Gerald R Ford International to Duluth International GRR → DLH
370 nautical miles (426 statute miles) northwest on a straight line, true course 312°, about 318° magnetic at the departure end (variation 6W). At 120 knots that is 3 h 05 min at the quickest height in today's winds (4,500 ft, no wind along the track), arriving about 12:18 pm CDT (17:18 UTC). Right now GRR is VFR, wind from the south (190°) at 4 knots; DLH is low IFR, wind from the east (080°) at 15 knots, gusting to 25. 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 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 97 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 GRR.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- E170 at 28,000 ft, 6 nm south, 9:10 am EDT (13:10 UTC): moderate chop turbulence. At the departure end, 6 nm south of the line.
as filed, and in English
GRR UA /OV VIO/TM 1310/FL280/TP E170/TB OCNL MOD CHOP
- Report
- a routine report filed through GRR
- Where
- over VIO
- Time
- 13:10 UTC
- Height
- at 28,000 ft
- Aircraft
- E170
- Turbulence
- occasional moderate chop
- E170 at 15,000 ft, 48 nm southwest, 7:56 am EDT (11:56 UTC): moderate chop turbulence. 195 nm along the route, 48 nm southwest of the line.
as filed, and in English
Y50 UA /OV Y50330025/TM 1156/FL150/TP E170/TB MOD CHOP
- Report
- a routine report filed through Y50
- Where
- 25 nm northwest (330°) of Y50
- Time
- 11:56 UTC
- Height
- at 15,000 ft
- Aircraft
- E170
- Turbulence
- moderate chop
- B752 at 32,000 ft, 36 nm southwest, 9:03 am EDT (13:03 UTC): light chop turbulence. At the departure end, 36 nm southwest of the line.
as filed, and in English
BIV UA /OV PMM/TM 1303/FL320/TP B752/TB CONS LGT CHOP
- Report
- a routine report filed through BIV
- Where
- over PMM
- Time
- 13:03 UTC
- Height
- at 32,000 ft
- Aircraft
- B752
- Turbulence
- continuous light chop
- B39M at 34,000 ft, 42 nm southwest, 10:01 am EDT (14:01 UTC): no turbulence. 29 nm along the route, 42 nm southwest of the line.
as filed, and in English
BIV UA /OV PMM300030/TM 1401/FL340/TP B39M/TB NEG
- Report
- a routine report filed through BIV
- Where
- 30 nm northwest (300°) of PMM
- Time
- 14:01 UTC
- Height
- at 34,000 ft
- Aircraft
- B39M
- Turbulence
- none
- E545 at 1,700 ft, 2 nm south, 9:44 am EDT (13:44 UTC): a routine report with nothing remarked on. At the destination end, 2 nm south of the line.
as filed, and in English
DLH UA /OV DLH/TM 1344/FL017/TP E545/SK B017 T 035
- Report
- a routine report filed through DLH
- Where
- over DLH
- Time
- 13:44 UTC
- Height
- at 1,700 ft
- Aircraft
- E545
- Sky
- B017 T at 3,500 ft
- E75L at 300 ft, 2 nm south, 9:12 am EDT (13:12 UTC): a routine report with nothing remarked on. At the destination end, 2 nm south of the line.
as filed, and in English
DLH UA /OV DLH/TM 1312/FL003/TP E75L/SK B003 T037
- Report
- a routine report filed through DLH
- Where
- over DLH
- Time
- 13:12 UTC
- Height
- at 300 ft
- Aircraft
- E75L
- Sky
- B003 T037
- CRJ9 at 1,600 ft, 2 nm south, 8:26 am EDT (12:26 UTC): overcast from 1,600 ft to 3,500 ft, 14 °C, remarks: during the climb. At the destination end, 2 nm south of the line.
as filed, and in English
DLH UA /OV DLH/TM 1226/FL016/TP CRJ9/SK 016OVC035/TA 14/RM DURC
- Report
- a routine report filed through DLH
- Where
- over DLH
- Time
- 12:26 UTC
- Height
- at 1,600 ft
- Aircraft
- CRJ9
- Sky
- 016OVC035
- Temperature
- 14 °C
- Remarks
- during the climb
- BE20 at 1,600 ft, 8 nm north, 7:45 am EDT (11:45 UTC): a routine report with nothing remarked on. At the destination end, 8 nm north of the line.
