Boise Air Trml/Gowen Field to Nashville International BOI → BNA
1,425 nautical miles (1,639 statute miles) east on a straight line, true course 098°, about 085° magnetic at the departure end (variation 13E). At 120 knots that is 8 h 41 min at the quickest height in today's winds (39,000 ft, a 44-knot tailwind), arriving about 9:46 am CDT (14:46 UTC). Right now BOI is VFR, wind from the west (270°) at 7 knots; BNA is VFR, wind calm. 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: 11 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 1W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the first 120 nm of the route.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 10 to 438 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 50 to 418 nm out.
- AIRMET SIERRA 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Near the route, 130 nm along the route.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 38,000 ft. Over the route from 279 to 618 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 279 to 568 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). Over the route from 339 to 498 nm out.
- AIRMET TANGO 5W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Over the route from 339 to 418 nm out.
- 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 598 to 1096 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 30 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 BOI.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- E175 at 6,300 ft, 10 nm northeast, 10:20 pm MDT (04:20 UTC): overcast above 6,300 ft, remarks: during the descent runway 31. 80 nm along the route, 10 nm northeast of the line.
as filed, and in English
SUN UA /OV KSUN/TM 0420/FL063/TP E175/SK OVC063-TOPUNKN/RM DURD RY31
- Report
- a routine report filed through SUN
- Where
- over KSUN
- Time
- 04:20 UTC
- Height
- at 6,300 ft
- Aircraft
- E175
- Sky
- overcast from 6,300 ft, tops unknown
- Remarks
- during the descent runway 31
- E175 at 5,900 ft, 10 nm northeast, 9:29 pm MDT (03:29 UTC): a broken layer above 5,900 ft, remarks: during the descent runway 31. 80 nm along the route, 10 nm northeast of the line.
as filed, and in English
SUN UA /OV KSUN/TM 0329/FL059/TP E175/SK BKN059-TOPUNKN/RM DURD RY31
- Report
- a routine report filed through SUN
- Where
- over KSUN
- Time
- 03:29 UTC
- Height
- at 5,900 ft
- Aircraft
- E175
- Sky
- a broken layer from 5,900 ft, tops unknown
- Remarks
- during the descent runway 31
- CRJ7 at 6,300 ft, 13 nm south, 9:27 pm MDT (03:27 UTC): overcast above 6,300 ft, remarks: during the descent. 159 nm along the route, 13 nm south of the line.
as filed, and in English
PIH UA /OV KPIH/TM 0327/FL063/TP CRJ7/SK OVC063-TOPUNKN/RM DURD
- Report
- a routine report filed through PIH
- Where
- over KPIH
- Time
- 03:27 UTC
- Height
- at 6,300 ft
- Aircraft
- CRJ7
- Sky
- overcast from 6,300 ft, tops unknown
- Remarks
- during the descent
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 11 forecast points nearest it (BOI, PIH, LND, BFF, GLD, GRI, SLN, MKC, COU, CGI, 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 |
|---|---|---|---|---|---|---|
| 5,500 ft | 230° at 20 kt | −10 kt | 13 °C | 130 kt | 10 h 58 min | 12:03 pm CDT (17:03 UTC) |
