St. Louis Downtown Airport to James M Cox Dayton International CPS → DAY
287 nautical miles (331 statute miles) east on a straight line, true course 072°, about 072° magnetic at the departure end (variation 0E). At 120 knots that is 1 h 48 min at the quickest height in today's winds (34,000 ft, a 40-knot tailwind), arriving about 6:27 am EDT (10:27 UTC), after sunset at the destination. Right now CPS is VFR, wind calm; DAY is low IFR, wind from the west-northwest (300°) 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: 6 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 SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist, fog). Over the last 69 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 CPS.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- B763 at 200 ft, 46 nm south, 3:05 am CDT (08:05 UTC): sky obscured, remarks: during the climb. 248 nm along the route, 46 nm south of the line.
as filed, and in English
CVG UA /OV CVG270001/TM 0805/FL002/TP B763/SK VV002/RM DURC
- Report
- a routine report filed through CVG
- Where
- 1 nm west (270°) of CVG
- Time
- 08:05 UTC
- Height
- at 200 ft
- Aircraft
- B763
- Sky
- sky obscured from 200 ft
- Remarks
- during the climb
- B752 climbing, 45 nm south, 2:37 am CDT (07:37 UTC): overcast. 248 nm along the route, 45 nm south of the line.
as filed, and in English
CVG UA /OV 5 W CVG/TM 0737/FLDURC/TP B752/SK B001 OVC T015
- Report
- a routine report filed through CVG
- Where
- 5 west cvg
- Time
- 07:37 UTC
- Height
- during the climb
- Aircraft
- B752
- Sky
- B001 overcast T015
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 5 forecast points nearest it (STL, SPI, EVV, IND, CVG). A plus sign is a headwind, a minus sign a tailwind.
| Height | Average wind | Head- or tailwind | Temperature | Ground speed | Time en route | Arrival |
|---|---|---|---|---|---|---|
| 3,500 ft | 270° at 22 kt | −22 kt | 142 kt | 2 h 01 min | 6:40 am EDT (10:40 UTC) | |
| 5,500 ft | 270° at 19 kt | −18 kt | 138 kt | 2 h 05 min | 6:44 am EDT (10:44 UTC) | |
| 7,500 ft | 270° at 17 kt | −16 kt | 12 °C | 136 kt | 2 h 07 min | 6:46 am EDT (10:46 UTC) |
| 9,500 ft | 270° at 16 kt | −16 kt | 8 °C | 136 kt | 2 h 07 min | 6:46 am EDT (10:46 UTC) |
| 11,500 ft | 270° at 18 kt | −17 kt | 6 °C | 137 kt | 2 h 06 min | 6:45 am EDT (10:45 UTC) |
| 13,500 ft | 270° at 20 kt | −19 kt | 2 °C | 139 kt | 2 h 04 min | 6:43 am EDT (10:43 UTC) |
| 15,500 ft | 280° at 23 kt | −21 kt | -2 °C | 141 kt | 2 h 02 min | 6:41 am EDT (10:41 UTC) |
| 17,500 ft | 280° at 27 kt | −23 kt | -6 °C | 143 kt | 2 h | 6:39 am EDT (10:39 UTC) |
| 18,000 ft FL180 | 280° at 27 kt | −24 kt | -7 °C | 144 kt | 2 h | 6:39 am EDT (10:39 UTC) |
| 24,000 ft FL240 | 280° at 33 kt | −30 kt | -19 °C | 150 kt | 1 h 55 min | 6:34 am EDT (10:34 UTC) |
| 30,000 ft FL300 | 280° at 40 kt | −35 kt | -33 °C | 155 kt | 1 h 51 min | 6:30 am EDT (10:30 UTC) |
| 34,000 ft FL340 | 290° at 53 kt | −40 kt | -41 °C | 160 kt | 1 h 48 min | 6:27 am EDT (10:27 UTC) |
| 39,000 ft FL390 | 300° at 59 kt | −38 kt | -50 °C | 158 kt | 1 h 49 min | 6:28 am EDT (10:28 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
| Point | From | 3,000 | 6,000 | 9,000 | 12,000 | 18,000 | 24,000 | 30,000 | 34,000 | 39,000 |
|---|---|---|---|---|---|---|---|---|---|---|
| STL | used from 0 nm out; 34 nm from the line | 250/26 | 240/21 15° | 240/22 11° | 250/23 6° | 270/28 -7° | 260/30 -19° | 280/52 -31° | 280/57 -40° | 300/57 -49° |
