605
FNUS55 KTWC 120921
FWFTWC
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST ARIZONA
NATIONAL WEATHER SERVICE TUCSON AZ
221 AM MST SUN APR 12 2026
...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 8 PM MST
THIS EVENING...
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
20-FOOT WIND FORECAST OF 'LIGHT WINDS' INDICATES MAINLY
TERRAIN DRIVEN WINDS
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
DISCUSSION
A PACIFIC WEATHER SYSTEM WILL LEAD TO STRONG SOUTHWESTERLY WINDS
TODAY AND MONDAY WITH SPEEDS 15-25 MPH AND GUSTS 30 TO 40 MPH.
DRYER CONDITIONS WILL BE IN PLACE TODAY, WHICH COMBINED WITH THE
WINDS AND LOW FUEL MOISTURE WILL LEAD TO CRITICAL FIRE WEATHER
CONDITIONS FROM CENTRAL PIMA COUNTY EASTWARD. A RED FLAG WARNING
IS IN PLACE. WHILE WINDS REMAIN GUSTY MONDAY, COOLER
TEMPERATURES AND INCREASED MOISTURE SHOULD HELP MITIGATE
WIDESPREAD FIRE WEATHER CONCERNS. SHOWERS WITH AN EMBEDDED
THUNDERSTORM OR TWO WILL BE POSSIBLE NORTH AND EAST OF TUCSON
MONDAY AFTERNOON INTO THE OVERNIGHT HOURS. THEREAFTER, WINDS
GENERALLY 15 MPH OR LESS THROUGH THE MIDDLE OF NEXT WEEK.
ANOTHER PACIFIC SYSTEM WILL LIKELY MOVE THROUGH LATE NEXT WEEK
WITH STRONG GUSTY WINDS AGAIN POSSIBLE THURSDAY AND FRIDAY.
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-
221 AM MST SUN APR 12 2026
...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 8 PM MST
THIS EVENING...
TODAY
* SKY/WEATHER..............PARTLY CLOUDY (40-50 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........75 TO 85 DEGS.
24 HR TREND...........DOWN 2 TO 5 DEGS.
* MIN HUMIDITY.............12 TO 22 PCT.
24 HR TREND...........DOWN 4 TO 8 PCT.
* WIND (20 FT/10-MIN AVG)..BREEZY. SOUTH 15 TO 25 MPH.
* 10000 FT MSL WIND........SOUTHWEST 25 TO 30 MPH.
* MIXING HEIGHT............9948 FT AGL.
* TRANSPORT WINDS..........SOUTH 22 TO 25 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (248700 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLOUDY (55-65 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........53 TO 63 DEGS.
24 HR TREND...........UP 1 DEG.
* MAX HUMIDITY.............49 TO 59 PCT.
24 HR TREND...........UP 1 PCT.
* WIND (20 FT/10-MIN AVG)..BREEZY. SOUTHWEST AROUND 25 MPH
DECREASING TO AROUND 15 MPH AFTER
MIDNIGHT.
* 10000 FT MSL WIND........SOUTHWEST 30 TO 35 MPH.
MONDAY
* SKY/WEATHER..............MOSTLY CLOUDY (55-65 PCT) THEN BECOMING
PARTLY CLOUDY (40-50 PCT).
* CHANCE OF PRECIP.........10 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........72 TO 82 DEGS.
24 HR TREND...........DOWN 3 TO 7 DEGS.
* MIN HUMIDITY.............21 TO 31 PCT.
24 HR TREND...........UP 11 TO 15 PCT.
* WIND (20 FT/10-MIN AVG)..BREEZY. SOUTHWEST 15 TO 25 MPH.
* 10000 FT MSL WIND........SOUTHWEST 35 TO 40 MPH.
* MIXING HEIGHT............9554 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 23 TO 31 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (296174 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
TUESDAY
MOSTLY CLEAR. LOWS 45 TO 55. HIGHS 70 TO 80. WEST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 14 TO 21 PCT.
