Plan a flight · Mon 6:21 am MDT (12:21 UTC)

Joslin Fld/Magic Valley Regional to Westchester County TWF → HPN

1,810 nautical miles (2,083 statute miles) east on a straight line, true course 079°, about 066° magnetic at the departure end (variation 13E). At 120 knots that is 10 h 46 min at the quickest height in today's winds (39,000 ft, a 48-knot tailwind), arriving about 7:07 pm EDT (23:07 UTC), after sunset at the destination. Right now TWF is marginal VFR, wind from the west (260°) at 7 knots; HPN is IFR, wind from the north-northwest (330°) at 10 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 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 W23W: thunderstorms (a convective SIGMET) up to 27,000 ft, moving from the southwest at 20 knots, until 7:55 am MDT (13:55 UTC). Near the route, at the departure end.
as issued
```
WSUS33 KKCI 121155
MKCW WST 121155
CONVECTIVE SIGMET 23W
VALID UNTIL 1355Z
UT ID
FROM 20WSW PIH-20NE MLD-30SW SLC-20NW BVL-20WSW PIH
AREA TS MOV FROM 24020KT. TOPS TO FL270.
```
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 776 nm of the route.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the first 308 nm of the route.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 368 nm of the route.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Near the route, 368 nm along the route.
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 378 to 448 nm out.
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, 975 nm along the route.
AIRMET SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the last 497 nm of the route.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 24,000 ft to 33,000 ft. Over the last 249 nm of the route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the route from 1562 to 1751 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 TWF.

