Renton Municipal to Auburn Municipal RNT → AUN
515 nautical miles (593 statute miles) south on a straight line, true course 174°, about 157° magnetic at the departure end (variation 17E). At 120 knots that is 2 h 59 min at the quickest height in today's winds (24,000 ft, a 53-knot tailwind), arriving about 8:55 pm PDT (03:55 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: 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 ZULU 2C: moderate icing up to 14,000 ft. Near the route, 178 nm along the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 198 to 238 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 RNT.
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 20:00–03:00 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 7 forecast points nearest it (SEA, PDX, RDM, LKV, SIY, RBL, SAC). 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 | 350° at 8 kt | −8 kt | 128 kt | 4 h 01 min | 9:57 pm PDT (04:57 UTC) | |
| 5,500 ft | 360° at 11 kt | −11 kt | 0 °C | 131 kt | 3 h 56 min | 9:52 pm PDT (04:52 UTC) |
| 7,500 ft | 020° at 13 kt | −12 kt | -2 °C | 132 kt | 3 h 54 min | 9:50 pm PDT (04:50 UTC) |
| 9,500 ft | 020° at 14 kt | −12 kt | -6 °C | 132 kt | 3 h 54 min | 9:50 pm PDT (04:50 UTC) |
| 11,500 ft | 010° at 13 kt | −12 kt | -9 °C | 132 kt | 3 h 54 min | 9:50 pm PDT (04:50 UTC) |
| 13,500 ft | 010° at 18 kt | −17 kt | -13 °C | 137 kt | 3 h 46 min | 9:42 pm PDT (04:42 UTC) |
| 15,500 ft | 010° at 26 kt | −25 kt | -16 °C | 145 kt | 3 h 33 min | 9:29 pm PDT (04:29 UTC) |
| 17,500 ft | 010° at 33 kt | −32 kt | -19 °C | 152 kt | 3 h 23 min | 9:19 pm PDT (04:19 UTC) |
| 18,000 ft FL180 | 010° at 35 kt | −34 kt | -19 °C | 154 kt | 3 h 21 min | 9:17 pm PDT (04:17 UTC) |
| 24,000 ft FL240 | 360° at 53 kt | −53 kt | -26 °C | 173 kt | 2 h 59 min | 8:55 pm PDT (03:55 UTC) |
| 30,000 ft FL300 | 350° at 47 kt | −47 kt | -34 °C | 167 kt | 3 h 05 min | 9:01 pm PDT (04:01 UTC) |
| 34,000 ft FL340 | 340° at 31 kt | −30 kt | -36 °C | 150 kt | 3 h 26 min | 9:22 pm PDT (04:22 UTC) |
| 39,000 ft FL390 | 300° at 23 kt | −15 kt | -41 °C | 135 kt | 3 h 49 min | 9:45 pm PDT (04:45 UTC) |
Based on data from the 11th at 18:00 UTC; valid on the 12th at 00:00 UTC for use 20:00 to 03:00 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| SEA | used from 0 nm out; 23 nm from the line | 360/9 | 350/10 1° | 010/10 -5° | 030/20 -11° | 020/60 -17° | 010/86 -26° | 360/90 -40° | 010/68 -42° | 360/31 -43° |
| PDX | used from 50 nm out; 47 nm from the line | 330/7 | 360/13 0° | 040/22 -6° | 030/23 -12° | 020/64 -18° | 010/93 -25° | 010/91 -39° | 360/62 -40° | 350/41 -43° |
| RDM | used from 149 nm out; 35 nm from the line | 010/15 -2° | 030/21 -8° | 020/26 -12° | 020/46 -22° | 010/72 -27° | 360/47 -34° | 340/31 -35° | 320/20 -40° | |
| LKV | used from 248 nm out; 72 nm from the line | 010/18 -6° | 280/7 -11° | 290/9 -22° | 280/13 -27° | 290/20 -31° | 260/19 -34° | 260/27 -39° | ||
| SIY | used from 347 nm out; 56 nm from the line | 020/15 4° | 020/16 -5° | 010/11 -10° | 010/47 -18° | 360/70 -25° | 350/58 -34° | 330/46 -35° | 300/23 -40° | |
| RBL | used from 396 nm out; 50 nm from the line | 350/10 | 350/7 6° | L/V -1° | 320/6 -8° | 340/24 -18° | 340/38 -24° | 330/32 -30° | 300/25 -34° | 270/37 -40° |
| SAC | used from 495 nm out; 41 nm from the line | 270/5 | L/V 5° | L/V -1° | 240/11 -5° | 250/22 -15° | 270/25 -24° | 260/31 -27° | 240/39 -33° | 240/39 -42° |
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 |
|---|---|---|---|---|---|---|---|
| RNT Renton, WA | departure | no report just now | 32 ft | ||||
| PLU Puyallup, WA | 20 nm out, 6 nm southwest of the line | no report just now | 537 ft | ||||
| TTD Portland, OR | 119 nm out, 20 nm west of the line, tower | no report just now | 38 ft | ||||
| BDN Bend, OR | 208 nm out, 23 nm east of the line | no report just now | 3,459 ft | ||||
| LMT Klamath Falls, OR | 317 nm out, 12 nm southwest of the line, tower | no report just now | 4,095 ft | ||||
| GOO Grass Valley, CA | 495 nm out, 7 nm southeast of the line | no report just now | 3,157 ft | ||||
| AUN Auburn, CA | destination | no report just now | 1,538 ft |
The highest airport on this list sits at 4,095 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At AUN when you get there the forecast at the estimated arrival, 8:55 pm PDT (03:55 UTC)
AUN has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 6/3475 BEALE AFB, CA, Sunday, March 8, 2026 through Sunday, November 1, 2026 Local 6 nm from the route, at the destination end · security · until 1 November · ZOA
- 6/6740 SACRAMENTO, CA, Thursday, October 8, 2026 through Sunday, October 11, 2026 Local 19 nm from the route, at the destination end · air shows/sports · ended 11 October · ZOA
Daylight
Sunset at RNT 6:26 pm PDT (01:26 UTC), at AUN 6:30 pm PDT (01:30 UTC) (civil twilight ends 6:57 pm PDT (01:57 UTC)). At 120 knots the arrival at AUN is after sunset there (6:31 pm PDT (01:31 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: Renton Municipal, Auburn Municipal.