Plan a flight · Mon 1:57 am EDT (05:57 UTC)

Buffalo Niagara International to MC Ghee Tyson Airport BUF → TYS

493 nautical miles (567 statute miles) southwest on a straight line, true course 211°, about 222° magnetic at the departure end (variation 11W). At 120 knots that is 3 h 38 min at the quickest height in today's winds (18,000 ft, a 16-knot tailwind), arriving about 5:35 am EDT (09:35 UTC), after sunset at the destination. Right now BUF is VFR, wind calm; TYS is marginal VFR, wind from the southwest (220°) 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: 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 SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the last 404 nm of the route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 207 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 BUF.

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

urgent B39M at 35,000 ft, 41 nm northwest, 11:15 pm EDT (03:15 UTC): remarks: no inj/dmg zob. 59 nm along the route, 41 nm northwest of the line.
as filed, and in English
```
DKK UUA /OV DKK280040/TM 0315/FL350/TP B39M/TB MTN WVE ACTN +/-5KTS/RM NO INJ/DMG ZOB
```
Report
an urgent report filed through DKK
Where
40 nm west (280°) of DKK
Time
03:15 UTC
Height
at 35,000 ft
Aircraft
B39M
Turbulence
mountain wve actn a 5-knot loss of airspeed
Remarks
no inj/dmg zob
B738 descending, 0 nm west, 11:15 pm EDT (03:15 UTC): remarks: multiple layers from from 5,200 ft to 4,700 ft overcast at at 2,300 ft. At the destination end, 0 nm west of the line.
as filed, and in English
```
TYS UA /OV KTYS/TM 0315/FLDURD/TP B738/RM MULTIPLE LAYERS FROM 052-047 OVC AT 023
```
Report
a routine report filed through TYS
Where
over KTYS
Time
03:15 UTC
Height
during the descent
Aircraft
B738
Remarks
multiple layers from from 5,200 ft to 4,700 ft overcast at at 2,300 ft

Winds aloft along the route, and the time en route the forecast for use 02:00–09:00 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 5 forecast points nearest it (BUF, AGC, CRW, TRI, TYS). 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	340° at 18 kt	−10 kt	11 °C	130 kt	3 h 48 min	5:45 am EDT (09:45 UTC)
6,500 ft	340° at 20 kt	−12 kt	10 °C	132 kt	3 h 44 min	5:41 am EDT (09:41 UTC)
8,500 ft	340° at 21 kt	−13 kt	8 °C	133 kt	3 h 42 min	5:39 am EDT (09:39 UTC)
10,500 ft	340° at 21 kt	−13 kt	5 °C	133 kt	3 h 42 min	5:39 am EDT (09:39 UTC)
12,500 ft	330° at 22 kt	−13 kt	2 °C	133 kt	3 h 42 min	5:39 am EDT (09:39 UTC)
14,500 ft	330° at 25 kt	−14 kt	-3 °C	134 kt	3 h 41 min	5:38 am EDT (09:38 UTC)
16,500 ft	330° at 27 kt	−15 kt	-7 °C	135 kt	3 h 39 min	5:36 am EDT (09:36 UTC)
18,000 ft FL180	330° at 28 kt	−16 kt	-10 °C	136 kt	3 h 38 min	5:35 am EDT (09:35 UTC)
24,000 ft FL240	330° at 32 kt	−16 kt	-21 °C	136 kt	3 h 38 min	5:35 am EDT (09:35 UTC)
30,000 ft FL300	330° at 37 kt	−16 kt	-36 °C	136 kt	3 h 38 min	5:35 am EDT (09:35 UTC)
34,000 ft FL340	310° at 38 kt	−9 kt	-40 °C	129 kt	3 h 49 min	5:46 am EDT (09:46 UTC)
39,000 ft FL390	310° at 38 kt	−6 kt	-48 °C	126 kt	3 h 55 min	5:52 am EDT (09:52 UTC)

Based on data from the 12th at 00:00 UTC; valid on the 12th at 06:00 UTC for use 02:00 to 09:00 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
BUF	used from 0 nm out; 25 nm from the line	320/10	010/16 10°	360/10 6°	340/13 2°	330/22 -11°	300/25 -23°	320/31 -38°	300/29 -44°	280/36 -50°
AGC	used from 99 nm out; 51 nm from the line	350/14	330/20 11°	340/18 8°	330/17 3°	340/22 -11°	340/31 -22°	330/33 -36°	300/34 -41°	300/35 -47°
CRW	used from 246 nm out; 41 nm from the line	330/20	330/23 11°	340/25 8°	340/21 2°	340/33 -9°	340/41 -20°	330/42 -35°	320/44 -39°	320/43 -47°
TRI	used from 345 nm out; 71 nm from the line		330/22 11°	330/29 7°	330/32 3°	330/36 -8°	320/34 -19°	320/36 -34°	320/43 -39°	320/46 -47°
TYS	used from 443 nm out; 25 nm from the line	320/20	340/18 11°	340/32 9°	340/36 4°	330/37 -7°	330/38 -19°	330/50 -34°	330/53 -38°	330/44 -48°