| 7,500 ft | 230° at 19 kt | −10 kt | 12 °C | 130 kt | 10 h 58 min | 12:03 pm CDT (17:03 UTC) |
| 9,500 ft | 240° at 18 kt | −12 kt | 8 °C | 132 kt | 10 h 48 min | 11:53 am CDT (16:53 UTC) |
| 11,500 ft | 230° at 17 kt | −11 kt | 5 °C | 131 kt | 10 h 53 min | 11:58 am CDT (16:58 UTC) |
| 13,500 ft | 230° at 20 kt | −12 kt | 0 °C | 132 kt | 10 h 48 min | 11:53 am CDT (16:53 UTC) |
| 15,500 ft | 230° at 23 kt | −15 kt | -4 °C | 135 kt | 10 h 33 min | 11:38 am CDT (16:38 UTC) |
| 17,500 ft | 240° at 26 kt | −18 kt | -8 °C | 138 kt | 10 h 20 min | 11:25 am CDT (16:25 UTC) |
| 18,000 ft FL180 | 240° at 27 kt | −18 kt | -9 °C | 138 kt | 10 h 20 min | 11:25 am CDT (16:25 UTC) |
| 24,000 ft FL240 | 230° at 35 kt | −21 kt | -21 °C | 141 kt | 10 h 06 min | 11:11 am CDT (16:11 UTC) |
| 30,000 ft FL300 | 240° at 43 kt | −32 kt | -31 °C | 152 kt | 9 h 22 min | 10:27 am CDT (15:27 UTC) |
| 34,000 ft FL340 | 250° at 50 kt | −41 kt | -38 °C | 161 kt | 8 h 51 min | 9:56 am CDT (14:56 UTC) |
| 39,000 ft FL390 | 260° at 48 kt | −44 kt | -47 °C | 164 kt | 8 h 41 min | 9:46 am CDT (14:46 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| BOI | used from 0 nm out; 25 nm from the line | 300/7 2° | 280/5 -4° | 210/16 -9° | 210/60 -20° | 210/75 -29° | 210/63 -32° | 220/64 -32° | 220/54 -39° | |
| PIH | used from 100 nm out; 40 nm from the line | L/V | 240/13 1° | 240/15 -3° | 210/42 -15° | 200/70 -25° | 220/74 -29° | 220/71 -36° | 220/62 -43° | |
| LND | used from 249 nm out; 59 nm from the line | 200/23 6° | 220/31 1° | 220/39 -11° | 230/39 -23° | 220/51 -28° | 220/66 -37° | 230/68 -45° | ||
| BFF | used from 448 nm out; 94 nm from the line | 180/28 | 220/33 15° | 210/31 7° | 230/32 -9° | 220/41 -21° | 220/40 -33° | 240/47 -36° | 250/54 -46° | |
| GLD | used from 648 nm out; 98 nm from the line | 230/49 | 230/42 15° | 220/26 8° | 240/18 -7° | 230/27 -21° | 240/62 -30° | 240/61 -35° | 250/57 -47° | |
| GRI | used from 697 nm out; 97 nm from the line | 230/35 21° | 230/23 13° | 220/20 7° | 240/25 -8° | 240/37 -20° | 250/49 -33° | 260/57 -38° | 260/58 -47° | |
| SLN | used from 847 nm out; 68 nm from the line | 210/53 | 230/41 20° | 240/26 14° | 230/16 8° | 240/25 -7° | 240/35 -19° | 250/61 -30° | 260/65 -38° | 260/56 -49° |
| MKC | used from 946 nm out; 37 nm from the line | 220/44 | 250/28 18° | 250/18 13° | 240/12 6° | 280/24 -6° | 240/34 -18° | 260/47 -30° | 260/51 -40° | 270/58 -50° |
| COU | used from 1046 nm out; 55 nm from the line | 230/31 | 230/30 15° | 260/16 11° | 270/14 6° | 260/24 -6° | 270/27 -18° | 270/37 -32° | 280/49 -41° | 290/56 -51° |
| CGI | used from 1195 nm out; 50 nm from the line | 240/20 | 270/15 15° | 280/15 11° | 300/13 6° | 290/20 -6° | 280/24 -18° | 300/34 -32° | 300/47 -41° | 310/49 -51° |
| BNA | used from 1345 nm out; 55 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 |
|---|---|---|---|---|---|---|---|
| BOI Boise, ID | departure | VFR Sky: overcast at 9,000 feet | from the west (270°) at 7 knots | 10+ mi | 9,000 ft | 2,871 ft | 11:53 pm MDT (05:53 UTC) |
| SUN Hailey, ID | 80 nm out, 10 nm northeast of the line, tower | IFR Sky: a broken layer at 600 feet, overcast at 1,100 feet | from the southeast (140°) at 5 knots | 10+ mi | 600 ft | 5,319 ft | 05:55 UTC |
