116
FNUS55 KTWC 160913
FWFTWC
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST ARIZONA
NATIONAL WEATHER SERVICE TUCSON AZ
213 AM MST TUE SEP 16 2025
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
20-FOOT WIND FORECAST OF 'LIGHT WINDS' INDICATES MAINLY
TERRAIN DRIVEN WINDS
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
DISCUSSION
MOISTURE WILL BE ON THE INCREASE THIS WEEK LEADING
TO MIN RH 20-40 PERCENT THROUGH THE WEEKEND. THANKS TO THE
MOISTURE EXPECT DAILY THUNDERSTORM CHANCES THROUGH FRIDAY. TODAY
STORMS START FROM TUCSON SOUTH AND EASTWARD THEN SPREAD TO
CENTRAL PIMA COUNTY EARLY THIS EVENING. THEREAFTER CHANCES WILL
BE AREA WIDE GENERALLY 30-60 PERCENT. THIS WEEKEND STORMS CHANCES
DECREASE, BUT STILL LINGER AROUND 15-20 PERCENT. 20-FOOT WINDS
WILL BE 8-12 MPH WITH SOME AFTERNOON/EARLY EVENING GUSTS TO AROUND
20 MPH OVER THE NEXT WEEK. WIND DIRECTION WILL BE EASTERLY TODAY
THEN RETURN TO NORMAL DIURNAL PATTERNS THROUGH THE WEEKEND.
AZZ150-162215-
ARIZONA FIRE WEATHER ZONE 150
SONORAN FDRA-MOST OF PIMA COUNTY-SOUTH CENTRAL PINAL COUNTY-
TOHONO O'ODHAM NATION-TUCSON METROPOLITAN AREA-TDC-
213 AM MST TUE SEP 16 2025
TODAY
* SKY/WEATHER..............MOSTLY SUNNY (20-30 PCT) THEN BECOMING
PARTLY CLOUDY (40-50 PCT). SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS.
* CHANCE OF PRECIP.........20 PCT.
* CHANCE OF THUNDER........20 PCT.
* MAX TEMPERATURE..........93 TO 103 DEGS.
24 HR TREND...........DOWN 1 DEG.
* MIN HUMIDITY.............22 TO 32 PCT.
24 HR TREND...........UP 4 TO 8 PCT.
* WIND (20 FT/10-MIN AVG)..LIGHT WINDS BECOMING NORTHWEST AROUND 10
MPH IN THE AFTERNOON.
* 10000 FT MSL WIND........SOUTHEAST 5 TO 10 MPH.
* MIXING HEIGHT............10683 FT AGL.
* TRANSPORT WINDS..........SOUTH 7 KNOTS SHIFTING TO THE NORTHEAST
8 KNOTS IN THE AFTERNOON.
* VENTILATION CATEGORY.....VERY GOOD (85464 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLOUDY (50-60 PCT). CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE EVENING.
* CHANCE OF PRECIP.........30 PCT.
* CHANCE OF THUNDER........30 PCT.
* MIN TEMPERATURE..........70 TO 80 DEGS.
24 HR TREND...........UP 1 DEG.
* MAX HUMIDITY.............64 TO 74 PCT.
24 HR TREND...........UP 4 TO 8 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTH AROUND 10 MPH.
* 10000 FT MSL WIND........NORTHEAST 10 TO 15 MPH.
WEDNESDAY
* SKY/WEATHER..............MOSTLY CLOUDY (55-65 PCT). CHANCE
OF SHOWERS AND THUNDERSTORMS.
* CHANCE OF PRECIP.........30 PCT.
* CHANCE OF THUNDER........30 PCT.
* MAX TEMPERATURE..........88 TO 98 DEGS.
24 HR TREND...........DOWN 3 TO 7 DEGS.
* MIN HUMIDITY.............33 TO 43 PCT.
24 HR TREND...........UP 9 TO 13 PCT.
* WIND (20 FT/10-MIN AVG)..LIGHT WINDS.
* 10000 FT MSL WIND........EAST 10 TO 15 MPH.
* MIXING HEIGHT............8529 FT AGL.
* TRANSPORT WINDS..........SOUTH 10 KNOTS SHIFTING TO THE SOUTHWEST
8 KNOTS IN THE AFTERNOON.
* VENTILATION CATEGORY.....GOOD (68232 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
THURSDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS 69 TO 79. HIGHS 87 TO 97. LIGHT WINDS. MINIMUM HUMIDITY
33 TO 43 PCT.
FRIDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS 68 TO 78. HIGHS 87 TO 97. LIGHT WINDS. MINIMUM HUMIDITY
34 TO 44 PCT.
SATURDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 68 TO 78. HIGHS 89 TO 99. LIGHT WINDS.
