945
FNUS55 KTWC 092127
FWFTWC
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST ARIZONA
NATIONAL WEATHER SERVICE TUCSON AZ
227 PM MST FRI JAN 9 2026
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
20-FOOT WIND FORECAST OF 'LIGHT WINDS' INDICATES MAINLY
TERRAIN DRIVEN WINDS
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
DISCUSSION
TODAY WILL BE COOL AREAWIDE ON THE BACK SIDE OF
YESTERDAYS WEATHER SYSTEM. COLD TONIGHT WITH WIDESPREAD FREEZING
TEMPERATURES. WARMER TOMORROW WITH GRADUALLY WARMING TREND ALL
NEXT WEEK. GUSTY EAST TO SOUTHEAST WINDS WILL DEVELOP LATE
SATURDAY INTO SUNDAY WITH GUSTS TO 45 MPH. TEMPERATURES WILL
MODERATE AS WELL THIS WEEKEND TO THE NEW WEEK.
AZZ150-101415-
ARIZONA FIRE WEATHER ZONE 150
SONORAN FDRA-MOST OF PIMA COUNTY-SOUTH CENTRAL PINAL COUNTY-
TOHONO O'ODHAM NATION-TUCSON METROPOLITAN AREA-TDC-
227 PM MST FRI JAN 9 2026
TONIGHT
* SKY/WEATHER..............CLEAR (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........28 TO 38 DEGS.
24 HR TREND...........DOWN 1 DEG.
* MAX HUMIDITY.............58 TO 68 PCT.
24 HR TREND...........DOWN 21 TO 25 PCT.
* WIND (20 FT/10-MIN AVG)..NORTHEAST 10 TO 15 MPH.
* 10000 FT MSL WIND........NORTH 30 TO 35 MPH.
SATURDAY
* SKY/WEATHER..............SUNNY (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........53 TO 63 DEGS.
24 HR TREND...........UP 3 TO 7 DEGS.
* MIN HUMIDITY.............24 TO 34 PCT.
24 HR TREND...........DOWN 11 TO 15 PCT.
* WIND (20 FT/10-MIN AVG)..NORTHEAST 10 TO 20 MPH.
* 10000 FT MSL WIND........NORTHEAST 30 TO 35 MPH.
* MIXING HEIGHT............3753 FT AGL.
* TRANSPORT WINDS..........NORTHEAST 24 TO 27 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (101331 KNOT-FT).
SATURDAY NIGHT
* SKY/WEATHER..............CLEAR (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........33 TO 43 DEGS.
24 HR TREND...........UP 3 TO 6 DEGS.
* MAX HUMIDITY.............42 TO 52 PCT.
24 HR TREND...........DOWN 14 TO 18 PCT.
* WIND (20 FT/10-MIN AVG)..NORTHEAST 10 TO 20 MPH.
* 10000 FT MSL WIND........EAST 30 TO 35 MPH.
SUNDAY
* SKY/WEATHER..............SUNNY (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........58 TO 68 DEGS.
24 HR TREND...........UP 3 TO 6 DEGS.
* MIN HUMIDITY.............19 TO 29 PCT.
24 HR TREND...........DOWN 3 TO 7 PCT.
* WIND (20 FT/10-MIN AVG)..BREEZY. EAST 15 TO 25 MPH.
* 10000 FT MSL WIND........EAST 15 TO 20 MPH.
* MIXING HEIGHT............3622 FT AGL.
* TRANSPORT WINDS..........EAST 30 TO 32 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (115904 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
MONDAY
CLEAR. LOWS 33 TO 43. HIGHS 61 TO 71. EAST WIND AROUND
15 MPH. MINIMUM HUMIDITY 21 TO 31 PCT.
TUESDAY
CLEAR. LOWS 36 TO 46. HIGHS 65 TO 75. LIGHT WINDS.
MINIMUM HUMIDITY 20 TO 30 PCT.
WEDNESDAY
CLEAR. LOWS 38 TO 48. HIGHS 68 TO 78. LIGHT WINDS.
MINIMUM HUMIDITY 18 TO 28 PCT.
THURSDAY
CLEAR. LOWS 40 TO 50. HIGHS 69 TO 79.
FRIDAY
MOSTLY CLEAR. LOWS 40 TO 50. HIGHS 68 TO 78.
NOTE TO USERS - ZONE 150 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE TUCSON INTERNATIONAL AIRPORT
LOCATION (2550 MSL)
AZZ151-101415-
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-
227 PM MST FRI JAN 9 2026
TONIGHT
* SKY/WEATHER..............MOSTLY CLEAR (5-15 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........23 TO 33 DEGS.
