Plan a flight · Sun 6:30 pm CDT (23:30 UTC)

North Platte Rgnl/Lee Bird Field to Northeast Kingdom International LBF → EFK

1,263 nautical miles (1,453 statute miles) east on a straight line, true course 070°, about 064° magnetic at the departure end (variation 6E). At 120 knots that is 7 h 06 min at the quickest height in today's winds (39,000 ft, a 58-knot tailwind), arriving about 2:36 am EDT (06:36 UTC), after sunset at the destination. Right now LBF is VFR, wind from the east-southeast (110°) at 7 knots; EFK is VFR, wind from the south-southeast (160°) at 8 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 ZULU 1C: moderate icing up to 24,000 ft. Over the last 129 nm of the route.
AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the last 129 nm of the route.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the last 119 nm of the route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Near the route, 1183 nm along 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 LBF.

Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first

C182 at 4,500 ft, 5 nm northwest, 4:02 pm CDT (21:02 UTC): moderate turbulence. 209 nm along the route, 5 nm northwest of the line.
as filed, and in English
```
SUX UA /OV SUX170003/TM 2102/FL045/TP C182/TB CONS MOD
```
Report
a routine report filed through SUX
Where
3 nm south (170°) of SUX
Time
21:02 UTC
Height
at 4,500 ft
Aircraft
C182
Turbulence
continuous moderate
B763 at 30,000 ft, 38 nm south, 4:39 pm CDT (21:39 UTC): moderate turbulence. At the destination end, 38 nm south of the line.
as filed, and in English
```
MPV UA /OV MPV330015/TM 2139/FL300/TP B763/TB MOD
```
Report
a routine report filed through MPV
Where
15 nm northwest (330°) of MPV
Time
21:39 UTC
Height
at 30,000 ft
Aircraft
B763
Turbulence
moderate
A321 at 32,000 ft, 5 nm southwest, 4:58 pm CDT (21:58 UTC): light chop turbulence, remarks: zdvwc. At the departure end, 5 nm southwest of the line.
as filed, and in English
```
LBF UA /OV LBF/TM 2158/FL320/TP A321/TB OCNL LGT CHOP/RM ZDVWC
```
Report
a routine report filed through LBF
Where
over LBF
Time
21:58 UTC
Height
at 32,000 ft
Aircraft
A321
Turbulence
occasional light chop
Remarks
zdvwc
B739 at 30,000 ft, 12 nm southeast, 4:38 pm CDT (21:38 UTC): light turbulence. 278 nm along the route, 12 nm southeast of the line.
as filed, and in English
```
FOD UA /OV FOD220020/TM 2138/FL300/TP B739/TB CONS LGT/ OCNL MOD
```
Report
a routine report filed through FOD
Where
20 nm southwest (220°) of FOD
Time
21:38 UTC
Height
at 30,000 ft
Aircraft
B739
Turbulence
continuous light occasional moderate
A21N at 31,000 ft, 22 nm south, 4:07 pm CDT (21:07 UTC): light turbulence. 338 nm along the route, 22 nm south of the line.
as filed, and in English
```
IFA UA /OV IFA/TM 2107/FL310/TP A21N/TB CONS LGT/ INTMT MOD
```
Report
a routine report filed through IFA
Where
over IFA
Time
21:07 UTC
Height
at 31,000 ft
Aircraft
A21N
Turbulence
continuous light intermittent moderate
A21N at 34,000 ft, 46 nm south, 5:01 pm CDT (22:01 UTC): light chop turbulence. 378 nm along the route, 46 nm south of the line.
as filed, and in English
```
