The U.S. aircraft register, updated daily
Plan a flight · Mon 10:37 am CDT (15:37 UTC)

Chicago Executive to Rocky Mountain Metro Airport PWK → BJC

790 nautical miles (909 statute miles) west on a straight line, true course 266°, about 268° magnetic at the departure end (variation 2W). At 120 knots that is 8 h 19 min at the quickest height in today's winds (4,500 ft, a 25-knot headwind), arriving about 5:56 pm MDT (23:56 UTC). Right now PWK is VFR, wind from the west-southwest (240°) at 7 knots; BJC is VFR, wind from the southeast (130°) 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: 1 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 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). Over the route from 230 to 510 nm out.
  • AIRMET SIERRA 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Near the route, 540 nm along the route.
  • AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Over the last 120 nm of the route.
  • AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Over the last 40 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 PWK.

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

  • urgent C172 at 6,700 ft, 23 nm south, 7:54 am CDT (12:54 UTC): remarks: low-level wind shear + 10 knots during the climb. At the destination end, 23 nm south of the line.
    as filed, and in English
    APA UUA /OV KAPA/TM 1254/FL067/TP C172/RM LLWS +/- 10 KTS DURC
    Report
    an urgent report filed through APA
    Where
    over KAPA
    Time
    12:54 UTC
    Height
    at 6,700 ft
    Aircraft
    C172
    Remarks
    low-level wind shear + 10 knots during the climb
  • urgent FA7X at 6,800 ft, 23 nm south, 7:40 am CDT (12:40 UTC): remarks: low-level wind shear a 40-knot loss of airspeed knots during the climb runway 35R. At the destination end, 23 nm south of the line.
    as filed, and in English
    APA UUA /OV KAPA/TM 1240/FL068/TP FA7X/RM LLWS -40 KTS DURC RY 35R
    Report
    an urgent report filed through APA
    Where
    over KAPA
    Time
    12:40 UTC
    Height
    at 6,800 ft
    Aircraft
    FA7X
    Remarks
    low-level wind shear a 40-knot loss of airspeed knots during the climb runway 35R
  • B738 descending, 3 nm west, 10:20 am CDT (15:20 UTC): moderate turbulence from 12,000 ft to 18,000 ft. 740 nm along the route, 3 nm west of the line.
    as filed, and in English
    DEN UA /OV 30NE DEN/TM 1520/FLDURD/TP B738/TB MOD 180-120
    Report
    a routine report filed through DEN
    Where
    30NE den
    Time
    15:20 UTC
    Height
    during the descent
    Aircraft
    B738
    Turbulence
    moderate from 18,000 ft to 12,000 ft
  • B38M at 12,000 ft, 21 nm south, 9:07 am CDT (14:07 UTC): moderate turbulence, remarks: from 11,000 ft to 12,000 ft. 750 nm along the route, 21 nm south of the line.
    as filed, and in English
    DEN UA /OV DEN090025/TM 1407/FL120/TP B38M/TB MOD/RM 110-120
    Report
    a routine report filed through DEN
    Where
    25 nm east (090°) of DEN
    Time
    14:07 UTC
    Height
    at 12,000 ft
    Aircraft
    B38M
    Turbulence
    moderate
    Remarks
    from 11,000 ft to 12,000 ft
  • C172 at 7,500 ft, 27 nm south, 10:27 am CDT (15:27 UTC): moderate turbulence. At the destination end, 27 nm south of the line.
    as filed, and in English
    APA UA /OV APA100008/TM 1527/FL075/TP C172/TB CONT MOD
    Report
    a routine report filed through APA
    Where
    8 nm east (100°) of APA
    Time
    15:27 UTC
    Height
    at 7,500 ft
    Aircraft
    C172
    Turbulence
    continuous moderate
  • B737 at 21,000 ft, 11 nm northwest, 9:05 am CDT (14:05 UTC): moderate turbulence, remarks: mountain wave a 30-knot gain of airspeed from 25,000 ft to 15,000 ft during the descent. At the destination end, 11 nm northwest of the line.
    as filed, and in English
    DEN UA /OV DEN310025/TM 1405/FL210/TP B737/TB MOD TURB/RM MTN WAVE +30KTS 250-150 DURD
