462
FNUS55 KTWC 200948
FWFTWC
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST ARIZONA
NATIONAL WEATHER SERVICE TUCSON AZ
248 AM MST FRI MAR 20 2026
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
20-FOOT WIND FORECAST OF 'LIGHT WINDS' INDICATES MAINLY
TERRAIN DRIVEN WINDS
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
DISCUSSION
A UNSEASONABLY STRONG RIDGE OF HIGH PRESSURE WILL
RESULT IN RECORD SETTING HIGH TEMPERATURES AND VERY DRY CONDITIONS
THROUGH THIS WEEKEND. SIGNIFICANT HEAT IS FORECAST THROUGH SUNDAY
WITH HIGH TEMPERATURES PUSHING 20 TO 25 DEGREE ABOVE NORMAL.
WINDS THROUGH SATURDAY WILL REMAIN BELOW 10 MPH WITH A FEW
AFTERNOON GUSTS AROUND 20 MPH. BREEZIER CONDITIONS RETURN ON BOTH
SUNDAY AND MONDAY AS THE HIGH PRESSURE BEGINS TO WEAKEN. MINIMUM
RHS 5 TO 15 PERCENT.
AZZ150-202200-
ARIZONA FIRE WEATHER ZONE 150
SONORAN FDRA-MOST OF PIMA COUNTY-SOUTH CENTRAL PINAL COUNTY-
TOHONO O'ODHAM NATION-TUCSON METROPOLITAN AREA-TDC-
248 AM MST FRI MAR 20 2026
TODAY
* SKY/WEATHER..............MOSTLY SUNNY (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........97 TO 107 DEGS.
24 HR TREND...........UP 1 DEG.
* MIN HUMIDITY.............4 TO 8 PCT.
24 HR TREND...........DOWN 1 PCT.
* WIND (20 FT/10-MIN AVG)..LIGHT WINDS BECOMING NORTH AROUND 10 MPH
IN THE AFTERNOON.
* 10000 FT MSL WIND........SOUTH AROUND 5 MPH SHIFTING TO THE WEST
IN THE AFTERNOON.
* MIXING HEIGHT............8765 FT AGL.
* TRANSPORT WINDS..........EAST 7 KNOTS SHIFTING TO THE NORTHWEST 8
KNOTS IN THE AFTERNOON.
* VENTILATION CATEGORY.....VERY GOOD (70120 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLEAR (5-15 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........62 TO 72 DEGS.
24 HR TREND...........UP 2 TO 5 DEGS.
* MAX HUMIDITY.............11 TO 21 PCT.
24 HR TREND...........DOWN 1 TO 4 PCT.
* WIND (20 FT/10-MIN AVG)..NORTH AROUND 10 MPH IN THE EVENING
BECOMING LIGHT.
* 10000 FT MSL WIND........WEST 5 TO 10 MPH.
SATURDAY
* SKY/WEATHER..............SUNNY (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........97 TO 107 DEGS.
24 HR TREND...........DOWN 1 DEG.
* MIN HUMIDITY.............5 TO 8 PCT.
24 HR TREND...........UP 1 PCT.
* WIND (20 FT/10-MIN AVG)..EAST AROUND 10 MPH SHIFTING TO THE
NORTHWEST IN THE AFTERNOON.
* 10000 FT MSL WIND........SOUTHWEST 5 TO 10 MPH.
* MIXING HEIGHT............9965 FT AGL.
* TRANSPORT WINDS..........EAST 6 KNOTS SHIFTING TO THE WEST IN THE
AFTERNOON.
* VENTILATION CATEGORY.....EXCELLENT (109615 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
SUNDAY
MOSTLY CLEAR. LOWS 61 TO 71. HIGHS 93 TO 103. SOUTHWEST
WIND AROUND 15 MPH. MINIMUM HUMIDITY 6 TO 11 PCT.
MONDAY
MOSTLY CLEAR. LOWS 57 TO 67. HIGHS 90 TO 100. LIGHT
WINDS. MINIMUM HUMIDITY 8 TO 18 PCT.
TUESDAY
CLEAR. LOWS 57 TO 67. HIGHS 92 TO 102. LIGHT WINDS.
MINIMUM HUMIDITY 6 TO 14 PCT.
