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

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134
FNUS55 KTWC 222151
FWFTWC

Fire Weather Planning Forecast for Southeast Arizona
National Weather Service Tucson AZ
251 PM MST Thu May 22 2025

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

.DISCUSSION...Occasionally gusty winds continue into this
evening. Stronger winds are expected Friday as a weather system
approaches the area. At this time, wind speeds should stay below
critical fire weather thresholds (Southwest 15-20 mph with gusts
to 30-35 mph). Single digit min RH values at all elevations over
the next week with poor overnight recoveries.

There is the potential for some mid-level moisture to move into
far eastern areas (east of Tucson) by the middle of next week.
This may lead to some afternoon buildups and/or isolated dry
lightning strikes Tuesday through Thursday next week.

AZZ150-231300-
Arizona Fire Weather Zone 150
Sonoran FDRA-Most of Pima County-South Central Pinal County-
Tohono O`odham Nation-Tucson Metropolitan area-TDC-
251 PM MST Thu May 22 2025

.TONIGHT...
* Sky/Weather..............Mostly clear (20-30 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Min Temperature..........60 to 70 degs.
     24 hr Trend...........Little change.
* Max Humidity.............17 to 27 pct.
     24 hr Trend...........Up 1 to 4 pct.
* Wind (20 ft/10-min avg)..Southwest around 15 mph shifting to the
                           south after midnight.
* 10000 ft MSL Wind........Southwest 15 to 20 mph.

.FRIDAY...
* Sky/Weather..............Mostly sunny (10-20 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Max Temperature..........93 to 103 degs.
     24 hr Trend...........Down 2 to 5 degs.
* Min Humidity.............4 to 10 pct.
     24 hr Trend...........Up 1 to 4 pct.
* Wind (20 ft/10-min avg)..South 10 to 15 mph.
* 10000 ft MSL Wind........Southwest 20 to 25 mph.
* Mixing height............11321 ft AGL.
* Transport winds..........South 16 to 21 knots.
* Ventilation Category.....Excellent (237741 knot-ft).

.FRIDAY NIGHT...
* Sky/Weather..............Partly cloudy (25-35 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Min Temperature..........59 to 69 degs.
     24 hr Trend...........Down 1 deg.
* Max Humidity.............17 to 27 pct.
     24 hr Trend...........Up 1 to 4 pct.
* Wind (20 ft/10-min avg)..South 10 to 15 mph.
* 10000 ft MSL Wind........Southwest 15 to 20 mph.

.SATURDAY...
* Sky/Weather..............Partly cloudy (30-40 pct) then becoming
                           mostly sunny (20-30 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Max Temperature..........89 to 99 degs.
     24 hr Trend...........Down 3 to 6 degs.
* Min Humidity.............4 to 14 pct.
     24 hr Trend...........Up 1 to 4 pct.
* Wind (20 ft/10-min avg)..South 10 to 15 mph.
* 10000 ft MSL Wind........Southwest 15 to 20 mph.
* Mixing height............10967 ft AGL.
* Transport winds..........South 16 to 19 knots.
* Ventilation Category.....Excellent (208373 knot-ft).

.Forecast days 3 through 7......
Winds in Days 3 through 5 are surface 20 ft/10-min avg
.SUNDAY...Mostly clear. Lows 56 to 66. Highs 88 to 98. Light
winds. Minimum Humidity 4 to 11 pct.
.MEMORIAL DAY...Mostly clear. Lows 57 to 67. Highs 90 to 100.
Light winds. Minimum Humidity 4 to 10 pct.
.TUESDAY...Mostly clear. Lows 59 to 69. Highs 91 to 101. South
wind around 15 mph. Minimum Humidity 4 to 11 pct.
.WEDNESDAY...Mostly clear. Lows 59 to 69. Highs 91 to 101.
.THURSDAY...Mostly clear. Lows 60 to 70. Highs 92 to 102.

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

$$

AZZ151-231300-
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 PM MST Thu May 22 2025

.TONIGHT...
* Sky/Weather..............Mostly clear (15-25 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Min Temperature..........55 to 65 degs.
     24 hr Trend...........Little change.
* Max Humidity.............17 to 27 pct.
     24 hr Trend...........Up 3 to 6 pct.
* Wind (20 ft/10-min avg)..Southwest 10 to 15 mph.
* 10000 ft MSL Wind........Southwest 15 to 20 mph.

.FRIDAY...
* Sky/Weather..............Mostly sunny (15-25 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Max Temperature..........88 to 98 degs.
     24 hr Trend...........Down 1 to 4 degs.
* Min Humidity.............5 to 9 pct.
     24 hr Trend...........Little change.
* Wind (20 ft/10-min avg)..South 10 to 15 mph.
* 10000 ft MSL Wind........Southwest 20 to 25 mph.
* Mixing height............9138 ft AGL.
* Transport winds..........Southwest 15 to 20 knots.
* Ventilation Category.....Excellent (182760 knot-ft).