ALO UA /OV ALO180020/TM 2201/FL340/TP A21N/TB CONS LGT CHOP
```
Report
a routine report filed through ALO
Where
20 nm south (180°) of ALO
Time
22:01 UTC
Height
at 34,000 ft
Aircraft
A21N
Turbulence
continuous light chop
B737 at 32,000 ft, 28 nm south, 5:42 pm CDT (22:42 UTC): light clear-air turbulence. 537 nm along the route, 28 nm south of the line.
as filed, and in English
```
UES UA /OV BAE270030/TM 2242/FL320/TP B737/TB OCNL LGT CAT
```
Report
a routine report filed through UES
Where
30 nm west (270°) of BAE
Time
22:42 UTC
Height
at 32,000 ft
Aircraft
B737
Turbulence
occasional light clear-air turbulence
B738 at 36,000 ft, 35 nm south, 5:11 pm CDT (22:11 UTC): no turbulence. 567 nm along the route, 35 nm south of the line.
as filed, and in English
```
UES UA /OV BAE/TM 2211/FL360/TP B738/TB NEG
```
Report
a routine report filed through UES
Where
over BAE
Time
22:11 UTC
Height
at 36,000 ft
Aircraft
B738
Turbulence
none
PA24 at 1,900 ft, 49 nm south, 3:55 pm CDT (20:55 UTC): overcast from 1,900 ft to 2,900 ft. 756 nm along the route, 49 nm south of the line.
as filed, and in English
```
MBS UA /OV HYX/TM 2055/FL019/TP PA24/SK OVC019 TOPS029
```
Report
a routine report filed through MBS
Where
over HYX
Time
20:55 UTC
Height
at 1,900 ft
Aircraft
PA24
Sky
overcast from 1,900 ft, tops 2,900 ft
PA24 at 3,000 ft, 34 nm south, 3:48 pm CDT (20:48 UTC): overcast up to 3,000 ft, remarks: zob. 795 nm along the route, 34 nm south of the line.
as filed, and in English
```
BAX UA /OV BAX/TM 2048/FL030/TP PA24/SK OVCUNKN-TOP030/RM ZOB
```
Report
a routine report filed through BAX
Where
over BAX
Time
20:48 UTC
Height
at 3,000 ft
Aircraft
PA24
Sky
overcast, tops 3,000 ft
Remarks
zob
PC12 at 6,000 ft, 11 nm south, 3:55 pm CDT (20:55 UTC): a routine report with nothing remarked on. 1144 nm along the route, 11 nm south of the line.
as filed, and in English
```
PTD UA /OV KPTD/TM 2055/FL060/TP PC12/SK TOP 068
```
Report
a routine report filed through PTD
Where
over KPTD
Time
20:55 UTC
Height
at 6,000 ft
Aircraft
PC12
Sky
top 6,800 ft
B767 at 36,000 ft, 28 nm south, 6:26 pm CDT (23:26 UTC): light to moderate turbulence. At the destination end, 28 nm south of the line.
as filed, and in English
```
BTV UA /OV BTV100020/TM 2326/FL360/TP B767/TB LGT OCNL MOD
```
Report
a routine report filed through BTV
Where
20 nm east (100°) of BTV
Time
23:26 UTC
Height
at 36,000 ft
Aircraft
B767
Turbulence
light occasional moderate
B39M at 32,000 ft, 48 nm south, 5:09 pm CDT (22:09 UTC): no turbulence. At the destination end, 48 nm south of the line.
as filed, and in English
```
MPV UA /OV MPV/TM 2209/FL320/TP B39M/TB NEG
```
Report
a routine report filed through MPV
Where
over MPV
Time
22:09 UTC
Height
at 32,000 ft
Aircraft
B39M
Turbulence
none
PC12 at 28,000 ft, 48 nm south, 4:50 pm CDT (21:50 UTC): light rime icing, -27 °C. At the destination end, 48 nm south of the line.
as filed, and in English
```
MPV UA /OV MPV/TM 2150/FL280/TP PC12/TA M27/IC LGT RIME
```
Report
a routine report filed through MPV
Where
over MPV
Time
21:50 UTC
Height
at 28,000 ft
Aircraft
PC12
Temperature
−27 °C
Icing
light rime

2 more routine reports are on the map.

