Seattle-Tacoma International to Pocatello Regional SEA → PIH
493 nautical miles (567 statute miles) southeast on a straight line, true course 120°, about 104° magnetic at the departure end (variation 16E). At 120 knots that is 3 h 48 min at the quickest height in today's winds (34,000 ft, a 10-knot tailwind), arriving about 1:25 am MDT (07:25 UTC), after sunset at the destination. Right now SEA is VFR, wind from the north-northeast (030°) at 8 knots; PIH is marginal VFR, wind from the south-southwest (210°) at 11 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
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the first 168 nm of the route.
- AIRMET ZULU 2C: moderate icing up to 20,000 ft. Over the route from 59 to 315 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 296 nm of the route.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 315 to 414 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the last 168 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 375 to 434 nm out.
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 SEA.
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 02:00–09:00 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 5 forecast points nearest it (SEA, YKM, LWS, BOI, 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 |
|---|---|---|---|---|---|---|
| 3,500 ft | 070° at 10 kt | +6 kt | 114 kt | 4 h 19 min | 1:56 am MDT (07:56 UTC) | |
| 5,500 ft | 050° at 6 kt | +2 kt | 2 °C | 118 kt | 4 h 11 min | 1:48 am MDT (07:48 UTC) |
| 7,500 ft | 030° at 7 kt | 0 | -3 °C | 120 kt | 4 h 06 min | 1:43 am MDT (07:43 UTC) |
| 9,500 ft | 010° at 7 kt | −2 kt | -5 °C | 122 kt | 4 h 02 min | 1:39 am MDT (07:39 UTC) |
| 11,500 ft | 030° at 4 kt | 0 | -8 °C | 120 kt | 4 h 06 min | 1:43 am MDT (07:43 UTC) |
| 13,500 ft | light and variable | +2 kt | -11 °C | 118 kt | 4 h 11 min | 1:48 am MDT (07:48 UTC) |
| 15,500 ft | 190° at 6 kt | +3 kt | -14 °C | 117 kt | 4 h 13 min | 1:50 am MDT (07:50 UTC) |
| 17,500 ft | 200° at 12 kt | +4 kt | -18 °C | 116 kt | 4 h 15 min | 1:52 am MDT (07:52 UTC) |
| 18,000 ft FL180 | 200° at 13 kt | +5 kt | -19 °C | 115 kt | 4 h 17 min | 1:54 am MDT (07:54 UTC) |
| 24,000 ft FL240 | 190° at 16 kt | +8 kt | -28 °C | 112 kt | 4 h 24 min | 2:01 am MDT (08:01 UTC) |
| 30,000 ft FL300 | 240° at 19 kt | −7 kt | -34 °C | 127 kt | 3 h 53 min | 1:30 am MDT (07:30 UTC) |
| 34,000 ft FL340 | 240° at 22 kt | −10 kt | -37 °C | 130 kt | 3 h 48 min | 1:25 am MDT (07:25 UTC) |
| 39,000 ft FL390 | 230° at 26 kt | −7 kt | -40 °C | 127 kt | 3 h 53 min | 1:30 am MDT (07:30 UTC) |
Based on data from the 12th at 00:00 UTC; valid on the 12th at 06:00 UTC for use 02:00 to 09:00 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| SEA | used from 0 nm out; 25 nm from the line | 050/7 | 050/11 1° | 050/12 -5° | 030/31 -7° | 010/61 -15° | 010/69 -26° | 360/73 -40° | 360/62 -47° | 330/21 -43° |
| YKM | used from 49 nm out; 18 nm from the line | 070/10 | 040/15 -1° | 020/27 -8° | 030/25 -13° | 020/48 -20° | 010/83 -27° | 010/77 -37° | 010/49 -40° | 350/14 -41° |
| LWS | used from 148 nm out; 76 nm from the line | 070/10 | 080/12 -2° | 030/12 -6° | 080/7 -10° | 170/34 -21° | 160/46 -32° | 200/33 -35° | 220/22 -35° | 230/18 -38° |
| BOI | used from 296 nm out; 64 nm from the line | 300/7 2° | 280/5 -4° | 210/16 -9° | 210/60 -20° | 210/75 -29° | 210/63 -32° | 220/64 -32° | 220/54 -39° | |
| PIH | used from 394 nm out; 74 nm from the line | L/V | 240/13 1° | 240/15 -3° | 210/42 -15° | 200/70 -25° | 220/74 -29° | 220/71 -36° | 220/62 -43° |
