815
FNUS55 KTWC 091104
FWFTWC
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST ARIZONA
NATIONAL WEATHER SERVICE TUCSON AZ
404 AM MST FRI JAN 9 2026
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
20-FOOT WIND FORECAST OF 'LIGHT WINDS' INDICATES MAINLY
TERRAIN DRIVEN WINDS
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
DISCUSSION
A FEW LINGERING LIGHT VALLEY RAIN AND MOUNTAIN
SNOW SHOWERS THIS MORNING NEAR THE ARIZONA AND NEW MEXICO STATE
LINE. OTHERWISE CLEARING SKIES AND A COOL DAY 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. TEMPERATURES WILL MODERATE AS WELL THIS
WEEKEND TO THE NEW WEEK.
AZZ150-092200-
ARIZONA FIRE WEATHER ZONE 150
SONORAN FDRA-MOST OF PIMA COUNTY-SOUTH CENTRAL PINAL COUNTY-
TOHONO O'ODHAM NATION-TUCSON METROPOLITAN AREA-TDC-
404 AM MST FRI JAN 9 2026
TODAY
* SKY/WEATHER..............MOSTLY SUNNY (5-15 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........48 TO 58 DEGS.
24 HR TREND...........DOWN 2 TO 5 DEGS.
* MIN HUMIDITY.............38 TO 48 PCT.
24 HR TREND...........DOWN 16 TO 20 PCT.
* WIND (20 FT/10-MIN AVG)..WEST AROUND 10 MPH SHIFTING TO THE NORTH
IN THE AFTERNOON.
* 10000 FT MSL WIND........NORTHWEST 30 TO 35 MPH.
* MIXING HEIGHT............4673 FT AGL.
* TRANSPORT WINDS..........WEST 9 KNOTS SHIFTING TO THE NORTH 16
KNOTS IN THE AFTERNOON.
* VENTILATION CATEGORY.....VERY GOOD (74768 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY 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 TO 4 DEGS.
* MAX HUMIDITY.............56 TO 66 PCT.
24 HR TREND...........DOWN 22 TO 26 PCT.
* WIND (20 FT/10-MIN AVG)..NORTHEAST 10 TO 15 MPH.
* 10000 FT MSL WIND........NORTH 30 TO 35 MPH.
SATURDAY
* SKY/WEATHER..............MOSTLY 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.............26 TO 36 PCT.
24 HR TREND...........DOWN 10 TO 14 PCT.
* WIND (20 FT/10-MIN AVG)..NORTHEAST 10 TO 20 MPH.
* 10000 FT MSL WIND........NORTHEAST 25 TO 30 MPH.
* MIXING HEIGHT............3830 FT AGL.
* TRANSPORT WINDS..........NORTHEAST 25 TO 30 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (114900 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
SUNDAY
CLEAR. LOWS 33 TO 43. HIGHS 58 TO 68. EAST WIND AROUND
25 MPH. MINIMUM HUMIDITY 21 TO 31 PCT.
MONDAY
CLEAR. LOWS 33 TO 43. HIGHS 61 TO 71. NORTHEAST WIND
AROUND 20 MPH. MINIMUM HUMIDITY 20 TO 30 PCT.
TUESDAY
CLEAR. LOWS 35 TO 45. HIGHS 64 TO 74. LIGHT WINDS.
MINIMUM HUMIDITY 19 TO 29 PCT.
WEDNESDAY
CLEAR. LOWS 38 TO 48. HIGHS 67 TO 77.
THURSDAY
CLEAR. LOWS 40 TO 50. HIGHS 67 TO 77.
NOTE TO USERS - ZONE 150 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE TUCSON INTERNATIONAL AIRPORT
LOCATION (2550 MSL)
AZZ151-092200-
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-
404 AM MST FRI JAN 9 2026
TODAY
* SKY/WEATHER..............MOSTLY SUNNY (10-20 PCT). WIDESPREAD
FROST.
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........43 TO 53 DEGS.
24 HR TREND...........DOWN 1 TO 4 DEGS.
* MIN HUMIDITY.............43 TO 53 PCT.
24 HR TREND...........DOWN 20 TO 24 PCT.
* WIND (20 FT/10-MIN AVG)..WEST AROUND 10 MPH SHIFTING TO THE NORTH
IN THE AFTERNOON.
* 10000 FT MSL WIND........NORTHWEST 25 TO 30 MPH.
* MIXING HEIGHT............4094 FT AGL.
* TRANSPORT WINDS..........WEST 9 KNOTS SHIFTING TO THE NORTH 15
KNOTS IN THE AFTERNOON.
* VENTILATION CATEGORY.....GOOD (61410 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLEAR (0-10 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.............64 TO 74 PCT.
24 HR TREND...........DOWN 26 TO 30 PCT.
* WIND (20 FT/10-MIN AVG)..NORTHEAST 10 TO 15 MPH.
