Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Tucson, AZ

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6
332
FNUS55 KTWC 170951
FWFTWC

Fire Weather Planning Forecast for Southeast Arizona
National Weather Service Tucson AZ
251 AM MST Thu Apr 17 2025

...RED FLAG WARNING IN EFFECT FROM 10 AM THIS MORNING TO 8 PM MST
THIS EVENING...

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
    20-FOOT WIND FORECAST OF `LIGHT WINDS` INDICATES MAINLY
    TERRAIN DRIVEN WINDS
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

.DISCUSSION...

A Red Flag Warning remains in effect today for zones 151, 152, 153
and 154. Winds turn from south to southwest late this morning and
increase to 25 to 35 mph with gusts up to 50 mph. Near critical
fire weather conditions expected in zones to the west with
somewhat lower winds and modestly higher minimum relative
humidities. Cooler temperatures and moisture move in from the west
Friday across most of southeastern Arizona. However, periods of critical
fire weather conditions possible across the eastern half of
Cochise County Friday afternoon. Cooler temperatures areawide
Friday and Saturday, with a slight chance of light precipitation
across the eastern half of the forecast area Friday night and
Saturday and greater chances to the north through the White
Mountains. A warming trend then starts Sunday and continues into
early next week, as high temperatures warm to above normal levels.

AZZ150-172215-
Arizona Fire Weather Zone 150
Sonoran FDRA-Most of Pima County-South Central Pinal County-
Tohono O`odham Nation-Tucson Metropolitan area-TDC-
251 AM MST Thu Apr 17 2025

.TODAY...
* Sky/Weather..............Mostly sunny (15-25 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Max Temperature..........71 to 81 degs.
     24 hr Trend...........Down 7 to 11 degs.
* Min Humidity.............17 to 27 pct.
     24 hr Trend...........Up 11 to 15 pct.
* Wind (20 ft/10-min avg)..Southwest 10 to 20 mph.
* 10000 ft MSL Wind........Southwest around 45 mph decreasing to
                           around 30 mph in the afternoon.
* Mixing height............8063 ft AGL.
* Transport winds..........Southwest 18 to 22 knots.
* Ventilation Category.....Excellent (177386 knot-ft).

.TONIGHT...
* Sky/Weather..............Partly cloudy (20-30 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Min Temperature..........43 to 53 degs.
     24 hr Trend...........Down 3 to 7 degs.
* Max Humidity.............67 to 77 pct.
     24 hr Trend...........Up 11 to 15 pct.
* Wind (20 ft/10-min avg)..Southwest 15 to 20 mph.
* 10000 ft MSL Wind........Southwest 25 to 30 mph.

.FRIDAY...
* Sky/Weather..............Partly cloudy (25-35 pct) then becoming
                           mostly sunny (15-25 pct).
* Chance of Precip.........10 pct.
* Chance of Thunder........0 pct.
* Max Temperature..........68 to 78 degs.
     24 hr Trend...........Down 3 to 6 degs.
* Min Humidity.............21 to 31 pct.
     24 hr Trend...........Up 4 to 8 pct.
* Wind (20 ft/10-min avg)..Southwest 15 to 20 mph.
* 10000 ft MSL Wind........West 20 to 25 mph.
* Mixing height............8917 ft AGL.
* Transport winds..........Southwest 16 to 19 knots.
* Ventilation Category.....Excellent (169423 knot-ft).

.Forecast days 3 through 7......
Winds in Days 3 through 5 are surface 20 ft/10-min avg
.SATURDAY...Mostly clear. Lows 45 to 55. Highs 68 to 78. West
wind around 15 mph. Minimum Humidity 8 to 18 pct.
.SUNDAY...Clear. Lows 43 to 53. Highs 77 to 87. Light winds.
Minimum Humidity 5 to 11 pct.
.MONDAY...Mostly clear. Lows 48 to 58. Highs 82 to 92. Light
winds. Minimum Humidity 4 to 8 pct.
.TUESDAY...Clear. Lows 50 to 60. Highs 82 to 92.
.WEDNESDAY...Clear. Lows 50 to 60. Highs 82 to 92.

