Plan a flight · Mon 6:58 am PDT (13:58 UTC)

Mahlon Sweet Field to Piedmont Triad International EUG → GSO

2,020 nautical miles (2,324 statute miles) east on a straight line, true course 089°, about 074° magnetic at the departure end (variation 15E). At 120 knots that is 12 h 38 min at the quickest height in today's winds (34,000 ft, a 40-knot tailwind), arriving about 10:36 pm EDT (02:36 UTC), after sunset at the destination. Right now EUG is VFR, wind variable at 3 knots; GSO is VFR, wind from the west-northwest (300°) at 11 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 TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the route from 60 to 300 nm out.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 320 to 670 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 340 to 710 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 370 to 1070 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Near the route, 810 nm along the route.
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 1180 to 1320 nm out.
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 1840 to 1950 nm out.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the route from 1890 to 1960 nm out.
AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 6,000 ft. Over the last 90 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 EUG.

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

E170 at 12,000 ft, 10 nm north, 5:52 am PDT (12:52 UTC): moderate turbulence from 12,000 ft to 15,000 ft, remarks: during the climb sbound zse. 100 nm along the route, 10 nm north of the line.
as filed, and in English
```
RDM UA /OV DSD060018/TM 1252/FL120/TP E170/TB MOD 120-150/RM DURC SBOUND ZSE
```
Report
a routine report filed through RDM
Where
18 nm northeast (060°) of DSD
Time
12:52 UTC
Height
at 12,000 ft
Aircraft
E170
Turbulence
moderate from 12,000 ft to 15,000 ft
Remarks
during the climb sbound zse
B38M at 17,000 ft, 30 nm south, 5:41 am PDT (12:41 UTC): no turbulence, remarks: during the climb. 1180 nm along the route, 30 nm south of the line.
as filed, and in English
```
LNK UA /OV LNK/TM 1241/FL170/TP B38M/TB NEG/RM DURC
```
Report
a routine report filed through LNK
Where
over LNK
Time
12:41 UTC
Height
at 17,000 ft
Aircraft
B38M
Turbulence
none
Remarks
during the climb
B38M at 18,000 ft, 38 nm south, 6:04 am PDT (13:04 UTC): light chop turbulence. 1270 nm along the route, 38 nm south of the line.
as filed, and in English
```
EVU UA /OV EVU/TM 1304/FL180/TP B38M/TB CONS LGT CHOP
```
Report
a routine report filed through EVU
Where
over EVU
Time
13:04 UTC
Height
at 18,000 ft
Aircraft
B38M
Turbulence
continuous light chop
B763 at 26,000 ft, 19 nm south, 4:57 am PDT (11:57 UTC): no turbulence, no icing. 1640 nm along the route, 19 nm south of the line.
as filed, and in English
```
EVV UA /OV OWB360045/TM 1157/FL260/TP B763/TB NEG/IC NEG
```
Report
a routine report filed through EVV
Where
45 nm north (360°) of OWB
Time
11:57 UTC
Height
at 26,000 ft
Aircraft
B763
Turbulence
none
Icing
none
C525 at 41,000 ft, 22 nm southwest, 5:53 am PDT (12:53 UTC): no turbulence, -7 °C, wind 328° at 31 knots, remarks: smooth ride during the descent F410-F195. 1670 nm along the route, 22 nm southwest of the line.
as filed, and in English
```
HNB UA /OV IIU280060 /TM 1253 /FL410 /TP C525 /TA M07 /WV 32831KT /TB NEG /RM SMOOTH RIDE DURD F410-F195
```
Report
a routine report filed through HNB
Where
60 nm west (280°) of IIU
Time
12:53 UTC
Height
at 41,000 ft
Aircraft
C525
Temperature
−7 °C
Wind
from 328° at 31 knots
Turbulence
none
Remarks
smooth ride during the descent F410-F195
EMBRAER at 400 ft, 49 nm northeast, 6:37 am PDT (13:37 UTC): haze, remarks: ils runway 23 ceiling at 400 ft. 1680 nm along the route, 49 nm northeast of the line.
as filed, and in English
