The Eastern Iowa Airport to Boise Air Trml/Gowen Field CID → BOI
1,082 nautical miles (1,245 statute miles) west on a straight line, true course 284°, about 282° magnetic at the departure end (variation 2E). At 120 knots that is 10 h 07 min at the quickest height in today's winds (8,500 ft, a 13-knot headwind), arriving about 2:47 pm MDT (20:47 UTC). Right now CID is VFR, wind from the south-southwest (200°) at 11 knots; BOI is VFR, wind from the west-northwest (290°) at 6 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: 2 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 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 first 318 nm of the route.
- 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 route from 278 to 1042 nm out.
- 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 route from 556 to 625 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Near the route, 645 nm along the route.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 705 to 1042 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 725 to 1022 nm out.
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 CID.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- BE9L at 17,000 ft, 31 nm south, 4:42 am CDT (09:42 UTC): light rime icing from 15,000 ft to 17,000 ft, 0 °C, remarks: zdvwc. 675 nm along the route, 31 nm south of the line.
as filed, and in English
CPR UA /OV DDY250025/TM 0942/FL170/TP BE9L/TA 00/IC LGT RIME 150-170/RM ZDVWC
- Report
- a routine report filed through CPR
- Where
- 25 nm west (250°) of DDY
- Time
- 09:42 UTC
- Height
- at 17,000 ft
- Aircraft
- BE9L
- Temperature
- 0 °C
- Icing
- light rime from 15,000 ft to 17,000 ft
- Remarks
- zdvwc
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 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 9 forecast points nearest it (DSM, OMA, FSD, ONL, PIR, RAP, LND, PIH, BOI). A plus sign is a headwind, a minus sign a tailwind.
| Height | Average wind | Head- or tailwind | Temperature | Ground speed | Time en route | Arrival |
|---|---|---|---|---|---|---|
| 4,500 ft | 250° at 21 kt | +18 kt | 15 °C | 102 kt | 10 h 36 min | 3:16 pm MDT (21:16 UTC) |
| 6,500 ft | 250° at 18 kt | +16 kt | 16 °C | 104 kt | 10 h 24 min | 3:04 pm MDT (21:04 UTC) |
| 8,500 ft | 240° at 17 kt | +13 kt | 10 °C | 107 kt | 10 h 07 min | 2:47 pm MDT (20:47 UTC) |
| 10,500 ft | 230° at 21 kt | +14 kt | 5 °C | 106 kt | 10 h 12 min | 2:52 pm MDT (20:52 UTC) |
| 12,500 ft | 220° at 26 kt | +16 kt | 1 °C | 104 kt | 10 h 24 min | 3:04 pm MDT (21:04 UTC) |
| 14,500 ft | 220° at 29 kt | +18 kt | -4 °C | 102 kt | 10 h 36 min | 3:16 pm MDT (21:16 UTC) |
| 16,500 ft | 220° at 33 kt | +19 kt | -9 °C | 101 kt | 10 h 43 min | 3:23 pm MDT (21:23 UTC) |
| 18,000 ft FL180 | 220° at 35 kt | +20 kt | -12 °C | 100 kt | 10 h 49 min | 3:29 pm MDT (21:29 UTC) |
| 24,000 ft FL240 | 220° at 40 kt | +23 kt | -24 °C | 97 kt | 11 h 09 min | 3:49 pm MDT (21:49 UTC) |
| 30,000 ft FL300 | 230° at 48 kt | +35 kt | -33 °C | 85 kt | 12 h 44 min | 5:24 pm MDT (23:24 UTC) |
| 34,000 ft FL340 | 240° at 50 kt | +40 kt | -36 °C | 80 kt | 13 h 32 min | 6:12 pm MDT (00:12 UTC) |
| 39,000 ft FL390 | 240° at 51 kt | +42 kt | -45 °C | 78 kt | 13 h 52 min | 6:32 pm MDT (00:32 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| DSM | used from 0 nm out; 69 nm from the line | 250/47 | 260/25 20° | 240/19 11° | 240/31 5° | 250/26 -9° | 260/38 -20° | 260/47 -34° | 270/58 -37° | 270/61 -47° |
| OMA | used from 149 nm out; 74 nm from the line | 230/47 | 240/33 21° | 230/22 13° | 220/27 5° | 240/35 -8° | 250/43 -21° | 260/47 -33° | 260/59 -36° | 270/58 -46° |
| FSD | used from 199 nm out; 56 nm from the line | 210/20 | 230/23 21° | 220/25 14° | 230/30 5° | 230/26 -9° | 240/30 -21° | 270/33 -36° | 260/47 -37° | 270/58 -47° |
| ONL | used from 248 nm out; 46 nm from the line | 250/31 22° | 230/27 16° | 220/25 8° | 230/25 -9° | 220/29 -22° | 250/42 -33° | 250/48 -36° | 250/52 -46° | |
| PIR | used from 397 nm out; 81 nm from the line | 230/15 15° | 220/22 14° | 220/24 6° | 200/32 -10° | 210/48 -22° | 240/45 -33° | 240/43 -37° | 250/55 -46° | |