    Report
    a routine report filed through DEN
    Where
    25 nm northwest (310°) of DEN
    Time
    14:05 UTC
    Height
    at 21,000 ft
    Aircraft
    B737
    Turbulence
    moderate turbulence
    Remarks
    mountain wave a 30-knot gain of airspeed from 25,000 ft to 15,000 ft during the descent
  • B738 descending, 26 nm north, 8:01 am CDT (13:01 UTC): moderate turbulence from 11,000 ft to 20,000 ft. At the destination end, 26 nm north of the line.
    as filed, and in English
    DEN UA /OV 40NW DEN/TM 1301/FLDURD/TP B738/TB MOD 200-110
    Report
    a routine report filed through DEN
    Where
    40NW den
    Time
    13:01 UTC
    Height
    during the descent
    Aircraft
    B738
    Turbulence
    moderate from 20,000 ft to 11,000 ft
  • B738 descending, 32 nm south, 7:55 am CDT (12:55 UTC): moderate turbulence from 16,000 ft to 20,000 ft. At the destination end, 32 nm south of the line.
    as filed, and in English
    DEN UA /OV 40SW DEN/TM 1255/FLDURD/TP B738/TB MOD 200-160
    Report
    a routine report filed through DEN
    Where
    40SW den
    Time
    12:55 UTC
    Height
    during the descent
    Aircraft
    B738
    Turbulence
    moderate from 20,000 ft to 16,000 ft
  • B39M at 36,000 ft, 7 nm north, 8:18 am CDT (13:18 UTC): no turbulence. At the departure end, 7 nm north of the line.
    as filed, and in English
    PWK UA /OV OBK/TM 1318/FL360/TP B39M/TB NEG
    Report
    a routine report filed through PWK
    Where
    over OBK
    Time
    13:18 UTC
    Height
    at 36,000 ft
    Aircraft
    B39M
    Turbulence
    none
  • C17 at 2,000 ft, 19 nm south, 10:06 am CDT (15:06 UTC): overcast above 2,000 ft, remarks: during the descent. At the departure end, 19 nm south of the line.
    as filed, and in English
    KADW UA /OV 1L ARR/TM 1506/FL020/TP C17/SK OVC020/WV 23KT HEAD WIND/RM DURD
    Report
    a routine report filed through KADW
    Where
    1L arrival
    Time
    15:06 UTC
    Height
    at 2,000 ft
    Aircraft
    C17
    Sky
    overcast from 2,000 ft
    Wind
    23 knots head wind
    Remarks
    during the descent
  • P46T at 31,000 ft, 46 nm north, 8:37 am CDT (13:37 UTC): light chop turbulence. 200 nm along the route, 46 nm north of the line.
    as filed, and in English
    ALO UA /OV ALO270005/TM 1337/FL310/TP P46T/TB INTMT LGT CHOP
    Report
    a routine report filed through ALO
    Where
    5 nm west (270°) of ALO
    Time
    13:37 UTC
    Height
    at 31,000 ft
    Aircraft
    P46T
    Turbulence
    intermittent light chop
  • B38M at 17,000 ft, 24 nm south, 7:41 am CDT (12:41 UTC): no turbulence, remarks: during the climb. 400 nm along the route, 24 nm south of the line.
    as filed, and in English
    LNK UA /OV LNK/TM 1241/FL170/TP B38M/TB NEG/RM DURC
    Report
    a routine report filed through LNK
    Where
    over LNK
    Time
    12:41 UTC
    Height
    at 17,000 ft
    Aircraft
    B38M
    Turbulence
    none
    Remarks
    during the climb
  • B38M at 39,000 ft, 19 nm south, 7:43 am CDT (12:43 UTC): light chop turbulence. 510 nm along the route, 19 nm south of the line.
    as filed, and in English
    HSI UA /OV HSI270030/TM 1243/FL390/TP B38M/TB CONS LGT CHOP
    Report
    a routine report filed through HSI
    Where
    30 nm west (270°) of HSI
    Time
    12:43 UTC
    Height
    at 39,000 ft
    Aircraft
    B38M
    Turbulence
    continuous light chop
  • B738 at 38,000 ft, 19 nm north, 8:09 am CDT (13:09 UTC): light chop turbulence, remarks: ZDVWC-35. 580 nm along the route, 19 nm north of the line.
    as filed, and in English
    LBF UA /OV LBF/TM 1309/FL380/TP B738/TB CONS LGT CHOP/RM -ZDVWC-35
    Report
    a routine report filed through LBF
    Where
    over LBF
    Time
    13:09 UTC
    Height
    at 38,000 ft
    Aircraft
    B738
    Turbulence
    continuous light chop
    Remarks
    ZDVWC-35