```
BAK UA /OV KBAK/TM 1337/FL004/TP EMBRAER/WX HZ/RM ILS RWY 23 CEILING 004
```
Report
a routine report filed through BAK
Where
over KBAK
Time
13:37 UTC
Height
at 400 ft
Aircraft
EMBRAER
Weather
haze
Remarks
ils runway 23 ceiling at 400 ft
G280 at 200 ft, 49 nm northeast, 6:10 am PDT (13:10 UTC): fog, remarks: ils runway 23 runway environment aquired at at 20,000 ft feet above ground. 1680 nm along the route, 49 nm northeast of the line.
as filed, and in English
```
BAK UA /OV KBAK/TM 1310/FL002/TP G280/WX FG/RM ILS RWY 23 RUNWAY ENVIRONMENT AQUIRED AT 200 FEET AGL
```
Report
a routine report filed through BAK
Where
over KBAK
Time
13:10 UTC
Height
at 200 ft
Aircraft
G280
Weather
fog
Remarks
ils runway 23 runway environment aquired at at 20,000 ft feet above ground
AC90 at 28,000 ft, 21 nm north, 5:17 am PDT (12:17 UTC): light chop turbulence, no icing. 1720 nm along the route, 21 nm north of the line.
as filed, and in English
```
SDF UA /OV IIU010030/TM 1217/FL280/TP AC90/TB OCNL LGT CHOP/IC NEG
```
Report
a routine report filed through SDF
Where
30 nm north (010°) of IIU
Time
12:17 UTC
Height
at 28,000 ft
Aircraft
AC90
Turbulence
occasional light chop
Icing
none
PC12 at 17,000 ft, 37 nm northeast, 4:01 am PDT (11:01 UTC): no turbulence, clear from 17,000 ft to 60,000 ft, remarks: lil dark. 1760 nm along the route, 37 nm northeast of the line.
as filed, and in English
```
LEX UA /OV HYK360035/TM 1101/FL170/TP PC12/SK SKC/TB NEG/RM LIL DARK
```
Report
a routine report filed through LEX
Where
35 nm north (360°) of HYK
Time
11:01 UTC
Height
at 17,000 ft
Aircraft
PC12
Sky
clear
Turbulence
none
Remarks
lil dark
BE30 climbing, 5 nm north, 6:40 am PDT (13:40 UTC): a routine report with nothing remarked on. 1770 nm along the route, 5 nm north of the line.
as filed, and in English
```
LEX UA /OV LEX180002/TM 1340/FLDURC/TP BE30/SK TOPS 013
```
Report
a routine report filed through LEX
Where
2 nm south (180°) of LEX
Time
13:40 UTC
Height
during the climb
Aircraft
BE30
Sky
tops 1,300 ft
E55P climbing, 7 nm north, 5:22 am PDT (12:22 UTC): a routine report with nothing remarked on. 1770 nm along the route, 7 nm north of the line.
as filed, and in English
```
LEX UA /OV LEX270002/TM 1222/FLDURC/TP E55P/SK VV002 TOPS 018
```
Report
a routine report filed through LEX
Where
2 nm west (270°) of LEX
Time
12:22 UTC
Height
during the climb
Aircraft
E55P
Sky
sky obscured from 200 ft, tops 1,800 ft
A319 climbing, 10 nm north, 4:55 am PDT (11:55 UTC): a routine report with nothing remarked on. 1770 nm along the route, 10 nm north of the line.
as filed, and in English
```
LEX UA /OV LEX045003/TM 1155/FLDURC/TP A319/SK TOPS 020
```
Report
a routine report filed through LEX
Where
3 nm northeast (045°) of LEX
Time
11:55 UTC
Height
during the climb
Aircraft
A319
Sky
tops 2,000 ft
C25B at 11,000 ft, 22 nm south, 4:23 am PDT (11:23 UTC): no turbulence. 1770 nm along the route, 22 nm south of the line.
as filed, and in English
```
LOZ UA /OV DVK/TM 1123/FL110/TP C25B/TB NEG
```
Report
a routine report filed through LOZ
Where
over DVK
Time
11:23 UTC
Height
at 11,000 ft
Aircraft
C25B
Turbulence
none
E55P at 14,000 ft, 47 nm south, 5:13 am PDT (12:13 UTC): a routine report with nothing remarked on. 1790 nm along the route, 47 nm south of the line.
as filed, and in English
```
LOZ UA /OV SME/TM 1213/FL140/TP E55P/SK TOP 010
```
Report
a routine report filed through LOZ
Where
over SME
Time
12:13 UTC
Height
at 14,000 ft
Aircraft
E55P
Sky
top 1,000 ft

5 more routine reports are on the map.

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 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 16 forecast points nearest it (RDM, BOI, PIH, LND, BFF, ONL, GRI, OMA, DSM, BRL, SPI, EVV, LOU, TRI, ROA, RDU). A plus sign is a headwind, a minus sign a tailwind.

