Kansas City International to Boise Air Trml/Gowen Field MCI → BOI
998 nautical miles (1,149 statute miles) west on a straight line, true course 292°, about 290° magnetic at the departure end (variation 2E). At 120 knots that is 8 h 50 min at the quickest height in today's winds (4,500 ft, a 7-knot headwind), arriving about 9:50 am MDT (15:50 UTC). Right now MCI is VFR, wind from the south-southwest (210°) at 16 knots, gusting to 23; BOI is VFR, wind from the west-northwest (290°) at 10 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: 4 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). Over the first 409 nm of the route.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 38,000 ft. Over the route from 379 to 719 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 439 to 719 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 499 to 669 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 559 to 988 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 579 to 948 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 589 to 659 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, 869 nm along the route.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the last 120 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 MCI.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- B38M at 30,000 ft, 6 nm northeast, 12:45 am CDT (05:45 UTC): moderate chop turbulence. 599 nm along the route, 6 nm northeast of the line.
as filed, and in English
RIW UA /OV BOY126080/TM 0545/FL300/TP B38M/TB CONS MOD CHOP /ZLC
- Report
- a routine report filed through RIW
- Where
- 80 nm southeast (126°) of BOY
- Time
- 05:45 UTC
- Height
- at 30,000 ft
- Aircraft
- B38M
- Turbulence
- continuous moderate chop zlc
- E175 at 6,300 ft, 9 nm northeast, 11:20 pm CDT (04:20 UTC): overcast above 6,300 ft, remarks: during the descent runway 31. 919 nm along the route, 9 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
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 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 7 forecast points nearest it (MKC, GRI, GLD, BFF, LND, PIH, BOI). 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 21 kt | +7 kt | 15 °C | 113 kt | 8 h 50 min | 9:50 am MDT (15:50 UTC) |
| 6,500 ft | 220° at 20 kt | +8 kt | 15 °C | 112 kt | 8 h 55 min | 9:55 am MDT (15:55 UTC) |
| 8,500 ft | 220° at 21 kt | +9 kt | 9 °C | 111 kt | 8 h 59 min | 9:59 am MDT (15:59 UTC) |
| 10,500 ft | 220° at 22 kt | +10 kt | 6 °C | 110 kt | 9 h 04 min | 10:04 am MDT (16:04 UTC) |
| 12,500 ft | 220° at 23 kt | +10 kt | 2 °C | 110 kt | 9 h 04 min | 10:04 am MDT (16:04 UTC) |
| 14,500 ft | 220° at 27 kt | +13 kt | -3 °C | 107 kt | 9 h 20 min | 10:20 am MDT (16:20 UTC) |
| 16,500 ft | 220° at 30 kt | +15 kt | -7 °C | 105 kt | 9 h 30 min | 10:30 am MDT (16:30 UTC) |
| 18,000 ft FL180 | 230° at 33 kt | +18 kt | -11 °C | 102 kt | 9 h 47 min | 10:47 am MDT (16:47 UTC) |
| 24,000 ft FL240 | 220° at 45 kt | +20 kt | -22 °C | 100 kt | 9 h 59 min | 10:59 am MDT (16:59 UTC) |
| 30,000 ft FL300 | 230° at 51 kt | +29 kt | -31 °C | 91 kt | 10 h 58 min | 11:58 am MDT (17:58 UTC) |
| 34,000 ft FL340 | 240° at 57 kt | +37 kt | -37 °C | 83 kt | 12 h 01 min | 1:01 pm MDT (19:01 UTC) |
| 39,000 ft FL390 | 240° at 57 kt | +42 kt | -45 °C | 78 kt | 12 h 48 min | 1:48 pm MDT (19:48 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| MKC | used from 0 nm out; 35 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° |
| GRI | used from 100 nm out; 74 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° | |
| GLD | used from 300 nm out; 106 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° | |
| BFF | used from 349 nm out; 60 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° | |
| LND | used from 549 nm out; 94 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° | ||
| PIH | used from 749 nm out; 64 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° | |
| BOI | used from 899 nm out; 75 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° |
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 |
|---|---|---|---|---|---|---|---|
| MCI Kansas City, MO | departure | VFR | from the south-southwest (210°) at 16 knots, gusting to 23 | 10+ mi | none | 1,027 ft | 1:53 am CDT (06:53 UTC) |
| STJ St Joseph, MO | 20 nm out, 23 nm northeast of the line, tower | VFR | from the south (190°) at 8 knots | 10+ mi | none | 826 ft | 06:53 UTC |
| HJH Hebron, NE | 140 nm out, 2 nm northwest of the line | VFR | from the south (190°) at 11 knots, gusting to 15 | 10+ mi | none | 1,468 ft | 06:35 UTC |
| LXN Lexington, NE | 250 nm out, 4 nm northeast of the line | VFR | from the south (190°) at 13 knots, gusting to 19 | 10+ mi | none | 2,412 ft | 06:35 UTC |
| OKS Oshkosh, NE | 369 nm out, 4 nm north of the line | no report just now | 3,394 ft | ||||
| GUR Guernsey, WY | 489 nm out, 23 nm north of the line, tower | VFR Sky: a broken layer at 15,000 feet | from the east (100°) at 4 knots | 10+ mi | 15,000 ft | 4,401 ft | 06:55 UTC |
| LND Lander, WY | 669 nm out, 13 nm north of the line | marginal VFR Sky: overcast at 1,000 feet | from the west-northwest (300°) at 4 knots | 10+ mi | 1,000 ft | 5,588 ft | 06:53 UTC |
| PNA Pinedale, WY | 719 nm out, 5 nm east of the line | VFR Sky: a broken layer at 3,100 feet, overcast at 11,000 feet | from the southeast (140°) at 4 knots | 10+ mi | 3,100 ft | 7,096 ft | 06:35 UTC |
| PIH Pocatello, ID | 839 nm out, 15 nm south of the line, tower | marginal VFR Sky: overcast at 2,600 feet | calm | 10+ mi | 2,600 ft | 4,451 ft | 06:53 UTC |
| SUN Hailey, ID | 919 nm out, 9 nm northeast of the line, tower | low IFR Sky: overcast at 400 feet | from the south (170°) at 7 knots | 7 mi | 400 ft | 5,319 ft | 06:35 UTC |
| BOI Boise, ID | destination | VFR Sky: overcast at 9,000 feet | from the west-northwest (290°) at 10 knots | 10+ mi | 9,000 ft | 2,871 ft | 12:53 am MDT (06:53 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 BOI when you get there the forecast at the estimated arrival, 9:50 am MDT (15:50 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 VFR
The whole forecast for BOI
- 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
The forecast for MCI, the departure
- From Mon 1:00 am CDT (06:00 UTC): wind from the south at 11 knots, gusting to 20, visibility more than 6 miles, a few clouds at 25,000 feet
- From Mon 9:00 am CDT (14:00 UTC): wind from the south-southwest at 17 knots, gusting to 26, visibility more than 6 miles, scattered clouds at 25,000 feet
- From Mon 6:00 pm CDT (23:00 UTC): wind from the south at 11 knots, gusting to 19, visibility more than 6 miles, a few clouds at 25,000 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 MCI 6:44 pm CDT (23:44 UTC), at BOI 7:05 pm MDT (01:05 UTC) (civil twilight ends 7:33 pm MDT (01:33 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: Kansas City International, Boise Air Trml/Gowen Field.