


Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Pocatello, ID
Issued by NWS Pocatello, ID
928 FNUS55 KPIH 060854 FWFPIH Fire Weather Planning Forecast for Southeast Idaho National Weather Service Pocatello ID 254 AM MDT Wed Aug 6 2025 ...RED FLAG WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 9 PM MDT THIS EVENING FIRE WEATHER FORECAST ZONE 422... ...RED FLAG WARNING IN EFFECT FROM 3 PM THIS AFTERNOON TO 9 PM MDT THIS EVENING FOR FIRE WEATHER FORECAST ZONE 413... .DISCUSSION... * Central Idaho Dispatch Area weather impact summary (Zones 475 and 476)... Very dry air as settled in over the central Idaho mountains, but the nearly clear skies will allow afternoon high temperatures to warm compared to yesterday. An approaching cold front for Thursday will bring increased wind this afternoon and even stronger wind on Thursday. Fortunately, this front will also have more humid air and critical fire weather condtions are expected in limited areas. * East Idaho Dispatch Area weather impact summary (Zones 410...411 and 413)... ...RED FLAG WARNING IN EFFECT FROM 3 PM THIS AFTERNOON TO 9 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 413... The dry air over eastern Idaho will see a brief warming trend under the nearly clear skies today. A cold front approaching for Thursday will increase the wind enough to generate widespread Red Flag conditions in Fire Weather Forecast Zone 413 for the late afternoon and early evening hours today. The cold front sweeps through Thursday afternoon/evening. This will bring even stronger wind for Thursday. The front will also bring isolated thunderstorms along the Idaho-Montana border and increased humidity. The increased humidity may not get to the southern half of the Caribou NF area prior to the onset of the wind, so Red Flag conditions may return Thursday for Zone 413. Expect a dry and cooler Friday through Sunday. * South Central Idaho Dispatch Area weather impact summary (Zones 422...425 and 427)... ...RED FLAG WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 9 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 422... A cold front that will approach from the west on Thursday afternoon will bring stronger wind even starting today. The very dry air left by the last low will combine with the wind to bring Red Flag conditions to areas from Ketchum southwards. When the cold front sweeps through on Thursday, wind will be even stronger, but humidity will also increase and should keep weather conditions just outside critical fire weather conditions. A dry and cool Friday through Sunday should follow. IDZ475-062330- East Salmon River Mountains/Salmon NF- 254 AM MDT Wed Aug 6 2025 .Today... * Sky/weather........Mostly sunny then becoming partly cloudy. * Chc of thunder.....Zero. * Max Temperature....76-83 valleys. 67-73 ridges. 24 hr trend......6 degrees up. * Min Humidity.......17-25 percent. 24 hr trend......3 percent down. * 20ft wind......... Valleys/lwr slopes...Southwest 9 to 14 mph. Ridges/upr slopes....Southwest 9 to 14 mph. Gusts up to 20 mph in the afternoon. * Chc Wetting Rain...Zero. * Mixing Height......12500-13500 ft AGL. * Transport Wind.....Southwest 15 to 20 mph. .TONIGHT... * Sky/weather........Mostly cloudy then becoming partly cloudy. * Chc of thunder.....Zero. * Min Temperature....46-53. 24 hr trend......2 degrees up. * Max Humidity.......54-62 percent. 