Height	Average wind	Head- or tailwind	Temperature	Ground speed	Time en route	Arrival
5,500 ft	280° at 16 kt	−15 kt	8 °C	135 kt	14 h 58 min	12:56 am EDT (04:56 UTC)
7,500 ft	280° at 13 kt	−13 kt	9 °C	133 kt	15 h 11 min	1:09 am EDT (05:09 UTC)
9,500 ft	270° at 12 kt	−12 kt	5 °C	132 kt	15 h 18 min	1:16 am EDT (05:16 UTC)
11,500 ft	260° at 14 kt	−13 kt	1 °C	133 kt	15 h 11 min	1:09 am EDT (05:09 UTC)
13,500 ft	260° at 16 kt	−15 kt	-2 °C	135 kt	14 h 58 min	12:56 am EDT (04:56 UTC)
15,500 ft	260° at 18 kt	−17 kt	-6 °C	137 kt	14 h 45 min	12:43 am EDT (04:43 UTC)
17,500 ft	260° at 20 kt	−19 kt	-10 °C	139 kt	14 h 32 min	12:30 am EDT (04:30 UTC)
18,000 ft FL180	260° at 20 kt	−19 kt	-11 °C	139 kt	14 h 32 min	12:30 am EDT (04:30 UTC)
24,000 ft FL240	260° at 25 kt	−23 kt	-23 °C	143 kt	14 h 08 min	12:06 am EDT (04:06 UTC)
30,000 ft FL300	260° at 33 kt	−32 kt	-33 °C	152 kt	13 h 17 min	11:15 pm EDT (03:15 UTC)
34,000 ft FL340	270° at 40 kt	−40 kt	-38 °C	160 kt	12 h 38 min	10:36 pm EDT (02:36 UTC)
39,000 ft FL390	260° at 39 kt	−39 kt	-46 °C	159 kt	12 h 42 min	10:40 pm EDT (02:40 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
RDM	used from 0 nm out; 64 nm from the line		360/14 -2°	020/25 -8°	360/34 -13°	360/75 -16°	360/88 -25°	360/80 -39°	350/47 -42°	360/11 -43°
BOI	used from 200 nm out; 83 nm from the line		320/11 1°	280/8 -5°	220/14 -11°	200/60 -19°	190/66 -31°	210/46 -32°	220/50 -33°	220/43 -39°
PIH	used from 400 nm out; 67 nm from the line		070/8	150/19 1°	180/32 -4°	210/44 -17°	210/37 -28°	210/74 -31°	220/68 -35°	220/60 -43°
LND	used from 550 nm out; 70 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°
BFF	used from 750 nm out; 107 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°
ONL	used from 950 nm out; 103 nm from the line		250/31 22°	230/27 16°	220/25 8°	230/25 -9°	220/29 -22°	250/42 -33°	250/48 -36°	250/52 -46°
GRI	used from 1100 nm out; 49 nm from the line		230/39 23°	230/32 15°	210/29 7°	230/31 -8°	230/43 -21°	250/52 -31°	260/59 -35°	260/59 -46°
OMA	used from 1150 nm out; 37 nm from the line	230/47	240/33 21°	230/22 13°	220/27 5°	240/35 -8°	250/43 -21°	260/47 -33°	260/59 -36°	270/58 -46°
DSM	used from 1250 nm out; 55 nm from the line	250/47	260/25 20°	240/19 11°	240/31 5°	250/26 -9°	260/38 -20°	260/47 -34°	270/58 -37°	270/61 -47°
BRL	used from 1350 nm out; 67 nm from the line	250/32	250/19 17°	260/15 11°	270/16 3°	290/23 -7°	260/42 -20°	270/52 -34°	280/63 -39°	290/64 -48°
SPI	used from 1450 nm out; 36 nm from the line	260/28	250/22 15°	250/14 9°	260/20 6°	280/27 -7°	280/34 -19°	280/48 -32°	280/59 -41°	300/60 -49°
EVV	used from 1600 nm out; 51 nm from the line	270/25	290/17 15°	260/10 8°	270/16 5°	280/29 -6°	280/33 -19°	290/38 -33°	300/53 -41°	310/54 -51°
LOU	used from 1650 nm out; 43 nm from the line	300/16	310/19 15°	310/17 9°	300/15 4°	300/26 -6°	280/34 -19°	290/30 -34°	310/49 -42°	310/58 -51°
TRI	used from 1800 nm out; 85 nm from the line		340/25 11°	350/37 9°	350/34 6°	340/39 -7°	340/43 -19°	340/55 -32°	330/58 -42°	320/37 -50°
ROA	used from 1950 nm out; 65 nm from the line	310/32	340/32 14°	350/25 9°	340/24 3°	340/42 -8°	340/52 -20°	350/62 -34°	350/64 -39°	310/44 -48°
RDU	used from 2000 nm out; 67 nm from the line	330/30	340/24 12°	330/26 7°	320/30 3°	330/39 -8°	310/30 -20°	300/33 -33°	310/34 -39°	310/41 -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
EUG Eugene, OR	departure	VFR Sky: a few clouds at 8,000 feet Weather: patches of fog	variable at 3 knots	10+ mi	none	373 ft	6:54 am PDT (13:54 UTC)
RDM Redmond, OR	90 nm out, 7 nm north of the line, tower	VFR Sky: overcast at 8,500 feet	calm	10+ mi	8,500 ft	3,081 ft	12:56 UTC
ONO Ontario, OR	270 nm out, 4 nm southwest of the line	VFR Sky: overcast at 10,000 feet	from the west (280°) at 7 knots	10+ mi	10,000 ft	2,193 ft	13:53 UTC
JAC Jackson, WY	540 nm out, 3 nm south of the line, tower	VFR Sky: a broken layer at 6,000 feet, a broken layer at 7,500 feet, overcast at 9,000 feet	variable at 4 knots	10+ mi	6,000 ft	6,451 ft	12:56 UTC
CPR Casper, WY	730 nm out, 16 nm south of the line, tower	IFR Sky: a broken layer at 600 feet, a broken layer at 4,900 feet	from the north (350°) at 9 knots	10+ mi	600 ft	5,344 ft	13:53 UTC
LSK Lusk, WY	820 nm out, 8 nm south of the line	no report just now				4,966 ft
OMA Omaha, NE	1210 nm out, 3 nm northeast of the line, tower	VFR Sky: scattered clouds at 12,000 feet, scattered clouds at 25,000 feet	from the south-southeast (160°) at 11 knots	10+ mi	none	984 ft	13:52 UTC
CBF Council Bluffs, IA	1220 nm out, 3 nm northwest of the line	VFR	from the south (180°) at 15 knots	9 mi	none	1,244 ft	13:35 UTC
SPI Springfield, IL	1510 nm out, 14 nm north of the line, tower	VFR	from the south-southwest (200°) at 7 knots	10+ mi	none	597 ft	13:52 UTC
LOU Louisville, KY	1720 nm out, 4 nm southwest of the line, tower	VFR	from the south (170°) at 4 knots	10+ mi	none	545 ft	13:53 UTC
CPF Hazard, KY	1840 nm out, 3 nm southeast of the line	IFR Sky: overcast at 600 feet	from the west-southwest (240°) at 4 knots	10+ mi	600 ft	1,256 ft	13:55 UTC
GSO Greensboro, NC	destination	VFR Sky: a few clouds at 25,000 feet	from the west-northwest (300°) at 11 knots	10+ mi	none	925 ft	9:54 am EDT (13:54 UTC)

