Plan a flight · Mon 11:04 am CDT (16:04 UTC)

Dane County Rgnl/Truax Field to Boise Air Trml/Gowen Field MSN → BOI

1,169 nautical miles (1,345 statute miles) west on a straight line, true course 281°, about 284° magnetic at the departure end (variation 3W). At 120 knots that is 10 h 38 min at the quickest height in today's winds (4,500 ft, a 10-knot headwind), arriving about 8:42 pm MDT (02:42 UTC), after sunset at the destination. Right now MSN is VFR, wind variable at 6 knots; BOI is VFR, wind from the northwest (320°) 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: 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

SIGMET C24C: thunderstorms (a convective SIGMET) up to 37,000 ft, moving from the southwest at 40 knots, until 12:55 pm CDT (17:55 UTC). Near the route, 480 nm along the route.
as issued
```
WSUS32 KKCI 121555
MKCC WST 121555
CONVECTIVE SIGMET 24C
VALID UNTIL 1755Z
SD ND
FROM GFK-FAR-PIR-DPR-50SE MOT-GFK
INTSF AREA TS MOV FROM 21040KT. TOPS TO FL370.
```
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 230 to 1099 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 769 to 1129 nm out.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 879 to 1109 nm out.
AIRMET ZULU 2C: moderate icing up to 18,000 ft. Over the route from 1109 to 1129 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 MSN.

