Plan a flight · Mon 2:51 am EDT (06:51 UTC)

Houghton County Memorial to Fort Wayne International CMX → FWA

398 nautical miles (458 statute miles) south on a straight line, true course 158°, about 160° magnetic at the departure end (variation 2W). At 120 knots that is 2 h 16 min at the quickest height in today's winds (39,000 ft, a 55-knot tailwind), arriving about 5:07 am EDT (09:07 UTC), after sunset at the destination. Right now CMX is VFR, wind from the east-northeast (070°) at 6 knots; FWA is marginal VFR, wind from the south (180°) at 4 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: 3 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 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, 80 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 last 119 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 CMX.

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

LJ45 at 10,000 ft, 7 nm west, 12:31 am EDT (04:31 UTC): no turbulence, clear, remarks: ground fog at fwa FV10SM on final runway 14. 378 nm along the route, 7 nm west of the line.
as filed, and in English
```
FWA UA /OV OLK/TM 0431/FL100/TP LJ45/SK CLR/TB SMOOTH/RM GROUND FOG AT FWA. FV10SM ON FINAL RY 14
```
Report
a routine report filed through FWA
Where
over OLK
Time
04:31 UTC
Height
at 10,000 ft
Aircraft
LJ45
Sky
clear
Turbulence
smooth
Remarks
ground fog at fwa FV10SM on final runway 14

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 3 forecast points nearest it (GRB, MKG, FWA). 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	260° at 26 kt	−5 kt		125 kt	3 h 11 min	6:02 am EDT (10:02 UTC)
5,500 ft	280° at 20 kt	−9 kt		129 kt	3 h 05 min	5:56 am EDT (09:56 UTC)
7,500 ft	290° at 16 kt	−9 kt	12 °C	129 kt	3 h 05 min	5:56 am EDT (09:56 UTC)
9,500 ft	290° at 12 kt	−7 kt	8 °C	127 kt	3 h 08 min	5:59 am EDT (09:59 UTC)
11,500 ft	260° at 11 kt	−3 kt	5 °C	123 kt	3 h 14 min	6:05 am EDT (10:05 UTC)
13,500 ft	270° at 14 kt	−6 kt	0 °C	126 kt	3 h 10 min	6:01 am EDT (10:01 UTC)
15,500 ft	280° at 19 kt	−11 kt	-4 °C	131 kt	3 h 02 min	5:53 am EDT (09:53 UTC)
17,500 ft	290° at 24 kt	−16 kt	-8 °C	136 kt	2 h 56 min	5:47 am EDT (09:47 UTC)
18,000 ft FL180	290° at 26 kt	−17 kt	-9 °C	137 kt	2 h 54 min	5:45 am EDT (09:45 UTC)
24,000 ft FL240	290° at 30 kt	−21 kt	-20 °C	141 kt	2 h 49 min	5:40 am EDT (09:40 UTC)
30,000 ft FL300	310° at 44 kt	−37 kt	-36 °C	157 kt	2 h 32 min	5:23 am EDT (09:23 UTC)
34,000 ft FL340	310° at 54 kt	−47 kt	-45 °C	167 kt	2 h 23 min	5:14 am EDT (09:14 UTC)
39,000 ft FL390	300° at 69 kt	−55 kt	-54 °C	175 kt	2 h 16 min	5:07 am EDT (09:07 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
GRB	used from 0 nm out; 138 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 199 nm out; 35 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 348 nm out; 25 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°

