184
FNUS55 KTWC 280942
FWFTWC
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST ARIZONA
NATIONAL WEATHER SERVICE TUCSON AZ
242 AM MST SUN DEC 28 2025
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
20-FOOT WIND FORECAST OF 'LIGHT WINDS' INDICATES MAINLY
TERRAIN DRIVEN WINDS
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
DISCUSSION
THE WEATHER SYSTEM THAT BROUGHT LIGHT RAIN
SHOWERS TO SOUTHEAST ARIZONA YESTERDAY HAS SINCE MOVED EAST OF
THE AREA...WITH DRY WEATHER EXPECTED TODAY IN ITS WAKE. 20-FOOT
WINDS WILL BE 15 MPH OR LESS AND TERRAIN DRIVEN TODAY. A BACK-
DOOR COLD FRONT WILL MOVE INTO GREENLEE, GRAHAM AND COCHISE
COUNTIES TONIGHT INTO MONDAY, BRINGING WITH IT GUSTY EASTERLY
WINDS AND A SLIGHT CHANCE OF VALLEY RAIN AND MOUNTAIN SNOW EAST OF
TUCSON. CAN'T RULE OUT A BRIEF PERIOD OF MIXED RAIN AND SNOW FOR
A FEW OF THE VALLEY LOCATIONS IN THE AFORE-MENTIONED COUNTIES.
TEMPERATURES WILL REMAIN NEAR NORMAL LEVELS THIS WEEKEND INTO
NEXT WEEK. MIN RELATIVE HUMIDITY VALUES WILL BE ELEVATED TODAY
RANGING FROM 35-45 PERCENT IN THE VALLEYS AND 50-70 PERCENT IN THE
MOUNTAINS THROUGH WEDNESDAY, INCREASING 15 TO 25 PERCENT WITH
THAT NEXT WEATHER SYSTEM.
AZZ150-282345-
ARIZONA FIRE WEATHER ZONE 150
SONORAN FDRA-MOST OF PIMA COUNTY-SOUTH CENTRAL PINAL COUNTY-
TOHONO O'ODHAM NATION-TUCSON METROPOLITAN AREA-TDC-
242 AM MST SUN DEC 28 2025
TODAY
* SKY/WEATHER..............PARTLY CLOUDY (20-30 PCT) THEN BECOMING
MOSTLY SUNNY (15-25 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........60 TO 70 DEGS.
24 HR TREND...........UP 1 DEG.
* MIN HUMIDITY.............31 TO 41 PCT.
24 HR TREND...........DOWN 18 TO 22 PCT.
* WIND (20 FT/10-MIN AVG)..NORTHEAST AROUND 10 MPH.
* 10000 FT MSL WIND........WEST AROUND 15 MPH BECOMING SOUTHWEST
AROUND 5 MPH IN THE AFTERNOON.
* MIXING HEIGHT............4042 FT AGL.
* TRANSPORT WINDS..........NORTHEAST 8 TO 11 KNOTS.
* VENTILATION CATEGORY.....GOOD (44462 KNOT-FT).
TONIGHT
* SKY/WEATHER..............PARTLY CLOUDY (25-35 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........38 TO 48 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MAX HUMIDITY.............63 TO 73 PCT.
24 HR TREND...........DOWN 17 TO 21 PCT.
* WIND (20 FT/10-MIN AVG)..NORTH AROUND 10 MPH SHIFTING TO THE EAST
AFTER MIDNIGHT.
* 10000 FT MSL WIND........SOUTH 15 TO 20 MPH.
MONDAY
* SKY/WEATHER..............MOSTLY SUNNY (20-30 PCT) THEN BECOMING
PARTLY CLOUDY (35-45 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........63 TO 73 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MIN HUMIDITY.............32 TO 42 PCT.
24 HR TREND...........LITTLE CHANGE.
* WIND (20 FT/10-MIN AVG)..EAST 10 TO 20 MPH.
* 10000 FT MSL WIND........SOUTH 15 TO 20 MPH.
* MIXING HEIGHT............3543 FT AGL.
* TRANSPORT WINDS..........EAST 18 TO 20 KNOTS.
* VENTILATION CATEGORY.....VERY GOOD (70860 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
TUESDAY
MOSTLY CLOUDY. LOWS 43 TO 53. HIGHS 60 TO 70. EAST
WIND AROUND 25 MPH. MINIMUM HUMIDITY 36 TO 46 PCT.
WEDNESDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS 43 TO
53. HIGHS 63 TO 73. NORTHEAST WIND AROUND 15 MPH. MINIMUM
HUMIDITY 37 TO 47 PCT.
NEW YEARS DAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. LOWS 47 TO 57.
HIGHS 61 TO 71. LIGHT WINDS. MINIMUM HUMIDITY 54 TO 64 PCT.
FRIDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. LOWS 48 TO 58. HIGHS
61 TO 71.
SATURDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS 46 TO
56. HIGHS 62 TO 72.
NOTE TO USERS - ZONE 150 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE TUCSON INTERNATIONAL AIRPORT
LOCATION (2550 MSL)
AZZ151-282345-
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-
242 AM MST SUN DEC 28 2025
TODAY
* SKY/WEATHER..............PARTLY CLOUDY (35-45 PCT) THEN BECOMING
MOSTLY SUNNY (15-25 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........57 TO 67 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MIN HUMIDITY.............32 TO 42 PCT.
24 HR TREND...........DOWN 27 TO 31 PCT.
* WIND (20 FT/10-MIN AVG)..EAST AROUND 10 MPH.
* 10000 FT MSL WIND........WEST 15 TO 20 MPH.
* MIXING HEIGHT............3648 FT AGL.
* TRANSPORT WINDS..........NORTHEAST 9 KNOTS.
* VENTILATION CATEGORY.....FAIR (32832 KNOT-FT).
TONIGHT
* SKY/WEATHER..............PARTLY CLOUDY (35-45 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........37 TO 47 DEGS.
24 HR TREND...........UP 1 DEG.
* MAX HUMIDITY.............69 TO 79 PCT.
24 HR TREND...........DOWN 19 TO 23 PCT.
* WIND (20 FT/10-MIN AVG)..EAST 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTH 20 TO 25 MPH.
MONDAY
* SKY/WEATHER..............PARTLY CLOUDY (45-55 PCT).
* CHANCE OF PRECIP.........10 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........55 TO 65 DEGS.
24 HR TREND...........DOWN 1 DEG.
* MIN HUMIDITY.............41 TO 51 PCT.
24 HR TREND...........UP 6 TO 10 PCT.
* WIND (20 FT/10-MIN AVG)..EAST 10 TO 20 MPH.
* 10000 FT MSL WIND........SOUTH 20 TO 25 MPH.
* MIXING HEIGHT............4015 FT AGL.
* TRANSPORT WINDS..........EAST 21 TO 22 KNOTS.
* VENTILATION CATEGORY.....VERY GOOD (88330 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
TUESDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS 36 TO
46. HIGHS 54 TO 64. EAST WIND AROUND 20 MPH. MINIMUM HUMIDITY
42 TO 52 PCT.
WEDNESDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS 38 TO
48. HIGHS 59 TO 69. EAST WIND AROUND 15 MPH. MINIMUM HUMIDITY
42 TO 52 PCT.
NEW YEARS DAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. LOWS 42 TO 52.
HIGHS 58 TO 68. LIGHT WINDS. MINIMUM HUMIDITY 56 TO 66 PCT.
FRIDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. LOWS 44 TO 54. HIGHS
57 TO 67.
SATURDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS 41 TO
51. HIGHS 58 TO 68.
NOTE TO USERS - ZONE 151 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE BUENOS AIRES N.W.R. LOCATION
(3500 MSL)
AZZ152-282345-
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-
242 AM MST SUN DEC 28 2025
TODAY
* SKY/WEATHER..............PARTLY CLOUDY (30-40 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........55 TO 65 DEGS.
24 HR TREND...........DOWN 1 DEG.
* MIN HUMIDITY.............31 TO 41 PCT.
24 HR TREND...........DOWN 31 TO 35 PCT.
* WIND (20 FT/10-MIN AVG)..NORTH AROUND 10 MPH IN THE MORNING
BECOMING LIGHT.
* 10000 FT MSL WIND........WEST AROUND 25 MPH BECOMING SOUTHWEST
AROUND 15 MPH IN THE AFTERNOON.
* MIXING HEIGHT............3511 FT AGL.
* TRANSPORT WINDS..........NORTH 9 KNOTS SHIFTING TO THE EAST 7
KNOTS IN THE AFTERNOON.
* VENTILATION CATEGORY.....FAIR (24577 KNOT-FT).