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 (GRI, ONL, OMA, MCW, LSE, GRB, TVC, BUF, SYR, BML). 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	210° at 20 kt	−12 kt		132 kt	9 h 34 min	5:04 am EDT (09:04 UTC)
5,500 ft	230° at 18 kt	−16 kt	18 °C	136 kt	9 h 17 min	4:47 am EDT (08:47 UTC)
7,500 ft	250° at 15 kt	−15 kt	12 °C	135 kt	9 h 21 min	4:51 am EDT (08:51 UTC)
9,500 ft	270° at 13 kt	−13 kt	8 °C	133 kt	9 h 30 min	5:00 am EDT (09:00 UTC)
11,500 ft	270° at 11 kt	−11 kt	5 °C	131 kt	9 h 38 min	5:08 am EDT (09:08 UTC)
13,500 ft	270° at 13 kt	−13 kt	0 °C	133 kt	9 h 30 min	5:00 am EDT (09:00 UTC)
15,500 ft	270° at 15 kt	−15 kt	-4 °C	135 kt	9 h 21 min	4:51 am EDT (08:51 UTC)
17,500 ft	270° at 18 kt	−17 kt	-9 °C	137 kt	9 h 13 min	4:43 am EDT (08:43 UTC)
18,000 ft FL180	270° at 18 kt	−18 kt	-10 °C	138 kt	9 h 09 min	4:39 am EDT (08:39 UTC)
24,000 ft FL240	270° at 26 kt	−26 kt	-20 °C	146 kt	8 h 39 min	4:09 am EDT (08:09 UTC)
30,000 ft FL300	260° at 37 kt	−36 kt	-35 °C	156 kt	8 h 06 min	3:36 am EDT (07:36 UTC)
34,000 ft FL340	270° at 47 kt	−45 kt	-44 °C	165 kt	7 h 39 min	3:09 am EDT (07:09 UTC)
39,000 ft FL390	270° at 61 kt	−58 kt	-52 °C	178 kt	7 h 06 min	2:36 am EDT (06:36 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
GRI	used from 0 nm out; 86 nm from the line		210/31 19°	240/21 14°	240/17 6°	260/27 -7°	260/34 -18°	240/45 -32°	250/56 -40°	260/62 -51°
ONL	used from 99 nm out; 49 nm from the line		200/20 17°	230/26 14°	240/21 7°	250/27 -9°	260/32 -19°	240/44 -34°	240/56 -41°	250/62 -51°
OMA	used from 149 nm out; 67 nm from the line	190/34	230/34 19°	250/25 12°	250/18 6°	250/22 -7°	250/28 -19°	260/34 -32°	260/39 -41°	280/56 -51°
MCW	used from 249 nm out; 77 nm from the line	200/35	240/33 18°	250/20 10°	260/10 6°	270/18 -8°	260/28 -19°	280/30 -34°	290/49 -43°	280/70 -54°
LSE	used from 398 nm out; 45 nm from the line	220/33	250/29 17°	250/15 9°	260/12 6°	280/21 -9°	280/33 -20°	300/43 -36°	310/56 -45°	300/79 -53°
GRB	used from 497 nm out; 78 nm from the line	240/24	260/18 16°	270/20 11°	290/14 4°	280/24 -9°	300/34 -21°	310/51 -38°	310/54 -48°	300/71 -51°
TVC	used from 646 nm out; 47 nm from the line	210/17	290/14 15°	310/20 9°	310/18 2°	310/24 -11°	320/35 -22°	320/53 -39°	310/45 -49°	290/58 -51°
BUF	used from 845 nm out; 149 nm from the line	170/19	L/V 10°	040/9 6°	220/8 2°	230/15 -11°	220/33 -22°	220/47 -35°	230/55 -41°	230/56 -50°
SYR	used from 1044 nm out; 105 nm from the line	160/17	200/22 10°	250/10 6°	L/V 1°	270/11 -11°	220/25 -20°	220/66 -36°	230/89 -42°	240/74 -51°
BML	used from 1193 nm out; 92 nm from the line	220/19	210/17 9°	240/12 4°	270/22 1°	250/21 -11°	260/41 -19°	250/68 -34°	250/82 -44°	250/115 -55°

