Seattle-Tacoma International to Birmingham-Shuttlesworth International SEA → BHM
1,804 nautical miles (2,075 statute miles) east on a straight line, true course 105°, about 089° magnetic at the departure end (variation 16E). At 120 knots that is 11 h 52 min at the quickest height in today's winds (39,000 ft, a 32-knot tailwind), arriving about 12:15 pm CDT (17:15 UTC). Right now SEA is VFR, wind from the east (090°) at 6 knots; BHM is VFR, wind calm. 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
- SIGMET 8C: thunderstorms (a convective SIGMET) up to 32,000 ft, moving from the southwest at 40 knots, until 11:55 pm PDT (06:55 UTC). Near the route, 807 nm along the route.
as issued
WSUS32 KKCI 120455 MKCC WST 120455 CONVECTIVE SIGMET 8C VALID UNTIL 0655Z NE SD WY FROM 50WNW RAP-20SSW RAP-60NW BFF-40ENE DDY-50WNW RAP DMSHG AREA TS MOV FROM 22040KT. TOPS TO FL320.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the first 179 nm of the route.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 120 to 458 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 199 to 697 nm out.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 269 to 448 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 299 to 678 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 468 to 747 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 578 to 827 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 38,000 ft. Over the route from 598 to 897 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 618 to 797 nm out.
- 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 route from 887 to 1395 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 SEA.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- E75L at 1,500 ft, 34 nm south, 9:49 pm PDT (04:49 UTC): remarks: low-level wind shear loss of 8 knots on final. 149 nm along the route, 34 nm south of the line.
as filed, and in English
PSC UA /OV PSC120003/TM 0449/FL015/TP E75L/RM LLWS LOSS OF 8 KTS ON FINAL
- Report
- a routine report filed through PSC
- Where
- 3 nm southeast (120°) of PSC
- Time
- 04:49 UTC
- Height
- at 1,500 ft
- Aircraft
- E75L
- Remarks
- low-level wind shear loss of 8 knots on final
- UAL1076 at 30,000 ft, 16 nm northeast, 7:36 pm PDT (02:36 UTC): light turbulence, wind 225° at 60 knots. 638 nm along the route, 16 nm northeast of the line.
as filed, and in English
ARP UAL1076 4405N 10749W 0236 F300 225/060KT TB CONT LGT TURB IC
- Report
- a routine report filed through ARP
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 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 14 forecast points nearest it (SEA, YKM, LWS, DLN, LND, BFF, GRI, SLN, MKC, SGF, CGI, MEM, HSV, BHM). 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 | 230° at 14 kt | −3 kt | 123 kt | 14 h 40 min | 3:03 pm CDT (20:03 UTC) | |
| 5,500 ft | 220° at 14 kt | −2 kt | 21 °C | 122 kt | 14 h 47 min | 3:10 pm CDT (20:10 UTC) |
| 7,500 ft | 230° at 11 kt | −3 kt | 7 °C | 123 kt | 14 h 40 min | 3:03 pm CDT (20:03 UTC) |
| 9,500 ft | 240° at 11 kt | −6 kt | 6 °C | 126 kt | 14 h 19 min | 2:42 pm CDT (19:42 UTC) |
| 11,500 ft | 240° at 12 kt | −5 kt | 2 °C | 125 kt | 14 h 26 min | 2:49 pm CDT (19:49 UTC) |