24 hr trend......2 percent down. * 20ft wind......... Valleys/lwr slopes...West 8 to 13 mph. Ridges/upr slopes....West 8 to 13 mph with gusts to 20 mph. * Chc Wetting Rain...Zero. * Mixing Height......700-1700 ft AGL. * Transport Wind.....West 15 mph in the evening. .THURSDAY... * Sky/weather........Mostly cloudy then becoming partly cloudy. Chance of showers and thunderstorms in the afternoon. * Chc of thunder.....30 percent. * Max Temperature....66-73 valleys. 57-64 ridges. 24 hr trend......9 degrees down. * Min Humidity.......31-39 percent. 24 hr trend......13 percent up. * 20ft wind......... Valleys/lwr slopes...Southwest 10 to 15 mph. Ridges/upr slopes....Southwest 11 to 16 mph. Gusts up to 15 mph increasing to 25 mph in the afternoon. * Chc Wetting Rain...10 percent. * Mixing Height......11250-12250 ft AGL. * Transport Wind.....Southwest 15 mph increasing to 30 mph in the afternoon. .Forecast days 3 through 7...... .FRIDAY...Mostly clear. Slight chance of showers. Lows 37 to 44. Highs 60 to 67. Northwest wind 10 to 20 mph with gusts to 30 mph. .SATURDAY...Mostly clear. Lows 40 to 47. Highs 64 to 71. Northwest wind 5 to 10 mph with gusts to 20 mph. .SUNDAY...Mostly clear. Lows 42 to 49. Highs 71 to 78. Northwest wind 5 to 10 mph with gusts to 20 mph. .MONDAY...Mostly clear. Lows in the upper 40s. Highs in the upper 70s. .TUESDAY...Mostly clear. Lows in the lower 50s. Highs in the mid 70s. $$ IDZ476-062330- Lemhi and Lost River Range/Challis NF- 254 AM MDT Wed Aug 6 2025 .Today... * Sky/weather........Sunny. * Chc of thunder.....Zero. * Max Temperature....79-86 valleys. 68-75 ridges. 24 hr trend......6 degrees up. * Min Humidity.......14-22 percent. 24 hr trend......3 percent down. * 20ft wind......... Valleys/lwr slopes...Southwest 2 to 7 mph increasing to 12 to 17 mph in the afternoon. Ridges/upr slopes....Southwest 12 to 17 mph. Gusts up to 15 mph increasing to 25 mph in the afternoon. * Chc Wetting Rain...Zero. * Mixing Height......12750-13750 ft AGL. * Transport Wind.....Southwest 15 mph increasing to 25 mph in the afternoon. .TONIGHT... * Sky/weather........Partly cloudy. * Chc of thunder.....Zero. * Min Temperature....47-54. 24 hr trend......4 degrees up. * Max Humidity.......48-56 percent valleys. 43-51 percent ridges. 24 hr trend......5 percent down. * 20ft wind......... Valleys/lwr slopes...West 12 to 17 mph. Ridges/upr slopes....West 12 to 17 mph. Gusts up to 25 mph decreasing to 15 mph after midnight. * Chc Wetting Rain...Zero. * Mixing Height......700-1700 ft AGL. * Transport Wind.....West 10 to 15 mph. .THURSDAY... * Sky/weather........Mostly cloudy then becoming partly cloudy. Slight chance of showers and thunderstorms in the afternoon. * Chc of thunder.....20 percent. * Max Temperature....71-78 valleys. 61-68 ridges. 24 hr trend......7 degrees down. * Min Humidity.......22-30 percent valleys. 27-35 percent ridges. 