215
FNUS55 KPIH 122030
FWFPIH
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST IDAHO
NATIONAL WEATHER SERVICE POCATELLO ID
230 PM MDT WED AUG 12 2026
...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT THURSDAY FOR
SCATTERED THUNDERSTORMS FOR FIRE WEATHER ZONES 410, 411, 413,
422, 425, 427, 475, AND 476...
DISCUSSION
* CENTRAL IDAHO DISPATCH AREA WEATHER IMPACT SUMMARY (ZONES 475
AND 476)...
...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT THURSDAY FOR
SCATTERED THUNDERSTORMS FOR FIRE WEATHER ZONES 475 AND 476...
EXPECT A MIX OF WET AND DRY STORMS TODAY AND THURSDAY WITH ERRATIC
GUSTY OUTFLOW WINDS UP TO 45 MPH POSSIBLE EACH DAY. ISOLATED
STORMS TODAY WILL TURN SCATTERED BEGINNING THURSDAY. LOCALLY
MODERATE TO HEAVY RAIN IS POSSIBLE WITH BURN SCARS PARTICULARLY
AT RISK OF FLASH FLOODING.
* EAST IDAHO DISPATCH AREA WEATHER IMPACT SUMMARY (ZONES 410...411
AND 413)...
...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT THURSDAY FOR
SCATTERED THUNDERSTORMS FOR FIRE WEATHER ZONES 410, 411, AND
413...
EXPECT A MIX OF WET AND DRY STORMS TODAY AND THURSDAY WITH ERRATIC
GUSTY OUTFLOW WINDS UP TO 45 MPH POSSIBLE EACH DAY. ISOLATED
STORMS TODAY WILL TURN SCATTERED BEGINNING THURSDAY. LOCALLY
MODERATE TO HEAVY RAIN IS POSSIBLE WITH BURN SCARS PARTICULARLY
AT RISK OF FLASH FLOODING.
* SOUTH CENTRAL IDAHO DISPATCH AREA WEATHER IMPACT SUMMARY (ZONES
422...425 AND 427)...
...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT THURSDAY FOR
SCATTERED THUNDERSTORMS FOR FIRE WEATHER ZONES 422, 425, AND
427...
EXPECT A MIX OF WET AND DRY STORMS TODAY AND THURSDAY WITH ERRATIC
GUSTY OUTFLOW WINDS UP TO 45 MPH POSSIBLE EACH DAY. ISOLATED
STORMS TODAY WILL TURN SCATTERED BEGINNING THURSDAY. LOCALLY
MODERATE TO HEAVY RAIN IS POSSIBLE WITH BURN SCARS PARTICULARLY
AT RISK OF FLASH FLOODING.
IDZ475-131030-
EAST SALMON RIVER MOUNTAINS/SALMON NF-
230 PM MDT WED AUG 12 2026
..RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT THURSDAY
TONIGHT
* SKY/WEATHER........PARTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS
IN THE EVENING. PATCHY SMOKE THROUGH THE
NIGHT.
* CHC OF THUNDER.....0 PERCENT.
* MIN TEMPERATURE....47-54.
24 HR TREND......2 DEGREES DOWN.
* MAX HUMIDITY.......56-64 PERCENT VALLEYS AND 51-59 PERCENT
RIDGES.
24 HR TREND......11 PERCENT UP.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...NORTHWEST 6 TO 9 MPH SHIFTING TO THE NORTH
5 TO 8 MPH AFTER MIDNIGHT.
RIDGES/UPR SLOPES....WEST 5 TO 10 MPH. GUSTS UP TO 15 MPH IN
THE EVENING.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......200-1200 FT AGL.
* TRANSPORT WINDS....NORTHWEST AROUND 10 MPH IN THE EVENING
BECOMING LIGHT.
THURSDAY
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
PATCHY SMOKE THROUGH THE DAY. CHANCE OF RAIN
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON.
* CHC OF THUNDER.....20 PERCENT.
* MAX TEMPERATURE....71-78 VALLEYS AND 62-69 RIDGES.
24 HR TREND......6 DEGREES DOWN.
* MIN HUMIDITY.......32-40 PERCENT.
24 HR TREND......13 PERCENT UP.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTHEAST AROUND 4 MPH SHIFTING TO THE
WEST 4 TO 7 MPH IN THE AFTERNOON.
RIDGES/UPR SLOPES....SOUTHWEST 4 TO 8 MPH. GUSTS UP TO 15 MPH
IN THE AFTERNOON.
* CHC WETTING RAIN...10 PERCENT.
* MIXING HEIGHT......9000-10000 FT AGL.
