Seattle-Tacoma International to Roswell Air Center Airport SEA → ROW
1,171 nautical miles (1,347 statute miles) southeast on a straight line, true course 130°, about 114° magnetic at the departure end (variation 16E). At 120 knots that is 9 h 09 min at the quickest height in today's winds (39,000 ft, a 8-knot tailwind), arriving about 5:07 am MDT (11:07 UTC), after sunset at the destination. Right now SEA is VFR, wind from the north (360°) at 7 knots; ROW is VFR, wind from the south-southeast (150°) at 7 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 159 nm of the route.
- AIRMET ZULU 2C: moderate icing up to 16,000 ft. Over the route from 109 to 248 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 169 to 794 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 327 to 813 nm out.
- AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the route from 337 to 794 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 585 to 1121 nm out.
- AIRMET SIERRA 2E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 615 to 724 nm out.
- AIRMET TANGO 1W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Over the route from 823 to 823 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 883 to 1032 nm out.
- AIRMET TANGO 2W: moderate turbulence above 18,000 ft from 35,000 ft to 45,000 ft. Over the route from 992 to 1131 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 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 10 forecast points nearest it (SEA, YKM, LWS, BOI, PIH, SLC, GJT, FMN, ABQ, ROW). 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 | 330° at 6 kt | −5 kt | 4 °C | 125 kt | 9 h 22 min | 5:20 am MDT (11:20 UTC) |
| 7,500 ft | 220° at 11 kt | +2 kt | 5 °C | 118 kt | 9 h 55 min | 5:53 am MDT (11:53 UTC) |
| 9,500 ft | 210° at 16 kt | +5 kt | 3 °C | 115 kt | 10 h 11 min | 6:09 am MDT (12:09 UTC) |
| 11,500 ft | 210° at 21 kt | +6 kt | -1 °C | 114 kt | 10 h 16 min | 6:14 am MDT (12:14 UTC) |
| 13,500 ft | 210° at 24 kt | +7 kt | -5 °C | 113 kt | 10 h 22 min | 6:20 am MDT (12:20 UTC) |
| 15,500 ft | 210° at 27 kt | +8 kt | -9 °C | 112 kt | 10 h 27 min | 6:25 am MDT (12:25 UTC) |
| 17,500 ft | 210° at 29 kt | +10 kt | -13 °C | 110 kt | 10 h 39 min | 6:37 am MDT (12:37 UTC) |
| 18,000 ft FL180 | 210° at 30 kt | +10 kt | -14 °C | 110 kt | 10 h 39 min | 6:37 am MDT (12:37 UTC) |
| 24,000 ft FL240 | 220° at 34 kt | +6 kt | -23 °C | 114 kt | 10 h 16 min | 6:14 am MDT (12:14 UTC) |
| 30,000 ft FL300 | 230° at 46 kt | +2 kt | -31 °C | 118 kt | 9 h 55 min | 5:53 am MDT (11:53 UTC) |
| 34,000 ft FL340 | 230° at 52 kt | −4 kt | -36 °C | 124 kt | 9 h 27 min | 5:25 am MDT (11:25 UTC) |
| 39,000 ft FL390 | 240° at 51 kt | −8 kt | -44 °C | 128 kt | 9 h 09 min | 5:07 am MDT (11:07 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| SEA | used from 0 nm out; 25 nm from the line | 360/9 | 350/10 1° | 010/10 -5° | 030/20 -11° | 020/60 -17° | 010/86 -26° | 360/90 -40° | 010/68 -42° | 360/31 -43° |
| YKM | used from 50 nm out; 17 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° |
| LWS | used from 198 nm out; 99 nm from the line | 010/5 | 050/14 -2° | 040/12 -6° | 160/7 -10° | 190/30 -22° | 200/54 -27° | 200/48 -35° | 210/40 -37° | 230/32 -41° |
| BOI | used from 248 nm out; 74 nm from the line | 330/14 4° | 230/5 -2° | 220/20 -7° | 210/37 -20° | 200/59 -26° | 200/67 -34° | 210/73 -35° | 220/62 -41° | |
| PIH | used from 446 nm out; 87 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° | |
| SLC | used from 496 nm out; 79 nm from the line | 280/8 | 210/39 5° | 210/52 -1° | 200/50 -11° | 200/56 -23° | 220/61 -28° | 230/73 -37° | 230/73 -45° | |
| GJT | used from 694 nm out; 93 nm from the line | 210/40 11° | 210/46 3° | 210/61 -10° | 210/68 -22° | 220/57 -29° | 230/59 -36° | 240/66 -46° | ||
| FMN | used from 794 nm out; 78 nm from the line | 220/25 13° | 220/28 4° | 210/51 -9° | 220/59 -21° | 230/78 -30° | 230/77 -36° | 230/66 -46° | ||