The highest airport on this list sits at 6,451 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At GSO when you get there the forecast at the estimated arrival, 10:36 pm EDT (02:36 UTC)

Wind from the northwest at 4 knots, visibility more than 6 miles, scattered clouds at 25,000 feet VFR

The whole forecast for GSO

From Mon 8:00 am EDT (12:00 UTC): wind from the west at 9 knots, visibility more than 6 miles, a few clouds at 3,000 feet, a few clouds at 10,000 feet
From Mon 10:00 am EDT (14:00 UTC): wind from the northwest at 11 knots, gusting to 19, visibility more than 6 miles, scattered clouds at 3,000 feet, scattered clouds at 10,000 feet
From Mon 5:30 pm EDT (21:30 UTC): wind from the northwest at 4 knots, visibility more than 6 miles, scattered clouds at 25,000 feet

The forecast for EUG, the departure

From Mon 5:00 am PDT (12:00 UTC): wind from the south-southwest at 4 knots, visibility more than 6 miles, clear skies
From Mon 12:00 pm PDT (19:00 UTC): wind from the north at 6 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 EUG 6:32 pm PDT (01:32 UTC), at GSO 6:48 pm EDT (22:48 UTC) (civil twilight ends 7:13 pm EDT (23:13 UTC)). At 120 knots the arrival at GSO is after sunset there (6:48 pm EDT (22:48 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 Pacific Northwest · loop National Weather Service

Radar now, the northern Rockies · loop National Weather Service

Radar now, the upper 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: Mahlon Sweet Field, Piedmont Triad International.