* TRANSPORT WINDS....LIGHT WINDS BECOMING SOUTHWEST AROUND 10 MPH
IN THE AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER........MOSTLY CLOUDY. PATCHY SMOKE THROUGH THE NIGHT.
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING.
CHANCE OF RAIN SHOWERS THROUGH THE NIGHT.
* CHC OF THUNDER.....20 PERCENT.
* MIN TEMPERATURE....47-54.
24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......81-89 PERCENT VALLEYS AND 77-85 PERCENT
RIDGES.
24 HR TREND......24 PERCENT UP.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTHEAST 4 TO 6 MPH.
RIDGES/UPR SLOPES....SOUTHEAST 4 TO 6 MPH. GUSTS UP TO 15 MPH
IN THE EVENING.
* CHC WETTING RAIN...20 PERCENT.
* MIXING HEIGHT......200-1200 FT AGL.
* TRANSPORT WINDS....SOUTHWEST AROUND 10 MPH IN THE EVENING
BECOMING LIGHT.
FRIDAY
* SKY/WEATHER........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE MORNING,
THEN RAIN SHOWERS AND CHANCE OF THUNDERSTORMS
IN THE AFTERNOON.
* CHC OF THUNDER.....50 PERCENT.
* MAX TEMPERATURE....64-71 VALLEYS AND 55-62 RIDGES.
24 HR TREND......7 DEGREES DOWN.
* MIN HUMIDITY.......55-63 PERCENT VALLEYS AND 61-69 PERCENT
RIDGES.
24 HR TREND......26 PERCENT UP.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTH AROUND 4 MPH SHIFTING TO THE
SOUTHWEST 4 TO 6 MPH IN THE AFTERNOON.
RIDGES/UPR SLOPES....SOUTHWEST 4 TO 6 MPH. GUSTS UP TO 15 MPH
IN THE AFTERNOON.
* CHC WETTING RAIN...80 PERCENT.
* MIXING HEIGHT......5000-6000 FT AGL.
* TRANSPORT WINDS....LIGHT WINDS BECOMING SOUTHWEST AROUND 10 MPH
IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS 44 TO 51. HIGHS 64 TO 71. SOUTH WINDS UP TO 5 MPH WITH GUSTS
TO AROUND 15 MPH.
SUNDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS 44 TO 51. HIGHS 67 TO 74. SOUTH WINDS 5 TO
10 MPH WITH GUSTS TO AROUND 15 MPH.
MONDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS 47 TO 54. HIGHS 67 TO 74. SOUTHWEST WINDS
5 TO 10 MPH WITH GUSTS TO AROUND 15 MPH.
TUESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS AROUND 50. HIGHS IN THE UPPER 60S.
WEDNESDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS AROUND 50. HIGHS IN THE UPPER 60S.
IDZ476-131030-
LEMHI AND LOST RIVER RANGE/CHALLIS NF-
230 PM MDT WED AUG 12 2026
..RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT THURSDAY
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
PATCHY SMOKE.
* CHC OF THUNDER.....0 PERCENT.
* MIN TEMPERATURE....47-54.
24 HR TREND......4 DEGREES DOWN.
* MAX HUMIDITY.......60-68 PERCENT VALLEYS AND 51-59 PERCENT
RIDGES.
24 HR TREND......14 PERCENT UP.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...WEST 4 TO 9 MPH SHIFTING TO THE SOUTHEAST
6 TO 9 MPH AFTER MIDNIGHT.
RIDGES/UPR SLOPES....SOUTHWEST 5 TO 10 MPH. GUSTS UP TO 15 MPH
IN THE EVENING.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......400-1400 FT AGL.
* TRANSPORT WINDS....WEST AROUND 10 MPH IN THE EVENING BECOMING
LIGHT.
THURSDAY
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
PATCHY SMOKE THROUGH THE DAY. CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
* CHC OF THUNDER.....50 PERCENT.
* MAX TEMPERATURE....71-78 VALLEYS AND 60-67 RIDGES.
24 HR TREND......7 DEGREES DOWN.
* MIN HUMIDITY.......34-42 PERCENT VALLEYS AND 42-50 PERCENT
RIDGES.
24 HR TREND......17 PERCENT UP.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTH 4 TO 9 MPH.
RIDGES/UPR SLOPES....SOUTHWEST 4 TO 9 MPH WITH GUSTS TO AROUND
15 MPH.
* CHC WETTING RAIN...20 PERCENT.
* MIXING HEIGHT......8000-9000 FT AGL.
* TRANSPORT WINDS....LIGHT WINDS BECOMING SOUTHWEST AROUND 10 MPH
IN THE AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER........CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING. CHANCE OF RAIN SHOWERS THROUGH THE
NIGHT.
* CHC OF THUNDER.....20 PERCENT.
* MIN TEMPERATURE....45-52.
