Aurora Muni/Al Potter Field to Guam International AUH → GUM
6,038 nautical miles (6,949 statute miles) northwest on a straight line, true course 298°, about 292° magnetic at the departure end (variation 6E). At 120 knots that is 44 h 24 min at the quickest height in today's winds (18,000 ft, a 16-knot tailwind), arriving about 5:54 pm ChST (07:54 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: 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 TANGO 2W: 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 100 nm of the route.
- 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 route from 100 to 820 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 240 to 370 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Near the route, 320 nm along the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 420 to 930 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 440 to 620 nm out.
- AIRMET ZULU 2C: moderate icing up to 18,000 ft. Over the route from 640 to 940 nm out.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the route from 780 to 1090 nm out.
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 AUH.
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 08:00–15:00 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 13 forecast points nearest it (GRI, ONL, BFF, RAP, LND, BIL, DLN, LWS, YKM, SEA, AST, CAR, AST). 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 | 310° at 4 kt | +2 kt | 20 °C | 118 kt | 51 h 10 min | 12:40 am ChST (14:40 UTC) |
| 6,500 ft | 330° at 8 kt | +1 kt | 1 °C | 119 kt | 50 h 44 min | 12:14 am ChST (14:14 UTC) |
| 8,500 ft | 340° at 12 kt | −1 kt | -1 °C | 121 kt | 49 h 54 min | 11:24 pm ChST (13:24 UTC) |
| 10,500 ft | 350° at 19 kt | −5 kt | -2 °C | 125 kt | 48 h 18 min | 9:48 pm ChST (11:48 UTC) |
| 12,500 ft | 350° at 26 kt | −9 kt | -4 °C | 129 kt | 46 h 48 min | 8:18 pm ChST (10:18 UTC) |
| 14,500 ft | 360° at 30 kt | −12 kt | -8 °C | 132 kt | 45 h 45 min | 7:15 pm ChST (09:15 UTC) |
| 16,500 ft | 360° at 35 kt | −14 kt | -11 °C | 134 kt | 45 h 04 min | 6:34 pm ChST (08:34 UTC) |
| 18,000 ft FL180 | 360° at 38 kt | −16 kt | -14 °C | 136 kt | 44 h 24 min | 5:54 pm ChST (07:54 UTC) |
| 24,000 ft FL240 | 340° at 42 kt | −10 kt | -26 °C | 130 kt | 46 h 27 min | 7:57 pm ChST (09:57 UTC) |
| 30,000 ft FL300 | 340° at 45 kt | −9 kt | -39 °C | 129 kt | 46 h 48 min | 8:18 pm ChST (10:18 UTC) |
| 34,000 ft FL340 | 340° at 47 kt | −9 kt | -47 °C | 129 kt | 46 h 48 min | 8:18 pm ChST (10:18 UTC) |
| 39,000 ft FL390 | 320° at 31 kt | +2 kt | -46 °C | 118 kt | 51 h 10 min | 12:40 am ChST (14:40 UTC) |
Based on data from the 12th at 06:00 UTC; valid on the 12th at 12:00 UTC for use 08:00 to 15:00 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| GRI | used from 0 nm out; 11 nm from the line | 230/39 23° | 230/32 15° | 210/29 7° | 230/31 -8° | 230/43 -21° | 250/52 -31° | 260/59 -35° | 260/59 -46° | |
| ONL | used from 100 nm out; 87 nm from the line | 250/31 22° | 230/27 16° | 220/25 8° | 230/25 -9° | 220/29 -22° | 250/42 -33° | 250/48 -36° | 250/52 -46° | |
| BFF | used from 150 nm out; 98 nm from the line | 280/28 | 260/39 11° | 240/34 5° | 210/38 -11° | 210/52 -22° | 230/61 -31° | 230/61 -36° | 240/56 -45° | |
| RAP | used from 300 nm out; 79 nm from the line | 250/28 16° | 260/31 10° | 240/25 4° | 210/35 -10° | 200/45 -23° | 230/47 -31° | 230/47 -36° | 230/51 -46° | |
| LND | used from 400 nm out; 113 nm from the line | 240/10 3° | 240/30 0° | 220/42 -13° | 230/52 -23° | 220/54 -33° | 220/52 -36° | 220/53 -44° | ||
| BIL | used from 500 nm out; 76 nm from the line | 300/14 | 270/19 -2° | 260/26 -2° | 220/28 -13° | 210/51 -25° | 220/56 -33° | 220/61 -39° | 220/72 -45° | |
| DLN | used from 600 nm out; 65 nm from the line | 190/10 -4° | 220/23 -4° | 210/21 -18° | 210/43 -28° | 210/60 -33° | 210/72 -37° | 210/67 -44° | ||
| LWS | used from 800 nm out; 62 nm from the line | L/V | 340/5 -3° | L/V -6° | 040/7 -10° | 100/23 -22° | 180/30 -31° | 190/11 -34° | 200/11 -36° | 220/23 -40° |
| YKM | used from 950 nm out; 63 nm from the line | 360/6 | 360/11 -1° | 030/20 -7° | 040/21 -11° | 020/55 -18° | 010/84 -26° | 010/79 -40° | 010/45 -42° | 350/23 -42° |
| SEA | used from 1050 nm out; 39 nm from the line | 350/5 | 010/6 0° | 010/9 -4° | 010/27 -6° | 010/51 -15° | 360/58 -26° | 360/60 -41° | 350/55 -48° | 340/30 -45° |
| AST | used from 1200 nm out; 101 nm from the line | L/V | 340/6 1° | 350/17 -2° | 360/32 -3° | 360/50 -14° | 350/55 -26° | 350/58 -40° | 350/62 -49° | 340/40 -47° |
| CAR | used from 3599 nm out; 2905 nm from the line | 300/29 | 280/23 8° | 280/33 4° | 280/40 -1° | 280/40 -14° | 300/46 -24° | 290/44 -41° | 270/57 -50° | 260/73 -54° |
| AST | used from 3649 nm out; 2513 nm from the line | L/V | 340/6 1° | 350/17 -2° | 360/32 -3° | 360/50 -14° | 350/55 -26° | 350/58 -40° | 350/62 -49° | 340/40 -47° |
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 |
|---|---|---|---|---|---|---|---|
| AUH Aurora, NE | departure | no report just now | 1,803 ft | ||||
| TIF Thedford, NE | 130 nm out, 4 nm north of the line | no report just now | 2,925 ft | ||||
| TIW Tacoma, WA | 1120 nm out, 4 nm southwest of the line, tower | no report just now | 294 ft | ||||
| UIL Quillayute, WA | 1210 nm out, 21 nm north of the line | no report just now | 194 ft | ||||
| GRO Rota Island, MP | 5988 nm out, 10 nm northwest of the line | no report just now | 606 ft | ||||
| GUM Tamuning, GU | destination | no report just now | 305 ft |
The highest airport on this list sits at 2,925 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At GUM when you get there the forecast at the estimated arrival, 5:54 pm ChST (07:54 UTC)
GUM has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 6/4143 ANDERSEN AFB, GU, Monday, March 9, 2026 through Tuesday, March 9, 2027 Local on the route, at the destination end · security · until 9 March · ZUA
- 6/2520 S. FINEGAYAN, GU 4 nm from the route, at the destination end · security · ZUA
Daylight
Sunset at AUH 6:56 pm CDT (23:56 UTC), at GUM 6:03 pm ChST (08:03 UTC) (civil twilight ends 6:24 pm ChST (08:24 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: Aurora Muni/Al Potter Field, Guam International.