802
FNUS55 KTWC 120801
FWFTWC
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST ARIZONA
NATIONAL WEATHER SERVICE TUCSON AZ
1258 AM MST FRI DEC 12 2025
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
20-FOOT WIND FORECAST OF 'LIGHT WINDS' INDICATES MAINLY
TERRAIN DRIVEN WINDS
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
DISCUSSION
DRY CONDITIONS ARE EXPECTED THROUGH THE END OF NEXT
WEEK, ALONG WITH HIGH TEMPERATURES 10-15 DEGREES ABOVE NORMAL. 20-
FOOT WINDS WILL GENERALLY BE 15 MPH OR LESS AND TERRAIN DRIVEN THE
NEXT SEVEN DAYS, EXCEPT SUNDAY INTO MONDAY WHEN EAST-SOUTHEAST WINDS
OF 10-15 MPH AND GUSTS TO 25-30 MPH ARE EXPECTED. MINIMUM RH VALUES
AT ALL ELEVATIONS WILL GENERALLY BE IN THE 15-25 PERCENT RANGE INTO
THE MIDDLE OF NEXT WEEK, WITH THE POTENTIAL FOR A SLIGHT INCREASE
INTO THE 20-35 PERCENT RANGE ACROSS EASTERN AREAS (COCHISE, GRAHAM
AND GREENLEE COUNTIES) ON MONDAY.
AZZ150-122215-
ARIZONA FIRE WEATHER ZONE 150
SONORAN FDRA-MOST OF PIMA COUNTY-SOUTH CENTRAL PINAL COUNTY-
TOHONO O'ODHAM NATION-TUCSON METROPOLITAN AREA-TDC-
1258 AM MST FRI DEC 12 2025
TODAY
* SKY/WEATHER..............MOSTLY SUNNY (5-15 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........73 TO 83 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MIN HUMIDITY.............17 TO 27 PCT.
24 HR TREND...........UP 2 TO 5 PCT.
* WIND (20 FT/10-MIN AVG)..EAST AROUND 10 MPH IN THE MORNING
BECOMING LIGHT.
* 10000 FT MSL WIND........NORTHEAST 5 TO 10 MPH.
* MIXING HEIGHT............2789 FT AGL.
* TRANSPORT WINDS..........EAST 6 KNOTS SHIFTING TO THE NORTH 4
KNOTS IN THE AFTERNOON.
* VENTILATION CATEGORY.....MARGINAL (11156 KNOT-FT).
TONIGHT
* SKY/WEATHER..............PARTLY CLOUDY (25-35 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........46 TO 56 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MAX HUMIDITY.............52 TO 62 PCT.
24 HR TREND...........UP 2 TO 5 PCT.
* WIND (20 FT/10-MIN AVG)..LIGHT WINDS BECOMING EAST AROUND 10 MPH
AFTER MIDNIGHT.
* 10000 FT MSL WIND........NORTHEAST AROUND 5 MPH IN THE EVENING
BECOMING LIGHT.
SATURDAY
* SKY/WEATHER..............PARTLY CLOUDY (25-35 PCT) THEN BECOMING
MOSTLY SUNNY (15-25 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........73 TO 83 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MIN HUMIDITY.............17 TO 27 PCT.
24 HR TREND...........LITTLE CHANGE.
* WIND (20 FT/10-MIN AVG)..EAST AROUND 10 MPH IN THE MORNING
BECOMING LIGHT.
* 10000 FT MSL WIND........NORTHWEST 5 TO 10 MPH.
* MIXING HEIGHT............2982 FT AGL.
* TRANSPORT WINDS..........EAST 6 KNOTS SHIFTING TO THE NORTHEAST 4
KNOTS IN THE AFTERNOON.
* VENTILATION CATEGORY.....MARGINAL (11928 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
SUNDAY
PARTLY CLOUDY. LOWS 46 TO 56. HIGHS 74 TO 84. LIGHT
WINDS. MINIMUM HUMIDITY 14 TO 24 PCT.
MONDAY
MOSTLY CLEAR. LOWS 46 TO 56. HIGHS 72 TO 82. LIGHT
WINDS. MINIMUM HUMIDITY 15 TO 25 PCT.
TUESDAY
CLEAR. LOWS 43 TO 53. HIGHS 72 TO 82. LIGHT WINDS.
MINIMUM HUMIDITY 13 TO 23 PCT.
WEDNESDAY
MOSTLY CLEAR. LOWS 44 TO 54. HIGHS 72 TO 82.
THURSDAY
MOSTLY CLEAR. LOWS 44 TO 54. HIGHS 72 TO 82.
NOTE TO USERS - ZONE 150 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE TUCSON INTERNATIONAL AIRPORT
LOCATION (2550 MSL)
AZZ151-122215-
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-
1258 AM MST FRI DEC 12 2025
TODAY
* SKY/WEATHER..............SUNNY (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........71 TO 81 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MIN HUMIDITY.............17 TO 27 PCT.
24 HR TREND...........UP 1 TO 4 PCT.
* WIND (20 FT/10-MIN AVG)..LIGHT WINDS.
