FNUS55 KTWC 181949
FWFTWC
Fire Weather Planning Forecast for Southeast Arizona
National Weather Service Tucson AZ
1249 PM MST Sun May 18 2025
...RED FLAG WARNING IN EFFECT UNTIL 8 PM MST THIS EVENING...
...RED FLAG WARNING IN EFFECT FROM 10 AM TO 8 PM MST MONDAY...
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
20-FOOT WIND FORECAST OF 'LIGHT WINDS' INDICATES MAINLY
TERRAIN DRIVEN WINDS
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
.DISCUSSION...A dry weather system passing to the north will
bring increased west to southwest winds today and northwest to
west winds tomorrow, especially over eastern areas including
Graham, Greenlee, and Cochise counties. 15 to 25 mph winds with
gusts up to 40 mph are expected today with a Red Flag Warning in
effect. Elevated winds return in similar areas on Monday, with
windier conditions in the Gila River Valley with winds of 20 to 30
mph and gusts to 45 mph. Minimum relative humidities range from
9-15 percent in desert locations today and Monday. Relative
humidity values will likely be above critical levels atop
mountains, but drop below within the mountainous areas at lower
elevations. Temperatures will be a few degrees below normal
Monday, then rapidly warm to well above normal by the second half
of the work week.
AZZ150-191415-
Arizona Fire Weather Zone 150
Sonoran FDRA-Most of Pima County-South Central Pinal County-
Tohono O'odham Nation-Tucson Metropolitan area-TDC-
1249 PM MST Sun May 18 2025
.TONIGHT...
* Sky/Weather..............Mostly clear (5-15 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Min Temperature..........52 to 62 degs.
24 hr Trend...........Little change.
* Max Humidity.............47 to 57 pct.
24 hr Trend...........Little change.
* Wind (20 ft/10-min avg)..West around 15 mph shifting to the south
after midnight.
* 10000 ft MSL Wind........Northwest 10 to 15 mph.
.MONDAY...
* Sky/Weather..............Mostly sunny (5-15 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Max Temperature..........83 to 93 degs.
24 hr Trend...........Up 3 to 6 degs.
* Min Humidity.............7 to 15 pct.
24 hr Trend...........Down 5 to 9 pct.
* Wind (20 ft/10-min avg)..Southwest around 15 mph shifting to the
west in the afternoon.
* 10000 ft MSL Wind........Northwest 20 to 25 mph.
* Mixing height............9449 ft AGL.
* Transport winds..........West 12 to 19 knots.
* Ventilation Category.....Excellent (179531 knot-ft).
.MONDAY NIGHT...
* Sky/Weather..............Clear (0-10 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Min Temperature..........54 to 64 degs.
24 hr Trend...........Up 1 to 4 degs.
* Max Humidity.............24 to 34 pct.
24 hr Trend...........Down 20 to 24 pct.
* Wind (20 ft/10-min avg)..West around 15 mph becoming south
around 10 mph after midnight.
* 10000 ft MSL Wind........Northwest 20 to 25 mph.
.TUESDAY...
* Sky/Weather..............Sunny (0-10 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Max Temperature..........88 to 98 degs.
24 hr Trend...........Up 3 to 7 degs.
* Min Humidity.............4 to 9 pct.
24 hr Trend...........Down 3 to 6 pct.
* Wind (20 ft/10-min avg)..East around 10 mph shifting to the north
in the afternoon.
* 10000 ft MSL Wind........North around 15 mph becoming northwest
around 5 mph in the afternoon.
* Mixing height............8082 ft AGL.
* Transport winds..........East 7 knots shifting to the north 9
knots in the afternoon.
* Ventilation Category.....Very good (72738 knot-ft).
.Forecast days 3 through 7......
Winds in Days 3 through 5 are surface 20 ft/10-min avg
.WEDNESDAY...Clear. Lows 58 to 68. Highs 93 to 103. Light winds.
Minimum Humidity 4 to 7 pct.
.THURSDAY...Clear. Lows 61 to 71. Highs 96 to 106. Light winds.
Minimum Humidity 3 to 7 pct.
.FRIDAY...Mostly clear. Lows 62 to 72. Highs 95 to 105. South
wind around 15 mph. Minimum Humidity 4 to 9 pct.
.SATURDAY...Partly cloudy. Lows 61 to 71. Highs 91 to 101.
.SUNDAY...Mostly clear. Lows 59 to 69. Highs 90 to 100.