* 10000 FT MSL WIND........NORTH 30 TO 35 MPH.
SATURDAY
* SKY/WEATHER..............MOSTLY 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.............31 TO 41 PCT.
24 HR TREND...........DOWN 9 TO 13 PCT.
* WIND (20 FT/10-MIN AVG)..BREEZY. EAST 15 TO 25 MPH.
* 10000 FT MSL WIND........NORTHEAST 25 TO 30 MPH.
* MIXING HEIGHT............3123 FT AGL.
* TRANSPORT WINDS..........EAST 30 TO 31 KNOTS.
* VENTILATION CATEGORY.....VERY GOOD (96813 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
SUNDAY
CLEAR. LOWS 27 TO 37. HIGHS 50 TO 60. EAST WIND AROUND
30 MPH. MINIMUM HUMIDITY 26 TO 36 PCT.
MONDAY
CLEAR. LOWS 27 TO 37. HIGHS 56 TO 66. EAST WIND AROUND
20 MPH. MINIMUM HUMIDITY 24 TO 34 PCT.
TUESDAY
CLEAR. LOWS 30 TO 40. HIGHS 60 TO 70. LIGHT WINDS.
MINIMUM HUMIDITY 25 TO 35 PCT.
WEDNESDAY
CLEAR. LOWS 33 TO 43. HIGHS 62 TO 72.
THURSDAY
CLEAR. LOWS 33 TO 43. 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)
AZZ152-092200-
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-
404 AM MST FRI JAN 9 2026
TODAY
* SKY/WEATHER..............PARTLY CLOUDY (25-35 PCT) THEN BECOMING
MOSTLY SUNNY (10-20 PCT). WIDESPREAD
FROST.
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........42 TO 52 DEGS.
24 HR TREND...........DOWN 3 TO 7 DEGS.
* MIN HUMIDITY.............39 TO 49 PCT.
24 HR TREND...........DOWN 14 TO 18 PCT.
* WIND (20 FT/10-MIN AVG)..NORTHWEST 10 TO 15 MPH.
* 10000 FT MSL WIND........NORTHWEST 20 TO 25 MPH.
* MIXING HEIGHT............4640 FT AGL.
* TRANSPORT WINDS..........NORTHWEST 13 TO 16 KNOTS.
* VENTILATION CATEGORY.....VERY GOOD (74240 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLEAR (0-10 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.............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
NORTHEAST AFTER MIDNIGHT.
* 10000 FT MSL WIND........NORTH 25 TO 30 MPH.
SATURDAY
* SKY/WEATHER..............MOSTLY SUNNY (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........44 TO 54 DEGS.
24 HR TREND...........UP 2 TO 5 DEGS.
* MIN HUMIDITY.............35 TO 45 PCT.
24 HR TREND...........DOWN 4 TO 8 PCT.
* WIND (20 FT/10-MIN AVG)..BREEZY. EAST 15 TO 25 MPH.
* 10000 FT MSL WIND........NORTHEAST 20 TO 25 MPH.
* MIXING HEIGHT............3012 FT AGL.
* TRANSPORT WINDS..........EAST 26 TO 28 KNOTS.
* VENTILATION CATEGORY.....VERY GOOD (84336 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
SUNDAY
CLEAR. LOWS 24 TO 34. HIGHS 47 TO 57. EAST WIND AROUND
30 MPH. MINIMUM HUMIDITY 26 TO 36 PCT.
MONDAY
CLEAR. LOWS 25 TO 35. HIGHS 51 TO 61. EAST WIND AROUND
20 MPH. MINIMUM HUMIDITY 25 TO 35 PCT.
TUESDAY
CLEAR. LOWS 26 TO 36. HIGHS 55 TO 65. LIGHT WINDS.
MINIMUM HUMIDITY 27 TO 37 PCT.
WEDNESDAY
CLEAR. LOWS 30 TO 40. HIGHS 58 TO 68.
THURSDAY
CLEAR. LOWS 30 TO 40. 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)
AZZ153-092200-
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-
404 AM MST FRI JAN 9 2026
TODAY
* SKY/WEATHER..............PARTLY CLOUDY (30-40 PCT) THEN BECOMING
MOSTLY SUNNY (15-25 PCT). WIDESPREAD
FROST.
* CHANCE OF PRECIP.........10 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........31 TO 41 DEGS.
24 HR TREND...........DOWN 1 DEG.
* MIN HUMIDITY.............41 TO 51 PCT.
24 HR TREND...........DOWN 31 TO 35 PCT.
* WIND (20 FT/10-MIN AVG)..NORTHWEST AROUND 10 MPH.
* 10000 FT MSL WIND........NORTHWEST 15 TO 20 MPH.
* MIXING HEIGHT............4095 FT AGL.
