Plan a flight · Sun 7:10 pm PDT (02:10 UTC)

Fresno Yosemite International to Idaho Falls Regional FAT → IDA

535 nautical miles (616 statute miles) northeast on a straight line, true course 039°, about 026° magnetic at the departure end (variation 13E). At 120 knots that is 2 h 50 min at the quickest height in today's winds (30,000 ft, a 69-knot tailwind), arriving about 11:00 pm MDT (05:00 UTC), after sunset at the destination. Right now FAT is VFR, wind from the south-southwest (200°) at 14 knots; IDA is IFR, wind from the southeast (130°) at 3 knots. For planning, not a briefing: the legal preflight briefing comes from Flight Service (1-800-WX-BRIEF) or the FAA's own tools. Airlines fly this pair: 1 flights in the DOT's last twelve reported months, the route's page.

The route the straight line, the warnings crossed, restrictions, pilot reports and the airports along the way · click a mark for its words

Green, blue, red and purple airport dots are the flying conditions reported there now (VFR, marginal VFR, IFR, low IFR); grey means no report. Red areas are SIGMETs, orange areas AIRMETs, hatched red areas temporary flight restrictions. Map tiles: OpenFreeMap, data © OpenStreetMap contributors.

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

SIGMET W10W: thunderstorms (a convective SIGMET) up to 30,000 ft, moving from the southwest at 20 knots, until 8:55 pm PDT (03:55 UTC). Over the route from 109 to 367 nm out.
as issued
```
WSUS33 KKCI 120155
MKCW WST 120155
CONVECTIVE SIGMET 10W
VALID UNTIL 0355Z
NV
FROM 70SW TWF-40NNW BVL-40SW ELY-30ESE OAL-40WNW OAL-70SW TWF
AREA TS MOV FROM 23020KT. TOPS TO FL300.
```
AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 15,000 ft. Over the route from 40 to 178 nm out.
AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the last 416 nm of the route.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the last 396 nm of the route.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 347 nm of the route.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Near the route, 218 nm along the route.
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 69 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 FAT.

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

E75L at 18,000 ft, 17 nm southeast, 4:24 pm PDT (23:24 UTC): moderate turbulence from 18,000 ft to 22,000 ft, remarks: mountain wave a 10-knot loss of airspeed entered by zoa fdcs. 69 nm along the route, 17 nm southeast of the line.
as filed, and in English
```
LOL UA /OV BIH300011/TM 2324/FL 180/TP E75L/TB MOD 180-220/RM MTN WAVE /-10 ENTERED BY ZOA FDCS AWC-WEB
```
Report
a routine report filed through LOL
Where
11 nm northwest (300°) of BIH
Time
23:24 UTC
Height
at 18,000 ft
Aircraft
E75L
Turbulence
moderate from 18,000 ft to 22,000 ft
Remarks
mountain wave a 10-knot loss of airspeed entered by zoa fdcs
BCS3 at 19,000 ft, 37 nm south, 6:53 pm PDT (01:53 UTC): light to moderate rime icing, -13 °C, remarks: zlawc. At the departure end, 37 nm south of the line.
as filed, and in English
```
TPH UA /OV UTI250300/TM 0153/FL190/TP BCS3/TA M13/IC LGT-MOD RIME/RM ZLAWC AWC-WEB
```
Report
a routine report filed through TPH
Where
300 nm west (250°) of UTI
Time
01:53 UTC
Height
at 19,000 ft
Aircraft
BCS3
Temperature
−13 °C
Icing
light to moderate rime
Remarks
zlawc
PC12 at 15,000 ft, 47 nm east, 4:47 pm PDT (23:47 UTC): light rime icing above 15,000 ft. At the destination end, 47 nm east of the line.
as filed, and in English
```
JAC UA /OV JAC200025/TM 2347/FL150/TP PC12/IC LGT RIME 150 /ZLC
```
Report
a routine report filed through JAC
Where
25 nm south (200°) of JAC
Time
23:47 UTC
Height
at 15,000 ft
Aircraft
PC12
Icing
light rime at 15,000 ft zlc

Winds aloft along the route, and the time en route the forecast for use 20:00–03:00 UTC · at 120 knots true airspeed

The eastbound cruising heights for this course (VFR: odd thousands plus 500 ft; above 18,000 ft the forecast levels), with the wind averaged along the line from the 4 forecast points nearest it (FAT, BIH, BAM, PIH). A plus sign is a headwind, a minus sign a tailwind.

