Robert Gray Army Airfield to Miami-Opa Locka Executive GRK → OPF
975 nautical miles (1,122 statute miles) east on a straight line, true course 104°, about 100° magnetic at the departure end (variation 4E). At 120 knots that is 6 h 55 min at the quickest height in today's winds (30,000 ft, a 21-knot tailwind), arriving about 2:32 pm EDT (18:32 UTC). Right now GRK is VFR, wind from the southeast (140°) at 7 knots; OPF is VFR, wind from the north (350°) at 4 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: 5 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 1E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, mist, fog). Near the route, 289 nm along 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 GRK.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- B738 at 38,000 ft, 49 nm south, 6:22 am CDT (11:22 UTC): no turbulence, remarks: zhu. At the departure end, 49 nm south of the line.
as filed, and in English
AUS UA /OV KCWK360015/TM 1122/FL380/TP B738/TB NEG/RM ZHU
- Report
- a routine report filed through AUS
- Where
- 15 nm north (360°) of KCWK
- Time
- 11:22 UTC
- Height
- at 38,000 ft
- Aircraft
- B738
- Turbulence
- none
- Remarks
- zhu
- B748 at 40,000 ft, 49 nm south, 6:17 am CDT (11:17 UTC): no turbulence, remarks: smooth zhu. At the departure end, 49 nm south of the line.
as filed, and in English
AUS UA /OV KCWK270015/TM 1117/FL400/TP B748/TB NEG/RM SMOOTH ZHU
- Report
- a routine report filed through AUS
- Where
- 15 nm west (270°) of KCWK
- Time
- 11:17 UTC
- Height
- at 40,000 ft
- Aircraft
- B748
- Turbulence
- none
- Remarks
- smooth zhu
- SF30 at 21,000 ft, 32 nm south, 4:35 am CDT (09:35 UTC): light rime icing, -10 °C, remarks: zhu. 139 nm along the route, 32 nm south of the line.
as filed, and in English
IAH UA /OV DAS02002/TM 0935/FL210/TP SF30/TA M10/IC LGT RIME/RM ZHU
- Report
- a routine report filed through IAH
- Where
- DAS02002
- Time
- 09:35 UTC
- Height
- at 21,000 ft
- Aircraft
- SF30
- Temperature
- −10 °C
- Icing
- light rime
- Remarks
- zhu
- B738 at 40,000 ft, 47 nm north, 6:03 am CDT (11:03 UTC): light chop turbulence, remarks: zhu. 398 nm along the route, 47 nm north of the line.
as filed, and in English
MSY UA /OV KHRV067024/TM 1103/FL400/TP B738/TB CONS LGT CHOP/RM ZHU
- Report
- a routine report filed through MSY
- Where
- 24 nm northeast (067°) of KHRV
- Time
- 11:03 UTC
- Height
- at 40,000 ft
- Aircraft
- B738
- Turbulence
- continuous light chop
- Remarks
- zhu
- B738 at 36,000 ft, 47 nm north, 5:58 am CDT (10:58 UTC): no turbulence, remarks: zhu. 398 nm along the route, 47 nm north of the line.
as filed, and in English
MSY UA /OV KHRV339030/TM 1058/FL360/TP B738/TB NEG/RM ZHU
- Report
- a routine report filed through MSY
- Where
- 30 nm north (339°) of KHRV
- Time
- 10:58 UTC
- Height
- at 36,000 ft
- Aircraft
- B738
- Turbulence
- none
- Remarks
- zhu
- B737 at 34,000 ft, 15 nm northeast, 6:04 am CDT (11:04 UTC): light chop turbulence. 627 nm along the route, 15 nm northeast of the line.
as filed, and in English
SRQ UA /OV SRQ290200/TM 1104/FL340/TP B737/TB OCNL LGT CHOP
- Report
- a routine report filed through SRQ
- Where
- 200 nm west (290°) of SRQ
- Time
- 11:04 UTC
- Height
- at 34,000 ft
- Aircraft
- B737
- Turbulence
- occasional light chop
- A20N at 26,000 ft, 32 nm north, 5:37 am CDT (10:37 UTC): light chop turbulence. 627 nm along the route, 32 nm north of the line.
as filed, and in English
SRQ UA /OV SRQ295200/TM 1037/FL260/TP A20N/TB OCNL LGT CHOP
- Report
- a routine report filed through SRQ
- Where
- 200 nm northwest (295°) of SRQ
- Time
- 10:37 UTC
- Height
- at 26,000 ft
- Aircraft
- A20N
- Turbulence
- occasional light chop
- B789 at 38,000 ft, 10 nm south, 4:54 am CDT (09:54 UTC): light to moderate chop turbulence. 657 nm along the route, 10 nm south of the line.