* TRANSPORT WINDS..........NORTH 15 TO 16 KNOTS.
* VENTILATION CATEGORY.....GOOD (65520 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLEAR (5-15 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........13 TO 23 DEGS.
24 HR TREND...........DOWN 3 TO 6 DEGS.
* MAX HUMIDITY.............60 TO 70 PCT.
24 HR TREND...........DOWN 22 TO 26 PCT.
* WIND (20 FT/10-MIN AVG)..NORTHEAST 10 TO 15 MPH.
* 10000 FT MSL WIND........NORTH 25 TO 30 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.............31 TO 41 PCT.
24 HR TREND...........DOWN 7 TO 11 PCT.
* WIND (20 FT/10-MIN AVG)..EAST AROUND 10 MPH.
* 10000 FT MSL WIND........NORTHEAST 20 TO 25 MPH.
* MIXING HEIGHT............2769 FT AGL.
* TRANSPORT WINDS..........EAST 15 TO 17 KNOTS.
* VENTILATION CATEGORY.....GOOD (47073 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
SUNDAY
CLEAR. LOWS 19 TO 29. HIGHS 41 TO 51. EAST WIND AROUND
20 MPH. MINIMUM HUMIDITY 27 TO 37 PCT.
MONDAY
CLEAR. LOWS 20 TO 30. HIGHS 45 TO 55. EAST WIND AROUND
15 MPH. MINIMUM HUMIDITY 30 TO 40 PCT.
TUESDAY
CLEAR. LOWS 23 TO 33. HIGHS 50 TO 60. LIGHT WINDS.
MINIMUM HUMIDITY 29 TO 39 PCT.
WEDNESDAY
CLEAR. LOWS 27 TO 37. HIGHS 51 TO 61.
THURSDAY
CLEAR. LOWS 26 TO 36. HIGHS 52 TO 62.
NOTE TO USERS - ZONE 153 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE POINT OF PINES LOCATION (6040 MSL)
AZZ154-092200-
ARIZONA FIRE WEATHER ZONE 154
FOREST WOODLANDS FDRA INCLUDING THE SKY ISLANDS OF SOUTHEAST
ARIZONA ABOVE 5500 FEET-CORONADO NF-TDC-
404 AM MST FRI JAN 9 2026
TODAY
* SKY/WEATHER..............MOSTLY SUNNY (20-30 PCT). WIDESPREAD
FROST.
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........34 TO 44 DEGS.
24 HR TREND...........DOWN 2 TO 5 DEGS.
* MIN HUMIDITY.............48 TO 58 PCT.
24 HR TREND...........DOWN 16 TO 20 PCT.
* WIND (20 FT/10-MIN AVG)..NORTHWEST 10 TO 15 MPH.
* 10000 FT MSL WIND........NORTHWEST 25 TO 30 MPH.
* MIXING HEIGHT............5091 FT AGL.
* TRANSPORT WINDS..........NORTHWEST 13 TO 14 KNOTS.
* VENTILATION CATEGORY.....GOOD (68728 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLEAR (10-20 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........20 TO 30 DEGS.
24 HR TREND...........DOWN 1 DEG.
* MAX HUMIDITY.............60 TO 70 PCT.
24 HR TREND...........DOWN 26 TO 30 PCT.
* WIND (20 FT/10-MIN AVG)..NORTHEAST 15 TO 20 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..........35 TO 45 DEGS.
24 HR TREND...........UP 2 TO 5 DEGS.
* MIN HUMIDITY.............37 TO 47 PCT.
24 HR TREND...........DOWN 8 TO 12 PCT.
* WIND (20 FT/10-MIN AVG)..BREEZY. EAST 15 TO 25 MPH.
* 10000 FT MSL WIND........NORTHEAST 25 TO 30 MPH.
* MIXING HEIGHT............3103 FT AGL.
* TRANSPORT WINDS..........EAST 29 KNOTS.
* VENTILATION CATEGORY.....VERY GOOD (89987 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
SUNDAY
CLEAR. LOWS 24 TO 34. HIGHS 39 TO 49. EAST WIND AROUND
30 MPH. MINIMUM HUMIDITY 28 TO 38 PCT.
MONDAY
CLEAR. LOWS 26 TO 36. HIGHS 45 TO 55. EAST WIND AROUND
25 MPH. MINIMUM HUMIDITY 24 TO 34 PCT.
TUESDAY
CLEAR. LOWS 28 TO 38. HIGHS 50 TO 60. LIGHT WINDS.
MINIMUM HUMIDITY 27 TO 37 PCT.
WEDNESDAY
CLEAR. LOWS 31 TO 41. HIGHS 51 TO 61.
THURSDAY
CLEAR. LOWS 31 TO 41. HIGHS 52 TO 62.
NOTE TO USERS - ZONE 154 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE AVERAGE ACROSS THE ZONE
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