* 10000 FT MSL WIND........NORTHEAST 5 TO 10 MPH.
* MIXING HEIGHT............3203 FT AGL.
* TRANSPORT WINDS..........EAST 6 KNOTS SHIFTING TO THE NORTHWEST 4
KNOTS IN THE AFTERNOON.
* VENTILATION CATEGORY.....MARGINAL (12812 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLEAR (20-30 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........42 TO 52 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MAX HUMIDITY.............48 TO 58 PCT.
24 HR TREND...........LITTLE CHANGE.
* WIND (20 FT/10-MIN AVG)..LIGHT WINDS.
* 10000 FT MSL WIND........NORTH AROUND 5 MPH SHIFTING TO THE
SOUTHWEST AFTER MIDNIGHT.
SATURDAY
* SKY/WEATHER..............PARTLY CLOUDY (25-35 PCT) THEN BECOMING
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.............16 TO 26 PCT.
24 HR TREND...........DOWN 1 PCT.
* WIND (20 FT/10-MIN AVG)..LIGHT WINDS.
* 10000 FT MSL WIND........NORTHWEST 5 TO 10 MPH.
* MIXING HEIGHT............3875 FT AGL.
* TRANSPORT WINDS..........SOUTHEAST 6 KNOTS SHIFTING TO THE
NORTHWEST 4 KNOTS IN THE AFTERNOON.
* VENTILATION CATEGORY.....MARGINAL (15500 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
SUNDAY
PARTLY CLOUDY. LOWS 42 TO 52. HIGHS 68 TO 78. EAST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 15 TO 25 PCT.
MONDAY
PARTLY CLOUDY. LOWS 40 TO 50. HIGHS 68 TO 78. EAST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 17 TO 27 PCT.
TUESDAY
CLEAR. LOWS 39 TO 49. HIGHS 69 TO 79. LIGHT WINDS.
MINIMUM HUMIDITY 13 TO 23 PCT.
WEDNESDAY
MOSTLY CLEAR. LOWS 40 TO 50. HIGHS 69 TO 79.
THURSDAY
MOSTLY CLEAR. LOWS 40 TO 50. HIGHS 69 TO 79.
NOTE TO USERS - ZONE 151 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE BUENOS AIRES N.W.R. LOCATION
(3500 MSL)
AZZ152-122215-
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-
1258 AM MST FRI DEC 12 2025
TODAY
* SKY/WEATHER..............SUNNY (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........67 TO 77 DEGS.
24 HR TREND...........UP 1 DEG.
* MIN HUMIDITY.............17 TO 27 PCT.
24 HR TREND...........DOWN 1 TO 4 PCT.
* WIND (20 FT/10-MIN AVG)..LIGHT WINDS.
* 10000 FT MSL WIND........NORTH 5 TO 10 MPH.
* MIXING HEIGHT............2844 FT AGL.
* TRANSPORT WINDS..........NORTHEAST 5 KNOTS SHIFTING TO THE
NORTHWEST 3 KNOTS IN THE AFTERNOON.
* VENTILATION CATEGORY.....MARGINAL (8532 KNOT-FT).
TONIGHT
* SKY/WEATHER..............PARTLY CLOUDY (25-35 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........39 TO 49 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MAX HUMIDITY.............48 TO 58 PCT.
24 HR TREND...........DOWN 1 TO 4 PCT.
* WIND (20 FT/10-MIN AVG)..LIGHT WINDS.
* 10000 FT MSL WIND........NORTHWEST 5 TO 10 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..........67 TO 77 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MIN HUMIDITY.............17 TO 27 PCT.
24 HR TREND...........DOWN 1 PCT.
* WIND (20 FT/10-MIN AVG)..LIGHT WINDS.
* 10000 FT MSL WIND........NORTHWEST 10 TO 15 MPH.
* MIXING HEIGHT............2931 FT AGL.
* TRANSPORT WINDS..........NORTHEAST 5 KNOTS SHIFTING TO THE
NORTHWEST 4 KNOTS IN THE AFTERNOON.
* VENTILATION CATEGORY.....MARGINAL (11724 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
SUNDAY
PARTLY CLOUDY. LOWS 39 TO 49. HIGHS 63 TO 73. EAST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 18 TO 28 PCT.
MONDAY
PARTLY CLOUDY. LOWS 36 TO 46. HIGHS 62 TO 72. EAST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 21 TO 31 PCT.
TUESDAY
CLEAR. LOWS 35 TO 45. HIGHS 65 TO 75. LIGHT WINDS.
MINIMUM HUMIDITY 13 TO 23 PCT.
WEDNESDAY
MOSTLY CLEAR. LOWS 37 TO 47. HIGHS 66 TO 76.
THURSDAY
MOSTLY CLEAR. LOWS 37 TO 47. HIGHS 66 TO 76.
