Grand Forks International to Nashville International GFK → BNA
849 nautical miles (977 statute miles) southeast on a straight line, true course 143°, about 137° magnetic at the departure end (variation 6E). At 120 knots that is 5 h 27 min at the quickest height in today's winds (39,000 ft, a 36-knot tailwind), arriving about 7:31 am CDT (12:31 UTC). 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 120 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 300 to 479 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). Over the last 80 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 GFK.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
Not fetched just now.
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 9 forecast points nearest it (GFK, AXN, MSP, MCW, DBQ, BRL, SPI, EVV, BNA). 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 | 230° at 15 kt | +1 kt | 119 kt | 7 h 08 min | 9:12 am CDT (14:12 UTC) | |
| 5,500 ft | 250° at 19 kt | −4 kt | 124 kt | 6 h 51 min | 8:55 am CDT (13:55 UTC) | |
| 7,500 ft | 260° at 18 kt | −7 kt | 13 °C | 127 kt | 6 h 41 min | 8:45 am CDT (13:45 UTC) |
| 9,500 ft | 260° at 17 kt | −8 kt | 9 °C | 128 kt | 6 h 38 min | 8:42 am CDT (13:42 UTC) |
| 11,500 ft | 260° at 17 kt | −8 kt | 6 °C | 128 kt | 6 h 38 min | 8:42 am CDT (13:42 UTC) |
| 13,500 ft | 260° at 19 kt | −9 kt | 1 °C | 129 kt | 6 h 35 min | 8:39 am CDT (13:39 UTC) |
| 15,500 ft | 270° at 21 kt | −11 kt | -3 °C | 131 kt | 6 h 29 min | 8:33 am CDT (13:33 UTC) |
| 17,500 ft | 270° at 24 kt | −13 kt | -7 °C | 133 kt | 6 h 23 min | 8:27 am CDT (13:27 UTC) |
| 18,000 ft FL180 | 270° at 25 kt | −13 kt | -8 °C | 133 kt | 6 h 23 min | 8:27 am CDT (13:27 UTC) |
| 24,000 ft FL240 | 270° at 29 kt | −18 kt | -20 °C | 138 kt | 6 h 09 min | 8:13 am CDT (13:13 UTC) |
| 30,000 ft FL300 | 270° at 33 kt | −19 kt | -34 °C | 139 kt | 6 h 06 min | 8:10 am CDT (13:10 UTC) |
| 34,000 ft FL340 | 280° at 46 kt | −31 kt | -43 °C | 151 kt | 5 h 37 min | 7:41 am CDT (12:41 UTC) |
| 39,000 ft FL390 | 280° at 50 kt | −36 kt | -51 °C | 156 kt | 5 h 27 min | 7:31 am CDT (12:31 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| GFK | used from 0 nm out; 25 nm from the line | 070/18 | 100/10 9° | 250/11 6° | 250/27 1° | 250/34 -10° | 260/43 -21° | 260/39 -36° | 260/36 -46° | 260/59 -53° |
| AXN | used from 50 nm out; 71 nm from the line | 100/14 | 250/21 14° | 240/24 12° | 240/31 5° | 260/36 -10° | 260/40 -21° | 250/42 -36° | 260/48 -45° | 260/53 -50° |
| MSP | used from 200 nm out; 33 nm from the line | 230/26 | 240/30 17° | 240/24 12° | 250/22 5° | 250/35 -10° | 260/36 -21° | 250/41 -36° | 250/49 -45° | 260/58 -52° |
| MCW | used from 300 nm out; 36 nm from the line | 220/44 | 250/30 17° | 230/14 12° | 240/17 6° | 250/22 -8° | 270/29 -20° | 250/34 -34° | 260/52 -43° | 260/59 -51° |
| DBQ | used from 399 nm out; 36 nm from the line | 230/33 | 250/30 16° | 280/15 9° | 260/15 5° | 260/21 -7° | 260/24 -20° | 250/37 -33° | 270/42 -43° | 280/63 -52° |
| BRL | used from 449 nm out; 42 nm from the line | 230/24 | 240/29 15° | 290/16 10° | 280/15 4° | 260/23 -7° | 260/32 -19° | 260/36 -33° | 280/48 -41° | 280/59 -52° |
| SPI | used from 549 nm out; 12 nm from the line | 220/21 | 250/23 16° | 260/27 9° | 270/14 6° | 270/23 -7° | 270/31 -19° | 270/28 -33° | 290/48 -42° | 300/55 -52° |
| EVV | used from 649 nm out; 59 nm from the line | 280/15 | 290/12 17° | 310/16 10° | 320/13 5° | 310/22 -6° | 320/26 -18° | 320/38 -33° | 310/56 -41° | 320/55 -51° |
| BNA | used from 799 nm out; 25 nm from the line | 310/20 | 340/20 17° | 330/24 10° | 340/22 5° | 330/26 -6° | 340/29 -18° | 330/52 -33° | 320/62 -41° | 340/45 -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 |
|---|---|---|---|---|---|---|---|
| GFK Grand Forks, ND | departure | no report just now | 845 ft | ||||
| CKN Crookston, MN | 20 nm out, 14 nm northeast of the line | no report just now | 896 ft | ||||
| DTL Detroit Lakes, MN | 90 nm out, 5 nm north of the line | no report just now | 1,395 ft | ||||
| FCM Minneapolis, MN | 240 nm out, 16 nm northeast of the line, tower | no report just now | 906 ft | ||||
| RST Rochester, MN | 309 nm out, 19 nm northeast of the line, tower | no report just now | 1,317 ft | ||||
| ALO Waterloo, IA | 379 nm out, 23 nm southwest of the line, tower | no report just now | 873 ft | ||||
| MLI Moline, IL | 479 nm out, 12 nm east of the line, tower | no report just now | 589 ft | ||||
| SPI Springfield, IL | 589 nm out, 9 nm west of the line, tower | no report just now | 597 ft | ||||
| DEC Decatur, IL | 609 nm out, 25 nm northeast of the line, tower | no report just now | 681 ft | ||||
| EVV Evansville, IN | 729 nm out, 23 nm northeast of the line, tower | no report just now | 421 ft | ||||
| HVC Hopkinsville, KY | 789 nm out, 11 nm southwest of the line | no report just now | 563 ft | ||||
| BNA Nashville, TN | destination | no report just now | 599 ft |
The highest airport on this list sits at 1,395 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At BNA when you get there the forecast at the estimated arrival, 7:31 am CDT (12:31 UTC)
BNA has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 6/4348 GRAND FORKS AFB, ND, Sunday, March 8, 2026 through Sunday, November 1, 2026 Local 13 nm from the route, at the departure end · security · until 1 November · ZMP
- 6/0708 Goodlettsville, TN, Saturday, August 1, 2026 through Sunday, August 1, 2027 UTC 6 nm from the route, at the destination end · security · until 1 August · ZME
Daylight
Sunset at GFK 6:46 pm CDT (23:46 UTC), at BNA 6:15 pm CDT (23:15 UTC) (civil twilight ends 6:40 pm CDT (23:40 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: Grand Forks International, Nashville International.