The U.S. aircraft register, updated daily
Plan a flight · Sun 9:34 pm CDT (02:34 UTC)

Frederick W Smith Intl/Memphis Airport to Casper/Natrona County International MEM → CPR

900 nautical miles (1,036 statute miles) northwest on a straight line, true course 307°, about 308° magnetic at the departure end (variation 1W). At 120 knots that is 7 h 42 min at the quickest height in today's winds (4,500 ft, a 3-knot headwind), arriving about 4:16 am MDT (10:16 UTC), after sunset at the destination. Right now MEM is VFR, wind from the south (180°) at 4 knots; CPR is VFR, wind from the northwest (310°) at 7 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: 494 flights in the DOT's last twelve reported months, the route's page.

The return flight

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 8W: thunderstorms (a convective SIGMET) up to 35,000 ft, moving from the southwest at 40 knots, until 10:55 pm CDT (03:55 UTC). Over the last 99 nm of the route.
    as issued
    WSUS33 KKCI 120155
    MKCW WST 120155
    CONVECTIVE SIGMET 8W
    VALID UNTIL 0355Z
    CO MT WY
    FROM 40N SHR-60WNW RAP-20ENE CYS-30SW CYS-10NW BOY-40N SHR
    AREA TS MOV FROM 22040KT. TOPS TO FL350.
  • AIRMET TANGO 3W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Over the route from 317 to 594 nm out.
  • AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the last 178 nm of the route.
  • AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the last 129 nm of the 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). Over the last 49 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 MEM.

Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first

  • urgent CRJ2 at 7,000 ft, 2 nm northeast, 8:04 pm CDT (01:04 UTC): moderate turbulence, remarks: low-level wind shear dept runway 03 gain/loss unknown. At the destination end, 2 nm northeast of the line.
    as filed, and in English
    CPR UUA /OV CPR035002/TM 0104/FL070/TP CRJ2/TB CONT MOD TURB/RM LLWS DEPT RY03 GAIN/LOSS UNKN
    Report
    an urgent report filed through CPR
    Where
    2 nm northeast (035°) of CPR
    Time
    01:04 UTC
    Height
    at 7,000 ft
    Aircraft
    CRJ2
    Turbulence
    continuous moderate turbulence
    Remarks
    low-level wind shear dept runway 03 gain/loss unknown
  • UAL1340 at 40,000 ft, 6 nm north, 7:18 pm CDT (00:18 UTC): moderate chop turbulence, wind 244° at 70 knots. 613 nm along the route, 6 nm north of the line.
    as filed, and in English
    ARP UAL1340 4046N 10049W 0018 F400 244/070KT TB OCNL MOD CHOP IC
    Report
    a routine report filed through ARP
  • B789 at 40,000 ft, 2 nm west, 7:22 pm CDT (00:22 UTC): light to moderate clear-air turbulence, remarks: zdvwc. 633 nm along the route, 2 nm west of the line.
    as filed, and in English
    SNY UA /OV SNY088081/TM 0022/FL400/TP B789/TB OCNL LGT-MOD CAT/RM ZDVWC
    Report
    a routine report filed through SNY
    Where
    81 nm east (088°) of SNY
    Time
    00:22 UTC
    Height
    at 40,000 ft
    Aircraft
    B789
    Turbulence
    occasional light to moderate clear-air turbulence
    Remarks
    zdvwc
  • B789 at 40,000 ft, 4 nm southwest, 7:22 pm CDT (00:22 UTC): light to moderate clear-air turbulence, remarks: zdvwc. 643 nm along the route, 4 nm southwest of the line.
    as filed, and in English
    SNY UA /OV SNY088072/TM 0022/FL400/TP B789/TB OCNL LGT-MOD CAT /RM ZDVWC
    Report
    a routine report filed through SNY
    Where
    72 nm east (088°) of SNY
    Time
    00:22 UTC
    Height
    at 40,000 ft
    Aircraft
    B789
    Turbulence
    occasional light to moderate clear-air turbulence
    Remarks
    zdvwc
  • CRJ2 at 9,000 ft, 15 nm southwest, 7:35 pm CDT (00:35 UTC): light chop turbulence, vmc, remarks: occasional moderate turbulence at at 15,000 ft. At the destination end, 15 nm southwest of the line.
    as filed, and in English
    CPR UA /OV CPR215015/TM 0035/FL090/TP CRJ2/WX VMC/TB LGT CHOP/RM OCNL MOD TURB AT 150
    Report
    a routine report filed through CPR
    Where
    15 nm southwest (215°) of CPR
    Time
    00:35 UTC
    Height
    at 9,000 ft
    Aircraft
    CRJ2
    Weather
    visual conditions
    Turbulence
    light chop
    Remarks
    occasional moderate turbulence at at 15,000 ft

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 8 forecast points nearest it (MEM, SGF, MKC, SLN, GRI, GLD, BFF, LND). A plus sign is a headwind, a minus sign a tailwind.