WEDNESDAY
CLEAR. LOWS 44 TO 54. HIGHS 77 TO 87. LIGHT WINDS.
MINIMUM HUMIDITY 7 TO 12 PCT.
THURSDAY
PARTLY CLOUDY. LOWS 49 TO 59. HIGHS 79 TO 89. SOUTH
WIND AROUND 15 MPH. MINIMUM HUMIDITY 7 TO 14 PCT.
FRIDAY
MOSTLY CLEAR. LOWS 48 TO 58. HIGHS 75 TO 85.
SATURDAY
CLEAR. LOWS 45 TO 55. HIGHS 78 TO 88.
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-
221 AM MST SUN APR 12 2026
...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 8 PM MST
THIS EVENING...
TODAY
* SKY/WEATHER..............MOSTLY SUNNY (15-25 PCT) THEN BECOMING
PARTLY CLOUDY (35-45 PCT). PATCHY
BLOWING DUST.
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........72 TO 82 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MIN HUMIDITY.............10 TO 20 PCT.
24 HR TREND...........DOWN 5 TO 9 PCT.
* WIND (20 FT/10-MIN AVG)..WINDY. SOUTHWEST 20 TO 30 MPH.
* 10000 FT MSL WIND........SOUTHWEST 30 TO 35 MPH.
* MIXING HEIGHT............6824 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 25 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (170600 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLOUDY (50-60 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........47 TO 57 DEGS.
24 HR TREND...........UP 2 TO 5 DEGS.
* MAX HUMIDITY.............47 TO 57 PCT.
24 HR TREND...........DOWN 3 TO 7 PCT.
* WIND (20 FT/10-MIN AVG)..BREEZY. SOUTHWEST AROUND 25 MPH
DECREASING TO AROUND 15 MPH AFTER
MIDNIGHT.
* 10000 FT MSL WIND........SOUTHWEST 35 TO 40 MPH.
MONDAY
* SKY/WEATHER..............MOSTLY CLOUDY (45-55 PCT). SLIGHT CHANCE
OF SHOWERS.
* CHANCE OF PRECIP.........10 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........68 TO 78 DEGS.
24 HR TREND...........DOWN 2 TO 5 DEGS.
* MIN HUMIDITY.............23 TO 33 PCT.
24 HR TREND...........UP 11 TO 15 PCT.
* WIND (20 FT/10-MIN AVG)..WINDY. SOUTHWEST 20 TO 30 MPH.
* 10000 FT MSL WIND........SOUTHWEST 35 TO 40 MPH.
* MIXING HEIGHT............7028 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 27 TO 35 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (245980 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
TUESDAY
MOSTLY CLEAR. LOWS 41 TO 51. HIGHS 66 TO 76. WEST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 15 TO 25 PCT.
WEDNESDAY
CLEAR. LOWS 38 TO 48. HIGHS 71 TO 81. LIGHT WINDS.
MINIMUM HUMIDITY 8 TO 14 PCT.
THURSDAY
PARTLY CLOUDY. LOWS 43 TO 53. HIGHS 73 TO 83. SOUTH
WIND AROUND 15 MPH. MINIMUM HUMIDITY 8 TO 13 PCT.
FRIDAY
MOSTLY CLEAR. LOWS 41 TO 51. HIGHS 70 TO 80.
SATURDAY
CLEAR. LOWS 39 TO 49. HIGHS 72 TO 82.
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-
221 AM MST SUN APR 12 2026
...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 8 PM MST
THIS EVENING...
TODAY
* 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..........73 TO 83 DEGS.
24 HR TREND...........DOWN 1 DEG.
* MIN HUMIDITY.............8 TO 18 PCT.
24 HR TREND...........DOWN 4 TO 8 PCT.
* WIND (20 FT/10-MIN AVG)..BREEZY. SOUTH AROUND 20 MPH SHIFTING TO
THE SOUTHWEST IN THE AFTERNOON.