as filed, and in English
DLH UA /OV 10N DLH /TM 1145/FL016/TP BE20/SK B016 T035
- Report
- a routine report filed through DLH
- Where
- 10N dlh
- Time
- 11:45 UTC
- Height
- at 1,600 ft
- Aircraft
- BE20
- Sky
- B016 T035
Winds aloft along the route, and the time en route the forecast for use 14:00–21:00 UTC · at 120 knots true airspeed
The westbound cruising heights for this course (VFR: even 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 (MKG, GRB, 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 |
|---|---|---|---|---|---|---|
| 4,500 ft | 220° at 12 kt | 0 | 120 kt | 3 h 05 min | 12:18 pm CDT (17:18 UTC) | |
| 6,500 ft | 240° at 22 kt | +7 kt | 14 °C | 113 kt | 3 h 16 min | 12:29 pm CDT (17:29 UTC) |
| 8,500 ft | 260° at 23 kt | +13 kt | 11 °C | 107 kt | 3 h 27 min | 12:40 pm CDT (17:40 UTC) |
| 10,500 ft | 260° at 23 kt | +16 kt | 8 °C | 104 kt | 3 h 33 min | 12:46 pm CDT (17:46 UTC) |
| 12,500 ft | 270° at 24 kt | +18 kt | 4 °C | 102 kt | 3 h 38 min | 12:51 pm CDT (17:51 UTC) |
| 14,500 ft | 270° at 27 kt | +20 kt | -1 °C | 100 kt | 3 h 42 min | 12:55 pm CDT (17:55 UTC) |
| 16,500 ft | 270° at 29 kt | +22 kt | -6 °C | 98 kt | 3 h 47 min | 1:00 pm CDT (18:00 UTC) |
| 18,000 ft FL180 | 270° at 32 kt | +24 kt | -10 °C | 96 kt | 3 h 51 min | 1:04 pm CDT (18:04 UTC) |
| 24,000 ft FL240 | 270° at 35 kt | +28 kt | -22 °C | 92 kt | 4 h 01 min | 1:14 pm CDT (18:14 UTC) |
| 30,000 ft FL300 | 260° at 42 kt | +29 kt | -37 °C | 91 kt | 4 h 04 min | 1:17 pm CDT (18:17 UTC) |
| 34,000 ft FL340 | 280° at 46 kt | +41 kt | -41 °C | 79 kt | 4 h 41 min | 1:54 pm CDT (18:54 UTC) |
| 39,000 ft FL390 | 290° at 63 kt | +61 kt | -48 °C | 59 kt | 6 h 16 min | 3:29 pm CDT (20:29 UTC) |
Based on data from the 12th at 12:00 UTC; valid on the 12th at 18:00 UTC for use 14:00 to 21:00 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| MKG | used from 0 nm out; 13 nm from the line | 240/27 | 240/26 15° | 270/27 9° | 280/27 5° | 280/28 -9° | 280/32 -22° | 270/41 -38° | 290/44 -41° | 300/60 -48° |
| GRB | used from 97 nm out; 27 nm from the line | 260/10 | 240/27 16° | 260/31 10° | 270/25 5° | 280/31 -10° | 280/35 -22° | 270/46 -37° | 290/43 -40° | 300/64 -48° |
| DLH | used from 243 nm out; 102 nm from the line | 090/34 | 210/13 14° | 240/14 11° | 250/20 4° | 250/38 -10° | 260/39 -22° | 250/41 -37° | 270/53 -41° | 280/68 -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 |
|---|---|---|---|---|---|---|---|
| GRR Grand Rapids, MI | departure | VFR Sky: a broken layer at 25,000 feet | from the south (190°) at 4 knots | 10+ mi | 25,000 ft | 793 ft | 9:53 am EDT (13:53 UTC) |
| MKG Muskegon, MI | 39 nm out, 9 nm south of the line, tower | VFR Sky: a broken layer at 25,000 feet | from the south (190°) at 10 knots, gusting to 18 | 10+ mi | 25,000 ft | 628 ft | 13:55 UTC |
| LDM Ludington, MI | 68 nm out, 23 nm northeast of the line | VFR | from the south (180°) at 8 knots | 10+ mi | none | 646 ft | 13:55 UTC |
| MTW Manitowoc, WI | 117 nm out, 7 nm west of the line | VFR | from the southwest (230°) at 8 knots | 10+ mi | none | 650 ft | 13:56 UTC |
| GRB Green Bay, WI | 146 nm out, 4 nm west of the line, tower | VFR | from the south-southwest (200°) at 5 knots | 10+ mi | none | 695 ft | 13:53 UTC |