HeightAverage windHead- or tailwindTemperatureGround speedTime en routeArrival
4,500 ft220° at 31 kt+3 kt21 °C117 kt7 h 42 min4:16 am MDT (10:16 UTC)
6,500 ft220° at 27 kt+5 kt17 °C115 kt7 h 50 min4:24 am MDT (10:24 UTC)
8,500 ft230° at 25 kt+9 kt13 °C111 kt8 h 06 min4:40 am MDT (10:40 UTC)
10,500 ft230° at 22 kt+8 kt10 °C112 kt8 h 02 min4:36 am MDT (10:36 UTC)
12,500 ft230° at 20 kt+6 kt6 °C114 kt7 h 54 min4:28 am MDT (10:28 UTC)
14,500 ft230° at 21 kt+8 kt1 °C112 kt8 h 02 min4:36 am MDT (10:36 UTC)
16,500 ft240° at 22 kt+11 kt-4 °C109 kt8 h 15 min4:49 am MDT (10:49 UTC)
18,000 ft FL180240° at 23 kt+12 kt-7 °C108 kt8 h 20 min4:54 am MDT (10:54 UTC)
24,000 ft FL240240° at 31 kt+14 kt-19 °C106 kt8 h 29 min5:03 am MDT (11:03 UTC)
30,000 ft FL300250° at 42 kt+28 kt-32 °C92 kt9 h 47 min6:21 am MDT (12:21 UTC)
34,000 ft FL340260° at 49 kt+38 kt-38 °C82 kt10 h 59 min7:33 am MDT (13:33 UTC)
39,000 ft FL390270° at 49 kt+41 kt-49 °C79 kt11 h 24 min7:58 am MDT (13:58 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
PointFrom3,0006,0009,00012,00018,00024,00030,00034,00039,000
MEMused from 0 nm out; 25 nm from the line230/19260/16 15°270/17 12°300/13 6°300/15 -5°300/26 -18°300/34 -32°300/41 -40°310/46 -52°
SGFused from 99 nm out; 89 nm from the line230/33230/28 15°250/20 13°240/18 7°250/20 -6°250/24 -17°280/42 -31°280/49 -40°290/46 -51°
MKCused from 297 nm out; 73 nm from the line220/44250/28 18°250/18 13°240/12 6°280/24 -6°240/34 -18°260/47 -30°260/51 -40°270/58 -50°
SLNused from 346 nm out; 64 nm from the line210/53230/41 20°240/26 14°230/16 8°240/25 -7°240/35 -19°250/61 -30°260/65 -38°260/56 -49°
GRIused from 495 nm out; 74 nm from the line230/35 21°230/23 13°220/20 7°240/25 -8°240/37 -20°250/49 -33°260/57 -38°260/58 -47°
GLDused from 594 nm out; 88 nm from the line230/49230/42 15°220/26 8°240/18 -7°230/27 -21°240/62 -30°240/61 -35°250/57 -47°
BFFused from 643 nm out; 91 nm from the line180/28220/33 15°210/31 7°230/32 -9°220/41 -21°220/40 -33°240/47 -36°250/54 -46°
LNDused from 891 nm out; 104 nm from the line200/23 6°220/31 1°220/39 -11°230/39 -23°220/51 -28°220/66 -37°230/68 -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

