Waco Regional to Robert Gray Army Airfield ACT → GRK
45 nautical miles (52 statute miles) southwest on a straight line, true course 223°, about 216° magnetic at the departure end (variation 7E). At 120 knots that is 20 min at the quickest height in today's winds (39,000 ft, a 16-knot tailwind), arriving about 9:24 am CDT (14:24 UTC). Right now ACT is marginal VFR, wind from the south-southeast (160°) at 7 knots; GRK is VFR, wind from the southeast (140°) at 8 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
No SIGMET or AIRMET covers any part of this route right now.
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 ACT.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- TBM8 at 30,000 ft, 23 nm north, 8:43 am CDT (13:43 UTC): no turbulence, remarks: ZFW62. At the departure end, 23 nm north of the line.
as filed, and in English
ACT UA /OV ACT340020/TM 1343/FL300/TP TBM8/TB NEG/RM ZFW62
- Report
- a routine report filed through ACT
- Where
- 20 nm north (340°) of ACT
- Time
- 13:43 UTC
- Height
- at 30,000 ft
- Aircraft
- TBM8
- Turbulence
- none
- Remarks
- ZFW62
- A321 at 4,500 ft, 43 nm south, 8:15 am CDT (13:15 UTC): remarks: on final during the descent. At the destination end, 43 nm south of the line.
as filed, and in English
AUS UA /OV 10N KAUS/TM 1315/FL045/TP A321/SK T045/RM ON FINAL DURD
- Report
- a routine report filed through AUS
- Where
- 10N KAUS
- Time
- 13:15 UTC
- Height
- at 4,500 ft
- Aircraft
- A321
- Sky
- T045
- Remarks
- on final during the descent
- PC12 descending, 25 nm south, 8:02 am CDT (13:02 UTC): a broken layer above 2,200 ft. At the destination end, 25 nm south of the line.
as filed, and in English
GTU UA /OV 5NM N/TM 1302/FLDURD/TP PC12/SK BKN022 - TOPUNK
- Report
- a routine report filed through GTU
- Where
- 5NM north
- Time
- 13:02 UTC
- Height
- during the descent
- Aircraft
- PC12
- Sky
- BKN022 topunk
- BE20 climbing, 25 nm south, 7:22 am CDT (12:22 UTC): overcast from 2,800 ft to 4,000 ft, remarks: higher layer above. At the destination end, 25 nm south of the line.
as filed, and in English
GTU UA /OV 3NM SW/TM 1222/FLDURC/TP BE20/SK OVC028 - TOP040/RM HIGHER LAYER ABOVE
- Report
- a routine report filed through GTU
- Where
- 3NM southwest
- Time
- 12:22 UTC
- Height
- during the climb
- Aircraft
- BE20
- Sky
- overcast from 2,800 ft, tops 4,000 ft
- Remarks
- higher layer above
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 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 1 forecast point nearest it (CLL). 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 | 180° at 22 kt | +15 kt | 105 kt | 26 min | 9:30 am CDT (14:30 UTC) | |
| 6,500 ft | 170° at 19 kt | +12 kt | 18 °C | 108 kt | 25 min | 9:29 am CDT (14:29 UTC) |
| 8,500 ft | 180° at 12 kt | +8 kt | 15 °C | 112 kt | 24 min | 9:28 am CDT (14:28 UTC) |
| 10,500 ft | 200° at 8 kt | +7 kt | 11 °C | 113 kt | 24 min | 9:28 am CDT (14:28 UTC) |
| 12,500 ft | 230° at 8 kt | +8 kt | 7 °C | 112 kt | 24 min | 9:28 am CDT (14:28 UTC) |
| 14,500 ft | 230° at 11 kt | +11 kt | 2 °C | 109 kt | 25 min | 9:29 am CDT (14:29 UTC) |
| 16,500 ft | 230° at 14 kt | +14 kt | -2 °C | 106 kt | 25 min | 9:29 am CDT (14:29 UTC) |
| 18,000 ft FL180 | 230° at 16 kt | +16 kt | -6 °C | 104 kt | 26 min | 9:30 am CDT (14:30 UTC) |
| 24,000 ft FL240 | 260° at 20 kt | +16 kt | -13 °C | 104 kt | 26 min | 9:30 am CDT (14:30 UTC) |
| 30,000 ft FL300 | 290° at 23 kt | +9 kt | -29 °C | 111 kt | 24 min | 9:28 am CDT (14:28 UTC) |
| 34,000 ft FL340 | 320° at 21 kt | −2 kt | -39 °C | 122 kt | 22 min | 9:26 am CDT (14:26 UTC) |
| 39,000 ft FL390 | 340° at 35 kt | −16 kt | -51 °C | 136 kt | 20 min | 9:24 am CDT (14:24 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; 75 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° |
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 |
|---|---|---|---|---|---|---|---|
| ACT Waco, TX | departure | marginal VFR Sky: overcast at 2,800 feet | from the south-southeast (160°) at 7 knots | 10+ mi | 2,800 ft | 516 ft | 8:51 am CDT (13:51 UTC) |
| TPL Temple, TX | 27 nm out, 12 nm southeast of the line | marginal VFR Sky: a broken layer at 1,800 feet, a broken layer at 2,300 feet | from the south-southeast (150°) at 7 knots | 10+ mi | 1,800 ft | 682 ft | 13:51 UTC |
| GRK Fort Hood (Killeen), TX | destination | VFR Sky: scattered clouds at 1,300 feet, overcast at 16,000 feet | from the southeast (140°) at 8 knots | 9 mi | 16,000 ft | 1,015 ft | 8:55 am CDT (13:55 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 GRK when you get there the forecast at the estimated arrival, 9:24 am CDT (14:24 UTC)
Wind from the south-southeast at 9 knots, scattered clouds at 1,500 feet, a broken layer at 15,000 feet VFR
At times between Mon 7:00 am CDT (12:00 UTC) and 11:00 am CDT (16:00 UTC): a broken layer at 1,500 feet marginal VFR
The whole forecast for GRK
- From Mon 7:00 am CDT (12:00 UTC): wind from the south-southeast at 9 knots, scattered clouds at 1,500 feet, a broken layer at 15,000 feet
- At times between Mon 7:00 am CDT (12:00 UTC) and 11:00 am CDT (16:00 UTC): 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
The forecast for ACT, the departure
- From Mon 7:00 am CDT (12:00 UTC): wind from the south at 11 knots, visibility more than 6 miles, a few clouds at 2,500 feet
- At times between Mon 7:00 am CDT (12:00 UTC) and 11:00 am CDT (16:00 UTC): a broken layer at 2,000 feet
- From Mon 12:00 pm CDT (17:00 UTC): wind from the south at 10 knots, gusting to 20, visibility more than 6 miles, scattered clouds at 15,000 feet
- From Mon 7:00 pm CDT (00:00 UTC): wind from the south at 10 knots, visibility more than 6 miles, a few clouds at 6,000 feet
- From Tue 3:00 am CDT (08:00 UTC): wind from the south at 10 knots, visibility more than 6 miles, a broken layer at 2,000 feet
Temporary flight restrictions on the line or within 25 nm of it
- 6/0543 MCGREGOR, TX on the route, 18 nm along the route · security · ZFW
Daylight
Sunset at ACT 6:59 pm CDT (23:59 UTC), at GRK 7:02 pm CDT (00:02 UTC) (civil twilight ends 7:26 pm CDT (00:26 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: Waco Regional, Robert Gray Army Airfield.





