The U.S. aircraft register, updated daily
Plan a flight · Mon 6:07 am MDT (12:07 UTC)

Rapid City Regional to General Mitchell International RAP → MKE

663 nautical miles (763 statute miles) east on a straight line, true course 090°, about 082° magnetic at the departure end (variation 8E). At 120 knots that is 3 h 43 min at the quickest height in today's winds (39,000 ft, a 58-knot tailwind), arriving about 10:50 am CDT (15:50 UTC). Right now RAP is low IFR, wind from the east (100°) at 4 knots; MKE is VFR, wind from the southwest (220°) at 8 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: 3 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

  • AIRMET SIERRA 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the first 287 nm of the route.
  • AIRMET TANGO 2W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Near the route, 475 nm along 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 RAP.

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

  • B38M at 32,000 ft, 47 nm south, 5:45 am MDT (11:45 UTC): light chop turbulence. 326 nm along the route, 47 nm south of the line.
    as filed, and in English
    FOD UA /OV FOD285060/TM 1145/FL320/TP B38M/TB CONS LGT CHOP OCNL MOD CHOP
    Report
    a routine report filed through FOD
    Where
    60 nm west (285°) of FOD
    Time
    11:45 UTC
    Height
    at 32,000 ft
    Aircraft
    B38M
    Turbulence
    continuous light chop occasional moderate chop
  • B739 at 34,000 ft, 7 nm north, 4:58 am MDT (10:58 UTC): no turbulence. At the destination end, 7 nm north of the line.
    as filed, and in English
    UES UA /OV BAE/TM 1058/FL340/TP B739/TB NEG
    Report
    a routine report filed through UES
    Where
    over BAE
    Time
    10:58 UTC
    Height
    at 34,000 ft
    Aircraft
    B739
    Turbulence
    none

Winds aloft along the route, and the time en route the forecast for use 08:00–15:00 UTC · at 120 knots true airspeed

The eastbound cruising heights for this course (VFR: odd thousands plus 500 ft; above 18,000 ft the forecast levels), with the wind averaged along the line from the 7 forecast points nearest it (RAP, PIR, FSD, MCW, LSE, DBQ, MKG). A plus sign is a headwind, a minus sign a tailwind.

HeightAverage windHead- or tailwindTemperatureGround speedTime en routeArrival
3,500 ft240° at 25 kt−20 kt140 kt4 h 44 min11:51 am CDT (16:51 UTC)
5,500 ft240° at 21 kt−18 kt15 °C138 kt4 h 48 min11:55 am CDT (16:55 UTC)
7,500 ft240° at 23 kt−18 kt15 °C138 kt4 h 48 min11:55 am CDT (16:55 UTC)
9,500 ft230° at 25 kt−19 kt11 °C139 kt4 h 46 min11:53 am CDT (16:53 UTC)
11,500 ft240° at 26 kt−22 kt6 °C142 kt4 h 40 min11:47 am CDT (16:47 UTC)
13,500 ft240° at 26 kt−22 kt2 °C142 kt4 h 40 min11:47 am CDT (16:47 UTC)
15,500 ft240° at 24 kt−21 kt-3 °C141 kt4 h 42 min11:49 am CDT (16:49 UTC)
17,500 ft240° at 23 kt−20 kt-8 °C140 kt4 h 44 min11:51 am CDT (16:51 UTC)
18,000 ft FL180240° at 23 kt−19 kt-9 °C139 kt4 h 46 min11:53 am CDT (16:53 UTC)
24,000 ft FL240240° at 31 kt−27 kt-21 °C147 kt4 h 31 min11:38 am CDT (16:38 UTC)
30,000 ft FL300260° at 37 kt−35 kt-35 °C155 kt4 h 17 min11:24 am CDT (16:24 UTC)
34,000 ft FL340260° at 45 kt−45 kt-39 °C165 kt4 h 01 min11:08 am CDT (16:08 UTC)
39,000 ft FL390270° at 57 kt−58 kt-47 °C178 kt3 h 43 min10:50 am CDT (15:50 UTC)

Based on data from the 12th at 06:00 UTC; valid on the 12th at 12:00 UTC for use 08:00 to 15:00 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
RAPused from 0 nm out; 25 nm from the line250/28 16°260/31 10°240/25 4°210/35 -10°200/45 -23°230/47 -31°230/47 -36°230/51 -46°
PIRused from 49 nm out; 50 nm from the line230/15 15°220/22 14°220/24 6°200/32 -10°210/48 -22°240/45 -33°240/43 -37°250/55 -46°
FSDused from 198 nm out; 54 nm from the line210/20230/23 21°220/25 14°230/30 5°230/26 -9°240/30 -21°270/33 -36°260/47 -37°270/58 -47°
MCWused from 346 nm out; 60 nm from the line250/36250/24 19°240/26 11°250/30 5°270/22 -9°260/30 -21°260/31 -36°280/53 -38°280/66 -48°
LSEused from 445 nm out; 49 nm from the line250/25240/21 17°240/28 11°250/28 5°280/24 -10°280/31 -21°260/35 -37°270/45 -43°280/59 -47°
DBQused from 544 nm out; 58 nm from the line250/27260/23 17°240/26 10°260/30 4°280/26 -9°280/36 -21°270/41 -36°280/52 -41°290/67 -48°
MKGused from 643 nm out; 83 nm from the line260/28260/18 15°250/16 9°260/22 4°280/31 -9°270/35 -21°270/44 -35°270/42 -45°290/61 -51°

