FNUS55 KTWC 010838 FWFTWC Fire Weather Planning Forecast for Southeast Arizona National Weather Service Tucson AZ 138 AM MST Wed May 1 2024 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 20-FOOT WIND FORECAST OF 'LIGHT WINDS' INDICATES MAINLY TERRAIN DRIVEN WINDS +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ .DISCUSSION...High temperatures will be 3-8 degrees above normal into the upcoming weekend. 20-foot winds will generally be 15 mph or less most of this week, with afternoon gustiness resulting from surface heating. The strongest winds are expected today, with southwest to west winds of 15-20 mph with gusts up to 30 mph, and again on Sunday. Min RH values in the valleys will generally be in the single digits and 12-20 percent in the mountains. AZZ150-012215- Arizona Fire Weather Zone 150 Sonoran FDRA-Most of Pima County-South Central Pinal County- Tohono O'odham Nation-Tucson Metropolitan area-TDC- 138 AM MST Wed May 1 2024 .TODAY... * Sky/Weather..............Sunny. * Max Temperature..........81 to 91 degs. * 24 hr Trend...........Down 3 to 6 degs. * Min Humidity.............12 to 22 pct. * 24 hr Trend...........Up 4 to 8 pct. * Wind (20 ft/10-min avg)..South 10 to 15 mph. * 10000 ft MSL Wind........Southwest 15 to 20 mph. * Chance of Precip.........0 pct. * LAL......................1. * Haines Index.............4 or low. * Mixing Height............10324 ft agl. * Transport Winds..........South 17 to 18 knots. * Ventilation Category.....Excellent (185832 knot-ft). .TONIGHT... * Sky/Weather..............Mostly clear. * Min Temperature..........50 to 60 degs. * 24 hr Trend...........Little change. * Max Humidity.............40 to 50 pct. * 24 hr Trend...........Little change. * Wind (20 ft/10-min avg)..Southwest around 15 mph shifting to the south after midnight. * 10000 ft MSL Wind........Southwest 10 to 15 mph. * Chance of Precip.........0 pct. * LAL......................1. * Haines Index.............4 or low. .THURSDAY... * Sky/Weather..............Sunny. * Max Temperature..........82 to 92 degs. * 24 hr Trend...........Little change. * Min Humidity.............10 to 20 pct. * 24 hr Trend...........Little change. * Wind (20 ft/10-min avg)..South around 10 mph shifting to the southwest in the afternoon. * 10000 ft MSL Wind........Southwest 10 to 15 mph. * Chance of Precip.........0 pct. * LAL......................1. * Haines Index.............4 or low. * Mixing Height............10859 ft agl. * Transport Winds..........South 9 to 10 knots. * Ventilation Category.....Excellent (108590 knot-ft). .FORECAST DAYS 3 THROUGH 7... WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG .FRIDAY...Clear. Lows 52 to 62. Highs 83 to 93. South wind around 15 mph. Minimum Humidity 8 to 18 pct. .SATURDAY...Mostly clear. Lows 53 to 63. Highs 85 to 95. South wind around 15 mph. Minimum Humidity 5 to 14 pct. .SUNDAY...Mostly clear. Lows 53 to 63. Highs 82 to 92. Southwest wind around 20 mph. Minimum Humidity 11 to 21 pct. .MONDAY...Clear. Lows 48 to 58. Highs 77 to 87. .TUESDAY...Mostly clear. Lows 49 to 59. Highs 81 to 91. NOTE TO USERS - ZONE 150 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE TUCSON INTERNATIONAL AIRPORT LOCATION (2550 MSL) $$ AZZ151-012215- 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- 138 AM MST Wed May 1 2024 .TODAY... * Sky/Weather..............Sunny. * Max Temperature..........77 to 87 degs. * 24 hr Trend...........Down 2 to 5 degs. * Min Humidity.............11 to 19 pct. * 24 hr Trend...........Up 3 to 6 pct. * Wind (20 ft/10-min avg)..South around 20 mph shifting to the southwest in the afternoon. * 10000 ft MSL Wind........Southwest 20 to 25 mph. * Chance of Precip.........0 pct. * LAL......................1. * Haines Index.............4 or low. * Mixing Height............8224 ft agl. * Transport Winds..........South 18 to 19 knots. * Ventilation Category.....Excellent (156256 knot-ft). .TONIGHT... * Sky/Weather..............Clear. * Min Temperature..........45 to 55 degs. * 24 hr Trend...........Little change. * Max Humidity.............44 to 54 