Plan a flight · Sun 8:40 pm CDT (01:40 UTC)

Duluth International to Piedmont Triad International DLH → GSO

846 nautical miles (974 statute miles) southeast on a straight line, true course 135°, about 136° magnetic at the departure end (variation 1W). At 120 knots that is 5 h 15 min at the quickest height in today's winds (39,000 ft, a 41-knot tailwind), arriving about 2:55 am EDT (06:55 UTC), after sunset at the destination. Right now DLH is VFR, wind from the south (180°) at 4 knots; GSO is VFR, wind from the southwest (230°) 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

SIGMET 3E: thunderstorms (a convective SIGMET) up to 31,000 ft, moving from the west at 15 knots, until 9:55 pm CDT (02:55 UTC). Over the route from 647 to 777 nm out.

as issued

WSUS31 KKCI 120055
MKCE WST 120055
CONVECTIVE SIGMET 3E
VALID UNTIL 0255Z
PA MD VA NC WV OH KY
FROM 20NE APE-30SE JST-30SSE DCA-40SW ECG-70NNW HMV-20NE APE
AREA TS MOV FROM 28015KT. TOPS TO FL310.

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 518 to 796 nm out.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 667 to 816 nm out.
AIRMET TANGO 5W: moderate turbulence below 18,000 ft (due to mountain wave) up to 8,000 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 DLH.

