219
FNUS55 KTWC 220716
FWFTWC
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST ARIZONA
NATIONAL WEATHER SERVICE TUCSON AZ
1216 AM MST WED APR 22 2026
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
20-FOOT WIND FORECAST OF 'LIGHT WINDS' INDICATES MAINLY
TERRAIN DRIVEN WINDS
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
DISCUSSION
WARM AND DRY INTO THE WEEKEND. MINIMUM RHS WILL
GENERALLY BE IN THE 10-20 PERCENT AREAWIDE THROUGH SATURDAY,
THEN INCREASE TO 10-25 PERCENT IN THE VALLEYS AND 25-35 PERCENT
IN MOUNTAINS SUNDAY AS WEATHER DISTURBANCE MOVES INTO THE AREA.
PASSING SYSTEMS TO THE NORTH WILL KEEP SOUTHEAST ARIZONA DRY,
WITH BREEZY TO LOCALLY WINDY WEST WINDS INTO THE WEEKEND. THERE
IS A 20-40 PERCENT PROBABILITY THAT AREAS ALONG THE ARIZONA/NEW
MEXICO BORDER WILL REACH ELEVATED TO NEAR CRITICAL FIRE WEATHER
CONDITIONS THURSDAY. THE STRONGEST WINDS ARE EXPECTED SATURDAY.
AZZ150-222230-
ARIZONA FIRE WEATHER ZONE 150
SONORAN FDRA-MOST OF PIMA COUNTY-SOUTH CENTRAL PINAL COUNTY-
TOHONO O'ODHAM NATION-TUCSON METROPOLITAN AREA-TDC-
1216 AM MST WED APR 22 2026
TODAY
* SKY/WEATHER..............MOSTLY SUNNY (10-20 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........80 TO 90 DEGS.
24 HR TREND...........DOWN 3 TO 7 DEGS.
* MIN HUMIDITY.............9 TO 17 PCT.
24 HR TREND...........UP 1 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST 10 TO 15 MPH WITH GUSTS TO
25 MPH IN THE AFTERNOON.
* 10000 FT MSL WIND........SOUTHWEST 20 TO 25 MPH.
* MIXING HEIGHT............10052 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 11 TO 17 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (170884 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLEAR (15-25 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........49 TO 59 DEGS.
24 HR TREND...........DOWN 1 DEG.
* MAX HUMIDITY.............36 TO 46 PCT.
24 HR TREND...........UP 5 TO 9 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST 10 TO 15 MPH.
* 10000 FT MSL WIND........WEST 20 TO 25 MPH.
THURSDAY
* SKY/WEATHER..............MOSTLY SUNNY (20-30 PCT) THEN BECOMING
PARTLY CLOUDY (40-50 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.............9 TO 16 PCT.
24 HR TREND...........DOWN 1 TO 4 PCT.
* WIND (20 FT/10-MIN AVG)..WEST 10 TO 15 MPH WITH GUSTS TO 30 MPH
IN THE AFTERNOON.
* 10000 FT MSL WIND........WEST 30 TO 35 MPH.
* MIXING HEIGHT............8304 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 9 TO 17 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (141168 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
FRIDAY
MOSTLY CLEAR. LOWS 49 TO 59. HIGHS 82 TO 92. SOUTHWEST
WIND AROUND 15 MPH. MINIMUM HUMIDITY 7 TO 14 PCT.
SATURDAY
PARTLY CLOUDY. LOWS 54 TO 64. HIGHS 78 TO 88. SOUTH
WIND AROUND 25 MPH. MINIMUM HUMIDITY 13 TO 23 PCT.
SUNDAY
MOSTLY CLEAR. LOWS 48 TO 58. HIGHS 74 TO 84. WEST WIND
AROUND 20 MPH. MINIMUM HUMIDITY 14 TO 22 PCT.
MONDAY
MOSTLY CLEAR. LOWS 46 TO 56. HIGHS 80 TO 90.
TUESDAY
PARTLY CLOUDY. LOWS 51 TO 61. HIGHS 80 TO 90.
