San Francisco International to Falls Intl/Einarson Field SFO → INL

Warnings the route crosses SIGMETs and AIRMETs whose area the line passes through or comes within 25 nm of

• SIGMET W21W: thunderstorms (a convective SIGMET) up to 27,000 ft, moving from the southwest at 20 knots, until 5:55 am PDT (12:55 UTC). Over the route from 479 to 529 nm out.
  as issued

  WSUS33 KKCI 121055
  MKCW WST 121055
  CONVECTIVE SIGMET 21W
  VALID UNTIL 1255Z
  UT ID NV
  FROM 40ENE TWF-20SSE PIH-40E BVL-20WNW BVL-40ENE TWF
  AREA TS MOV FROM 24020KT. TOPS TO FL270.

• SIGMET C17C: thunderstorms (a convective SIGMET) up to 36,000 ft, moving from the southwest at 40 knots, until 5:55 am PDT (12:55 UTC). Over the route from 1089 to 1119 nm out.
  as issued

  WSUS32 KKCI 121055
  MKCC WST 121055
  CONVECTIVE SIGMET 17C
  VALID UNTIL 1255Z
  SD ND
  FROM 20NW BIS-60E BIS-20WNW PIR-20SW DPR-20NW BIS
  AREA TS MOV FROM 22040KT. TOPS TO FL360.

• AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the first 250 nm of the route.
• AIRMET SIERRA 2E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 100 to 120 nm out.
• AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 310 to 909 nm out.
• AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 340 to 809 nm out.
• AIRMET SIERRA 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the last 939 nm of the route.

A SIGMET warns of weather hazardous to all aircraft; an AIRMET of weather that matters to small aircraft and to flying without instruments. "From 60 to 180 nm out" is measured along the route from SFO.

Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first

• A35K at 32,000 ft, 19 nm northwest, 1:39 am PDT (08:39 UTC): moderate chop turbulence, remarks: fdcs zoa. At the departure end, 19 nm northwest of the line.
  as filed, and in English

  OAK UA /OV OAK348024/TM 0839/FL320/TP A35K/TB MOD CHOP/RM FDCS ZOA

  Report

  a routine report filed through OAK

  Where

  24 nm north (348°) of OAK

  Time

  08:39 UTC

  Height

  at 32,000 ft

  Aircraft

  A35K

  Turbulence

  moderate chop

  Remarks

  fdcs zoa

• C340 at 24,000 ft, 42 nm northwest, 3:59 am PDT (10:59 UTC): light to moderate icing, -22 °C. 979 nm along the route, 42 nm northwest of the line.
  as filed, and in English

  DIK UA /OV DIK240054/TM 1059/FL240/TP C340/TA M22/IC LGT-MOD CLR /ZLC

  Report

  a routine report filed through DIK

  Where

  54 nm southwest (240°) of DIK

  Time

  10:59 UTC

  Height

  at 24,000 ft

  Aircraft

  C340

  Temperature

  −22 °C

  Icing

  light to moderate clear zlc

• P28A at 4,000 ft, 45 nm southeast, 2:27 am PDT (09:27 UTC): no turbulence, no icing, overcast from 1,300 ft to 3,800 ft, 10 °C. 1239 nm along the route, 45 nm southeast of the line.
  as filed, and in English

  FAR UA /OV KFAR270015/TM 0927/FL040/TP P28A/SK OVC013-TOP038/TA 10/TB NEG/IC NEG

  Report

  a routine report filed through FAR

  Where

  15 nm west (270°) of KFAR

  Time

  09:27 UTC

  Height

  at 4,000 ft

  Aircraft

  P28A

  Sky

  overcast from 1,300 ft, tops 3,800 ft

  Temperature

  10 °C

  Turbulence

  none

  Icing

  none

At INL when you get there the forecast at the estimated arrival, 2:41 pm CDT (19:41 UTC)

Wind from the east-northeast at 10 knots, gusting to 19, visibility more than 6 miles, showers nearby, overcast at 900 feet IFR

The whole forecast for INL

• From Mon 7:00 am CDT (12:00 UTC): wind from the east-northeast at 10 knots, gusting to 19, visibility more than 6 miles, showers nearby, overcast at 900 feet
• From Mon 3:00 pm CDT (20:00 UTC): wind from the east-northeast at 10 knots, gusting to 18, visibility 5 miles, light rain showers, mist, overcast at 700 feet
• From Tue 1:00 am CDT (06:00 UTC): wind from the east at 5 knots, visibility more than 6 miles, overcast at 500 feet

The forecast for SFO, the departure

• From Mon 5:00 am PDT (12:00 UTC): wind from the west at 4 knots, visibility more than 6 miles, a few clouds at 2,000 feet, a few clouds at 9,000 feet
• From Mon 3:00 pm PDT (22:00 UTC): wind from the west at 12 knots, visibility more than 6 miles, clear skies
• From Mon 8:00 pm PDT (03:00 UTC): wind from the west at 6 knots, visibility more than 6 miles, clear skies

Temporary flight restrictions on the line or within 25 nm of it

• 6/4348 GRAND FORKS AFB, ND, Sunday, March 8, 2026 through Sunday, November 1, 2026 Local 6 nm from the route, 1249 nm along the route · security · until 1 November · ZMP

Daylight

Sunset at SFO 6:35 pm PDT (01:35 UTC), at INL 6:30 pm CDT (23:30 UTC) (civil twilight ends 7:02 pm CDT (00:02 UTC)).

Each restriction opens the FAA's own page with the exact area, heights and times. Ordinary notices to air missions (closed runways, lights out) are not shown: the FAA's notice search is not open to sites like this one at this time.