.FRIDAY NIGHT...
* Sky/Weather..............Partly cloudy (25-35 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Min Temperature..........53 to 63 degs.
     24 hr Trend...........Down 2 to 5 degs.
* Max Humidity.............20 to 30 pct.
     24 hr Trend...........Up 3 to 6 pct.
* Wind (20 ft/10-min avg)..Southwest 10 to 15 mph.
* 10000 ft MSL Wind........Southwest 20 to 25 mph.

.SATURDAY...
* 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 3 to 6 degs.
* Min Humidity.............5 to 9 pct.
     24 hr Trend...........Little change.
* Wind (20 ft/10-min avg)..South 10 to 15 mph.
* 10000 ft MSL Wind........Southwest 15 to 20 mph.
* Mixing height............8805 ft AGL.
* Transport winds..........South 15 to 20 knots.
* Ventilation Category.....Excellent (176100 knot-ft).

.Forecast days 3 through 7......
Winds in Days 3 through 5 are surface 20 ft/10-min avg
.SUNDAY...Mostly clear. Lows 52 to 62. Highs 82 to 92. Southwest
wind around 15 mph. Minimum Humidity 5 to 10 pct.
.MEMORIAL DAY...Mostly clear. Lows 52 to 62. Highs 85 to 95.
Southwest wind around 15 mph. Minimum Humidity 4 to 9 pct.
.TUESDAY...Mostly clear. Lows 53 to 63. Highs 86 to 96. South
wind around 15 mph. Minimum Humidity 5 to 9 pct.
.WEDNESDAY...Mostly clear. Lows 54 to 64. Highs 87 to 97.
.THURSDAY...Mostly clear. Lows 55 to 65. 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)

$$

AZZ152-231300-
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 PM MST Thu May 22 2025

.TONIGHT...
* Sky/Weather..............Mostly clear (20-30 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Min Temperature..........56 to 66 degs.
     24 hr Trend...........Up 1 deg.
* Max Humidity.............14 to 24 pct.
     24 hr Trend...........Little change.
* Wind (20 ft/10-min avg)..Northwest 10 to 15 mph.
* 10000 ft MSL Wind........Southwest 15 to 20 mph.

.FRIDAY...
* Sky/Weather..............Partly cloudy (30-40 pct) then becoming
                           mostly sunny (15-25 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Max Temperature..........89 to 99 degs.
     24 hr Trend...........Down 1 deg.
* Min Humidity.............4 to 8 pct.
     24 hr Trend...........Little change.
* Wind (20 ft/10-min avg)..Southwest 10 to 15 mph.
* 10000 ft MSL Wind........Southwest 20 to 25 mph.
* Mixing height............11323 ft AGL.
* Transport winds..........Southwest 12 to 20 knots.
* Ventilation Category.....Excellent (226460 knot-ft).

.FRIDAY NIGHT...
* Sky/Weather..............Partly cloudy (25-35 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.............18 to 28 pct.
     24 hr Trend...........Up 3 to 6 pct.
* Wind (20 ft/10-min avg)..Southwest 10 to 15 mph.
* 10000 ft MSL Wind........Southwest 20 to 25 mph.

.SATURDAY...
* Sky/Weather..............Partly cloudy (30-40 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Max Temperature..........85 to 95 degs.
     24 hr Trend...........Down 3 to 6 degs.
* Min Humidity.............4 to 9 pct.
     24 hr Trend...........Little change.
* Wind (20 ft/10-min avg)..Southwest 10 to 15 mph.
* 10000 ft MSL Wind........Southwest 15 to 20 mph.
* Mixing height............10760 ft AGL.
* Transport winds..........Southwest 12 to 19 knots.
* Ventilation Category.....Excellent (204440 knot-ft).

.Forecast days 3 through 7......
Winds in Days 3 through 5 are surface 20 ft/10-min avg
.SUNDAY...Mostly clear. Lows 52 to 62. Highs 83 to 93. West wind
around 15 mph. Minimum Humidity 4 to 9 pct.
.MEMORIAL DAY...Mostly clear. Lows 51 to 61. Highs 85 to 95. West
wind around 15 mph. Minimum Humidity 4 to 9 pct.
.TUESDAY...Mostly clear. Lows 54 to 64. Highs 86 to 96. Southwest
wind around 15 mph. Minimum Humidity 5 to 8 pct.
.WEDNESDAY...Mostly clear. Lows 54 to 64. Highs 87 to 97.
.THURSDAY...Mostly clear. Lows 56 to 66. 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)

$$

AZZ153-231300-
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 PM MST Thu May 22 2025

.TONIGHT...
* Sky/Weather..............Mostly clear (20-30 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Min Temperature..........50 to 60 degs.
     24 hr Trend...........Down 2 to 5 degs.
* Max Humidity.............14 to 24 pct.
     24 hr Trend...........Up 4 to 8 pct.
* Wind (20 ft/10-min avg)..Northwest 10 to 15 mph.
* 10000 ft MSL Wind........Southwest 20 to 25 mph.