24 HR TREND......2 DEGREES DOWN.
* MAX HUMIDITY.......85-93 PERCENT.
24 HR TREND......30 PERCENT UP.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTHWEST 4 TO 6 MPH SHIFTING TO THE
SOUTHEAST AROUND 4 MPH AFTER MIDNIGHT.
RIDGES/UPR SLOPES....SOUTHWEST 4 TO 6 MPH. GUSTS UP TO 15 MPH
IN THE EVENING.
* CHC WETTING RAIN...20 PERCENT.
* MIXING HEIGHT......300-1300 FT AGL.
* TRANSPORT WINDS....SOUTHWEST AROUND 10 MPH IN THE EVENING
BECOMING LIGHT.
FRIDAY
* SKY/WEATHER........MOSTLY CLOUDY. RAIN SHOWERS LIKELY AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE MORNING, THEN
RAIN SHOWERS AND CHANCE OF THUNDERSTORMS IN
THE AFTERNOON.
* CHC OF THUNDER.....50 PERCENT.
* MAX TEMPERATURE....65-72 VALLEYS AND 54-61 RIDGES.
24 HR TREND......6 DEGREES DOWN.
* MIN HUMIDITY.......52-60 PERCENT VALLEYS AND 65-73 PERCENT
RIDGES.
24 HR TREND......23 PERCENT UP.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTHWEST 4 TO 6 MPH.
RIDGES/UPR SLOPES....SOUTHWEST 4 TO 7 MPH. GUSTS UP TO 15 MPH
IN THE AFTERNOON.
* CHC WETTING RAIN...80 PERCENT.
* MIXING HEIGHT......6000-7000 FT AGL.
* TRANSPORT WINDS....LIGHT WINDS BECOMING SOUTHWEST AROUND 15 MPH
IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS 43 TO 50. HIGHS 62 TO 69. SOUTH WINDS 5 TO 10 MPH WITH GUSTS
TO AROUND 15 MPH.
SUNDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS 43 TO 50. HIGHS 65 TO 72. SOUTHWEST WINDS
5 TO 10 MPH WITH GUSTS TO AROUND 15 MPH.
MONDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS 45 TO 52. HIGHS 65 TO 72. SOUTHWEST WINDS 5 TO 10 MPH WITH
GUSTS TO AROUND 20 MPH.
TUESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS AROUND 50. HIGHS AROUND 70.
WEDNESDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS AROUND 50. HIGHS IN THE UPPER 60S.
IDZ422-131030-
SAWTOOTH RANGE/NORTHERN SAWTOOTH NF-
230 PM MDT WED AUG 12 2026
..RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT THURSDAY
TONIGHT
* SKY/WEATHER........PARTLY CLOUDY. PATCHY SMOKE IN THE EVENING.
* CHC OF THUNDER.....0 PERCENT.
* MIN TEMPERATURE....49-56.
24 HR TREND......3 DEGREES DOWN.
* MAX HUMIDITY.......51-59 PERCENT VALLEYS AND 43-51 PERCENT
RIDGES.
24 HR TREND......10 PERCENT UP.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...WEST 6 TO 11 MPH SHIFTING TO THE NORTH 4
TO 5 MPH AFTER MIDNIGHT.
RIDGES/UPR SLOPES....WEST 5 TO 10 MPH. GUSTS UP TO 15 MPH IN
THE EVENING.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......200-1200 FT AGL.
* TRANSPORT WINDS....WEST AROUND 10 MPH IN THE EVENING BECOMING
LIGHT.
THURSDAY
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
SLIGHT CHANCE OF RAIN IN THE MORNING, THEN
CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON.
* CHC OF THUNDER.....20 PERCENT.
* MAX TEMPERATURE....70-77 VALLEYS AND 60-67 RIDGES.
24 HR TREND......9 DEGREES DOWN.
* MIN HUMIDITY.......38-46 PERCENT.
24 HR TREND......20 PERCENT UP.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTH 5 TO 10 MPH.
RIDGES/UPR SLOPES....SOUTHWEST 5 TO 10 MPH WITH GUSTS TO AROUND
15 MPH.
* CHC WETTING RAIN...10 PERCENT.
* MIXING HEIGHT......9250-10250 FT AGL.
* TRANSPORT WINDS....LIGHT WINDS BECOMING SOUTHWEST AROUND 15 MPH
IN THE AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING,
THEN CHANCE OF RAIN AFTER MIDNIGHT.
* CHC OF THUNDER.....20 PERCENT.
* MIN TEMPERATURE....44-51.
24 HR TREND......4 DEGREES DOWN.
* MAX HUMIDITY.......86-94 PERCENT.
