Northeast Kingdom International to North Platte Rgnl/Lee Bird Field EFK → LBF
1,263 nautical miles (1,453 statute miles) west on a straight line, true course 270°, about 287° magnetic at the departure end (variation 17W). At 120 knots that is 12 h 53 min at the quickest height in today's winds (4,500 ft, a 22-knot headwind), arriving about 10:55 pm CDT (03:55 UTC), after sunset at the destination. Right now EFK is marginal VFR, wind from the east-southeast (120°) at 3 knots; LBF is low IFR, wind from the north-northwest (330°) at 6 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 SIERRA 1E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, mist). Over the first 119 nm of the route.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 24,000 ft to 40,000 ft. Over the first 20 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the first 109 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 last 109 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 EFK.
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 14:00–21:00 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 11 forecast points nearest it (BML, SYR, BUF, TVC, MKG, GRB, LSE, MCW, OMA, ONL, GRI). 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 | 260° at 21 kt | +22 kt | 18 °C | 98 kt | 12 h 53 min | 10:55 pm CDT (03:55 UTC) |
| 6,500 ft | 260° at 25 kt | +26 kt | 15 °C | 94 kt | 13 h 26 min | 11:28 pm CDT (04:28 UTC) |
| 8,500 ft | 260° at 28 kt | +29 kt | 11 °C | 91 kt | 13 h 53 min | 11:55 pm CDT (04:55 UTC) |
| 10,500 ft | 270° at 28 kt | +29 kt | 7 °C | 91 kt | 13 h 53 min | 11:55 pm CDT (04:55 UTC) |
| 12,500 ft | 270° at 28 kt | +29 kt | 3 °C | 91 kt | 13 h 53 min | 11:55 pm CDT (04:55 UTC) |
| 14,500 ft | 270° at 29 kt | +30 kt | -1 °C | 90 kt | 14 h 02 min | 12:04 am CDT (05:04 UTC) |
| 16,500 ft | 270° at 30 kt | +31 kt | -6 °C | 89 kt | 14 h 11 min | 12:13 am CDT (05:13 UTC) |
| 18,000 ft FL180 | 270° at 31 kt | +32 kt | -9 °C | 88 kt | 14 h 21 min | 12:23 am CDT (05:23 UTC) |
| 24,000 ft FL240 | 270° at 39 kt | +39 kt | -21 °C | 81 kt | 15 h 36 min | 1:38 am CDT (06:38 UTC) |
| 30,000 ft FL300 | 270° at 49 kt | +49 kt | -35 °C | 71 kt | 17 h 47 min | 3:49 am CDT (08:49 UTC) |
| 34,000 ft FL340 | 280° at 56 kt | +53 kt | -41 °C | 67 kt | 18 h 51 min | 4:53 am CDT (09:53 UTC) |
| 39,000 ft FL390 | 290° at 58 kt | +52 kt | -49 °C | 68 kt | 18 h 34 min | 4:36 am CDT (09:36 UTC) |
Based on data from the 12th at 12:00 UTC; valid on the 12th at 18:00 UTC for use 14:00 to 21:00 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| BML | used from 0 nm out; 72 nm from the line | 300/21 | 300/33 10° | 300/37 6° | 300/38 1° | 300/42 -11° | 300/53 -22° | 310/58 -39° | 310/72 -48° | 320/56 -57° |
| SYR | used from 99 nm out; 112 nm from the line | 290/24 | 310/27 13° | 310/34 8° | 320/32 2° | 300/32 -10° | 300/40 -21° | 300/45 -37° | 310/58 -47° | 310/64 -54° |
| BUF | used from 249 nm out; 105 nm from the line | 270/25 | 300/28 14° | 300/29 8° | 310/29 2° | 300/30 -9° | 290/33 -21° | 290/44 -37° | 290/56 -47° | 300/62 -51° |
| TVC | used from 398 nm out; 150 nm from the line | 260/18 | 250/30 15° | 260/34 8° | 280/29 5° | 280/36 -10° | 280/37 -22° | 270/50 -37° | 290/46 -42° | 300/60 -49° |
| MKG | used from 597 nm out; 49 nm from the line | 240/27 | 240/26 15° | 270/27 9° | 280/27 5° | 280/28 -9° | 280/32 -22° | 270/41 -38° | 290/44 -41° | 300/60 -48° |
| GRB | used from 646 nm out; 45 nm from the line | 260/10 | 240/27 16° | 260/31 10° | 270/25 5° | 280/31 -10° | 280/35 -22° | 270/46 -37° | 290/43 -40° | 300/64 -48° |
| LSE | used from 746 nm out; 59 nm from the line | 240/16 | 230/27 20° | 250/35 12° | 260/28 5° | 260/30 -9° | 260/37 -21° | 260/38 -36° | 280/44 -37° | 280/52 -47° |
| MCW | used from 845 nm out; 48 nm from the line | 220/19 | 210/29 20° | 230/35 13° | 250/35 5° | 250/33 -9° | 260/44 -21° | 260/46 -33° | 270/58 -37° | 270/59 -46° |
| OMA | used from 994 nm out; 67 nm from the line | 210/23 | 240/34 20° | 230/40 14° | 220/43 7° | 240/38 -8° | 250/47 -21° | 270/70 -29° | 270/79 -36° | 270/68 -48° |