24 hr trend......10 percent up. * 20ft wind......... Valleys/lwr slopes...Southwest 2 to 7 mph increasing to 13 to 18 mph in the afternoon. Ridges/upr slopes....Southwest 2 to 9 mph with gusts to 15 mph increasing to 9 to 19 mph with gusts to 30 mph in the afternoon. * Chc Wetting Rain...10 percent. * Mixing Height......11000-12000 ft AGL. * Transport Wind.....Southwest 20 mph increasing to 30 mph in the afternoon. .Forecast days 3 through 7...... .FRIDAY...Breezy. Mostly clear. Lows 38 to 45. Highs 61 to 68. Northwest wind 15 to 25 mph with gusts to 30 mph. .SATURDAY...Mostly clear. Lows 39 to 46. Highs 64 to 71. Northwest wind 10 to 15 mph with gusts to 25 mph. .SUNDAY...Partly cloudy. Lows 42 to 49. Highs 70 to 77. Northwest wind 10 to 15 mph with gusts to 20 mph. .MONDAY...Mostly clear. Lows in the upper 40s. Highs in the upper 70s. .TUESDAY...Mostly clear. Lows in the lower 50s. Highs in the upper 70s. $$ IDZ422-062330- Sawtooth Range/Northern Sawtooth NF- 254 AM MDT Wed Aug 6 2025 ...RED FLAG WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 9 PM MDT THIS EVENING FOR GUSTY WIND AND LOW HUMIDITY... .Today... * Sky/weather........Sunny. * Chc of thunder.....Zero. * Max Temperature....79-86 valleys. 67-74 ridges. 24 hr trend......6 degrees up. * Min Humidity.......11-20 percent valleys. 19-27 percent ridges. 24 hr trend......3 percent down. * 20ft wind......... Valleys/lwr slopes...Southwest 10 to 15 mph. Ridges/upr slopes....Southwest 11 to 16 mph. Gusts up to 15 mph increasing to 25 mph in the afternoon. * Chc Wetting Rain...Zero. * Mixing Height......13500-14500 ft AGL. * Transport Wind.....Southwest 15 mph increasing to 25 mph in the afternoon. .TONIGHT... * Sky/weather........Partly cloudy. * Chc of thunder.....Zero. * Min Temperature....47-54. 24 hr trend......2 degrees up. * Max Humidity.......44-52 percent. 24 hr trend......Little change. * 20ft wind......... Valleys/lwr slopes...Northwest 10 to 15 mph. Ridges/upr slopes....West 10 to 15 mph. Gusts up to 25 mph decreasing to 15 mph after midnight. * Chc Wetting Rain...Zero. * Mixing Height......800-1800 ft AGL. * Transport Wind.....West 10 to 15 mph. .THURSDAY... * Sky/weather........Partly cloudy. * Chc of thunder.....Zero. * Max Temperature....72-79 valleys. 59-66 ridges. 24 hr trend......7 degrees down. * Min Humidity.......24-32 percent valleys. 34-42 percent ridges. 24 hr trend......13 percent up. * 20ft wind......... Valleys/lwr slopes...Southwest 12 to 17 mph. Ridges/upr slopes....Southwest 12 to 17 mph. Gusts up to 15 mph increasing to 25 mph in the afternoon. * Chc Wetting Rain...Zero. * Mixing Height......11250-12250 ft AGL. * Transport Wind.....West 20 mph increasing to 30 mph in the afternoon. .Forecast days 3 through 7...... .FRIDAY...Clear. Lows 37 to 44. Highs 64 to 71. West wind 10 to 20 mph with gusts to 30 mph. .SATURDAY...Mostly clear. Lows 40 to 47. Highs 67 to 74. Northwest wind 10 to 15 mph with gusts to 25 mph. .SUNDAY...Partly cloudy. Lows 42 to 49. Highs 71 to 78. Northwest wind 10 to 15 mph with gusts to 20 mph. .MONDAY...Clear. Lows around 50. Highs in the upper 70s. .TUESDAY...Clear. Lows in the lower 50s. Highs in the upper 70s. $$ IDZ425-062330- Middle Snake River Valley/Twin Falls BLM north of the Snake River- 254 AM MDT Wed Aug 6 2025 .Today... * Sky/weather........Sunny. * Chc of thunder.....Zero. * Max Temperature....Around 91. 24 hr trend......6 degrees up. * Min Humidity.......13 percent. 24 hr trend......5 percent down. * 20ft wind..........East 2 to 6 mph shifting to the west 9 to 14 mph with gusts to 20 mph in the afternoon. * Chc Wetting Rain...Zero. * Mixing Height......14000-15500 ft AGL. * Transport Wind.....Southwest 15 to 20 mph. .TONIGHT... * Sky/weather........Partly cloudy. * Chc of thunder.....Zero. * Min Temperature....Around 56. 