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

C510 at 17,000 ft, 4 nm southeast, 8:27 am CDT (13:27 UTC): no turbulence. At the departure end, 4 nm southeast of the line.
as filed, and in English
```
LNR UA /OV LNR/TM 1327/FL170/TP C510/TB NEG
```
Report
a routine report filed through LNR
Where
over LNR
Time
13:27 UTC
Height
at 17,000 ft
Aircraft
C510
Turbulence
none
PC12 at 20,000 ft, 4 nm southeast, 8:27 am CDT (13:27 UTC): no turbulence. At the departure end, 4 nm southeast of the line.
as filed, and in English
```
LNR UA /OV 0WI4/TM 1327/FL200/TP PC12/TB NEG
```
Report
a routine report filed through LNR
Where
over 0WI4
Time
13:27 UTC
Height
at 20,000 ft
Aircraft
PC12
Turbulence
none
BE36 at 6,000 ft, 5 nm southwest, 8:12 am CDT (13:12 UTC): no turbulence. 220 nm along the route, 5 nm southwest of the line.
as filed, and in English
```
FRM UA /OV FRM/TM 1312/FL060/TP BE36/TB NEG
```
Report
a routine report filed through FRM
Where
over FRM
Time
13:12 UTC
Height
at 6,000 ft
Aircraft
BE36
Turbulence
none
SF50 at 13,000 ft, 41 nm north, 8:36 am CDT (13:36 UTC): no turbulence, no icing, clear from 13,000 ft to 60,000 ft. 260 nm along the route, 41 nm north of the line.
as filed, and in English
```
RWF UA /OV RWF/TM 1336/FL130/TP SF50/SK SKC/TB NEG/IC NEG
```
Report
a routine report filed through RWF
Where
over RWF
Time
13:36 UTC
Height
at 13,000 ft
Aircraft
SF50
Sky
clear
Turbulence
none
Icing
none
SF50 at 4,000 ft, 20 nm north, 8:47 am CDT (13:47 UTC): no turbulence, no icing. 480 nm along the route, 20 nm north of the line.
as filed, and in English
```
PIR UA /OV PIR/TM 1347/FL040/TP SF50/SK BASE008-TOP040/TB NEG/IC NEG
```
Report
a routine report filed through PIR
Where
over PIR
Time
13:47 UTC
Height
at 4,000 ft
Aircraft
SF50
Sky
BASE008-TOP040
Turbulence
none
Icing
none
BE9L at 15,000 ft, 25 nm north, 9:53 am CDT (14:53 UTC): no turbulence, no icing. 510 nm along the route, 25 nm north of the line.
as filed, and in English
```
PIR UA /OV PIR270040/TM 1453/FL150/TP BE9L/TB NEG/IC NEG
```
Report
a routine report filed through PIR
Where
40 nm west (270°) of PIR
Time
14:53 UTC
Height
at 15,000 ft
Aircraft
BE9L
Turbulence
none
Icing
none
BE9L at 15,000 ft, 16 nm north, 9:41 am CDT (14:41 UTC): light chop turbulence, remarks: zdvwc. 539 nm along the route, 16 nm north of the line.
as filed, and in English
```
PHP UA /OV PHP340020/TM 1441/FL150/TP BE9L/SK TOP 155 BKN/TB OCNL LGT CHOP/RM -ZDVWC
```
Report
a routine report filed through PHP
Where
20 nm north (340°) of PHP
Time
14:41 UTC
Height
at 15,000 ft
Aircraft
BE9L
Sky
top 15,500 ft broken
Turbulence
occasional light chop
Remarks
zdvwc
UAL1095 at 36,000 ft, 40 nm south, 8:34 am CDT (13:34 UTC): light turbulence, -38 °C, wind 236° at 61 knots. 569 nm along the route, 40 nm south of the line.
as filed, and in English
```
ARP UAL1095 4328N 10223W 1334 F360 MS38 236/061KT TB LIGHT SK IC
```
Report
a routine report filed through ARP
E170 at 7,500 ft, 22 nm south, 10:22 am CDT (15:22 UTC): overcast above 7,500 ft, remarks: runway 19 brag. 929 nm along the route, 22 nm south of the line.
as filed, and in English
```
JAC UA /OV N JAC/TM 1522/FL075/TP E170/SK OVC075/RM RWY 19 BRAG
```
Report
a routine report filed through JAC
Where
north jac
Time
15:22 UTC
Height
at 7,500 ft
Aircraft
E170
Sky
overcast from 7,500 ft
Remarks
runway 19 brag
E170 descending, 24 nm south, 10:27 am CDT (15:27 UTC): remarks: during the descent runway 21 bases 5,100 ft. 989 nm along the route, 24 nm south of the line.
as filed, and in English
```
IDA UA /OV IDA/TM 1527/FLUNK/TP E170/RM DURD RW21 BASES 051
```
Report
a routine report filed through IDA
Where
over IDA
Time
15:27 UTC
Height
at height unknown
Aircraft
E170
Remarks
during the descent runway 21 bases 5,100 ft
E75 at 7,000 ft, 15 nm south, 10:18 am CDT (15:18 UTC): no icing. 1089 nm along the route, 15 nm south of the line.
as filed, and in English
```
SUN UA /OV SUN/TM 1518/FL070/TP E75/SK BASE057 TOP 094/IC NEG/ZLC
```
Report
a routine report filed through SUN
Where
over SUN
Time
15:18 UTC
Height
at 7,000 ft
Aircraft
E75
Sky
BASE057 top 9,400 ft
Icing
neg/zlc
E75 at 7,000 ft, 15 nm south, 10:17 am CDT (15:17 UTC): a routine report with nothing remarked on. 1089 nm along the route, 15 nm south of the line.
as filed, and in English
```
SUN UA /OV SUN/TM 1517/FL070/TP E75/SK BASE 057/ZLC
```
Report
a routine report filed through SUN
Where
over SUN
Time
15:17 UTC
Height
at 7,000 ft
Aircraft
E75
Sky
base 5,700 ft; zlc
MU2 at 12,000 ft, 15 nm south, 9:07 am CDT (14:07 UTC): a routine report with nothing remarked on. 1089 nm along the route, 15 nm south of the line.
as filed, and in English
```
SUN UA /OV SUN/TM 1407/FL120/TP MU2/SK BASE 055 TOP 118 /ZLC
```
Report
a routine report filed through SUN
Where
over SUN
Time
14:07 UTC
Height
at 12,000 ft
Aircraft
MU2
Sky
base 5,500 ft top 11,800 ft; zlc

