Salt Lake City International to Mammoth Yosemite Airport SLC → MMH
371 nautical miles (427 statute miles) southwest on a straight line, true course 241°, about 230° magnetic at the departure end (variation 11E). At 120 knots that is 3 h 10 min at the quickest height in today's winds (4,500 ft, a 3-knot headwind), arriving about 9:42 pm PDT (04:42 UTC), after sunset at the destination. Right now SLC is VFR, wind from the east-northeast (070°) at 3 knots; MMH is VFR, wind from the southeast (140°) at 19 knots, gusting to 30. 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
- SIGMET 5W: thunderstorms (a convective SIGMET) up to 33,000 ft, moving from the southwest at 20 knots, until 8:55 pm MDT (02:55 UTC). Over the route from 176 to 322 nm out.
as issued
WSUS33 KKCI 120055 MKCW WST 120055 CONVECTIVE SIGMET 5W VALID UNTIL 0255Z NV FROM 10NNE BAM-40WSW BVL-60SW ELY-10SE OAL-30WNW OAL-10NNE BAM AREA TS MOV FROM 23020KT. TOPS TO FL330.
- 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 6:00 pm MDT (00:00 UTC). Over the first 10 nm of the route.
- AIRMET ZULU 3C: moderate icing up to 22,000 ft, from 6:00 pm MDT (00:00 UTC). Over the first 274 nm of the route.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft, from 6:00 pm MDT (00:00 UTC). Over the first 225 nm of the route.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft, from 6:00 pm MDT (00:00 UTC). Over the first 59 nm of the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist), from 6:00 pm MDT (00:00 UTC). Over the first 225 nm of the route.
- AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 15,000 ft, from 6:00 pm MDT (00:00 UTC). Over the last 147 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 SLC.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- urgent BCS3 at 5,400 ft, 35 nm southeast, 5:35 pm MDT (23:35 UTC): remarks: wind shear 10 knots gain 1000 above ground on final. At the departure end, 35 nm southeast of the line.
as filed, and in English
PVU UUA /OV PVU310001/TM 2335/FL054/TP BCS3/RM WIND SHEAR 10 KT GAIN 1000 AGL ON FINAL
- Report
- an urgent report filed through PVU
- Where
- 1 nm northwest (310°) of PVU
- Time
- 23:35 UTC
- Height
- at 5,400 ft
- Aircraft
- BCS3
- Remarks
- wind shear 10 knots gain 1000 above ground on final
- A339 at 16,000 ft, 30 nm north, 5:35 pm MDT (23:35 UTC): moderate chop turbulence up to 16,000 ft, remarks: during the climb zlc. At the departure end, 30 nm north of the line.
as filed, and in English
OGD UA /OV OGD063012/TM 2335/FL160/TP A339/TB MOD CHOP 160 BLO/RM DURC /ZLC
- Report
- a routine report filed through OGD
- Where
- 12 nm northeast (063°) of OGD
- Time
- 23:35 UTC
- Height
- at 16,000 ft
- Aircraft
- A339
- Turbulence
- moderate chop at 16,000 ft below
- Remarks
- during the climb zlc
- E75L at 14,500 ft, 25 nm north, 5:05 pm MDT (23:05 UTC): moderate turbulence up to 15,800 ft, heavy rain, remarks: during the climb zlc. At the departure end, 25 nm north of the line.
as filed, and in English
OGD UA /OV OGD086008/TM 2305/FL145/TP E75L/WX +RA/TB MOD 158 BLO/RM DURC /ZLC
- Report
- a routine report filed through OGD
- Where
- 8 nm east (086°) of OGD
- Time
- 23:05 UTC
- Height
- at 14,500 ft
- Aircraft
- E75L
- Weather
- heavy rain
- Turbulence
- moderate at 15,800 ft below
- Remarks
- during the climb zlc
- PA44 at 6,000 ft, 34 nm southeast, 5:25 pm MDT (23:25 UTC): moderate turbulence, remarks: runway in sight at at 6,400 ft. At the departure end, 34 nm southeast of the line.
