Salt Lake City International to Spokane International SLC → GEG
474 nautical miles (546 statute miles) northwest on a straight line, true course 332°, about 321° magnetic at the departure end (variation 11E). At 120 knots that is 3 h 12 min at the quickest height in today's winds (24,000 ft, a 28-knot tailwind), arriving about 7:22 am PDT (14:22 UTC). Right now SLC is VFR, wind from the south-southeast (150°) at 13 knots, gusting to 20; GEG is VFR, wind from the northeast (040°) at 6 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: 3,326 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 W21W: thunderstorms (a convective SIGMET) up to 27,000 ft, moving from the southwest at 20 knots, until 6:55 am MDT (12:55 UTC). Over the route from 69 to 129 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.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the first 257 nm of the route.
- AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the first 0 nm of the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 445 nm of 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 route from 99 to 376 nm out.
- AIRMET ZULU 2C: moderate icing up to 18,000 ft. Over the last 198 nm of the route.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the last 178 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 SLC.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
Not fetched just now.
Winds aloft along the route, and the time en route the forecast for use 08:00–15:00 UTC · at 120 knots true airspeed
The westbound cruising heights for this course (VFR: even thousands plus 500 ft; above 18,000 ft the forecast levels), with the wind averaged along the line from the 5 forecast points nearest it (SLC, PIH, BOI, LWS, GEG). A plus sign is a headwind, a minus sign a tailwind.
| Height | Average wind | Head- or tailwind | Temperature | Ground speed | Time en route | Arrival |
|---|---|---|---|---|---|---|
| 4,500 ft | 010° at 2 kt | +2 kt | 0 °C | 118 kt | 4 h 01 min | 8:11 am PDT (15:11 UTC) |
| 6,500 ft | 010° at 1 kt | +1 kt | -2 °C | 119 kt | 3 h 59 min | 8:09 am PDT (15:09 UTC) |
| 8,500 ft | 170° at 5 kt | −5 kt | -5 °C | 125 kt | 3 h 48 min | 7:58 am PDT (14:58 UTC) |
| 10,500 ft | 180° at 10 kt | −8 kt | -5 °C | 128 kt | 3 h 42 min | 7:52 am PDT (14:52 UTC) |
| 12,500 ft | 190° at 15 kt | −11 kt | -8 °C | 131 kt | 3 h 37 min | 7:47 am PDT (14:47 UTC) |
| 14,500 ft | 190° at 20 kt | −15 kt | -12 °C | 135 kt | 3 h 31 min | 7:41 am PDT (14:41 UTC) |
| 16,500 ft | 190° at 25 kt | −20 kt | -16 °C | 140 kt | 3 h 23 min | 7:33 am PDT (14:33 UTC) |
| 18,000 ft FL180 | 190° at 29 kt | −23 kt | -19 °C | 143 kt | 3 h 19 min | 7:29 am PDT (14:29 UTC) |
| 24,000 ft FL240 | 200° at 40 kt | −28 kt | -29 °C | 148 kt | 3 h 12 min | 7:22 am PDT (14:22 UTC) |
| 30,000 ft FL300 | 210° at 41 kt | −21 kt | -33 °C | 141 kt | 3 h 22 min | 7:32 am PDT (14:32 UTC) |
| 34,000 ft FL340 | 220° at 40 kt | −15 kt | -35 °C | 135 kt | 3 h 31 min | 7:41 am PDT (14:41 UTC) |
| 39,000 ft FL390 | 220° at 41 kt | −14 kt | -41 °C | 134 kt | 3 h 32 min | 7:42 am PDT (14:42 UTC) |
Based on data from the 12th at 06:00 UTC; valid on the 12th at 12:00 UTC for use 08:00 to 15:00 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| SLC | used from 0 nm out; 25 nm from the line | 200/16 | 210/23 4° | 220/34 -3° | 210/40 -16° | 220/66 -23° | 220/64 -31° | 220/57 -36° | 220/50 -43° | |
| PIH | used from 49 nm out; 63 nm from the line | 070/8 | 150/19 1° | 180/32 -4° | 210/44 -17° | 210/37 -28° | 210/74 -31° | 220/68 -35° | 220/60 -43° | |
| BOI | used from 198 nm out; 83 nm from the line | 320/11 1° | 280/8 -5° | 220/14 -11° | 200/60 -19° | 190/66 -31° | 210/46 -32° | 220/50 -33° | 220/43 -39° | |
| LWS | used from 297 nm out; 81 nm from the line | L/V | 340/5 -3° | L/V -6° | 040/7 -10° | 100/23 -22° | 180/30 -31° | 190/11 -34° | 200/11 -36° | 220/23 -40° |