| ABQ | used from 942 nm out; 59 nm from the line | 200/28 13° | 210/28 5° | 210/44 -7° | 230/46 -20° | 230/80 -28° | 240/74 -35° | 240/58 -47° | ||
| ROW | used from 1091 nm out; 55 nm from the line | 180/23 | 190/24 15° | 210/27 7° | 230/35 -6° | 240/53 -17° | 240/62 -27° | 250/64 -38° | 260/60 -50° |
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 (360°) at 7 knots | 10+ mi | none | 432 ft | 6:53 pm PDT (01:53 UTC) |
| YKM Yakima, WA | 89 nm out, 7 nm northeast of the line, tower | VFR Sky: overcast at 9,500 feet | from the west-northwest (290°) at 6 knots | 10+ mi | 9,500 ft | 1,098 ft | 01:53 UTC |
| PDT Pendleton, OR | 179 nm out, 16 nm northeast of the line, tower | VFR Sky: overcast at 7,000 feet | calm | 10+ mi | 7,000 ft | 1,494 ft | 01:53 UTC |
| BOI Boise, ID | 347 nm out, 1 nm northwest of the line, tower | VFR Sky: a broken layer at 7,500 feet, overcast at 12,000 feet | from the southeast (130°) at 9 knots | 10+ mi | 7,500 ft | 2,871 ft | 01:53 UTC |
| TWF Twin Falls, ID | 446 nm out, 8 nm northeast of the line, tower | VFR Sky: overcast at 4,000 feet | from the southwest (230°) at 7 knots | 10+ mi | 4,000 ft | 4,153 ft | 01:53 UTC |
| PVU Provo, UT | 635 nm out, 7 nm north of the line, tower | marginal VFR Sky: a broken layer at 1,000 feet, a broken layer at 1,700 feet, overcast at 3,000 feet Weather: rain | from the west (280°) at 10 knots | 8 mi | 1,000 ft | 4,496 ft | 01:56 UTC |
| CNY Moab, UT | 754 nm out, 15 nm northeast of the line | VFR Sky: a broken layer at 12,000 feet | from the south-southwest (210°) at 28 knots, gusting to 38 | 10+ mi | 12,000 ft | 4,579 ft | 01:53 UTC |
| FMN Farmington, NM | 893 nm out, 10 nm southwest of the line, tower | VFR Sky: a broken layer at 9,000 feet | from the south-southwest (210°) at 11 knots | 10+ mi | 9,000 ft | 5,506 ft | 01:53 UTC |
| ABQ Albuquerque, NM | 1022 nm out, 15 nm southwest of the line, tower | VFR Sky: scattered clouds at 10,000 feet, a broken layer at 13,000 feet | from the southeast (140°) at 7 knots | 10+ mi | 13,000 ft | 5,354 ft | 01:52 UTC |
| ROW Roswell, NM | destination | VFR | from the south-southeast (150°) at 7 knots | 10+ mi | none | 3,671 ft | 7:51 pm MDT (01:51 UTC) |
The highest airport on this list sits at 5,506 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At ROW when you get there the forecast at the estimated arrival, 5:07 am MDT (11:07 UTC)
Wind from the south at 6 knots, visibility more than 6 miles, scattered clouds at 20,000 feet VFR
The whole forecast for ROW
- From Sun 7:00 pm MDT (01:00 UTC): wind from the south at 11 knots, visibility more than 6 miles, scattered clouds at 9,000 feet, a broken layer at 15,000 feet
- 30% chance between Sun 9:00 pm MDT (03:00 UTC) and 12:00 am MDT (06:00 UTC): wind variable at 15 knots, gusting to 25, visibility 6 miles, light thunderstorms with rain, a broken layer at 9,000 feet (thunderheads)
- From Mon 3:00 am MDT (09:00 UTC): wind from the south at 6 knots, visibility more than 6 miles, scattered clouds at 20,000 feet
- From Mon 2:00 pm MDT (20:00 UTC): wind from the south at 13 knots, gusting to 21, visibility more than 6 miles, scattered clouds at 8,000 feet
The forecast for SEA, the departure
- From Sun 5:00 pm PDT (00:00 UTC): wind from the north at 12 knots, gusting to 20, visibility more than 6 miles, a few clouds at 2,000 feet, a few clouds at 5,000 feet
- From Sun 8:00 pm PDT (03:00 UTC): wind from the northeast 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
- 6/8722 ALAMOGORDO, NM, Tuesday, October 13, 2026 Local 12 nm from the route, 1111 nm along the route · security · starts tomorrow · ZAB
Daylight
Sunset at SEA 6:27 pm PDT (01:27 UTC), at ROW 6:28 pm MDT (00:28 UTC) (civil twilight ends 6:53 pm MDT (00:53 UTC)). At 120 knots the arrival at ROW is before sunrise there (7:00 am MDT (13:00 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, Roswell Air Center Airport.