as filed, and in English
PVU UA /OV PVU310002/TM 2325/FL060/TP PA44/TB MOD /RM RWY IN SIGHT AT 064
- Report
- a routine report filed through PVU
- Where
- 2 nm northwest (310°) of PVU
- Time
- 23:25 UTC
- Height
- at 6,000 ft
- Aircraft
- PA44
- Turbulence
- moderate
- Remarks
- runway in sight at at 6,400 ft
- B739 at 11,000 ft, 7 nm northwest, 4:40 pm MDT (22:40 UTC): moderate turbulence, no icing, -4 °C, wind 180° at 40 knots, remarks: during the descent. At the departure end, 7 nm northwest of the line.
as filed, and in English
SLC UA /OV TCH240014/TM 2240/FL110/TP B739/TA M04/WV 180040/TB CONT MOD /IC NEG/RM DURD
- Report
- a routine report filed through SLC
- Where
- 14 nm southwest (240°) of TCH
- Time
- 22:40 UTC
- Height
- at 11,000 ft
- Aircraft
- B739
- Temperature
- −4 °C
- Wind
- from 180° at 40 knots
- Turbulence
- continuous moderate
- Icing
- none
- Remarks
- during the descent
- E75L at 18,000 ft, 14 nm southeast, 5:24 pm MDT (23:24 UTC): moderate turbulence from 18,000 ft to 22,000 ft, remarks: mountain wave a 10-knot loss of airspeed entered by zoa fdcs. At the destination end, 14 nm southeast of the line.
as filed, and in English
LOL UA /OV BIH300011/TM 2324/FL 180/TP E75L/TB MOD 180-220/RM MTN WAVE /-10 ENTERED BY ZOA FDCS AWC-WEB
- Report
- a routine report filed through LOL
- Where
- 11 nm northwest (300°) of BIH
- Time
- 23:24 UTC
- Height
- at 18,000 ft
- Aircraft
- E75L
- Turbulence
- moderate from 18,000 ft to 22,000 ft
- Remarks
- mountain wave a 10-knot loss of airspeed entered by zoa fdcs
- BCS1 at 12,500 ft, 19 nm north, 5:09 pm MDT (23:09 UTC): light to moderate turbulence, remarks: during the climb from 8,000 ft to 12,500 ft. At the departure end, 19 nm north of the line.
as filed, and in English
SLC UA /OV TCH350015/TM 2309/FL125/TP BCS1/TB LGT TO MOD TURB/RM DURC 080-125
- Report
- a routine report filed through SLC
- Where
- 15 nm north (350°) of TCH
- Time
- 23:09 UTC
- Height
- at 12,500 ft
- Aircraft
- BCS1
- Turbulence
- light to moderate turbulence
- Remarks
- during the climb from 8,000 ft to 12,500 ft
- B38M at 16,000 ft, 6 nm northwest, 6:06 pm MDT (00:06 UTC): no turbulence, no icing, 13 °C, remarks: during the climb. At the departure end, 6 nm northwest of the line.
as filed, and in English
SLC UA /OV TCH230015/TM 0006/FL160/TP B38M/TA 13/TB NEG/IC NEG/RM DURC
- Report
- a routine report filed through SLC
- Where
- 15 nm southwest (230°) of TCH
- Time
- 00:06 UTC
- Height
- at 16,000 ft
- Aircraft
- B38M
- Temperature
- 13 °C
- Turbulence
- none
- Icing
- none
- Remarks
- during the climb
- A321 at 10,000 ft, 14 nm southeast, 6:00 pm MDT (00:00 UTC): light chop turbulence, no icing, remarks: during the descent. At the departure end, 14 nm southeast of the line.
as filed, and in English
SLC UA /OV TCH165020/TM 0000/FL100/TP A321/TB LGT CHOP/IC NEG/RM DURD
- Report
- a routine report filed through SLC
- Where
- 20 nm south (165°) of TCH
- Time
- 00:00 UTC
- Height
- at 10,000 ft
- Aircraft
- A321
- Turbulence
- light chop
- Icing
- none
- Remarks
- during the descent
- B737 at 16,000 ft, 5 nm north, 6:45 pm MDT (00:45 UTC): no turbulence, light rime icing from 13,000 ft to 17,000 ft, 8 °C, remarks: during the climb. 20 nm along the route, 5 nm north of the line.
