Central Nebraska Regional to St. George Regional GRI → SGU
746 nautical miles (859 statute miles) west on a straight line, true course 257°, about 250° magnetic at the departure end (variation 7E). At 120 knots that is 7 h 15 min at the quickest height in today's winds (8,500 ft, a 17-knot headwind), arriving about 4:54 pm MDT (22:54 UTC). Right now GRI is VFR, wind from the southwest (220°) at 13 knots; SGU 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: 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
- AIRMET TANGO 2W: 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 first 60 nm of the route.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Over the route from 199 to 716 nm out.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Over the route from 279 to 488 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 328 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). Near the route, 428 nm along the route.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the route from 498 to 667 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the last 239 nm of the route.
- AIRMET SIERRA 2E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the last 109 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 GRI.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- urgent C172 at 6,700 ft, 3 nm west, 7:54 am CDT (12:54 UTC): remarks: low-level wind shear + 10 knots during the climb. 308 nm along the route, 3 nm west of the line.
as filed, and in English
APA UUA /OV KAPA/TM 1254/FL067/TP C172/RM LLWS +/- 10 KTS DURC
- Report
- an urgent report filed through APA
- Where
- over KAPA
- Time
- 12:54 UTC
- Height
- at 6,700 ft
- Aircraft
- C172
- Remarks
- low-level wind shear + 10 knots during the climb
- urgent FA7X at 6,800 ft, 3 nm west, 7:40 am CDT (12:40 UTC): remarks: low-level wind shear a 40-knot loss of airspeed knots during the climb runway 35R. 308 nm along the route, 3 nm west of the line.
as filed, and in English
APA UUA /OV KAPA/TM 1240/FL068/TP FA7X/RM LLWS -40 KTS DURC RY 35R
- Report
- an urgent report filed through APA
- Where
- over KAPA
- Time
- 12:40 UTC
- Height
- at 6,800 ft
- Aircraft
- FA7X
- Remarks
- low-level wind shear a 40-knot loss of airspeed knots during the climb runway 35R
- urgent E75L at 6,600 ft, 46 nm south, 9:08 am CDT (14:08 UTC): light turbulence, remarks: low-level wind shear a 25-knot gain of airspeed during the climb 17L. 318 nm along the route, 46 nm south of the line.
as filed, and in English
COS UUA /OV COS/TM 1408/FL066/TP E75L/TB LGT/RM LLWS +25KTS DURC 17L
- Report
- an urgent report filed through COS
- Where
- over COS
- Time
- 14:08 UTC
- Height
- at 6,600 ft
- Aircraft
- E75L
- Turbulence
- light
- Remarks
- low-level wind shear a 25-knot gain of airspeed during the climb 17L
- B738 descending, 21 nm north, 10:20 am CDT (15:20 UTC): moderate turbulence from 12,000 ft to 18,000 ft. 269 nm along the route, 21 nm north of the line.
as filed, and in English
DEN UA /OV 30NE DEN/TM 1520/FLDURD/TP B738/TB MOD 180-120
- Report
- a routine report filed through DEN
- Where
- 30NE den
- Time
- 15:20 UTC
- Height
- during the descent
- Aircraft
- B738
- Turbulence
- moderate from 18,000 ft to 12,000 ft
- B38M at 12,000 ft, 3 nm northeast, 9:07 am CDT (14:07 UTC): moderate turbulence, remarks: from 11,000 ft to 12,000 ft. 279 nm along the route, 3 nm northeast of the line.
as filed, and in English
DEN UA /OV DEN090025/TM 1407/FL120/TP B38M/TB MOD/RM 110-120
- Report
- a routine report filed through DEN
- Where
- 25 nm east (090°) of DEN
- Time
- 14:07 UTC
- Height
- at 12,000 ft
- Aircraft
- B38M
- Turbulence
- moderate
- Remarks
- from 11,000 ft to 12,000 ft
- C172 at 7,500 ft, 6 nm southeast, 10:27 am CDT (15:27 UTC): moderate turbulence. 308 nm along the route, 6 nm southeast of the line.
as filed, and in English
APA UA /OV APA100008/TM 1527/FL075/TP C172/TB CONT MOD
- Report
- a routine report filed through APA
- Where
- 8 nm east (100°) of APA
- Time
- 15:27 UTC
- Height
- at 7,500 ft
- Aircraft
- C172
- Turbulence
- continuous moderate
- B737 at 21,000 ft, 34 nm north, 9:05 am CDT (14:05 UTC): moderate turbulence, remarks: mountain wave a 30-knot gain of airspeed from 25,000 ft to 15,000 ft during the descent. 308 nm along the route, 34 nm north of the line.
