Miami-Opa Locka Executive to Boeing Fld/King County International OPF → BFI
2,362 nautical miles (2,718 statute miles) northwest on a straight line, true course 315°, about 321° magnetic at the departure end (variation 6W). At 120 knots that is 21 h 05 min at the quickest height in today's winds (10,500 ft, a 8-knot headwind), arriving about 2:22 am PDT (09:22 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: 2 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 2W: moderate turbulence above 18,000 ft from 30,000 ft to 41,000 ft. Over the route from 229 to 289 nm out.
- AIRMET SIERRA 1E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, mist, fog). Over the route from 458 to 668 nm out.
- AIRMET TANGO 2W: 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 917 to 1315 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 1475 to 1654 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Over the route from 1485 to 1654 nm out.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Over the route from 1545 to 1634 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1614 to 2182 nm out.
- AIRMET TANGO 5W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Near the route, 1644 nm along the route.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 1684 to 1933 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 1804 to 2113 nm out.
- AIRMET ZULU 2C: moderate icing up to 18,000 ft. Over the route from 1943 to 2192 nm out.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the route from 2033 to 2332 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 OPF.
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 18 forecast points nearest it (MIA, PIE, TLH, MGM, JAN, MEM, LIT, FSM, TUL, ICT, SLN, GLD, BFF, LND, DLN, LWS, YKM, SEA). 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 | 270° at 16 kt | +13 kt | 107 kt | 22 h 04 min | 3:21 am PDT (10:21 UTC) | |
| 6,500 ft | 280° at 15 kt | +13 kt | 13 °C | 107 kt | 22 h 04 min | 3:21 am PDT (10:21 UTC) |
| 8,500 ft | 270° at 11 kt | +9 kt | 7 °C | 111 kt | 21 h 17 min | 2:34 am PDT (09:34 UTC) |
| 10,500 ft | 260° at 12 kt | +8 kt | 5 °C | 112 kt | 21 h 05 min | 2:22 am PDT (09:22 UTC) |
| 12,500 ft | 250° at 14 kt | +8 kt | 2 °C | 112 kt | 21 h 05 min | 2:22 am PDT (09:22 UTC) |
| 14,500 ft | 250° at 14 kt | +8 kt | -3 °C | 112 kt | 21 h 05 min | 2:22 am PDT (09:22 UTC) |
| 16,500 ft | 250° at 15 kt | +8 kt | -7 °C | 112 kt | 21 h 05 min | 2:22 am PDT (09:22 UTC) |
| 18,000 ft FL180 | 250° at 15 kt | +8 kt | -10 °C | 112 kt | 21 h 05 min | 2:22 am PDT (09:22 UTC) |
| 24,000 ft FL240 | 250° at 22 kt | +13 kt | -21 °C | 107 kt | 22 h 04 min | 3:21 am PDT (10:21 UTC) |
| 30,000 ft FL300 | 270° at 32 kt | +26 kt | -32 °C | 94 kt | 25 h 08 min | 6:25 am PDT (13:25 UTC) |
| 34,000 ft FL340 | 270° at 33 kt | +28 kt | -39 °C | 92 kt | 25 h 40 min | 6:57 am PDT (13:57 UTC) |
| 39,000 ft FL390 | 260° at 31 kt | +25 kt | -48 °C | 95 kt | 24 h 52 min | 6:09 am PDT (13:09 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| MIA | used from 0 nm out; 30 nm from the line | L/V | L/V 17° | L/V 13° | L/V 8° | 270/6 -6° | 250/9 -17° | 290/17 -32° | 280/25 -41° | 280/21 -52° |
| PIE | used from 100 nm out; 52 nm from the line | 360/10 | 340/12 18° | 330/9 13° | 290/12 8° | 260/21 -7° | 280/18 -18° | 250/20 -33° | 250/26 -41° | 250/20 -51° |
| TLH | used from 249 nm out; 82 nm from the line | 340/23 | 350/26 17° | 350/21 11° | 300/13 6° | 320/25 -6° | 340/35 -16° | 350/44 -32° | 360/51 -42° | 350/33 -52° |
| MGM | used from 448 nm out; 65 nm from the line | 320/19 | 330/16 17° | 340/21 11° | 330/11 5° | 330/27 -6° | 330/21 -17° | 330/37 -32° | 340/44 -40° | 360/30 -52° |