NOTE TO USERS - ZONE 150 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE TUCSON INTERNATIONAL AIRPORT
LOCATION (2550 MSL)

$$

AZZ151-172215-
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-
251 AM MST Thu Apr 17 2025

...RED FLAG WARNING IN EFFECT FROM 10 AM THIS MORNING TO 8 PM MST
THIS EVENING...

.TODAY...
* Sky/Weather..............Mostly sunny (15-25 pct). Patchy blowing
                           dust.
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Max Temperature..........69 to 79 degs.
     24 hr Trend...........Down 8 to 12 degs.
* Min Humidity.............13 to 23 pct.
     24 hr Trend...........Up 8 to 12 pct.
* Wind (20 ft/10-min avg)..Breezy. Southwest 15 to 25 mph.
* 10000 ft MSL Wind........Southwest around 50 mph decreasing to
                           around 40 mph in the afternoon.
* Mixing height............5848 ft AGL.
* Transport winds..........Southwest 27 to 33 knots.
* Ventilation Category.....Excellent (192984 knot-ft).

.TONIGHT...
* Sky/Weather..............Partly cloudy (35-45 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Min Temperature..........38 to 48 degs.
     24 hr Trend...........Down 4 to 8 degs.
* Max Humidity.............57 to 67 pct.
     24 hr Trend...........Up 23 to 27 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.

.FRIDAY...
* Sky/Weather..............Partly cloudy (20-30 pct) then becoming
                           mostly sunny (20-30 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Max Temperature..........63 to 73 degs.
     24 hr Trend...........Down 3 to 7 degs.
* Min Humidity.............22 to 32 pct.
     24 hr Trend...........Up 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............6975 ft AGL.
* Transport winds..........Southwest 21 to 25 knots.
* Ventilation Category.....Excellent (174375 knot-ft).

.Forecast days 3 through 7......
Winds in Days 3 through 5 are surface 20 ft/10-min avg
.SATURDAY...Partly cloudy. Slight chance of showers. Lows 38 to
48. Highs 62 to 72. West wind around 15 mph. Minimum Humidity
13 to 23 pct.
.SUNDAY...Clear, warmer. Lows 36 to 46. Highs 73 to 83. Light
winds. Minimum Humidity 6 to 13 pct.
.MONDAY...Mostly clear. Lows 43 to 53. Highs 77 to 87. Southwest
wind around 15 mph. Minimum Humidity 5 to 10 pct.
.TUESDAY...Clear. Lows 44 to 54. Highs 77 to 87.
.WEDNESDAY...Clear. Lows 44 to 54. Highs 77 to 87.

NOTE TO USERS - ZONE 151 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE BUENOS AIRES N.W.R. LOCATION
(3500 MSL)

$$

AZZ152-172215-
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-
251 AM MST Thu Apr 17 2025

...RED FLAG WARNING IN EFFECT FROM 10 AM THIS MORNING TO 8 PM MST
THIS EVENING...

.TODAY...
* Sky/Weather..............Mostly sunny (20-30 pct). Patchy blowing
                           dust.
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Max Temperature..........72 to 82 degs.
     24 hr Trend...........Down 7 to 11 degs.
* Min Humidity.............9 to 19 pct.
     24 hr Trend...........Up 4 to 8 pct.
* Wind (20 ft/10-min avg)..Windy. Southwest 20 to 30 mph.
* 10000 ft MSL Wind........Southwest around 50 mph decreasing to
                           around 40 mph in the afternoon.
* Mixing height............9614 ft AGL.
* Transport winds..........Southwest 29 knots increasing to 40
                           knots in the afternoon.
* Ventilation Category.....Excellent (384560 knot-ft).

.TONIGHT...
* Sky/Weather..............Partly cloudy (45-55 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Min Temperature..........40 to 50 degs.
     24 hr Trend...........Down 3 to 7 degs.
* Max Humidity.............43 to 53 pct.
     24 hr Trend...........Up 20 to 24 pct.
* Wind (20 ft/10-min avg)..Windy. West around 30 mph decreasing to
                           around 15 mph after midnight.
* 10000 ft MSL Wind........Southwest 35 to 40 mph.