as filed, and in English
SRQ UA /OV SRQ281174/TM 0954/FL380/TP B789/TB CONS LGT OCNL MOD CHOP
- Report
- a routine report filed through SRQ
- Where
- 174 nm west (281°) of SRQ
- Time
- 09:54 UTC
- Height
- at 38,000 ft
- Aircraft
- B789
- Turbulence
- continuous light occasional moderate chop
- B38M at 21,000 ft, 14 nm southwest, 5:51 am CDT (10:51 UTC): no turbulence, remarks: during the descent. 896 nm along the route, 14 nm southwest of the line.
as filed, and in English
RSW UA /OV RSW180020/TM 1051/FL210/TP B38M/TB NEG/RM DURD
- Report
- a routine report filed through RSW
- Where
- 20 nm south (180°) of RSW
- Time
- 10:51 UTC
- Height
- at 21,000 ft
- Aircraft
- B38M
- Turbulence
- none
- Remarks
- during the descent
Winds aloft along the route, and the time en route the forecast for use 08:00–15:00 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 8 forecast points nearest it (CLL, HOU, LCH, MSY, MOB, TLH, PIE, 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 | 170° at 5 kt | +2 kt | 118 kt | 8 h 16 min | 3:53 pm EDT (19:53 UTC) | |
| 5,500 ft | 160° at 5 kt | +2 kt | 118 kt | 8 h 16 min | 3:53 pm EDT (19:53 UTC) | |
| 7,500 ft | 170° at 2 kt | +1 kt | 16 °C | 119 kt | 8 h 12 min | 3:49 pm EDT (19:49 UTC) |
| 9,500 ft | 270° at 1 kt | −1 kt | 12 °C | 121 kt | 8 h 03 min | 3:40 pm EDT (19:40 UTC) |
| 11,500 ft | 270° at 4 kt | −3 kt | 8 °C | 123 kt | 7 h 56 min | 3:33 pm EDT (19:33 UTC) |
| 13,500 ft | 270° at 6 kt | −6 kt | 4 °C | 126 kt | 7 h 44 min | 3:21 pm EDT (19:21 UTC) |
| 15,500 ft | 280° at 9 kt | −9 kt | 0 °C | 129 kt | 7 h 33 min | 3:10 pm EDT (19:10 UTC) |
| 17,500 ft | 280° at 12 kt | −12 kt | -5 °C | 132 kt | 7 h 23 min | 3:00 pm EDT (19:00 UTC) |
| 18,000 ft FL180 | 280° at 13 kt | −12 kt | -6 °C | 132 kt | 7 h 23 min | 3:00 pm EDT (19:00 UTC) |
| 24,000 ft FL240 | 290° at 16 kt | −16 kt | -16 °C | 136 kt | 7 h 10 min | 2:47 pm EDT (18:47 UTC) |
| 30,000 ft FL300 | 300° at 22 kt | −21 kt | -31 °C | 141 kt | 6 h 55 min | 2:32 pm EDT (18:32 UTC) |
| 34,000 ft FL340 | 320° at 22 kt | −19 kt | -41 °C | 139 kt | 7 h 01 min | 2:38 pm EDT (18:38 UTC) |
| 39,000 ft FL390 | 330° at 25 kt | −19 kt | -51 °C | 139 kt | 7 h 01 min | 2:38 pm EDT (18:38 UTC) |
Based on data from the 12th at 06:00 UTC; valid on the 12th at 12:00 UTC for use 08:00 to 15:00 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| CLL | used from 0 nm out; 56 nm from the line | 180/24 | 170/21 19° | 180/10 14° | 230/7 8° | 230/16 -6° | 260/20 -13° | 290/23 -29° | 320/21 -39° | 340/35 -51° |
| HOU | used from 149 nm out; 55 nm from the line | 180/22 | 180/20 16° | 170/7 15° | L/V 8° | 220/11 -6° | 260/15 -13° | 310/20 -30° | 320/20 -40° | 350/32 -51° |
| LCH | used from 199 nm out; 22 nm from the line | 170/21 | 160/23 18° | 170/13 13° | 170/6 8° | 300/12 -7° | 280/16 -14° | 320/27 -30° | 330/23 -41° | 340/38 -51° |
| MSY | used from 348 nm out; 51 nm from the line | 150/9 | 140/8 18° | L/V 13° | L/V 6° | 320/15 -5° | 310/16 -16° | 320/32 -31° | 340/35 -40° | 350/34 -52° |
| MOB | used from 498 nm out; 127 nm from the line | L/V | L/V 18° | 020/8 11° | L/V 6° | 330/12 -5° | 330/23 -17° | 330/30 -32° | 350/39 -41° | 340/40 -53° |
| TLH | used from 597 nm out; 179 nm from the line | 340/23 | 350/26 17° | 350/21 11° | 300/13 6° | 320/25 -6° | 340/35 -16° | 350/44 -32° | 360/51 -42° | 350/33 -52° |