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

urgent SF50 descending, 25 nm south, 4:50 am MDT (10:50 UTC): light turbulence, overcast above 1,200 ft, remarks: during the descent runway 5. At the destination end, 25 nm south of the line.
as filed, and in English
```
MMU UUA /OV MMU/TM 1050/FLDURD/TP SF50/SK OVC012/TB LGT/RM DURD RWY 5
```
Report
an urgent report filed through MMU
Where
over MMU
Time
10:50 UTC
Height
during the descent
Aircraft
SF50
Sky
overcast from 1,200 ft
Turbulence
light
Remarks
during the descent runway 5
CRJ7 at 4,800 ft, 10 nm northwest, 6:10 am MDT (12:10 UTC): overcast above 4,800 ft, remarks: during the descent runway 21 pih. 90 nm along the route, 10 nm northwest of the line.
as filed, and in English
```
PIH UA /OV KPIH/TM 1210/FL048/TP CRJ7/SK OVC048-TOPUNKN/RM DURD RY21 PIH
```
Report
a routine report filed through PIH
Where
over KPIH
Time
12:10 UTC
Height
at 4,800 ft
Aircraft
CRJ7
Sky
overcast from 4,800 ft, tops unknown
Remarks
during the descent runway 21 pih
BE9L at 17,000 ft, 19 nm south, 3:42 am MDT (09:42 UTC): light rime icing from 15,000 ft to 17,000 ft, 0 °C, remarks: zdvwc. 338 nm along the route, 19 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
B38M at 32,000 ft, 42 nm south, 5:45 am MDT (11:45 UTC): light chop turbulence. 836 nm along the route, 42 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, 11 nm southwest, 4:58 am MDT (10:58 UTC): no turbulence. 1154 nm along the route, 11 nm southwest 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
B739 at 34,000 ft, 30 nm north, 5:49 am MDT (11:49 UTC): no turbulence. 1333 nm along the route, 30 nm north of the line.
as filed, and in English
```
FNT UA /OV FNT340025/TM 1149/FL340/TP B739/TB NEG
```
Report
a routine report filed through FNT
Where
25 nm north (340°) of FNT
Time
11:49 UTC
Height
at 34,000 ft
Aircraft
B739
Turbulence
none
CL35 at 6,000 ft, 8 nm southwest, 4:47 am MDT (10:47 UTC): overcast from 1,400 ft to 2,600 ft; clear from 2,600 ft to 60,000 ft, remarks: clear above 2,600 ft. 1363 nm along the route, 8 nm southwest of the line.
as filed, and in English
```
PTK UA /OV PTK270006/TM 1047/FL060/TP CL35/SK OVC014-TOP026/RM CLEAR ABOVE 026
```
Report
a routine report filed through PTK
Where
6 nm west (270°) of PTK
Time
10:47 UTC
Height
at 6,000 ft
Aircraft
CL35
Sky
overcast from 1,400 ft, tops 2,600 ft
Remarks
clear above 2,600 ft
B722 at 6,000 ft, 47 nm south, 6:08 am MDT (12:08 UTC): a routine report with nothing remarked on. 1373 nm along the route, 47 nm south of the line.
as filed, and in English
```
DTW UA /OV DXO210015/TM 1208/FL060/TP B722/SK TOPS 016
```
Report
a routine report filed through DTW
Where
15 nm southwest (210°) of DXO
Time
12:08 UTC
Height
at 6,000 ft
Aircraft
B722
Sky
tops 1,600 ft
B717 at 400 ft, 32 nm south, 5:23 am MDT (11:23 UTC): remarks: bases 400 ft during the descent. 1373 nm along the route, 32 nm south of the line.
as filed, and in English
```
DTW UA /OV DTW/TM 1123/FL004/TP B717/RM BASES 004 DURD
```
Report
a routine report filed through DTW
Where
over DTW
Time
11:23 UTC
Height
at 400 ft
Aircraft
B717
Remarks
bases 400 ft during the descent
B350 at 2,000 ft, 5 nm southwest, 5:22 am MDT (11:22 UTC): a routine report with nothing remarked on. 1373 nm along the route, 5 nm southwest of the line.
as filed, and in English
```
PTK UA /OV PTK090005/TM 1122/FL020/TP B350/WX FV10SM
```
Report
a routine report filed through PTK
Where
5 nm east (090°) of PTK
Time
11:22 UTC
Height
at 2,000 ft
Aircraft
B350
Weather
flight visibility 10 miles
B739 at 9,000 ft, 8 nm southwest, 4:33 am MDT (10:33 UTC): no turbulence, no icing, clear from 9,000 ft to 60,000 ft, wind 295° at 13 knots, remarks: during the descent. 1383 nm along the route, 8 nm southwest of the line.
as filed, and in English
```
DTW UA /OV DXO033026/TM 1033/FL090/TP B739/SK SKC/WV 29513KTS/TB NEG/IC NEG/RM DURD
```
Report
a routine report filed through DTW
Where
26 nm northeast (033°) of DXO
Time
10:33 UTC
Height
at 9,000 ft
Aircraft
B739
Sky
clear
Wind
from 295° at 13 knots
Turbulence
none
Icing
none
Remarks
during the descent
UAL2759 at 35,000 ft, 37 nm south, 5:14 am MDT (11:14 UTC): no turbulence, wind 313° at 72 knots. 1442 nm along the route, 37 nm south of the line.
as filed, and in English
```
ARP UAL2759 4155N 08149W 1114 F350 313/072KT TB SMTH IC
```
Report
a routine report filed through ARP
AC90 at 2,000 ft, 15 nm south, 5:05 am MDT (11:05 UTC): overcast from 2,000 ft to 4,000 ft. 1512 nm along the route, 15 nm south of the line.
as filed, and in English
```
ERI UA /OV JUNOG/TM 1105/FL020/TP AC90/SK OVC020-TOP040
```
Report
a routine report filed through ERI
Where
junog
Time
11:05 UTC
Height
at 2,000 ft
Aircraft
AC90
Sky
overcast from 2,000 ft, tops 4,000 ft
AC90 at 2,000 ft, 13 nm south, 5:05 am MDT (11:05 UTC): remarks: bases reported at at 2,000 ft. 1512 nm along the route, 13 nm south of the line.
as filed, and in English
```
ERI UA /OV KERI/TM 1105/FL020/TP AC90/RM BASES REPORTED AT 020
```
Report
a routine report filed through ERI
Where
over KERI
Time
11:05 UTC
Height
at 2,000 ft
Aircraft
AC90
Remarks
bases reported at at 2,000 ft

16 more routine reports are on the map.

