Plan a flight · Sun 8:48 pm EDT (00:48 UTC)

Miami-Opa Locka Executive to Helena Regional OPF → HLN

1,952 nautical miles (2,247 statute miles) northwest on a straight line, true course 318°, about 324° magnetic at the departure end (variation 6W). At 120 knots that is 16 h 08 min at the quickest height in today's winds (4,500 ft, a 1-knot tailwind), arriving about 10:56 am MDT (16:56 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 W70W: thunderstorms (a convective SIGMET) up to 32,000 ft, moving from the southwest at 40 knots, until 9:55 pm EDT (01:55 UTC). Over the route from 1634 to 1793 nm out.
as issued
```
WSUS33 KKCI 112355
MKCW WST 112355
CONVECTIVE SIGMET 70W
VALID UNTIL 0155Z
MT WY
FROM 30SSW MLS-60WNW BFF-40SSE OCS-10S BPI-10S BIL-30SSW MLS
AREA TS MOV FROM 22040KT. TOPS TO FL320.
```
AIRMET TANGO 6W: moderate turbulence above 18,000 ft from 28,000 ft to 40,000 ft. Over the route from 468 to 588 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the last 498 nm of the route.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 1673 to 1843 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 last 269 nm of the route.
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 1703 to 1793 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 239 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 OPF.

Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first

B738 at 19,000 ft, 13 nm northeast, 6:05 pm EDT (22:05 UTC): moderate turbulence. At the departure end, 13 nm northeast of the line.
as filed, and in English
```
PBI UA /OV PBI260030/TM 2205/FL190/TP B738/TB CONS MOD
```
Report
a routine report filed through PBI
Where
30 nm west (260°) of PBI
Time
22:05 UTC
Height
at 19,000 ft
Aircraft
B738
Turbulence
continuous moderate
B737 at 26,000 ft, 38 nm southwest, 7:19 pm EDT (23:19 UTC): moderate chop turbulence from 26,000 ft to 28,000 ft, remarks: ZTLFD-11. 498 nm along the route, 38 nm southwest of the line.
as filed, and in English
```
GZH UA /OV MVC/TM 2319/FL260/TP B737/TB CONS MOD CHOP 260-280/RM ZTLFD-11
```
Report
a routine report filed through GZH
Where
over MVC
Time
23:19 UTC
Height
at 26,000 ft
Aircraft
B737
Turbulence
continuous moderate chop from 26,000 ft to 28,000 ft
Remarks
ZTLFD-11
A21N at 33,000 ft, 15 nm southwest, 6:51 pm EDT (22:51 UTC): moderate chop turbulence, remarks: ZTLFD-11. 518 nm along the route, 15 nm southwest of the line.
as filed, and in English
```
GZH UA /OV MVC360030/TM 2251/FL330/TP A21N/TB MOD CHOP/RM ZTLFD-11
```
Report
a routine report filed through GZH
Where
30 nm north (360°) of MVC
Time
22:51 UTC
Height
at 33,000 ft
Aircraft
A21N
Turbulence
moderate chop
Remarks
ZTLFD-11
UAL1340 at 40,000 ft, 36 nm southwest, 8:18 pm EDT (00:18 UTC): moderate chop turbulence, wind 244° at 70 knots. 1355 nm along the route, 36 nm southwest of the line.
as filed, and in English
```
ARP UAL1340 4046N 10049W 0018 F400 244/070KT TB OCNL MOD CHOP IC
```
Report
a routine report filed through ARP
BCS3 climbing, 39 nm northeast, 6:05 pm EDT (22:05 UTC): a broken layer above 3,500 ft. At the departure end, 39 nm northeast of the line.
as filed, and in English
```
PBI UA /OV DJT280005/TM 2205/FLDURC/TP BCS3/SK BKN035
```
Report
a routine report filed through PBI
Where
5 nm west (280°) of DJT
Time
22:05 UTC
Height
during the climb
Aircraft
BCS3
Sky
a broken layer from 3,500 ft
B738 at 19,000 ft, 50 nm northeast, 8:21 pm EDT (00:21 UTC): light chop turbulence above 19,000 ft. At the departure end, 50 nm northeast of the line.
as filed, and in English
```
PBI UA /OV PBI344028/TM 0021/FL190/TP B738/TB CONS LGT CHOP 190
```
Report
a routine report filed through PBI
Where
28 nm north (344°) of PBI
Time
00:21 UTC
Height
at 19,000 ft
Aircraft
B738
Turbulence
continuous light chop at 19,000 ft
BCS3 at 24,000 ft, 43 nm northeast, 6:19 pm EDT (22:19 UTC): light to moderate turbulence. At the departure end, 43 nm northeast of the line.
as filed, and in English
```
VRB UA /OV TRV180035/TM 2219/FL240/TP BCS3/TB CONS LGT-MOD
```
Report
a routine report filed through VRB
Where
35 nm south (180°) of TRV
Time
22:19 UTC
Height
at 24,000 ft
Aircraft
BCS3
Turbulence
continuous light to moderate
GLF6 at 17,000 ft, 8 nm southwest, 7:00 pm EDT (23:00 UTC): no turbulence, clear from 17,000 ft to 60,000 ft. 80 nm along the route, 8 nm southwest of the line.
as filed, and in English
```
RSW UA /OV LBV180002/TM 2300/FL170/TP GLF6/SK SKC/TB NEG
```
Report
a routine report filed through RSW
Where
2 nm south (180°) of LBV
Time
23:00 UTC
Height
at 17,000 ft
Aircraft
GLF6
Sky
clear
Turbulence
none
PAY1 at 12,000 ft, 4 nm northwest, 6:59 pm EDT (22:59 UTC): no turbulence. 90 nm along the route, 4 nm northwest of the line.
as filed, and in English
```
RSW UA /OV RSW030035/TM 2259/FL120/TP PAY1/TB NEG
```
Report
a routine report filed through RSW
Where
35 nm northeast (030°) of RSW
Time
22:59 UTC
Height
at 12,000 ft
Aircraft
PAY1
Turbulence
none
C172 at 4,000 ft, 41 nm northeast, 7:30 pm EDT (23:30 UTC): clear from 4,000 ft to 60,000 ft. 120 nm along the route, 41 nm northeast of the line.
as filed, and in English
```
MLB UA /OV MLB252035/TM 2330/FL040/TP C172/SK SKC 040
```
Report
a routine report filed through MLB
Where
35 nm west (252°) of MLB
Time
23:30 UTC
Height
at 4,000 ft
Aircraft
C172
Sky
clear from 4,000 ft
MD11 at 35,000 ft, 16 nm southwest, 7:18 pm EDT (23:18 UTC): no turbulence. 139 nm along the route, 16 nm southwest of the line.
as filed, and in English
```
SRQ UA /OV SRQ080015/TM 2318/FL350/TP MD11/TB NEG
```
Report
a routine report filed through SRQ
Where
15 nm east (080°) of SRQ
Time
23:18 UTC
Height
at 35,000 ft
Aircraft
MD11
Turbulence
none
B38M at 27,000 ft, 27 nm southwest, 6:00 pm EDT (22:00 UTC): light chop turbulence. 169 nm along the route, 27 nm southwest of the line.
as filed, and in English
```
SRQ UA /OV SRQ330018/TM 2200/FL270/TP B38M/TB LGT CHOP
```
Report
a routine report filed through SRQ
Where
18 nm northwest (330°) of SRQ
Time
22:00 UTC
Height
at 27,000 ft
Aircraft
B38M
Turbulence
light chop
PAY1 at 21,000 ft, 45 nm northeast, 6:39 pm EDT (22:39 UTC): light rime icing, -11 °C. 189 nm along the route, 45 nm northeast of the line.
as filed, and in English
```
OCF UA /OV OCF160030/TM 2239/FL210/TP PAY1/TA M11/IC LGT RIME
```
Report
a routine report filed through OCF
Where
30 nm south (160°) of OCF
Time
22:39 UTC
Height
at 21,000 ft
Aircraft
PAY1
Temperature
−11 °C
Icing
light rime
E170 at 20,000 ft, 17 nm northeast, 6:02 pm EDT (22:02 UTC): light chop turbulence. 229 nm along the route, 17 nm northeast of the line.
as filed, and in English
```
CTY UA /OV CTY180040/TM 2202/FL200/TP E170/TB LGT CHOP
```
Report
a routine report filed through CTY
Where
40 nm south (180°) of CTY
Time
22:02 UTC
Height
at 20,000 ft
Aircraft
E170
Turbulence
light chop

