TRANSPORT WINDS..........EAST 8 KNOTS SHIFTING TO THE NORTH IN
THE AFTERNOON.
* VENTILATION CATEGORY.....GOOD (65192 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLEAR (10-20 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........68 TO 78 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MAX HUMIDITY.............40 TO 50 PCT.
24 HR TREND...........DOWN 3 TO 7 PCT.
* WIND (20 FT/10-MIN AVG)..NORTH AROUND 10 MPH SHIFTING TO THE EAST
AFTER MIDNIGHT.
* 10000 FT MSL WIND........NORTH AROUND 5 MPH SHIFTING TO THE
SOUTHEAST AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER..............MOSTLY SUNNY (15-25 PCT) THEN BECOMING
PARTLY CLOUDY (30-40 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........92 TO 102 DEGS.
24 HR TREND...........UP 1 DEG.
* MIN HUMIDITY.............14 TO 24 PCT.
24 HR TREND...........DOWN 3 TO 7 PCT.
* WIND (20 FT/10-MIN AVG)..EAST AROUND 10 MPH.
* 10000 FT MSL WIND........EAST 5 TO 10 MPH.
* MIXING HEIGHT............11214 FT AGL.
* TRANSPORT WINDS..........EAST 8 TO 9 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (100926 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
FRIDAY
MOSTLY CLEAR. LOWS 69 TO 79. HIGHS 91 TO 101. SOUTHEAST
WIND AROUND 20 MPH. MINIMUM HUMIDITY 15 TO 25 PCT.
SATURDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 68 TO 78. HIGHS 86 TO 96. SOUTH WIND AROUND
15 MPH. MINIMUM HUMIDITY 22 TO 32 PCT.
SUNDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS 64 TO 74. HIGHS 79 TO 89. SOUTH WIND AROUND
25 MPH. MINIMUM HUMIDITY 38 TO 48 PCT.
COLUMBUS DAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 60 TO 70. HIGHS 73 TO 83.
TUESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS. LOWS 56 TO 66. HIGHS
71 TO 81.
NOTE TO USERS - ZONE 150 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE TUCSON INTERNATIONAL AIRPORT
LOCATION (2550 MSL)
AZZ151-072215-
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-
237 AM MST WED OCT 7 2026
TODAY
* SKY/WEATHER..............MOSTLY SUNNY (10-20 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........84 TO 94 DEGS.
24 HR TREND...........UP 2 TO 5 DEGS.
* MIN HUMIDITY.............22 TO 32 PCT.
24 HR TREND...........DOWN 3 TO 7 PCT.
* WIND (20 FT/10-MIN AVG)..EAST AROUND 10 MPH SHIFTING TO THE
NORTHEAST IN THE AFTERNOON.
* 10000 FT MSL WIND........NORTHWEST 5 TO 10 MPH.
* MIXING HEIGHT............8150 FT AGL.
* TRANSPORT WINDS..........EAST 8 KNOTS SHIFTING TO THE NORTHEAST 7
KNOTS IN THE AFTERNOON.
* VENTILATION CATEGORY.....GOOD (57050 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLEAR (15-25 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........60 TO 70 DEGS.
24 HR TREND...........UP 1 DEG.
* MAX HUMIDITY.............54 TO 64 PCT.
24 HR TREND...........DOWN 3 TO 6 PCT.
* WIND (20 FT/10-MIN AVG)..NORTHEAST AROUND 10 MPH SHIFTING TO THE
EAST AFTER MIDNIGHT.
* 10000 FT MSL WIND........NORTH 5 TO 10 MPH.
THURSDAY
* SKY/WEATHER..............MOSTLY SUNNY (10-20 PCT) THEN BECOMING
PARTLY CLOUDY (30-40 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........84 TO 94 DEGS.
24 HR TREND...........DOWN 1 DEG.
* MIN HUMIDITY.............20 TO 30 PCT.
24 HR TREND...........DOWN 1 TO 4 PCT.
* WIND (20 FT/10-MIN AVG)..EAST AROUND 10 MPH.
* 10000 FT MSL WIND........NORTHEAST 5 TO 10 MPH.
* MIXING HEIGHT............12279 FT AGL.
* TRANSPORT WINDS..........EAST 10 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (122790 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
FRIDAY
MOSTLY CLEAR. LOWS 60 TO 70. HIGHS 82 TO 92. EAST WIND
AROUND 20 MPH. MINIMUM HUMIDITY 20 TO 30 PCT.
SATURDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS 61 TO 71. HIGHS 79 TO 89. SOUTHEAST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 27 TO 37 PCT.
SUNDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS 57 TO 67. HIGHS 75 TO 85. SOUTH WIND AROUND
25 MPH. MINIMUM HUMIDITY 41 TO 51 PCT.
COLUMBUS DAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 55 TO 65. HIGHS 70 TO 80.
TUESDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS 51 TO 61. HIGHS 68 TO 78.
NOTE TO USERS - ZONE 151 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE BUENOS AIRES N.W.R. LOCATION
(3500 MSL)
AZZ152-072215-
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-
237 AM MST WED OCT 7 2026
TODAY
* SKY/WEATHER..............MOSTLY SUNNY (20-30 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........82 TO 92 DEGS.
24 HR TREND...........UP 2 TO 5 DEGS.
* MIN HUMIDITY.............23 TO 33 PCT.
24 HR TREND...........DOWN 7 TO 11 PCT.
* WIND (20 FT/10-MIN AVG)..EAST AROUND 10 MPH.
* 10000 FT MSL WIND........NORTHEAST 5 TO 10 MPH.
* MIXING HEIGHT............6021 FT AGL.
* TRANSPORT WINDS..........EAST 8 KNOTS.
* VENTILATION CATEGORY.....GOOD (48168 KNOT-FT).
TONIGHT
* SKY/WEATHER..............PARTLY CLOUDY (25-35 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........57 TO 67 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MAX HUMIDITY.............58 TO 68 PCT.
24 HR TREND...........DOWN 3 TO 6 PCT.
* WIND (20 FT/10-MIN AVG)..EAST AROUND 10 MPH.
* 10000 FT MSL WIND........NORTH 5 TO 10 MPH.
THURSDAY
* 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..........81 TO 91 DEGS.
24 HR TREND...........DOWN 1 DEG.
* MIN HUMIDITY.............21 TO 31 PCT.
24 HR TREND...........DOWN 1 PCT.
* WIND (20 FT/10-MIN AVG)..EAST 10 TO 15 MPH.
* 10000 FT MSL WIND........NORTHEAST 5 TO 10 MPH.
* MIXING HEIGHT............8181 FT AGL.
* TRANSPORT WINDS..........EAST 12 KNOTS.
* VENTILATION CATEGORY.....VERY GOOD (98172 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
FRIDAY
MOSTLY CLEAR. LOWS 57 TO 67. HIGHS 80 TO 90. EAST WIND
AROUND 20 MPH. MINIMUM HUMIDITY 20 TO 30 PCT.
SATURDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS 58 TO 68. HIGHS 78 TO 88. SOUTHEAST WIND
AROUND 20 MPH. MINIMUM HUMIDITY 25 TO 35 PCT.
SUNDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS 57 TO 67. HIGHS 75 TO 85. SOUTH WIND AROUND
20 MPH. MINIMUM HUMIDITY 37 TO 47 PCT.
COLUMBUS DAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 55 TO 65. HIGHS 71 TO 81.
TUESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS 53 TO 63. HIGHS 69 TO 79.
NOTE TO USERS - ZONE 152 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE CHIRICAHUA N.M. LOCATION (5400 MSL)
AZZ153-072215-
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-
237 AM MST WED OCT 7 2026
TODAY
* SKY/WEATHER..............MOSTLY SUNNY (5-15 PCT) THEN BECOMING
PARTLY CLOUDY (30-40 PCT). SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS.
* CHANCE OF PRECIP.........10 PCT.
* CHANCE OF THUNDER........10 PCT.
* MAX TEMPERATURE..........71 TO 81 DEGS.
24 HR TREND...........UP 1 TO 4 DEGS.
* MIN HUMIDITY.............28 TO 38 PCT.
24 HR TREND...........DOWN 2 TO 5 PCT.
* WIND (20 FT/10-MIN AVG)..EAST AROUND 10 MPH IN THE MORNING
BECOMING LIGHT.
* 10000 FT MSL WIND........NORTHEAST AROUND 5 MPH SHIFTING TO THE
NORTH IN THE AFTERNOON.
* MIXING HEIGHT............8294 FT AGL.
* TRANSPORT WINDS..........NORTHEAST 7 KNOTS.
* VENTILATION CATEGORY.....GOOD (58058 KNOT-FT).
TONIGHT
* SKY/WEATHER..............PARTLY CLOUDY (35-45 PCT).
* CHANCE OF PRECIP.........10 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........49 TO 59 DEGS.
24 HR TREND...........DOWN 3 TO 6 DEGS.
* MAX HUMIDITY.............60 TO 70 PCT.