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 9 forecast points nearest it (DBQ, LSE, MCW, FSD, 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	260° at 11 kt	+10 kt	7 °C	110 kt	10 h 38 min	8:42 pm MDT (02:42 UTC)
6,500 ft	250° at 12 kt	+11 kt	12 °C	109 kt	10 h 43 min	8:47 pm MDT (02:47 UTC)
8,500 ft	240° at 16 kt	+13 kt	8 °C	107 kt	10 h 56 min	9:00 pm MDT (03:00 UTC)
10,500 ft	240° at 20 kt	+16 kt	4 °C	104 kt	11 h 14 min	9:18 pm MDT (03:18 UTC)
12,500 ft	230° at 23 kt	+19 kt	0 °C	101 kt	11 h 34 min	9:38 pm MDT (03:38 UTC)
14,500 ft	230° at 27 kt	+21 kt	-4 °C	99 kt	11 h 48 min	9:52 pm MDT (03:52 UTC)
16,500 ft	230° at 32 kt	+24 kt	-9 °C	96 kt	12 h 11 min	10:15 pm MDT (04:15 UTC)
18,000 ft FL180	230° at 35 kt	+26 kt	-12 °C	94 kt	12 h 26 min	10:30 pm MDT (04:30 UTC)
24,000 ft FL240	230° at 44 kt	+33 kt	-24 °C	87 kt	13 h 26 min	11:30 pm MDT (05:30 UTC)
30,000 ft FL300	240° at 48 kt	+40 kt	-33 °C	80 kt	14 h 37 min	12:41 am MDT (06:41 UTC)
34,000 ft FL340	240° at 49 kt	+43 kt	-37 °C	77 kt	15 h 11 min	1:15 am MDT (07:15 UTC)
39,000 ft FL390	240° at 49 kt	+44 kt	-44 °C	76 kt	15 h 23 min	1:27 am MDT (07:27 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

Point	From	3,000	6,000	9,000	12,000	18,000	24,000	30,000	34,000	39,000
DBQ	used from 0 nm out; 60 nm from the line	250/26	240/32 19°	250/35 11°	260/37 5°	270/35 -9°	270/40 -21°	270/43 -35°	280/49 -37°	280/58 -46°
LSE	used from 50 nm out; 33 nm from the line	240/16	230/27 20°	250/35 12°	260/28 5°	260/30 -9°	260/37 -21°	260/38 -36°	280/44 -37°	280/52 -47°
MCW	used from 150 nm out; 27 nm from the line	220/19	210/29 20°	230/35 13°	250/35 5°	250/33 -9°	260/44 -21°	260/46 -33°	270/58 -37°	270/59 -46°
FSD	used from 250 nm out; 52 nm from the line	260/9	210/16 18°	220/27 14°	230/28 6°	240/39 -9°	240/48 -22°	260/52 -32°	260/61 -38°	260/60 -46°
PIR	used from 400 nm out; 58 nm from the line		300/15 10°	270/10 10°	220/18 4°	220/36 -11°	230/43 -21°	240/48 -33°	240/51 -37°	240/55 -44°
RAP	used from 549 nm out; 25 nm from the line		310/18 6°	270/15 6°	260/20 2°	240/28 -11°	240/42 -23°	240/47 -35°	230/47 -36°	240/56 -44°
LND	used from 749 nm out; 105 nm from the line			220/16 3°	230/26 -1°	210/30 -14°	220/57 -26°	220/60 -31°	220/62 -38°	220/52 -44°
PIH	used from 949 nm out; 71 nm from the line		L/V	180/8 -1°	190/21 -6°	210/56 -18°	190/64 -28°	210/68 -31°	210/60 -36°	210/54 -42°
BOI	used from 1099 nm out; 45 nm from the line		360/9 1°	L/V -5°	180/10 -12°	200/58 -21°	180/62 -31°	200/41 -31°	210/34 -32°	200/29 -41°

