045
FNUS55 KTWC 130906
FWFTWC
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST ARIZONA
NATIONAL WEATHER SERVICE TUCSON AZ
206 AM MST WED MAY 13 2026
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
20-FOOT WIND FORECAST OF 'LIGHT WINDS' INDICATES MAINLY
TERRAIN DRIVEN WINDS
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
DISCUSSION
AS A WEATHER SYSTEM PASSES TO OUR NORTH,
BREEZY WINDS OF 15-20 MPH ARE EXPECTED THIS AFTERNOON WITH GUSTS TO
25-30 MPH RESULTING IN ELEVATED TO LOCALLY NEAR CRITICAL FIRE
WEATHER CONDITIONS THIS AFTERNOON. STILL ENOUGH MOISTURE ALOFT FOR
FOR SOME CLOUD BUILD-UPS AND A SLIGHT CHANCE (5-15 PERCENT) OF DRY
THUNDERSTORMS AND/OR GUSTY OUTFLOW WINDS NEAR THE NM BORDER THIS
AFTERNOON. DRY CONDITIONS ON THURSDAY WITH BREEZES CONTINUING
ESPECIALLY FOR SOUTHERN COCHISE COUNTY WHERE ELEVATED TO LOCALLY
NEAR CRITICAL FIRE WEATHER CONDITIONS CONTINUE. LESS WIND FRIDAY AND
SATURDAY THEN ANOTHER WEATHER SYSTEM AROUND SUNDAY MAY RESULT IN
FIRE WEATHER CONCERNS THEN. HIGH TEMPERATURES WILL BE 5 TO 10
DEGREES ABOVE NORMAL TODAY, LOWERING TO ABOUT 3 TO 7 DEGREES ABOVE
NORMAL THURSDAY THROUGH SATURDAY WITH ADDITIONAL COOLING
SUNDAY/MONDAY. MIN RELATIVE HUMIDITY VALUES THROUGH THE WEEKEND WILL
GENERALLY BE IN THE 6-14 PERCENT RANGE IN THE VALLEYS AND 10-20
PERCENT IN THE MOUNTAINS.
AZZ150-132300-
ARIZONA FIRE WEATHER ZONE 150
SONORAN FDRA-MOST OF PIMA COUNTY-SOUTH CENTRAL PINAL COUNTY-
TOHONO O'ODHAM NATION-TUCSON METROPOLITAN AREA-TDC-
206 AM MST WED MAY 13 2026
TODAY
* SKY/WEATHER..............PARTLY CLOUDY (35-45 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........91 TO 101 DEGS.
24 HR TREND...........DOWN 3 TO 7 DEGS.
* MIN HUMIDITY.............6 TO 15 PCT.
24 HR TREND...........DOWN 2 TO 5 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTH 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTH 30 TO 35 MPH.
* MIXING HEIGHT............13331 FT AGL.
* TRANSPORT WINDS..........SOUTH 17 TO 25 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (333275 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLEAR (15-25 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........59 TO 69 DEGS.
24 HR TREND...........DOWN 1 TO 4 DEGS.
* MAX HUMIDITY.............24 TO 34 PCT.
24 HR TREND...........UP 3 TO 7 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTH 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTHWEST 20 TO 25 MPH.
THURSDAY
* SKY/WEATHER..............MOSTLY SUNNY (5-15 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........89 TO 99 DEGS.
24 HR TREND...........DOWN 1 TO 4 DEGS.
* MIN HUMIDITY.............6 TO 12 PCT.
24 HR TREND...........UP 1 TO 4 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTH AROUND 10 MPH SHIFTING TO THE WEST
IN THE AFTERNOON.
* 10000 FT MSL WIND........SOUTHWEST 15 TO 20 MPH.
* MIXING HEIGHT............11680 FT AGL.
* TRANSPORT WINDS..........SOUTH 8 KNOTS SHIFTING TO THE WEST 14
KNOTS IN THE AFTERNOON.
