Northern Colorado Regional to Flagstaff Pulliam Airport FNL → FLG
449 nautical miles (516 statute miles) southwest on a straight line, true course 227°, about 218° magnetic at the departure end (variation 9E). At 120 knots that is 4 h 22 min at the quickest height in today's winds (8,500 ft, a 17-knot headwind), arriving about 12:15 pm MST (19:15 UTC). Right now FNL is VFR, wind from the southeast (140°) at 8 knots; FLG is marginal VFR, wind from the south-southwest (210°) at 16 knots, gusting to 32. 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
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Over the whole route.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Over the first 219 nm of the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 329 nm of the route.
- AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the last 219 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 10 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 FNL.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- urgent C172 at 6,700 ft, 44 nm southeast, 6:54 am MDT (12:54 UTC): remarks: low-level wind shear + 10 knots during the climb. 30 nm along the route, 44 nm southeast 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, 44 nm southeast, 6:40 am MDT (12:40 UTC): remarks: low-level wind shear a 40-knot loss of airspeed knots during the climb runway 35R. 30 nm along the route, 44 nm southeast 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 TBM7 at 100 ft, 45 nm southeast, 6:30 am MDT (12:30 UTC): light chop turbulence, remarks: low-level wind shear a 10-knot loss of airspeed. 30 nm along the route, 45 nm southeast of the line.
as filed, and in English
APA UUA /OV APA140001/TM 1230/FL001/TP TBM7/TB LGT CHOP/RM LLWS +-10KTS
- Report
- an urgent report filed through APA
- Where
- 1 nm southeast (140°) of APA
- Time
- 12:30 UTC
- Height
- at 100 ft
- Aircraft
- TBM7
- Turbulence
- light chop
- Remarks
- low-level wind shear a 10-knot loss of airspeed
- B737 at 21,000 ft, 15 nm southeast, 8:05 am MDT (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. At the departure end, 15 nm southeast 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, 1 nm west, 7:01 am MDT (13:01 UTC): moderate turbulence from 11,000 ft to 20,000 ft. At the departure end, 1 nm west 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
- B737 at 16,000 ft, 3 nm northeast, 6:23 am MDT (12:23 UTC): moderate turbulence, remarks: during the descent. At the departure end, 3 nm northeast of the line.
as filed, and in English
DEN UA /OV DEN320040/TM 1223/FL160/TP B737/TB MOD/RM DURD
- Report
- a routine report filed through DEN
- Where
- 40 nm northwest (320°) of DEN
- Time
- 12:23 UTC
- Height
- at 16,000 ft
- Aircraft
- B737
- Turbulence
- moderate
- Remarks
- during the descent
- C172 at 200 ft, 43 nm southeast, 6:35 am MDT (12:35 UTC): moderate turbulence, remarks: low-level wind shear a 15-knot loss of airspeed. 30 nm along the route, 43 nm southeast of the line.
as filed, and in English
APA UA /OV APA350001/TM 1235/FL002/TP C172/TB MOD TURB/RM LLWS +-15KTS
- Report
- a routine report filed through APA
- Where
- 1 nm north (350°) of APA
- Time
- 12:35 UTC
- Height
- at 200 ft
- Aircraft
- C172
- Turbulence
- moderate turbulence
- Remarks
- low-level wind shear a 15-knot loss of airspeed
- B738 descending, 35 nm southeast, 6:55 am MDT (12:55 UTC): moderate turbulence from 16,000 ft to 20,000 ft. 50 nm along the route, 35 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
- B737 at 18,000 ft, 24 nm southeast, 7:50 am MDT (13:50 UTC): light to moderate turbulence, remarks: from the surface to 18,000 ft. At the departure end, 24 nm southeast 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
- E75L climbing, 39 nm southeast, 8:37 am MDT (14:37 UTC): light chop turbulence, remarks: zimmr sid. At the departure end, 39 nm southeast of the line.