.FRIDAY...
* Sky/Weather..............Partly cloudy (40-50 pct) then becoming
                           mostly sunny (20-30 pct). Patchy blowing
                           dust.
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Max Temperature..........65 to 75 degs.
     24 hr Trend...........Down 5 to 9 degs.
* Min Humidity.............18 to 28 pct.
     24 hr Trend...........Up 7 to 11 pct.
* Wind (20 ft/10-min avg)..Breezy. Southwest 15 to 25 mph.
* 10000 ft MSL Wind........Southwest around 35 mph decreasing to
                           around 25 mph in the afternoon.
* Mixing height............9863 ft AGL.
* Transport winds..........Southwest 22 to 28 knots.
* Ventilation Category.....Excellent (276164 knot-ft).

.Forecast days 3 through 7......
Winds in Days 3 through 5 are surface 20 ft/10-min avg
.SATURDAY...Partly cloudy. Chance of showers. Lows 39 to 49.
Highs 61 to 71. West wind around 15 mph. Minimum Humidity 13 to
23 pct.
.SUNDAY...Clear. Lows 35 to 45. Highs 71 to 81. Light winds.
Minimum Humidity 6 to 13 pct.
.MONDAY...Mostly clear. Lows 42 to 52. Highs 77 to 87. Southwest
wind around 15 mph. Minimum Humidity 5 to 9 pct.
.TUESDAY...Mostly clear. Lows 44 to 54. Highs 77 to 87.
.WEDNESDAY...Clear. Lows 44 to 54. Highs 78 to 88.

NOTE TO USERS - ZONE 152 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE CHIRICAHUA N.M. LOCATION (5400 MSL)

$$

AZZ153-172215-
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-
251 AM MST Thu Apr 17 2025

...RED FLAG WARNING IN EFFECT FROM 10 AM THIS MORNING TO 8 PM MST
THIS EVENING...

.TODAY...
* Sky/Weather..............Mostly sunny (15-25 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Max Temperature..........60 to 70 degs.
     24 hr Trend...........Down 8 to 12 degs.
* Min Humidity.............10 to 20 pct.
     24 hr Trend...........Up 3 to 7 pct.
* Wind (20 ft/10-min avg)..Breezy. Southwest 15 to 25 mph.
* 10000 ft MSL Wind........Southwest around 40 mph decreasing to
                           around 30 mph in the afternoon.
* Mixing height............7148 ft AGL.
* Transport winds..........Southwest 30 to 36 knots.
* Ventilation Category.....Excellent (257328 knot-ft).

.TONIGHT...
* Sky/Weather..............Mostly clear (20-30 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Min Temperature..........32 to 42 degs.
     24 hr Trend...........Down 4 to 8 degs.
* Max Humidity.............62 to 72 pct.
     24 hr Trend...........Up 42 to 46 pct.
* Wind (20 ft/10-min avg)..West around 20 mph decreasing to around
                           10 mph after midnight.
* 10000 ft MSL Wind........Southwest 25 to 30 mph.

.FRIDAY...
* Sky/Weather..............Partly cloudy (30-40 pct). Slight chance
                           of showers.
* Chance of Precip.........20 pct.
* Chance of Thunder........0 pct.
* Max Temperature..........52 to 62 degs.
     24 hr Trend...........Down 5 to 9 degs.
* Min Humidity.............22 to 32 pct.
     24 hr Trend...........Up 11 to 15 pct.
* Wind (20 ft/10-min avg)..Southwest 15 to 20 mph.
* 10000 ft MSL Wind........Southwest 25 to 30 mph.
* Mixing height............8749 ft AGL.
* Transport winds..........West 23 to 30 knots.
* Ventilation Category.....Excellent (262470 knot-ft).