| GEG | used from 445 nm out; 15 nm from the line | 060/7 -2° | 070/12 -6° | 050/8 -8° | 120/11 -21° | 110/18 -33° | 030/22 -37° | 040/6 -38° | 240/7 -41° |
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 |
|---|---|---|---|---|---|---|---|
| SLC Salt Lake City, UT | departure | VFR Sky: a few clouds at 4,000 feet, scattered clouds at 7,500 feet, a broken layer at 10,000 feet, a broken layer at 13,000 feet | from the south-southeast (150°) at 13 knots, gusting to 20 | 10+ mi | 10,000 ft | 4,230 ft | 4:54 am MDT (10:54 UTC) |
| OGD Ogden, UT | 20 nm out, 11 nm northeast of the line, tower | VFR Sky: a broken layer at 6,500 feet, a broken layer at 8,000 feet, overcast at 10,000 feet | from the south-southeast (160°) at 7 knots | 10+ mi | 6,500 ft | 4,472 ft | 10:53 UTC |
| BYI Burley, ID | 129 nm out, 20 nm west of the line | VFR Sky: overcast at 3,400 feet Weather: light rain | from the south-southeast (160°) at 6 knots | 9 mi | 3,400 ft | 4,153 ft | 10:53 UTC |
| SUN Hailey, ID | 188 nm out, 12 nm west of the line, tower | VFR Sky: scattered clouds at 600 feet, a broken layer at 3,700 feet, overcast at 4,300 feet Weather: light rain | from the south (170°) at 4 knots | 7 mi | 3,700 ft | 5,319 ft | 10:55 UTC |
| LLJ Challis, ID | 247 nm out, 23 nm east of the line | marginal VFR Sky: overcast at 2,700 feet | from the north-northwest (330°) at 6 knots | 10+ mi | 2,700 ft | 5,075 ft | 10:55 UTC |
| GIC Grangeville, ID | 356 nm out, 4 nm west of the line | marginal VFR Sky: scattered clouds at 700 feet, overcast at 1,500 feet | calm | 10+ mi | 1,500 ft | 3,313 ft | 10:55 UTC |
| LWS Lewiston, ID | 395 nm out, 22 nm west of the line, tower | VFR Sky: a broken layer at 7,000 feet | calm | 10+ mi | 7,000 ft | 1,442 ft | 10:56 UTC |
| GEG Spokane, WA | destination | VFR Sky: a few clouds at 5,000 feet, scattered clouds at 8,500 feet, a broken layer at 10,000 feet | from the northeast (040°) at 6 knots | 10+ mi | 10,000 ft | 2,385 ft | 3:53 am PDT (10:53 UTC) |
The highest airport on this list sits at 5,319 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At GEG when you get there the forecast at the estimated arrival, 7:22 am PDT (14:22 UTC)
Wind from the northeast at 7 knots, visibility more than 6 miles, scattered clouds at 7,000 feet VFR
The whole forecast for GEG
- From Sun 11:00 pm PDT (06:00 UTC): wind from the northeast at 7 knots, visibility more than 6 miles, scattered clouds at 7,000 feet
- From Mon 1:00 pm PDT (20:00 UTC): wind light and variable, visibility more than 6 miles, a few clouds at 10,000 feet
The forecast for SLC, the departure
- From Mon 3:00 am MDT (09:00 UTC): wind from the south at 9 knots, visibility more than 6 miles, scattered clouds at 6,000 feet, a broken layer at 8,000 feet
- 30% chance between Mon 3:00 am MDT (09:00 UTC) and 6:00 am MDT (12:00 UTC): wind variable at 10 knots, gusting to 25, light rain showers, a broken layer at 5,000 feet
- From Mon 6:00 am MDT (12:00 UTC): wind from the south at 11 knots, visibility more than 6 miles, light rain showers, a few clouds at 2,000 feet, a broken layer at 5,000 feet
- From Mon 3:00 pm MDT (21:00 UTC): wind from the northwest at 11 knots, visibility more than 6 miles, light rain showers, scattered clouds at 2,000 feet, a broken layer at 5,000 feet
- From Mon 11:00 pm MDT (05:00 UTC): wind from the south-southeast at 9 knots, visibility more than 6 miles, light rain showers, scattered clouds at 2,000 feet, a broken layer at 3,500 feet
Temporary flight restrictions on the line or within 25 nm of it
No temporary flight restriction on or near this route right now.
Daylight
Sunset at SLC 6:50 pm MDT (00:50 UTC), at GEG 6:06 pm PDT (01:06 UTC) (civil twilight ends 6:37 pm PDT (01:37 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
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: Salt Lake City International, Spokane International.