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
RAP Rapid City, SD departure low IFR Sky: sky obscured at 200 feet Weather: light rain, fog from the east (100°) at 4 knots 0.5 mi 200 ft 3,203 ft 6:03 am MDT (12:03 UTC)
PHP Philip, SD 59 nm out, 4 nm east of the line IFR Sky: overcast at 500 feet from the northeast (050°) at 5 knots 10+ mi 500 ft 2,209 ft 11:55 UTC
PIR Pierre, SD 119 nm out, 23 nm north of the line low IFR Sky: overcast at 400 feet Weather: mist from the northeast (050°) at 8 knots 3 mi 400 ft 1,744 ft 11:53 UTC
MHE Mitchell, SD 218 nm out, 8 nm south of the line low IFR Sky: overcast at 300 feet Weather: mist from the north (010°) at 7 knots 5 mi 300 ft 1,304 ft 11:53 UTC
FSD Sioux Falls, SD 277 nm out, 15 nm south of the line, tower VFR Sky: a few clouds at 10,000 feet, scattered clouds at 25,000 feet from the northeast (040°) at 5 knots 10+ mi none 1,430 ft 11:56 UTC
FRM Fairmont, MN 376 nm out, 2 nm southwest of the line VFR calm 10+ mi none 1,161 ft 11:56 UTC
RST Rochester, MN 455 nm out, 24 nm north of the line, tower VFR from the south (180°) at 10 knots 8 mi none 1,317 ft 11:54 UTC
CJJ Cresco, IA 475 nm out, 6 nm south of the line no report just now 1,279 ft
LNR Lone Rock, WI 564 nm out, 3 nm southwest of the line VFR from the east-northeast (060°) at 4 knots 10+ mi none 717 ft 11:56 UTC
UES Waukesha, WI 643 nm out, 5 nm northeast of the line, tower VFR from the south-southwest (210°) at 5 knots 10+ mi none 911 ft 11:45 UTC
MKE Milwaukee, WI destination VFR Sky: a few clouds at 18,000 feet, a broken layer at 23,000 feet from the southwest (220°) at 8 knots 10+ mi 23,000 ft 728 ft 6:52 am CDT (11:52 UTC)

The highest airport on this list sits at 3,203 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At MKE when you get there the forecast at the estimated arrival, 10:50 am CDT (15:50 UTC)

Wind from the southwest at 12 knots, gusting to 20, visibility more than 6 miles, a few clouds at 25,000 feet VFR

The whole forecast for MKE
  • From Mon 7:00 am CDT (12:00 UTC): wind from the southwest at 12 knots, visibility more than 6 miles, a broken layer at 25,000 feet
  • From Mon 10:00 am CDT (15:00 UTC): wind from the southwest at 12 knots, gusting to 20, visibility more than 6 miles, a few clouds at 25,000 feet
  • From Mon 9:00 pm CDT (02:00 UTC): wind from the southwest at 7 knots, visibility more than 6 miles, low-level wind shear, scattered clouds at 10,000 feet
  • From Tue 3:00 am CDT (08:00 UTC): wind from the west at 10 knots, visibility more than 6 miles, a few clouds at 25,000 feet
The forecast for RAP, the departure
  • From Mon 6:00 am MDT (12:00 UTC): wind from the east-southeast at 8 knots, visibility 1 mile, mist, overcast at 300 feet
  • At times between Mon 6:00 am MDT (12:00 UTC) and 9:00 am MDT (15:00 UTC): visibility ¼ mile, fog, sky obscured at 200 feet
  • From Mon 10:00 am MDT (16:00 UTC): wind from the north-northwest at 10 knots, visibility 5 miles, mist, scattered clouds at 500 feet, a broken layer at 1,000 feet
  • From Mon 12:00 pm MDT (18:00 UTC): wind from the north-northwest at 22 knots, gusting to 30, visibility more than 6 miles, scattered clouds at 3,000 feet
  • From Mon 8:00 pm MDT (02:00 UTC): wind from the north at 10 knots, visibility more than 6 miles, scattered clouds at 1,500 feet, a broken layer at 2,000 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 RAP 6:12 pm MDT (00:12 UTC), at MKE 6:14 pm CDT (23:14 UTC) (civil twilight ends 6:42 pm CDT (23:42 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 northern Rockies
Radar now, the northern Rockies · loop National Weather Service
Radar now, the upper Mississippi valley
Radar now, the upper Mississippi valley · 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: Rapid City Regional, General Mitchell International.