24 HR TREND...........DOWN 1 TO 4 DEGS.
* MAX HUMIDITY.............65 TO 75 PCT.
24 HR TREND...........DOWN 27 TO 31 PCT.
* WIND (20 FT/10-MIN AVG)..NORTHEAST 10 TO 15 MPH.
* 10000 FT MSL WIND........NORTHEAST 30 TO 35 MPH.
SATURDAY
* SKY/WEATHER..............SUNNY (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........46 TO 56 DEGS.
24 HR TREND...........UP 1 TO 4 DEGS.
* MIN HUMIDITY.............29 TO 39 PCT.
24 HR TREND...........DOWN 12 TO 16 PCT.
* WIND (20 FT/10-MIN AVG)..BREEZY. EAST 15 TO 25 MPH.
* 10000 FT MSL WIND........NORTHEAST 30 TO 35 MPH.
* MIXING HEIGHT............3227 FT AGL.
* TRANSPORT WINDS..........EAST 30 KNOTS.
* VENTILATION CATEGORY.....VERY GOOD (96810 KNOT-FT).
SATURDAY NIGHT
* SKY/WEATHER..............CLEAR (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........27 TO 37 DEGS.
24 HR TREND...........UP 3 TO 6 DEGS.
* MAX HUMIDITY.............43 TO 53 PCT.
24 HR TREND...........DOWN 17 TO 21 PCT.
* WIND (20 FT/10-MIN AVG)..BREEZY. EAST 15 TO 25 MPH.
* 10000 FT MSL WIND........EAST 35 TO 40 MPH.
SUNDAY
* SKY/WEATHER..............SUNNY (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........50 TO 60 DEGS.
24 HR TREND...........UP 2 TO 5 DEGS.
* MIN HUMIDITY.............25 TO 35 PCT.
24 HR TREND...........DOWN 3 TO 7 PCT.
* WIND (20 FT/10-MIN AVG)..BREEZY. EAST 15 TO 25 MPH.
* 10000 FT MSL WIND........SOUTHEAST AROUND 30 MPH DECREASING TO
AROUND 15 MPH IN THE AFTERNOON.
* MIXING HEIGHT............2861 FT AGL.
* TRANSPORT WINDS..........EAST 31 TO 34 KNOTS.
* VENTILATION CATEGORY.....VERY GOOD (97274 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
MONDAY
CLEAR. LOWS 28 TO 38. HIGHS 55 TO 65. EAST WIND AROUND
20 MPH. MINIMUM HUMIDITY 26 TO 36 PCT.
TUESDAY
CLEAR. LOWS 30 TO 40. HIGHS 59 TO 69. LIGHT WINDS.
MINIMUM HUMIDITY 25 TO 35 PCT.
WEDNESDAY
CLEAR. LOWS 33 TO 43. HIGHS 63 TO 73. LIGHT WINDS.
MINIMUM HUMIDITY 22 TO 32 PCT.
THURSDAY
CLEAR. LOWS 34 TO 44. HIGHS 63 TO 73.
FRIDAY
MOSTLY CLEAR. LOWS 35 TO 45. HIGHS 62 TO 72.
NOTE TO USERS - ZONE 151 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE BUENOS AIRES N.W.R. LOCATION
(3500 MSL)
AZZ152-101415-
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-
227 PM MST FRI JAN 9 2026
TONIGHT
* SKY/WEATHER..............MOSTLY CLEAR (10-20 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........21 TO 31 DEGS.
24 HR TREND...........DOWN 3 TO 6 DEGS.
* MAX HUMIDITY.............64 TO 74 PCT.
24 HR TREND...........DOWN 25 TO 29 PCT.
* WIND (20 FT/10-MIN AVG)..NORTH AROUND 15 MPH SHIFTING TO THE
NORTHEAST AFTER MIDNIGHT.
* 10000 FT MSL WIND........NORTHEAST 15 TO 20 MPH.
SATURDAY
* SKY/WEATHER..............SUNNY (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........43 TO 53 DEGS.
24 HR TREND...........UP 2 TO 5 DEGS.
* MIN HUMIDITY.............33 TO 43 PCT.
24 HR TREND...........DOWN 9 TO 13 PCT.
* WIND (20 FT/10-MIN AVG)..EAST 10 TO 20 MPH.
* 10000 FT MSL WIND........NORTHEAST 25 TO 30 MPH.
* MIXING HEIGHT............2776 FT AGL.
* TRANSPORT WINDS..........EAST 27 KNOTS.
* VENTILATION CATEGORY.....VERY GOOD (74952 KNOT-FT).