TONIGHT
* SKY/WEATHER..............PARTLY CLOUDY (45-55 PCT).
* CHANCE OF PRECIP.........10 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........36 TO 46 DEGS.
24 HR TREND...........DOWN 1 DEG.
* MAX HUMIDITY.............62 TO 72 PCT.
24 HR TREND...........DOWN 25 TO 29 PCT.
* WIND (20 FT/10-MIN AVG)..EAST AROUND 10 MPH INCREASING TO AROUND
20 MPH AFTER MIDNIGHT.
* 10000 FT MSL WIND........SOUTH 15 TO 20 MPH.
MONDAY
* SKY/WEATHER..............MOSTLY CLOUDY (50-60 PCT). SLIGHT CHANCE
OF SHOWERS.
* CHANCE OF PRECIP.........20 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........48 TO 58 DEGS.
24 HR TREND...........DOWN 4 TO 8 DEGS.
* MIN HUMIDITY.............42 TO 52 PCT.
24 HR TREND...........UP 7 TO 11 PCT.
* WIND (20 FT/10-MIN AVG)..BREEZY. EAST 15 TO 25 MPH.
* 10000 FT MSL WIND........SOUTH 15 TO 20 MPH.
* MIXING HEIGHT............2146 FT AGL.
* TRANSPORT WINDS..........EAST 27 TO 28 KNOTS.
* VENTILATION CATEGORY.....GOOD (60088 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
TUESDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS 32 TO
42. HIGHS 48 TO 58. EAST WIND AROUND 25 MPH. MINIMUM HUMIDITY
44 TO 54 PCT.
WEDNESDAY
MOSTLY CLOUDY. LOWS 33 TO 43. HIGHS 55 TO 65. EAST
WIND AROUND 15 MPH. MINIMUM HUMIDITY 42 TO 52 PCT.
NEW YEARS DAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. LOWS 39 TO 49.
HIGHS 56 TO 66. LIGHT WINDS. MINIMUM HUMIDITY 53 TO 63 PCT.
FRIDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. LOWS 42 TO 52. HIGHS
56 TO 66.
SATURDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. LOWS 39 TO 49.
HIGHS 57 TO 67.
NOTE TO USERS - ZONE 152 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE CHIRICAHUA N.M. LOCATION (5400 MSL)
AZZ153-282345-
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-
242 AM MST SUN DEC 28 2025
TODAY
* SKY/WEATHER..............PARTLY CLOUDY (25-35 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........47 TO 57 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MIN HUMIDITY.............26 TO 36 PCT.
24 HR TREND...........DOWN 49 TO 53 PCT.
* WIND (20 FT/10-MIN AVG)..NORTH AROUND 10 MPH SHIFTING TO THE EAST
IN THE AFTERNOON.
* 10000 FT MSL WIND........NORTHWEST AROUND 15 MPH SHIFTING TO THE
NORTHEAST IN THE AFTERNOON.
* MIXING HEIGHT............4831 FT AGL.
* TRANSPORT WINDS..........NORTH 11 KNOTS SHIFTING TO THE EAST IN
THE AFTERNOON.
* VENTILATION CATEGORY.....GOOD (53141 KNOT-FT).
TONIGHT
* SKY/WEATHER..............PARTLY CLOUDY (30-40 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........29 TO 39 DEGS.
24 HR TREND...........UP 1 DEG.
* MAX HUMIDITY.............51 TO 61 PCT.
24 HR TREND...........DOWN 31 TO 35 PCT.
* WIND (20 FT/10-MIN AVG)..EAST AROUND 10 MPH.
* 10000 FT MSL WIND........SOUTHEAST AROUND 15 MPH SHIFTING TO THE
SOUTH AFTER MIDNIGHT.
MONDAY
* SKY/WEATHER..............MOSTLY CLOUDY (55-65 PCT). CHANCE OF
SNOW SHOWERS AND SLIGHT CHANCE OF
SHOWERS.
* CHANCE OF PRECIP.........30 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........41 TO 51 DEGS.
24 HR TREND...........DOWN 3 TO 7 DEGS.
* MIN HUMIDITY.............40 TO 50 PCT.
24 HR TREND...........UP 13 TO 17 PCT.
* WIND (20 FT/10-MIN AVG)..EAST 10 TO 20 MPH.
* 10000 FT MSL WIND........SOUTH 10 TO 15 MPH.