MINIMUM HUMIDITY 27 TO 37 PCT.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 68 TO 78. HIGHS 90 TO 100.
MONDAY
MOSTLY CLEAR. LOWS 67 TO 77. HIGHS 91 TO 101.
NOTE TO USERS - ZONE 150 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE TUCSON INTERNATIONAL AIRPORT
LOCATION (2550 MSL)
AZZ151-162215-
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-
213 AM MST TUE SEP 16 2025
TODAY
* SKY/WEATHER..............PARTLY CLOUDY (35-45 PCT) THEN BECOMING
MOSTLY CLOUDY (45-55 PCT). CHANCE OF
SHOWERS AND THUNDERSTORMS.
* CHANCE OF PRECIP.........50 PCT.
* CHANCE OF THUNDER........50 PCT.
* MAX TEMPERATURE..........85 TO 95 DEGS.
24 HR TREND...........DOWN 1 DEG.
* MIN HUMIDITY.............28 TO 38 PCT.
24 HR TREND...........UP 4 TO 8 PCT.
* WIND (20 FT/10-MIN AVG)..LIGHT WINDS BECOMING SOUTHEAST AROUND 10
MPH IN THE AFTERNOON.
* 10000 FT MSL WIND........SOUTHEAST 5 TO 10 MPH.
* MIXING HEIGHT............9107 FT AGL.
* TRANSPORT WINDS..........SOUTHEAST 7 TO 8 KNOTS.
* VENTILATION CATEGORY.....VERY GOOD (72856 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLOUDY (60-70 PCT). CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE EVENING.
* CHANCE OF PRECIP.........40 PCT.
* CHANCE OF THUNDER........40 PCT.
* MIN TEMPERATURE..........62 TO 72 DEGS.
24 HR TREND...........LITTLE CHANGE.
* MAX HUMIDITY.............75 TO 85 PCT.
24 HR TREND...........UP 8 TO 12 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHEAST AROUND 10 MPH.
* 10000 FT MSL WIND........EAST 10 TO 15 MPH.
WEDNESDAY
* SKY/WEATHER..............MOSTLY CLOUDY (60-70 PCT). CHANCE OF
SHOWERS AND THUNDERSTORMS.
* CHANCE OF PRECIP.........50 PCT.
* CHANCE OF THUNDER........50 PCT.
* MAX TEMPERATURE..........81 TO 91 DEGS.
24 HR TREND...........DOWN 3 TO 7 DEGS.
* MIN HUMIDITY.............36 TO 46 PCT.
24 HR TREND...........UP 7 TO 11 PCT.
* WIND (20 FT/10-MIN AVG)..LIGHT WINDS.
* 10000 FT MSL WIND........EAST 5 TO 10 MPH.
* MIXING HEIGHT............6061 FT AGL.
* TRANSPORT WINDS..........SOUTHEAST 7 KNOTS.
* VENTILATION CATEGORY.....GOOD (42427 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
THURSDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS 61 TO 71. HIGHS 81 TO 91. LIGHT WINDS. MINIMUM HUMIDITY
37 TO 47 PCT.
FRIDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS 60 TO 70. HIGHS 81 TO 91. LIGHT WINDS. MINIMUM HUMIDITY
39 TO 49 PCT.
SATURDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 60 TO 70. HIGHS 83 TO 93. LIGHT WINDS.
MINIMUM HUMIDITY 33 TO 43 PCT.
SUNDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 61 TO 71. HIGHS 83 TO 93.
MONDAY
MOSTLY CLEAR. LOWS 59 TO 69. HIGHS 85 TO 95.
NOTE TO USERS - ZONE 151 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE BUENOS AIRES N.W.R. LOCATION
(3500 MSL)
AZZ152-162215-
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-
213 AM MST TUE SEP 16 2025
TODAY
* SKY/WEATHER..............PARTLY CLOUDY (45-55 PCT) THEN BECOMING
MOSTLY CLOUDY (45-55 PCT). CHANCE OF
SHOWERS AND THUNDERSTORMS.
* CHANCE OF PRECIP.........50 PCT.
* CHANCE OF THUNDER........50 PCT.
* MAX TEMPERATURE..........84 TO 94 DEGS.
24 HR TREND...........DOWN 1 DEG.
* MIN HUMIDITY.............28 TO 38 PCT.
24 HR TREND...........UP 4 TO 8 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHEAST AROUND 10 MPH.
* 10000 FT MSL WIND........SOUTHEAST 10 TO 15 MPH.
* MIXING HEIGHT............6291 FT AGL.
* TRANSPORT WINDS..........SOUTHEAST 8 TO 9 KNOTS.