24 HR TREND......41 PERCENT UP.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...WEST 4 TO 6 MPH SHIFTING TO THE NORTHEAST
AROUND 4 MPH AFTER MIDNIGHT.
RIDGES/UPR SLOPES....SOUTH 4 TO 6 MPH.
* CHC WETTING RAIN...20 PERCENT.
* MIXING HEIGHT......200-1200 FT AGL.
* TRANSPORT WINDS....SOUTHWEST AROUND 10 MPH IN THE EVENING
BECOMING LIGHT.
FRIDAY
* SKY/WEATHER........MOSTLY CLOUDY. RAIN SHOWERS LIKELY AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE MORNING, THEN
RAIN SHOWERS AND CHANCE OF THUNDERSTORMS IN
THE AFTERNOON.
* CHC OF THUNDER.....50 PERCENT.
* MAX TEMPERATURE....67-74 VALLEYS AND 55-62 RIDGES.
24 HR TREND......4 DEGREES DOWN.
* MIN HUMIDITY.......48-56 PERCENT VALLEYS AND 62-70 PERCENT
RIDGES.
24 HR TREND......16 PERCENT UP.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...NORTHEAST 4 TO 5 MPH SHIFTING TO THE
SOUTHWEST 4 TO 6 MPH IN THE AFTERNOON.
RIDGES/UPR SLOPES....SOUTH 4 TO 7 MPH. GUSTS UP TO 15 MPH IN
THE AFTERNOON.
* CHC WETTING RAIN...50 PERCENT.
* MIXING HEIGHT......6750-7750 FT AGL.
* TRANSPORT WINDS....LIGHT WINDS BECOMING SOUTHWEST AROUND 15 MPH
IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS 43 TO 50. HIGHS 63 TO 70. SOUTHEAST WINDS 5 TO 10 MPH WITH
GUSTS TO AROUND 15 MPH.
SUNDAY
MOSTLY CLEAR. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS 43 TO 50. HIGHS 68 TO 75. EAST WINDS 5 TO
10 MPH WITH GUSTS TO AROUND 15 MPH.
MONDAY
PARTLY CLOUDY. LOWS 46 TO 53. HIGHS 69 TO 76. SOUTH
WINDS 5 TO 10 MPH WITH GUSTS TO AROUND 15 MPH.
TUESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS AROUND 50. HIGHS IN THE LOWER 70S.
WEDNESDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS AROUND 50. HIGHS AROUND 70.
IDZ425-131030-
MIDDLE SNAKE RIVER VALLEY/TWIN FALLS BLM NORTH OF THE SNAKE RIVER-
230 PM MDT WED AUG 12 2026
..RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT THURSDAY
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
PATCHY SMOKE.
* CHC OF THUNDER.....0 PERCENT.
* MIN TEMPERATURE....AROUND 60.
24 HR TREND......3 DEGREES DOWN.
* MAX HUMIDITY.......59-67 PERCENT.
24 HR TREND......13 PERCENT UP.
* 20FT WINDS.........SOUTHWEST WINDS 7 TO 12 MPH SHIFTING TO THE
EAST 4 TO 6 MPH AFTER MIDNIGHT. GUSTS UP TO 20
MPH.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......200-1200 FT AGL.
* TRANSPORT WINDS....SOUTHWEST AROUND 10 MPH SHIFTING TO THE
SOUTHEAST AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS
IN THE MORNING, THEN CHANCE OF RAIN SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
* CHC OF THUNDER.....20 PERCENT.
* MAX TEMPERATURE....AROUND 79.
24 HR TREND......11 DEGREES DOWN.
* MIN HUMIDITY.......48-56 PERCENT.
24 HR TREND......26 PERCENT UP.
* 20FT WINDS.........SOUTHEAST WINDS 5 TO 8 MPH SHIFTING TO THE
SOUTHWEST 5 TO 10 MPH IN THE AFTERNOON. GUSTS
UP TO 20 MPH.
* CHC WETTING RAIN...10 PERCENT.
* MIXING HEIGHT......7750-8750 FT AGL.
* TRANSPORT WINDS....SOUTH AROUND 10 MPH SHIFTING TO THE SOUTHWEST
IN THE AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS
IN THE EVENING. SLIGHT CHANCE OF THUNDERSTORMS
THROUGH THE NIGHT. CHANCE OF RAIN AFTER
MIDNIGHT.
* CHC OF THUNDER.....20 PERCENT.
* MIN TEMPERATURE....51-57.
24 HR TREND......7 DEGREES DOWN.
* MAX HUMIDITY.......93-100 PERCENT.
24 HR TREND......35 PERCENT UP.
* 20FT WINDS.........SOUTH WINDS 4 TO 6 MPH WITH GUSTS TO AROUND 15
MPH SHIFTING TO THE EAST AFTER MIDNIGHT.