as filed, and in English
DEN UA /OV DEN310025/TM 1405/FL210/TP B737/TB MOD TURB/RM MTN WAVE +30KTS 250-150 DURD
- Report
- a routine report filed through DEN
- Where
- 25 nm northwest (310°) of DEN
- Time
- 14:05 UTC
- Height
- at 21,000 ft
- Aircraft
- B737
- Turbulence
- moderate turbulence
- Remarks
- mountain wave a 30-knot gain of airspeed from 25,000 ft to 15,000 ft during the descent
- B738 descending, 49 nm north, 8:01 am CDT (13:01 UTC): moderate turbulence from 11,000 ft to 20,000 ft. 308 nm along the route, 49 nm north of the line.
as filed, and in English
DEN UA /OV 40NW DEN/TM 1301/FLDURD/TP B738/TB MOD 200-110
- Report
- a routine report filed through DEN
- Where
- 40NW den
- Time
- 13:01 UTC
- Height
- during the descent
- Aircraft
- B738
- Turbulence
- moderate from 20,000 ft to 11,000 ft
- C172 at 9,500 ft, 34 nm south, 7:43 am CDT (12:43 UTC): moderate chop turbulence. 308 nm along the route, 34 nm south of the line.
as filed, and in English
COS UA /OV BRK348/005/TM 1243/FL095/TP C172/TB TB MOD CHOP
- Report
- a routine report filed through COS
- Where
- BRK348/005
- Time
- 12:43 UTC
- Height
- at 9,500 ft
- Aircraft
- C172
- Turbulence
- turbulence moderate chop
- B738 descending, 3 nm southeast, 7:55 am CDT (12:55 UTC): moderate turbulence from 16,000 ft to 20,000 ft. 338 nm along the route, 3 nm southeast of the line.
as filed, and in English
DEN UA /OV 40SW DEN/TM 1255/FLDURD/TP B738/TB MOD 200-160
- Report
- a routine report filed through DEN
- Where
- 40SW den
- Time
- 12:55 UTC
- Height
- during the descent
- Aircraft
- B738
- Turbulence
- moderate from 20,000 ft to 16,000 ft
- B38M at 39,000 ft, 9 nm southeast, 7:43 am CDT (12:43 UTC): light chop turbulence. 40 nm along the route, 9 nm southeast of the line.
as filed, and in English
HSI UA /OV HSI270030/TM 1243/FL390/TP B38M/TB CONS LGT CHOP
- Report
- a routine report filed through HSI
- Where
- 30 nm west (270°) of HSI
- Time
- 12:43 UTC
- Height
- at 39,000 ft
- Aircraft
- B38M
- Turbulence
- continuous light chop
- B738 at 38,000 ft, 32 nm north, 8:09 am CDT (13:09 UTC): light chop turbulence, remarks: ZDVWC-35. 109 nm along the route, 32 nm north of the line.
as filed, and in English
LBF UA /OV LBF/TM 1309/FL380/TP B738/TB CONS LGT CHOP/RM -ZDVWC-35
- Report
- a routine report filed through LBF
- Where
- over LBF
- Time
- 13:09 UTC
- Height
- at 38,000 ft
- Aircraft
- B738
- Turbulence
- continuous light chop
- Remarks
- ZDVWC-35
- C56X at 6,000 ft, 23 nm north, 9:37 am CDT (14:37 UTC): clear from 6,000 ft to 60,000 ft, remarks: ZDVWC-19. 179 nm along the route, 23 nm north of the line.
as filed, and in English
HEQ UA /OV HEQ/TM 1437/FL060/TP C56X/SK SKC/RM -ZDVWC-19
- Report
- a routine report filed through HEQ
- Where
- over HEQ
- Time
- 14:37 UTC
- Height
- at 6,000 ft
- Aircraft
- C56X
- Sky
- clear
- Remarks
- ZDVWC-19
- B737 at 18,000 ft, 31 nm northwest, 8:50 am CDT (13:50 UTC): light to moderate turbulence, remarks: from the surface to 18,000 ft. 289 nm along the route, 31 nm northwest of the line.
as filed, and in English
DEN UA /OV DEN350020/TM 1350/FL180/TP B737/TB LGT-MOD/RM SFC-180
- Report
- a routine report filed through DEN
- Where
- 20 nm north (350°) of DEN
- Time
- 13:50 UTC
- Height
- at 18,000 ft
- Aircraft
- B737
- Turbulence
- light to moderate
- Remarks
- from the surface to 18,000 ft
11 more routine reports are on the map.
