Denver International to Northeast Wyoming Regional DEN → GCC
272 nautical miles (313 statute miles) north on a straight line, true course 352°, about 344° magnetic at the departure end (variation 8E). At 120 knots that is 1 h 52 min at the quickest height in today's winds (8,500 ft, a 26-knot tailwind), arriving about 8:23 pm MDT (02:23 UTC), after sunset at the destination. 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: 1,443 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 7:55 pm MDT (01:55 UTC). Over the route from 146 to 253 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 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the whole route.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the first 194 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 DEN.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- urgent E545 at 6,000 ft, 18 nm southwest, 3:49 pm MDT (21:49 UTC): remarks: low-level wind shear + 5 knots fap runway 17L. At the departure end, 18 nm southwest of the line.
as filed, and in English
APA UUA /OV APA350002/TM 2149/FL060/TP E545/RM LLWS +/- 5 KT FAP RWY 17L
- Report
- an urgent report filed through APA
- Where
- 2 nm north (350°) of APA
- Time
- 21:49 UTC
- Height
- at 6,000 ft
- Aircraft
- E545
- Remarks
- low-level wind shear + 5 knots fap runway 17L
- GLF5 at 45,000 ft, 38 nm south, 4:44 pm MDT (22:44 UTC): moderate turbulence, remarks: ZDVWC-46. At the departure end, 38 nm south of the line.
as filed, and in English
COS UA /OV COS350025/TM 2244/FL450/TP GLF5/TB MOD /RM ZDVWC-46
- Report
- a routine report filed through COS
- Where
- 25 nm north (350°) of COS
- Time
- 22:44 UTC
- Height
- at 45,000 ft
- Aircraft
- GLF5
- Turbulence
- moderate
- Remarks
- ZDVWC-46
- A21N at 32,000 ft, 42 nm east, 5:42 pm MDT (23:42 UTC): moderate chop turbulence, remarks: ZDVWC-61. 19 nm along the route, 42 nm east of the line.
as filed, and in English
AKO UA /OV AKO270030/TM 2342/FL320/TP A21N/TB INTMT MOD CHOP/RM ZDVWC-61
- Report
- a routine report filed through AKO
- Where
- 30 nm west (270°) of AKO
- Time
- 23:42 UTC
- Height
- at 32,000 ft
- Aircraft
- A21N
- Turbulence
- intermittent moderate chop
- Remarks
- ZDVWC-61
- BCS3 at 24,000 ft, 18 nm west, 5:28 pm MDT (23:28 UTC): moderate turbulence from 22,000 ft to 24,000 ft, remarks: during the descent. 39 nm along the route, 18 nm west of the line.
as filed, and in English
DEN UA /OV DEN320045/TM 2328/FL240/TP BCS3/TB MOD 240-220/RM DURD
- Report
- a routine report filed through DEN
- Where
- 45 nm northwest (320°) of DEN
- Time
- 23:28 UTC
- Height
- at 24,000 ft
- Aircraft
- BCS3
- Turbulence
- moderate from 24,000 ft to 22,000 ft
- Remarks
- during the descent
- A319 at 22,000 ft, 36 nm west, 3:42 pm MDT (21:42 UTC): moderate chop turbulence, remarks: ZDVWC-13. 49 nm along the route, 36 nm west of the line.
as filed, and in English
BJC UA /OV BJC322047/TM 2142/FL220/TP A319/TB MOD CHOP/RM ZDVWC-13
- Report
- a routine report filed through BJC
- Where
- 47 nm northwest (322°) of BJC
- Time
- 21:42 UTC
- Height
- at 22,000 ft
- Aircraft
- A319
- Turbulence
- moderate chop
- Remarks
- ZDVWC-13
- BE9L at 21,000 ft, 14 nm west, 5:22 pm MDT (23:22 UTC): light chop turbulence above 21,000 ft, moderate icing above 21,000 ft, -21 °C, remarks: zdvwc. 156 nm along the route, 14 nm west of the line.