as filed, and in English
SLC UA /OV TCH230020/TM 0045/FL160/TP B737/TA 8/TB NEG/IC LT RIME 130-170/RM DURC
- Report
- a routine report filed through SLC
- Where
- 20 nm southwest (230°) of TCH
- Time
- 00:45 UTC
- Height
- at 16,000 ft
- Aircraft
- B737
- Temperature
- 8 °C
- Turbulence
- none
- Icing
- lt rime from 13,000 ft to 17,000 ft
- Remarks
- during the climb
- PRM1 at 21,000 ft, 46 nm southeast, 7:03 pm MDT (01:03 UTC): light rime icing, -15 °C. 29 nm along the route, 46 nm southeast of the line.
as filed, and in English
PVU UA /OV FFU180025/TM 0103/FL210/TP PRM1/TA M15/IC LGT RIME /ZLC
- Report
- a routine report filed through PVU
- Where
- 25 nm south (180°) of FFU
- Time
- 01:03 UTC
- Height
- at 21,000 ft
- Aircraft
- PRM1
- Temperature
- −15 °C
- Icing
- light rime zlc
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 (SLC, ELY, BIH). 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 | 280° at 3 kt | +3 kt | 117 kt | 3 h 10 min | 9:42 pm PDT (04:42 UTC) | |
| 6,500 ft | 240° at 6 kt | +6 kt | 114 kt | 3 h 15 min | 9:47 pm PDT (04:47 UTC) | |
| 8,500 ft | 210° at 21 kt | +18 kt | 4 °C | 102 kt | 3 h 38 min | 10:10 pm PDT (05:10 UTC) |
| 10,500 ft | 210° at 25 kt | +23 kt | 2 °C | 97 kt | 3 h 49 min | 10:21 pm PDT (05:21 UTC) |
| 12,500 ft | 220° at 29 kt | +27 kt | -2 °C | 93 kt | 3 h 59 min | 10:31 pm PDT (05:31 UTC) |
| 14,500 ft | 220° at 31 kt | +29 kt | -6 °C | 91 kt | 4 h 05 min | 10:37 pm PDT (05:37 UTC) |
| 16,500 ft | 220° at 34 kt | +31 kt | -10 °C | 89 kt | 4 h 10 min | 10:42 pm PDT (05:42 UTC) |
| 18,000 ft FL180 | 220° at 36 kt | +33 kt | -13 °C | 87 kt | 4 h 16 min | 10:48 pm PDT (05:48 UTC) |
| 24,000 ft FL240 | 200° at 48 kt | +39 kt | -24 °C | 81 kt | 4 h 35 min | 11:07 pm PDT (06:07 UTC) |
| 30,000 ft FL300 | 220° at 66 kt | +63 kt | -27 °C | 57 kt | 6 h 31 min | 1:03 am PDT (08:03 UTC) |
| 34,000 ft FL340 | 220° at 67 kt | +64 kt | -36 °C | 56 kt | 6 h 38 min | 1:10 am PDT (08:10 UTC) |
| 39,000 ft FL390 | 230° at 63 kt | +61 kt | -44 °C | 59 kt | 6 h 17 min | 12:49 am PDT (07:49 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| SLC | used from 0 nm out; 24 nm from the line | 280/8 | 210/39 5° | 210/52 -1° | 200/50 -11° | 200/56 -23° | 220/61 -28° | 230/73 -37° | 230/73 -45° | |
| ELY | used from 98 nm out; 39 nm from the line | 210/20 4° | 240/21 -1° | 230/37 -13° | 200/58 -25° | 220/73 -27° | 220/73 -36° | 220/69 -44° | ||
| BIH | used from 244 nm out; 95 nm from the line | L/V | 210/14 6° | 210/20 -2° | 230/26 -14° | 220/32 -24° | 220/63 -27° | 220/56 -35° | 230/50 -44° |
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 |
|---|---|---|---|---|---|---|---|
| SLC Salt Lake City, UT | departure | VFR Sky: a few clouds at 800 feet, scattered clouds at 1,700 feet, overcast at 5,000 feet Weather: rain, mist | from the east-northeast (070°) at 3 knots | 6 mi | 5,000 ft | 4,230 ft | 7:11 pm MDT (01:11 UTC) |