WEDNESDAY
CLEAR. LOWS 58 TO 68. HIGHS 95 TO 105.
THURSDAY
CLEAR. LOWS 59 TO 69. HIGHS 94 TO 104.
NOTE TO USERS - ZONE 150 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE TUCSON INTERNATIONAL AIRPORT
LOCATION (2550 MSL)
AZZ151-202200-
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-
248 AM MST FRI MAR 20 2026
TODAY
* SKY/WEATHER..............SUNNY (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........91 TO 101 DEGS.
24 HR TREND...........UP 1 TO 4 DEGS.
* MIN HUMIDITY.............5 TO 10 PCT.
24 HR TREND...........UP 1 PCT.
* WIND (20 FT/10-MIN AVG)..LIGHT WINDS BECOMING NORTH AROUND 10 MPH
IN THE AFTERNOON.
* 10000 FT MSL WIND........EAST AROUND 5 MPH SHIFTING TO THE WEST
IN THE AFTERNOON.
* MIXING HEIGHT............10550 FT AGL.
* TRANSPORT WINDS..........EAST 7 KNOTS SHIFTING TO THE NORTHWEST 9
KNOTS IN THE AFTERNOON.
* VENTILATION CATEGORY.....VERY GOOD (94950 KNOT-FT).
TONIGHT
* SKY/WEATHER..............CLEAR (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........56 TO 66 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MAX HUMIDITY.............14 TO 24 PCT.
24 HR TREND...........DOWN 3 TO 6 PCT.
* WIND (20 FT/10-MIN AVG)..NORTH AROUND 10 MPH IN THE EVENING
BECOMING LIGHT.
* 10000 FT MSL WIND........NORTHWEST 5 TO 10 MPH.
SATURDAY
* SKY/WEATHER..............SUNNY (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........91 TO 101 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MIN HUMIDITY.............5 TO 10 PCT.
24 HR TREND...........LITTLE CHANGE.
* WIND (20 FT/10-MIN AVG)..LIGHT WINDS BECOMING NORTHWEST AROUND 10
MPH IN THE AFTERNOON.
* 10000 FT MSL WIND........SOUTHWEST 5 TO 10 MPH.
* MIXING HEIGHT............13014 FT AGL.
* TRANSPORT WINDS..........NORTHEAST 7 KNOTS SHIFTING TO THE WEST
IN THE AFTERNOON.
* VENTILATION CATEGORY.....EXCELLENT (156168 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
SUNDAY
MOSTLY CLEAR. LOWS 55 TO 65. HIGHS 88 TO 98. WEST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 6 TO 11 PCT.
MONDAY
MOSTLY CLEAR. LOWS 53 TO 63. HIGHS 86 TO 96. LIGHT
WINDS. MINIMUM HUMIDITY 7 TO 11 PCT.
TUESDAY
CLEAR. LOWS 52 TO 62. HIGHS 87 TO 97. LIGHT WINDS.
MINIMUM HUMIDITY 6 TO 11 PCT.
WEDNESDAY
CLEAR. LOWS 54 TO 64. HIGHS 89 TO 99.
THURSDAY
CLEAR. LOWS 54 TO 64. HIGHS 88 TO 98.
NOTE TO USERS - ZONE 151 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE BUENOS AIRES N.W.R. LOCATION
(3500 MSL)
AZZ152-202200-
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-
248 AM MST FRI MAR 20 2026
TODAY
* SKY/WEATHER..............SUNNY (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........89 TO 99 DEGS.
24 HR TREND...........UP 1 TO 4 DEGS.
* MIN HUMIDITY.............5 TO 10 PCT.
24 HR TREND...........DOWN 1 TO 4 PCT.
* WIND (20 FT/10-MIN AVG)..LIGHT WINDS BECOMING NORTHWEST AROUND 10
MPH IN THE AFTERNOON.
* 10000 FT MSL WIND........NORTHWEST 5 TO 10 MPH.
* MIXING HEIGHT............8181 FT AGL.
* TRANSPORT WINDS..........NORTHEAST 6 KNOTS SHIFTING TO THE
NORTHWEST 9 KNOTS IN THE AFTERNOON.
