Plan a flight · Sun 9:14 pm CDT (02:14 UTC)

Hector International to MC Ghee Tyson Airport FAR → TYS

880 nautical miles (1,013 statute miles) southeast on a straight line, true course 135°, about 131° magnetic at the departure end (variation 4E). At 120 knots that is 5 h 02 min at the quickest height in today's winds (39,000 ft, a 55-knot tailwind), arriving about 3:16 am EDT (07:16 UTC), after sunset at the destination. Right now FAR is low IFR, wind from the north (010°) at 15 knots; TYS is marginal VFR, wind from the west-southwest (250°) at 12 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: 4 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 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the first 49 nm of the route.
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). Near the route, 247 nm along the route.
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 route from 781 to 860 nm out.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 69 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 FAR.

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

E75L at 900 ft, 0 nm southwest, 8:57 pm CDT (01:57 UTC): no icing, overcast above 1,200 ft. At the departure end, 0 nm southwest of the line.
as filed, and in English
```
FAR UA /OV KFAR/TM 0157/FL009/TP E75L/SK OVC012/IC NEG
```
Report
a routine report filed through FAR
Where
over KFAR
Time
01:57 UTC
Height
at 900 ft
Aircraft
E75L
Sky
overcast from 1,200 ft
Icing
none
A320 descending, 0 nm southwest, 8:01 pm CDT (01:01 UTC): overcast above 1,200 ft, remarks: during the descent runway 36. At the departure end, 0 nm southwest of the line.
as filed, and in English
```
FAR UA /OV KFAR/TM 0101/FLUNKN/TP A320/SK OVC012-TOPUNKN/RM DURD RWY 36
```
Report
a routine report filed through FAR
Where
over KFAR
Time
01:01 UTC
Height
height not given
Aircraft
A320
Sky
overcast from 1,200 ft, tops unknown
Remarks
during the descent runway 36
C56X at 1,300 ft, 0 nm southwest, 6:17 pm CDT (23:17 UTC): overcast above 1,300 ft. At the departure end, 0 nm southwest of the line.
as filed, and in English
```
FAR UA /OV KFAR/TM 2317/FL013/TP C56X/SK OVC013
```
Report
a routine report filed through FAR
Where
over KFAR
Time
23:17 UTC
Height
at 1,300 ft
Aircraft
C56X
Sky
overcast from 1,300 ft
CRJ7 at 18,000 ft, 21 nm northeast, 6:41 pm CDT (23:41 UTC): light rime icing from 18,000 ft to 20,000 ft, -13 °C, remarks: during the descent. 49 nm along the route, 21 nm northeast of the line.
as filed, and in English
```
FAR UA /OV FAR090050/TM 2341/FL180/TP CRJ7/SK BASE180-TOP200/TA M13/IC LGT RIME 180-200/RM DURD
```
Report
a routine report filed through FAR
Where
50 nm east (090°) of FAR
Time
23:41 UTC
Height
at 18,000 ft
Aircraft
CRJ7
Sky
BASE180-TOP200
Temperature
−13 °C
Icing
light rime from 18,000 ft to 20,000 ft
Remarks
during the descent
B39M at 34,000 ft, 16 nm southwest, 6:25 pm CDT (23:25 UTC): light chop turbulence. 178 nm along the route, 16 nm southwest of the line.
as filed, and in English
```
MSP UA /OV MSP240040/TM 2325/FL340/TP B39M/TB LGT CHOP
```
Report
a routine report filed through MSP
Where
40 nm southwest (240°) of MSP
Time
23:25 UTC
Height
at 34,000 ft
Aircraft
B39M
Turbulence
light chop
A321 at 32,000 ft, 28 nm northeast, 8:56 pm CDT (01:56 UTC): light turbulence, remarks: pocket continuous light turbulence. 435 nm along the route, 28 nm northeast of the line.
as filed, and in English
```
RPJ UA /OV PLL/TM 0156/FL320/TP A321/TB CONS LGT/RM POCKET CONS LGT TB
```
Report
a routine report filed through RPJ
Where
over PLL
Time
01:56 UTC
Height
at 32,000 ft
Aircraft
A321
Turbulence
continuous light
Remarks
pocket continuous light turbulence
B38M at 23,700 ft, 11 nm west, 6:51 pm CDT (23:51 UTC): light turbulence. 633 nm along the route, 11 nm west of the line.
as filed, and in English
```
IND UA /OV TTH190030/TM 2351/FL237/TP B38M/TB LGT
```
Report
a routine report filed through IND
Where
30 nm south (190°) of TTH
Time
23:51 UTC
Height
at 23,700 ft
Aircraft
B38M
Turbulence
light
A21N at 17,000 ft, 30 nm northeast, 8:28 pm CDT (01:28 UTC): no icing, clear from 17,000 ft to 60,000 ft, remarks: clear since departing KIND southbound. 663 nm along the route, 30 nm northeast of the line.
as filed, and in English
```
IND UA /OV IND183045/TM 0128/FL170/TP A21N/SK SKC/IC NEG/RM CLR SINCE DEPARTING KIND SOUTHBOUND
```
Report
a routine report filed through IND
Where
45 nm south (183°) of IND
Time
01:28 UTC
Height
at 17,000 ft
Aircraft
A21N
Sky
clear
Icing
none
Remarks
clear since departing KIND southbound
B38M at 21,000 ft, 23 nm northeast, 8:09 pm CDT (01:09 UTC): no turbulence, no icing. 722 nm along the route, 23 nm northeast of the line.
as filed, and in English
```
SDF UA /OV IIU/TM 0109/FL210/TP B38M/TB NEG/IC NEG
```
Report
a routine report filed through SDF
Where
over IIU
Time
01:09 UTC
Height
at 21,000 ft
Aircraft
B38M
Turbulence
none
Icing
none
A320 descending, 4 nm northeast, 8:52 pm CDT (01:52 UTC): remarks: base 2,100 ft. At the destination end, 4 nm northeast of the line.
as filed, and in English
```
TYS UA /OV 4 NE TYS/TM 0152/FLDURD/TP A320/RM BASE 021
```
Report
a routine report filed through TYS
Where
4 northeast tys
Time
01:52 UTC
Height
during the descent
Aircraft
A320
Remarks
base 2,100 ft