| PIH Pocatello, ID | 159 nm out, 13 nm south of the line, tower | marginal VFR Sky: overcast at 3,000 feet | from the south (190°) at 6 knots | 10+ mi | 3,000 ft | 4,451 ft | 05:53 UTC |
| PNA Pinedale, WY | 289 nm out, 7 nm northwest of the line | VFR Sky: a broken layer at 6,000 feet, overcast at 7,000 feet Weather: light drizzle | from the west-northwest (300°) at 4 knots | 10+ mi | 6,000 ft | 7,096 ft | 05:55 UTC |
| EAN Wheatland, WY | 508 nm out, 15 nm north of the line | VFR | from the north (350°) at 3 knots | 7 mi | none | 4,779 ft | 05:50 UTC |
| OGA Ogallala, NE | 657 nm out, 3 nm north of the line | VFR | from the east (090°) at 4 knots | 10+ mi | none | 3,279 ft | 05:55 UTC |
| HDE Holdrege, NE | 777 nm out, 2 nm west of the line | VFR | from the south-southeast (160°) at 9 knots | 10+ mi | none | 2,313 ft | 05:55 UTC |
| MCI Kansas City, MO | 996 nm out, 12 nm northeast of the line, tower | VFR | from the south-southwest (200°) at 16 knots, gusting to 23 | 10+ mi | none | 1,027 ft | 05:53 UTC |
| MKC Kansas City, MO | 1006 nm out, 4 nm northeast of the line, tower | VFR | from the south-southwest (200°) at 16 knots, gusting to 23 | 10+ mi | none | 756 ft | 05:54 UTC |
| CGI Cape Girardeau, MO | 1275 nm out, 6 nm west of the line, tower | VFR | from the west-southwest (240°) at 6 knots | 10+ mi | none | 341 ft | 20:53 UTC |
| PAH Paducah, KY | 1305 nm out, 6 nm northeast of the line, tower | VFR | calm | 10+ mi | none | 410 ft | 00:00 UTC |
| BNA Nashville, TN | destination | VFR | calm | 9 mi | none | 599 ft | 12:53 am CDT (05:53 UTC) |
The highest airport on this list sits at 7,096 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, 9:46 am CDT (14:46 UTC)
Wind from the west-southwest at 7 knots, visibility more than 6 miles, a few clouds at 20,000 feet VFR
The whole forecast for BNA
- From Mon 1:00 am CDT (06:00 UTC): wind from the south at 4 knots, visibility 6 miles, mist, clear skies
- From Mon 7:00 am CDT (12:00 UTC): wind from the south at 2 knots, visibility 5 miles, mist, scattered clouds at 300 feet
- From Mon 9:00 am CDT (14:00 UTC): wind from the west-southwest at 7 knots, visibility more than 6 miles, a few clouds at 20,000 feet
- From Mon 8:00 pm CDT (01:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, clear skies
The forecast for BOI, the departure
- From Mon 12:00 am MDT (06:00 UTC): wind light and variable, visibility more than 6 miles, a broken layer at 8,000 feet
- From Mon 2:00 am MDT (08:00 UTC): wind from the west-northwest at 5 knots, visibility more than 6 miles, scattered clouds at 4,000 feet, a broken layer at 8,000 feet
- From Mon 12:00 pm MDT (18:00 UTC): wind from the northwest at 10 knots, visibility more than 6 miles, a broken layer at 10,000 feet
Temporary flight restrictions on the line or within 25 nm of it
- 6/0708 Goodlettsville, TN, Saturday, August 1, 2026 through Sunday, August 1, 2027 UTC 11 nm from the route, at the destination end · security · until 1 August · ZME
Daylight
Sunset at BOI 7:05 pm MDT (01:05 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: Boise Air Trml/Gowen Field, Nashville International.