Seattle-Tacoma International to Eppley Airfield SEA → OMA
1,186 nautical miles (1,364 statute miles) east on a straight line, true course 098°, about 082° magnetic at the departure end (variation 16E). At 120 knots that is 8 h 14 min at the quickest height in today's winds (39,000 ft, a 24-knot tailwind), arriving about 11:57 am CDT (16:57 UTC). Right now SEA is VFR, wind from the west (270°) at 3 knots; OMA is VFR, wind from the southeast (140°) at 9 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: 1,023 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 route from 30 to 418 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 159 to 448 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 229 to 648 nm out.
- 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 349 to 1026 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 538 to 717 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 667 to 777 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 677 to 817 nm out.
- AIRMET TANGO 3W: 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 last 179 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 SEA.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- E73L descending, 3 nm northeast, 11:20 pm PDT (06:20 UTC): remarks: breaking action good broke out about 600FT above ground. 468 nm along the route, 3 nm northeast of the line.
as filed, and in English
BZN UA /OV BZN/TM 0620/FLDURD/TP E73L/RM BREAKING ACTION GOOD. BROKE OUT ABOUT 600FT AGL
- Report
- a routine report filed through BZN
- Where
- over BZN
- Time
- 06:20 UTC
- Height
- during the descent
- Aircraft
- E73L
- Remarks
- breaking action good broke out about 600FT above ground
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 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, GEG, LWS, DLN, BIL, RAP, PIR, ONL, OMA). 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 | 260° at 15 kt | −12 kt | 16 °C | 132 kt | 8 h 59 min | 12:42 pm CDT (17:42 UTC) |
| 7,500 ft | 250° at 13 kt | −10 kt | 6 °C | 130 kt | 9 h 07 min | 12:50 pm CDT (17:50 UTC) |
| 9,500 ft | 250° at 12 kt | −9 kt | 2 °C | 129 kt | 9 h 12 min | 12:55 pm CDT (17:55 UTC) |
| 11,500 ft | 240° at 13 kt | −8 kt | -1 °C | 128 kt | 9 h 16 min | 12:59 pm CDT (17:59 UTC) |
| 13,500 ft | 240° at 13 kt | −6 kt | -5 °C | 126 kt | 9 h 25 min | 1:08 pm CDT (18:08 UTC) |
| 15,500 ft | 230° at 12 kt | −4 kt | -9 °C | 124 kt | 9 h 34 min | 1:17 pm CDT (18:17 UTC) |
| 17,500 ft | 220° at 12 kt | −2 kt | -13 °C | 122 kt | 9 h 43 min | 1:26 pm CDT (18:26 UTC) |
| 18,000 ft FL180 | 220° at 12 kt | −2 kt | -14 °C | 122 kt | 9 h 43 min | 1:26 pm CDT (18:26 UTC) |
| 24,000 ft FL240 | 220° at 24 kt | −5 kt | -25 °C | 125 kt | 9 h 29 min | 1:12 pm CDT (18:12 UTC) |
| 30,000 ft FL300 | 240° at 28 kt | −17 kt | -34 °C | 137 kt | 8 h 39 min | 12:22 pm CDT (17:22 UTC) |
| 34,000 ft FL340 | 240° at 35 kt | −20 kt | -38 °C | 140 kt | 8 h 28 min | 12:11 pm CDT (17:11 UTC) |
| 39,000 ft FL390 | 230° at 42 kt | −24 kt | -44 °C | 144 kt | 8 h 14 min | 11:57 am CDT (16:57 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| SEA | used from 0 nm out; 25 nm from the line | 350/5 | 010/6 0° | 010/9 -4° | 010/27 -6° | 010/51 -15° | 360/58 -26° | 360/60 -41° | 350/55 -48° | 340/30 -45° |
| YKM | used from 50 nm out; 41 nm from the line | 360/6 | 360/11 -1° | 030/20 -7° | 040/21 -11° | 020/55 -18° | 010/84 -26° | 010/79 -40° | 010/45 -42° | 350/23 -42° |
| GEG | used from 149 nm out; 46 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° | |
| LWS | used from 199 nm out; 24 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° |
| DLN | used from 349 nm out; 66 nm from the line | 190/10 -4° | 220/23 -4° | 210/21 -18° | 210/43 -28° | 210/60 -33° | 210/72 -37° | 210/67 -44° | ||
| BIL | used from 498 nm out; 63 nm from the line | 300/14 | 270/19 -2° | 260/26 -2° | 220/28 -13° | 210/51 -25° | 220/56 -33° | 220/61 -39° | 220/72 -45° | |