* VENTILATION CATEGORY.....EXCELLENT (163520 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
FRIDAY
CLEAR. LOWS 59 TO 69. HIGHS 89 TO 99. LIGHT WINDS.
MINIMUM HUMIDITY 6 TO 11 PCT.
SATURDAY
CLEAR. LOWS 59 TO 69. HIGHS 90 TO 100. SOUTH WIND
AROUND 15 MPH. MINIMUM HUMIDITY 6 TO 12 PCT.
SUNDAY
CLEAR. LOWS 59 TO 69. HIGHS 86 TO 96. SOUTH WIND AROUND
25 MPH. MINIMUM HUMIDITY 10 TO 20 PCT.
MONDAY
MOSTLY CLEAR. LOWS 55 TO 65. HIGHS 84 TO 94.
TUESDAY
MOSTLY CLEAR. LOWS 55 TO 65. HIGHS 88 TO 98.
NOTE TO USERS - ZONE 150 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE TUCSON INTERNATIONAL AIRPORT
LOCATION (2550 MSL)
AZZ151-132300-
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-
206 AM MST WED MAY 13 2026
TODAY
* SKY/WEATHER..............PARTLY CLOUDY (35-45 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........87 TO 97 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MIN HUMIDITY.............8 TO 18 PCT.
24 HR TREND...........UP 1 TO 4 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST 15 TO 20 MPH.
* 10000 FT MSL WIND........SOUTHWEST 15 TO 20 MPH.
* MIXING HEIGHT............9130 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 16 TO 23 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (209990 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLEAR (15-25 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........53 TO 63 DEGS.
24 HR TREND...........DOWN 3 TO 7 DEGS.
* MAX HUMIDITY.............27 TO 37 PCT.
24 HR TREND...........UP 4 TO 8 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST AROUND 20 MPH DECREASING TO
AROUND 10 MPH AFTER MIDNIGHT.
* 10000 FT MSL WIND........SOUTHWEST 25 TO 30 MPH.
THURSDAY
* SKY/WEATHER..............MOSTLY SUNNY (20-30 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........84 TO 94 DEGS.
24 HR TREND...........DOWN 3 TO 7 DEGS.
* MIN HUMIDITY.............8 TO 15 PCT.
24 HR TREND...........DOWN 3 TO 6 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTH AROUND 10 MPH SHIFTING TO THE WEST
IN THE AFTERNOON.
* 10000 FT MSL WIND........SOUTHWEST 20 TO 25 MPH.
* MIXING HEIGHT............10052 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 16 TO 22 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (221144 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
FRIDAY
CLEAR. LOWS 52 TO 62. HIGHS 84 TO 94. SOUTHWEST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 7 TO 14 PCT.
SATURDAY
CLEAR. LOWS 52 TO 62. HIGHS 85 TO 95. SOUTHWEST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 7 TO 12 PCT.
SUNDAY
CLEAR. LOWS 52 TO 62. HIGHS 82 TO 92. SOUTHWEST WIND
AROUND 30 MPH. MINIMUM HUMIDITY 8 TO 15 PCT.
MONDAY
CLEAR. LOWS 49 TO 59. HIGHS 79 TO 89.
TUESDAY
MOSTLY CLEAR. LOWS 49 TO 59. HIGHS 83 TO 93.
NOTE TO USERS - ZONE 151 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE BUENOS AIRES N.W.R. LOCATION
(3500 MSL)
AZZ152-132300-
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-
206 AM MST WED MAY 13 2026
TODAY
* SKY/WEATHER..............PARTLY CLOUDY (40-50 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........88 TO 98 DEGS.
24 HR TREND...........DOWN 1 DEG.
* MIN HUMIDITY.............8 TO 18 PCT.
24 HR TREND...........UP 4 TO 8 PCT.
* WIND (20 FT/10-MIN AVG)..LIGHT WINDS BECOMING SOUTHWEST AROUND 15
MPH IN THE AFTERNOON.