| ONL | used from 1094 nm out; 58 nm from the line | 270/16 17° | 250/25 13° | 230/34 7° | 230/46 -9° | 240/57 -22° | 250/72 -31° | 250/87 -36° | 250/75 -46° | |
| GRI | used from 1144 nm out; 44 nm from the line | 270/26 19° | 230/33 13° | 230/39 8° | 230/43 -9° | 240/55 -21° | 250/76 -28° | 260/84 -36° | 260/68 -47° |
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 |
|---|---|---|---|---|---|---|---|
| EFK Newport, VT | departure | marginal VFR Sky: overcast at 1,500 feet | from the east-southeast (120°) at 3 knots | 10+ mi | 1,500 ft | 933 ft | 10:35 am EDT (14:35 UTC) |
| BTV Burlington, VT | 40 nm out, 25 nm south of the line, tower | marginal VFR Sky: scattered clouds at 400 feet, overcast at 2,200 feet | calm | 10+ mi | 2,200 ft | 334 ft | 14:54 UTC |
| CYSH Smiths Falls-Montague, | 159 nm out, 8 nm north of the line | no report just now | 416 ft | ||||
| CYOS Owen Sound, | 368 nm out, 3 nm north of the line | no report just now | 1,007 ft | ||||
| OSC Oscoda, MI | 477 nm out, 8 nm north of the line | VFR | from the southwest (230°) at 9 knots | 10+ mi | none | 633 ft | 14:55 UTC |
| LDM Ludington, MI | 607 nm out, 3 nm west of the line | VFR | from the south (190°) at 8 knots | 10+ mi | none | 646 ft | 14:55 UTC |
| OSH Oshkosh, WI | 696 nm out, 19 nm northwest of the line, tower | VFR | from the south-southwest (200°) at 11 knots, gusting to 15 | 10+ mi | none | 808 ft | 14:53 UTC |
| DEH Decorah, IA | 845 nm out, 8 nm north of the line | VFR | variable at 5 knots, gusting to 13 | 10+ mi | none | 1,157 ft | 14:55 UTC |
| EAG Eagle Grove, IA | 945 nm out, 2 nm southwest of the line | no report just now | 1,132 ft | ||||
| SUX Sioux City, IA | 1054 nm out, 12 nm northwest of the line, tower | VFR | from the southeast (140°) at 8 knots | 10+ mi | none | 1,098 ft | 14:52 UTC |
| BBW Broken Bow, NE | 1213 nm out, 2 nm north of the line | low IFR Sky: overcast at 200 feet Weather: mist | from the northwest (320°) at 11 knots | 4 mi | 200 ft | 2,546 ft | 14:53 UTC |
| LBF North Platte, NE | destination | low IFR Sky: overcast at 300 feet | from the north-northwest (330°) at 6 knots | 10+ mi | 300 ft | 2,777 ft | 9:53 am CDT (14:53 UTC) |
The highest airport on this list sits at 2,777 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At LBF when you get there the forecast at the estimated arrival, 10:55 pm CDT (03:55 UTC)
Wind from the northeast at 14 knots, gusting to 24, visibility more than 6 miles, a few clouds at 25,000 feet VFR
The whole forecast for LBF
- From Mon 9:00 am CDT (14:00 UTC): wind from the west-northwest at 6 knots, visibility more than 6 miles, a broken layer at 400 feet
- From Mon 12:00 pm CDT (17:00 UTC): wind from the west-northwest at 7 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
- From Mon 9:00 pm CDT (02:00 UTC): wind from the northeast at 14 knots, gusting to 24, visibility more than 6 miles, a few clouds at 25,000 feet
- From Tue 4:00 am CDT (09:00 UTC): wind from the east-northeast at 12 knots, visibility more than 6 miles, overcast at 25,000 feet
The forecast for EFK, the departure
- From Mon 8:00 am EDT (12:00 UTC): wind calm, visibility more than 6 miles, a broken layer at 1,200 feet
- From Mon 12:00 pm EDT (16:00 UTC): wind light and variable, visibility more than 6 miles, a broken layer at 2,700 feet
- From Mon 2:00 pm EDT (18:00 UTC): wind from the northwest at 7 knots, visibility more than 6 miles, a broken layer at 1,800 feet
- 30% chance between Mon 3:00 pm EDT (19:00 UTC) and 8:00 pm EDT (00:00 UTC): visibility 3 miles, light rain showers, mist
- From Mon 8:00 pm EDT (00:00 UTC): wind from the north at 5 knots, visibility 6 miles, mist, overcast at 900 feet
- From Tue 2:00 am EDT (06:00 UTC): wind calm, visibility 4 miles, light rain showers, mist, overcast at 1,500 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 EFK 6:09 pm EDT (22:09 UTC), at LBF 7:05 pm CDT (00:05 UTC) (civil twilight ends 7:33 pm CDT (00:33 UTC)). At 120 knots the arrival at LBF is after sunset there (7:06 pm CDT (00:06 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: Northeast Kingdom International, North Platte Rgnl/Lee Bird Field.