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 (AXN, MSP, LSE, DBQ, JOT, SPI, IND, EVV, LOU, 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
3,500 ft	240° at 12 kt	−3 kt		123 kt	7 h 09 min	5:23 am EDT (09:23 UTC)
5,500 ft	270° at 15 kt	−9 kt		129 kt	6 h 49 min	5:03 am EDT (09:03 UTC)
7,500 ft	270° at 16 kt	−12 kt	13 °C	132 kt	6 h 40 min	4:54 am EDT (08:54 UTC)
9,500 ft	280° at 17 kt	−14 kt	9 °C	134 kt	6 h 34 min	4:48 am EDT (08:48 UTC)
11,500 ft	290° at 17 kt	−16 kt	5 °C	136 kt	6 h 28 min	4:42 am EDT (08:42 UTC)
13,500 ft	300° at 19 kt	−18 kt	1 °C	138 kt	6 h 23 min	4:37 am EDT (08:37 UTC)
15,500 ft	300° at 21 kt	−20 kt	-4 °C	140 kt	6 h 17 min	4:31 am EDT (08:31 UTC)
17,500 ft	300° at 22 kt	−22 kt	-8 °C	142 kt	6 h 12 min	4:26 am EDT (08:26 UTC)
18,000 ft FL180	300° at 23 kt	−22 kt	-9 °C	142 kt	6 h 12 min	4:26 am EDT (08:26 UTC)
24,000 ft FL240	300° at 30 kt	−29 kt	-20 °C	149 kt	5 h 54 min	4:08 am EDT (08:08 UTC)
30,000 ft FL300	300° at 43 kt	−42 kt	-35 °C	162 kt	5 h 26 min	3:40 am EDT (07:40 UTC)
34,000 ft FL340	300° at 49 kt	−47 kt	-43 °C	167 kt	5 h 16 min	3:30 am EDT (07:30 UTC)
39,000 ft FL390	300° at 58 kt	−55 kt	-51 °C	175 kt	5 h 02 min	3:16 am EDT (07:16 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
AXN	used from 0 nm out; 62 nm from the line	L/V	220/23 17°	230/24 12°	240/25 5°	260/32 -11°	260/40 -21°	270/50 -35°	270/57 -45°	270/81 -55°
MSP	used from 148 nm out; 30 nm from the line	200/28	240/30 19°	240/24 12°	240/17 5°	270/24 -10°	270/33 -20°	280/48 -35°	290/55 -45°	280/84 -54°
LSE	used from 247 nm out; 50 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°
DBQ	used from 346 nm out; 7 nm from the line	220/23	240/22 16°	240/24 10°	260/18 5°	270/16 -8°	290/27 -19°	310/42 -35°	320/55 -44°	300/71 -52°
JOT	used from 445 nm out; 60 nm from the line	230/11	290/12 16°	300/19 10°	320/19 4°	300/17 -9°	330/31 -20°	320/49 -37°	320/53 -45°	320/67 -49°
SPI	used from 494 nm out; 60 nm from the line	210/13	260/11 17°	270/18 10°	290/21 4°	310/20 -8°	330/25 -19°	320/49 -34°	320/60 -44°	320/59 -50°
IND	used from 593 nm out; 57 nm from the line	320/10	350/30 16°	350/32 10°	350/30 4°	340/31 -10°	340/42 -21°	340/49 -37°	320/46 -41°	320/47 -47°
EVV	used from 643 nm out; 52 nm from the line	310/13	340/26 16°	330/29 10°	330/32 4°	330/30 -9°	340/38 -20°	330/60 -35°	320/57 -41°	330/39 -48°
LOU	used from 692 nm out; 24 nm from the line	320/15	340/24 14°	330/28 9°	340/34 4°	340/37 -9°	340/42 -20°	320/39 -35°	320/45 -39°	330/40 -47°
TYS	used from 791 nm out; 64 nm from the line	290/19	310/22 11°	330/25 7°	330/34 3°	320/37 -7°	300/37 -18°	300/37 -34°	280/29 -39°	270/29 -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
FAR Fargo, ND	departure	low IFR Sky: overcast at 400 feet Weather: mist	from the north (010°) at 15 knots	3 mi	400 ft	901 ft	8:53 pm CDT (01:53 UTC)
FFM Fergus Falls, MN	49 nm out, 8 nm west of the line	VFR Sky: overcast at 10,000 feet	from the north (360°) at 9 knots	10+ mi	10,000 ft	1,182 ft	01:55 UTC
STC St Cloud, MN	138 nm out, 24 nm northeast of the line, tower	VFR	from the north (360°) at 4 knots	10+ mi	none	1,030 ft	01:53 UTC
RST Rochester, MN	257 nm out, 6 nm northeast of the line, tower	VFR	from the south (190°) at 12 knots	8 mi	none	1,317 ft	01:54 UTC
DEH Decorah, IA	307 nm out, 5 nm northeast of the line	VFR	from the south (170°) at 7 knots, gusting to 12	10+ mi	none	1,157 ft	01:55 UTC
DBQ Dubuque, IA	376 nm out, 5 nm northeast of the line, tower	VFR	from the south (170°) at 8 knots	10+ mi	none	1,076 ft	01:53 UTC
BMI Bloomington/Normal, IL	514 nm out, 9 nm southwest of the line, tower	VFR	from the south (180°) at 3 knots	10+ mi	none	871 ft	01:56 UTC
CMI Champaign/Urbana, IL	554 nm out, 3 nm southwest of the line, tower	VFR	from the south (180°) at 5 knots	10+ mi	none	754 ft	01:53 UTC
BMG Bloomington, IN	643 nm out, 23 nm northeast of the line, tower	marginal VFR Sky: a few clouds at 200 feet Weather: mist	calm	3 mi	none	845 ft	02:09 UTC
SDF Louisville, KY	712 nm out, 20 nm northeast of the line, tower	VFR	from the south-southwest (200°) at 4 knots	10+ mi	none	500 ft	01:56 UTC
SCX Oneida, TN	831 nm out, 1 nm southeast of the line	low IFR Sky: a broken layer at 400 feet, overcast at 800 feet	variable at 3 knots	9 mi	400 ft	1,544 ft	01:55 UTC
TYS Knoxville, TN	destination	marginal VFR Sky: a broken layer at 1,300 feet, overcast at 2,700 feet	from the west-southwest (250°) at 12 knots	10+ mi	1,300 ft	986 ft	9:53 pm EDT (01:53 UTC)