| JAN | used from 548 nm out; 89 nm from the line | 240/10 | 260/15 18° | 280/10 11° | 290/6 6° | 290/15 -5° | 300/15 -17° | 320/35 -30° | 330/38 -40° | 330/39 -51° |
| MEM | used from 698 nm out; 71 nm from the line | 250/19 | 260/19 17° | 270/20 12° | 270/16 6° | 270/21 -6° | 290/27 -17° | 300/37 -30° | 300/49 -40° | 310/40 -51° |
| LIT | used from 747 nm out; 44 nm from the line | 250/22 | 250/25 18° | 240/23 12° | 240/20 7° | 250/17 -6° | 260/25 -17° | 300/45 -29° | 300/49 -40° | 310/43 -51° |
| FSM | used from 897 nm out; 51 nm from the line | 230/33 | 260/23 15° | 240/23 11° | 230/18 8° | 230/20 -8° | 250/31 -17° | 280/51 -30° | 280/52 -39° | 300/47 -51° |
| TUL | used from 947 nm out; 65 nm from the line | 230/42 | 250/23 17° | 220/16 14° | 240/10 8° | 240/20 -6° | 260/28 -17° | 270/61 -29° | 280/52 -38° | 290/46 -50° |
| ICT | used from 1046 nm out; 56 nm from the line | 230/45 | 240/33 21° | 230/23 14° | 230/22 7° | 240/29 -7° | 240/36 -20° | 260/78 -29° | 270/69 -36° | 270/56 -49° |
| SLN | used from 1146 nm out; 24 nm from the line | 230/49 | 240/41 22° | 230/26 15° | 220/21 7° | 240/38 -8° | 240/44 -21° | 260/77 -29° | 270/70 -36° | 270/63 -48° |
| GLD | used from 1246 nm out; 91 nm from the line | 260/37 | 260/25 14° | 250/27 8° | 230/36 -8° | 230/49 -21° | 250/71 -30° | 260/82 -36° | 250/73 -48° | |
| BFF | used from 1395 nm out; 83 nm from the line | 280/28 | 260/39 11° | 240/34 5° | 210/38 -11° | 210/52 -22° | 230/61 -31° | 230/61 -36° | 240/56 -45° | |
| LND | used from 1594 nm out; 109 nm from the line | 240/10 3° | 240/30 0° | 220/42 -13° | 230/52 -23° | 220/54 -33° | 220/52 -36° | 220/53 -44° | ||
| DLN | used from 1843 nm out; 72 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° | ||
| LWS | used from 2043 nm out; 67 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° |
| YKM | used from 2192 nm out; 66 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° |
| SEA | used from 2292 nm out; 44 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° |
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 |
|---|---|---|---|---|---|---|---|
| OPF Miami, FL | departure | no report just now | 8 ft | ||||
| PIE St Petersburg-Clearwater, FL | 179 nm out, 4 nm south of the line, tower | no report just now | 10 ft | ||||
| ECP Panama City, FL | 399 nm out, 6 nm south of the line, tower | no report just now | 68 ft | ||||
| GWO Greenwood, MS | 688 nm out, 7 nm south of the line, tower | no report just now | 162 ft | ||||
| ASG Springdale, AR | 937 nm out, 5 nm west of the line, tower | no report just now | 1,352 ft | ||||
| XNA Fayetteville/Springdale/Rogers, AR | 947 nm out, 6 nm west of the line, tower | no report just now | 1,288 ft | ||||
| OIN Oberlin, KS | 1315 nm out, 1 nm southeast of the line | no report just now | 2,706 ft | ||||
| CPR Casper, WY | 1634 nm out, 19 nm north of the line, tower | no report just now | 5,344 ft | ||||
| DUB Dubois, WY | 1784 nm out, 15 nm south of the line | no report just now | 7,298 ft | ||||
| GIC Grangeville, ID | 2093 nm out, 2 nm southeast of the line | no report just now | 3,313 ft | ||||
| LWS Lewiston, ID | 2132 nm out, 10 nm north of the line, tower | no report just now | 1,442 ft | ||||
| BFI Seattle, WA | destination | no report just now | 21 ft |
The highest airport on this list sits at 7,298 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At BFI when you get there the forecast at the estimated arrival, 2:22 am PDT (09:22 UTC)
BFI 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 OPF 6:56 pm EDT (22:56 UTC), at BFI 6:25 pm PDT (01:25 UTC) (civil twilight ends 6:56 pm PDT (01:56 UTC)). At 120 knots the arrival at BFI is before sunrise there (7:24 am PDT (14:24 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: Miami-Opa Locka Executive, Boeing Fld/King County International.