11 more routine reports are on the map.

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 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 16 forecast points nearest it (MIA, PIE, TLH, MGM, BHM, MEM, LIT, SGF, MKC, SLN, GRI, BFF, RAP, MLS, BIL, GTF). 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	210° at 5 kt	−1 kt	14 °C	121 kt	16 h 08 min	10:56 am MDT (16:56 UTC)
6,500 ft	250° at 6 kt	+3 kt	16 °C	117 kt	16 h 41 min	11:29 am MDT (17:29 UTC)
8,500 ft	250° at 11 kt	+6 kt	13 °C	114 kt	17 h 07 min	11:55 am MDT (17:55 UTC)
10,500 ft	260° at 14 kt	+9 kt	8 °C	111 kt	17 h 35 min	12:23 pm MDT (18:23 UTC)
12,500 ft	260° at 16 kt	+10 kt	5 °C	110 kt	17 h 45 min	12:33 pm MDT (18:33 UTC)
14,500 ft	260° at 18 kt	+11 kt	0 °C	109 kt	17 h 54 min	12:42 pm MDT (18:42 UTC)
16,500 ft	260° at 20 kt	+13 kt	-4 °C	107 kt	18 h 15 min	1:03 pm MDT (19:03 UTC)
18,000 ft FL180	260° at 21 kt	+13 kt	-7 °C	107 kt	18 h 15 min	1:03 pm MDT (19:03 UTC)
24,000 ft FL240	250° at 27 kt	+16 kt	-18 °C	104 kt	18 h 46 min	1:34 pm MDT (19:34 UTC)
30,000 ft FL300	250° at 32 kt	+17 kt	-33 °C	103 kt	18 h 57 min	1:45 pm MDT (19:45 UTC)
34,000 ft FL340	250° at 37 kt	+21 kt	-41 °C	99 kt	19 h 43 min	2:31 pm MDT (20:31 UTC)
39,000 ft FL390	260° at 38 kt	+26 kt	-50 °C	94 kt	20 h 46 min	3:34 pm MDT (21:34 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
MIA	used from 0 nm out; 30 nm from the line	190/8	L/V 18°	180/5 14°	L/V 9°	190/10 -5°	160/10 -16°	150/13 -30°	160/26 -40°	150/23 -52°
PIE	used from 100 nm out; 53 nm from the line	310/7	270/12 17°	270/14 13°	260/14 8°	240/22 -5°	230/24 -16°	220/26 -31°	200/31 -41°	180/33 -53°
TLH	used from 249 nm out; 75 nm from the line	300/17	340/32 17°	320/27 13°	300/27 8°	280/23 -7°	250/37 -17°	230/44 -33°	220/53 -41°	220/48 -51°
MGM	used from 398 nm out; 82 nm from the line	300/16	330/30 16°	330/34 11°	320/31 7°	310/28 -7°	320/29 -17°	290/25 -34°	300/28 -41°	320/28 -50°
BHM	used from 548 nm out; 74 nm from the line	300/16	330/32 16°	320/37 11°	330/37 6°	310/33 -7°	310/30 -18°	320/40 -34°	330/43 -41°	330/30 -49°
MEM	used from 647 nm out; 75 nm from the line	240/9	280/14 17°	280/20 12°	290/25 5°	320/25 -6°	330/31 -18°	320/52 -32°	330/58 -41°	320/42 -50°
LIT	used from 797 nm out; 62 nm from the line	220/12	250/12 17°	250/18 12°	260/22 6°	310/14 -5°	310/25 -17°	310/40 -31°	310/38 -41°	310/46 -52°
SGF	used from 847 nm out; 83 nm from the line	210/21	210/21 16°	240/28 12°	260/24 7°	280/21 -6°	280/26 -18°	290/38 -31°	290/37 -41°	300/49 -52°
MKC	used from 1046 nm out; 64 nm from the line	200/28	220/30 16°	270/20 11°	280/22 7°	260/27 -6°	270/27 -18°	280/38 -32°	270/38 -40°	280/50 -52°
SLN	used from 1096 nm out; 63 nm from the line	190/37	220/39 20°	240/31 14°	250/24 7°	260/25 -7°	250/26 -17°	250/44 -31°	260/47 -40°	260/47 -50°
GRI	used from 1245 nm out; 42 nm from the line		210/31 19°	240/21 14°	240/17 6°	260/27 -7°	260/34 -18°	240/45 -32°	250/56 -40°	260/62 -51°
BFF	used from 1395 nm out; 94 nm from the line		120/24	180/31 13°	210/26 7°	230/25 -7°	240/41 -20°	230/52 -36°	250/56 -41°	260/57 -45°
RAP	used from 1544 nm out; 69 nm from the line		120/15 12°	180/22 11°	220/26 5°	230/35 -9°	240/40 -22°	240/50 -37°	240/51 -41°	240/47 -47°
MLS	used from 1644 nm out; 134 nm from the line		120/22 5°	170/18 4°	200/33 1°	230/49 -10°	230/58 -21°	220/54 -37°	230/64 -44°	250/74 -49°
BIL	used from 1693 nm out; 91 nm from the line		080/24	130/14 -1°	180/33 0°	210/43 -10°	220/58 -21°	200/55 -36°	220/75 -44°	240/83 -48°
GTF	used from 1893 nm out; 70 nm from the line		070/21	080/18 -6°	120/5 -5°	180/30 -14°	200/53 -24°	210/80 -38°	220/83 -44°	230/68 -46°