SATURDAY NIGHT
* SKY/WEATHER..............CLEAR (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........24 TO 34 DEGS.
24 HR TREND...........UP 2 TO 5 DEGS.
* MAX HUMIDITY.............48 TO 58 PCT.
24 HR TREND...........DOWN 14 TO 18 PCT.
* WIND (20 FT/10-MIN AVG)..BREEZY. EAST 15 TO 25 MPH.
* 10000 FT MSL WIND........EAST 35 TO 40 MPH.
SUNDAY
* SKY/WEATHER..............SUNNY (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........47 TO 57 DEGS.
24 HR TREND...........UP 2 TO 5 DEGS.
* MIN HUMIDITY.............25 TO 35 PCT.
24 HR TREND...........DOWN 5 TO 9 PCT.
* WIND (20 FT/10-MIN AVG)..BREEZY. EAST 15 TO 25 MPH.
* 10000 FT MSL WIND........SOUTHEAST AROUND 35 MPH DECREASING TO
AROUND 25 MPH IN THE AFTERNOON.
* MIXING HEIGHT............2802 FT AGL.
* TRANSPORT WINDS..........EAST 29 TO 33 KNOTS.
* VENTILATION CATEGORY.....VERY GOOD (92466 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
MONDAY
CLEAR. LOWS 25 TO 35. HIGHS 51 TO 61. EAST WIND AROUND
20 MPH. MINIMUM HUMIDITY 25 TO 35 PCT.
TUESDAY
CLEAR. LOWS 27 TO 37. HIGHS 55 TO 65. LIGHT WINDS.
MINIMUM HUMIDITY 25 TO 35 PCT.
WEDNESDAY
CLEAR. LOWS 29 TO 39. HIGHS 59 TO 69. LIGHT WINDS.
MINIMUM HUMIDITY 24 TO 34 PCT.
THURSDAY
CLEAR. LOWS 31 TO 41. HIGHS 59 TO 69.
FRIDAY
MOSTLY CLEAR. LOWS 31 TO 41. HIGHS 58 TO 68.
NOTE TO USERS - ZONE 152 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE CHIRICAHUA N.M. LOCATION (5400 MSL)
AZZ153-101415-
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-
227 PM MST FRI JAN 9 2026
TONIGHT
* SKY/WEATHER..............MOSTLY CLEAR (10-20 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........13 TO 23 DEGS.
24 HR TREND...........DOWN 3 TO 7 DEGS.
* MAX HUMIDITY.............60 TO 70 PCT.
24 HR TREND...........DOWN 23 TO 27 PCT.
* WIND (20 FT/10-MIN AVG)..NORTHEAST 10 TO 15 MPH.
* 10000 FT MSL WIND........NORTHEAST 10 TO 15 MPH.
SATURDAY
* SKY/WEATHER..............SUNNY (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........38 TO 48 DEGS.
24 HR TREND...........UP 4 TO 8 DEGS.
* MIN HUMIDITY.............28 TO 38 PCT.
24 HR TREND...........DOWN 10 TO 14 PCT.
* WIND (20 FT/10-MIN AVG)..EAST AROUND 10 MPH.
* 10000 FT MSL WIND........NORTHEAST 20 TO 25 MPH.
* MIXING HEIGHT............3097 FT AGL.
* TRANSPORT WINDS..........EAST 16 TO 17 KNOTS.
* VENTILATION CATEGORY.....GOOD (52649 KNOT-FT).
SATURDAY NIGHT
* SKY/WEATHER..............CLEAR (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........19 TO 29 DEGS.
24 HR TREND...........UP 3 TO 7 DEGS.
* MAX HUMIDITY.............51 TO 61 PCT.
24 HR TREND...........DOWN 11 TO 15 PCT.
* WIND (20 FT/10-MIN AVG)..NORTHEAST 10 TO 15 MPH.
* 10000 FT MSL WIND........EAST 25 TO 30 MPH.
SUNDAY
* SKY/WEATHER..............SUNNY (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........41 TO 51 DEGS.
24 HR TREND...........UP 2 TO 5 DEGS.
* MIN HUMIDITY.............24 TO 34 PCT.
24 HR TREND...........DOWN 3 TO 7 PCT.
* WIND (20 FT/10-MIN AVG)..EAST 15 TO 20 MPH.
* 10000 FT MSL WIND........SOUTHEAST 25 TO 30 MPH.
* MIXING HEIGHT............3596 FT AGL.
* TRANSPORT WINDS..........EAST 20 TO 25 KNOTS.