* MIXING HEIGHT............3833 FT AGL.
* TRANSPORT WINDS..........EAST 15 TO 16 KNOTS.
* VENTILATION CATEGORY.....GOOD (61328 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
TUESDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN AND SNOW SHOWERS.
LOWS 27 TO 37. HIGHS 43 TO 53. EAST WIND AROUND 15 MPH. MINIMUM
HUMIDITY 46 TO 56 PCT.
WEDNESDAY
MOSTLY CLOUDY. LOWS 30 TO 40. HIGHS 49 TO 59. LIGHT
WINDS. MINIMUM HUMIDITY 37 TO 47 PCT.
NEW YEARS DAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. LOWS 34 TO 44.
HIGHS 49 TO 59. LIGHT WINDS. MINIMUM HUMIDITY 49 TO 59 PCT.
FRIDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. LOWS 37 TO 47. HIGHS
47 TO 57.
SATURDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. LOWS 35 TO 45.
HIGHS 48 TO 58.
NOTE TO USERS - ZONE 153 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE POINT OF PINES LOCATION (6040 MSL)
AZZ154-282345-
ARIZONA FIRE WEATHER ZONE 154
FOREST WOODLANDS FDRA INCLUDING THE SKY ISLANDS OF SOUTHEAST
ARIZONA ABOVE 5500 FEET-CORONADO NF-TDC-
242 AM MST SUN DEC 28 2025
TODAY
* SKY/WEATHER..............PARTLY CLOUDY (30-40 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........48 TO 58 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MIN HUMIDITY.............38 TO 48 PCT.
24 HR TREND...........DOWN 30 TO 34 PCT.
* WIND (20 FT/10-MIN AVG)..NORTHWEST AROUND 10 MPH IN THE MORNING
BECOMING LIGHT.
* 10000 FT MSL WIND........WEST AROUND 25 MPH BECOMING SOUTHWEST
AROUND 15 MPH IN THE AFTERNOON.
* MIXING HEIGHT............3619 FT AGL.
* TRANSPORT WINDS..........NORTH 9 KNOTS SHIFTING TO THE SOUTHEAST
7 KNOTS IN THE AFTERNOON.
* VENTILATION CATEGORY.....FAIR (25333 KNOT-FT).
TONIGHT
* SKY/WEATHER..............PARTLY CLOUDY (40-50 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........34 TO 44 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MAX HUMIDITY.............67 TO 77 PCT.
24 HR TREND...........DOWN 21 TO 25 PCT.
* WIND (20 FT/10-MIN AVG)..EAST AROUND 10 MPH INCREASING TO AROUND
20 MPH AFTER MIDNIGHT.
* 10000 FT MSL WIND........SOUTH 20 TO 25 MPH.
MONDAY
* SKY/WEATHER..............MOSTLY CLOUDY (50-60 PCT). SLIGHT CHANCE
OF SHOWERS.
* CHANCE OF PRECIP.........10 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........42 TO 52 DEGS.
24 HR TREND...........DOWN 3 TO 6 DEGS.
* MIN HUMIDITY.............50 TO 60 PCT.
24 HR TREND...........UP 8 TO 12 PCT.
* WIND (20 FT/10-MIN AVG)..BREEZY. EAST 15 TO 25 MPH.
* 10000 FT MSL WIND........SOUTHWEST 20 TO 25 MPH.
* MIXING HEIGHT............2305 FT AGL.
* TRANSPORT WINDS..........EAST 23 KNOTS.
* VENTILATION CATEGORY.....GOOD (53015 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
TUESDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN AND SNOW SHOWERS.
LOWS 30 TO 40. HIGHS 41 TO 51. EAST WIND AROUND 20 MPH. MINIMUM
HUMIDITY 49 TO 59 PCT.
WEDNESDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS 33 TO
43. HIGHS 48 TO 58. EAST WIND AROUND 15 MPH. MINIMUM HUMIDITY
45 TO 55 PCT.
NEW YEARS DAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. LOWS 39 TO 49.
HIGHS 49 TO 59. LIGHT WINDS. MINIMUM HUMIDITY 58 TO 68 PCT.
FRIDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. LOWS 41 TO 51. HIGHS
49 TO 59.
SATURDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS 39 TO
49. HIGHS 50 TO 60.
NOTE TO USERS - ZONE 154 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE AVERAGE ACROSS THE ZONE
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