* CHC WETTING RAIN...10 PERCENT.
* MIXING HEIGHT......300-1300 FT AGL.
* TRANSPORT WINDS....SOUTHWEST AROUND 10 MPH SHIFTING TO THE EAST
AFTER MIDNIGHT.
FRIDAY
* SKY/WEATHER........MOSTLY CLOUDY. CHANCE OF THUNDERSTORMS IN THE
MORNING. CHANCE OF RAIN SHOWERS THROUGH THE
DAY. SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
* CHC OF THUNDER.....50 PERCENT.
* MAX TEMPERATURE....AROUND 79.
24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......47-55 PERCENT.
24 HR TREND......LITTLE CHANGE.
* 20FT WINDS.........EAST WINDS 4 TO 6 MPH SHIFTING TO THE
SOUTHWEST 4 TO 8 MPH WITH GUSTS TO AROUND 15
MPH IN THE AFTERNOON.
* CHC WETTING RAIN...20 PERCENT.
* MIXING HEIGHT......8000-9000 FT AGL.
* TRANSPORT WINDS....SOUTHEAST AROUND 10 MPH SHIFTING TO THE
SOUTHWEST IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS 49 TO 54. HIGHS AROUND 80. EAST WINDS 5 TO
10 MPH WITH GUSTS TO AROUND 15 MPH.
SUNDAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE MID
80S. EAST WINDS 5 TO 10 MPH WITH GUSTS TO AROUND 20 MPH.
MONDAY
PARTLY CLOUDY. LOWS 52 TO 57. HIGHS IN THE MID 80S.
SOUTHEAST WINDS 5 TO 10 MPH WITH GUSTS TO AROUND 15 MPH.
TUESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN. LOWS IN THE
MID 50S. HIGHS IN THE MID 80S.
WEDNESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN. LOWS IN
THE MID 50S. HIGHS IN THE LOWER 80S.
IDZ427-131030-
GOOSE CREEK AND RAFT RIVER VALLEY/SOUTHERN SAWTOOTH NF/TWIN FALLS
BLM SOUTH OF THE SNAKE RIVER-
230 PM MDT WED AUG 12 2026
..RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT THURSDAY
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY. PATCHY SMOKE.
* CHC OF THUNDER.....0 PERCENT.
* MIN TEMPERATURE....57-64.
24 HR TREND......5 DEGREES DOWN.
* MAX HUMIDITY.......61-69 PERCENT.
24 HR TREND......15 PERCENT UP.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTH 5 TO 10 MPH.
RIDGES/UPR SLOPES....SOUTH 6 TO 11 MPH WITH GUSTS TO AROUND 20
MPH.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......200-1200 FT AGL.
* TRANSPORT WINDS....SOUTH AROUND 10 MPH.
THURSDAY
* SKY/WEATHER........MOSTLY CLOUDY. PATCHY SMOKE THROUGH THE DAY.
CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE MORNING. RAIN SHOWERS
LIKELY AND CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
* CHC OF THUNDER.....50 PERCENT.
* MAX TEMPERATURE....69-76.
24 HR TREND......11 DEGREES DOWN.
* MIN HUMIDITY.......48-56 PERCENT.
24 HR TREND......25 PERCENT UP.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTHWEST 5 TO 10 MPH.
RIDGES/UPR SLOPES....SOUTHWEST 5 TO 10 MPH WITH GUSTS TO AROUND
15 MPH.
* CHC WETTING RAIN...30 PERCENT.
* MIXING HEIGHT......7250-8250 FT AGL.
* TRANSPORT WINDS....SOUTHWEST AROUND 10 MPH.
THURSDAY NIGHT
* SKY/WEATHER........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS IN THE
EVENING. SLIGHT CHANCE OF THUNDERSTORMS
THROUGH THE NIGHT. SLIGHT CHANCE OF RAIN
SHOWERS AFTER MIDNIGHT.
* CHC OF THUNDER.....20 PERCENT.
* MIN TEMPERATURE....50-57.
24 HR TREND......7 DEGREES DOWN.
* MAX HUMIDITY.......83-91 PERCENT.
24 HR TREND......22 PERCENT UP.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTH 4 TO 9 MPH.
RIDGES/UPR SLOPES....SOUTH 5 TO 10 MPH WITH GUSTS TO AROUND 15
MPH.
* CHC WETTING RAIN...10 PERCENT.
* MIXING HEIGHT......300-1300 FT AGL.
* TRANSPORT WINDS....SOUTH AROUND 10 MPH.
FRIDAY
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
CHANCE OF RAIN SHOWERS IN THE MORNING. CHANCE
OF THUNDERSTORMS THROUGH THE DAY. RAIN SHOWERS
LIKELY IN THE AFTERNOON.