The highest airport on this list sits at 1,544 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, 3:16 am EDT (07:16 UTC)

Wind from the southwest at 7 knots, visibility more than 6 miles, a broken layer at 2,500 feet marginal VFR

The whole forecast for TYS

From Sun 8:00 pm EDT (00:00 UTC): wind from the west-southwest at 9 knots, visibility more than 6 miles, scattered clouds at 1,000 feet, a broken layer at 1,500 feet
From Mon 3:00 am EDT (07:00 UTC): wind from the southwest at 7 knots, visibility more than 6 miles, a broken layer at 2,500 feet
From Mon 8:00 am EDT (12:00 UTC): wind light and variable, visibility more than 6 miles, a few clouds at 3,500 feet, scattered clouds at 25,000 feet

The forecast for FAR, the departure

From Sun 7:00 pm CDT (00:00 UTC): wind from the north at 14 knots, visibility more than 6 miles, overcast at 600 feet
From Mon 11:00 am CDT (16:00 UTC): wind from the north-northeast at 10 knots, visibility more than 6 miles, overcast at 1,000 feet
30% chance between Mon 11:00 am CDT (16:00 UTC) and 5:00 pm CDT (22:00 UTC): light rain showers

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 FAR 6:45 pm CDT (23:45 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 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: Hector International, MC Ghee Tyson Airport.