7 more routine reports are on the map.

Winds aloft along the route, and the time en route the forecast for use 14:00–21:00 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 7 forecast points nearest it (JOT, DBQ, DSM, OMA, GRI, GLD, DEN). A plus sign is a headwind, a minus sign a tailwind.

HeightAverage windHead- or tailwindTemperatureGround speedTime en routeArrival
4,500 ft240° at 26 kt+25 kt19 °C95 kt8 h 19 min5:56 pm MDT (23:56 UTC)
6,500 ft240° at 28 kt+27 kt18 °C93 kt8 h 30 min6:07 pm MDT (00:07 UTC)
8,500 ft240° at 28 kt+26 kt13 °C94 kt8 h 24 min6:01 pm MDT (00:01 UTC)
10,500 ft240° at 31 kt+29 kt9 °C91 kt8 h 41 min6:18 pm MDT (00:18 UTC)
12,500 ft240° at 34 kt+33 kt5 °C87 kt9 h 05 min6:42 pm MDT (00:42 UTC)
14,500 ft240° at 35 kt+34 kt0 °C86 kt9 h 11 min6:48 pm MDT (00:48 UTC)
16,500 ft240° at 36 kt+35 kt-5 °C85 kt9 h 18 min6:55 pm MDT (00:55 UTC)
18,000 ft FL180240° at 37 kt+36 kt-8 °C84 kt9 h 24 min7:01 pm MDT (01:01 UTC)
24,000 ft FL240250° at 46 kt+45 kt-21 °C75 kt10 h 32 min8:09 pm MDT (02:09 UTC)
30,000 ft FL300260° at 63 kt+64 kt-31 °C56 kt14 h 06 min11:43 pm MDT (05:43 UTC)
34,000 ft FL340260° at 72 kt+73 kt-37 °C47 kt16 h 49 min2:26 am MDT (08:26 UTC)
39,000 ft FL390260° at 70 kt+71 kt-47 °C49 kt16 h 07 min1:44 am MDT (07:44 UTC)

Based on data from the 12th at 12:00 UTC; valid on the 12th at 18:00 UTC for use 14:00 to 21:00 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
JOTused from 0 nm out; 36 nm from the line230/30250/26 16°270/27 11°280/34 5°290/32 -8°280/37 -21°280/40 -36°290/46 -37°290/56 -47°
DBQused from 50 nm out; 55 nm from the line250/26240/32 19°250/35 11°260/37 5°270/35 -9°270/40 -21°270/43 -35°280/49 -37°280/58 -46°
DSMused from 200 nm out; 36 nm from the line230/34230/32 20°220/33 12°240/35 5°250/39 -7°250/43 -21°280/61 -31°280/73 -37°280/67 -47°
OMAused from 300 nm out; 37 nm from the line210/23240/34 20°230/40 14°220/43 7°240/38 -8°250/47 -21°270/70 -29°270/79 -36°270/68 -48°
GRIused from 400 nm out; 48 nm from the line270/26 19°230/33 13°230/39 8°230/43 -9°240/55 -21°250/76 -28°260/84 -36°260/68 -47°
GLDused from 550 nm out; 99 nm from the line240/22250/24 13°250/39 6°230/42 -8°230/55 -21°240/87 -30°240/96 -36°250/93 -48°
DENused from 700 nm out; 47 nm from the line230/7 11°230/13 4°230/40 -9°230/48 -20°240/66 -32°240/88 -38°230/100 -47°