| TVY Tooele, UT | 20 nm out, 1 nm south of the line | VFR Sky: a few clouds at 5,000 feet, a broken layer at 7,500 feet, overcast at 9,000 feet | from the northwest (310°) at 3 knots | 10+ mi | 7,500 ft | 4,321 ft | 01:15 UTC |
| ELY Ely, NV | 156 nm out, 13 nm south of the line | VFR | from the south (170°) at 12 knots, gusting to 22 | 10+ mi | none | 6,259 ft | 00:53 UTC |
| TPH Tonopah, NV | 283 nm out, 23 nm south of the line | VFR | from the south (170°) at 21 knots, gusting to 33 | 10+ mi | none | 5,430 ft | 00:56 UTC |
| MMH Mammoth Lakes, CA | destination | VFR Sky: scattered clouds at 9,000 feet | from the southeast (140°) at 19 knots, gusting to 30 | 10+ mi | none | 7,134 ft | 4:35 pm PDT (23:35 UTC) |
The highest airport on this list sits at 7,134 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At MMH when you get there the forecast at the estimated arrival, 9:42 pm PDT (04:42 UTC)
Wind light and variable, visibility more than 6 miles, a few clouds at 6,000 feet VFR
The whole forecast for MMH
- From Sun 5:00 pm PDT (00:00 UTC): wind from the west-northwest at 14 knots, gusting to 24, visibility more than 6 miles, scattered clouds at 6,000 feet
- From Sun 8:00 pm PDT (03:00 UTC): wind light and variable, visibility more than 6 miles, a few clouds at 6,000 feet
- From Mon 3:00 am PDT (10:00 UTC): wind light and variable, visibility more than 6 miles, scattered clouds at 3,000 feet
- From Mon 1:00 pm PDT (20:00 UTC): wind from the east-southeast at 7 knots, visibility 6 miles, light rain showers, a broken layer at 4,000 feet
The forecast for SLC, the departure
- From Sun 7:00 pm MDT (01:00 UTC): wind from the northwest at 10 knots, visibility 6 miles, light rain, mist, scattered clouds at 2,000 feet, a broken layer at 5,000 feet
- At times between Sun 7:00 pm MDT (01:00 UTC) and 9:00 pm MDT (03:00 UTC): visibility 4 miles, rain, a broken layer at 2,000 feet
- From Sun 10:00 pm MDT (04:00 UTC): wind from the south at 8 knots, visibility more than 6 miles, light rain, scattered clouds at 2,000 feet, a broken layer at 5,000 feet
- From Mon 2:00 am MDT (08:00 UTC): wind from the south at 9 knots, visibility more than 6 miles, scattered clouds at 4,000 feet, a broken layer at 8,000 feet
- 30% chance between Mon 2:00 am MDT (08:00 UTC) and 6:00 am MDT (12:00 UTC): wind variable at 10 knots, gusting to 25, light rain showers, a broken layer at 4,000 feet
- From Mon 6:00 am MDT (12:00 UTC): wind from the south at 11 knots, visibility more than 6 miles, light rain showers, scattered clouds at 2,000 feet, a broken layer at 5,000 feet
- From Mon 3:00 pm MDT (21:00 UTC): wind from the northwest at 11 knots, visibility more than 6 miles, light rain showers, scattered clouds at 2,000 feet, a broken layer at 5,000 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 SLC 6:52 pm MDT (00:52 UTC), at MMH 6:22 pm PDT (01:22 UTC) (civil twilight ends 6:48 pm PDT (01:48 UTC)). At 120 knots the arrival at MMH is after sunset there (6:23 pm PDT (01:23 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: Salt Lake City International, Mammoth Yosemite Airport.