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

A320 at 33,000 ft, 40 nm northeast, 7:36 pm CDT (00:36 UTC): moderate turbulence above 33,000 ft, remarks: zob. 408 nm along the route, 40 nm northeast of the line.
as filed, and in English
```
JXN UA /OV JXN280030/TM 0036/FL330/TP A320/TB OCNL MOD 330/RM ZOB
```
Report
a routine report filed through JXN
Where
30 nm west (280°) of JXN
Time
00:36 UTC
Height
at 33,000 ft
Aircraft
A320
Turbulence
occasional moderate at 33,000 ft
Remarks
zob
PC12 at 20,000 ft, 48 nm west, 6:55 pm CDT (23:55 UTC): light rime icing, -13 °C. At the departure end, 48 nm west of the line.
as filed, and in English
```
GPZ UA /OV GPZ160020/TM 2355/FL200/TP PC12/SK TOP200/TA M13/IC LGT RIME
```
Report
a routine report filed through GPZ
Where
20 nm south (160°) of GPZ
Time
23:55 UTC
Height
at 20,000 ft
Aircraft
PC12
Sky
TOP200
Temperature
−13 °C
Icing
light rime
E295 at 37,000 ft, 33 nm southwest, 7:53 pm CDT (00:53 UTC): light chop turbulence. 279 nm along the route, 33 nm southwest of the line.
as filed, and in English
```
UES UA /OV BAE/TM 0053/FL370/TP E295/TB OCNL LGT CHOP
```
Report
a routine report filed through UES
Where
over BAE
Time
00:53 UTC
Height
at 37,000 ft
Aircraft
E295
Turbulence
occasional light chop
CRJ7 at 17,000 ft, 30 nm southwest, 7:04 pm CDT (00:04 UTC): no turbulence. 358 nm along the route, 30 nm southwest of the line.
as filed, and in English
```
BEH UA /OV ELX270040/TM 0004/FL170/TP CRJ7/TB NEG
```
Report
a routine report filed through BEH
Where
40 nm west (270°) of ELX
Time
00:04 UTC
Height
at 17,000 ft
Aircraft
CRJ7
Turbulence
none
B38M at 31,000 ft, 24 nm northeast, 7:04 pm CDT (00:04 UTC): light chop turbulence up to 31,000 ft. 398 nm along the route, 24 nm northeast of the line.
as filed, and in English
```
AZO UA /OV AZO/TM 0004/FL310/TP B38M/TB CONS LGT CHOP 310 BLO
```
Report
a routine report filed through AZO
Where
over AZO
Time
00:04 UTC
Height
at 31,000 ft
Aircraft
B38M
Turbulence
continuous light chop at 31,000 ft below
F2TH at 3,100 ft, 37 nm northeast, 6:40 pm CDT (23:40 UTC): remarks: tops 3,100 ft. 398 nm along the route, 37 nm northeast of the line.
as filed, and in English
```
AZO UA /OV BTL/TM 2340/FL031/TP F2TH/RM TOPS 031
```
Report
a routine report filed through AZO
Where
over BTL
Time
23:40 UTC
Height
at 3,100 ft
Aircraft
F2TH
Remarks
tops 3,100 ft
UAL2761 at 33,000 ft, 27 nm northeast, 6:24 pm CDT (23:24 UTC): no turbulence, wind 310° at 40 knots. 448 nm along the route, 27 nm northeast of the line.
as filed, and in English
```
ARP UAL2761 4139N 08447W 2324 F330 310/040KT TB SMTH IC
```
Report
a routine report filed through ARP
E145 at 2,600 ft, 13 nm west, 6:05 pm CDT (23:05 UTC): a routine report with nothing remarked on. 468 nm along the route, 13 nm west of the line.
as filed, and in English
```
FWA UA /OV FWA/TM 2305/FL026/TP E145/SK B026
```
Report
a routine report filed through FWA
Where
over FWA
Time
23:05 UTC
Height
at 2,600 ft
Aircraft
E145
Sky
B026
A321 at 21,000 ft, 2 nm east, 7:23 pm CDT (00:23 UTC): no turbulence. 528 nm along the route, 2 nm east of the line.
as filed, and in English
```
IND UA /OV ROD/TM 0023/FL210/TP A321/TB NEG
```
Report
a routine report filed through IND
Where
over ROD
Time
00:23 UTC
Height
at 21,000 ft
Aircraft
A321
Turbulence
none
E545 at 28,000 ft, 2 nm east, 6:15 pm CDT (23:15 UTC): no turbulence. 528 nm along the route, 2 nm east of the line.
as filed, and in English
```
IND UA /OV ROD/TM 2315/FL280/TP E545/TB NEG
```
Report
a routine report filed through IND
Where
over ROD
Time
23:15 UTC
Height
at 28,000 ft
Aircraft
E545
Turbulence
none
CRJ9 descending, 20 nm southwest, 8:15 pm CDT (01:15 UTC): a routine report with nothing remarked on. 538 nm along the route, 20 nm southwest of the line.
as filed, and in English
```
DAY UA /OV DAY/TM 0115/FLDURD/TP CRJ9/SK T031 B005
```
Report
a routine report filed through DAY
Where
over DAY
Time
01:15 UTC
Height
during the descent
Aircraft
CRJ9
Sky
T031 B005
E145 climbing, 20 nm southwest, 6:51 pm CDT (23:51 UTC): a routine report with nothing remarked on. 538 nm along the route, 20 nm southwest of the line.
as filed, and in English
```
CMH UA /OV DAY/TM 2351/FLDURC/TP E145/SK B005 T035
```
Report
a routine report filed through CMH
Where
over DAY
Time
23:51 UTC
Height
during the climb
Aircraft
E145
Sky
B005 T035
BCS3 at 3,000 ft, 32 nm northeast, 7:27 pm CDT (00:27 UTC): a routine report with nothing remarked on. 577 nm along the route, 32 nm northeast of the line.
as filed, and in English
```
CMH UA /OV CMH/TM 0027/FL030/TP BCS3/SK T037
```
Report
a routine report filed through CMH
Where
over CMH
Time
00:27 UTC
Height
at 3,000 ft
Aircraft
BCS3
Sky
T037
C150 climbing, 31 nm northeast, 5:45 pm CDT (22:45 UTC): a routine report with nothing remarked on. 597 nm along the route, 31 nm northeast of the line.
as filed, and in English
```
CMH UA /OV LHQ/TM 2245/FLDURC/TP C150/SK B015 T038
```
Report
a routine report filed through CMH
Where
over LHQ
Time
22:45 UTC
Height
during the climb
Aircraft
C150
Sky
B015 T038