NOTE TO USERS - ZONE 150 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE TUCSON INTERNATIONAL AIRPORT
LOCATION (2550 MSL)
AZZ151-222230-
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-
1216 AM MST WED APR 22 2026
...ELEVATED TO NEAR CRITICAL FIRE WEATHER CONDITIONS TODAY AND
THURSDAY...
TODAY
* SKY/WEATHER..............MOSTLY SUNNY (5-15 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........76 TO 86 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MIN HUMIDITY.............10 TO 17 PCT.
24 HR TREND...........DOWN 1 PCT.
* WIND (20 FT/10-MIN AVG)..WEST 10 TO 20 MPH WITH GUSTS TO 30 MPH
IN THE AFTERNOON.
* 10000 FT MSL WIND........SOUTHWEST 20 TO 25 MPH.
* MIXING HEIGHT............7768 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 14 TO 18 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (139824 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLEAR (10-20 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........43 TO 53 DEGS.
24 HR TREND...........DOWN 2 TO 5 DEGS.
* MAX HUMIDITY.............40 TO 50 PCT.
24 HR TREND...........UP 14 TO 18 PCT.
* WIND (20 FT/10-MIN AVG)..WEST AROUND 20 MPH BECOMING SOUTHWEST
AROUND 10 MPH AFTER MIDNIGHT.
* 10000 FT MSL WIND........SOUTHWEST AROUND 20 MPH INCREASING TO
WEST AROUND 30 MPH AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER..............MOSTLY SUNNY (10-20 PCT) THEN BECOMING
PARTLY CLOUDY (40-50 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.............10 TO 18 PCT.
24 HR TREND...........LITTLE CHANGE.
* WIND (20 FT/10-MIN AVG)..WEST 15 TO 20 MPH WITH GUSTS TO 35 MPH
IN THE AFTERNOON.
* 10000 FT MSL WIND........WEST 25 TO 30 MPH.
* MIXING HEIGHT............6614 FT AGL.
* TRANSPORT WINDS..........WEST 14 TO 23 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (152122 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
FRIDAY
MOSTLY CLEAR. LOWS 44 TO 54. HIGHS 77 TO 87. SOUTHWEST
WIND AROUND 15 MPH. MINIMUM HUMIDITY 9 TO 15 PCT.
SATURDAY
PARTLY CLOUDY. LOWS 46 TO 56. HIGHS 75 TO 85.
SOUTHWEST WIND AROUND 25 MPH. MINIMUM HUMIDITY 11 TO 18 PCT.
SUNDAY
MOSTLY CLEAR. LOWS 43 TO 53. HIGHS 70 TO 80. SOUTHWEST
WIND AROUND 25 MPH. MINIMUM HUMIDITY 16 TO 26 PCT.
MONDAY
MOSTLY CLEAR. LOWS 40 TO 50. HIGHS 76 TO 86.
TUESDAY
PARTLY CLOUDY. LOWS 46 TO 56. HIGHS 76 TO 86.
NOTE TO USERS - ZONE 151 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE BUENOS AIRES N.W.R. LOCATION
(3500 MSL)
AZZ152-222230-
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-
1216 AM MST WED APR 22 2026
...ELEVATED TO NEAR CRITICAL FIRE WEATHER CONDITIONS TODAY AND
THURSDAY...
TODAY
* SKY/WEATHER..............MOSTLY SUNNY (15-25 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........76 TO 86 DEGS.
24 HR TREND...........DOWN 1 TO 4 DEGS.
* MIN HUMIDITY.............8 TO 17 PCT.
24 HR TREND...........LITTLE CHANGE.
* WIND (20 FT/10-MIN AVG)..WEST 15 TO 20 MPH WITH GUSTS TO 30 MPH
IN THE AFTERNOON.
* 10000 FT MSL WIND........SOUTHWEST 20 TO 25 MPH.
* MIXING HEIGHT............9575 FT AGL.
* TRANSPORT WINDS..........WEST 14 TO 20 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (191500 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLEAR (15-25 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........43 TO 53 DEGS.