| RAP | used from 697 nm out; 109 nm from the line | 250/28 16° | 260/31 10° | 240/25 4° | 210/35 -10° | 200/45 -23° | 230/47 -31° | 230/47 -36° | 230/51 -46° | |
| PIR | used from 897 nm out; 84 nm from the line | 230/15 15° | 220/22 14° | 220/24 6° | 200/32 -10° | 210/48 -22° | 240/45 -33° | 240/43 -37° | 250/55 -46° | |
| ONL | used from 946 nm out; 72 nm from the line | 250/31 22° | 230/27 16° | 220/25 8° | 230/25 -9° | 220/29 -22° | 250/42 -33° | 250/48 -36° | 250/52 -46° | |
| OMA | used from 1096 nm out; 65 nm from the line | 230/47 | 240/33 21° | 230/22 13° | 220/27 5° | 240/35 -8° | 250/43 -21° | 260/47 -33° | 260/59 -36° | 270/58 -46° |
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 | from the west (270°) at 3 knots | 10+ mi | none | 432 ft | 12:53 am PDT (07:53 UTC) |
| ESW Easton, WA | 50 nm out, 5 nm southwest of the line | no report just now | 2,226 ft | ||||
| MWH Moses Lake, WA | 120 nm out, 6 nm northeast of the line, tower | VFR | from the north (350°) at 6 knots | 10+ mi | none | 1,188 ft | 07:52 UTC |
| HRF Hamilton, MT | 339 nm out, 6 nm southeast of the line | VFR Sky: a few clouds at 3,800 feet, a few clouds at 4,400 feet, overcast at 4,900 feet | from the north-northwest (340°) at 3 knots | 10+ mi | 4,900 ft | 3,635 ft | 08:35 UTC |
| BZN Bozeman, MT | 468 nm out, 3 nm east of the line, tower | low IFR Sky: a broken layer at 300 feet, a broken layer at 3,800 feet, overcast at 5,500 feet | from the south-southwest (200°) at 3 knots | 10+ mi | 300 ft | 4,473 ft | 08:38 UTC |
| LVM Livingston, MT | 498 nm out, 6 nm northeast of the line | VFR Sky: scattered clouds at 800 feet, scattered clouds at 2,100 feet, overcast at 6,000 feet Weather: light snow | from the north (350°) at 6 knots | 7 mi | 6,000 ft | 4,659 ft | 08:35 UTC |
| SHR Sheridan, WY | 658 nm out, 2 nm southwest of the line | marginal VFR Sky: a few clouds at 700 feet, overcast at 1,700 feet | from the northwest (310°) at 16 knots, gusting to 24 | 9 mi | 1,700 ft | 4,021 ft | 07:53 UTC |
| RAP Rapid City, SD | 827 nm out, 18 nm northeast of the line, tower | low IFR Sky: sky obscured at 200 feet Weather: light rain, fog | from the east-southeast (120°) at 10 knots | 0.5 mi | 200 ft | 3,203 ft | 08:34 UTC |
| SUO Rosebud, SD | 936 nm out, 11 nm north of the line | reported, no category | from the northeast (040°) at 7 knots | 1.25 mi | none | 2,724 ft | 08:35 UTC |
| RBE Bassett, NE | 1006 nm out, 3 nm southwest of the line | no report just now | 2,349 ft | ||||
| SCB Scribner, NE | 1146 nm out, 3 nm east of the line | no report just now | 1,324 ft | ||||
| OMA Omaha, NE | destination | VFR Sky: a few clouds at 25,000 feet | from the southeast (140°) at 9 knots | 10+ mi | none | 984 ft | 2:52 am CDT (07:52 UTC) |
The highest airport on this list sits at 4,659 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At OMA when you get there the forecast at the estimated arrival, 11:57 am CDT (16:57 UTC)
Wind from the south-southwest at 15 knots, gusting to 23, visibility more than 6 miles, a few clouds at 25,000 feet VFR
The whole forecast for OMA
- From Mon 1:00 am CDT (06:00 UTC): wind from the south at 11 knots, visibility more than 6 miles, low-level wind shear, a few clouds at 25,000 feet
- From Mon 10:00 am CDT (15:00 UTC): wind from the south-southwest at 15 knots, gusting to 23, visibility more than 6 miles, a few clouds at 25,000 feet
- From Mon 5:00 pm CDT (22:00 UTC): wind from the west-southwest at 10 knots, visibility more than 6 miles, clear skies
- From Mon 8:00 pm CDT (01:00 UTC): wind from the north-northwest at 11 knots, visibility more than 6 miles, clear skies
The forecast for SEA, the departure
- From Sun 11:00 pm PDT (06:00 UTC): wind from the east-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 south at 4 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 6:25 pm PDT (01:25 UTC), at OMA 6:47 pm CDT (23:47 UTC) (civil twilight ends 7:15 pm CDT (00:15 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, Eppley Airfield.