as filed, and in English
DGW UA /OV IIP200020/TM 2322/FL210/TP BE9L/SK BASE 200/TA M21/TB OCNL LGT CHOP 210/IC MOD MIX 210/RM ZDVWC
- Report
- a routine report filed through DGW
- Where
- 20 nm south (200°) of IIP
- Time
- 23:22 UTC
- Height
- at 21,000 ft
- Aircraft
- BE9L
- Sky
- base 20,000 ft
- Temperature
- −21 °C
- Turbulence
- occasional light chop at 21,000 ft
- Icing
- moderate mix at 21,000 ft
- Remarks
- zdvwc
- A321 descending, 3 nm south, 6:26 pm MDT (00:26 UTC): no turbulence up to 10,000 ft. At the departure end, 3 nm south of the line.
as filed, and in English
DEN UA /OV DEN/TM 0026/FLDURD/TP A321/TB NEG BLO 100
- Report
- a routine report filed through DEN
- Where
- over DEN
- Time
- 00:26 UTC
- Height
- during the descent
- Aircraft
- A321
- Turbulence
- no below 10,000 ft
- B737 at 14,000 ft, 28 nm south, 6:20 pm MDT (00:20 UTC): light to moderate turbulence, remarks: light to moderate from 14,000 ft to 16,000 ft occn light above 16,000 ft. At the departure end, 28 nm south of the line.
as filed, and in English
DEN UA /OV DEN170025/TM 0020/FL140/TP B737/TB LGT-MOD/RM LGT-MOD 140-160 OCCN LGT ABOVE 160
- Report
- a routine report filed through DEN
- Where
- 25 nm south (170°) of DEN
- Time
- 00:20 UTC
- Height
- at 14,000 ft
- Aircraft
- B737
- Turbulence
- light to moderate
- Remarks
- light to moderate from 14,000 ft to 16,000 ft occn light above 16,000 ft
- A320 at 8,000 ft, 31 nm east, 5:42 pm MDT (23:42 UTC): light chop turbulence from 8,000 ft to 16,000 ft, remarks: during the climb. At the departure end, 31 nm east of the line.
as filed, and in English
DEN UA /OV DEN080030/TM 2342/FL080/TP A320/TB LGT CHOP 080-160/RM DURC
- Report
- a routine report filed through DEN
- Where
- 30 nm east (080°) of DEN
- Time
- 23:42 UTC
- Height
- at 8,000 ft
- Aircraft
- A320
- Turbulence
- light chop from 8,000 ft to 16,000 ft
- Remarks
- during the climb
- B737 at 6,500 ft, 3 nm south, 5:27 pm MDT (23:27 UTC): no turbulence. At the departure end, 3 nm south of the line.
as filed, and in English
DEN UA /OV DEN/TM 2327/FL065/TP B737/TB NEG TB ON FINAL RWY17R
- Report
- a routine report filed through DEN
- Where
- over DEN
- Time
- 23:27 UTC
- Height
- at 6,500 ft
- Aircraft
- B737
- Turbulence
- no turbulence on final runway 17R
- B737 descending, 3 nm south, 4:29 pm MDT (22:29 UTC): no turbulence up to 10,000 ft. At the departure end, 3 nm south of the line.
as filed, and in English
DEN UA /OV DEN/TM 2229/FLDURD/TP B737/TB NEG BLO 100
- Report
- a routine report filed through DEN
- Where
- over DEN
- Time
- 22:29 UTC
- Height
- during the descent
- Aircraft
- B737
- Turbulence
- no below 10,000 ft
- B737 at 15,000 ft, 21 nm east, 3:37 pm MDT (21:37 UTC): light turbulence, remarks: during the climb zdvwc. At the departure end, 21 nm east of the line.
as filed, and in English
DEN UA /OV DEN080020/TM 2137/FL150/TP B737/TB CONS LGT OCNL CHOP 150-180/RM DURC ZDVWC
- Report
- a routine report filed through DEN
- Where
- 20 nm east (080°) of DEN
- Time
- 21:37 UTC
- Height
- at 15,000 ft
- Aircraft
- B737
- Turbulence
- continuous light occasional chop from 15,000 ft to 18,000 ft
- Remarks
- during the climb zdvwc
- E75L at 10,000 ft, 4 nm northeast, 5:45 pm MDT (23:45 UTC): light turbulence up to 17,000 ft, remarks: during the climb. 19 nm along the route, 4 nm northeast of the line.