24 HR TREND...........DOWN 4 TO 8 DEGS.
* MAX HUMIDITY.............37 TO 47 PCT.
24 HR TREND...........UP 4 TO 8 PCT.
* WIND (20 FT/10-MIN AVG)..WEST 15 TO 20 MPH.
* 10000 FT MSL WIND........SOUTHWEST 25 TO 30 MPH.
THURSDAY
* SKY/WEATHER..............MOSTLY SUNNY (10-20 PCT) THEN BECOMING
PARTLY CLOUDY (35-45 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........74 TO 84 DEGS.
24 HR TREND...........DOWN 1 DEG.
* MIN HUMIDITY.............9 TO 19 PCT.
24 HR TREND...........DOWN 1 TO 4 PCT.
* WIND (20 FT/10-MIN AVG)..WEST 15 TO 20 MPH WITH GUSTS TO 35 MPH
IN THE AFTERNOON.
* 10000 FT MSL WIND........WEST 30 TO 35 MPH.
* MIXING HEIGHT............8848 FT AGL.
* TRANSPORT WINDS..........WEST 17 TO 26 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (230048 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
FRIDAY
MOSTLY CLEAR. LOWS 43 TO 53. HIGHS 76 TO 86. WEST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 7 TO 14 PCT.
SATURDAY
PARTLY CLOUDY. LOWS 45 TO 55. HIGHS 76 TO 86.
SOUTHWEST WIND AROUND 25 MPH. MINIMUM HUMIDITY 9 TO 17 PCT.
SUNDAY
MOSTLY CLEAR. LOWS 44 TO 54. HIGHS 71 TO 81. WEST WIND
AROUND 25 MPH. MINIMUM HUMIDITY 14 TO 24 PCT.
MONDAY
MOSTLY CLEAR. LOWS 40 TO 50. HIGHS 75 TO 85.
TUESDAY
PARTLY CLOUDY. LOWS 45 TO 55. HIGHS 76 TO 86.
NOTE TO USERS - ZONE 152 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE CHIRICAHUA N.M. LOCATION (5400 MSL)
AZZ153-222230-
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-
1216 AM MST WED APR 22 2026
...ELEVATED TO NEAR CRITICAL FIRE WEATHER CONDITIONS TODAY AND
THURSDAY...
TODAY
* SKY/WEATHER..............MOSTLY SUNNY (15-25 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........65 TO 75 DEGS.
24 HR TREND...........DOWN 1 TO 4 DEGS.
* MIN HUMIDITY.............10 TO 18 PCT.
24 HR TREND...........DOWN 1 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST TO WEST 15 TO 20 MPH WITH
GUSTS TO 30 MPH IN THE AFTERNOON.
* 10000 FT MSL WIND........SOUTHWEST 20 TO 25 MPH.
* MIXING HEIGHT............7402 FT AGL.
* TRANSPORT WINDS..........WEST 19 TO 21 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (155442 KNOT-FT).
TONIGHT
* SKY/WEATHER..............PARTLY CLOUDY (20-30 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........38 TO 48 DEGS.
24 HR TREND...........DOWN 2 TO 5 DEGS.
* MAX HUMIDITY.............35 TO 45 PCT.
24 HR TREND...........UP 3 TO 7 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.
THURSDAY
* SKY/WEATHER..............MOSTLY SUNNY (5-15 PCT) THEN BECOMING
PARTLY CLOUDY (30-40 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........62 TO 72 DEGS.
24 HR TREND...........DOWN 3 TO 6 DEGS.
* MIN HUMIDITY.............11 TO 19 PCT.
24 HR TREND...........UP 1 PCT.
* WIND (20 FT/10-MIN AVG)..WEST 15 TO 20 MPH WITH GUSTS TO 35 MPH
IN THE AFTERNOON.
* 10000 FT MSL WIND........WEST 30 TO 35 MPH.
* MIXING HEIGHT............7454 FT AGL.
* TRANSPORT WINDS..........WEST 24 TO 28 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (208712 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
FRIDAY
MOSTLY CLEAR. LOWS 37 TO 47. HIGHS 65 TO 75. WEST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 9 TO 15 PCT.