| SPI | used from 50 nm out; 72 nm from the line | 260/28 | 250/22 15° | 250/14 9° | 260/20 6° | 280/27 -7° | 280/34 -19° | 280/48 -32° | 280/59 -41° | 300/60 -49° |
| EVV | used from 99 nm out; 69 nm from the line | 270/25 | 290/17 15° | 260/10 8° | 270/16 5° | 280/29 -6° | 280/33 -19° | 290/38 -33° | 300/53 -41° | 310/54 -51° |
| IND | used from 149 nm out; 23 nm from the line | 270/22 | 290/19 15° | 270/19 8° | 270/18 4° | 290/28 -7° | 280/35 -20° | 270/37 -34° | 300/51 -42° | 300/61 -51° |
| CVG | used from 248 nm out; 46 nm from the line | 300/19 | 310/23 15° | 320/20 9° | 310/18 3° | 300/26 -6° | 290/36 -19° | 310/32 -34° | 310/53 -43° | 310/61 -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
| Airport | Where | Conditions | Wind | Visibility | Ceiling | Elevation | Reported |
|---|---|---|---|---|---|---|---|
| CPS Cahokia/St Louis, IL | departure | VFR | calm | 10+ mi | none | 412 ft | 2:53 am CDT (07:53 UTC) |
| GRE Greenville, IL | 40 nm out, 4 nm north of the line | no report just now | 540 ft | ||||
| VLA Vandalia, IL | 50 nm out, 10 nm north of the line | no report just now | 537 ft | ||||
| RSV Robinson, IL | 119 nm out, 9 nm southeast of the line | VFR | from the south-southeast (150°) at 3 knots | 10+ mi | none | 461 ft | 08:15 UTC |
| HUF Terre Haute, IN | 139 nm out, 12 nm north of the line, tower | VFR | from the east-northeast (060°) at 3 knots | 10+ mi | none | 589 ft | 07:53 UTC |
| IND Indianapolis, IN | 188 nm out, 14 nm north of the line, tower | low IFR Sky: a few clouds at 400 feet Weather: mist | calm | 0.75 mi | none | 796 ft | 08:25 UTC |
| GEZ Shelbyville, IN | 208 nm out, 4 nm east of the line | low IFR Sky: sky obscured at 100 feet Weather: fog | calm | 0.25 mi | 100 ft | 802 ft | 08:08 UTC |
| RID Richmond, IN | 258 nm out, 1 nm south of the line | low IFR Sky: overcast at 100 feet Weather: fog | calm | 0.25 mi | 100 ft | 1,139 ft | 08:35 UTC |
| DAY Dayton, OH | destination | low IFR Sky: overcast at 400 feet | from the west-northwest (300°) at 5 knots | 8 mi | 400 ft | 1,009 ft | 3:56 am EDT (07:56 UTC) |
The highest airport on this list sits at 1,139 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At DAY when you get there the forecast at the estimated arrival, 6:27 am EDT (10:27 UTC)
Wind from the west-southwest at 3 knots, visibility 3 miles, mist, scattered clouds at 200 feet marginal VFR
At times between Mon 6:00 am EDT (10:00 UTC) and 9:00 am EDT (13:00 UTC): visibility 1 mile, mist IFR
The whole forecast for DAY
- From Mon 4:00 am EDT (08:00 UTC): wind light and variable, visibility more than 6 miles, overcast at 400 feet
- From Mon 6:00 am EDT (10:00 UTC): wind from the west-southwest at 3 knots, visibility 3 miles, mist, scattered clouds at 200 feet
- At times between Mon 6:00 am EDT (10:00 UTC) and 9:00 am EDT (13:00 UTC): visibility 1 mile, mist
- From Mon 10:00 am EDT (14:00 UTC): wind from the south-southwest at 11 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
The forecast for CPS, the departure
- From Mon 1:00 am CDT (06:00 UTC): wind from the south at 5 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
- From Mon 11:00 am CDT (16:00 UTC): wind from the southwest at 10 knots, visibility more than 6 miles, clear skies
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 CPS 6:27 pm CDT (23:27 UTC), at DAY 7:02 pm EDT (23:02 UTC) (civil twilight ends 7:29 pm EDT (23:29 UTC)). At 120 knots the arrival at DAY is before sunrise there (7:43 am EDT (11:43 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. Louis Downtown Airport, James M Cox Dayton International.