.FRIDAY...
* Sky/Weather..............Partly cloudy (25-35 pct) then becoming
                           mostly sunny (10-20 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.............5 to 9 pct.
     24 hr Trend...........Up 1 pct.
* Wind (20 ft/10-min avg)..West 10 to 15 mph.
* 10000 ft MSL Wind........Southwest 20 to 25 mph.
* Mixing height............10280 ft AGL.
* Transport winds..........Southwest 16 to 21 knots.
* Ventilation Category.....Excellent (215880 knot-ft).

.FRIDAY NIGHT...
* Sky/Weather..............Partly cloudy (30-40 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Min Temperature..........48 to 58 degs.
     24 hr Trend...........Down 1 deg.
* Max Humidity.............17 to 27 pct.
     24 hr Trend...........Up 1 to 4 pct.
* Wind (20 ft/10-min avg)..West 10 to 15 mph.
* 10000 ft MSL Wind........Southwest 20 to 25 mph.

.SATURDAY...
* Sky/Weather..............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 3 to 6 degs.
* Min Humidity.............5 to 10 pct.
     24 hr Trend...........Little change.
* Wind (20 ft/10-min avg)..Southwest 10 to 15 mph.
* 10000 ft MSL Wind........Southwest 15 to 20 mph.
* Mixing height............9416 ft AGL.
* Transport winds..........Southwest 11 to 18 knots.
* Ventilation Category.....Excellent (169488 knot-ft).

.Forecast days 3 through 7......
Winds in Days 3 through 5 are surface 20 ft/10-min avg
.SUNDAY...Mostly clear. Lows 46 to 56. Highs 73 to 83. West wind
around 15 mph. Minimum Humidity 6 to 10 pct.
.MEMORIAL DAY...Mostly clear. Lows 45 to 55. Highs 75 to 85. West
wind around 15 mph. Minimum Humidity 5 to 10 pct.
.TUESDAY...Mostly clear. Lows 47 to 57. Highs 75 to 85. West wind
around 15 mph. Minimum Humidity 6 to 11 pct.
.WEDNESDAY...Mostly clear. Lows 48 to 58. Highs 76 to 86.
.THURSDAY...Mostly clear. Lows 49 to 59. Highs 76 to 86.

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

$$

AZZ154-231300-
Arizona Fire Weather Zone 154
Forest Woodlands FDRA including the Sky Islands of Southeast
Arizona above 5500 feet-Coronado NF-TDC-
251 PM MST Thu May 22 2025

.TONIGHT...
* Sky/Weather..............Mostly clear (15-25 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Min Temperature..........54 to 64 degs.
     24 hr Trend...........Little change.
* Max Humidity.............15 to 23 pct.
     24 hr Trend...........Up 2 to 5 pct.
* Wind (20 ft/10-min avg)..West 10 to 15 mph.
* 10000 ft MSL Wind........Southwest 15 to 20 mph.

.FRIDAY...
* Sky/Weather..............Partly cloudy (25-35 pct) then becoming
                           mostly sunny (20-30 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.............5 to 11 pct.
     24 hr Trend...........Little change.
* Wind (20 ft/10-min avg)..Southwest 10 to 15 mph.
* 10000 ft MSL Wind........Southwest 20 to 25 mph.
* Mixing height............12371 ft AGL.
* Transport winds..........Southwest 17 to 20 knots.
* Ventilation Category.....Excellent (228863 knot-ft).

.FRIDAY NIGHT...
* Sky/Weather..............Partly cloudy (25-35 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Min Temperature..........51 to 61 degs.
     24 hr Trend...........Down 2 to 5 degs.
* Max Humidity.............19 to 29 pct.
     24 hr Trend...........Up 3 to 7 pct.
* Wind (20 ft/10-min avg)..Southwest 15 to 20 mph.
* 10000 ft MSL Wind........Southwest 20 to 25 mph.

.SATURDAY...
* 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 3 to 6 degs.
* Min Humidity.............5 to 10 pct.
     24 hr Trend...........Little change.
* Wind (20 ft/10-min avg)..Southwest 10 to 15 mph.
* 10000 ft MSL Wind........Southwest 15 to 20 mph.
* Mixing height............11231 ft AGL.
* Transport winds..........Southwest 15 to 20 knots.
* Ventilation Category.....Excellent (196542 knot-ft).

.Forecast days 3 through 7......
Winds in Days 3 through 5 are surface 20 ft/10-min avg
.SUNDAY...Mostly clear. Lows 49 to 59. Highs 72 to 82. West wind
around 15 mph. Minimum Humidity 5 to 11 pct.
.MEMORIAL DAY...Mostly clear. Lows 48 to 58. Highs 74 to 84.
Southwest wind around 15 mph. Minimum Humidity 4 to 11 pct.
.TUESDAY...Mostly clear. Lows 50 to 60. Highs 75 to 85. Southwest
wind around 15 mph. Minimum Humidity 5 to 10 pct.
.WEDNESDAY...Mostly clear. Lows 51 to 61. Highs 76 to 86.
.THURSDAY...Mostly clear. Lows 52 to 62. Highs 77 to 87.

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

$$


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