| RAP | used from 447 nm out; 60 nm from the line | 250/28 16° | 260/31 10° | 240/25 4° | 210/35 -10° | 200/45 -23° | 230/47 -31° | 230/47 -36° | 230/51 -46° | |
| LND | used from 645 nm out; 97 nm from the line | 240/10 3° | 240/30 0° | 220/42 -13° | 230/52 -23° | 220/54 -33° | 220/52 -36° | 220/53 -44° | ||
| PIH | used from 844 nm out; 72 nm from the line | 070/8 | 150/19 1° | 180/32 -4° | 210/44 -17° | 210/37 -28° | 210/74 -31° | 220/68 -35° | 220/60 -43° | |
| BOI | used from 993 nm out; 65 nm from the line | 320/11 1° | 280/8 -5° | 220/14 -11° | 200/60 -19° | 190/66 -31° | 210/46 -32° | 220/50 -33° | 220/43 -39° |
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 |
|---|---|---|---|---|---|---|---|
| CID Cedar Rapids, IA | departure | VFR | from the south-southwest (200°) at 11 knots | 10+ mi | none | 869 ft | 4:52 am CDT (09:52 UTC) |
| MIW Marshalltown, IA | 60 nm out, 4 nm east of the line | VFR | from the south (180°) at 10 knots, gusting to 16 | 10+ mi | none | 974 ft | 09:53 UTC |
| SUX Sioux City, IA | 208 nm out, 13 nm south of the line, tower | VFR | from the east (100°) at 3 knots | 10+ mi | none | 1,098 ft | 09:52 UTC |
| VMR Vermillion, SD | 238 nm out, 4 nm north of the line | VFR | calm | 10+ mi | none | 1,146 ft | 10:15 UTC |
| SUO Rosebud, SD | 417 nm out, 8 nm northeast of the line | low IFR Sky: overcast at 200 feet Weather: mist | from the north (010°) at 7 knots | 0.75 mi | 200 ft | 2,724 ft | 10:15 UTC |
| HSR Hot Springs, SD | 526 nm out, 3 nm east of the line | no report just now | 3,150 ft | ||||
| HSG Thermopolis, WY | 744 nm out, 7 nm northeast of the line | marginal VFR Sky: a broken layer at 2,500 feet, overcast at 3,200 feet | from the northeast (040°) at 7 knots | 10+ mi | 2,500 ft | 4,891 ft | 10:15 UTC |
| JAC Jackson, WY | 844 nm out, 3 nm south of the line, tower | VFR Sky: a broken layer at 3,800 feet, overcast at 5,000 feet Weather: light rain | calm | 10+ mi | 3,800 ft | 6,451 ft | 09:56 UTC |
| IDA Idaho Falls, ID | 903 nm out, 9 nm south of the line, tower | VFR Sky: scattered clouds at 2,300 feet, overcast at 3,600 feet | from the north-northeast (030°) at 7 knots | 10+ mi | 3,600 ft | 4,743 ft | 10:13 UTC |
| SUN Hailey, ID | 1002 nm out, 8 nm southeast of the line, tower | marginal VFR Sky: scattered clouds at 2,500 feet, a broken layer at 3,000 feet, overcast at 3,900 feet Weather: light rain | calm | 7 mi | 3,000 ft | 5,319 ft | 10:15 UTC |
| BOI Boise, ID | destination | VFR Sky: a broken layer at 10,000 feet | from the west-northwest (290°) at 6 knots | 10+ mi | 10,000 ft | 2,871 ft | 3:53 am MDT (09:53 UTC) |
The highest airport on this list sits at 6,451 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At BOI when you get there the forecast at the estimated arrival, 2:47 pm MDT (20:47 UTC)
Wind from the northwest at 10 knots, visibility more than 6 miles, a broken layer at 10,000 feet VFR
The whole forecast for BOI
- From Mon 12:00 am MDT (06:00 UTC): wind light and variable, visibility more than 6 miles, a broken layer at 8,000 feet
- From Mon 2:00 am MDT (08:00 UTC): wind from the west-northwest at 5 knots, visibility more than 6 miles, scattered clouds at 4,000 feet, a broken layer at 8,000 feet
- From Mon 12:00 pm MDT (18:00 UTC): wind from the northwest at 10 knots, visibility more than 6 miles, a broken layer at 10,000 feet
The forecast for CID, the departure
- From Mon 1:00 am CDT (06:00 UTC): wind from the south at 7 knots, visibility more than 6 miles, low-level wind shear, a broken layer at 25,000 feet
- From Mon 10:00 am CDT (15:00 UTC): wind from the south-southwest at 15 knots, gusting to 22, visibility more than 6 miles, scattered clouds at 25,000 feet
- From Mon 7:00 pm CDT (00:00 UTC): wind from the south-southwest at 9 knots, visibility more than 6 miles, low-level wind shear, a few clouds at 25,000 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 CID 6:30 pm CDT (23:30 UTC), at BOI 7:05 pm MDT (01:05 UTC) (civil twilight ends 7:33 pm MDT (01:33 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: The Eastern Iowa Airport, Boise Air Trml/Gowen Field.