* 10000 FT MSL WIND........SOUTHWEST 25 TO 30 MPH.
* MIXING HEIGHT............10284 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 23 TO 25 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (257100 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLOUDY (45-55 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........46 TO 56 DEGS.
24 HR TREND...........UP 4 TO 8 DEGS.
* MAX HUMIDITY.............43 TO 53 PCT.
24 HR TREND...........DOWN 8 TO 12 PCT.
* WIND (20 FT/10-MIN AVG)..BREEZY. SOUTHWEST AROUND 25 MPH
DECREASING TO AROUND 15 MPH AFTER
MIDNIGHT.
* 10000 FT MSL WIND........SOUTHWEST 30 TO 35 MPH.
MONDAY
* SKY/WEATHER..............PARTLY CLOUDY (45-55 PCT) THEN BECOMING
MOSTLY CLOUDY (50-60 PCT). SLIGHT CHANCE
OF SHOWERS.
* CHANCE OF PRECIP.........10 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........70 TO 80 DEGS.
24 HR TREND...........DOWN 3 TO 7 DEGS.
* MIN HUMIDITY.............20 TO 30 PCT.
24 HR TREND...........UP 8 TO 12 PCT.
* WIND (20 FT/10-MIN AVG)..WINDY. SOUTH AROUND 20 MPH INCREASING TO
SOUTHWEST AROUND 30 MPH IN THE
AFTERNOON.
* 10000 FT MSL WIND........SOUTHWEST 30 TO 35 MPH.
* MIXING HEIGHT............11012 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 25 TO 32 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (352384 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
TUESDAY
MOSTLY CLEAR. LOWS 42 TO 52. HIGHS 66 TO 76. WEST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 15 TO 25 PCT.
WEDNESDAY
CLEAR. LOWS 37 TO 47. HIGHS 70 TO 80. LIGHT WINDS.
MINIMUM HUMIDITY 8 TO 14 PCT.
THURSDAY
PARTLY CLOUDY. LOWS 41 TO 51. HIGHS 73 TO 83.
SOUTHWEST WIND AROUND 15 MPH. MINIMUM HUMIDITY 6 TO 12 PCT.
FRIDAY
MOSTLY CLEAR. LOWS 41 TO 51. HIGHS 71 TO 81.
SATURDAY
CLEAR. LOWS 38 TO 48. HIGHS 71 TO 81.
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-
221 AM MST SUN APR 12 2026
TODAY
* 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..........61 TO 71 DEGS.
24 HR TREND...........DOWN 3 TO 7 DEGS.
* MIN HUMIDITY.............12 TO 22 PCT.
24 HR TREND...........DOWN 8 TO 12 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST 10 TO 20 MPH.
* 10000 FT MSL WIND........SOUTHWEST 25 TO 30 MPH.
* MIXING HEIGHT............9685 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 22 TO 27 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (261495 KNOT-FT).
TONIGHT
* SKY/WEATHER..............PARTLY CLOUDY (45-55 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........37 TO 47 DEGS.
24 HR TREND...........DOWN 1 DEG.
* MAX HUMIDITY.............51 TO 61 PCT.
24 HR TREND...........DOWN 6 TO 10 PCT.
* WIND (20 FT/10-MIN AVG)..WEST AROUND 20 MPH DECREASING TO AROUND
10 MPH AFTER MIDNIGHT.
* 10000 FT MSL WIND........SOUTHWEST 30 TO 35 MPH.
MONDAY
* SKY/WEATHER..............PARTLY CLOUDY (30-40 PCT) THEN BECOMING
MOSTLY CLOUDY (55-65 PCT).
* CHANCE OF PRECIP.........10 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........58 TO 68 DEGS.
24 HR TREND...........DOWN 3 TO 7 DEGS.
* MIN HUMIDITY.............24 TO 34 PCT.
