Huntsville Intl-Carl T Jones Field to Seattle-Tacoma International HSV → SEA
1,763 nautical miles (2,029 statute miles) northwest on a straight line, true course 307°, about 311° magnetic at the departure end (variation 4W). At 120 knots that is 14 h 49 min at the quickest height in today's winds (4,500 ft, a 1-knot headwind), arriving about 2:04 pm PDT (21:04 UTC). Right now HSV is VFR, wind from the east (100°) at 3 knots; SEA is VFR, wind from the east-southeast (110°) at 6 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: 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 SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the first 10 nm of the route.
- 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 369 to 877 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 877 to 1455 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 38,000 ft. Over the route from 897 to 1166 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 956 to 1146 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 956 to 1186 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 1026 to 1255 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1066 to 1554 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 1265 to 1644 nm out.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 1315 to 1494 nm out.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the last 179 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 HSV.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- B737 , 38 nm north, 12:31 am CDT (05:31 UTC): remarks: saw the light at 500FT braking good no icing. 1295 nm along the route, 38 nm north of the line.
as filed, and in English
BZN UA /OV BZN/TM 0531/FLBURD/TP B737/RM SAW THE LIGHT AT 500FT. BRAKING GOOD. NEG ICING
- Report
- a routine report filed through BZN
- Where
- over BZN
- Time
- 05:31 UTC
- Height
- at BURD
- Aircraft
- B737
- Remarks
- saw the light at 500FT braking good no icing
- GLF5 descending, 38 nm north, 10:46 pm CDT (03:46 UTC): remarks: broke out 100-150FT above ground. 1295 nm along the route, 38 nm north of the line.
as filed, and in English
BZN UA /OV BZN/TM 0346/FLDURD/TP GLF5/RM BROKE OUT 100-150FT AGL
- Report
- a routine report filed through BZN
- Where
- over BZN
- Time
- 03:46 UTC
- Height
- during the descent
- Aircraft
- GLF5
- Remarks
- broke out 100-150FT above ground
- E75L at 1,500 ft, 39 nm south, 11:49 pm CDT (04:49 UTC): remarks: low-level wind shear loss of 8 knots on final. 1614 nm along the route, 39 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
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 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 17 forecast points nearest it (HSV, MEM, CGI, SGF, COU, MKC, SLN, GRI, ONL, BFF, RAP, LND, BIL, DLN, LWS, YKM, SEA). 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 | 220° at 14 kt | +1 kt | 19 °C | 119 kt | 14 h 49 min | 2:04 pm PDT (21:04 UTC) |
| 6,500 ft | 230° at 12 kt | +3 kt | 11 °C | 117 kt | 15 h 04 min | 2:19 pm PDT (21:19 UTC) |
| 8,500 ft | 240° at 10 kt | +4 kt | 6 °C | 116 kt | 15 h 12 min | 2:27 pm PDT (21:27 UTC) |
| 10,500 ft | 240° at 11 kt | +5 kt | 4 °C | 115 kt | 15 h 20 min | 2:35 pm PDT (21:35 UTC) |
| 12,500 ft | 240° at 12 kt | +6 kt | 1 °C | 114 kt | 15 h 28 min | 2:43 pm PDT (21:43 UTC) |
| 14,500 ft | 240° at 14 kt | +7 kt | -4 °C | 113 kt | 15 h 36 min | 2:51 pm PDT (21:51 UTC) |
| 16,500 ft | 240° at 16 kt | +9 kt | -8 °C | 111 kt | 15 h 53 min | 3:08 pm PDT (22:08 UTC) |
| 18,000 ft FL180 | 240° at 17 kt | +10 kt | -11 °C | 110 kt | 16 h 02 min | 3:17 pm PDT (22:17 UTC) |
| 24,000 ft FL240 | 240° at 22 kt | +11 kt | -22 °C | 109 kt | 16 h 10 min | 3:25 pm PDT (22:25 UTC) |
| 30,000 ft FL300 | 250° at 31 kt | +21 kt | -33 °C | 99 kt | 17 h 48 min | 5:03 pm PDT (00:03 UTC) |
| 34,000 ft FL340 | 260° at 39 kt | +30 kt | -39 °C | 90 kt | 19 h 35 min | 6:50 pm PDT (01:50 UTC) |
| 39,000 ft FL390 | 260° at 42 kt | +34 kt | -46 °C | 86 kt | 20 h 30 min | 7:45 pm PDT (02:45 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| HSV | used from 0 nm out; 25 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° |
| MEM | used from 100 nm out; 75 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° |
| CGI | used from 149 nm out; 53 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° |
| SGF | used from 299 nm out; 62 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° |