Winds aloft along the route, and the time en route the forecast for use 14:00–21:00 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 5 forecast points nearest it (GRI, GLD, DEN, GJT, BCE). A plus sign is a headwind, a minus sign a tailwind.
| Height | Average wind | Head- or tailwind | Temperature | Ground speed | Time en route | Arrival |
|---|---|---|---|---|---|---|
| 8,500 ft | 220° at 21 kt | +17 kt | 9 °C | 103 kt | 7 h 15 min | 4:54 pm MDT (22:54 UTC) |
| 10,500 ft | 220° at 26 kt | +22 kt | 5 °C | 98 kt | 7 h 37 min | 5:16 pm MDT (23:16 UTC) |
| 12,500 ft | 220° at 30 kt | +26 kt | 2 °C | 94 kt | 7 h 56 min | 5:35 pm MDT (23:35 UTC) |
| 14,500 ft | 220° at 35 kt | +30 kt | -3 °C | 90 kt | 8 h 17 min | 5:56 pm MDT (23:56 UTC) |
| 16,500 ft | 220° at 40 kt | +34 kt | -8 °C | 86 kt | 8 h 40 min | 6:19 pm MDT (00:19 UTC) |
| 18,000 ft FL180 | 220° at 43 kt | +37 kt | -11 °C | 83 kt | 8 h 59 min | 6:38 pm MDT (00:38 UTC) |
| 24,000 ft FL240 | 220° at 60 kt | +53 kt | -22 °C | 67 kt | 11 h 08 min | 8:47 pm MDT (02:47 UTC) |
| 30,000 ft FL300 | 230° at 77 kt | +72 kt | -30 °C | 48 kt | 15 h 32 min | 1:11 am MDT (07:11 UTC) |
| 34,000 ft FL340 | 240° at 86 kt | +84 kt | -38 °C | 36 kt | 20 h 43 min | 6:22 am MDT (12:22 UTC) |
| 39,000 ft FL390 | 240° at 85 kt | +82 kt | -47 °C | 38 kt | 19 h 38 min | 5:17 am MDT (11:17 UTC) |
Based on data from the 12th at 12:00 UTC; valid on the 12th at 18:00 UTC for use 14:00 to 21:00 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| GRI | used from 0 nm out; 25 nm from the line | 270/26 19° | 230/33 13° | 230/39 8° | 230/43 -9° | 240/55 -21° | 250/76 -28° | 260/84 -36° | 260/68 -47° | |
| GLD | used from 100 nm out; 73 nm from the line | 240/22 | 250/24 13° | 250/39 6° | 230/42 -8° | 230/55 -21° | 240/87 -30° | 240/96 -36° | 250/93 -48° | |
| DEN | used from 249 nm out; 28 nm from the line | 230/7 11° | 230/13 4° | 230/40 -9° | 230/48 -20° | 240/66 -32° | 240/88 -38° | 230/100 -47° | ||
| GJT | used from 398 nm out; 66 nm from the line | 190/30 6° | 200/35 0° | 220/50 -13° | 220/69 -22° | 220/81 -30° | 230/84 -39° | 230/88 -47° | ||
| BCE | used from 597 nm out; 50 nm from the line | 200/31 -2° | 190/46 -14° | 210/72 -24° | 210/87 -30° | 220/89 -38° | 220/78 -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 | Wind | Visibility | Ceiling | Elevation | Reported |
|---|---|---|---|---|---|---|---|
| GRI Grand Island, NE | departure | VFR | from the southwest (220°) at 13 knots | 10+ mi | none | 1,847 ft | 9:53 am CDT (14:53 UTC) |
| LXN Lexington, NE | 70 nm out, 6 nm north of the line | VFR | from the west (280°) at 11 knots | 10+ mi | none | 2,412 ft | 15:15 UTC |
| IML Imperial, NE | 149 nm out, 12 nm northwest of the line | VFR | from the west-northwest (300°) at 4 knots | 10+ mi | none | 3,276 ft | 14:53 UTC |
| RYA Wray, CO | 189 nm out, 5 nm southeast of the line | no report just now | 3,677 ft | ||||
| CFO Denver, CO | 289 nm out, 9 nm northwest of the line, tower | VFR | from the southwest (220°) at 15 knots | 10+ mi | none | 5,515 ft | 14:47 UTC |
| APA Denver, CO | 308 nm out, 3 nm west of the line, tower | VFR Sky: a few clouds at 10,000 feet | from the south (190°) at 9 knots | 10+ mi | none | 5,884 ft | 14:53 UTC |
| ASE Aspen, CO | 408 nm out, 10 nm north of the line, tower | VFR | from the south-southwest (210°) at 6 knots | 10+ mi | none | 7,837 ft | 14:53 UTC |
| AJZ Delta, CO | 468 nm out, 3 nm north of the line | reported, no category | from the north-northwest (330°) at 3 knots | 7,500 ft | 5,193 ft | 15:15 UTC | |