24 hr trend......2 degrees up. * Max Humidity.......45-53 percent. 24 hr trend......Little change. * 20ft wind..........West 9 to 14 mph with gusts to 20 mph. * Chc Wetting Rain...Zero. * Mixing Height......900-2400 ft AGL. * Transport Wind.....West 10 to 15 mph. .THURSDAY... * Sky/weather........Mostly cloudy then becoming partly cloudy. * Chc of thunder.....Zero. * Max Temperature....Around 84. 24 hr trend......7 degrees down. * Min Humidity.......18-26 percent. 24 hr trend......8 percent up. * 20ft wind..........West 12 to 17 mph. Gusts up to 15 mph increasing to 30 mph in the afternoon. * Chc Wetting Rain...Zero. * Mixing Height......12000-13000 ft AGL. * Transport Wind.....West 20 mph increasing to 30 mph in the afternoon. .Forecast days 3 through 7...... .FRIDAY...Partly cloudy. Lows 48 to 54. Highs in the upper 70s. West wind 10 to 20 mph with gusts to 30 mph. .SATURDAY...Mostly clear. Lows 45 to 50. Highs in the lower 80s. West wind 10 to 15 mph with gusts to 25 mph. .SUNDAY...Partly cloudy. Lows around 50. Highs in the mid 80s. West wind 10 to 15 mph with gusts to 20 mph. .MONDAY...Clear. Lows in the lower 50s. Highs in the upper 80s. .TUESDAY...Clear. Lows in the mid 50s. Highs around 90. $$ IDZ427-062330- Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls BLM south of the Snake River- 254 AM MDT Wed Aug 6 2025 .Today... * Sky/weather........Sunny. * Chc of thunder.....Zero. * Max Temperature....89-94 valleys. 82-89 ridges. 24 hr trend......7 degrees up. * Min Humidity.......Around 13 percent. 24 hr trend......4 percent down. * 20ft wind......... Valleys/lwr slopes...Southwest 1 to 5 mph shifting to the west 7 to 12 mph in the afternoon. Ridges/upr slopes....Southwest 7 to 12 mph. Gusts up to 20 mph in the afternoon. * Chc Wetting Rain...Zero. * Mixing Height......14000-15000 ft AGL. * Transport Wind.....Southwest 10 mph increasing to 20 mph in the afternoon. .TONIGHT... * Sky/weather........Mostly clear. * Chc of thunder.....Zero. * Min Temperature....53-60. 24 hr trend......Little change. * Max Humidity.......41-49 percent. 24 hr trend......Little change. * 20ft wind......... Valleys/lwr slopes...West 8 to 13 mph. Ridges/upr slopes....West 8 to 13 mph with gusts to 20 mph. * Chc Wetting Rain...Zero. * Mixing Height......900-1900 ft AGL. * Transport Wind.....West 10 to 15 mph. .THURSDAY... * Sky/weather........Partly cloudy. * Chc of thunder.....Zero. * Max Temperature....80-87. 24 hr trend......5 degrees down. * Min Humidity.......16-24 percent. 24 hr trend......5 percent up. * 20ft wind......... Valleys/lwr slopes...West 9 to 14 mph. Ridges/upr slopes....West 9 to 14 mph with gusts to 20 mph. * Chc Wetting Rain...Zero. * Mixing Height......12000-13000 ft AGL. * Transport Wind.....West 20 to 25 mph. .Forecast days 3 through 7...... .FRIDAY...Not as warm. Partly cloudy. Lows 50 to 57. Highs 70 to 77. West wind 10 to 20 mph with gusts to 30 mph. .SATURDAY...Mostly clear. Lows 46 to 53. Highs 74 to 81. West wind 10 to 15 mph with gusts to 25 mph. .SUNDAY...Partly cloudy. Lows 49 to 56. Highs 77 to 84. West wind 10 to 15 mph with gusts to 20 mph. .MONDAY...Clear. Lows in the mid 50s. Highs in the mid 80s. .TUESDAY...Clear. Lows in the upper 50s. Highs in the upper 80s. $$ IDZ410-062330- Upper Snake River Valley/Idaho Falls BLM- 254 AM MDT Wed Aug 6 2025 .Today... * Sky/weather........Sunny. * Chc of thunder.....Zero. * Max Temperature....84-91. 