Height	Average wind	Head- or tailwind	Temperature	Ground speed	Time en route	Arrival
5,500 ft	250° at 5 kt	−4 kt		124 kt	4 h 19 min	12:29 am MDT (06:29 UTC)
7,500 ft	250° at 8 kt	−7 kt	4 °C	127 kt	4 h 13 min	12:23 am MDT (06:23 UTC)
9,500 ft	240° at 12 kt	−11 kt	2 °C	131 kt	4 h 05 min	12:15 am MDT (06:15 UTC)
11,500 ft	220° at 20 kt	−20 kt	-2 °C	140 kt	3 h 49 min	11:59 pm MDT (05:59 UTC)
13,500 ft	220° at 28 kt	−28 kt	-6 °C	148 kt	3 h 37 min	11:47 pm MDT (05:47 UTC)
15,500 ft	220° at 35 kt	−35 kt	-10 °C	155 kt	3 h 27 min	11:37 pm MDT (05:37 UTC)
17,500 ft	220° at 42 kt	−41 kt	-14 °C	161 kt	3 h 19 min	11:29 pm MDT (05:29 UTC)
18,000 ft FL180	220° at 44 kt	−43 kt	-15 °C	163 kt	3 h 17 min	11:27 pm MDT (05:27 UTC)
24,000 ft FL240	210° at 46 kt	−45 kt	-25 °C	165 kt	3 h 15 min	11:25 pm MDT (05:25 UTC)
30,000 ft FL300	220° at 69 kt	−69 kt	-29 °C	189 kt	2 h 50 min	11:00 pm MDT (05:00 UTC)
34,000 ft FL340	220° at 67 kt	−67 kt	-34 °C	187 kt	2 h 52 min	11:02 pm MDT (05:02 UTC)
39,000 ft FL390	230° at 61 kt	−61 kt	-44 °C	181 kt	2 h 57 min	11:07 pm MDT (05:07 UTC)

Based on data from the 11th at 18:00 UTC; valid on the 12th at 00:00 UTC for use 20:00 to 03:00 UTC; temperatures above 24,000 ft are below zero. Heights are above sea level; a height is left out when the forecast has no wind for it over most of the line (the ground is higher). Ground speed is the airspeed less the headwind; the time en route is for the straight line and ignores climb, descent and routing around weather.

The forecast points as issued

Point	From	3,000	6,000	9,000	12,000	18,000	24,000	30,000	34,000	39,000
FAT	used from 0 nm out; 25 nm from the line	180/7	170/9 7°	200/20 3°	210/27 -3°	240/27 -14°	230/38 -24°	220/57 -27°	230/42 -33°	230/41 -44°
BIH	used from 50 nm out; 28 nm from the line		L/V	210/14 6°	210/20 -2°	230/26 -14°	220/32 -24°	220/63 -27°	220/56 -35°	230/50 -44°
BAM	used from 149 nm out; 98 nm from the line			270/8 4°	230/27 -4°	220/49 -18°	210/52 -26°	220/77 -29°	220/71 -33°	220/63 -43°
PIH	used from 396 nm out; 72 nm from the line		270/10	270/13 1°	210/16 -2°	200/56 -11°	200/51 -23°	200/68 -33°	220/77 -37°	230/73 -44°

The weather now: both ends and the airports along the way public airports with a weather report within 25 nm of the line, one for each stretch