* VENTILATION CATEGORY.....VERY GOOD (89900 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
MONDAY
CLEAR. LOWS 21 TO 31. HIGHS 45 TO 55. EAST WIND AROUND
15 MPH. MINIMUM HUMIDITY 26 TO 36 PCT.
TUESDAY
CLEAR. LOWS 23 TO 33. HIGHS 51 TO 61. LIGHT WINDS.
MINIMUM HUMIDITY 23 TO 33 PCT.
WEDNESDAY
CLEAR. LOWS 28 TO 38. HIGHS 53 TO 63. LIGHT WINDS.
MINIMUM HUMIDITY 25 TO 35 PCT.
THURSDAY
CLEAR. LOWS 28 TO 38. HIGHS 53 TO 63.
FRIDAY
MOSTLY CLEAR. LOWS 27 TO 37. HIGHS 50 TO 60.
NOTE TO USERS - ZONE 153 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE POINT OF PINES LOCATION (6040 MSL)
AZZ154-101415-
ARIZONA FIRE WEATHER ZONE 154
FOREST WOODLANDS FDRA INCLUDING THE SKY ISLANDS OF SOUTHEAST
ARIZONA ABOVE 5500 FEET-CORONADO NF-TDC-
227 PM MST FRI JAN 9 2026
TONIGHT
* SKY/WEATHER..............MOSTLY CLEAR (15-25 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........21 TO 31 DEGS.
24 HR TREND...........DOWN 1 DEG.
* MAX HUMIDITY.............63 TO 73 PCT.
24 HR TREND...........DOWN 26 TO 30 PCT.
* WIND (20 FT/10-MIN AVG)..NORTH AROUND 15 MPH SHIFTING TO THE EAST
AFTER MIDNIGHT.
* 10000 FT MSL WIND........NORTHEAST 20 TO 25 MPH.
SATURDAY
* SKY/WEATHER..............SUNNY (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........35 TO 45 DEGS.
24 HR TREND...........UP 1 TO 4 DEGS.
* MIN HUMIDITY.............35 TO 45 PCT.
24 HR TREND...........DOWN 12 TO 16 PCT.
* WIND (20 FT/10-MIN AVG)..BREEZY. EAST 15 TO 25 MPH.
* 10000 FT MSL WIND........NORTHEAST 25 TO 30 MPH.
* MIXING HEIGHT............2988 FT AGL.
* TRANSPORT WINDS..........EAST 29 TO 30 KNOTS.
* VENTILATION CATEGORY.....VERY GOOD (88146 KNOT-FT).
SATURDAY NIGHT
* SKY/WEATHER..............CLEAR (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........23 TO 33 DEGS.
24 HR TREND...........UP 1 TO 4 DEGS.
* MAX HUMIDITY.............41 TO 51 PCT.
24 HR TREND...........DOWN 18 TO 22 PCT.
* WIND (20 FT/10-MIN AVG)..WINDY. EAST 20 TO 30 MPH.
* 10000 FT MSL WIND........EAST 35 TO 40 MPH.
SUNDAY
* SKY/WEATHER..............SUNNY (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........38 TO 48 DEGS.
24 HR TREND...........UP 1 TO 4 DEGS.
* MIN HUMIDITY.............26 TO 36 PCT.
24 HR TREND...........DOWN 6 TO 10 PCT.
* WIND (20 FT/10-MIN AVG)..WINDY. EAST 20 TO 30 MPH.
* 10000 FT MSL WIND........SOUTHEAST AROUND 35 MPH DECREASING TO
AROUND 20 MPH IN THE AFTERNOON.
* MIXING HEIGHT............2996 FT AGL.
* TRANSPORT WINDS..........EAST 31 TO 33 KNOTS.
* VENTILATION CATEGORY.....VERY GOOD (95872 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
MONDAY
CLEAR. LOWS 26 TO 36. HIGHS 44 TO 54. EAST WIND AROUND
20 MPH. MINIMUM HUMIDITY 26 TO 36 PCT.
TUESDAY
CLEAR. LOWS 28 TO 38. HIGHS 49 TO 59. LIGHT WINDS.
MINIMUM HUMIDITY 28 TO 38 PCT.
WEDNESDAY
CLEAR. LOWS 31 TO 41. HIGHS 52 TO 62. LIGHT WINDS.
MINIMUM HUMIDITY 26 TO 36 PCT.
THURSDAY
CLEAR. LOWS 32 TO 42. HIGHS 52 TO 62.
FRIDAY
MOSTLY CLEAR. LOWS 32 TO 42. HIGHS 51 TO 61.
NOTE TO USERS - ZONE 154 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE AVERAGE ACROSS THE ZONE
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