* VENTILATION CATEGORY.....GOOD (56619 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLOUDY (60-70 PCT). CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE EVENING.
* CHANCE OF PRECIP.........40 PCT.
* CHANCE OF THUNDER........40 PCT.
* MIN TEMPERATURE..........60 TO 70 DEGS.
24 HR TREND...........DOWN 1 DEG.
* MAX HUMIDITY.............74 TO 84 PCT.
24 HR TREND...........UP 7 TO 11 PCT.
* WIND (20 FT/10-MIN AVG)..EAST AROUND 10 MPH.
* 10000 FT MSL WIND........SOUTHEAST 5 TO 10 MPH.
WEDNESDAY
* SKY/WEATHER..............MOSTLY CLOUDY (60-70 PCT). CHANCE OF
SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS.
* CHANCE OF PRECIP.........40 PCT.
* CHANCE OF THUNDER........40 PCT.
* MAX TEMPERATURE..........80 TO 90 DEGS.
24 HR TREND...........DOWN 2 TO 5 DEGS.
* MIN HUMIDITY.............33 TO 43 PCT.
24 HR TREND...........UP 3 TO 7 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHEAST AROUND 10 MPH.
* 10000 FT MSL WIND........EAST 5 TO 10 MPH.
* MIXING HEIGHT............4429 FT AGL.
* TRANSPORT WINDS..........SOUTHEAST 7 TO 8 KNOTS.
* VENTILATION CATEGORY.....FAIR (35432 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
THURSDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS 60 TO 70. HIGHS 80 TO 90. LIGHT WINDS. MINIMUM HUMIDITY
34 TO 44 PCT.
FRIDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS 59 TO 69. HIGHS 81 TO 91. LIGHT WINDS. MINIMUM HUMIDITY
36 TO 46 PCT.
SATURDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 59 TO 69. HIGHS 83 TO 93. LIGHT WINDS.
MINIMUM HUMIDITY 30 TO 40 PCT.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 59 TO 69. HIGHS 83 TO 93.
MONDAY
MOSTLY CLEAR. LOWS 58 TO 68. HIGHS 84 TO 94.
NOTE TO USERS - ZONE 152 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE CHIRICAHUA N.M. LOCATION (5400 MSL)
AZZ153-162215-
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-
213 AM MST TUE SEP 16 2025
TODAY
* SKY/WEATHER..............MOSTLY SUNNY (15-25 PCT) THEN BECOMING
MOSTLY CLOUDY (55-65 PCT). CHANCE OF
SHOWERS AND THUNDERSTORMS.
* CHANCE OF PRECIP.........60 PCT.
* CHANCE OF THUNDER........60 PCT.
* MAX TEMPERATURE..........73 TO 83 DEGS.
24 HR TREND...........DOWN 1 DEG.
* MIN HUMIDITY.............36 TO 46 PCT.
24 HR TREND...........UP 7 TO 11 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHEAST AROUND 10 MPH SHIFTING TO THE
SOUTH IN THE AFTERNOON.
* 10000 FT MSL WIND........SOUTH 10 TO 15 MPH.
* MIXING HEIGHT............8112 FT AGL.
* TRANSPORT WINDS..........EAST 8 KNOTS SHIFTING TO THE SOUTH 9
KNOTS IN THE AFTERNOON.
* VENTILATION CATEGORY.....VERY GOOD (73008 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLOUDY (60-70 PCT). CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE EVENING.
* CHANCE OF PRECIP.........30 PCT.
* CHANCE OF THUNDER........30 PCT.
* MIN TEMPERATURE..........52 TO 62 DEGS.
24 HR TREND...........DOWN 1 DEG.
* MAX HUMIDITY.............73 TO 83 PCT.
24 HR TREND...........UP 4 TO 8 PCT.
* WIND (20 FT/10-MIN AVG)..EAST AROUND 10 MPH.
* 10000 FT MSL WIND........SOUTH 5 TO 10 MPH.
WEDNESDAY
* SKY/WEATHER..............MOSTLY CLOUDY (55-65 PCT). CHANCE OF
SHOWERS AND THUNDERSTORMS.
* CHANCE OF PRECIP.........40 PCT.
* CHANCE OF THUNDER........40 PCT.
* MAX TEMPERATURE..........71 TO 81 DEGS.
24 HR TREND...........DOWN 1 TO 4 DEGS.
* MIN HUMIDITY.............39 TO 49 PCT.
24 HR TREND...........LITTLE CHANGE.
* WIND (20 FT/10-MIN AVG)..LIGHT WINDS BECOMING SOUTHWEST AROUND 10
MPH IN THE AFTERNOON.