Airport	Where	Conditions	Wind	Visibility	Ceiling	Elevation	Reported
FAT Fresno, CA	departure	VFR Sky: a broken layer at 3,700 feet	from the south-southwest (200°) at 14 knots	10+ mi	3,700 ft	335 ft	6:53 pm PDT (01:53 UTC)
MMH Mammoth Lakes, CA	69 nm out, 3 nm southwest of the line	VFR Sky: scattered clouds at 9,000 feet	from the southeast (140°) at 19 knots, gusting to 30	10+ mi	none	7,134 ft	23:35 UTC
GAB Gabbs, NV	149 nm out, 17 nm northwest of the line	no report just now				4,699 ft
TMT Austin, NV	198 nm out, 10 nm northwest of the line	VFR Sky: scattered clouds at 6,000 feet, overcast at 10,000 feet	from the north-northwest (330°) at 5 knots	10+ mi	10,000 ft	5,735 ft	01:55 UTC
EKO Elko, NV	307 nm out, 14 nm northwest of the line	VFR Sky: scattered clouds at 4,600 feet, a broken layer at 10,000 feet	calm	10+ mi	10,000 ft	5,139 ft	01:56 UTC
LWL Wells, NV	347 nm out, 5 nm south of the line	no report just now				5,769 ft
BYI Burley, ID	446 nm out, 16 nm northwest of the line	VFR Sky: a broken layer at 5,000 feet	from the south-southwest (210°) at 4 knots	10+ mi	5,000 ft	4,153 ft	01:53 UTC
PIH Pocatello, ID	495 nm out, 9 nm southeast of the line, tower	VFR Sky: scattered clouds at 1,200 feet, a broken layer at 7,500 feet, overcast at 8,500 feet Weather: light rain	from the west-southwest (250°) at 12 knots	10+ mi	7,500 ft	4,451 ft	01:53 UTC
IDA Idaho Falls, ID	destination	IFR Sky: overcast at 900 feet Weather: light rain	from the southeast (130°) at 3 knots	10+ mi	900 ft	4,743 ft	7:53 pm MDT (01:53 UTC)

The highest airport on this list sits at 7,134 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At IDA when you get there the forecast at the estimated arrival, 11:00 pm MDT (05:00 UTC)

Wind light and variable, visibility 6 miles, light rain showers, mist, scattered clouds at 700 feet, overcast at 1,500 feet marginal VFR

The whole forecast for IDA

From Sun 6:00 pm MDT (00:00 UTC): wind light and variable, visibility 3 miles, rain, mist, a broken layer at 700 feet, overcast at 1,500 feet
From Sun 8:00 pm MDT (02:00 UTC): wind light and variable, visibility 6 miles, light rain showers, mist, scattered clouds at 700 feet, overcast at 1,500 feet
From Mon 6:00 am MDT (12:00 UTC): wind light and variable, visibility 5 miles, light rain, mist, scattered clouds at 1,000 feet, overcast at 1,500 feet
From Mon 12:00 pm MDT (18:00 UTC): wind from the southwest at 6 knots, visibility 6 miles, light rain showers, mist, scattered clouds at 1,500 feet, overcast at 2,500 feet

The forecast for FAT, the departure

From Sun 5:00 pm PDT (00:00 UTC): wind from the south-southeast at 8 knots, visibility more than 6 miles, a few clouds at 10,000 feet, a few clouds at 13,000 feet and more above
From Sun 9:00 pm PDT (04:00 UTC): wind from the south-southeast at 9 knots, gusting to 20, visibility more than 6 miles, a few clouds at 25,000 feet
From Mon 2:00 am PDT (09:00 UTC): wind from the southeast at 9 knots, visibility more than 6 miles, a few clouds at 25,000 feet

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

6/7094 45NM NE MERCED, CA, Sunday, October 4, 2026 through Tuesday, October 20, 2026 UTC 18 nm from the route, 40 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 20 October · ZOA

Daylight

Sunset at FAT 6:26 pm PDT (01:26 UTC), at IDA 6:50 pm MDT (00:50 UTC) (civil twilight ends 7:19 pm MDT (01:19 UTC)). At 120 knots the arrival at IDA is after sunset there (6:52 pm MDT (00:52 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.

Radar and forecast charts for the regions crossed government pictures, the latest each time the page loads

Radar now, the Pacific Southwest · loop National Weather Service

Radar now, the Pacific Northwest · loop National Weather Service

Radar, the whole country · loop National Weather Service

Surface analysis now Weather Prediction Center

Forecast chart, 12 hours ahead Weather Prediction Center

Forecast chart, 24 hours ahead Weather Prediction Center

Sources: the Aviation Weather Center's data service (SIGMETs, AIRMETs, graphical AIRMETs, pilot reports, winds and temperatures aloft, observations and terminal forecasts), the National Weather Service radar, the Weather Prediction Center's charts, the FAA's temporary flight restriction list and shapes, and the FAA's airport file for the positions, elevations and magnetic variation. Fetched when the page is viewed and kept a few minutes. Each leg is the straight line between its two airports; airways, terrain and airspace are not considered. The airports in detail: Fresno Yosemite International, Idaho Falls Regional.