* CHC OF THUNDER.....50 PERCENT.
* MAX TEMPERATURE....70-77.
24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......48-56 PERCENT.
24 HR TREND......2 PERCENT DOWN.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTH 4 TO 7 MPH SHIFTING TO THE SOUTHWEST
IN THE AFTERNOON.
RIDGES/UPR SLOPES....SOUTHWEST 4 TO 8 MPH WITH GUSTS TO AROUND
15 MPH.
* CHC WETTING RAIN...30 PERCENT.
* MIXING HEIGHT......8000-9000 FT AGL.
* TRANSPORT WINDS....SOUTHWEST AROUND 10 MPH.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS 49 TO 56. HIGHS 72 TO 79. SOUTH WINDS 10 TO 15 MPH WITH
GUSTS TO AROUND 20 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 50 TO 57. HIGHS 75 TO 82. SOUTH
WINDS 5 TO 10 MPH WITH GUSTS TO AROUND 20 MPH.
MONDAY
PARTLY CLOUDY. LOWS 53 TO 60. HIGHS 77 TO 84. SOUTH
WINDS 5 TO 10 MPH WITH GUSTS TO AROUND 20 MPH.
TUESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE LOWER 80S.
WEDNESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS IN THE UPPER 70S.
IDZ410-131030-
UPPER SNAKE RIVER VALLEY/IDAHO FALLS BLM-
230 PM MDT WED AUG 12 2026
..RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT THURSDAY
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
* CHC OF THUNDER.....0 PERCENT.
* MIN TEMPERATURE....51-58.
24 HR TREND......7 DEGREES DOWN.
* MAX HUMIDITY.......66-74 PERCENT.
24 HR TREND......20 PERCENT UP.
* 20FT WINDS.........SOUTH WINDS 8 TO 13 MPH SHIFTING TO THE EAST 6
TO 9 MPH AFTER MIDNIGHT. GUSTS UP TO 20 MPH.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......300-1300 FT AGL.
* TRANSPORT WINDS....SOUTH 10 TO 15 MPH.
THURSDAY
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
SLIGHT CHANCE OF RAIN IN THE MORNING, THEN
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON.
* CHC OF THUNDER.....50 PERCENT.
* MAX TEMPERATURE....71-78.
24 HR TREND......10 DEGREES DOWN.
* MIN HUMIDITY.......52-60 PERCENT.
24 HR TREND......29 PERCENT UP.
* 20FT WINDS.........SOUTHEAST WINDS 5 TO 8 MPH SHIFTING TO THE
SOUTH 7 TO 10 MPH IN THE AFTERNOON. GUSTS UP
TO 15 MPH.
* CHC WETTING RAIN...20 PERCENT.
* MIXING HEIGHT......7250-8250 FT AGL.
* TRANSPORT WINDS....SOUTH 10 TO 15 MPH.
THURSDAY NIGHT
* SKY/WEATHER........CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING, THEN CHANCE OF
RAIN AFTER MIDNIGHT.
* CHC OF THUNDER.....20 PERCENT.
* MIN TEMPERATURE....46-52.
24 HR TREND......5 DEGREES DOWN.
* MAX HUMIDITY.......91-99 PERCENT.
24 HR TREND......27 PERCENT UP.
* 20FT WINDS.........SOUTHEAST WINDS 4 TO 6 MPH. GUSTS UP TO 15 MPH
IN THE EVENING.
* CHC WETTING RAIN...20 PERCENT.
* MIXING HEIGHT......400-1400 FT AGL.
* TRANSPORT WINDS....SOUTHEAST AROUND 10 MPH IN THE EVENING
BECOMING LIGHT.
FRIDAY
* SKY/WEATHER........MOSTLY CLOUDY. RAIN SHOWERS LIKELY AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE MORNING, THEN
RAIN SHOWERS AND CHANCE OF THUNDERSTORMS IN
THE AFTERNOON.
* CHC OF THUNDER.....50 PERCENT.
* MAX TEMPERATURE....69-76.
24 HR TREND......3 DEGREES DOWN.
* MIN HUMIDITY.......53-61 PERCENT.
24 HR TREND......3 PERCENT UP.
* 20FT WINDS.........SOUTHEAST WINDS 4 TO 5 MPH SHIFTING TO THE
SOUTHWEST 4 TO 9 MPH IN THE AFTERNOON. GUSTS
UP TO 15 MPH.
* CHC WETTING RAIN...30 PERCENT.
* MIXING HEIGHT......7250-8250 FT AGL.