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
MSN Madison, WI	departure	VFR Sky: a few clouds at 23,000 feet	variable at 6 knots	10+ mi	none	886 ft	10:53 am CDT (15:53 UTC)
LNR Lone Rock, WI	40 nm out, 4 nm southeast of the line	VFR	from the southwest (230°) at 7 knots	10+ mi	none	717 ft	15:56 UTC
RST Rochester, MN	140 nm out, 23 nm north of the line, tower	VFR	from the southwest (230°) at 11 knots	7 mi	none	1,317 ft	15:54 UTC
FSD Sioux Falls, SD	320 nm out, 19 nm south of the line, tower	VFR Sky: a few clouds at 10,000 feet, a few clouds at 25,000 feet	calm	10+ mi	none	1,430 ft	15:56 UTC
MHE Mitchell, SD	380 nm out, 12 nm south of the line	low IFR Sky: overcast at 200 feet Weather: mist	from the northwest (310°) at 11 knots	1.25 mi	200 ft	1,304 ft	15:53 UTC
PHP Philip, SD	539 nm out, 6 nm southeast of the line	marginal VFR Sky: overcast at 1,000 feet	from the north-northwest (340°) at 8 knots	10+ mi	1,000 ft	2,209 ft	15:55 UTC
RAP Rapid City, SD	599 nm out, 6 nm south of the line, tower	IFR Sky: overcast at 600 feet	from the north-northwest (330°) at 9 knots	10+ mi	600 ft	3,203 ft	15:52 UTC
WRL Worland, WY	809 nm out, 9 nm south of the line	marginal VFR Sky: a broken layer at 1,000 feet, a broken layer at 2,600 feet, overcast at 4,300 feet	variable at 4 knots	10+ mi	1,000 ft	4,251 ft	15:53 UTC
JAC Jackson, WY	929 nm out, 23 nm south of the line, tower	VFR Sky: a broken layer at 3,500 feet, overcast at 4,700 feet	from the south (190°) at 4 knots	10+ mi	3,500 ft	6,451 ft	15:56 UTC
IDA Idaho Falls, ID	989 nm out, 24 nm south of the line, tower	low IFR Sky: a broken layer at 400 feet, overcast at 1,000 feet	from the southwest (220°) at 11 knots	10+ mi	400 ft	4,743 ft	15:53 UTC
SUN Hailey, ID	1089 nm out, 15 nm south of the line, tower	IFR Sky: overcast at 500 feet	from the southeast (140°) at 4 knots	7 mi	500 ft	5,319 ft	15:50 UTC
BOI Boise, ID	destination	VFR Sky: scattered clouds at 8,000 feet, overcast at 9,500 feet	from the northwest (320°) at 7 knots	10+ mi	9,500 ft	2,871 ft	9:53 am MDT (15:53 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, 8:42 pm MDT (02:42 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 6:00 am MDT (12:00 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 MSN, the departure

From Mon 10:00 am CDT (15:00 UTC): wind from the south-southwest at 9 knots, visibility more than 6 miles, scattered clouds at 20,000 feet
From Mon 11:00 am CDT (16:00 UTC): wind from the southwest at 10 knots, gusting to 19, visibility more than 6 miles, a few clouds at 20,000 feet
From Mon 9:00 pm CDT (02:00 UTC): wind from the southwest at 8 knots, visibility more than 6 miles, low-level wind shear, a few clouds at 10,000 feet
From Tue 1:00 am CDT (06:00 UTC): wind from the west at 9 knots, visibility more than 6 miles, 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 MSN 6:19 pm CDT (23:19 UTC), at BOI 7:05 pm MDT (01:05 UTC) (civil twilight ends 7:33 pm MDT (01:33 UTC)). At 120 knots the arrival at BOI is after sunset there (7:06 pm MDT (01:06 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 · loop National Weather Service

Radar now, the northern Rockies · loop National Weather Service

Radar now, the Pacific Northwest · loop National Weather Service

Radar, the whole country · loop National Weather Service

Surface analysis now Weather Prediction Center

Forecast chart, 12 hours ahead Weather Prediction Center

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: Dane County Rgnl/Truax Field, Boise Air Trml/Gowen Field.