24 hr trend......6 degrees up. * Min Humidity.......11-16 percent. 24 hr trend......3 percent down. * 20ft wind..........Northeast 2 to 7 mph with gusts to 15 mph shifting to the southwest 12 to 17 mph with gusts to 25 mph in the afternoon. * Chc Wetting Rain...Zero. * Mixing Height......13750-14750 ft AGL. * Transport Wind.....Southwest 15 mph increasing to 25 mph in the afternoon. .TONIGHT... * Sky/weather........Partly cloudy. * Chc of thunder.....Zero. * Min Temperature....51-58. 24 hr trend......3 degrees up. * Max Humidity.......39-47 percent. 24 hr trend......8 percent down. * 20ft wind..........Southwest 12 to 17 mph with gusts to 25 mph. * Chc Wetting Rain...Zero. * Mixing Height......800-1800 ft AGL. * Transport Wind.....West 10 to 15 mph. .THURSDAY... * Sky/weather........Partly cloudy. * Chc of thunder.....Zero. * Max Temperature....79-86. 24 hr trend......5 degrees down. * Min Humidity.......15-22 percent. 24 hr trend......4 percent up. * 20ft wind..........Southwest 5 to 10 mph with gusts to 20 mph increasing to 15 to 20 mph with gusts to 30 mph in the afternoon. * Chc Wetting Rain...Zero. * Mixing Height......11000-12000 ft AGL. * Transport Wind.....Southwest 25 mph increasing to 35 mph in the afternoon. .Forecast days 3 through 7...... .FRIDAY...Breezy. Partly cloudy. Lows 47 to 54. Highs 71 to 78. West wind 15 to 25 mph with gusts to 30 mph. .SATURDAY...Mostly clear. Lows 42 to 49. Highs 73 to 80. Southwest wind 10 to 15 mph with gusts to 25 mph. .SUNDAY...Partly cloudy. Lows 45 to 52. Highs 78 to 85. North wind 5 to 10 mph with gusts to 20 mph. .MONDAY...Clear. Lows in the lower 50s. Highs in the mid 80s. .TUESDAY...Mostly clear. Lows in the mid 50s. Highs in the upper 80s. $$ IDZ411-062330- Centennial Mountains and Snake River Range/Targhee NF- 254 AM MDT Wed Aug 6 2025 .Today... * Sky/weather........Sunny. * Chc of thunder.....Zero. * Max Temperature....83-88 valleys. 75-82 ridges. 24 hr trend......6 degrees up. * Min Humidity.......14-20 percent. 24 hr trend......3 percent down. * 20ft wind......... Valleys/lwr slopes...East 2 to 6 mph shifting to the southwest 7 to 12 mph in the afternoon. Ridges/upr slopes....South 11 to 16 mph. Gusts up to 25 mph in the afternoon. * Chc Wetting Rain...Zero. * Mixing Height......12750-13750 ft AGL. * Transport Wind.....South 15 mph increasing to southwest 25 mph in the afternoon. .TONIGHT... * Sky/weather........Partly cloudy. * Chc of thunder.....Zero. * Min Temperature....49-56. 24 hr trend......3 degrees up. * Max Humidity.......42-50 percent valleys. 32-40 percent ridges. 24 hr trend......13 percent down. * 20ft wind......... Valleys/lwr slopes...Southwest 7 to 12 mph shifting to the east 2 to 7 mph after midnight. Ridges/upr slopes....Southwest 11 to 16 mph. Gusts up to 25 mph decreasing to 15 mph after midnight. * Chc Wetting Rain...Zero. * Mixing Height......900-1900 ft AGL. * Transport Wind.....Southwest 10 to 15 mph. .THURSDAY... * Sky/weather........Mostly sunny then becoming partly cloudy. Slight chance of showers and thunderstorms in the afternoon. * Chc of thunder.....10 percent. * Max Temperature....Around 81 valleys. 70-77 ridges. 24 hr trend......4 degrees down. * Min Humidity.......19-27 percent. 