Seattle-Tacoma International to Pullman/Moscow Regional SEA → PUW
217 nautical miles (249 statute miles) east on a straight line, true course 099°, about 083° magnetic at the departure end (variation 16E). At 120 knots that is 1 h 44 min at the quickest height in today's winds (39,000 ft, a 5-knot tailwind), arriving about 10:23 am PDT (17:23 UTC). Right now SEA is VFR, wind variable at 4 knots; PUW is VFR, wind from the northeast (040°) at 3 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: 2,072 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 last 187 nm of the route.
- AIRMET ZULU 2C: moderate icing up to 18,000 ft. Over the last 59 nm of the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 10 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 SEA.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- CRJ9 at 32,000 ft, 42 nm south, 8:22 am PDT (15:22 UTC): no turbulence above 32,000 ft, remarks: zse. 10 nm along the route, 42 nm south of the line.
as filed, and in English
SEA UA /OV SEA160042/TM 1522/FL320/TP CRJ9/TB NEG 320/RM ZSE
- Report
- a routine report filed through SEA
- Where
- 42 nm south (160°) of SEA
- Time
- 15:22 UTC
- Height
- at 32,000 ft
- Aircraft
- CRJ9
- Turbulence
- no at 32,000 ft
- Remarks
- zse
- A21N at 22,000 ft, 47 nm south, 8:15 am PDT (15:15 UTC): no turbulence from 10,000 ft to 22,000 ft, remarks: smooth during the climb summa dept zse. 20 nm along the route, 47 nm south of the line.
as filed, and in English
SEA UA /OV SEA149050/TM 1515/FL220/TP A21N/TB NEG 100-220/RM SMOOTH DURC SUMMA DEPT ZSE
- Report
- a routine report filed through SEA
- Where
- 50 nm southeast (149°) of SEA
- Time
- 15:15 UTC
- Height
- at 22,000 ft
- Aircraft
- A21N
- Turbulence
- no from 10,000 ft to 22,000 ft
- Remarks
- smooth during the climb summa dept zse
- SR22 at 6,000 ft, 37 nm north, 7:12 am PDT (14:12 UTC): a trace of rime icing. 187 nm along the route, 37 nm north of the line.
as filed, and in English
GEG UA /OV GEG140009/TM 1412/FL060/TP SR22/IC TRACE RIME OAT M4
- Report
- a routine report filed through GEG
- Where
- 9 nm southeast (140°) of GEG
- Time
- 14:12 UTC
- Height
- at 6,000 ft
- Aircraft
- SR22
- Icing
- trace rime oat −4 °C
Winds aloft along the route, and the time en route the forecast for use 14:00–21:00 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 4 forecast points nearest it (SEA, YKM, GEG, LWS). 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 | light and variable | 0 | 120 kt | 1 h 48 min | 10:27 am PDT (17:27 UTC) | |
| 5,500 ft | 020° at 5 kt | 0 | -2 °C | 120 kt | 1 h 48 min | 10:27 am PDT (17:27 UTC) |
| 7,500 ft | 030° at 10 kt | +3 kt | -2 °C | 117 kt | 1 h 51 min | 10:30 am PDT (17:30 UTC) |
| 9,500 ft | 040° at 16 kt | +7 kt | -5 °C | 113 kt | 1 h 55 min | 10:34 am PDT (17:34 UTC) |
| 11,500 ft | 030° at 19 kt | +6 kt | -7 °C | 114 kt | 1 h 54 min | 10:33 am PDT (17:33 UTC) |
| 13,500 ft | 030° at 23 kt | +7 kt | -10 °C | 113 kt | 1 h 55 min | 10:34 am PDT (17:34 UTC) |
| 15,500 ft | 030° at 28 kt | +8 kt | -13 °C | 112 kt | 1 h 56 min | 10:35 am PDT (17:35 UTC) |
| 17,500 ft | 030° at 33 kt | +8 kt | -17 °C | 112 kt | 1 h 56 min | 10:35 am PDT (17:35 UTC) |
| 18,000 ft FL180 | 030° at 34 kt | +9 kt | -18 °C | 111 kt | 1 h 57 min | 10:36 am PDT (17:36 UTC) |
| 24,000 ft FL240 | 010° at 49 kt | +2 kt | -28 °C | 118 kt | 1 h 50 min | 10:29 am PDT (17:29 UTC) |
| 30,000 ft FL300 | 010° at 54 kt | 0 | -39 °C | 120 kt | 1 h 48 min | 10:27 am PDT (17:27 UTC) |