as filed, and in English
DEN UA /OV W DEN/TM 1437/FLDURC/TP E75L/TB CONT LGT CHOP / MOD 120/RM ZIMMR SID
- Report
- a routine report filed through DEN
- Where
- west den
- Time
- 14:37 UTC
- Height
- during the climb
- Aircraft
- E75L
- Turbulence
- continuous light chop moderate at 12,000 ft
- Remarks
- zimmr sid
- B737 at 6,500 ft, 39 nm southeast, 8:32 am MDT (14:32 UTC): no turbulence. At the departure end, 39 nm southeast of the line.
as filed, and in English
DEN UA /OV DEN/TM 1432/FL065/TP B737/TB NEG TB ON FINAL RWY17R
- Report
- a routine report filed through DEN
- Where
- over DEN
- Time
- 14:32 UTC
- Height
- at 6,500 ft
- Aircraft
- B737
- Turbulence
- no turbulence on final runway 17R
- CRJ2 at 7,000 ft, 39 nm southeast, 7:30 am MDT (13:30 UTC): no turbulence. At the departure end, 39 nm southeast of the line.
as filed, and in English
DEN UA /OV 5N/TM 1330/FL070/TP CRJ2/TB NEG
- Report
- a routine report filed through DEN
- Where
- 5N
- Time
- 13:30 UTC
- Height
- at 7,000 ft
- Aircraft
- CRJ2
- Turbulence
- none
- B738 at 5,500 ft, 37 nm southeast, 6:28 am MDT (12:28 UTC): no turbulence. At the departure end, 37 nm southeast of the line.
as filed, and in English
DEN UA /OV KDEN/TM 1228/FLSFC/TP B738/TB NEG
- Report
- a routine report filed through DEN
- Where
- over KDEN
- Time
- 12:28 UTC
- Height
- at the surface
- Aircraft
- B738
- Turbulence
- none
- C172 at 7,800 ft, 49 nm southeast, 7:57 am MDT (13:57 UTC): light to moderate chop turbulence. 30 nm along the route, 49 nm southeast of the line.
as filed, and in English
APA UA /OV APA150006/TM 1357/FL078/TP C172/TB LGT-MOD CHOP
- Report
- a routine report filed through APA
- Where
- 6 nm southeast (150°) of APA
- Time
- 13:57 UTC
- Height
- at 7,800 ft
- Aircraft
- C172
- Turbulence
- light to moderate chop
2 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 4 forecast points nearest it (DEN, GJT, FMN, PRC). 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 | 190° at 21 kt | +17 kt | 8 °C | 103 kt | 4 h 22 min | 12:15 pm MST (19:15 UTC) |
| 10,500 ft | 200° at 25 kt | +23 kt | 4 °C | 97 kt | 4 h 38 min | 12:31 pm MST (19:31 UTC) |
| 12,500 ft | 210° at 31 kt | +30 kt | 0 °C | 90 kt | 4 h 59 min | 12:52 pm MST (19:52 UTC) |
| 14,500 ft | 220° at 39 kt | +39 kt | -4 °C | 81 kt | 5 h 33 min | 1:26 pm MST (20:26 UTC) |
| 16,500 ft | 220° at 48 kt | +48 kt | -8 °C | 72 kt | 6 h 14 min | 2:07 pm MST (21:07 UTC) |
| 18,000 ft FL180 | 220° at 54 kt | +54 kt | -11 °C | 66 kt | 6 h 48 min | 2:41 pm MST (21:41 UTC) |
| 24,000 ft FL240 | 220° at 68 kt | +68 kt | -21 °C | 52 kt | 8 h 38 min | 4:31 pm MST (23:31 UTC) |
| 30,000 ft FL300 | 230° at 78 kt | +78 kt | -30 °C | 42 kt | 10 h 41 min | 6:34 pm MST (01:34 UTC) |
| 34,000 ft FL340 | 230° at 92 kt | +91 kt | -37 °C | 29 kt | 15 h 29 min | 11:22 pm MST (06:22 UTC) |
| 39,000 ft FL390 | 230° at 99 kt | +99 kt | -47 °C | 21 kt | 21 h 23 min | 5:16 am MST (12:16 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| DEN | used from 0 nm out; 38 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 100 nm out; 73 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° | ||
| FMN | used from 199 nm out; 67 nm from the line | 170/14 8° | 210/28 0° | 230/57 -10° | 220/74 -21° | 230/82 -30° | 230/95 -37° | 230/102 -47° | ||