NOTE TO USERS - ZONE 152 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE CHIRICAHUA N.M. LOCATION (5400 MSL)
AZZ153-122215-
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-
1258 AM MST FRI DEC 12 2025
TODAY
* SKY/WEATHER..............SUNNY (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........62 TO 72 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)..NORTHEAST AROUND 10 MPH IN THE MORNING
BECOMING LIGHT.
* 10000 FT MSL WIND........NORTHWEST 5 TO 10 MPH.
* MIXING HEIGHT............3176 FT AGL.
* TRANSPORT WINDS..........NORTHEAST 7 KNOTS SHIFTING TO THE WEST 4
KNOTS IN THE AFTERNOON.
* VENTILATION CATEGORY.....MARGINAL (12704 KNOT-FT).
TONIGHT
* SKY/WEATHER..............PARTLY CLOUDY (20-30 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........36 TO 46 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MAX HUMIDITY.............37 TO 47 PCT.
24 HR TREND...........DOWN 3 TO 7 PCT.
* WIND (20 FT/10-MIN AVG)..LIGHT WINDS.
* 10000 FT MSL WIND........NORTHWEST 5 TO 10 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..........61 TO 71 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MIN HUMIDITY.............14 TO 24 PCT.
24 HR TREND...........DOWN 1 PCT.
* WIND (20 FT/10-MIN AVG)..LIGHT WINDS.
* 10000 FT MSL WIND........NORTHWEST 10 TO 15 MPH.
* MIXING HEIGHT............4285 FT AGL.
* TRANSPORT WINDS..........NORTH 6 KNOTS SHIFTING TO THE NORTHWEST
7 KNOTS IN THE AFTERNOON.
* VENTILATION CATEGORY.....FAIR (29995 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
SUNDAY
PARTLY CLOUDY. LOWS 35 TO 45. HIGHS 56 TO 66. LIGHT
WINDS. MINIMUM HUMIDITY 16 TO 25 PCT.
MONDAY
MOSTLY CLEAR. LOWS 33 TO 43. HIGHS 57 TO 67. LIGHT
WINDS. MINIMUM HUMIDITY 17 TO 27 PCT.
TUESDAY
CLEAR. LOWS 30 TO 40. HIGHS 58 TO 68. LIGHT WINDS.
MINIMUM HUMIDITY 11 TO 21 PCT.
WEDNESDAY
MOSTLY CLEAR. LOWS 33 TO 43. HIGHS 58 TO 68.
THURSDAY
MOSTLY CLEAR. LOWS 33 TO 43. 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)
AZZ154-122215-
ARIZONA FIRE WEATHER ZONE 154
FOREST WOODLANDS FDRA INCLUDING THE SKY ISLANDS OF SOUTHEAST
ARIZONA ABOVE 5500 FEET-CORONADO NF-TDC-
1258 AM MST FRI DEC 12 2025
TODAY
* SKY/WEATHER..............SUNNY (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........61 TO 71 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MIN HUMIDITY.............18 TO 28 PCT.
24 HR TREND...........LITTLE CHANGE.
* WIND (20 FT/10-MIN AVG)..LIGHT WINDS.
* 10000 FT MSL WIND........NORTH 5 TO 10 MPH.
* MIXING HEIGHT............3839 FT AGL.
* TRANSPORT WINDS..........EAST 5 KNOTS SHIFTING TO THE NORTHWEST 4
KNOTS IN THE AFTERNOON.
* VENTILATION CATEGORY.....MARGINAL (15356 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLEAR (20-30 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........42 TO 52 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MAX HUMIDITY.............37 TO 47 PCT.
24 HR TREND...........LITTLE CHANGE.
* WIND (20 FT/10-MIN AVG)..LIGHT WINDS.
* 10000 FT MSL WIND........NORTHWEST 5 TO 10 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..........61 TO 71 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MIN HUMIDITY.............17 TO 27 PCT.
24 HR TREND...........LITTLE CHANGE.
* WIND (20 FT/10-MIN AVG)..LIGHT WINDS.
* 10000 FT MSL WIND........NORTHWEST 5 TO 10 MPH.
* MIXING HEIGHT............4202 FT AGL.
* TRANSPORT WINDS..........SOUTHEAST 6 KNOTS SHIFTING TO THE
NORTHWEST IN THE AFTERNOON.
* VENTILATION CATEGORY.....FAIR (25212 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
SUNDAY
PARTLY CLOUDY. LOWS 40 TO 50. HIGHS 56 TO 66. EAST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 20 TO 30 PCT.
MONDAY
PARTLY CLOUDY. LOWS 37 TO 47. HIGHS 56 TO 66. EAST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 23 TO 33 PCT.
TUESDAY
CLEAR. LOWS 37 TO 47. HIGHS 58 TO 68. LIGHT WINDS.
MINIMUM HUMIDITY 16 TO 26 PCT.
WEDNESDAY
MOSTLY CLEAR. LOWS 38 TO 48. HIGHS 59 TO 69.
THURSDAY
MOSTLY CLEAR. LOWS 38 TO 48. HIGHS 59 TO 69.
NOTE TO USERS - ZONE 154 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE AVERAGE ACROSS THE ZONE
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