* TRANSPORT WINDS....LIGHT WINDS BECOMING SOUTHWEST AROUND 15 MPH
IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS. LOWS
44 TO 51. HIGHS 70 TO 77. SOUTHEAST WINDS 5 TO 10 MPH WITH GUSTS
TO AROUND 15 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 43 TO 50. HIGHS 75 TO 82. EAST WINDS 5 TO
10 MPH WITH GUSTS TO AROUND 15 MPH.
MONDAY
PARTLY CLOUDY. LOWS 46 TO 53. HIGHS 76 TO 83. SOUTHEAST
WINDS 5 TO 10 MPH WITH GUSTS TO AROUND 15 MPH.
TUESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS AROUND 80.
WEDNESDAY
PARTLY CLOUDY WITH CHANCE OF RAIN AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 70S.
IDZ411-131030-
CENTENNIAL MOUNTAINS AND SNAKE RIVER RANGE/TARGHEE NF-
230 PM MDT WED AUG 12 2026
..RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT THURSDAY
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE EVENING. PATCHY SMOKE IN
THE EVENING. AREAS OF SMOKE AFTER MIDNIGHT.
* CHC OF THUNDER.....20 PERCENT.
* MIN TEMPERATURE....47-54.
24 HR TREND......7 DEGREES DOWN.
* MAX HUMIDITY.......82-90 PERCENT VALLEYS AND 71-79 PERCENT
RIDGES.
24 HR TREND......20 PERCENT UP.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...EAST 4 TO 7 MPH.
RIDGES/UPR SLOPES....EAST 4 TO 7 MPH. GUSTS UP TO 15 MPH IN THE
EVENING.
* CHC WETTING RAIN...10 PERCENT.
* MIXING HEIGHT......400-1400 FT AGL.
* TRANSPORT WINDS....SOUTHEAST AROUND 10 MPH.
THURSDAY
* SKY/WEATHER........MOSTLY CLOUDY. PATCHY SMOKE IN THE MORNING.
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON.
* CHC OF THUNDER.....50 PERCENT.
* MAX TEMPERATURE....AROUND 73 VALLEYS AND 63-70 RIDGES.
24 HR TREND......8 DEGREES DOWN.
* MIN HUMIDITY.......61-69 PERCENT.
24 HR TREND......28 PERCENT UP.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTH 4 TO 8 MPH.
RIDGES/UPR SLOPES....SOUTH 4 TO 8 MPH WITH GUSTS TO AROUND 15
MPH.
* CHC WETTING RAIN...50 PERCENT.
* MIXING HEIGHT......5000-6000 FT AGL.
* TRANSPORT WINDS....LIGHT WINDS BECOMING SOUTHWEST AROUND 10 MPH
IN THE AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER........CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING. SCATTERED RAIN SHOWERS THROUGH THE
NIGHT. PATCHY SMOKE AFTER MIDNIGHT.
* CHC OF THUNDER.....20 PERCENT.
* MIN TEMPERATURE....44-51.
24 HR TREND......3 DEGREES DOWN.
* MAX HUMIDITY.......99 PERCENT VALLEYS AND 90-98 PERCENT RIDGES.
24 HR TREND......20 PERCENT UP.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...LIGHT WINDS.
RIDGES/UPR SLOPES....SOUTHEAST 4 TO 5 MPH WITH GUSTS TO AROUND
15 MPH IN THE EVENING BECOMING LIGHT.
* CHC WETTING RAIN...20 PERCENT.
* MIXING HEIGHT......300-1300 FT AGL.
* TRANSPORT WINDS....SOUTHEAST AROUND 10 MPH IN THE EVENING
BECOMING LIGHT.
FRIDAY
* SKY/WEATHER........CLOUDY. RAIN SHOWERS LIKELY AND SLIGHT CHANCE
OF THUNDERSTORMS IN THE MORNING, THEN RAIN
SHOWERS AND CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
* CHC OF THUNDER.....50 PERCENT.
* MAX TEMPERATURE....AROUND 69 VALLEYS AND 59-66 RIDGES.
24 HR TREND......4 DEGREES DOWN.
* MIN HUMIDITY.......63-71 PERCENT VALLEYS AND 69-77 PERCENT
RIDGES.
24 HR TREND......12 PERCENT UP.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...LIGHT WINDS BECOMING SOUTHWEST 4 TO 6 MPH
IN THE AFTERNOON.
RIDGES/UPR SLOPES....SOUTH 4 TO 6 MPH. GUSTS UP TO 15 MPH IN
THE AFTERNOON.
* CHC WETTING RAIN...70 PERCENT.
* MIXING HEIGHT......5750-6750 FT AGL.
* TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS. LOWS
42 TO 49. HIGHS 62 TO 69. SOUTH WINDS 5 TO 10 MPH WITH GUSTS TO
AROUND 15 MPH.
SUNDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS 41 TO 48. HIGHS 66 TO 73. SOUTHEAST WINDS
5 TO 10 MPH WITH GUSTS TO AROUND 15 MPH.
MONDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 44 TO 51. HIGHS 67 TO 74. SOUTHEAST WINDS
5 TO 10 MPH WITH GUSTS TO AROUND 20 MPH.
TUESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE LOWER 70S.
WEDNESDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS AROUND 70.
IDZ413-131030-
CARIBOU RANGE/CARIBOU NF-
230 PM MDT WED AUG 12 2026
..RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT THURSDAY
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING.
* CHC OF THUNDER.....20 PERCENT.
* MIN TEMPERATURE....52-59.
24 HR TREND......6 DEGREES DOWN.
* MAX HUMIDITY.......75-83 PERCENT.
24 HR TREND......14 PERCENT UP.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTHEAST 4 TO 6 MPH.
RIDGES/UPR SLOPES....SOUTHEAST 4 TO 7 MPH WITH GUSTS TO AROUND
15 MPH.
* CHC WETTING RAIN...10 PERCENT.
* MIXING HEIGHT......400-1400 FT AGL.
* TRANSPORT WINDS....SOUTHEAST AROUND 10 MPH.
THURSDAY
* SKY/WEATHER........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE MORNING,
THEN RAIN SHOWERS LIKELY AND CHANCE OF
THUNDERSTORMS IN THE AFTERNOON.
* CHC OF THUNDER.....50 PERCENT.
* MAX TEMPERATURE....69-76 VALLEYS AND 62-69 RIDGES.
24 HR TREND......9 DEGREES DOWN.
* MIN HUMIDITY.......64-72 PERCENT VALLEYS AND 71-79 PERCENT
RIDGES.
24 HR TREND......33 PERCENT UP.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTHWEST 4 TO 8 MPH.
RIDGES/UPR SLOPES....SOUTH 5 TO 8 MPH WITH GUSTS TO AROUND 15
MPH SHIFTING TO THE SOUTHWEST 4 TO 6 MPH
WITH GUSTS TO AROUND 15 MPH IN THE
AFTERNOON.
* CHC WETTING RAIN...70 PERCENT.
* MIXING HEIGHT......5750-6750 FT AGL.
* TRANSPORT WINDS....SOUTHWEST AROUND 10 MPH.
THURSDAY NIGHT
* SKY/WEATHER........MOSTLY CLOUDY. CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING, THEN CHANCE OF
RAIN AFTER MIDNIGHT.
* CHC OF THUNDER.....50 PERCENT.
* MIN TEMPERATURE....46-53.
24 HR TREND......5 DEGREES DOWN.
* MAX HUMIDITY.......86-94 PERCENT.
24 HR TREND......16 PERCENT UP.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTHEAST 4 TO 6 MPH.
RIDGES/UPR SLOPES....SOUTHEAST 4 TO 6 MPH.
* CHC WETTING RAIN...20 PERCENT.
* MIXING HEIGHT......300-1300 FT AGL.
* TRANSPORT WINDS....SOUTH AROUND 10 MPH.
FRIDAY
* SKY/WEATHER........MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS
IN THE MORNING. RAIN SHOWERS LIKELY THROUGH
THE DAY. CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
* CHC OF THUNDER.....50 PERCENT.
* MAX TEMPERATURE....70-77 VALLEYS AND 63-70 RIDGES.
24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......55-63 PERCENT.
24 HR TREND......12 PERCENT DOWN.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTH 4 TO 9 MPH.
RIDGES/UPR SLOPES....SOUTH 4 TO 7 MPH WITH GUSTS TO AROUND 15
MPH SHIFTING TO THE SOUTHWEST 6 TO 9 MPH
WITH GUSTS TO AROUND 20 MPH IN THE
AFTERNOON.
* CHC WETTING RAIN...30 PERCENT.
* MIXING HEIGHT......8500-9500 FT AGL.
* TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS 45 TO 52. HIGHS 70 TO 77. SOUTH WINDS 5 TO 10 MPH WITH GUSTS
TO AROUND 20 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 45 TO 52. HIGHS 74 TO 81. SOUTHEAST
WINDS 5 TO 10 MPH WITH GUSTS TO AROUND 15 MPH.
MONDAY
PARTLY CLOUDY. LOWS 47 TO 54. HIGHS 75 TO 82. SOUTH
WINDS 5 TO 10 MPH WITH GUSTS TO AROUND 20 MPH.
TUESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 70S.
WEDNESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 70S.
.OUTLOOK FOR AUGUST 20 TO 26: ABOVE NORMAL TEMPERATURES AND
PRECIPITATION.
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