Guam International to Aurora Muni/Al Potter Field GUM → AUH
6,038 nautical miles (6,949 statute miles) northeast on a straight line, true course 043°, about 041° magnetic at the departure end (variation 2E). At 120 knots that is 49 h 30 min at the quickest height in today's winds (5,500 ft, a 2-knot tailwind), arriving about 6:16 am CDT (11:16 UTC), after sunset at the destination. 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 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the route from 4919 to 5309 nm out.
- AIRMET ZULU 2C: moderate icing up to 18,000 ft. Over the route from 5069 to 5398 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 5129 to 5598 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). Over the route from 5199 to 5918 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 5408 to 5608 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 5618 to 5758 nm out.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Near the route, 5658 nm along the route.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Near the route, 5718 nm along the route.
- 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 last 180 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 GUM.
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 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 13 forecast points nearest it (AST, CAR, AST, SEA, YKM, LWS, DLN, BIL, LND, RAP, BFF, ONL, GRI). 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 | 340° at 1 kt | 0 | 120 kt | 50 h 19 min | 7:05 am CDT (12:05 UTC) | |
| 5,500 ft | 320° at 6 kt | −2 kt | 20 °C | 122 kt | 49 h 30 min | 6:16 am CDT (11:16 UTC) |
| 7,500 ft | 330° at 10 kt | 0 | 0 °C | 120 kt | 50 h 19 min | 7:05 am CDT (12:05 UTC) |
| 9,500 ft | 340° at 15 kt | +3 kt | -1 °C | 117 kt | 51 h 36 min | 8:22 am CDT (13:22 UTC) |
| 11,500 ft | 350° at 23 kt | +8 kt | -3 °C | 112 kt | 53 h 55 min | 10:41 am CDT (15:41 UTC) |
| 13,500 ft | 360° at 28 kt | +11 kt | -6 °C | 109 kt | 55 h 24 min | 12:10 pm CDT (17:10 UTC) |
| 15,500 ft | 360° at 33 kt | +13 kt | -9 °C | 107 kt | 56 h 26 min | 1:12 pm CDT (18:12 UTC) |
| 17,500 ft | 360° at 37 kt | +16 kt | -13 °C | 104 kt | 58 h 03 min | 2:49 pm CDT (19:49 UTC) |
| 18,000 ft FL180 | 360° at 39 kt | +16 kt | -14 °C | 104 kt | 58 h 03 min | 2:49 pm CDT (19:49 UTC) |
| 24,000 ft FL240 | 340° at 42 kt | +10 kt | -26 °C | 110 kt | 54 h 53 min | 11:39 am CDT (16:39 UTC) |
| 30,000 ft FL300 | 340° at 45 kt | +9 kt | -39 °C | 111 kt | 54 h 24 min | 11:10 am CDT (16:10 UTC) |
| 34,000 ft FL340 | 340° at 47 kt | +9 kt | -47 °C | 111 kt | 54 h 24 min | 11:10 am CDT (16:10 UTC) |
| 39,000 ft FL390 | 330° at 31 kt | −1 kt | -46 °C | 121 kt | 49 h 54 min | 6:40 am CDT (11:40 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| AST | used from 0 nm out; 4852 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 2399 nm out; 2909 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 2449 nm out; 2403 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° |
| SEA | used from 4849 nm out; 52 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° |
| YKM | used from 4949 nm out; 43 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° |
| LWS | used from 5099 nm out; 28 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° |
| DLN | used from 5249 nm out; 77 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° | ||
| BIL | used from 5448 nm out; 78 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° | |
| LND | used from 5548 nm out; 98 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° | ||
| RAP | used from 5648 nm out; 105 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° | |
| BFF | used from 5748 nm out; 61 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° | |
| ONL | used from 5898 nm out; 81 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° | |
| GRI | used from 5948 nm out; 50 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° |
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 |
|---|---|---|---|---|---|---|---|
| GUM Tamuning, GU | departure | no report just now | 305 ft | ||||
| GRO Rota Island, MP | 50 nm out, 10 nm northwest of the line | no report just now | 606 ft | ||||
| UIL Quillayute, WA | 4829 nm out, 21 nm north of the line | no report just now | 194 ft | ||||
| TIW Tacoma, WA | 4919 nm out, 4 nm southwest of the line, tower | no report just now | 294 ft | ||||
| TIF Thedford, NE | 5908 nm out, 4 nm north of the line | no report just now | 2,925 ft | ||||
| AUH Aurora, NE | destination | no report just now | 1,803 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 AUH when you get there the forecast at the estimated arrival, 6:16 am CDT (11:16 UTC)
AUH has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 6/2520 S. FINEGAYAN, GU 4 nm from the route, at the departure end · security · ZUA
- 6/4143 ANDERSEN AFB, GU, Monday, March 9, 2026 through Tuesday, March 9, 2027 Local on the route, at the departure end · security · until 9 March · ZUA
Daylight
Sunset at GUM 6:03 pm ChST (08:03 UTC), at AUH 6:56 pm CDT (23:56 UTC) (civil twilight ends 7:24 pm CDT (00:24 UTC)). At 120 knots the arrival at AUH is before sunrise there (7:42 am CDT (12:42 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: Guam International, Aurora Muni/Al Potter Field.