10 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 7 forecast points nearest it (DLH, GRB, MKG, FWA, CMH, CRW, ROA). 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	280° at 10 kt	−8 kt		128 kt	6 h 37 min	4:17 am EDT (08:17 UTC)
5,500 ft	290° at 12 kt	−11 kt		131 kt	6 h 27 min	4:07 am EDT (08:07 UTC)
7,500 ft	300° at 14 kt	−13 kt	12 °C	133 kt	6 h 22 min	4:02 am EDT (08:02 UTC)
9,500 ft	300° at 14 kt	−13 kt	8 °C	133 kt	6 h 22 min	4:02 am EDT (08:02 UTC)
11,500 ft	310° at 12 kt	−12 kt	4 °C	132 kt	6 h 25 min	4:05 am EDT (08:05 UTC)
13,500 ft	310° at 13 kt	−13 kt	0 °C	133 kt	6 h 22 min	4:02 am EDT (08:02 UTC)
15,500 ft	310° at 15 kt	−15 kt	-4 °C	135 kt	6 h 16 min	3:56 am EDT (07:56 UTC)
17,500 ft	300° at 18 kt	−17 kt	-9 °C	137 kt	6 h 11 min	3:51 am EDT (07:51 UTC)
18,000 ft FL180	300° at 18 kt	−18 kt	-10 °C	138 kt	6 h 08 min	3:48 am EDT (07:48 UTC)
24,000 ft FL240	300° at 26 kt	−25 kt	-21 °C	145 kt	5 h 50 min	3:30 am EDT (07:30 UTC)
30,000 ft FL300	290° at 34 kt	−31 kt	-35 °C	151 kt	5 h 36 min	3:16 am EDT (07:16 UTC)
34,000 ft FL340	290° at 38 kt	−32 kt	-43 °C	152 kt	5 h 34 min	3:14 am EDT (07:14 UTC)
39,000 ft FL390	290° at 50 kt	−41 kt	-50 °C	161 kt	5 h 15 min	2:55 am EDT (06:55 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
DLH	used from 0 nm out; 25 nm from the line	240/6	230/22 15°	250/28 11°	230/22 4°	270/33 -12°	280/47 -21°	280/59 -37°	290/65 -47°	290/88 -55°
GRB	used from 100 nm out; 99 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°
MKG	used from 299 nm out; 38 nm from the line	250/5	320/10 15°	310/19 9°	320/21 3°	310/23 -10°	330/37 -22°	330/51 -38°	320/44 -47°	300/60 -49°
FWA	used from 398 nm out; 43 nm from the line	350/9	350/24 15°	360/25 9°	360/29 4°	350/31 -10°	340/39 -22°	330/40 -37°	320/38 -43°	320/48 -48°
CMH	used from 548 nm out; 32 nm from the line	340/14	320/13 12°	350/12 8°	360/10 2°	350/27 -10°	340/20 -22°	320/31 -35°	270/25 -39°	260/32 -48°
CRW	used from 647 nm out; 26 nm from the line	320/16	310/16 12°	320/12 7°	320/12 2°	330/15 -11°	280/11 -22°	230/26 -30°	240/33 -37°	240/37 -47°
ROA	used from 747 nm out; 45 nm from the line	280/9	290/15 12°	290/11 8°	210/6 3°	210/30 -6°	220/46 -19°	210/74 -30°	220/78 -39°	220/64 -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
DLH Duluth, MN	departure	VFR Sky: a broken layer at 12,000 feet	from the south (180°) at 4 knots	10+ mi	12,000 ft	1,427 ft	7:55 pm CDT (00:55 UTC)
OLG Solon Springs, WI	30 nm out, 12 nm southwest of the line	VFR	from the north-northeast (020°) at 3 knots	10+ mi	none	1,102 ft	01:15 UTC
CWA Mosinee, WI	159 nm out, 10 nm southwest of the line, tower	VFR	from the south (180°) at 6 knots	10+ mi	none	1,277 ft	00:50 UTC
ATW Appleton, WI	219 nm out, 6 nm northeast of the line, tower	VFR Sky: scattered clouds at 12,000 feet	from the south-southwest (200°) at 6 knots	10+ mi	none	918 ft	00:45 UTC
SBM Sheboygan, WI	259 nm out, 7 nm northeast of the line	VFR	from the south (180°) at 11 knots	10+ mi	none	755 ft	14:53 UTC
EKM Elkhart, IN	408 nm out, 12 nm southwest of the line, tower	marginal VFR Weather: mist	calm	4 mi	none	777 ft	23:35 UTC
FWA Fort Wayne, IN	468 nm out, 13 nm west of the line, tower	VFR Sky: a few clouds at 1,800 feet, a few clouds at 25,000 feet	calm	10+ mi	none	814 ft	00:54 UTC
TZR Columbus, OH	577 nm out, 20 nm northeast of the line, tower	IFR Sky: a broken layer at 700 feet, overcast at 1,900 feet	from the northwest (310°) at 4 knots	10+ mi	700 ft	904 ft	01:15 UTC
HTS Huntington, WV	667 nm out, 18 nm west of the line, tower	IFR Sky: overcast at 700 feet Weather: mist	from the west-northwest (300°) at 6 knots	1 mi	700 ft	828 ft	00:51 UTC
CRW Charleston, WV	687 nm out, 20 nm northeast of the line, tower	IFR Sky: a broken layer at 700 feet, overcast at 1,500 feet Weather: mist	variable at 6 knots	1 mi	700 ft	947 ft	00:54 UTC
PSK Dublin, VA	777 nm out, 9 nm northeast of the line	reported, no category	from the west (270°) at 12 knots, gusting to 17	10+ mi	none	2,104 ft	23:35 UTC
GSO Greensboro, NC	destination	VFR Sky: a broken layer at 6,000 feet	from the southwest (230°) at 8 knots	10+ mi	6,000 ft	925 ft	8:54 pm EDT (00:54 UTC)