| EZS Shawano, WI | 175 nm out, 1 nm south of the line | VFR | from the southwest (230°) at 3 knots | 10+ mi | none | 813 ft | 13:55 UTC |
| TKV Tomahawk, WI | 243 nm out, 4 nm south of the line | VFR | calm | 10+ mi | none | 1,486 ft | 13:55 UTC |
| PKF Park Falls, WI | 282 nm out, 4 nm east of the line | no report just now | 1,501 ft | ||||
| ASX Ashland, WI | 321 nm out, 19 nm northeast of the line | IFR Sky: overcast at 700 feet Weather: light rain | from the northeast (050°) at 15 knots, gusting to 26 | 10+ mi | 700 ft | 826 ft | 13:53 UTC |
| OLG Solon Springs, WI | 341 nm out, 16 nm southwest of the line | IFR Sky: overcast at 500 feet | from the northeast (050°) at 13 knots, gusting to 17 | 10+ mi | 500 ft | 1,102 ft | 13:55 UTC |
| DLH Duluth, MN | destination | low IFR Sky: overcast at 300 feet Weather: light drizzle, mist | from the east (080°) at 15 knots, gusting to 25 | 0.75 mi | 300 ft | 1,427 ft | 8:55 am CDT (13:55 UTC) |
The highest airport on this list sits at 1,501 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At DLH when you get there the forecast at the estimated arrival, 12:18 pm CDT (17:18 UTC)
Wind from the east at 15 knots, gusting to 26, visibility 1½ miles, light drizzle, mist, overcast at 400 feet low IFR
The whole forecast for DLH
- From Mon 9:00 am CDT (14:00 UTC): wind from the east at 15 knots, gusting to 26, visibility 1½ miles, light drizzle, mist, overcast at 400 feet
- From Mon 5:00 pm CDT (22:00 UTC): wind from the east-northeast at 16 knots, gusting to 27, visibility 4 miles, light rain showers, mist, overcast at 200 feet
- 30% chance between Mon 5:00 pm CDT (22:00 UTC) and 7:00 pm CDT (00:00 UTC): visibility 3 miles, light thunderstorms with rain, a broken layer at 400 feet (thunderheads), overcast at 800 feet
- From Mon 11:00 pm CDT (04:00 UTC): wind from the east-northeast at 14 knots, gusting to 23, visibility more than 6 miles, showers nearby, overcast at 300 feet
- From Tue 1:00 am CDT (06:00 UTC): wind from the northeast at 11 knots, gusting to 18, visibility more than 6 miles, overcast at 300 feet
- From Tue 6:00 am CDT (11:00 UTC): wind from the north at 5 knots, visibility more than 6 miles, overcast at 500 feet
The forecast for GRR, the departure
- From Mon 8:00 am EDT (12:00 UTC): wind from the south at 4 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
- From Mon 1:00 pm EDT (17:00 UTC): wind from the southwest at 12 knots, gusting to 20, visibility more than 6 miles, a broken layer at 20,000 feet
- From Mon 6:00 pm EDT (22:00 UTC): wind from the south-southwest at 10 knots, visibility more than 6 miles, scattered clouds at 8,000 feet
- From Mon 11:00 pm EDT (03:00 UTC): wind from the south at 8 knots, visibility 4 miles, light rain showers, mist, scattered clouds at 5,000 feet, overcast at 8,000 feet
- 30% chance between Mon 11:00 pm EDT (03:00 UTC) and 3:00 am EDT (07:00 UTC): visibility 2 miles, light thunderstorms with rain, mist, overcast at 3,500 feet (thunderheads)
- From Tue 3:00 am EDT (07:00 UTC): wind from the south-southwest at 8 knots, visibility more than 6 miles, scattered clouds at 8,000 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 GRR 7:04 pm EDT (23:04 UTC), at DLH 6:27 pm CDT (23:27 UTC) (civil twilight ends 6:58 pm CDT (23:58 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: Gerald R Ford International, Duluth International.