* 10000 FT MSL WIND........SOUTHEAST AROUND 5 MPH SHIFTING TO THE
SOUTH IN THE AFTERNOON.
* MIXING HEIGHT............6853 FT AGL.
* TRANSPORT WINDS..........EAST 8 KNOTS SHIFTING TO THE SOUTH IN
THE AFTERNOON.
* VENTILATION CATEGORY.....GOOD (54824 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
THURSDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS 52 TO 62. HIGHS 70 TO 80. LIGHT WINDS. MINIMUM HUMIDITY
34 TO 44 PCT.
FRIDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS 52 TO 62. HIGHS 70 TO 80. LIGHT WINDS. MINIMUM HUMIDITY
42 TO 52 PCT.
SATURDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 50 TO 60. HIGHS 72 TO 82. LIGHT WINDS.
MINIMUM HUMIDITY 35 TO 45 PCT.
SUNDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 50 TO 60. HIGHS 73 TO 83.
MONDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 49 TO 59. HIGHS 75 TO 85.
NOTE TO USERS - ZONE 153 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE POINT OF PINES LOCATION (6040 MSL)
AZZ154-162215-
ARIZONA FIRE WEATHER ZONE 154
FOREST WOODLANDS FDRA INCLUDING THE SKY ISLANDS OF SOUTHEAST
ARIZONA ABOVE 5500 FEET-CORONADO NF-TDC-
213 AM MST TUE SEP 16 2025
TODAY
* SKY/WEATHER..............PARTLY CLOUDY (40-50 PCT) THEN BECOMING
MOSTLY CLOUDY (65-75 PCT). CHANCE OF
SHOWERS AND THUNDERSTORMS.
* CHANCE OF PRECIP.........50 PCT.
* CHANCE OF THUNDER........50 PCT.
* MAX TEMPERATURE..........73 TO 83 DEGS.
24 HR TREND...........DOWN 1 DEG.
* MIN HUMIDITY.............40 TO 50 PCT.
24 HR TREND...........UP 4 TO 8 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHEAST AROUND 10 MPH.
* 10000 FT MSL WIND........SOUTHEAST 10 TO 15 MPH.
* MIXING HEIGHT............7564 FT AGL.
* TRANSPORT WINDS..........SOUTHEAST 9 TO 10 KNOTS.
* VENTILATION CATEGORY.....VERY GOOD (71858 KNOT-FT).
TONIGHT
* SKY/WEATHER..............MOSTLY CLOUDY (70-80 PCT). CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE EVENING.
* CHANCE OF PRECIP.........40 PCT.
* CHANCE OF THUNDER........40 PCT.
* MIN TEMPERATURE..........55 TO 65 DEGS.
24 HR TREND...........DOWN 1 DEG.
* MAX HUMIDITY.............73 TO 83 PCT.
24 HR TREND...........UP 7 TO 11 PCT.
* WIND (20 FT/10-MIN AVG)..SOUTHEAST AROUND 10 MPH.
* 10000 FT MSL WIND........SOUTHEAST 5 TO 10 MPH.
WEDNESDAY
* SKY/WEATHER..............MOSTLY CLOUDY (65-75 PCT). CHANCE OF
SHOWERS AND THUNDERSTORMS.
* CHANCE OF PRECIP.........50 PCT.
* CHANCE OF THUNDER........50 PCT.
* MAX TEMPERATURE..........70 TO 80 DEGS.
24 HR TREND...........DOWN 3 TO 6 DEGS.
* MIN HUMIDITY.............49 TO 59 PCT.
24 HR TREND...........UP 6 TO 10 PCT.
* WIND (20 FT/10-MIN AVG)..LIGHT WINDS BECOMING SOUTHEAST AROUND 10
MPH IN THE AFTERNOON.
* 10000 FT MSL WIND........EAST 5 TO 10 MPH.
* MIXING HEIGHT............6011 FT AGL.
* TRANSPORT WINDS..........SOUTHEAST 7 KNOTS.
* VENTILATION CATEGORY.....GOOD (42077 KNOT-FT).
FORECAST DAYS 3 THROUGH 7...
WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
THURSDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS 55 TO 65. HIGHS 70 TO 80. LIGHT WINDS. MINIMUM HUMIDITY
46 TO 56 PCT.
FRIDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS 54 TO 64. HIGHS 71 TO 81. LIGHT WINDS. MINIMUM HUMIDITY
47 TO 57 PCT.
SATURDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 54 TO 64. HIGHS 72 TO 82. LIGHT WINDS.
MINIMUM HUMIDITY 41 TO 51 PCT.
SUNDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 55 TO 65. HIGHS 73 TO 83.
MONDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 54 TO 64. 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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