Duluth International to John Glenn Columbus International DLH → CMH
577 nautical miles (664 statute miles) southeast on a straight line, true course 132°, about 133° magnetic at the departure end (variation 1W). At 120 knots that is 3 h 13 min at the quickest height in today's winds (39,000 ft, a 59-knot tailwind), arriving about 7:15 am EDT (11:15 UTC), after sunset at the destination. Right now DLH is marginal VFR, wind from the east (090°) at 12 knots; CMH is marginal VFR, wind from the west-northwest (290°) 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 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the first 30 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). Over the route from 129 to 259 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, fog). Over the last 149 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
- B738 at 1,700 ft, 33 nm northeast, 1:20 am CDT (06:20 UTC): overcast from 1,700 ft to 2,000 ft, remarks: during the descent. 477 nm along the route, 33 nm northeast of the line.
as filed, and in English
TOL UA /OV KTOL/TM 0620/FL017/TP B738/SK OVC017-TOP020/RM DURD
- Report
- a routine report filed through TOL
- Where
- over KTOL
- Time
- 06:20 UTC
- Height
- at 1,700 ft
- Aircraft
- B738
- Sky
- overcast from 1,700 ft, tops 2,000 ft
- Remarks
- during the descent
- B738 at 1,800 ft, 33 nm northeast, 12:18 am CDT (05:18 UTC): overcast from 1,800 ft to 2,700 ft, remarks: during the climb. 477 nm along the route, 33 nm northeast of the line.
as filed, and in English
TOL UA /OV KTOL/TM 0518/FL018/TP B738/SK OVC018-TOP027/RM DURC
- Report
- a routine report filed through TOL
- Where
- over KTOL
- Time
- 05:18 UTC
- Height
- at 1,800 ft
- Aircraft
- B738
- Sky
- overcast from 1,800 ft, tops 2,700 ft
- Remarks
- during the climb
- MD83 climbing, 11 nm south, 12:04 am CDT (05:04 UTC): a routine report with nothing remarked on. At the destination end, 11 nm south of the line.
as filed, and in English
CMH UA /OV LCK/TM 0504/FLDURC/TP MD83/SK B010 T037
- Report
- a routine report filed through CMH
- Where
- over LCK
- Time
- 05:04 UTC
- Height
- during the climb
- Aircraft
- MD83
- Sky
- B010 T037
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 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 5 forecast points nearest it (DLH, GRB, MKG, FWA, CMH). 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 | 270° at 15 kt | −10 kt | 130 kt | 4 h 26 min | 8:28 am EDT (12:28 UTC) | |
| 5,500 ft | 280° at 17 kt | −14 kt | 134 kt | 4 h 18 min | 8:20 am EDT (12:20 UTC) | |
| 7,500 ft | 290° at 16 kt | −15 kt | 12 °C | 135 kt | 4 h 16 min | 8:18 am EDT (12:18 UTC) |
| 9,500 ft | 290° at 14 kt | −13 kt | 8 °C | 133 kt | 4 h 20 min | 8:22 am EDT (12:22 UTC) |
| 11,500 ft | 280° at 13 kt | −11 kt | 4 °C | 131 kt | 4 h 24 min | 8:26 am EDT (12:26 UTC) |
| 13,500 ft | 280° at 17 kt | −14 kt | 0 °C | 134 kt | 4 h 18 min | 8:20 am EDT (12:20 UTC) |
| 15,500 ft | 290° at 21 kt | −19 kt | -4 °C | 139 kt | 4 h 09 min | 8:11 am EDT (12:11 UTC) |
| 17,500 ft | 290° at 26 kt | −24 kt | -8 °C | 144 kt | 4 h | 8:02 am EDT (12:02 UTC) |
| 18,000 ft FL180 | 290° at 27 kt | −25 kt | -9 °C | 145 kt | 3 h 59 min | 8:01 am EDT (12:01 UTC) |
| 24,000 ft FL240 | 300° at 32 kt | −31 kt | -20 °C | 151 kt | 3 h 49 min | 7:51 am EDT (11:51 UTC) |
| 30,000 ft FL300 | 310° at 42 kt | −42 kt | -36 °C | 162 kt | 3 h 34 min | 7:36 am EDT (11:36 UTC) |
| 34,000 ft FL340 | 310° at 52 kt | −52 kt | -44 °C | 172 kt | 3 h 21 min | 7:23 am EDT (11:23 UTC) |
| 39,000 ft FL390 | 300° at 60 kt | −59 kt | -53 °C | 179 kt | 3 h 13 min | 7:15 am EDT (11:15 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| DLH | used from 0 nm out; 25 nm from the line | 080/28 | 240/21 15° | 250/26 9° | 250/32 3° | 260/42 -11° | 270/40 -21° | 260/43 -36° | 260/46 -46° | 260/65 -54° |
| GRB | used from 99 nm out; 98 nm from the line | 250/36 | 270/23 16° | 270/14 9° | 240/18 4° | 280/26 -9° | 280/29 -20° | 290/42 -36° | 290/51 -45° | 290/72 -55° |
| MKG | used from 298 nm out; 22 nm from the line | 260/22 | 290/16 15° | 300/11 10° | 290/5 3° | 300/26 -9° | 300/32 -20° | 320/48 -36° | 320/61 -45° | 310/74 -53° |
| FWA | used from 398 nm out; 55 nm from the line | 300/17 | 320/20 16° | 330/20 10° | 340/15 3° | 310/27 -8° | 320/37 -20° | 330/52 -36° | 330/65 -43° | 330/60 -50° |
| CMH | used from 497 nm out; 55 nm from the line | 330/15 | 340/22 14° | 340/24 9° | 340/23 4° | 340/35 -9° | 340/49 -20° | 340/58 -37° | 330/70 -42° | 340/55 -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 |
|---|---|---|---|---|---|---|---|
| DLH Duluth, MN | departure | marginal VFR Sky: a broken layer at 1,200 feet, overcast at 12,000 feet | from the east (090°) at 12 knots | 10+ mi | 1,200 ft | 1,427 ft | 2:55 am CDT (07:55 UTC) |
| OLG Solon Springs, WI | 30 nm out, 13 nm southwest of the line | VFR Sky: scattered clouds at 1,100 feet | from the northeast (040°) at 13 knots, gusting to 17 | 10+ mi | none | 1,102 ft | 07:55 UTC |
| PBH Phillips, WI | 99 nm out, 1 nm southeast of the line | VFR | from the south-southwest (210°) at 4 knots | 10+ mi | none | 1,497 ft | 07:55 UTC |
| CWA Mosinee, WI | 159 nm out, 19 nm southwest of the line, tower | VFR Sky: scattered clouds at 19,000 feet, overcast at 21,000 feet | from the south (170°) at 8 knots | 10+ mi | 21,000 ft | 1,277 ft | 07:35 UTC |
| ATW Appleton, WI | 219 nm out, 7 nm southwest of the line, tower | VFR | from the south-southwest (200°) at 8 knots | 10+ mi | none | 918 ft | 07:55 UTC |
| SBM Sheboygan, WI | 259 nm out, 7 nm southwest of the line | VFR | from the southwest (230°) at 8 knots | 10+ mi | none | 755 ft | 07:53 UTC |
| MKG Muskegon, MI | 338 nm out, 19 nm northeast of the line, tower | reported, no category | from the south (190°) at 6 knots | 10+ mi | none | 628 ft | 07:55 UTC |
| AZO Kalamazoo, MI | 398 nm out, 2 nm north of the line, tower | marginal VFR Weather: mist | from the south (180°) at 6 knots | 4 mi | none | 873 ft | 07:53 UTC |
| OEB Coldwater, MI | 428 nm out, 6 nm north of the line | VFR | from the south-southwest (200°) at 4 knots | 8 mi | none | 958 ft | 07:55 UTC |
| DFI Defiance, OH | 467 nm out, 3 nm east of the line | low IFR Sky: sky obscured at 200 feet Weather: fog | from the southwest (230°) at 3 knots | 0.25 mi | 200 ft | 706 ft | 07:53 UTC |
| DLZ Delaware, OH | 557 nm out, 4 nm northeast of the line | IFR Sky: overcast at 900 feet | from the north-northwest (330°) at 6 knots | 10+ mi | 900 ft | 945 ft | 07:55 UTC |
| CMH Columbus, OH | destination | marginal VFR Sky: scattered clouds at 1,000 feet, overcast at 1,400 feet Weather: mist | from the west-northwest (290°) at 6 knots | 5 mi | 1,400 ft | 815 ft | 3:51 am EDT (07:51 UTC) |
The highest airport on this list sits at 1,497 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At CMH when you get there the forecast at the estimated arrival, 7:15 am EDT (11:15 UTC)
Wind from the west at 4 knots, visibility 4 miles, mist, overcast at 800 feet IFR
At times between Mon 6:00 am EDT (10:00 UTC) and 9:00 am EDT (13:00 UTC): visibility 2 miles, mist, scattered clouds at 800 feet IFR
The whole forecast for CMH
- From Mon 2:00 am EDT (06:00 UTC): wind from the west-northwest at 6 knots, visibility more than 6 miles, overcast at 1,200 feet
- From Mon 4:00 am EDT (08:00 UTC): wind from the west at 4 knots, visibility 4 miles, mist, overcast at 800 feet
- At times between Mon 6:00 am EDT (10:00 UTC) and 9:00 am EDT (13:00 UTC): visibility 2 miles, mist, scattered clouds at 800 feet
- From Mon 10:00 am EDT (14:00 UTC): wind from the southwest at 9 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
- From Mon 8:00 pm EDT (00:00 UTC): wind from the south at 5 knots, visibility more than 6 miles, a few clouds at 10,000 feet, scattered clouds at 25,000 feet
The forecast for DLH, the departure
- From Mon 1:00 am CDT (06:00 UTC): wind from the east-northeast at 13 knots, visibility more than 6 miles, overcast at 9,000 feet
- From Mon 4:00 am CDT (09:00 UTC): wind from the east at 15 knots, gusting to 26, visibility more than 6 miles, overcast at 600 feet
- From Mon 7:00 am CDT (12:00 UTC): wind from the east at 16 knots, gusting to 26, visibility more than 6 miles, overcast at 200 feet
- From Mon 7:00 pm CDT (00:00 UTC): wind from the east-northeast at 16 knots, gusting to 27, visibility 2 miles, light rain showers, mist, overcast at 200 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 CMH 6:56 pm EDT (22:56 UTC) (civil twilight ends 7:24 pm EDT (23:24 UTC)). At 120 knots the arrival at CMH is before sunrise there (7:38 am EDT (11:38 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






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, John Glenn Columbus International.
