Helena Regional to Miami International HLN → MIA
1,957 nautical miles (2,252 statute miles) southeast on a straight line, true course 119°, about 107° magnetic at the departure end (variation 12E). At 120 knots that is 13 h 08 min at the quickest height in today's winds (34,000 ft, a 29-knot tailwind), arriving about 2:58 pm EDT (18:58 UTC). 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
- SIGMET 8C: thunderstorms (a convective SIGMET) up to 32,000 ft, moving from the southwest at 40 knots, until 12:55 am MDT (06:55 UTC). Over the route from 349 to 399 nm out.
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 SIERRA 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the first 479 nm of the route.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the first 130 nm of the route.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the first 40 nm of the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 250 nm of the route.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 140 to 310 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 180 to 379 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 38,000 ft. Over the route from 190 to 449 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 220 to 399 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 469 to 988 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 HLN.
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 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 18 forecast points nearest it (GTF, BIL, RAP, BFF, ONL, GRI, SLN, MKC, SGF, LIT, MEM, JAN, BHM, MGM, TLH, PIE, MLB, MIA). 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 | 250° at 15 kt | −7 kt | 127 kt | 15 h 25 min | 5:15 pm EDT (21:15 UTC) | |
| 5,500 ft | 240° at 10 kt | −3 kt | 18 °C | 123 kt | 15 h 55 min | 5:45 pm EDT (21:45 UTC) |
| 7,500 ft | 250° at 11 kt | −5 kt | 15 °C | 125 kt | 15 h 39 min | 5:29 pm EDT (21:29 UTC) |
| 9,500 ft | 250° at 13 kt | −7 kt | 10 °C | 127 kt | 15 h 25 min | 5:15 pm EDT (21:15 UTC) |
| 11,500 ft | 240° at 14 kt | −6 kt | 7 °C | 126 kt | 15 h 32 min | 5:22 pm EDT (21:22 UTC) |
| 13,500 ft | 240° at 16 kt | −7 kt | 2 °C | 127 kt | 15 h 25 min | 5:15 pm EDT (21:15 UTC) |
| 15,500 ft | 240° at 19 kt | −8 kt | -2 °C | 128 kt | 15 h 17 min | 5:07 pm EDT (21:07 UTC) |
| 17,500 ft | 240° at 21 kt | −10 kt | -7 °C | 130 kt | 15 h 03 min | 4:53 pm EDT (20:53 UTC) |
| 18,000 ft FL180 | 240° at 22 kt | −10 kt | -7 °C | 130 kt | 15 h 03 min | 4:53 pm EDT (20:53 UTC) |
| 24,000 ft FL240 | 250° at 25 kt | −13 kt | -19 °C | 133 kt | 14 h 43 min | 4:33 pm EDT (20:33 UTC) |
| 30,000 ft FL300 | 260° at 31 kt | −20 kt | -33 °C | 140 kt | 13 h 59 min | 3:49 pm EDT (19:49 UTC) |
| 34,000 ft FL340 | 260° at 39 kt | −29 kt | -40 °C | 149 kt | 13 h 08 min | 2:58 pm EDT (18:58 UTC) |
| 39,000 ft FL390 | 260° at 39 kt | −29 kt | -49 °C | 149 kt | 13 h 08 min | 2:58 pm EDT (18:58 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| GTF | used from 0 nm out; 65 nm from the line | 070/11 | 080/15 -7° | 110/19 -9° | 190/25 -14° | 200/34 -23° | 200/54 -39° | 220/66 -40° | 220/77 -44° | |
| BIL | used from 50 nm out; 79 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° | |
| RAP | used from 300 nm out; 102 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° | |
| BFF | used from 399 nm out; 62 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° | |
| ONL | used from 549 nm out; 111 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° | |
| GRI | used from 599 nm out; 71 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 749 nm out; 41 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 849 nm out; 67 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 899 nm out; 77 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° |
| LIT | used from 1098 nm out; 61 nm from the line | 220/21 | 230/17 16° | 250/24 12° | 260/15 7° | 260/13 -5° | 280/25 -16° | 290/35 -30° | 300/42 -40° | 300/40 -52° |
| MEM | used from 1148 nm out; 48 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° |
| JAN | used from 1298 nm out; 93 nm from the line | 230/10 | 270/13 18° | 270/11 12° | 310/11 6° | 300/15 -4° | 300/22 -16° | 310/33 -31° | 320/37 -41° | 330/41 -52° |
| BHM | used from 1348 nm out; 79 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° |
| MGM | used from 1398 nm out; 48 nm from the line | 310/19 | 340/24 17° | 340/28 11° | 330/16 7° | 300/23 -7° | 320/32 -16° | 330/46 -33° | 330/55 -42° | 330/41 -50° |
| TLH | used from 1548 nm out; 47 nm from the line | 320/18 | 350/31 18° | 340/24 13° | 310/17 8° | 280/22 -7° | 300/25 -17° | 320/28 -33° | 320/24 -41° | 320/25 -50° |
| PIE | used from 1697 nm out; 55 nm from the line | 350/6 | L/V 18° | 290/6 14° | 280/9 9° | 250/18 -6° | 250/23 -17° | 240/30 -31° | 220/31 -41° | 220/30 -52° |
| MLB | used from 1847 nm out; 85 nm from the line | 230/6 | 230/12 17° | 240/13 12° | 240/14 7° | 240/20 -5° | 240/24 -16° | 210/21 -32° | 190/33 -41° | 200/36 -52° |
| MIA | used from 1897 nm out; 35 nm from the line | 150/7 | 140/5 17° | 160/5 14° | L/V 9° | 230/8 -5° | 230/8 -17° | 150/11 -32° | 150/25 -41° | 180/29 -51° |
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 |
|---|---|---|---|---|---|---|---|
| HLN Helena, MT | departure | no report just now | 3,877 ft | ||||
| LVM Livingston, MT | 80 nm out, 17 nm south of the line | no report just now | 4,659 ft | ||||
| BYG Buffalo, WY | 260 nm out, 3 nm southwest of the line | no report just now | 4,970 ft | ||||
| CDR Chadron, NE | 439 nm out, 7 nm northeast of the line | no report just now | 3,297 ft | ||||
| CYW Clay Center, KS | 779 nm out, 3 nm east of the line | no report just now | 1,208 ft | ||||
| MHK Manhattan, KS | 809 nm out, 5 nm north of the line, tower | no report just now | 1,066 ft | ||||
| BBG Branson, MO | 1038 nm out, 10 nm west of the line, tower | no report just now | 1,302 ft | ||||
| GTR Columbus/W Point/Starkville, MS | 1328 nm out, 8 nm northeast of the line, tower | no report just now | 264 ft | ||||
| SEM Selma, AL | 1428 nm out, 17 nm northeast of the line, tower | no report just now | 166 ft | ||||
| BKV Brooksville, FL | 1757 nm out, 24 nm northeast of the line, tower | no report just now | 76 ft | ||||
| TPA Tampa, FL | 1777 nm out, 2 nm southeast of the line, tower | no report just now | 26 ft | ||||
| MIA Miami, FL | destination | no report just now | 9 ft |
The highest airport on this list sits at 4,970 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At MIA when you get there the forecast at the estimated arrival, 2:58 pm EDT (18:58 UTC)
MIA has no terminal forecast; use the nearest airport that does.
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 HLN 6:46 pm MDT (00:46 UTC), at MIA 6:56 pm EDT (22:56 UTC) (civil twilight ends 7:19 pm EDT (23:19 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: Helena Regional, Miami International.