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
PWK Chicago/Prospect Heights/Wheeling, IL departure VFR from the west-southwest (240°) at 7 knots 10+ mi none 644 ft 9:52 am CDT (14:52 UTC)
RFD Chicago/Rockford, IL 50 nm out, 9 nm north of the line, tower VFR Sky: a broken layer at 25,000 feet from the south-southwest (200°) at 10 knots 10+ mi 25,000 ft 742 ft 14:54 UTC
SFY Savanna, IL 100 nm out, 4 nm north of the line VFR from the south (190°) at 6 knots 10+ mi none 616 ft 15:15 UTC
CID Cedar Rapids, IA 170 nm out, 2 nm northwest of the line, tower VFR Sky: scattered clouds at 10,000 feet from the south (190°) at 10 knots 10+ mi none 869 ft 14:52 UTC
DSM Des Moines, IA 260 nm out, 9 nm south of the line, tower VFR Sky: a few clouds at 10,000 feet, a few clouds at 20,000 feet, a broken layer at 25,000 feet from the south-southwest (210°) at 13 knots, gusting to 21 10+ mi 25,000 ft 957 ft 14:54 UTC
OMA Omaha, NE 360 nm out, 8 nm south of the line, tower VFR Sky: a few clouds at 12,000 feet, scattered clouds at 25,000 feet from the south (170°) at 13 knots 10+ mi none 984 ft 14:52 UTC
GRI Grand Island, NE 470 nm out, 9 nm south of the line, tower VFR from the southwest (220°) at 13 knots 10+ mi none 1,847 ft 14:53 UTC
CZD Cozad, NE 550 nm out, 1 nm northeast of the line no report just now 2,503 ft
IML Imperial, NE 630 nm out, 6 nm southeast of the line VFR from the west-northwest (300°) at 4 knots 10+ mi none 3,276 ft 14:53 UTC
AKO Akron, CO 700 nm out, 7 nm south of the line VFR from the west (260°) at 12 knots 10+ mi none 4,716 ft 14:53 UTC
DEN Denver, CO 770 nm out, 8 nm south of the line, tower VFR Sky: a few clouds at 8,000 feet, a few clouds at 12,000 feet from the south-southwest (210°) at 12 knots 10+ mi none 5,433 ft 14:53 UTC
BJC Denver, CO destination VFR from the southeast (130°) at 5 knots 10+ mi none 5,673 ft 9:00 am MDT (15:00 UTC)

The highest airport on this list sits at 5,673 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At BJC when you get there the forecast at the estimated arrival, 5:56 pm MDT (23:56 UTC)

Wind from the south-southeast at 9 knots, visibility more than 6 miles, clear skies VFR

The whole forecast for BJC
  • From Mon 6:00 am MDT (12:00 UTC): wind light and variable, visibility more than 6 miles, clear skies
  • From Mon 12:00 pm MDT (18:00 UTC): wind from the south-southeast at 9 knots, visibility more than 6 miles, clear skies
  • From Mon 8:00 pm MDT (02:00 UTC): wind from the west-northwest at 7 knots, visibility more than 6 miles, a few clouds at 15,000 feet
  • From Mon 11:00 pm MDT (05:00 UTC): wind from the north at 8 knots, visibility more than 6 miles, a few clouds at 2,000 feet, scattered clouds at 4,000 feet
  • From Tue 4:00 am MDT (10:00 UTC): wind from the north-northeast at 8 knots, visibility more than 6 miles, 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 PWK 6:15 pm CDT (23:15 UTC), at BJC 6:24 pm MDT (00:24 UTC) (civil twilight ends 6:51 pm MDT (00:51 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 upper Mississippi valley
Radar now, the upper Mississippi valley · loop National Weather Service
Radar now, the northern Rockies
Radar now, the northern Rockies · loop National Weather Service
Radar now, the southern Rockies
Radar now, the southern Rockies · 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: Chicago Executive, Rocky Mountain Metro Airport.