| BCE Bryce Canyon, UT | 667 nm out, 13 nm northwest of the line | marginal VFR Sky: a few clouds at 700 feet, a broken layer at 1,200 feet, overcast at 2,600 feet Weather: rain, mist | from the southeast (140°) at 7 knots | 4 mi | 1,200 ft | 7,589 ft | 15:23 UTC |
| AZC Colorado City, AZ | 726 nm out, 14 nm southeast of the line | VFR Sky: scattered clouds at 3,400 feet, a broken layer at 4,200 feet, overcast at 5,000 feet Weather: rain | from the southeast (130°) at 13 knots | 10+ mi | 4,200 ft | 4,873 ft | 15:15 UTC |
| SGU St George, UT | destination | VFR Sky: scattered clouds at 4,300 feet, a broken layer at 7,000 feet, overcast at 8,500 feet Weather: light rain | from the southeast (130°) at 7 knots | 10+ mi | 7,000 ft | 2,883 ft | 8:56 am MDT (14:56 UTC) |
The highest airport on this list sits at 7,837 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At SGU when you get there the forecast at the estimated arrival, 4:54 pm MDT (22:54 UTC)
Wind from the south-southwest at 14 knots, gusting to 24, visibility more than 6 miles, light rain showers, scattered clouds at 4,000 feet, a broken layer at 6,000 feet VFR
The whole forecast for SGU
- From Mon 6:00 am MDT (12:00 UTC): wind from the south-southeast at 8 knots, visibility more than 6 miles, scattered clouds at 6,000 feet, a broken layer at 8,000 feet
- 30% chance between Mon 6:00 am MDT (12:00 UTC) and 8:00 am MDT (14:00 UTC): wind variable at 10 knots, gusting to 20, light rain showers, a broken layer at 4,000 feet
- From Mon 8:00 am MDT (14:00 UTC): wind from the south-southeast at 12 knots, gusting to 20, visibility more than 6 miles, light rain showers, scattered clouds at 3,000 feet, a broken layer at 6,000 feet
- From Mon 4:00 pm MDT (22:00 UTC): wind from the south-southwest at 14 knots, gusting to 24, visibility more than 6 miles, light rain showers, scattered clouds at 4,000 feet, a broken layer at 6,000 feet
- From Mon 10:00 pm MDT (04:00 UTC): wind from the southeast at 8 knots, visibility more than 6 miles, light rain showers, scattered clouds at 4,000 feet, a broken layer at 6,000 feet
The forecast for GRI, the departure
- From Mon 7:00 am CDT (12:00 UTC): wind from the south at 10 knots, visibility more than 6 miles, low-level wind shear, a few clouds at 25,000 feet
- From Mon 9:00 am CDT (14:00 UTC): wind from the south-southwest at 10 knots, visibility more than 6 miles, a few clouds at 25,000 feet
- From Mon 11:00 am CDT (16:00 UTC): wind from the west-southwest at 13 knots, gusting to 21, visibility more than 6 miles, a few clouds at 25,000 feet
- From Mon 1:00 pm CDT (18:00 UTC): wind from the west at 12 knots, visibility more than 6 miles, a few clouds at 25,000 feet
- From Mon 6:00 pm CDT (23:00 UTC): wind light and variable, visibility more than 6 miles, clear skies
- From Mon 10:00 pm CDT (03:00 UTC): wind from the north at 12 knots, visibility more than 6 miles, scattered clouds at 10,000 feet
Temporary flight restrictions on the line or within 25 nm of it
- 6/8784 LAKE GEORGE, CO, Sunday, October 11, 2026 through Tuesday, October 13, 2026 UTC 24 nm from the route, 348 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 13 October · ZDV
Daylight
Sunset at GRI 6:57 pm CDT (23:57 UTC), at SGU 7:00 pm MDT (01:00 UTC) (civil twilight ends 7:26 pm MDT (01:26 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: Central Nebraska Regional, St. George Regional.