as filed, and in English
DEN UA /OV DEN350025/TM 2345/FL100/TP E75L/TB LGT SFC-170/RM DURC
- Report
- a routine report filed through DEN
- Where
- 25 nm north (350°) of DEN
- Time
- 23:45 UTC
- Height
- at 10,000 ft
- Aircraft
- E75L
- Turbulence
- light from the surface to 17,000 ft
- Remarks
- during the climb
- B738 at 35,000 ft, 42 nm east, 5:30 pm MDT (23:30 UTC): light turbulence, remarks: ZDVWC-07. 19 nm along the route, 42 nm east of the line.
as filed, and in English
AKO UA /OV AKO270030/TM 2330/FL350/TP B738/TB CONS LGT /RM ZDVWC-07
- Report
- a routine report filed through AKO
- Where
- 30 nm west (270°) of AKO
- Time
- 23:30 UTC
- Height
- at 35,000 ft
- Aircraft
- B738
- Turbulence
- continuous light
- Remarks
- ZDVWC-07
4 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 3 forecast points nearest it (DEN, BFF, RAP). 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 | 120° at 20 kt | −12 kt | 12 °C | 132 kt | 2 h 04 min | 8:35 pm MDT (02:35 UTC) |
| 6,500 ft | 130° at 19 kt | −15 kt | 12 °C | 135 kt | 2 h 01 min | 8:32 pm MDT (02:32 UTC) |
| 8,500 ft | 180° at 26 kt | −26 kt | 14 °C | 146 kt | 1 h 52 min | 8:23 pm MDT (02:23 UTC) |
| 10,500 ft | 200° at 27 kt | −24 kt | 10 °C | 144 kt | 1 h 53 min | 8:24 pm MDT (02:24 UTC) |
| 12,500 ft | 210° at 28 kt | −21 kt | 5 °C | 141 kt | 1 h 56 min | 8:27 pm MDT (02:27 UTC) |
| 14,500 ft | 220° at 30 kt | −19 kt | 0 °C | 139 kt | 1 h 57 min | 8:28 pm MDT (02:28 UTC) |
| 16,500 ft | 230° at 32 kt | −17 kt | -5 °C | 137 kt | 1 h 59 min | 8:30 pm MDT (02:30 UTC) |
| 18,000 ft FL180 | 230° at 33 kt | −15 kt | -8 °C | 135 kt | 2 h 01 min | 8:32 pm MDT (02:32 UTC) |
| 24,000 ft FL240 | 240° at 43 kt | −19 kt | -21 °C | 139 kt | 1 h 57 min | 8:28 pm MDT (02:28 UTC) |
| 30,000 ft FL300 | 240° at 53 kt | −23 kt | -35 °C | 143 kt | 1 h 54 min | 8:25 pm MDT (02:25 UTC) |
| 34,000 ft FL340 | 250° at 58 kt | −14 kt | -40 °C | 134 kt | 2 h 02 min | 8:33 pm MDT (02:33 UTC) |
| 39,000 ft FL390 | 250° at 55 kt | −10 kt | -46 °C | 130 kt | 2 h 06 min | 8:37 pm MDT (02:37 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| DEN | used from 0 nm out; 24 nm from the line | 190/31 16° | 210/32 7° | 240/41 -8° | 230/47 -21° | 240/56 -32° | 250/65 -37° | 250/61 -47° | ||
| BFF | used from 97 nm out; 65 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 194 nm out; 106 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° |
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 |
|---|---|---|---|---|---|---|---|
| DEN Denver, CO | departure | no report just now | 5,433 ft | ||||
| FNL Fort Collins/Loveland, CO | 39 nm out, 11 nm west of the line, tower | no report just now | 5,020 ft | ||||
| CYS Cheyenne, WY | 78 nm out, 4 nm east of the line, tower | no report just now | 6,159 ft | ||||
| EAN Wheatland, WY | 136 nm out, 8 nm southeast of the line | no report just now | 4,779 ft | ||||
| GUR Guernsey, WY | 146 nm out, 17 nm east of the line, tower | no report just now | 4,401 ft | ||||
| GCC Gillette, WY | destination | no report just now | 4,365 ft |
The highest airport on this list sits at 6,159 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At GCC when you get there the forecast at the estimated arrival, 8:23 pm MDT (02:23 UTC)
GCC 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 DEN 6:24 pm MDT (00:24 UTC), at GCC 6:23 pm MDT (00:23 UTC) (civil twilight ends 6:52 pm MDT (00:52 UTC)). At 120 knots the arrival at GCC is after sunset there (6:25 pm MDT (00:25 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: Denver International, Northeast Wyoming Regional.