| 13,500 ft | 240° at 13 kt | −6 kt | -2 °C | 126 kt | 14 h 19 min | 2:42 pm CDT (19:42 UTC) |
| 15,500 ft | 240° at 15 kt | −7 kt | -6 °C | 127 kt | 14 h 12 min | 2:35 pm CDT (19:35 UTC) |
| 17,500 ft | 240° at 17 kt | −8 kt | -10 °C | 128 kt | 14 h 06 min | 2:29 pm CDT (19:29 UTC) |
| 18,000 ft FL180 | 240° at 17 kt | −9 kt | -11 °C | 129 kt | 13 h 59 min | 2:22 pm CDT (19:22 UTC) |
| 24,000 ft FL240 | 240° at 23 kt | −10 kt | -22 °C | 130 kt | 13 h 53 min | 2:16 pm CDT (19:16 UTC) |
| 30,000 ft FL300 | 250° at 31 kt | −21 kt | -33 °C | 141 kt | 12 h 48 min | 1:11 pm CDT (18:11 UTC) |
| 34,000 ft FL340 | 250° at 38 kt | −28 kt | -38 °C | 148 kt | 12 h 11 min | 12:34 pm CDT (17:34 UTC) |
| 39,000 ft FL390 | 260° at 41 kt | −32 kt | -46 °C | 152 kt | 11 h 52 min | 12:15 pm CDT (17:15 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| SEA | used from 0 nm out; 25 nm from the line | 050/7 | 050/11 1° | 050/12 -5° | 030/31 -7° | 010/61 -15° | 010/69 -26° | 360/73 -40° | 360/62 -47° | 330/21 -43° |
| YKM | used from 50 nm out; 33 nm from the line | 070/10 | 040/15 -1° | 020/27 -8° | 030/25 -13° | 020/48 -20° | 010/83 -27° | 010/77 -37° | 010/49 -40° | 350/14 -41° |
| LWS | used from 149 nm out; 52 nm from the line | 070/10 | 080/12 -2° | 030/12 -6° | 080/7 -10° | 170/34 -21° | 160/46 -32° | 200/33 -35° | 220/22 -35° | 230/18 -38° |
| DLN | used from 349 nm out; 51 nm from the line | 090/6 -6° | 240/22 -4° | 210/34 -16° | 210/62 -25° | 210/66 -34° | 210/82 -36° | 220/77 -42° | ||
| LND | used from 548 nm out; 93 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° | ||
| BFF | used from 747 nm out; 94 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° | |
| GRI | used from 996 nm out; 91 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° | |
| SLN | used from 1146 nm out; 51 nm from the line | 210/53 | 230/41 20° | 240/26 14° | 230/16 8° | 240/25 -7° | 240/35 -19° | 250/61 -30° | 260/65 -38° | 260/56 -49° |
| MKC | used from 1246 nm out; 56 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° |
| SGF | used from 1345 nm out; 43 nm from the line | 230/33 | 230/28 15° | 250/20 13° | 240/18 7° | 250/20 -6° | 250/24 -17° | 280/42 -31° | 280/49 -40° | 290/46 -51° |
| CGI | used from 1495 nm out; 100 nm from the line | 240/20 | 270/15 15° | 280/15 11° | 300/13 6° | 290/20 -6° | 280/24 -18° | 300/34 -32° | 300/47 -41° | 310/49 -51° |
| MEM | used from 1544 nm out; 59 nm from the line | 230/19 | 260/16 15° | 270/17 12° | 300/13 6° | 300/15 -5° | 300/26 -18° | 300/34 -32° | 300/41 -40° | 310/46 -52° |
| HSV | used from 1694 nm out; 67 nm from the line | 310/20 | 330/20 16° | 320/27 11° | 340/23 5° | 320/23 -7° | 340/30 -17° | 320/50 -33° | 330/61 -41° | 340/41 -50° |
| BHM | used from 1744 nm out; 35 nm from the line | 310/19 | 330/20 17° | 320/28 11° | 340/21 6° | 310/22 -7° | 330/33 -17° | 330/50 -32° | 330/57 -41° | 330/41 -50° |
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 | from the east (090°) at 6 knots | 10+ mi | none | 432 ft | 9:53 pm PDT (04:53 UTC) |
| MWH Moses Lake, WA | 120 nm out, 19 nm north of the line, tower | VFR Sky: overcast at 9,000 feet | from the northwest (310°) at 4 knots | 10+ mi | 9,000 ft | 1,188 ft | 04:52 UTC |