* VENTILATION CATEGORY.....VERY GOOD (73629 KNOT-FT).
TONIGHT
* SKY/WEATHER..............CLEAR (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........54 TO 64 DEGS.
24 HR TREND...........DOWN 1 TO 4 DEGS.
* MAX HUMIDITY.............16 TO 26 PCT.
24 HR TREND...........DOWN 1 TO 4 PCT.
* WIND (20 FT/10-MIN AVG)..NORTH AROUND 10 MPH.
* 10000 FT MSL WIND........NORTH 5 TO 10 MPH.
SATURDAY
* SKY/WEATHER..............SUNNY (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........90 TO 100 DEGS.
24 HR TREND...........UP 1 TO 4 DEGS.
* MIN HUMIDITY.............5 TO 10 PCT.
24 HR TREND...........UP 1 PCT.
* WIND (20 FT/10-MIN AVG)..EAST AROUND 10 MPH SHIFTING TO THE WEST
IN THE AFTERNOON.
* 10000 FT MSL WIND........WEST 5 TO 10 MPH.
* MIXING HEIGHT............11769 FT AGL.
* TRANSPORT WINDS..........EAST 6 KNOTS SHIFTING TO THE WEST 13
KNOTS IN THE AFTERNOON.
* VENTILATION CATEGORY.....EXCELLENT (152997 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
SUNDAY
MOSTLY CLEAR. LOWS 53 TO 63. HIGHS 87 TO 97. NORTHWEST
WIND AROUND 15 MPH. MINIMUM HUMIDITY 6 TO 11 PCT.
MONDAY
PARTLY CLOUDY. LOWS 53 TO 63. HIGHS 85 TO 95. WEST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 6 TO 10 PCT.
TUESDAY
CLEAR. LOWS 51 TO 61. HIGHS 86 TO 96. LIGHT WINDS.
MINIMUM HUMIDITY 6 TO 11 PCT.
WEDNESDAY
CLEAR. LOWS 52 TO 62. HIGHS 88 TO 98.
THURSDAY
CLEAR. LOWS 53 TO 63. HIGHS 87 TO 97.
NOTE TO USERS - ZONE 152 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE CHIRICAHUA N.M. LOCATION (5400 MSL)
AZZ153-202200-
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-
248 AM MST FRI MAR 20 2026
TODAY
* SKY/WEATHER..............SUNNY (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........81 TO 91 DEGS.
24 HR TREND...........DOWN 1 DEG.
* MIN HUMIDITY.............5 TO 9 PCT.
24 HR TREND...........UP 1 TO 4 PCT.
* WIND (20 FT/10-MIN AVG)..NORTHEAST AROUND 10 MPH SHIFTING TO THE
SOUTHWEST IN THE AFTERNOON.
* 10000 FT MSL WIND........NORTHWEST 5 TO 10 MPH.
* MIXING HEIGHT............9633 FT AGL.
* TRANSPORT WINDS..........NORTHEAST 9 KNOTS SHIFTING TO THE
NORTHWEST 11 KNOTS IN THE AFTERNOON.
* VENTILATION CATEGORY.....EXCELLENT (105963 KNOT-FT).
TONIGHT
* SKY/WEATHER..............CLEAR (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........50 TO 60 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MAX HUMIDITY.............12 TO 22 PCT.
24 HR TREND...........UP 1 PCT.
* WIND (20 FT/10-MIN AVG)..NORTHWEST AROUND 10 MPH SHIFTING TO THE
NORTHEAST AFTER MIDNIGHT.
* 10000 FT MSL WIND........NORTH 5 TO 10 MPH.
SATURDAY
* SKY/WEATHER..............SUNNY (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........80 TO 90 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MIN HUMIDITY.............6 TO 10 PCT.
24 HR TREND...........LITTLE CHANGE.
* WIND (20 FT/10-MIN AVG)..NORTHEAST AROUND 10 MPH SHIFTING TO THE
SOUTHWEST IN THE AFTERNOON.
* 10000 FT MSL WIND........WEST 5 TO 10 MPH.
* MIXING HEIGHT............9370 FT AGL.
* TRANSPORT WINDS..........NORTH 7 KNOTS SHIFTING TO THE WEST 14
KNOTS IN THE AFTERNOON.