24 HR TREND...........UP 9 TO 13 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST 15 TO 20 MPH.
* 10000 FT MSL WIND........SOUTHWEST 30 TO 35 MPH.
* MIXING HEIGHT............9657 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 24 TO 31 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (299367 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
TUESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS. LOWS 35 TO 45. HIGHS
54 TO 64. WEST WIND AROUND 15 MPH. MINIMUM HUMIDITY 18 TO 28 PCT.
WEDNESDAY
CLEAR. LOWS 31 TO 41. HIGHS 59 TO 69. LIGHT WINDS.
MINIMUM HUMIDITY 10 TO 18 PCT.
THURSDAY
PARTLY CLOUDY. LOWS 36 TO 46. HIGHS 61 TO 71.
SOUTHWEST WIND AROUND 15 MPH. MINIMUM HUMIDITY 8 TO 15 PCT.
FRIDAY
MOSTLY CLEAR. LOWS 35 TO 45. HIGHS 59 TO 69.
SATURDAY
CLEAR. LOWS 32 TO 42. HIGHS 61 TO 71.
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-
221 AM MST SUN APR 12 2026
TODAY
* 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..........63 TO 73 DEGS.
24 HR TREND...........DOWN 2 TO 5 DEGS.
* MIN HUMIDITY.............13 TO 23 PCT.
24 HR TREND...........DOWN 5 TO 9 PCT.
* WIND (20 FT/10-MIN AVG)..BREEZY. SOUTHWEST 15 TO 25 MPH.
* 10000 FT MSL WIND........SOUTHWEST 30 TO 35 MPH.
* MIXING HEIGHT............10285 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 26 TO 27 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (272552 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLOUDY (45-55 PCT) THEN BECOMING
PARTLY CLOUDY (40-50 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........43 TO 53 DEGS.
24 HR TREND...........UP 1 DEG.
* MAX HUMIDITY.............46 TO 56 PCT.
24 HR TREND...........DOWN 4 TO 8 PCT.
* WIND (20 FT/10-MIN AVG)..BREEZY. SOUTHWEST AROUND 25 MPH
DECREASING TO AROUND 15 MPH AFTER
MIDNIGHT.
* 10000 FT MSL WIND........SOUTHWEST 35 TO 40 MPH.
MONDAY
* SKY/WEATHER..............PARTLY CLOUDY (40-50 PCT) THEN BECOMING
MOSTLY CLOUDY (50-60 PCT). SLIGHT CHANCE
OF SHOWERS.
* CHANCE OF PRECIP.........20 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........60 TO 70 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MIN HUMIDITY.............26 TO 36 PCT.
24 HR TREND...........UP 11 TO 15 PCT.
* WIND (20 FT/10-MIN AVG)..WINDY. SOUTHWEST 20 TO 30 MPH.
* 10000 FT MSL WIND........SOUTHWEST 35 TO 40 MPH.
* MIXING HEIGHT............10830 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 29 TO 35 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (346560 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
TUESDAY
MOSTLY CLEAR. LOWS 38 TO 48. HIGHS 57 TO 67. WEST WIND
AROUND 20 MPH. MINIMUM HUMIDITY 20 TO 30 PCT.
WEDNESDAY
CLEAR. LOWS 35 TO 45. HIGHS 61 TO 71. LIGHT WINDS.
MINIMUM HUMIDITY 8 TO 18 PCT.
THURSDAY
PARTLY CLOUDY. LOWS 40 TO 50. HIGHS 64 TO 74.
SOUTHWEST WIND AROUND 15 MPH. MINIMUM HUMIDITY 8 TO 15 PCT.
FRIDAY
MOSTLY CLEAR. LOWS 39 TO 49. HIGHS 62 TO 72.
SATURDAY
CLEAR. LOWS 37 TO 47. HIGHS 63 TO 73.
NOTE TO USERS - ZONE 154 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE AVERAGE ACROSS THE ZONE
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