pct. * 24 hr Trend...........Little change. * Wind (20 ft/10-min avg)..Southwest around 20 mph becoming south around 10 mph after midnight. * 10000 ft MSL Wind........Southwest 15 to 20 mph. * Chance of Precip.........0 pct. * LAL......................1. * Haines Index.............4 or low. .THURSDAY... * Sky/Weather..............Sunny. * Max Temperature..........77 to 87 degs. * 24 hr Trend...........Little change. * Min Humidity.............10 to 16 pct. * 24 hr Trend...........Little change. * Wind (20 ft/10-min avg)..South around 10 mph shifting to the southwest in the afternoon. * 10000 ft MSL Wind........Southwest 10 to 15 mph. * Chance of Precip.........0 pct. * LAL......................1. * Haines Index.............4 or low. * Mixing Height............8858 ft agl. * Transport Winds..........Southwest 9 to 13 knots. * Ventilation Category.....Excellent (115154 knot-ft). .FORECAST DAYS 3 THROUGH 7... WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG .FRIDAY...Clear. Lows 46 to 56. Highs 78 to 88. Southwest wind around 15 mph. Minimum Humidity 8 to 14 pct. .SATURDAY...Mostly clear. Lows 48 to 58. Highs 80 to 90. South wind around 15 mph. Minimum Humidity 7 to 11 pct. .SUNDAY...Clear. Lows 48 to 58. Highs 79 to 89. Southwest wind around 20 mph. Minimum Humidity 8 to 14 pct. .MONDAY...Clear. Lows 44 to 54. Highs 73 to 83. .TUESDAY...Mostly 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) $$ AZZ152-012215- 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- 138 AM MST Wed May 1 2024 .TODAY... * Sky/Weather..............Sunny. * Max Temperature..........77 to 87 degs. * 24 hr Trend...........Down 1 to 4 degs. * Min Humidity.............8 to 18 pct. * 24 hr Trend...........Little change. * Wind (20 ft/10-min avg)..South around 15 mph shifting to the southwest in the afternoon. * 10000 ft MSL Wind........Southwest 20 to 25 mph. * Chance of Precip.........0 pct. * LAL......................1. * Haines Index.............4 or low. * Mixing Height............10267 ft agl. * Transport Winds..........Southwest 16 to 19 knots. * Ventilation Category.....Excellent (195073 knot-ft). .TONIGHT... * Sky/Weather..............Mostly clear. * Min Temperature..........45 to 55 degs. * 24 hr Trend...........Little change. * Max Humidity.............41 to 51 pct. * 24 hr Trend...........Up 3 to 7 pct. * Wind (20 ft/10-min avg)..West 15 to 20 mph. * 10000 ft MSL Wind........West 15 to 20 mph. * Chance of Precip.........0 pct. * LAL......................1. * Haines Index.............4 or low. .THURSDAY... * Sky/Weather..............Mostly sunny. * Max Temperature..........77 to 87 degs. * 24 hr Trend...........Little change. * Min Humidity.............8 to 18 pct. * 24 hr Trend...........Little change. * Wind (20 ft/10-min avg)..Southwest 10 to 15 mph. * 10000 ft MSL Wind........West 10 to 15 mph. * Chance of Precip.........0 pct. * LAL......................1. * Haines Index.............4 or low. * Mixing Height............10416 ft agl. * Transport Winds..........West 8 to 14 knots. * Ventilation Category.....Excellent (145824 knot-ft). .FORECAST DAYS 3 THROUGH 7... WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG .FRIDAY...Clear. Lows 46 to 56. Highs 78 to 88. Southwest wind around 15 mph. Minimum Humidity 7 to 15 pct. .SATURDAY...Mostly clear. Lows 47 to 57. Highs 81 to 91. Southwest wind around 15 mph. Minimum Humidity 6 to 12 pct. .SUNDAY...Mostly clear. Lows 47 to 57. Highs 80 to 90. Southwest wind around 20 mph. Minimum Humidity 6 to 12 pct. .MONDAY...Clear. Lows 45 to 55. Highs 74 to 84. .TUESDAY...Mostly clear. Lows 43 to 53. 