NOTE TO USERS - ZONE 150 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE TUCSON INTERNATIONAL AIRPORT
LOCATION (2550 MSL)
$$
AZZ151-191415-
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-
1249 PM MST Sun May 18 2025
...RED FLAG WARNING IN EFFECT UNTIL 8 PM MST THIS EVENING...
...RED FLAG WARNING IN EFFECT FROM 10 AM TO 8 PM MST MONDAY...
.TONIGHT...
* Sky/Weather..............Mostly clear (5-15 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Min Temperature..........46 to 56 degs.
24 hr Trend...........Little change.
* Max Humidity.............46 to 56 pct.
24 hr Trend...........Up 10 to 14 pct.
* Wind (20 ft/10-min avg)..West around 20 mph decreasing to around
10 mph after midnight.
* 10000 ft MSL Wind........West 15 to 20 mph.
.MONDAY...
* Sky/Weather..............Sunny (0-10 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Max Temperature..........76 to 86 degs.
24 hr Trend...........Up 1 to 4 degs.
* Min Humidity.............9 to 19 pct.
24 hr Trend...........Down 3 to 7 pct.
* Wind (20 ft/10-min avg)..Breezy. West around 15 mph increasing to
around 25 mph in the afternoon.
* 10000 ft MSL Wind........Northwest 20 to 25 mph.
* Mixing height............8642 ft AGL.
* Transport winds..........West 16 to 23 knots.
* Ventilation Category.....Excellent (198766 knot-ft).
.MONDAY NIGHT...
* Sky/Weather..............Clear (0-10 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Min Temperature..........46 to 56 degs.
24 hr Trend...........Up 1 deg.
* Max Humidity.............23 to 33 pct.
24 hr Trend...........Down 21 to 25 pct.
* Wind (20 ft/10-min avg)..West around 15 mph becoming southwest
around 10 mph after midnight.
* 10000 ft MSL Wind........Northwest 20 to 25 mph.
.TUESDAY...
* Sky/Weather..............Sunny (0-10 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Max Temperature..........83 to 93 degs.
24 hr Trend...........Up 4 to 8 degs.
* Min Humidity.............5 to 11 pct.
24 hr Trend...........Down 4 to 8 pct.
* Wind (20 ft/10-min avg)..East around 10 mph shifting to the
northwest in the afternoon.
* 10000 ft MSL Wind........Northwest 5 to 10 mph.
* Mixing height............9110 ft AGL.
* Transport winds..........East 9 knots shifting to the west 10
knots in the afternoon.
* Ventilation Category.....Very good (91100 knot-ft).
.Forecast days 3 through 7......
Winds in Days 3 through 5 are surface 20 ft/10-min avg
.WEDNESDAY...Clear. Lows 51 to 61. Highs 87 to 97. Light winds.
Minimum Humidity 5 to 9 pct.
.THURSDAY...Clear. Lows 54 to 64. Highs 91 to 101. Southwest wind
around 15 mph. Minimum Humidity 5 to 9 pct.
.FRIDAY...Mostly clear. Lows 57 to 67. Highs 90 to 100. Southwest
wind around 15 mph. Minimum Humidity 5 to 10 pct.
.SATURDAY...Mostly clear. Lows 55 to 65. Highs 87 to 97.
.SUNDAY...Mostly clear. Lows 54 to 64. Highs 86 to 96.
NOTE TO USERS - ZONE 151 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE BUENOS AIRES N.W.R. LOCATION
(3500 MSL)
$$
AZZ152-191415-
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-
1249 PM MST Sun May 18 2025
...RED FLAG WARNING IN EFFECT UNTIL 8 PM MST THIS EVENING...
...RED FLAG WARNING IN EFFECT FROM 10 AM TO 8 PM MST MONDAY...
.TONIGHT...
* Sky/Weather..............Mostly clear (15-25 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Min Temperature..........46 to 56 degs.
24 hr Trend...........Little change.
* Max Humidity.............36 to 46 pct.
24 hr Trend...........Up 11 to 15 pct.
* Wind (20 ft/10-min avg)..Breezy. West around 25 mph decreasing to
around 10 mph after midnight.
* 10000 ft MSL Wind........West 25 to 30 mph.
.MONDAY...
* Sky/Weather..............Mostly sunny (0-10 pct). Patchy blowing
dust.
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Max Temperature..........75 to 85 degs.
24 hr Trend...........Up 1 deg.
* Min Humidity.............8 to 17 pct.
24 hr Trend...........Down 3 to 6 pct.
* Wind (20 ft/10-min avg)..Windy. West around 20 mph increasing to
around 25 mph in the afternoon.
* 10000 ft MSL Wind........West 25 to 30 mph.