24 HR TREND...........DOWN 3 TO 6 PCT.
* WIND (20 FT/10-MIN AVG)..NORTHEAST AROUND 10 MPH.
* 10000 FT MSL WIND........NORTH 5 TO 10 MPH.
THURSDAY
* SKY/WEATHER..............MOSTLY SUNNY (10-20 PCT) THEN BECOMING
PARTLY CLOUDY (25-35 PCT).
* CHANCE OF PRECIP.........10 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........70 TO 80 DEGS.
24 HR TREND...........DOWN 1 TO 4 DEGS.
* MIN HUMIDITY.............31 TO 41 PCT.
24 HR TREND...........DOWN 1 PCT.
* WIND (20 FT/10-MIN AVG)..EAST AROUND 10 MPH SHIFTING TO THE
SOUTHEAST IN THE AFTERNOON.
* 10000 FT MSL WIND........NORTHEAST AROUND 5 MPH SHIFTING TO THE
SOUTHEAST IN THE AFTERNOON.
* MIXING HEIGHT............8286 FT AGL.
* TRANSPORT WINDS..........EAST 9 KNOTS.
* VENTILATION CATEGORY.....VERY GOOD (74574 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
FRIDAY
MOSTLY CLEAR. LOWS 49 TO 59. HIGHS 67 TO 77. SOUTHEAST
WIND AROUND 15 MPH. MINIMUM HUMIDITY 30 TO 40 PCT.
SATURDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS 49 TO 59. HIGHS 65 TO 75. SOUTHEAST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 37 TO 47 PCT.
SUNDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS 49 TO 59. HIGHS 62 TO 72. SOUTHEAST WIND AROUND 15 MPH.
MINIMUM HUMIDITY 49 TO 59 PCT.
COLUMBUS DAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 47 TO 57. HIGHS 59 TO 69.
TUESDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS 45 TO 55. HIGHS 58 TO 68.
NOTE TO USERS - ZONE 153 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE POINT OF PINES LOCATION (6040 MSL)
AZZ154-072215-
ARIZONA FIRE WEATHER ZONE 154
FOREST WOODLANDS FDRA INCLUDING THE SKY ISLANDS OF SOUTHEAST
ARIZONA ABOVE 5500 FEET-CORONADO NF-TDC-
237 AM MST WED OCT 7 2026
TODAY
* SKY/WEATHER..............MOSTLY SUNNY (10-20 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.............32 TO 42 PCT.
24 HR TREND...........DOWN 4 TO 8 PCT.
* WIND (20 FT/10-MIN AVG)..EAST AROUND 10 MPH.
* 10000 FT MSL WIND........NORTH 5 TO 10 MPH.
* MIXING HEIGHT............8384 FT AGL.
* TRANSPORT WINDS..........EAST 8 TO 9 KNOTS.
* VENTILATION CATEGORY.....VERY GOOD (71264 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLEAR (15-25 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........54 TO 64 DEGS.
24 HR TREND...........UP 1 TO 4 DEGS.
* MAX HUMIDITY.............53 TO 63 PCT.
24 HR TREND...........DOWN 5 TO 9 PCT.
* WIND (20 FT/10-MIN AVG)..EAST AROUND 10 MPH.
* 10000 FT MSL WIND........NORTH 5 TO 10 MPH.
THURSDAY
* 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..........71 TO 81 DEGS.
24 HR TREND...........DOWN 1 DEG.
* MIN HUMIDITY.............30 TO 40 PCT.
24 HR TREND...........DOWN 2 TO 5 PCT.
* WIND (20 FT/10-MIN AVG)..EAST AROUND 10 MPH.
* 10000 FT MSL WIND........NORTHEAST 5 TO 10 MPH.
* MIXING HEIGHT............11474 FT AGL.
* TRANSPORT WINDS..........EAST 12 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (137688 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
FRIDAY
MOSTLY CLEAR. LOWS 53 TO 63. HIGHS 70 TO 80. EAST WIND
AROUND 20 MPH. MINIMUM HUMIDITY 27 TO 37 PCT.
SATURDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS 54 TO 64. HIGHS 68 TO 78. SOUTHEAST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 33 TO 43 PCT.
SUNDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS 52 TO 62. HIGHS 64 TO 74. SOUTH WIND AROUND
20 MPH. MINIMUM HUMIDITY 48 TO 58 PCT.
COLUMBUS DAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 50 TO 60. HIGHS 60 TO 70.
TUESDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS 47 TO 57. HIGHS 58 TO 68.
NOTE TO USERS - ZONE 154 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE AVERAGE ACROSS THE ZONE
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