24 hr trend......6 percent up. * 20ft wind......... Valleys/lwr slopes...South 2 to 7 mph shifting to the southwest 9 to 14 mph in the afternoon. Ridges/upr slopes....South 2 to 8 mph shifting to the southwest 12 to 17 mph with gusts to 30 mph in the afternoon. * Chc Wetting Rain...Zero. * Mixing Height......10250-11250 ft AGL. * Transport Wind.....Southwest 20 mph increasing to 35 mph in the afternoon. .Forecast days 3 through 7...... .FRIDAY...Breezy. Partly cloudy. Slight chance of showers. Lows 44 to 51. Highs 62 to 69. West wind 15 to 25 mph with gusts to around 30 mph. .SATURDAY...Mostly clear. Lows 39 to 46. Highs 63 to 70. West wind 10 to 15 mph with gusts to 25 mph. .SUNDAY...Partly cloudy. Lows 43 to 50. Highs 69 to 76. North wind 5 to 10 mph with gusts to 20 mph. .MONDAY...Mostly clear. Lows in the upper 40s. Highs in the upper 70s. .TUESDAY...Mostly clear. Lows in the lower 50s. Highs in the upper 70s. $$ IDZ413-062330- Caribou Range/Caribou NF- 254 AM MDT Wed Aug 6 2025 ...RED FLAG WARNING IN EFFECT FROM 3 PM THIS AFTERNOON TO 9 PM MDT THIS EVENING FOR GUSTY WIND AND LOW HUMIDITY... .Today... * Sky/weather........Sunny. * Chc of thunder.....Zero. * Max Temperature....86-93 valleys. 79-86 ridges. 24 hr trend......5 degrees up. * Min Humidity.......10-15 percent. 24 hr trend......3 percent down. * 20ft wind......... Valleys/lwr slopes...Southeast 3 to 9 mph shifting to the southwest 10 to 15 mph in the afternoon. Ridges/upr slopes....South 4 to 10 mph shifting to the southwest 10 to 15 mph in the afternoon. Gusts up to 20 mph. * Chc Wetting Rain...Zero. * Mixing Height......14000-15000 ft AGL. * Transport Wind.....Southwest 15 to 20 mph. .TONIGHT... * Sky/weather........Clear. * Chc of thunder.....Zero. * Min Temperature....51-58. 24 hr trend......Little change. * Max Humidity.......34-42 percent valleys. 25-33 percent ridges. 24 hr trend......12 percent down. * 20ft wind......... Valleys/lwr slopes...South 9 to 14 mph shifting to the north 3 to 9 mph after midnight. Ridges/upr slopes....Southwest 9 to 14 mph with gusts to 20 mph. * Chc Wetting Rain...Zero. * Mixing Height......800-1800 ft AGL. * Transport Wind.....Southwest 10 to 15 mph. .THURSDAY... * Sky/weather........Sunny then becoming partly cloudy. * Chc of thunder.....Zero. * Max Temperature....83-90 valleys. 76-83 ridges. 24 hr trend......2 degrees down. * Min Humidity.......12-17 percent. 24 hr trend......2 percent up. * 20ft wind......... Valleys/lwr slopes...Southwest 11 to 16 mph. Ridges/upr slopes....Southwest 11 to 16 mph. Gusts up to 15 mph increasing to 25 mph in the afternoon. * Chc Wetting Rain...Zero. * Mixing Height......12000-13000 ft AGL. * Transport Wind.....Southwest 20 mph increasing to 30 mph in the afternoon. .Forecast days 3 through 7...... .FRIDAY...Not as warm. Partly cloudy. Lows 51 to 58. Highs 70 to 77. West wind 10 to 20 mph with gusts to 30 mph. .SATURDAY...Mostly clear. Lows 42 to 49. Highs 72 to 79. West wind 10 to 15 mph with gusts to 25 mph. .SUNDAY...Partly cloudy. Lows 46 to 53. Highs 77 to 84. Northwest wind 5 to 10 mph with gusts to 25 mph. .MONDAY...Clear. Lows in the lower 50s. Highs in the lower 80s. .TUESDAY...Clear. Lows in the mid 50s. Highs in the mid 80s. $$ .OUTLOOK from Wednesday August 13 to Tuesday August 19: Low confidence of above normal temperatures. Low confidence of near normal precipitation. Messick $$