* Mixing height............7864 ft AGL.
* Transport winds..........West 22 to 28 knots.
* Ventilation Category.....Excellent (220192 knot-ft).
.MONDAY NIGHT...
* Sky/Weather..............Mostly clear (0-10 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Min Temperature..........46 to 56 degs.
24 hr Trend...........Little change.
* Max Humidity.............22 to 32 pct.
24 hr Trend...........Down 14 to 18 pct.
* Wind (20 ft/10-min avg)..Breezy. West around 20 mph becoming
northwest around 10 mph after midnight.
* 10000 ft MSL Wind........Northwest around 30 mph decreasing to
around 20 mph after midnight.
.TUESDAY...
* Sky/Weather..............Sunny (0-10 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Max Temperature..........82 to 92 degs.
24 hr Trend...........Up 4 to 8 degs.
* Min Humidity.............5 to 9 pct.
24 hr Trend...........Down 3 to 7 pct.
* Wind (20 ft/10-min avg)..North around 10 mph shifting to the west
in the afternoon.
* 10000 ft MSL Wind........Northwest 10 to 15 mph.
* Mixing height............8217 ft AGL.
* Transport winds..........North 8 knots shifting to the west 10
knots in the afternoon.
* Ventilation Category.....Very good (82170 knot-ft).
.Forecast days 3 through 7......
Winds in Days 3 through 5 are surface 20 ft/10-min avg
.WEDNESDAY...Clear. Lows 50 to 60. Highs 86 to 96. Light winds.
Minimum Humidity 4 to 7 pct.
.THURSDAY...Clear. Lows 54 to 64. Highs 90 to 100. Northwest wind
around 15 mph. Minimum Humidity 4 to 7 pct.
.FRIDAY...Mostly clear. Lows 56 to 66. Highs 90 to 100. West wind
around 15 mph. Minimum Humidity 5 to 8 pct.
.SATURDAY...Partly cloudy. Lows 56 to 66. Highs 87 to 97.
.SUNDAY...Mostly clear. Lows 55 to 65. Highs 86 to 96.
NOTE TO USERS - ZONE 152 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE CHIRICAHUA N.M. LOCATION (5400 MSL)
$$
AZZ153-191415-
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-
1249 PM MST Sun May 18 2025
...RED FLAG WARNING IN EFFECT UNTIL 8 PM MST THIS EVENING...
...RED FLAG WARNING IN EFFECT FROM 10 AM TO 8 PM MST MONDAY...
.TONIGHT...
* Sky/Weather..............Mostly clear (5-15 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Min Temperature..........39 to 49 degs.
24 hr Trend...........Down 1 deg.
* Max Humidity.............41 to 51 pct.
24 hr Trend...........Up 11 to 15 pct.
* Wind (20 ft/10-min avg)..West around 20 mph becoming northwest
around 10 mph after midnight.
* 10000 ft MSL Wind........West 25 to 30 mph.
.MONDAY...
* Sky/Weather..............Mostly sunny (5-15 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Max Temperature..........65 to 75 degs.
24 hr Trend...........Up 1 to 4 degs.
* Min Humidity.............11 to 19 pct.
24 hr Trend...........Down 3 to 6 pct.
* Wind (20 ft/10-min avg)..Breezy. West 15 to 25 mph.
* 10000 ft MSL Wind........West 35 to 40 mph.
* Mixing height............8467 ft AGL.
* Transport winds..........West 28 to 32 knots.
* Ventilation Category.....Excellent (270944 knot-ft).
.MONDAY NIGHT...
* Sky/Weather..............Mostly clear (0-10 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Min Temperature..........38 to 48 degs.
24 hr Trend...........Down 1 deg.
* Max Humidity.............26 to 36 pct.
24 hr Trend...........Down 15 to 19 pct.
* Wind (20 ft/10-min avg)..Breezy. West around 20 mph becoming
north around 10 mph after midnight.
* 10000 ft MSL Wind........Northwest around 35 mph decreasing to
around 25 mph after midnight.
.TUESDAY...
* Sky/Weather..............Sunny (0-10 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Max Temperature..........73 to 83 degs.
24 hr Trend...........Up 6 to 10 degs.
* Min Humidity.............5 to 8 pct.
24 hr Trend...........Down 6 to 10 pct.
* Wind (20 ft/10-min avg)..North around 10 mph shifting to the west
in the afternoon.
* 10000 ft MSL Wind........Northwest 10 to 15 mph.
* Mixing height............9345 ft AGL.
* Transport winds..........North 11 knots shifting to the west 12
knots in the afternoon.
