Northern Colorado Regional to Laramie Regional FNL → LAR
60 nautical miles (69 statute miles) northwest on a straight line, true course 330°, about 321° magnetic at the departure end (variation 9E). At 120 knots that is 26 min at the quickest height in today's winds (18,000 ft, a 17-knot tailwind), arriving about 2:25 am MDT (08:25 UTC), after sunset at the destination. Right now FNL is VFR, wind from the south (180°) at 5 knots; LAR is VFR, wind from the south (190°) at 8 knots, gusting to 17. 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 4W: moderate turbulence above 18,000 ft from 18,000 ft to 38,000 ft, from 12:00 am MDT (06:00 UTC). Over the whole route.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft, from 12:00 am MDT (06:00 UTC). Over the whole 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), from 12:00 am MDT (06:00 UTC). Over the last 30 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
- B737 at 18,000 ft, 2 nm east, 1:24 am MDT (07:24 UTC): moderate turbulence, remarks: FL180-130. 10 nm along the route, 2 nm east of the line.
as filed, and in English
DEN UA /OV DEN330050/TM 0724/FL180/TP B737/TB MOD/RM FL180-130
- Report
- a routine report filed through DEN
- Where
- 50 nm northwest (330°) of DEN
- Time
- 07:24 UTC
- Height
- at 18,000 ft
- Aircraft
- B737
- Turbulence
- moderate
- Remarks
- FL180-130
- B737 descending, 42 nm southeast, 1:10 am MDT (07:10 UTC): remarks: smooth. At the departure end, 42 nm southeast of the line.
as filed, and in English
DEN UA /OV DEN/TM 0710/FLDURD/TP B737/RM SMOOTH
- Report
- a routine report filed through DEN
- Where
- over DEN
- Time
- 07:10 UTC
- Height
- during the descent
- Aircraft
- B737
- Remarks
- smooth
- B738 descending, 42 nm southeast, 12:15 am MDT (06:15 UTC): light chop turbulence. At the departure end, 42 nm southeast of the line.
as filed, and in English
DEN UA /OV DEN/TM 0615/FLDURD/TP B738/TB LGT CHOP
- Report
- a routine report filed through DEN
- Where
- over DEN
- Time
- 06:15 UTC
- Height
- during the descent
- Aircraft
- B738
- Turbulence
- light chop
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 1 forecast point nearest it (DEN). 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 | 240° at 21 kt | 0 | 14 °C | 120 kt | 30 min | 2:29 am MDT (08:29 UTC) |
| 10,500 ft | 250° at 32 kt | +4 kt | 10 °C | 116 kt | 31 min | 2:30 am MDT (08:30 UTC) |
| 12,500 ft | 250° at 44 kt | +6 kt | 5 °C | 114 kt | 32 min | 2:31 am MDT (08:31 UTC) |
| 14,500 ft | 240° at 45 kt | −2 kt | 0 °C | 122 kt | 30 min | 2:29 am MDT (08:29 UTC) |
| 16,500 ft | 230° at 47 kt | −11 kt | -4 °C | 131 kt | 27 min | 2:26 am MDT (08:26 UTC) |
| 18,000 ft FL180 | 220° at 49 kt | −17 kt | -8 °C | 137 kt | 26 min | 2:25 am MDT (08:25 UTC) |
| 24,000 ft FL240 | 220° at 49 kt | −17 kt | -21 °C | 137 kt | 26 min | 2:25 am MDT (08:25 UTC) |
| 30,000 ft FL300 | 230° at 54 kt | −9 kt | -30 °C | 129 kt | 28 min | 2:27 am MDT (08:27 UTC) |
| 34,000 ft FL340 | 240° at 57 kt | 0 | -35 °C | 120 kt | 30 min | 2:29 am MDT (08:29 UTC) |
| 39,000 ft FL390 | 240° at 49 kt | 0 | -45 °C | 120 kt | 30 min | 2:29 am MDT (08:29 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| DEN | used from 0 nm out; 64 nm from the line | 240/21 14° | 250/44 6° | 220/49 -8° | 220/49 -21° | 230/54 -30° | 240/57 -35° | 240/49 -45° |
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 south (180°) at 5 knots | 10+ mi | none | 5,020 ft | 1:56 am MDT (07:56 UTC) |
| LAR Laramie, WY | destination | VFR | from the south (190°) at 8 knots, gusting to 17 | 10+ mi | none | 7,283 ft | 1:53 am MDT (07:53 UTC) |
The highest airport on this list sits at 7,283 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At LAR when you get there the forecast at the estimated arrival, 2:25 am MDT (08:25 UTC)
Wind from the west-southwest at 15 knots, visibility more than 6 miles, low-level wind shear, a few clouds at 15,000 feet VFR
The whole forecast for LAR
- From Mon 12:00 am MDT (06:00 UTC): wind from the west-southwest at 15 knots, visibility more than 6 miles, low-level wind shear, a few clouds at 15,000 feet
- From Mon 3:00 am MDT (09:00 UTC): wind from the southwest at 15 knots, gusting to 25, visibility more than 6 miles, low-level wind shear, a few clouds at 20,000 feet
- From Mon 7:00 am MDT (13:00 UTC): wind from the west-southwest at 20 knots, gusting to 30, visibility more than 6 miles, clear skies
- From Mon 5:00 pm MDT (23:00 UTC): wind from the southwest at 12 knots, visibility more than 6 miles, a few clouds at 20,000 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 LAR 6:25 pm MDT (00:25 UTC) (civil twilight ends 6:52 pm MDT (00:52 UTC)). At 120 knots the arrival at LAR is before sunrise there (7:10 am MDT (13:10 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, Laramie Regional.