| PRC | used from 349 nm out; 121 nm from the line | 200/38 5° | 200/44 -1° | 210/72 -11° | 220/78 -20° | 220/85 -29° | 230/99 -36° | 230/105 -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 |
|---|---|---|---|---|---|---|---|
| FNL Fort Collins/Loveland, CO | departure | VFR | from the southeast (140°) at 8 knots | 8 mi | none | 5,020 ft | 7:56 am MDT (13:56 UTC) |
| BJC Denver, CO | 30 nm out, 21 nm southeast of the line, tower | VFR | from the south-southeast (160°) at 5 knots | 10+ mi | none | 5,673 ft | 14:50 UTC |
| GNB Granby, CO | 50 nm out, 14 nm northwest of the line | VFR | from the southeast (140°) at 3 knots | 10+ mi | none | 8,207 ft | 14:35 UTC |
| ASE Aspen, CO | 110 nm out, 7 nm west of the line, tower | VFR Sky: a few clouds at 3,600 feet, scattered clouds at 7,000 feet | from the south (180°) at 12 knots, gusting to 18 | 10+ mi | none | 7,837 ft | 13:53 UTC |
| MTJ Montrose, CO | 179 nm out, 10 nm northwest of the line | VFR Sky: overcast at 8,000 feet | from the west (270°) at 7 knots | 10+ mi | 8,000 ft | 5,758 ft | 13:53 UTC |
| TEX Telluride, CO | 199 nm out, 14 nm southeast of the line | VFR Sky: scattered clouds at 4,800 feet, overcast at 5,500 feet | from the southeast (140°) at 8 knots, gusting to 21 | 10+ mi | 5,500 ft | 9,069 ft | 14:35 UTC |
| CEZ Cortez, CO | 249 nm out, 17 nm southeast of the line | VFR | from the south-southeast (150°) at 6 knots | 10+ mi | none | 5,917 ft | 13:53 UTC |
| FLG Flagstaff, AZ | destination | marginal VFR Sky: a broken layer at 1,200 feet, a broken layer at 2,300 feet, overcast at 4,000 feet Weather: light rain | from the south-southwest (210°) at 16 knots, gusting to 32 | 10+ mi | 1,200 ft | 7,014 ft | 6:57 am MST (13:57 UTC) |
The highest airport on this list sits at 9,069 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At FLG when you get there the forecast at the estimated arrival, 12:15 pm MST (19:15 UTC)
Wind from the southwest at 20 knots, gusting to 32, visibility 6 miles, light rain showers, overcast at 1,500 feet marginal VFR
30% chance between Mon 11:00 am MST (18:00 UTC) and 4:00 pm MST (23:00 UTC): visibility 5 miles, light thunderstorms with rain, overcast at 1,000 feet (thunderheads) marginal VFR
The whole forecast for FLG
- From Mon 5:00 am MST (12:00 UTC): wind from the south-southwest at 15 knots, gusting to 25, visibility more than 6 miles, light rain showers, scattered clouds at 800 feet, overcast at 1,200 feet
- At times between Mon 5:00 am MST (12:00 UTC) and 8:00 am MST (15:00 UTC): visibility 4 miles, light rain, overcast at 800 feet
- From Mon 11:00 am MST (18:00 UTC): wind from the southwest at 20 knots, gusting to 32, visibility 6 miles, light rain showers, overcast at 1,500 feet
- 30% chance between Mon 11:00 am MST (18:00 UTC) and 4:00 pm MST (23:00 UTC): visibility 5 miles, light thunderstorms with rain, overcast at 1,000 feet (thunderheads)
- From Mon 7:00 pm MST (02:00 UTC): wind from the southwest at 12 knots, gusting to 25, visibility more than 6 miles, light rain showers, overcast at 2,500 feet
- From Mon 10:00 pm MST (05:00 UTC): wind from the southwest at 12 knots, gusting to 25, visibility more than 6 miles, light rain showers, overcast 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 FNL 6:23 pm MDT (00:23 UTC), at FLG 5:54 pm MST (00:54 UTC) (civil twilight ends 6:19 pm MST (01:19 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: Northern Colorado Regional, Flagstaff Pulliam Airport.