| PIE | used from 647 nm out; 153 nm from the line | 360/10 | 340/12 18° | 330/9 13° | 290/12 8° | 260/21 -7° | 280/18 -18° | 250/20 -33° | 250/26 -41° | 250/20 -51° |
| MIA | used from 896 nm out; 57 nm from the line | L/V | L/V 17° | L/V 13° | L/V 8° | 270/6 -6° | 250/9 -17° | 290/17 -32° | 280/25 -41° | 280/21 -52° |
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 |
|---|---|---|---|---|---|---|---|
| GRK Fort Hood (Killeen), TX | departure | VFR Sky: scattered clouds at 2,500 feet, scattered clouds at 3,000 feet | from the southeast (140°) at 7 knots | 9 mi | none | 1,015 ft | 6:25 am CDT (11:25 UTC) |
| CLL College Station, TX | 80 nm out, 9 nm south of the line, tower | VFR Sky: scattered clouds at 2,700 feet | from the east (100°) at 3 knots | 10+ mi | none | 320 ft | 10:53 UTC |
| CXO Houston, TX | 129 nm out, 10 nm south of the line, tower | VFR | from the east-southeast (120°) at 3 knots | 10+ mi | none | 244 ft | 10:53 UTC |
| LCH Lake Charles, LA | 249 nm out, 9 nm north of the line, tower | VFR | calm | 10+ mi | none | 14 ft | 10:53 UTC |
| HUM Houma, LA | 378 nm out, 16 nm northeast of the line, tower | marginal VFR Sky: scattered clouds at 500 feet | calm | 3 mi | none | 8 ft | 10:47 UTC |
| GAO Galliano, LA | 408 nm out, 15 nm north of the line | VFR Weather: mist | from the north-northeast (020°) at 1 knots | 6 mi | none | 0 ft | 11:15 UTC |
| PGD Punta Gorda, FL | 866 nm out, 21 nm northeast of the line, tower | VFR | from the north-northeast (020°) at 5 knots | 10+ mi | none | 25 ft | 10:53 UTC |
| RSW Fort Myers, FL | 886 nm out, 5 nm northeast of the line, tower | VFR Sky: scattered clouds at 1,500 feet | from the north-northeast (030°) at 6 knots | 10+ mi | none | 29 ft | 11:16 UTC |
| OPF Miami, FL | destination | VFR | from the north (350°) at 4 knots | 10+ mi | none | 8 ft | 6:53 am EDT (10:53 UTC) |
The highest airport on this list sits at 1,015 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At OPF when you get there the forecast at the estimated arrival, 2:32 pm EDT (18:32 UTC)
Wind from the northeast at 10 knots, visibility more than 6 miles, scattered clouds at 2,500 feet VFR
The whole forecast for OPF
- From Mon 8:00 am EDT (12:00 UTC): wind from the north-northwest at 6 knots, visibility more than 6 miles, clear skies
- From Mon 12:00 pm EDT (16:00 UTC): wind from the northeast at 10 knots, visibility more than 6 miles, scattered clouds at 2,500 feet
- From Mon 9:00 pm EDT (01:00 UTC): wind light and variable, visibility more than 6 miles, a few clouds at 2,500 feet
The forecast for GRK, the departure
- From Mon 3:00 am CDT (08:00 UTC): wind from the south-southeast at 9 knots, a broken layer at 1,500 feet
- Changing between Mon 11:00 am CDT (16:00 UTC) and 12:00 pm CDT (17:00 UTC) to: wind from the south-southeast at 9 knots, a broken layer at 5,000 feet
- Changing between Mon 5:00 pm CDT (22:00 UTC) and 6:00 pm CDT (23:00 UTC) to: wind from the south-southeast at 9 knots, a broken layer at 10,000 feet
- Changing between Mon 10:00 pm CDT (03:00 UTC) and 11:00 pm CDT (04:00 UTC) to: wind from the south-southeast at 9 knots, a broken layer at 1,000 feet
Temporary flight restrictions on the line or within 25 nm of it
- 6/0543 MCGREGOR, TX 23 nm from the route, at the departure end · security · ZFW
Daylight
Sunset at GRK 7:02 pm CDT (00:02 UTC), at OPF 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: Robert Gray Army Airfield, Miami-Opa Locka Executive.