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
LBF North Platte, NE	departure	VFR	from the east-southeast (110°) at 7 knots	10+ mi	none	2,777 ft	5:53 pm CDT (22:53 UTC)
BBW Broken Bow, NE	50 nm out, 2 nm north of the line	VFR	from the north (360°) at 7 knots	10+ mi	none	2,546 ft	22:53 UTC
SUX Sioux City, IA	209 nm out, 12 nm northwest of the line, tower	VFR	from the south-southwest (210°) at 9 knots	10+ mi	none	1,098 ft	22:52 UTC
EAG Eagle Grove, IA	318 nm out, 2 nm southwest of the line	no report just now				1,132 ft
DEH Decorah, IA	418 nm out, 8 nm north of the line	VFR	from the south (170°) at 7 knots	10+ mi	none	1,157 ft	23:15 UTC
OSH Oshkosh, WI	567 nm out, 19 nm northwest of the line, tower	VFR	from the south (190°) at 8 knots	10+ mi	none	808 ft	22:53 UTC
LDM Ludington, MI	656 nm out, 3 nm west of the line	VFR	from the south (180°) at 4 knots	10+ mi	none	646 ft	23:15 UTC
OSC Oscoda, MI	786 nm out, 8 nm north of the line	VFR	from the south (180°) at 6 knots	10+ mi	none	633 ft	23:15 UTC
CYOS Owen Sound,	895 nm out, 3 nm north of the line	no report just now				1,007 ft
CYSH Smiths Falls-Montague,	1104 nm out, 8 nm north of the line	no report just now				416 ft
BTV Burlington, VT	1223 nm out, 25 nm south of the line, tower	VFR Sky: overcast at 7,000 feet	from the south (180°) at 7 knots	10+ mi	7,000 ft	334 ft	22:54 UTC
EFK Newport, VT	destination	VFR Sky: a broken layer at 12,000 feet	from the south-southeast (160°) at 8 knots	10+ mi	12,000 ft	933 ft	7:15 pm EDT (23:15 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 EFK when you get there the forecast at the estimated arrival, 2:36 am EDT (06:36 UTC)

Wind light and variable, visibility more than 6 miles, overcast at 3,000 feet marginal VFR

The whole forecast for EFK

From Sun 8:00 pm EDT (00:00 UTC): wind from the south at 6 knots, visibility more than 6 miles, a broken layer at 6,000 feet, overcast at 10,000 feet
From Mon 2:00 am EDT (06:00 UTC): wind light and variable, visibility more than 6 miles, overcast at 3,000 feet
From Mon 10:00 am EDT (14:00 UTC): wind light and variable, visibility more than 6 miles, a broken layer at 1,700 feet
From Mon 1:00 pm EDT (17:00 UTC): wind from the northwest at 6 knots, visibility more than 6 miles, overcast at 1,600 feet
From Mon 5:00 pm EDT (21:00 UTC): wind from the north-northwest at 5 knots, visibility more than 6 miles, light rain showers, overcast at 1,300 feet

The forecast for LBF, the departure

From Sun 7:00 pm CDT (00:00 UTC): wind from the east-northeast at 7 knots, visibility more than 6 miles, a few clouds at 25,000 feet
From Sun 11:00 pm CDT (04:00 UTC): wind from the east at 5 knots, visibility more than 6 miles, low-level wind shear, scattered clouds at 25,000 feet
From Mon 5:00 am CDT (10:00 UTC): wind from the south-southeast at 7 knots, visibility more than 6 miles, a few clouds at 25,000 feet
From Mon 7:00 am CDT (12:00 UTC): wind from the west-northwest at 7 knots, visibility more than 6 miles, clear skies

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 LBF 7:06 pm CDT (00:06 UTC), at EFK 6:09 pm EDT (22:09 UTC) (civil twilight ends 6:39 pm EDT (22:39 UTC)). At 120 knots the arrival at EFK is before sunrise there (7:00 am EDT (11:00 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

Radar now, the northern Rockies · loop National Weather Service

Radar now, the upper Mississippi valley · loop National Weather Service

Radar now, the central Great Lakes · loop National Weather Service

Radar, the whole country · loop National Weather Service

Surface analysis now Weather Prediction Center

Forecast chart, 12 hours ahead Weather Prediction Center

Forecast chart, 24 hours ahead Weather Prediction Center

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: North Platte Rgnl/Lee Bird Field, Northeast Kingdom International.