| LWS Lewiston, ID | 229 nm out, 3 nm west of the line, tower | VFR Sky: overcast at 5,500 feet | calm | 10+ mi | 5,500 ft | 1,442 ft | 04:56 UTC |
| DLN Dillon, MT | 428 nm out, 3 nm northwest of the line | IFR Sky: a few clouds at 400 feet, overcast at 900 feet Weather: light snow, mist | calm | 1 mi | 900 ft | 5,244 ft | 05:11 UTC |
| CPR Casper, WY | 717 nm out, 23 nm south of the line, tower | VFR Sky: a broken layer at 7,000 feet, a broken layer at 9,000 feet, overcast at 11,000 feet | from the northwest (320°) at 6 knots | 10+ mi | 7,000 ft | 5,344 ft | 04:53 UTC |
| GUR Guernsey, WY | 807 nm out, 24 nm southwest of the line, tower | VFR Sky: a few clouds at 11,000 feet, a broken layer at 14,000 feet Weather: light rain | from the east-southeast (110°) at 4 knots | 10+ mi | 14,000 ft | 4,401 ft | 05:13 UTC |
| HDE Holdrege, NE | 1076 nm out, 3 nm west of the line | VFR | from the south (170°) at 10 knots | 10+ mi | none | 2,313 ft | 05:15 UTC |
| MHK Manhattan, KS | 1216 nm out, 6 nm south of the line, tower | VFR | from the south-southwest (200°) at 13 knots, gusting to 21 | 10+ mi | none | 1,066 ft | 04:52 UTC |
| FOE Topeka, KS | 1265 nm out, 11 nm northeast of the line, tower | VFR | from the south (190°) at 12 knots, gusting to 22 | 10+ mi | none | 1,077 ft | 04:53 UTC |
| NQA Millington, TN | 1614 nm out, 8 nm southwest of the line, tower | VFR | calm | 10+ mi | none | 322 ft | 23:50 UTC |
| OLV Olive Branch, MS | 1634 nm out, 24 nm southwest of the line, tower | VFR | from the south (180°) at 5 knots | 10+ mi | none | 401 ft | 05:15 UTC |
| BHM Birmingham, AL | destination | VFR | calm | 10+ mi | none | 650 ft | 11:53 pm CDT (04:53 UTC) |
The highest airport on this list sits at 5,344 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At BHM when you get there the forecast at the estimated arrival, 12:15 pm CDT (17:15 UTC)
Wind from the west-northwest at 5 knots, visibility more than 6 miles, clear skies VFR
The whole forecast for BHM
- From Mon 1:00 am CDT (06:00 UTC): wind calm, visibility more than 6 miles, a few clouds at 25,000 feet
- At times between Mon 4:00 am CDT (09:00 UTC) and 8:00 am CDT (13:00 UTC): visibility 4 miles, mist
- From Mon 11:00 am CDT (16:00 UTC): wind from the west-northwest at 5 knots, visibility more than 6 miles, clear skies
The forecast for SEA, the departure
- From Sun 11:00 pm PDT (06:00 UTC): wind from the east-northeast at 6 knots, visibility more than 6 miles, clear skies
- From Mon 3:00 am PDT (10:00 UTC): wind from the southeast at 4 knots, visibility more than 6 miles, patches of fog, clear skies
- From Mon 9:00 am PDT (16:00 UTC): wind from the south-southeast at 4 knots, visibility more than 6 miles, clear skies
- From Mon 11:00 am PDT (18:00 UTC): wind from the west at 6 knots, visibility more than 6 miles, clear skies
- From Mon 8:00 pm PDT (03:00 UTC): wind from the south at 4 knots, visibility more than 6 miles, scattered 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 SEA 6:27 pm PDT (01:27 UTC), at BHM 6:17 pm CDT (23:17 UTC) (civil twilight ends 6:42 pm CDT (23:42 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: Seattle-Tacoma International, Birmingham-Shuttlesworth International.