* Ventilation Category.....Excellent (112140 knot-ft).
.Forecast days 3 through 7......
Winds in Days 3 through 5 are surface 20 ft/10-min avg
.WEDNESDAY...Clear. Lows 43 to 53. Highs 76 to 86. Light winds.
Minimum Humidity 5 to 8 pct.
.THURSDAY...Clear. Lows 46 to 56. Highs 79 to 89. Northwest wind
around 15 mph. Minimum Humidity 5 to 8 pct.
.FRIDAY...Mostly clear. Lows 48 to 58. Highs 79 to 89. Northwest
wind around 15 mph. Minimum Humidity 6 to 9 pct.
.SATURDAY...Partly cloudy. Lows 49 to 59. Highs 77 to 87.
.SUNDAY...Mostly clear. Lows 47 to 57. Highs 77 to 87.
NOTE TO USERS - ZONE 153 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE POINT OF PINES LOCATION (6040 MSL)
$$
AZZ154-191415-
Arizona Fire Weather Zone 154
Forest Woodlands FDRA including the Sky Islands of Southeast
Arizona above 5500 feet-Coronado NF-TDC-
1249 PM MST Sun May 18 2025
...RED FLAG WARNING IN EFFECT UNTIL 8 PM MST THIS EVENING...
...RED FLAG WARNING IN EFFECT FROM 10 AM TO 8 PM MST MONDAY...
.TONIGHT...
* Sky/Weather..............Mostly clear (10-20 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Min Temperature..........42 to 52 degs.
24 hr Trend...........Down 1 deg.
* Max Humidity.............40 to 50 pct.
24 hr Trend...........Up 13 to 17 pct.
* Wind (20 ft/10-min avg)..West 15 to 20 mph.
* 10000 ft MSL Wind........West 20 to 25 mph.
.MONDAY...
* Sky/Weather..............Sunny (0-10 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Max Temperature..........65 to 75 degs.
24 hr Trend...........Up 1 deg.
* Min Humidity.............12 to 22 pct.
24 hr Trend...........Down 3 to 7 pct.
* Wind (20 ft/10-min avg)..Windy. West around 20 mph increasing to
around 25 mph in the afternoon.
* 10000 ft MSL Wind........Northwest 25 to 30 mph.
* Mixing height............8866 ft AGL.
* Transport winds..........West 20 to 26 knots.
* Ventilation Category.....Excellent (203918 knot-ft).
.MONDAY NIGHT...
* Sky/Weather..............Clear (0-10 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Min Temperature..........44 to 54 degs.
24 hr Trend...........Up 1 deg.
* Max Humidity.............20 to 30 pct.
24 hr Trend...........Down 18 to 22 pct.
* Wind (20 ft/10-min avg)..Breezy. West around 20 mph decreasing to
around 15 mph after midnight.
* 10000 ft MSL Wind........Northwest around 30 mph decreasing to
around 20 mph after midnight.
.TUESDAY...
* Sky/Weather..............Sunny (0-10 pct).
* Chance of Precip.........0 pct.
* Chance of Thunder........0 pct.
* Max Temperature..........73 to 83 degs.
24 hr Trend...........Up 5 to 9 degs.
* Min Humidity.............6 to 11 pct.
24 hr Trend...........Down 6 to 10 pct.
* Wind (20 ft/10-min avg)..Northwest around 10 mph.
* 10000 ft MSL Wind........Northwest 5 to 10 mph.
* Mixing height............10552 ft AGL.
* Transport winds..........North 7 knots shifting to the west 10
knots in the afternoon.
* Ventilation Category.....Excellent (105520 knot-ft).
.Forecast days 3 through 7......
Winds in Days 3 through 5 are surface 20 ft/10-min avg
.WEDNESDAY...Clear. Lows 49 to 59. Highs 77 to 87. Light winds.
Minimum Humidity 5 to 10 pct.
.THURSDAY...Clear. Lows 52 to 62. Highs 80 to 90. West wind
around 15 mph. Minimum Humidity 5 to 10 pct.
.FRIDAY...Mostly clear. Lows 53 to 63. Highs 79 to 89. Southwest
wind around 15 mph. Minimum Humidity 5 to 10 pct.
.SATURDAY...Mostly clear. Lows 52 to 62. Highs 76 to 86.
.SUNDAY...Mostly clear. Lows 51 to 61. Highs 75 to 85.
NOTE TO USERS - ZONE 154 VENTILATION CATEGORY...MIXING HEIGHT AND
TRANSPORT WINDS ARE BASED ON THE AVERAGE ACROSS THE ZONE
$$
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