.Forecast days 3 through 7......
Winds in Days 3 through 5 are surface 20 ft/10-min avg
.SATURDAY...Partly cloudy. Chance of showers and snow showers.
Lows 31 to 41. Highs 47 to 57. West wind around 15 mph. Minimum
Humidity 20 to 30 pct.
.SUNDAY...Clear, warmer. Lows 28 to 38. Highs 60 to 70. Light
winds. Minimum Humidity 9 to 17 pct.
.MONDAY...Partly cloudy. Lows 36 to 46. Highs 65 to 75. Northwest
wind around 15 mph. Minimum Humidity 7 to 13 pct.
.TUESDAY...Mostly clear. Lows 38 to 48. Highs 67 to 77.
.WEDNESDAY...Mostly clear. Lows 38 to 48. Highs 67 to 77.

NOTE TO USERS - ZONE 153 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE POINT OF PINES LOCATION (6040 MSL)

$$

AZZ154-172215-
Arizona Fire Weather Zone 154
Forest Woodlands FDRA including the Sky Islands of Southeast
Arizona above 5500 feet-Coronado NF-TDC-
251 AM MST Thu Apr 17 2025

...RED FLAG WARNING IN EFFECT FROM 10 AM THIS MORNING TO 8 PM MST
THIS EVENING...

.TODAY...
* Sky/Weather..............Mostly sunny (10-20 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Max Temperature..........62 to 72 degs.
     24 hr Trend...........Down 6 to 10 degs.
* Min Humidity.............12 to 22 pct.
     24 hr Trend...........Up 7 to 11 pct.
* Wind (20 ft/10-min avg)..Windy. Southwest 20 to 30 mph.
* 10000 ft MSL Wind........Southwest around 55 mph decreasing to
                           around 40 mph in the afternoon.
* Mixing height............10125 ft AGL.
* Transport winds..........Southwest 33 knots increasing to 43
                           knots in the afternoon.
* Ventilation Category.....Excellent (435375 knot-ft).

.TONIGHT...
* Sky/Weather..............Partly cloudy (40-50 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Min Temperature..........36 to 46 degs.
     24 hr Trend...........Down 6 to 10 degs.
* Max Humidity.............44 to 54 pct.
     24 hr Trend...........Up 19 to 23 pct.
* Wind (20 ft/10-min avg)..Windy. Southwest around 30 mph
                           decreasing to around 20 mph after
                           midnight.
* 10000 ft MSL Wind........Southwest 40 to 45 mph.

.FRIDAY...
* Sky/Weather..............Partly cloudy (35-45 pct) then becoming
                           mostly sunny (15-25 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Max Temperature..........55 to 65 degs.
     24 hr Trend...........Down 5 to 9 degs.
* Min Humidity.............22 to 32 pct.
     24 hr Trend...........Up 8 to 12 pct.
* Wind (20 ft/10-min avg)..Breezy. Southwest 15 to 25 mph.
* 10000 ft MSL Wind........Southwest around 35 mph decreasing to
                           around 25 mph in the afternoon.
* Mixing height............11182 ft AGL.
* Transport winds..........Southwest 26 to 30 knots.
* Ventilation Category.....Excellent (313096 knot-ft).

.Forecast days 3 through 7......
Winds in Days 3 through 5 are surface 20 ft/10-min avg
.SATURDAY...Partly cloudy. Chance of showers. Lows 35 to 45.
Highs 51 to 61. West wind around 20 mph. Minimum Humidity 18 to
28 pct.
.SUNDAY...Clear, warmer. Lows 33 to 43. Highs 62 to 72. Light
winds. Minimum Humidity 7 to 16 pct.
.MONDAY...Mostly clear. Lows 41 to 51. Highs 67 to 77. Southwest
wind around 15 mph. Minimum Humidity 5 to 11 pct.
.TUESDAY...Clear. Lows 42 to 52. Highs 67 to 77.
.WEDNESDAY...Clear. Lows 43 to 53. Highs 67 to 77.

NOTE TO USERS - ZONE 154 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE AVERAGE ACROSS THE ZONE

$$


Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson