Denver International to Houghton County Memorial DEN → CMX
828 nautical miles (952 statute miles) northeast on a straight line, true course 053°, about 045° magnetic at the departure end (variation 8E). At 120 knots that is 4 h 46 min at the quickest height in today's winds (39,000 ft, a 54-knot tailwind), arriving about 12:56 pm EDT (16:56 UTC). Right now DEN is VFR, wind from the south (190°) at 13 knots; CMX is low IFR, wind from the east-northeast (060°) at 9 knots, gusting to 17. 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
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Over the first 70 nm of the route.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Over the first 10 nm of the route.
- AIRMET TANGO 1W: 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 20 to 20 nm out.
- AIRMET TANGO 1W: 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, 150 nm along the route.
- 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 last 648 nm of 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). Near the route, 329 nm along the route.
- AIRMET ZULU 3C: moderate icing from 13,000 ft to 24,000 ft. Over the last 60 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 DEN.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- UAL1735 at 19,000 ft, 44 nm southwest, 5:50 am MDT (11:50 UTC): light chop turbulence, wind 237° at 58 knots. At the departure end, 44 nm southwest of the line.
as filed, and in English
ARP UAL1735 3925N 10525W 1150 F190 237/058KT TB INTMT LGT CHOP IC
- Report
- a routine report filed through ARP
- B38M at 21,000 ft, 38 nm west, 5:24 am MDT (11:24 UTC): light to moderate chop turbulence, remarks: during the climb zdvwc. At the departure end, 38 nm west of the line.
as filed, and in English
DEN UA /OV DEN277039/TM 1124/FL210/TP B38M/TB LGT-MOD CHOP BLO 180 NEG ABV 180/RM DURC. ZDVWC
- Report
- a routine report filed through DEN
- Where
- 39 nm west (277°) of DEN
- Time
- 11:24 UTC
- Height
- at 21,000 ft
- Aircraft
- B38M
- Turbulence
- light to moderate chop below 18,000 ft no above 18,000 ft
- Remarks
- during the climb zdvwc
- B763 at 23,000 ft, 36 nm west, 4:26 am MDT (10:26 UTC): light chop turbulence, remarks: zdvwc. At the departure end, 36 nm west of the line.
as filed, and in English
DEN UA /OV DEN278037/TM 1026/FL230/TP B763/TB OCNL LGT CHOP/RM ZDVWC
- Report
- a routine report filed through DEN
- Where
- 37 nm west (278°) of DEN
- Time
- 10:26 UTC
- Height
- at 23,000 ft
- Aircraft
- B763
- Turbulence
- occasional light chop
- Remarks
- zdvwc
- E75L at 20,000 ft, 25 nm northwest, 4:35 am MDT (10:35 UTC): light to moderate turbulence above 20,000 ft. 618 nm along the route, 25 nm northwest of the line.
as filed, and in English
JMR UA /OV JMR/TM 1035/FL200/TP E75L/TB CONS LGT OCNL MOD 200
- Report
- a routine report filed through JMR
- Where
- over JMR
- Time
- 10:35 UTC
- Height
- at 20,000 ft
- Aircraft
- E75L
- Turbulence
- continuous light occasional moderate at 20,000 ft
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 7 forecast points nearest it (DEN, BFF, ONL, FSD, AXN, MSP, DLH). 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 | 150° at 7 kt | 0 | 120 kt | 6 h 54 min | 3:04 pm EDT (19:04 UTC) | |
| 5,500 ft | 250° at 17 kt | −16 kt | 22 °C | 136 kt | 6 h 05 min | 2:15 pm EDT (18:15 UTC) |
| 7,500 ft | 250° at 22 kt | −22 kt | 15 °C | 142 kt | 5 h 50 min | 2:00 pm EDT (18:00 UTC) |
| 9,500 ft | 240° at 26 kt | −26 kt | 11 °C | 146 kt | 5 h 40 min | 1:50 pm EDT (17:50 UTC) |
| 11,500 ft | 240° at 27 kt | −27 kt | 6 °C | 147 kt | 5 h 38 min | 1:48 pm EDT (17:48 UTC) |
| 13,500 ft | 240° at 28 kt | −28 kt | 2 °C | 148 kt | 5 h 36 min | 1:46 pm EDT (17:46 UTC) |
| 15,500 ft | 240° at 28 kt | −28 kt | -3 °C | 148 kt | 5 h 36 min | 1:46 pm EDT (17:46 UTC) |
| 17,500 ft | 240° at 29 kt | −29 kt | -9 °C | 149 kt | 5 h 33 min | 1:43 pm EDT (17:43 UTC) |
| 18,000 ft FL180 | 250° at 29 kt | −29 kt | -10 °C | 149 kt | 5 h 33 min | 1:43 pm EDT (17:43 UTC) |
| 24,000 ft FL240 | 250° at 31 kt | −32 kt | -22 °C | 152 kt | 5 h 27 min | 1:37 pm EDT (17:37 UTC) |
| 30,000 ft FL300 | 260° at 39 kt | −37 kt | -35 °C | 157 kt | 5 h 16 min | 1:26 pm EDT (17:26 UTC) |
| 34,000 ft FL340 | 260° at 49 kt | −47 kt | -39 °C | 167 kt | 4 h 57 min | 1:07 pm EDT (17:07 UTC) |
| 39,000 ft FL390 | 260° at 58 kt | −54 kt | -47 °C | 174 kt | 4 h 46 min | 12:56 pm EDT (16:56 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| DEN | used from 0 nm out; 25 nm from the line | 270/24 11° | 230/13 5° | 230/48 -8° | 230/46 -20° | 230/63 -30° | 240/78 -36° | 240/78 -48° | ||
| BFF | used from 100 nm out; 68 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 199 nm out; 91 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° | |
| FSD | used from 349 nm out; 49 nm from the line | 210/20 | 230/23 21° | 220/25 14° | 230/30 5° | 230/26 -9° | 240/30 -21° | 270/33 -36° | 260/47 -37° | 270/58 -47° |
| AXN | used from 499 nm out; 70 nm from the line | 110/6 | 260/10 16° | 240/17 12° | 250/20 5° | 260/29 -10° | 260/35 -22° | 260/29 -38° | 270/48 -41° | 270/61 -48° |
| MSP | used from 548 nm out; 33 nm from the line | 250/12 | 250/17 17° | 240/26 12° | 250/26 5° | 280/26 -9° | 280/32 -22° | 270/37 -38° | 280/47 -41° | 280/55 -48° |
| DLH | used from 648 nm out; 54 nm from the line | 090/31 | 250/7 14° | 250/26 11° | 250/36 4° | 280/36 -11° | 290/35 -22° | 300/39 -38° | 280/41 -44° | 280/66 -49° |
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 |
|---|---|---|---|---|---|---|---|
| DEN Denver, CO | departure | VFR Sky: a few clouds at 22,000 feet | from the south (190°) at 13 knots | 10+ mi | none | 5,433 ft | 5:53 am MDT (11:53 UTC) |
| FMM Fort Morgan, CO | 50 nm out, 2 nm south of the line | VFR | from the west-southwest (250°) at 5 knots | 10+ mi | none | 4,595 ft | 11:55 UTC |
| CNP Chappell, NE | 120 nm out, 5 nm east of the line | no report just now | 3,681 ft | ||||
| TIF Thedford, NE | 229 nm out, 9 nm south of the line | low IFR Sky: overcast at 300 feet Weather: mist | from the north (350°) at 8 knots | 0.75 mi | 300 ft | 2,925 ft | 11:55 UTC |
| RBE Bassett, NE | 279 nm out, 4 nm east of the line | no report just now | 2,349 ft | ||||
| AGZ Wagner, SD | 349 nm out, 9 nm south of the line | low IFR Sky: overcast at 300 feet Weather: drizzle, fog | from the north (350°) at 9 knots | 0.5 mi | 300 ft | 1,477 ft | 11:55 UTC |
| FSD Sioux Falls, SD | 419 nm out, 19 nm southeast of the line, tower | VFR Sky: a few clouds at 10,000 feet, scattered clouds at 25,000 feet | from the northeast (040°) at 5 knots | 10+ mi | none | 1,430 ft | 11:56 UTC |
| STC St Cloud, MN | 578 nm out, 23 nm northwest of the line, tower | VFR | calm | 10+ mi | none | 1,030 ft | 11:53 UTC |
| ANE Minneapolis, MN | 598 nm out, 16 nm southeast of the line, tower | VFR | from the northwest (310°) at 5 knots | 10+ mi | none | 912 ft | 11:58 UTC |
| HYR Hayward, WI | 688 nm out, 5 nm southeast of the line | IFR Sky: overcast at 700 feet | from the northeast (040°) at 11 knots | 10+ mi | 700 ft | 1,215 ft | 11:53 UTC |
| OGM Ontonagon, MI | 788 nm out, 2 nm south of the line | no report just now | 665 ft | ||||
| CMX Hancock, MI | destination | low IFR Sky: a broken layer at 400 feet, a broken layer at 1,100 feet, overcast at 7,000 feet Weather: light rain | from the east-northeast (060°) at 9 knots, gusting to 17 | 10+ mi | 400 ft | 1,095 ft | 8:03 am EDT (12:03 UTC) |
The highest airport on this list sits at 5,433 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At CMX when you get there the forecast at the estimated arrival, 12:56 pm EDT (16:56 UTC)
Wind from the east-northeast at 12 knots, visibility more than 6 miles, overcast at 700 feet IFR
The whole forecast for CMX
- From Mon 8:00 am EDT (12:00 UTC): wind from the east-northeast at 12 knots, visibility more than 6 miles, overcast at 700 feet
- 30% chance between Mon 8:00 am EDT (12:00 UTC) and 11:00 am EDT (15:00 UTC): light rain showers
- From Mon 2:00 pm EDT (18:00 UTC): wind from the east at 15 knots, visibility more than 6 miles, overcast at 600 feet
- 30% chance between Mon 2:00 pm EDT (18:00 UTC) and 8:00 pm EDT (00:00 UTC): visibility 5 miles, light rain showers, overcast at 400 feet
- From Mon 11:00 pm EDT (03:00 UTC): wind from the east at 14 knots, visibility 4 miles, light rain showers, mist, overcast at 400 feet
- From Tue 6:00 am EDT (10:00 UTC): wind from the northeast at 11 knots, visibility 4 miles, mist, overcast at 300 feet
- 30% chance between Tue 6:00 am EDT (10:00 UTC) and 7:00 am EDT (11:00 UTC): light rain showers
The forecast for DEN, the departure
- From Mon 6:00 am MDT (12:00 UTC): wind from the south-southwest at 15 knots, visibility more than 6 miles, clear skies
- From Mon 10:00 am MDT (16:00 UTC): wind from the southwest at 14 knots, gusting to 21, visibility more than 6 miles, clear skies
- From Mon 7:00 pm MDT (01:00 UTC): wind from the south at 9 knots, visibility more than 6 miles, clear skies
- From Mon 11:00 pm MDT (05:00 UTC): wind from the north at 10 knots, visibility more than 6 miles, a few clouds at 2,000 feet, scattered clouds at 4,000 feet
- From Tue 4:00 am MDT (10:00 UTC): wind from the north-northeast at 8 knots, visibility more than 6 miles, a broken layer at 2,000 feet
- From Tue 10:00 am MDT (16:00 UTC): wind from the northeast at 7 knots, visibility more than 6 miles, a few clouds at 2,000 feet, a broken layer at 4,000 feet
Temporary flight restrictions on the line or within 25 nm of it
- 6/6656 ANOKA, MN, Monday, October 5, 2026 through Monday, October 19, 2026 Local 10 nm from the route, 588 nm along the route · security · until 19 October · ZMP
Daylight
Sunset at DEN 6:22 pm MDT (00:22 UTC), at CMX 7:12 pm EDT (23:12 UTC) (civil twilight ends 7:43 pm EDT (23:43 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: Denver International, Houghton County Memorial.