SATURDAY
PARTLY CLOUDY. LOWS 40 TO 50. HIGHS 63 TO 73. WEST
WIND AROUND 20 MPH. MINIMUM HUMIDITY 12 TO 21 PCT.
SUNDAY
MOSTLY CLEAR. LOWS 38 TO 48. HIGHS 58 TO 68. WEST WIND
AROUND 25 MPH. MINIMUM HUMIDITY 17 TO 27 PCT.
MONDAY
CLEAR. LOWS 33 TO 43. HIGHS 64 TO 74.
TUESDAY
PARTLY CLOUDY. LOWS 39 TO 49. HIGHS 65 TO 75.
NOTE TO USERS - ZONE 153 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE POINT OF PINES LOCATION (6040 MSL)
AZZ154-222230-
ARIZONA FIRE WEATHER ZONE 154
FOREST WOODLANDS FDRA INCLUDING THE SKY ISLANDS OF SOUTHEAST
ARIZONA ABOVE 5500 FEET-CORONADO NF-TDC-
1216 AM MST WED APR 22 2026
...ELEVATED TO NEAR CRITICAL FIRE WEATHER CONDITIONS TODAY AND
THURSDAY...
TODAY
* SKY/WEATHER..............MOSTLY SUNNY (10-20 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MAX TEMPERATURE..........67 TO 77 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MIN HUMIDITY.............10 TO 20 PCT.
24 HR TREND...........DOWN 1 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHWEST TO WEST 15 TO 20 MPH WITH
GUSTS TO 30 MPH IN THE AFTERNOON.
* 10000 FT MSL WIND........SOUTHWEST 20 TO 25 MPH.
* MIXING HEIGHT............9470 FT AGL.
* TRANSPORT WINDS..........SOUTHWEST 16 TO 19 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (165725 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLEAR (15-25 PCT).
* CHANCE OF PRECIP.........0 PCT.
* CHANCE OF THUNDER........0 PCT.
* MIN TEMPERATURE..........41 TO 51 DEGS.
24 HR TREND...........DOWN 2 TO 5 DEGS.
* MAX HUMIDITY.............35 TO 45 PCT.
24 HR TREND...........UP 1 PCT.
* WIND (20 FT/10-MIN AVG)..WEST 15 TO 20 MPH.
* 10000 FT MSL WIND........SOUTHWEST 25 TO 30 MPH.
THURSDAY
* 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..........65 TO 75 DEGS.
24 HR TREND...........DOWN 3 TO 6 DEGS.
* MIN HUMIDITY.............11 TO 21 PCT.
24 HR TREND...........DOWN 1 PCT.
* WIND (20 FT/10-MIN AVG)..WEST 15 TO 20 MPH WITH GUSTS TO 35-40
MPH IN THE AFTERNOON.
* 10000 FT MSL WIND........WEST 30 TO 35 MPH.
* MIXING HEIGHT............9885 FT AGL.
* TRANSPORT WINDS..........WEST 19 TO 28 KNOTS.
* VENTILATION CATEGORY.....EXCELLENT (232297 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
FRIDAY
MOSTLY CLEAR. LOWS 41 TO 51. HIGHS 67 TO 77. WEST WIND
AROUND 15 MPH. MINIMUM HUMIDITY 10 TO 17 PCT.
SATURDAY
PARTLY CLOUDY. LOWS 44 TO 54. HIGHS 66 TO 76.
SOUTHWEST WIND AROUND 25 MPH. MINIMUM HUMIDITY 11 TO 20 PCT.
SUNDAY
MOSTLY CLEAR. LOWS 42 TO 52. HIGHS 62 TO 72. SOUTHWEST
WIND AROUND 30 MPH. MINIMUM HUMIDITY 18 TO 28 PCT.
MONDAY
MOSTLY CLEAR. LOWS 38 TO 48. HIGHS 66 TO 76.
TUESDAY
PARTLY CLOUDY. LOWS 44 TO 54. HIGHS 67 TO 77.
NOTE TO USERS - ZONE 154 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE AVERAGE ACROSS THE ZONE
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