AirportWhereConditionsWindVisibilityCeilingElevationReported
MEM Memphis, TN departure VFR from the south (180°) at 4 knots 10+ mi none 340 ft 8:54 pm CDT (01:54 UTC)
BVX Batesville, AR 89 nm out, 15 nm southwest of the line VFR from the southeast (130°) at 3 knots 10+ mi none 465 ft 01:56 UTC
BBG Branson, MO 178 nm out, 19 nm southwest of the line, tower VFR from the south-southeast (160°) at 4 knots 10+ mi none 1,302 ft 02:15 UTC
SGF Springfield, MO 208 nm out, 12 nm north of the line, tower VFR from the south (180°) at 7 knots 10+ mi none 1,268 ft 01:52 UTC
FSK Fort Scott, KS 287 nm out, 3 nm east of the line VFR from the south (180°) at 10 knots 7 mi none 918 ft 02:15 UTC
MHK Manhattan, KS 406 nm out, 21 nm northeast of the line, tower VFR from the south-southwest (200°) at 11 knots, gusting to 20 10+ mi none 1,066 ft 01:52 UTC
PHG Phillipsburg, KS 524 nm out, 14 nm southwest of the line VFR from the south (180°) at 13 knots, gusting to 24 10+ mi none 1,910 ft 02:15 UTC
CSB Cambridge, NE 574 nm out, 5 nm west of the line VFR from the south-southeast (160°) at 9 knots, gusting to 15 10+ mi none 2,414 ft 02:15 UTC
OGA Ogallala, NE 663 nm out, 3 nm north of the line VFR from the east (080°) at 8 knots 10+ mi none 3,279 ft 02:15 UTC
BFF Scottsbluff, NE 762 nm out, 4 nm east of the line VFR from the east (090°) at 12 knots 10+ mi none 3,967 ft 01:53 UTC
GUR Guernsey, WY 811 nm out, 3 nm northwest of the line, tower VFR Sky: a few clouds at 4,700 feet, a broken layer at 10,000 feet, a broken layer at 12,000 feet Weather: light rain from the east-northeast (070°) at 14 knots 9 mi 10,000 ft 4,401 ft 02:23 UTC
CPR Casper, WY destination VFR Sky: a few clouds at 11,000 feet from the northwest (310°) at 7 knots 10+ mi none 5,344 ft 7:53 pm MDT (01:53 UTC)

The highest airport on this list sits at 5,344 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At CPR when you get there the forecast at the estimated arrival, 4:16 am MDT (10:16 UTC)

Wind from the south-southwest at 12 knots, gusting to 22, visibility more than 6 miles, a broken layer at 10,000 feet VFR

The whole forecast for CPR
  • From Sun 6:00 pm MDT (00:00 UTC): wind from the east-northeast at 12 knots, gusting to 18, visibility more than 6 miles, scattered clouds at 4,000 feet, overcast at 8,000 feet
  • At times between Sun 6:00 pm MDT (00:00 UTC) and 10:00 pm MDT (04:00 UTC): visibility 5 miles, light rain, a broken layer at 3,000 feet
  • From Sun 10:00 pm MDT (04:00 UTC): wind from the south-southwest at 12 knots, gusting to 22, visibility more than 6 miles, a broken layer at 10,000 feet
  • 30% chance between Sun 10:00 pm MDT (04:00 UTC) and 4:00 am MDT (10:00 UTC): visibility 5 miles, light rain, a broken layer at 3,000 feet
  • From Mon 12:00 pm MDT (18:00 UTC): wind from the west at 10 knots, visibility more than 6 miles, scattered clouds at 5,000 feet, a broken layer at 15,000 feet
The forecast for MEM, the departure
  • From Sun 7:00 pm CDT (00:00 UTC): wind from the south-southwest at 4 knots, visibility more than 6 miles, a few clouds at 25,000 feet
  • From Mon 11:00 am CDT (16:00 UTC): wind from the west-southwest at 9 knots, gusting to 17, visibility more than 6 miles, clear skies
  • From Mon 7:00 pm CDT (00:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, a few clouds at 10,000 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 MEM 6:29 pm CDT (23:29 UTC), at CPR 6:28 pm MDT (00:28 UTC) (civil twilight ends 6:56 pm MDT (00:56 UTC)). At 120 knots the arrival at CPR is before sunrise there (7:15 am MDT (13:15 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

Radar now, the lower Mississippi valley
Radar now, the lower Mississippi valley · loop National Weather Service
Radar now, the upper Mississippi valley
Radar now, the upper Mississippi valley · loop National Weather Service
Radar now, the southern Plains
Radar now, the southern Plains · loop National Weather Service
Radar, the whole country
Radar, the whole country · loop National Weather Service
Surface analysis now
Surface analysis now Weather Prediction Center
Forecast chart, 12 hours ahead
Forecast chart, 12 hours ahead Weather Prediction Center
Forecast chart, 24 hours ahead
Forecast chart, 24 hours ahead Weather Prediction Center

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: Frederick W Smith Intl/Memphis Airport, Casper/Natrona County International.