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 46-knot tailwind), arriving about 8:36 pm MDT (02:36 UTC), after sunset at the destination. Right now SGU is VFR, wind from the north (360°) at 4 knots; TWF is VFR, wind from the south (180°) at 5 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
- SIGMET W71W: thunderstorms (a convective SIGMET) up to 27,000 ft, moving from the south at 40 knots, until 7:55 pm MDT (01:55 UTC). Near the route, 311 nm along the route.
as issued
WSUS33 KKCI 112355 MKCW WST 112355 CONVECTIVE SIGMET 71W VALID UNTIL 0155Z WY UT ID FROM 40S DBS-40WNW BPI-30WSW MTU-30SSW DTA-30SE TWF-40S DBS AREA EMBD TS MOV FROM 20040KT. TOPS TO FL270.
- AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the whole route.
- 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 136 nm of the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the whole 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
Not fetched just now.
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 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 | 220° at 21 kt | −15 kt | 4 °C | 135 kt | 2 h 27 min | 9:04 pm MDT (03:04 UTC) |
| 10,500 ft | 220° at 30 kt | −22 kt | 1 °C | 142 kt | 2 h 19 min | 8:56 pm MDT (02:56 UTC) |
| 12,500 ft | 220° at 33 kt | −23 kt | -2 °C | 143 kt | 2 h 18 min | 8:55 pm MDT (02:55 UTC) |
| 14,500 ft | 210° at 37 kt | −27 kt | -6 °C | 147 kt | 2 h 15 min | 8:52 pm MDT (02:52 UTC) |
| 16,500 ft | 210° at 41 kt | −31 kt | -9 °C | 151 kt | 2 h 11 min | 8:48 pm MDT (02:48 UTC) |
| 18,000 ft FL180 | 210° at 44 kt | −34 kt | -12 °C | 154 kt | 2 h 09 min | 8:46 pm MDT (02:46 UTC) |
| 24,000 ft FL240 | 200° at 48 kt | −41 kt | -24 °C | 161 kt | 2 h 03 min | 8:40 pm MDT (02:40 UTC) |
| 30,000 ft FL300 | 220° at 65 kt | −46 kt | -28 °C | 166 kt | 1 h 59 min | 8:36 pm MDT (02:36 UTC) |
| 34,000 ft FL340 | 220° at 69 kt | −45 kt | -36 °C | 165 kt | 2 h | 8:37 pm MDT (02:37 UTC) |
| 39,000 ft FL390 | 230° at 67 kt | −40 kt | -44 °C | 160 kt | 2 h 04 min | 8:41 pm MDT (02:41 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| BCE | used from 0 nm out; 70 nm from the line | 210/47 0° | 200/50 -12° | 220/31 -23° | 220/56 -26° | 220/58 -35° | 230/58 -45° | |||
| ELY | used from 97 nm out; 49 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° | ||
| SLC | used from 243 nm out; 112 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° | |
| PIH | used from 291 nm out; 93 nm from the line | 270/10 | 270/13 1° | 210/16 -2° | 200/56 -11° | 200/51 -23° | 200/68 -33° | 220/77 -37° | 230/73 -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 |
|---|---|---|---|---|---|---|---|
| SGU St George, UT | departure | VFR Sky: a few clouds at 3,400 feet, a broken layer at 6,000 feet, overcast at 10,000 feet Weather: light rain | from the north (360°) at 4 knots | 10+ mi | 6,000 ft | 2,883 ft | 5:56 pm MDT (23:56 UTC) |
| CDC Cedar City, UT | 39 nm out, 25 nm east of the line | VFR Sky: a broken layer at 9,000 feet, overcast at 11,000 feet | from the south-southwest (200°) at 19 knots, gusting to 30 | 10+ mi | 9,000 ft | 5,622 ft | 23:53 UTC |
| ENV Wendover, UT | 223 nm out, 6 nm east of the line | VFR | from the east-southeast (120°) at 3 knots | 10+ mi | none | 4,236 ft | 23:56 UTC |
| TWF Twin Falls, ID | destination | VFR Sky: overcast at 4,000 feet | from the south (180°) at 5 knots | 10+ mi | 4,000 ft | 4,153 ft | 5:53 pm MDT (23:53 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, 8:36 pm MDT (02:36 UTC)
Wind from the southwest at 9 knots, visibility more than 6 miles, a broken layer at 4,000 feet VFR
The whole forecast for TWF
- From Sun 6:00 pm MDT (00:00 UTC): wind from the west-southwest at 6 knots, visibility more than 6 miles, showers nearby, overcast at 4,000 feet
- From Sun 8:00 pm MDT (02:00 UTC): wind from the southwest at 9 knots, visibility more than 6 miles, a broken layer at 4,000 feet
- From Mon 2:00 am MDT (08:00 UTC): wind from the southwest at 7 knots, visibility 5 miles, light rain, mist, scattered clouds at 1,000 feet, overcast at 3,000 feet
- From Mon 12:00 pm MDT (18:00 UTC): wind from the west-northwest at 8 knots, visibility 6 miles, light rain showers, mist, scattered clouds at 1,500 feet, a broken layer at 3,500 feet
- From Mon 2:00 pm MDT (20:00 UTC): wind from the northwest at 6 knots, visibility more than 6 miles, showers nearby, scattered clouds at 5,000 feet, overcast at 10,000 feet
The forecast for SGU, the departure
- From Sun 6:00 pm MDT (00:00 UTC): wind light and variable, visibility more than 6 miles, light rain showers, scattered clouds at 3,000 feet, a broken layer at 6,000 feet
- From Sun 9:00 pm MDT (03:00 UTC): wind from the south-southeast at 8 knots, visibility more than 6 miles, low-level wind shear, scattered clouds at 4,000 feet, a broken layer at 8,000 feet
- 30% chance between Sun 9:00 pm MDT (03:00 UTC) and 3:00 am MDT (09:00 UTC): wind variable at 10 knots, gusting to 25, 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
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 7:01 pm MDT (01:01 UTC), at TWF 7:00 pm MDT (01:00 UTC) (civil twilight ends 7:29 pm MDT (01:29 UTC)). At 120 knots the arrival at TWF is after sunset there (7:02 pm MDT (01:02 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.