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 |
|---|---|---|---|---|---|---|---|
| SEA Seattle, WA | departure | VFR Sky: a few clouds at 3,000 feet | from the north-northeast (030°) at 8 knots | 10+ mi | none | 432 ft | 7:53 pm PDT (02:53 UTC) |
| ESW Easton, WA | 49 nm out, 14 nm north of the line | no report just now | 2,226 ft | ||||
| YKM Yakima, WA | 89 nm out, 9 nm southwest of the line, tower | VFR Sky: overcast at 8,500 feet | calm | 10+ mi | 8,500 ft | 1,098 ft | 02:53 UTC |
| RLD Richland, WA | 138 nm out, 6 nm northeast of the line | VFR Sky: overcast at 10,000 feet | from the north-northwest (330°) at 5 knots | 10+ mi | 10,000 ft | 394 ft | 03:15 UTC |
| PSC Pasco, WA | 148 nm out, 7 nm northeast of the line, tower | VFR Sky: a broken layer at 10,000 feet, overcast at 11,000 feet | from the north-northwest (340°) at 8 knots | 10+ mi | 10,000 ft | 410 ft | 02:53 UTC |
| JSY Joseph, OR | 246 nm out, 5 nm north of the line | VFR | from the south-southwest (210°) at 4 knots | 10+ mi | none | 4,126 ft | 14:30 UTC |
| MYL Mc Call, ID | 296 nm out, 9 nm northeast of the line | VFR Sky: overcast at 3,300 feet | from the west-northwest (290°) at 4 knots | 10+ mi | 3,300 ft | 5,024 ft | 02:51 UTC |
| SUN Hailey, ID | 414 nm out, 16 nm southwest of the line, tower | IFR Sky: a broken layer at 700 feet, a broken layer at 1,100 feet, overcast at 2,200 feet Weather: light rain | from the east-southeast (120°) at 4 knots | 7 mi | 700 ft | 5,319 ft | 03:20 UTC |
| PIH Pocatello, ID | destination | marginal VFR Sky: a few clouds at 800 feet, a broken layer at 1,200 feet, overcast at 2,100 feet | from the south-southwest (210°) at 11 knots | 10+ mi | 1,200 ft | 4,451 ft | 8:53 pm MDT (02:53 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 PIH when you get there the forecast at the estimated arrival, 1:25 am MDT (07:25 UTC)
Wind from the south-southwest at 11 knots, visibility more than 6 miles, showers nearby, a few clouds at 800 feet, a broken layer at 1,200 feet and more above marginal VFR
The whole forecast for PIH
- From Sun 9:00 pm MDT (03:00 UTC): wind from the south-southwest at 11 knots, visibility more than 6 miles, showers nearby, a few clouds at 800 feet, a broken layer at 1,200 feet and more above
- From Mon 3:00 am MDT (09:00 UTC): wind light and variable, visibility 4 miles, light rain, mist, a broken layer at 800 feet, overcast at 1,200 feet
- From Mon 12:00 pm MDT (18:00 UTC): wind light and variable, visibility 6 miles, light rain showers, mist, scattered clouds at 1,500 feet, overcast at 2,500 feet
The forecast for SEA, the departure
- From Sun 8:00 pm PDT (03:00 UTC): wind from the north at 6 knots, visibility more than 6 miles, clear skies
- From Mon 3:00 am PDT (10:00 UTC): wind from the southeast at 4 knots, visibility more than 6 miles, patches of fog, clear skies
- From Mon 9:00 am PDT (16:00 UTC): wind from the south-southeast at 4 knots, visibility more than 6 miles, clear skies
- From Mon 11:00 am PDT (18:00 UTC): wind from the west at 6 knots, visibility more than 6 miles, clear skies
- From Mon 8:00 pm PDT (03:00 UTC): wind from the northwest at 5 knots, visibility more than 6 miles, scattered clouds at 25,000 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 SEA 6:27 pm PDT (01:27 UTC), at PIH 6:52 pm MDT (00:52 UTC) (civil twilight ends 7:21 pm MDT (01:21 UTC)). At 120 knots the arrival at PIH is before sunrise there (7:40 am MDT (13:40 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: Seattle-Tacoma International, Pocatello Regional.