| 34,000 ft FL340 | 020° at 42 kt | +5 kt | -44 °C | 115 kt | 1 h 53 min | 10:32 am PDT (17:32 UTC) |
| 39,000 ft FL390 | 340° at 12 kt | −5 kt | -44 °C | 125 kt | 1 h 44 min | 10:23 am PDT (17:23 UTC) |
Based on data from the 12th at 12:00 UTC; valid on the 12th at 18:00 UTC for use 14:00 to 21:00 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; 25 nm from the line | L/V | L/V 1° | 020/13 -2° | 020/27 -4° | 010/43 -14° | 360/54 -26° | 360/63 -40° | 010/60 -48° | 350/39 -50° |
| YKM | used from 49 nm out; 40 nm from the line | L/V | 350/9 0° | 040/20 -5° | 030/23 -8° | 020/41 -18° | 010/74 -27° | 010/73 -40° | 020/54 -44° | 350/9 -43° |
| GEG | used from 148 nm out; 50 nm from the line | 060/10 -2° | 050/11 -3° | 050/9 -8° | 050/27 -19° | 040/26 -31° | 030/32 -39° | 020/19 -41° | L/V -42° | |
| LWS | used from 197 nm out; 28 nm from the line | L/V | L/V -2° | 030/6 -5° | 050/10 -10° | 110/19 -21° | 150/22 -31° | 130/11 -36° | 200/6 -37° | 220/21 -40° |
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 |
|---|---|---|---|---|---|---|---|
| SEA Seattle, WA | departure | VFR Sky: a few clouds at 100 feet, a few clouds at 8,000 feet | variable at 4 knots | 10+ mi | none | 432 ft | 7:53 am PDT (14:53 UTC) |
| ESW Easton, WA | 49 nm out, 4 nm southwest of the line | no report just now | 2,226 ft | ||||
| MWH Moses Lake, WA | 118 nm out, 9 nm northeast of the line, tower | VFR | from the north (010°) at 5 knots | 10+ mi | none | 1,188 ft | 14:52 UTC |
| PUW Pullman/Moscow, WA | destination | VFR Sky: overcast at 3,400 feet | from the northeast (040°) at 3 knots | 10+ mi | 3,400 ft | 2,566 ft | 7:53 am PDT (14:53 UTC) |
The highest airport on this list sits at 2,566 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At PUW when you get there the forecast at the estimated arrival, 10:23 am PDT (17:23 UTC)
Wind from the west at 4 knots, visibility more than 6 miles, a broken layer at 5,000 feet VFR
The whole forecast for PUW
- From Mon 6:00 am PDT (13:00 UTC): wind light and variable, visibility more than 6 miles, overcast at 4,500 feet
- 30% chance between Mon 6:00 am PDT (13:00 UTC) and 10:00 am PDT (17:00 UTC): light rain showers, overcast at 3,000 feet
- From Mon 10:00 am PDT (17:00 UTC): wind from the west at 4 knots, visibility more than 6 miles, a broken layer at 5,000 feet
- From Mon 4:00 pm PDT (23:00 UTC): wind light and variable, visibility more than 6 miles, a few clouds at 10,000 feet
- From Mon 7:00 pm PDT (02:00 UTC): wind calm, visibility more than 6 miles, a few clouds at 7,000 feet
The forecast for SEA, the departure
- From Mon 8:00 am PDT (15:00 UTC): wind from the south-southeast at 5 knots, visibility more than 6 miles, clear skies
- From Mon 9:00 am PDT (16:00 UTC): wind light and variable, visibility more than 6 miles, clear skies
- From Mon 3:00 pm PDT (22:00 UTC): wind from the west at 5 knots, visibility more than 6 miles, clear skies
- From Mon 8:00 pm PDT (03:00 UTC): wind light and variable, visibility more than 6 miles, scattered clouds at 25,000 feet
- From Mon 11:00 pm PDT (06:00 UTC): wind from the southeast at 3 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
- From Tue 4:00 am PDT (11:00 UTC): wind from the south-southeast at 5 knots, visibility more than 6 miles, overcast at 10,000 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 SEA 6:25 pm PDT (01:25 UTC), at PUW 6:05 pm PDT (01:05 UTC) (civil twilight ends 6:35 pm PDT (01:35 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: Seattle-Tacoma International, Pullman/Moscow Regional.