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
CMX Hancock, MI	departure	VFR Sky: a few clouds at 800 feet	from the east-northeast (070°) at 6 knots	10+ mi	none	1,095 ft	2:45 am EDT (06:45 UTC)
SAW Marquette, MI	60 nm out, 24 nm east of the line, tower	VFR	from the east-northeast (060°) at 5 knots	10+ mi	none	1,204 ft	06:38 UTC
MNM Menominee, MI	129 nm out, 13 nm west of the line	VFR	from the southwest (230°) at 7 knots	10+ mi	none	624 ft	05:57 UTC
SUE Sturgeon Bay, WI	149 nm out, 11 nm west of the line	VFR	from the southwest (230°) at 9 knots	10+ mi	none	724 ft	05:57 UTC
LDM Ludington, MI	209 nm out, 12 nm east of the line	VFR	from the south-southwest (210°) at 9 knots	10+ mi	none	646 ft	06:35 UTC
MKG Muskegon, MI	259 nm out, 2 nm northeast of the line, tower	reported, no category	from the south (180°) at 7 knots	10+ mi	none	628 ft	05:55 UTC
BIV Holland, MI	288 nm out, 5 nm northwest of the line	VFR	from the south (180°) at 4 knots	10+ mi	none	697 ft	05:53 UTC
AZO Kalamazoo, MI	318 nm out, 11 nm east of the line, tower	marginal VFR Weather: mist	from the south (170°) at 4 knots	5 mi	none	873 ft	05:53 UTC
GWB Auburn, IN	378 nm out, 13 nm east of the line	low IFR Sky: a broken layer at 200 feet Weather: fog	calm	0.5 mi	200 ft	880 ft	06:35 UTC
FWA Fort Wayne, IN	destination	marginal VFR Weather: mist, shallow fog	from the south (180°) at 4 knots	5 mi	none	814 ft	1:54 am EDT (05:54 UTC)

The highest airport on this list sits at 1,204 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At FWA when you get there the forecast at the estimated arrival, 5:07 am EDT (09:07 UTC)

Wind light and variable, visibility 2 miles, mist, scattered clouds at 1,000 feet IFR

At times between Mon 4:00 am EDT (08:00 UTC) and 7:00 am EDT (11:00 UTC): visibility ½ mile, fog, a broken layer at 500 feet low IFR

The whole forecast for FWA

From Mon 2:00 am EDT (06:00 UTC): wind light and variable, visibility 3 miles, mist, a few clouds at 1,000 feet
From Mon 3:30 am EDT (07:30 UTC): wind light and variable, visibility 2 miles, mist, scattered clouds at 1,000 feet
At times between Mon 4:00 am EDT (08:00 UTC) and 7:00 am EDT (11:00 UTC): visibility ½ mile, fog, a broken layer at 500 feet
From Mon 9:00 am EDT (13:00 UTC): wind from the south-southwest at 11 knots, visibility more than 6 miles, scattered clouds at 25,000 feet

The forecast for CMX, the departure

From Mon 2:00 am EDT (06:00 UTC): wind from the northeast at 7 knots, visibility more than 6 miles, overcast at 20,000 feet
From Mon 5:00 am EDT (09:00 UTC): wind from the northeast at 9 knots, gusting to 19, visibility more than 6 miles, overcast at 2,500 feet
From Mon 8:00 am EDT (12:00 UTC): wind from the east-northeast at 12 knots, gusting to 22, visibility more than 6 miles, light rain showers, overcast at 800 feet
From Mon 4:00 pm EDT (20:00 UTC): wind from the east-northeast at 12 knots, gusting to 22, visibility more than 6 miles, overcast at 500 feet
From Mon 10:00 pm EDT (02:00 UTC): wind from the east-northeast at 12 knots, gusting to 22, visibility more than 6 miles, light rain showers, overcast at 500 feet

Temporary flight restrictions on the line or within 25 nm of it

6/8665 9NM E HERMAN, MI, Friday, October 9, 2026 through Tuesday, October 13, 2026 UTC on the route, 30 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 13 October · ZMP
6/8771 NW NEGAUNEE, MI, Saturday, October 10, 2026 through Thursday, October 15, 2026 UTC 16 nm from the route, 50 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 15 October · ZMP

Daylight

Sunset at CMX 7:12 pm EDT (23:12 UTC), at FWA 7:05 pm EDT (23:05 UTC) (civil twilight ends 7:32 pm EDT (23:32 UTC)). At 120 knots the arrival at FWA is before sunrise there (7:48 am EDT (11:48 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 central Great Lakes · 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: Houghton County Memorial, Fort Wayne International.