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) $$ AZZ153-012215- 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- 138 AM MST Wed May 1 2024 .TODAY... * Sky/Weather..............Mostly sunny. * Max Temperature..........66 to 76 degs. * 24 hr Trend...........Down 1 to 4 degs. * Min Humidity.............12 to 22 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. * Chance of Precip.........0 pct. * LAL......................1. * Haines Index.............4 or low. * Mixing Height............8663 ft agl. * Transport Winds..........West 17 to 20 knots. * Ventilation Category.....Excellent (173260 knot-ft). .TONIGHT... * Sky/Weather..............Mostly clear. * Min Temperature..........41 to 51 degs. * 24 hr Trend...........Little change. * Max Humidity.............40 to 50 pct. * 24 hr Trend...........Up 5 to 9 pct. * Wind (20 ft/10-min avg)..Northwest 15 to 20 mph. * 10000 ft MSL Wind........West 20 to 25 mph. * Chance of Precip.........0 pct. * LAL......................1. * Haines Index.............4 or low. .THURSDAY... * Sky/Weather..............Mostly sunny. * Max Temperature..........67 to 77 degs. * 24 hr Trend...........Little change. * Min Humidity.............12 to 22 pct. * 24 hr Trend...........Little change. * Wind (20 ft/10-min avg)..Northwest around 10 mph shifting to the southwest in the afternoon. * 10000 ft MSL Wind........West 10 to 15 mph. * Chance of Precip.........0 pct. * LAL......................1. * Haines Index.............4 or low. * Mixing Height............9354 ft agl. * Transport Winds..........West 9 to 14 knots. * Ventilation Category.....Excellent (130956 knot-ft). .FORECAST DAYS 3 THROUGH 7... WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG .FRIDAY...Clear. Lows 41 to 51. Highs 68 to 78. West wind around 15 mph. Minimum Humidity 10 to 17 pct. .SATURDAY...Mostly clear. Lows 43 to 53. Highs 70 to 80. West wind around 15 mph. Minimum Humidity 7 to 15 pct. .SUNDAY...Mostly clear. Lows 42 to 52. Highs 68 to 78. Southwest wind around 25 mph. Minimum Humidity 8 to 16 pct. .MONDAY...Clear. Lows 39 to 49. Highs 63 to 73. .TUESDAY...Mostly clear. Lows 37 to 47. Highs 66 to 76. NOTE TO USERS - ZONE 153 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE POINT OF PINES LOCATION (6040 MSL) $$ AZZ154-012215- Arizona Fire Weather Zone 154 Forest Woodlands FDRA including the Sky Islands of Southeast Arizona above 5500 feet-Coronado NF-TDC- 138 AM MST Wed May 1 2024 .TODAY... * Sky/Weather..............Sunny. * Max Temperature..........67 to 77 degs. * 24 hr Trend...........Down 2 to 5 degs. * Min Humidity.............11 to 21 pct. * 24 hr Trend...........Up 2 to 5 pct. * Wind (20 ft/10-min avg)..Southwest 10 to 20 mph. * 10000 ft MSL Wind........Southwest 20 to 25 mph. * Chance of Precip.........0 pct. * LAL......................1. * Haines Index.............4 or low. * Mixing Height............10692 ft agl. * Transport Winds..........Southwest 18 to 21 knots. * Ventilation Category.....Excellent (208494 knot-ft). .TONIGHT... * Sky/Weather..............Clear. * Min Temperature..........43 to 53 degs. * 24 hr Trend...........Little change. * Max Humidity.............39 to 49 pct. * 24 hr Trend...........Little change. * Wind (20 ft/10-min avg)..Breezy. West 15 to 25 mph. * 10000 ft MSL Wind........Southwest 15 to 20 mph. * Chance of Precip.........0 pct. * LAL......................1. * Haines Index.............4 or low. .THURSDAY... * Sky/Weather..............Mostly sunny. * Max Temperature..........67 to 77 degs. * 24 hr Trend...........Little change. * Min Humidity.............11 to 21 pct. * 24 hr Trend...........Little change. * Wind (20 ft/10-min avg)..Southwest 10 to 15 mph. * 10000 ft MSL Wind........Southwest 10 to 15 mph. * Chance of Precip.........0 pct. * LAL......................1. * Haines Index.............4 or low. * Mixing Height............10918 ft agl. * Transport Winds..........Southwest 9 to 15 knots. * Ventilation Category.....Excellent (131016 knot-ft). .FORECAST DAYS 3 THROUGH 7... WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG .FRIDAY...Clear. Lows 44 to 54. Highs 68 to 78. Southwest wind around 15 mph. Minimum Humidity 9 to 18 pct. .SATURDAY...Mostly clear. Lows 45 to 55. Highs 70 to 80. Southwest wind around 20 mph. Minimum Humidity 7 to 14 pct. .SUNDAY...Clear. Lows 45 to 55. Highs 69 to 79. Southwest wind around 25 mph. Minimum Humidity 8 to 15 pct. .MONDAY...Clear. Lows 41 to 51. Highs 64 to 74. .TUESDAY...Mostly clear. Lows 41 to 51. 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