* 10000 FT MSL WIND........SOUTHWEST 10 TO 15 MPH.
* MIXING HEIGHT............12821 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 10 TO 18 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (230778 KNOT-FT).
TONIGHT
* SKY/WEATHER..............PARTLY CLOUDY (30-40 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........55 TO 65 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MAX HUMIDITY.............25 TO 35 PCT.
24 HR TREND...........DOWN 13 TO 17 PCT.
* WIND (20 FT/10-MIN AVG)..WEST AROUND 20 MPH DECREASING TO AROUND
10 MPH AFTER MIDNIGHT.
* 10000 FT MSL WIND........SOUTHWEST 20 TO 25 MPH.
THURSDAY
* SKY/WEATHER..............PARTLY CLOUDY (30-40 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........84 TO 94 DEGS.
24 HR TREND...........DOWN 2 TO 5 DEGS.
* MIN HUMIDITY.............7 TO 14 PCT.
24 HR TREND...........DOWN 3 TO 6 PCT.
* WIND (20 FT/10-MIN AVG)..WEST 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTHWEST 20 TO 25 MPH.
* MIXING HEIGHT............10237 FT AGL.
* TRANSPORT WINDS..........WEST 16 TO 24 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (245688 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
FRIDAY
CLEAR. LOWS 52 TO 62. HIGHS 83 TO 93. WEST WIND AROUND
15 MPH. MINIMUM HUMIDITY 6 TO 13 PCT.
SATURDAY
CLEAR. LOWS 52 TO 62. HIGHS 85 TO 95. WEST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 6 TO 12 PCT.
SUNDAY
CLEAR. LOWS 52 TO 62. HIGHS 82 TO 92. SOUTHWEST WIND
AROUND 25 MPH. MINIMUM HUMIDITY 7 TO 13 PCT.
MONDAY
CLEAR. LOWS 50 TO 60. HIGHS 80 TO 90.
TUESDAY
MOSTLY CLEAR. LOWS 49 TO 59. HIGHS 82 TO 92.
NOTE TO USERS - ZONE 152 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE CHIRICAHUA N.M. LOCATION (5400 MSL)
AZZ153-132300-
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-
206 AM MST WED MAY 13 2026
TODAY
* SKY/WEATHER..............PARTLY CLOUDY (40-50 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........77 TO 87 DEGS.
24 HR TREND...........DOWN 2 TO 5 DEGS.
* MIN HUMIDITY.............13 TO 23 PCT.
24 HR TREND...........UP 3 TO 7 PCT.
* WIND (20 FT/10-MIN AVG)..LIGHT WINDS BECOMING SOUTHWEST AROUND 15
MPH IN THE AFTERNOON.
* 10000 FT MSL WIND........SOUTHWEST AROUND 10 MPH INCREASING TO
AROUND 20 MPH IN THE AFTERNOON.
* MIXING HEIGHT............13015 FT AGL.
* TRANSPORT WINDS..........WEST 16 KNOTS SHIFTING TO THE SOUTHWEST
19 KNOTS IN THE AFTERNOON.
* VENTILATION CATEGORY.....EXCELLENT (247285 KNOT-FT).
TONIGHT
* SKY/WEATHER..............PARTLY CLOUDY (25-35 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........49 TO 59 DEGS.
24 HR TREND...........DOWN 3 TO 7 DEGS.
* MAX HUMIDITY.............24 TO 34 PCT.
24 HR TREND...........DOWN 8 TO 12 PCT.
* WIND (20 FT/10-MIN AVG)..WEST AROUND 15 MPH IN THE EVENING
BECOMING LIGHT.
* 10000 FT MSL WIND........SOUTHWEST AROUND 25 MPH DECREASING TO
AROUND 15 MPH AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER..............MOSTLY SUNNY (0-10 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........74 TO 84 DEGS.
24 HR TREND...........DOWN 3 TO 6 DEGS.
* MIN HUMIDITY.............8 TO 15 PCT.