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
BUF Buffalo, NY	departure	VFR Sky: a broken layer at 11,000 feet, a broken layer at 13,000 feet	calm	10+ mi	11,000 ft	726 ft	12:54 am EDT (04:54 UTC)
JHW Jamestown, NY	49 nm out, 6 nm southeast of the line	marginal VFR Sky: overcast at 2,100 feet	calm	10+ mi	2,100 ft	1,723 ft	04:56 UTC
YNG Youngstown/Warren, OH	128 nm out, 23 nm northwest of the line, tower	marginal VFR Sky: a few clouds at 800 feet, overcast at 1,600 feet	calm	10+ mi	1,600 ft	1,191 ft	05:51 UTC
BVI Beaver Falls, PA	148 nm out, 4 nm southeast of the line, tower	reported, no category	calm		none	1,252 ft	19:47 UTC
PKB Parkersburg, WV	246 nm out, 5 nm southeast of the line, tower	marginal VFR Sky: scattered clouds at 800 feet, overcast at 1,300 feet	from the west-northwest (290°) at 3 knots	8 mi	1,300 ft	858 ft	05:53 UTC
USW Spencer, WV	276 nm out, 23 nm southeast of the line	no report just now				928 ft
HTS Huntington, WV	325 nm out, 13 nm northwest of the line, tower	marginal VFR Sky: scattered clouds at 900 feet, overcast at 1,800 feet	calm	10+ mi	1,800 ft	828 ft	05:51 UTC
SJS Prestonsburg, KY	355 nm out, 5 nm south of the line	low IFR Sky: overcast at 400 feet	from the west-northwest (300°) at 6 knots	10+ mi	400 ft	1,221 ft	05:35 UTC
MOR Morristown, TN	463 nm out, 17 nm east of the line	marginal VFR Sky: scattered clouds at 600 feet, a broken layer at 1,700 feet, overcast at 3,500 feet	from the west-southwest (250°) at 8 knots	10+ mi	1,700 ft	1,312 ft	05:35 UTC
TYS Knoxville, TN	destination	marginal VFR Sky: overcast at 3,000 feet	from the southwest (220°) at 6 knots	10+ mi	3,000 ft	986 ft	1:53 am EDT (05:53 UTC)

The highest airport on this list sits at 1,723 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At TYS when you get there the forecast at the estimated arrival, 5:35 am EDT (09:35 UTC)

Wind from the southwest at 4 knots, visibility more than 6 miles, scattered clouds at 2,500 feet VFR

At times between Mon 5:00 am EDT (09:00 UTC) and 9:00 am EDT (13:00 UTC): a broken layer at 2,500 feet marginal VFR

The whole forecast for TYS

From Mon 2:00 am EDT (06:00 UTC): wind from the southwest at 4 knots, visibility more than 6 miles, overcast at 2,500 feet
From Mon 5:00 am EDT (09:00 UTC): wind from the southwest at 4 knots, visibility more than 6 miles, scattered clouds at 2,500 feet
At times between Mon 5:00 am EDT (09:00 UTC) and 9:00 am EDT (13:00 UTC): a broken layer at 2,500 feet
From Mon 12:00 pm EDT (16:00 UTC): wind from the west-southwest at 5 knots, visibility more than 6 miles, clear skies

The forecast for BUF, the departure

From Mon 2:00 am EDT (06:00 UTC): wind light and variable, visibility 4 miles, mist, overcast at 2,000 feet
From Mon 5:00 am EDT (09:00 UTC): wind calm, visibility 5 miles, mist, overcast at 300 feet
From Mon 10:00 am EDT (14:00 UTC): wind from the west-southwest at 5 knots, visibility more than 6 miles, overcast at 700 feet
From Mon 1:00 pm EDT (17:00 UTC): wind from the west-southwest at 9 knots, visibility more than 6 miles, overcast at 1,500 feet
From Tue 1:00 am EDT (05:00 UTC): wind from the southwest at 6 knots, visibility more than 6 miles, low-level wind shear, a few clouds at 12,000 feet

Temporary flight restrictions on the line or within 25 nm of it

6/8587 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local on the route, 118 nm along the route · a VIP movement · today · ZOB
6/8888 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local 21 nm from the route, 128 nm along the route · security · today · ZOB
6/8829 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local 8 nm from the route, 138 nm along the route · a VIP movement · today · ZOB

Daylight

Sunset at BUF 6:37 pm EDT (22:37 UTC), at TYS 7:04 pm EDT (23:04 UTC) (civil twilight ends 7:30 pm EDT (23:30 UTC)). At 120 knots the arrival at TYS is before sunrise there (7:39 am EDT (11:39 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 Northeast · loop National Weather Service

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

Radar now, the lower Mississippi valley · 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: Buffalo Niagara International, MC Ghee Tyson Airport.