| COU | used from 349 nm out; 57 nm from the line | 230/31 | 230/30 15° | 260/16 11° | 270/14 6° | 260/24 -6° | 270/27 -18° | 270/37 -32° | 280/49 -41° | 290/56 -51° |
| MKC | used from 399 nm out; 39 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° |
| SLN | used from 548 nm out; 81 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° |
| GRI | used from 598 nm out; 46 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° | |
| ONL | used from 747 nm out; 100 nm from the line | 210/31 20° | 230/27 13° | 230/18 7° | 220/19 -8° | 240/26 -20° | 250/44 -35° | 270/52 -39° | 260/57 -47° | |
| BFF | used from 797 nm out; 91 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° | |
| RAP | used from 996 nm out; 117 nm from the line | 180/23 12° | 200/38 13° | 210/38 6° | 220/28 -10° | 230/34 -21° | 230/37 -36° | 250/52 -38° | 250/59 -46° | |
| LND | used from 1046 nm out; 107 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° | ||
| BIL | used from 1146 nm out; 83 nm from the line | 080/13 | 180/9 -2° | 210/38 0° | 220/51 -11° | 210/46 -22° | 210/58 -35° | 230/73 -39° | 230/72 -45° | |
| DLN | used from 1245 nm out; 69 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° | ||
| LWS | used from 1445 nm out; 68 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° |
| YKM | used from 1594 nm out; 71 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° |
| SEA | used from 1694 nm out; 45 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° |
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 |
|---|---|---|---|---|---|---|---|
| HSV Huntsville, AL | departure | VFR | from the east (100°) at 3 knots | 10+ mi | none | 628 ft | 12:53 am CDT (05:53 UTC) |
| MKL Jackson, TN | 120 nm out, 15 nm southwest of the line, tower | VFR | calm | 10+ mi | none | 434 ft | 05:53 UTC |
| TBN Fort Leonard Wood, MO | 319 nm out, 3 nm north of the line, tower | VFR | from the south (190°) at 4 knots | 10+ mi | none | 1,159 ft | 05:55 UTC |
| OJC Olathe, KS | 458 nm out, 8 nm southwest of the line, tower | VFR | from the south-southwest (200°) at 9 knots, gusting to 17 | 10+ mi | none | 1,096 ft | 05:53 UTC |
| GRI Grand Island, NE | 667 nm out, 17 nm northeast of the line, tower | VFR | from the south (180°) at 12 knots | 10+ mi | none | 1,847 ft | 05:53 UTC |
| BBW Broken Bow, NE | 727 nm out, 13 nm north of the line | VFR | from the north (360°) at 3 knots | 10+ mi | none | 2,546 ft | 05:53 UTC |
| LSK Lusk, WY | 956 nm out, 14 nm southwest of the line | no report just now | 4,966 ft | ||||
| COD Cody, WY | 1186 nm out, 3 nm east of the line | IFR Sky: a broken layer at 800 feet, a broken layer at 2,100 feet, overcast at 2,600 feet Weather: unknown precipitation | from the north-northeast (030°) at 7 knots | 10+ mi | 800 ft | 5,102 ft | 06:08 UTC |
| EKS Ennis, MT | 1305 nm out, 3 nm northeast of the line | IFR Sky: a few clouds at 300 feet, a broken layer at 800 feet, overcast at 1,100 feet Weather: light snow, mist | from the north (360°) at 6 knots | 2 mi | 800 ft | 5,432 ft | 05:55 UTC |
| LWS Lewiston, ID | 1534 nm out, 8 nm southwest of the line, tower | VFR Sky: overcast at 6,000 feet | from the northeast (040°) at 3 knots | 10+ mi | 6,000 ft | 1,442 ft | 05:56 UTC |
| MWH Moses Lake, WA | 1644 nm out, 15 nm northeast of the line, tower | VFR Sky: overcast at 12,000 feet | from the north-northwest (330°) at 4 knots | 10+ mi | 12,000 ft | 1,188 ft | 05:52 UTC |
| SEA Seattle, WA | destination | VFR | from the east-southeast (110°) at 6 knots | 10+ mi | none | 432 ft | 10:53 pm PDT (05:53 UTC) |
The highest airport on this list sits at 5,432 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At SEA when you get there the forecast at the estimated arrival, 2:04 pm PDT (21:04 UTC)
Wind from the west at 6 knots, visibility more than 6 miles, clear skies VFR
The whole forecast for SEA
- 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
The forecast for HSV, the departure
- From Mon 1:00 am CDT (06:00 UTC): wind light and variable, visibility 6 miles, mist, clear skies
- At times between Mon 3:00 am CDT (08:00 UTC) and 7:00 am CDT (12:00 UTC): visibility 2 miles, mist, clear skies
- From Mon 10:00 am CDT (15:00 UTC): wind from the west at 5 knots, visibility more than 6 miles, clear skies
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 HSV 6:16 pm CDT (23:16 UTC), at SEA 6:27 pm PDT (01:27 UTC) (civil twilight ends 6:58 pm PDT (01:58 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: Huntsville Intl-Carl T Jones Field, Seattle-Tacoma International.