24 HR TREND...........DOWN 3 TO 7 PCT.
* WIND (20 FT/10-MIN AVG)..WEST 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTHWEST 15 TO 20 MPH.
* MIXING HEIGHT............8762 FT AGL.
* TRANSPORT WINDS..........WEST 14 TO 16 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (140192 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
FRIDAY
CLEAR. LOWS 46 TO 56. HIGHS 74 TO 84. WEST WIND AROUND
15 MPH. MINIMUM HUMIDITY 8 TO 14 PCT.
SATURDAY
CLEAR. LOWS 47 TO 57. HIGHS 74 TO 84. WEST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 8 TO 14 PCT.
SUNDAY
CLEAR. LOWS 44 TO 54. HIGHS 72 TO 82. WEST WIND AROUND
25 MPH. MINIMUM HUMIDITY 8 TO 15 PCT.
MONDAY
MOSTLY CLEAR. LOWS 43 TO 53. HIGHS 70 TO 80.
TUESDAY
MOSTLY CLEAR. LOWS 42 TO 52. HIGHS 73 TO 83.
NOTE TO USERS - ZONE 153 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE POINT OF PINES LOCATION (6040 MSL)
AZZ154-132300-
ARIZONA FIRE WEATHER ZONE 154
FOREST WOODLANDS FDRA INCLUDING THE SKY ISLANDS OF SOUTHEAST
ARIZONA ABOVE 5500 FEET-CORONADO NF-TDC-
206 AM MST WED MAY 13 2026
TODAY
* SKY/WEATHER..............PARTLY CLOUDY (35-45 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........78 TO 88 DEGS.
24 HR TREND...........DOWN 1 TO 4 DEGS.
* MIN HUMIDITY.............13 TO 23 PCT.
24 HR TREND...........UP 2 TO 5 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST AROUND 10 MPH INCREASING TO
AROUND 20 MPH IN THE AFTERNOON.
* 10000 FT MSL WIND........SOUTHWEST 10 TO 15 MPH.
* MIXING HEIGHT............14184 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 13 TO 20 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (234036 KNOT-FT).
TONIGHT
* SKY/WEATHER..............PARTLY CLOUDY (30-40 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........53 TO 63 DEGS.
24 HR TREND...........DOWN 3 TO 7 DEGS.
* MAX HUMIDITY.............23 TO 33 PCT.
24 HR TREND...........DOWN 1 PCT.
* WIND (20 FT/10-MIN AVG)..WEST AROUND 20 MPH BECOMING SOUTHWEST
AROUND 10 MPH AFTER MIDNIGHT.
* 10000 FT MSL WIND........SOUTHWEST 25 TO 30 MPH.
THURSDAY
* SKY/WEATHER..............PARTLY CLOUDY (30-40 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........74 TO 84 DEGS.
24 HR TREND...........DOWN 1 TO 4 DEGS.
* MIN HUMIDITY.............9 TO 18 PCT.
24 HR TREND...........DOWN 3 TO 7 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST 10 TO 15 MPH.
* 10000 FT MSL WIND........SOUTHWEST 20 TO 25 MPH.
* MIXING HEIGHT............11050 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 20 TO 27 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (259675 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
FRIDAY
CLEAR. LOWS 50 TO 60. HIGHS 74 TO 84. SOUTHWEST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 8 TO 16 PCT.
SATURDAY
CLEAR. LOWS 50 TO 60. HIGHS 75 TO 85. SOUTHWEST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 8 TO 16 PCT.
SUNDAY
CLEAR. LOWS 50 TO 60. HIGHS 73 TO 83. SOUTHWEST WIND
AROUND 30 MPH. MINIMUM HUMIDITY 9 TO 17 PCT.
MONDAY
CLEAR. LOWS 47 TO 57. HIGHS 71 TO 81.
TUESDAY
MOSTLY CLEAR. LOWS 47 TO 57. HIGHS 74 TO 84.
NOTE TO USERS - ZONE 154 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE AVERAGE ACROSS THE ZONE
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