St. George Regional to Joslin Fld/Magic Valley Regional SGU → TWF
330 nautical miles (380 statute miles) north on a straight line, true course 352°, about 340° magnetic at the departure end (variation 12E). At 120 knots that is 1 h 59 min at the quickest height in today's winds (30,000 ft, a 47-knot tailwind), arriving about 3:05 am MDT (09:05 UTC), after sunset at the destination. Right now SGU is VFR, wind from the south (170°) at 4 knots; TWF is VFR, wind from the south-southwest (200°) at 9 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: 26 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 ZULU 2C: moderate icing up to 23,000 ft. Over the whole route.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the first 214 nm of the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the whole route.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the last 19 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 SGU.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
No pilot reports within 50 nautical miles of the line in the last three hours.
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 4 forecast points nearest it (BCE, ELY, SLC, PIH). 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 | 200° at 27 kt | −23 kt | 3 °C | 143 kt | 2 h 18 min | 3:24 am MDT (09:24 UTC) |
| 10,500 ft | 210° at 26 kt | −20 kt | 0 °C | 140 kt | 2 h 21 min | 3:27 am MDT (09:27 UTC) |
| 12,500 ft | 220° at 26 kt | −19 kt | -3 °C | 139 kt | 2 h 22 min | 3:28 am MDT (09:28 UTC) |
| 14,500 ft | 210° at 32 kt | −24 kt | -7 °C | 144 kt | 2 h 18 min | 3:24 am MDT (09:24 UTC) |
| 16,500 ft | 210° at 38 kt | −29 kt | -11 °C | 149 kt | 2 h 13 min | 3:19 am MDT (09:19 UTC) |
| 18,000 ft FL180 | 210° at 42 kt | −34 kt | -14 °C | 154 kt | 2 h 09 min | 3:15 am MDT (09:15 UTC) |
| 24,000 ft FL240 | 210° at 55 kt | −42 kt | -23 °C | 162 kt | 2 h 02 min | 3:08 am MDT (09:08 UTC) |
| 30,000 ft FL300 | 210° at 63 kt | −47 kt | -29 °C | 167 kt | 1 h 59 min | 3:05 am MDT (09:05 UTC) |
| 34,000 ft FL340 | 220° at 65 kt | −47 kt | -34 °C | 167 kt | 1 h 59 min | 3:05 am MDT (09:05 UTC) |
| 39,000 ft FL390 | 220° at 59 kt | −40 kt | -43 °C | 160 kt | 2 h 04 min | 3:10 am MDT (09:10 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| BCE | used from 0 nm out; 70 nm from the line | 220/27 -1° | 210/40 -13° | 220/54 -21° | 220/64 -30° | 220/64 -34° | 220/52 -44° | |||
| ELY | used from 97 nm out; 49 nm from the line | 200/39 3° | 210/27 -2° | 210/45 -15° | 220/56 -24° | 210/60 -28° | 210/63 -34° | 220/61 -43° | ||
| SLC | used from 243 nm out; 112 nm from the line | 200/5 | 230/8 2° | 220/20 -2° | 210/40 -12° | 190/53 -25° | 210/62 -30° | 220/69 -34° | 220/64 -43° | |
| PIH | used from 291 nm out; 93 nm from the line | L/V | 240/13 1° | 240/15 -3° | 210/42 -15° | 200/70 -25° | 220/74 -29° | 220/71 -36° | 220/62 -43° |
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 |
|---|---|---|---|---|---|---|---|
| SGU St George, UT | departure | VFR Sky: a few clouds at 9,500 feet | from the south (170°) at 4 knots | 10+ mi | none | 2,883 ft | 12:56 am MDT (06:56 UTC) |
| CDC Cedar City, UT | 39 nm out, 25 nm east of the line | VFR Sky: a few clouds at 5,000 feet, scattered clouds at 7,000 feet, overcast at 8,500 feet | from the south-southwest (200°) at 13 knots | 10+ mi | 8,500 ft | 5,622 ft | 06:53 UTC |
| ENV Wendover, UT | 223 nm out, 6 nm east of the line | marginal VFR Sky: overcast at 2,500 feet | from the east (080°) at 3 knots | 10+ mi | 2,500 ft | 4,236 ft | 06:56 UTC |
| TWF Twin Falls, ID | destination | VFR Sky: overcast at 3,600 feet Weather: light rain | from the south-southwest (200°) at 9 knots | 7 mi | 3,600 ft | 4,153 ft | 12:53 am MDT (06:53 UTC) |
The highest airport on this list sits at 5,622 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At TWF when you get there the forecast at the estimated arrival, 3:05 am MDT (09:05 UTC)
Wind from the southwest at 7 knots, visibility 5 miles, light rain, mist, scattered clouds at 1,500 feet, overcast at 2,500 feet marginal VFR
The whole forecast for TWF
- From Mon 12:00 am MDT (06:00 UTC): wind from the southwest at 8 knots, visibility more than 6 miles, light rain, a broken layer at 4,000 feet
- From Mon 1:00 am MDT (07:00 UTC): wind from the southwest at 7 knots, visibility 5 miles, light rain, mist, scattered clouds at 1,500 feet, overcast at 2,500 feet
- From Mon 10:00 am MDT (16:00 UTC): wind from the west at 7 knots, visibility 6 miles, light rain showers, mist, scattered clouds at 1,500 feet, a broken layer at 3,500 feet
- From Mon 12:00 pm MDT (18:00 UTC): wind from the west-northwest at 6 knots, visibility more than 6 miles, showers nearby, scattered clouds at 4,000 feet, overcast at 8,000 feet
- From Mon 8:00 pm MDT (02:00 UTC): wind from the west-southwest at 8 knots, visibility more than 6 miles, showers nearby, overcast at 4,000 feet
The forecast for SGU, the departure
- From Mon 12:00 am MDT (06:00 UTC): wind from the south-southeast at 8 knots, visibility more than 6 miles, scattered clouds at 4,000 feet, a broken layer at 8,000 feet
- 30% chance between Mon 1:00 am MDT (07:00 UTC) and 4:00 am MDT (10:00 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
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 SGU 7:00 pm MDT (01:00 UTC), at TWF 6:59 pm MDT (00:59 UTC) (civil twilight ends 7:27 pm MDT (01:27 UTC)). At 120 knots the arrival at TWF is before sunrise there (7:47 am MDT (13:47 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: St. George Regional, Joslin Fld/Magic Valley Regional.