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	Elevation
OPF Miami, FL	departure	no report just now	8 ft
TPA Tampa, FL	169 nm out, 6 nm west of the line, tower	no report just now	26 ft
MAI Marianna, FL	388 nm out, 15 nm northeast of the line	no report just now	110 ft
SEM Selma, AL	518 nm out, 14 nm northeast of the line, tower	no report just now	166 ft
GTR Columbus/W Point/Starkville, MS	628 nm out, 5 nm northeast of the line, tower	no report just now	264 ft
BBG Branson, MO	916 nm out, 12 nm southwest of the line, tower	no report just now	1,302 ft
MHK Manhattan, KS	1146 nm out, 3 nm northeast of the line, tower	no report just now	1,066 ft
CYW Clay Center, KS	1175 nm out, 3 nm southeast of the line	no report just now	1,208 ft
CDR Chadron, NE	1514 nm out, 7 nm northeast of the line	no report just now	3,297 ft
BYG Buffalo, WY	1693 nm out, 4 nm southwest of the line	no report just now	4,970 ft
LVM Livingston, MT	1873 nm out, 17 nm south of the line	no report just now	4,659 ft
HLN Helena, MT	destination	no report just now	3,877 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 HLN when you get there the forecast at the estimated arrival, 10:56 am MDT (16:56 UTC)

HLN 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 OPF 6:56 pm EDT (22:56 UTC), at HLN 6:46 pm MDT (00:46 UTC) (civil twilight ends 7:17 pm MDT (01:17 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

Radar now, the Southeast · loop National Weather Service

Radar now, the lower Mississippi valley · loop National Weather Service

Radar now, the upper Mississippi valley · loop National Weather Service

Radar, the whole country · loop National Weather Service

Surface analysis now Weather Prediction Center

Forecast chart, 12 hours ahead Weather Prediction Center

Forecast chart, 24 hours ahead Weather Prediction Center

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: Miami-Opa Locka Executive, Helena Regional.