Robert Gray Army Airfield to MC Allen International GRK → MFE
294 nautical miles (339 statute miles) south on a straight line, true course 184°, about 180° magnetic at the departure end (variation 4E). At 120 knots that is 2 h 11 min at the quickest height in today's winds (39,000 ft, a 15-knot tailwind), arriving about 3:59 am CDT (08:59 UTC), after sunset at the destination. Right now GRK is VFR, wind from the south-southeast (150°) at 12 knots; MFE is VFR, wind from the southeast (130°) at 7 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: 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
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 GRK.
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 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 3 forecast points nearest it (SAT, CRP, BRO). 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 | 160° at 21 kt | +19 kt | 101 kt | 2 h 55 min | 4:43 am CDT (09:43 UTC) | |
| 6,500 ft | 180° at 18 kt | +18 kt | 18 °C | 102 kt | 2 h 53 min | 4:41 am CDT (09:41 UTC) |
| 8,500 ft | 180° at 16 kt | +16 kt | 15 °C | 104 kt | 2 h 50 min | 4:38 am CDT (09:38 UTC) |
| 10,500 ft | 190° at 14 kt | +14 kt | 12 °C | 106 kt | 2 h 46 min | 4:34 am CDT (09:34 UTC) |
| 12,500 ft | 200° at 12 kt | +12 kt | 8 °C | 108 kt | 2 h 43 min | 4:31 am CDT (09:31 UTC) |
| 14,500 ft | 210° at 11 kt | +10 kt | 4 °C | 110 kt | 2 h 40 min | 4:28 am CDT (09:28 UTC) |
| 16,500 ft | 220° at 9 kt | +8 kt | -1 °C | 112 kt | 2 h 38 min | 4:26 am CDT (09:26 UTC) |
| 18,000 ft FL180 | 230° at 9 kt | +6 kt | -5 °C | 114 kt | 2 h 35 min | 4:23 am CDT (09:23 UTC) |
| 24,000 ft FL240 | 200° at 6 kt | +6 kt | -14 °C | 114 kt | 2 h 35 min | 4:23 am CDT (09:23 UTC) |
| 30,000 ft FL300 | 310° at 2 kt | −1 kt | -29 °C | 121 kt | 2 h 26 min | 4:14 am CDT (09:14 UTC) |
| 34,000 ft FL340 | 230° at 1 kt | +1 kt | -39 °C | 119 kt | 2 h 28 min | 4:16 am CDT (09:16 UTC) |
| 39,000 ft FL390 | 350° at 15 kt | −15 kt | -51 °C | 135 kt | 2 h 11 min | 3:59 am CDT (08:59 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| SAT | used from 0 nm out; 75 nm from the line | 150/26 | 180/18 19° | 180/18 14° | 200/14 9° | 230/16 -6° | 210/9 -13° | 270/8 -29° | 280/6 -39° | 340/19 -51° |
| CRP | used from 147 nm out; 40 nm from the line | 150/24 | 180/19 19° | 190/13 14° | 200/14 9° | 230/5 -4° | 170/6 -14° | 360/6 -29° | L/V -40° | 350/18 -52° |
| BRO | used from 245 nm out; 58 nm from the line | 150/22 | 160/18 18° | 160/13 14° | 150/9 10° | 050/5 -3° | L/V -15° | 100/13 -29° | 120/15 -40° | 080/9 -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: a broken layer at 18,000 feet | from the south-southeast (150°) at 12 knots | 10+ mi | 18,000 ft | 1,015 ft | 12:55 am CDT (05:55 UTC) |
| GTU Georgetown, TX | 20 nm out, 10 nm east of the line, tower | VFR Sky: a broken layer at 19,000 feet | from the south-southeast (160°) at 9 knots | 10+ mi | 19,000 ft | 789 ft | 05:55 UTC |
| HYI Austin, TX | 69 nm out, 4 nm southeast of the line, tower | VFR | from the south-southeast (150°) at 4 knots | 10+ mi | none | 594 ft | 05:56 UTC |
| BEA Beeville, TX | 157 nm out, 15 nm east of the line | marginal VFR Sky: a broken layer at 2,400 feet, a broken layer at 2,800 feet | from the east (100°) at 3 knots | 10+ mi | 2,400 ft | 272 ft | 06:35 UTC |
| ALI Alice, TX | 196 nm out, 6 nm southeast of the line | VFR | from the southeast (130°) at 3 knots | 10+ mi | none | 178 ft | 05:53 UTC |
| BKS Falfurrias, TX | 236 nm out, 4 nm northeast of the line | VFR | calm | 10+ mi | none | 111 ft | 06:35 UTC |
| EBG Edinburg, TX | 275 nm out, 6 nm southeast of the line | VFR | from the southeast (130°) at 3 knots | 10+ mi | none | 75 ft | 06:35 UTC |
| MFE Mc Allen, TX | destination | VFR | from the southeast (130°) at 7 knots | 10+ mi | none | 107 ft | 12:53 am CDT (05:53 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 MFE when you get there the forecast at the estimated arrival, 3:59 am CDT (08:59 UTC)
Wind light and variable, visibility more than 6 miles, a few clouds at 2,500 feet VFR
The whole forecast for MFE
- From Mon 1:00 am CDT (06:00 UTC): wind light and variable, visibility more than 6 miles, a few clouds at 2,500 feet
- From Mon 10:00 am CDT (15:00 UTC): wind from the south-southeast at 8 knots, visibility more than 6 miles, a few clouds at 25,000 feet
- From Mon 3:00 pm CDT (20:00 UTC): wind from the south-southeast at 12 knots, gusting to 20, visibility more than 6 miles, a few clouds at 7,000 feet
- From Mon 11:00 pm CDT (04:00 UTC): wind from the southeast at 7 knots, visibility more than 6 miles, a few clouds at 7,000 feet
The forecast for GRK, the departure
- From Sun 7:00 pm CDT (00:00 UTC): wind from the south-southeast at 9 knots, scattered clouds at 6,000 feet
- Changing between Mon 3:00 am CDT (08:00 UTC) and 4:00 am CDT (09:00 UTC) to: wind from the southeast at 6 knots, a broken layer at 1,500 feet
- Changing between Mon 4:00 pm CDT (21:00 UTC) and 5:00 pm CDT (22:00 UTC) to: wind from the south-southeast at 12 knots, a broken layer at 5,000 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 1,500 feet
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 GRK 7:02 pm CDT (00:02 UTC), at MFE 7:07 pm CDT (00:07 UTC) (civil twilight ends 7:30 pm CDT (00:30 UTC)). At 120 knots the arrival at MFE is before sunrise there (7:30 am CDT (12:30 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, MC Allen International.