* VENTILATION CATEGORY.....EXCELLENT (131180 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
SUNDAY
MOSTLY CLEAR. LOWS 48 TO 58. HIGHS 76 TO 86. NORTHWEST
WIND AROUND 15 MPH. MINIMUM HUMIDITY 7 TO 11 PCT.
MONDAY
MOSTLY CLEAR. LOWS 47 TO 57. HIGHS 74 TO 84. LIGHT
WINDS. MINIMUM HUMIDITY 7 TO 11 PCT.
TUESDAY
CLEAR. LOWS 45 TO 55. HIGHS 77 TO 87. LIGHT WINDS.
MINIMUM HUMIDITY 7 TO 11 PCT.
WEDNESDAY
CLEAR. LOWS 48 TO 58. HIGHS 79 TO 89.
THURSDAY
CLEAR. LOWS 48 TO 58. HIGHS 77 TO 87.
NOTE TO USERS - ZONE 153 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE POINT OF PINES LOCATION (6040 MSL)
AZZ154-202200-
ARIZONA FIRE WEATHER ZONE 154
FOREST WOODLANDS FDRA INCLUDING THE SKY ISLANDS OF SOUTHEAST
ARIZONA ABOVE 5500 FEET-CORONADO NF-TDC-
248 AM MST FRI MAR 20 2026
TODAY
* SKY/WEATHER..............SUNNY (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........80 TO 90 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MIN HUMIDITY.............6 TO 12 PCT.
24 HR TREND...........LITTLE CHANGE.
* WIND (20 FT/10-MIN AVG)..LIGHT WINDS BECOMING NORTH AROUND 10 MPH
IN THE AFTERNOON.
* 10000 FT MSL WIND........NORTHEAST AROUND 5 MPH SHIFTING TO THE
NORTHWEST IN THE AFTERNOON.
* MIXING HEIGHT............10391 FT AGL.
* TRANSPORT WINDS..........NORTHEAST 6 KNOTS SHIFTING TO THE
NORTHWEST 8 KNOTS IN THE AFTERNOON.
* VENTILATION CATEGORY.....VERY GOOD (83128 KNOT-FT).
TONIGHT
* SKY/WEATHER..............CLEAR (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........56 TO 66 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MAX HUMIDITY.............11 TO 20 PCT.
24 HR TREND...........DOWN 1 PCT.
* WIND (20 FT/10-MIN AVG)..NORTH AROUND 10 MPH.
* 10000 FT MSL WIND........NORTHWEST 5 TO 10 MPH.
SATURDAY
* SKY/WEATHER..............SUNNY (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........80 TO 90 DEGS.
24 HR TREND...........UP 1 TO 4 DEGS.
* MIN HUMIDITY.............6 TO 11 PCT.
24 HR TREND...........DOWN 1 PCT.
* WIND (20 FT/10-MIN AVG)..NORTHEAST AROUND 10 MPH SHIFTING TO THE
NORTHWEST IN THE AFTERNOON.
* 10000 FT MSL WIND........WEST 5 TO 10 MPH.
* MIXING HEIGHT............14331 FT AGL.
* TRANSPORT WINDS..........NORTH 6 KNOTS SHIFTING TO THE WEST 12
KNOTS IN THE AFTERNOON.
* VENTILATION CATEGORY.....EXCELLENT (171972 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
SUNDAY
MOSTLY CLEAR. LOWS 54 TO 64. HIGHS 78 TO 88. WEST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 7 TO 12 PCT.
MONDAY
MOSTLY CLEAR. LOWS 52 TO 62. HIGHS 75 TO 85. SOUTHWEST
WIND AROUND 15 MPH. MINIMUM HUMIDITY 7 TO 12 PCT.
TUESDAY
CLEAR. LOWS 51 TO 61. HIGHS 77 TO 87. LIGHT WINDS.
MINIMUM HUMIDITY 7 TO 13 PCT.
WEDNESDAY
CLEAR. LOWS 52 TO 62. HIGHS 79 TO 89.
THURSDAY
CLEAR. LOWS 53 TO 63. HIGHS 78 TO 88.
NOTE TO USERS - ZONE 154 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE AVERAGE ACROSS THE ZONE
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