The highest airport on this list sits at 2,104 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, 2:55 am EDT (06:55 UTC)

Wind from the west at 7 knots, visibility more than 6 miles, a broken layer at 4,000 feet VFR

The whole forecast for GSO

From Sun 8:00 pm EDT (00:00 UTC): wind from the southwest at 10 knots, visibility more than 6 miles, a broken layer at 2,500 feet
From Sun 11:00 pm EDT (03:00 UTC): wind from the west at 7 knots, visibility more than 6 miles, a broken layer at 4,000 feet
From Mon 10:00 am EDT (14:00 UTC): wind from the north-northwest at 12 knots, gusting to 22, visibility more than 6 miles, scattered clouds at 2,500 feet, a broken layer at 5,000 feet

The forecast for DLH, the departure

From Sun 7:00 pm CDT (00:00 UTC): wind light and variable, visibility more than 6 miles, a broken layer at 12,000 feet
From Mon 12:00 am CDT (05:00 UTC): wind from the east at 11 knots, gusting to 20, visibility more than 6 miles, overcast at 1,200 feet
From Mon 4:00 am CDT (09:00 UTC): wind from the east at 15 knots, gusting to 22, visibility more than 6 miles, overcast at 600 feet
From Mon 6:00 am CDT (11:00 UTC): wind from the east at 16 knots, gusting to 24, visibility 4 miles, mist, overcast at 300 feet
From Mon 12:00 pm CDT (17:00 UTC): wind from the east-northeast at 15 knots, gusting to 25, visibility more than 6 miles, overcast at 300 feet
From Mon 5:00 pm CDT (22:00 UTC): wind from the east-northeast at 15 knots, gusting to 25, visibility 6 miles, light rain showers, overcast at 400 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 DLH 6:27 pm CDT (23:27 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 before sunrise there (7:23 am EDT (11:23 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 upper Mississippi valley · loop National Weather Service

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

Radar now, the Northeast · 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: Duluth International, Piedmont Triad International.