Yakima Air Trml/Mcallister Field to Spokane International YKM → GEG
138 nautical miles (159 statute miles) northeast on a straight line, true course 062°, about 046° magnetic at the departure end (variation 16E). At 120 knots that is 1 h 05 min at the quickest height in today's winds (39,000 ft, a 7-knot tailwind), arriving about 8:14 pm PDT (03:14 UTC), after sunset at the destination. 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: 1,569 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
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the first 89 nm of the route.
- AIRMET ZULU 2C: moderate icing up to 16,000 ft. Over the last 118 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 YKM.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- A321 at 13,500 ft, 47 nm northwest, 6:54 pm PDT (01:54 UTC): remarks: zse. At the departure end, 47 nm northwest of the line.
as filed, and in English
SEA UA /OV SEA120045/TM 0154/FL135/TP A321/SK TOP130/RM ZSE
- Report
- a routine report filed through SEA
- Where
- 45 nm southeast (120°) of SEA
- Time
- 01:54 UTC
- Height
- at 13,500 ft
- Aircraft
- A321
- Sky
- TOP130
- Remarks
- zse
- C337 at 12,000 ft, 21 nm south, 6:18 pm PDT (01:18 UTC): light rime icing, -12 °C, remarks: zse. At the departure end, 21 nm south of the line.
as filed, and in English
YKM UA /OV YKM155020/TM 0118/FL120/TP C337/TA M12/IC LGT RIME/RM ZSE
- Report
- a routine report filed through YKM
- Where
- 20 nm southeast (155°) of YKM
- Time
- 01:18 UTC
- Height
- at 12,000 ft
- Aircraft
- C337
- Temperature
- −12 °C
- Icing
- light rime
- Remarks
- zse
- PC12 at 15,000 ft, 46 nm northwest, 5:42 pm PDT (00:42 UTC): remarks: zse. At the departure end, 46 nm northwest of the line.
as filed, and in English
YKM UA /OV YKM270050/TM 0042/FL150/TP PC12/SK TOP130/RM -ZSE
- Report
- a routine report filed through YKM
- Where
- 50 nm west (270°) of YKM
- Time
- 00:42 UTC
- Height
- at 15,000 ft
- Aircraft
- PC12
- Sky
- TOP130
- Remarks
- zse
- PC12 at 13,000 ft, 46 nm northwest, 5:42 pm PDT (00:42 UTC): remarks: zse. At the departure end, 46 nm northwest of the line.
as filed, and in English
YKM UA /OV YKM270050/TM 0042/FL130/TP PC12/SK TOP130/RM -ZSE
- Report
- a routine report filed through YKM
- Where
- 50 nm west (270°) of YKM
- Time
- 00:42 UTC
- Height
- at 13,000 ft
- Aircraft
- PC12
- Sky
- TOP130
- Remarks
- zse
- PC12 at 13,500 ft, 25 nm southeast, 6:08 pm PDT (01:08 UTC): no turbulence, a trace of icing, overcast from 9,000 ft to 13,500 ft, -10 °C. 59 nm along the route, 25 nm southeast of the line.
as filed, and in English
PSC UA /OV PSC360025/TM 0108/FL135/TP PC12/SK OVC090-TOP135/TA M10/TB NEG /IC TRACE RM 135-090
- Report
- a routine report filed through PSC
- Where
- 25 nm north (360°) of PSC
- Time
- 01:08 UTC
- Height
- at 13,500 ft
- Aircraft
- PC12
- Sky
- overcast from 9,000 ft, tops 13,500 ft
- Temperature
- −10 °C
- Turbulence
- none
- Icing
- trace remarks from 13,500 ft to 9,000 ft
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 2 forecast points nearest it (YKM, 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 |
|---|---|---|---|---|---|---|
| 5,500 ft | 040° at 17 kt | +16 kt | -2 °C | 104 kt | 1 h 20 min | 8:29 pm PDT (03:29 UTC) |
| 7,500 ft | 040° at 20 kt | +19 kt | -5 °C | 101 kt | 1 h 22 min | 8:31 pm PDT (03:31 UTC) |
| 9,500 ft | 040° at 20 kt | +19 kt | -8 °C | 101 kt | 1 h 22 min | 8:31 pm PDT (03:31 UTC) |
| 11,500 ft | 040° at 10 kt | +9 kt | -11 °C | 111 kt | 1 h 15 min | 8:24 pm PDT (03:24 UTC) |
| 13,500 ft | 030° at 9 kt | +8 kt | -15 °C | 112 kt | 1 h 14 min | 8:23 pm PDT (03:23 UTC) |
| 15,500 ft | 040° at 9 kt | +9 kt | -19 °C | 111 kt | 1 h 15 min | 8:24 pm PDT (03:24 UTC) |
| 17,500 ft | 050° at 10 kt | +10 kt | -23 °C | 110 kt | 1 h 15 min | 8:24 pm PDT (03:24 UTC) |
| 18,000 ft FL180 | 050° at 10 kt | +10 kt | -24 °C | 110 kt | 1 h 15 min | 8:24 pm PDT (03:24 UTC) |
| 24,000 ft FL240 | 010° at 15 kt | +10 kt | -30 °C | 110 kt | 1 h 15 min | 8:24 pm PDT (03:24 UTC) |
| 30,000 ft FL300 | 350° at 8 kt | +3 kt | -35 °C | 117 kt | 1 h 11 min | 8:20 pm PDT (03:20 UTC) |
| 34,000 ft FL340 | 300° at 7 kt | −3 kt | -37 °C | 123 kt | 1 h 07 min | 8:16 pm PDT (03:16 UTC) |
| 39,000 ft FL390 | 280° at 10 kt | −7 kt | -41 °C | 127 kt | 1 h 05 min | 8:14 pm PDT (03:14 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| YKM | used from 0 nm out; 25 nm from the line | 030/16 | 020/18 0° | 030/30 -8° | 030/23 -13° | 020/40 -23° | 010/73 -29° | 010/54 -36° | 360/29 -37° | 330/16 -40° |
| GEG | used from 49 nm out; 64 nm from the line | 050/18 -2° | 060/19 -8° | L/V -11° | 160/11 -24° | 190/17 -31° | 200/19 -35° | 220/14 -37° | 250/11 -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 |
|---|---|---|---|---|---|---|---|
| YKM Yakima, WA | departure | no report just now | 1,098 ft | ||||
| MWH Moses Lake, WA | 59 nm out, 11 nm north of the line, tower | no report just now | 1,188 ft | ||||
| GEG Spokane, WA | destination | no report just now | 2,385 ft |
The highest airport on this list sits at 2,385 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, 8:14 pm PDT (03:14 UTC)
GEG has no terminal forecast; use the nearest airport that does.
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 YKM 6:21 pm PDT (01:21 UTC), at GEG 6:08 pm PDT (01:08 UTC) (civil twilight ends 6:38 pm PDT (01:38 UTC)). At 120 knots the arrival at GEG is after sunset there (6:09 pm PDT (01:09 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: Yakima Air Trml/Mcallister Field, Spokane International.