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 14 forecast points nearest it (PIH, LND, RAP, PIR, FSD, MCW, LSE, GRB, MKG, CLE, BUF, PSB, AVP, JFK). 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	260° at 15 kt	−16 kt		136 kt	13 h 19 min	9:40 pm EDT (01:40 UTC)
5,500 ft	270° at 11 kt	−12 kt	15 °C	132 kt	13 h 43 min	10:04 pm EDT (02:04 UTC)
7,500 ft	260° at 11 kt	−12 kt	11 °C	132 kt	13 h 43 min	10:04 pm EDT (02:04 UTC)
9,500 ft	250° at 13 kt	−14 kt	7 °C	134 kt	13 h 30 min	9:51 pm EDT (01:51 UTC)
11,500 ft	250° at 17 kt	−18 kt	4 °C	138 kt	13 h 07 min	9:28 pm EDT (01:28 UTC)
13,500 ft	250° at 19 kt	−20 kt	0 °C	140 kt	12 h 56 min	9:17 pm EDT (01:17 UTC)
15,500 ft	250° at 20 kt	−22 kt	-5 °C	142 kt	12 h 45 min	9:06 pm EDT (01:06 UTC)
17,500 ft	250° at 22 kt	−23 kt	-10 °C	143 kt	12 h 39 min	9:00 pm EDT (01:00 UTC)
18,000 ft FL180	250° at 22 kt	−23 kt	-11 °C	143 kt	12 h 39 min	9:00 pm EDT (01:00 UTC)
24,000 ft FL240	250° at 26 kt	−28 kt	-22 °C	148 kt	12 h 14 min	8:35 pm EDT (00:35 UTC)
30,000 ft FL300	260° at 32 kt	−35 kt	-35 °C	155 kt	11 h 41 min	8:02 pm EDT (00:02 UTC)
34,000 ft FL340	260° at 38 kt	−41 kt	-40 °C	161 kt	11 h 15 min	7:36 pm EDT (23:36 UTC)
39,000 ft FL390	270° at 45 kt	−48 kt	-48 °C	168 kt	10 h 46 min	7:07 pm EDT (23:07 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
PIH	used from 0 nm out; 63 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°
LND	used from 149 nm out; 83 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°
RAP	used from 398 nm out; 89 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°
PIR	used from 547 nm out; 70 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°
FSD	used from 696 nm out; 59 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°
MCW	used from 845 nm out; 65 nm from the line	250/36	250/24 19°	240/26 11°	250/30 5°	270/22 -9°	260/30 -21°	260/31 -36°	280/53 -38°	280/66 -48°
LSE	used from 995 nm out; 23 nm from the line	250/25	240/21 17°	240/28 11°	250/28 5°	280/24 -10°	280/31 -21°	260/35 -37°	270/45 -43°	280/59 -47°
GRB	used from 1094 nm out; 78 nm from the line	250/32	250/22 17°	240/18 8°	280/21 6°	280/34 -11°	280/35 -21°	280/39 -37°	270/52 -45°	290/60 -49°
MKG	used from 1144 nm out; 70 nm from the line	260/28	260/18 15°	250/16 9°	260/22 4°	280/31 -9°	270/35 -21°	270/44 -35°	270/42 -45°	290/61 -51°
CLE	used from 1343 nm out; 105 nm from the line	310/7	350/20 14°	340/16 9°	320/21 2°	320/32 -8°	330/34 -20°	330/45 -36°	320/60 -45°	320/64 -51°
BUF	used from 1492 nm out; 70 nm from the line	300/11	330/15 11°	340/26 8°	330/28 2°	340/31 -10°	340/32 -21°	340/52 -37°	340/59 -46°	330/66 -53°
PSB	used from 1591 nm out; 62 nm from the line		020/21 12°	360/28 7°	360/29 1°	350/33 -10°	350/42 -22°	350/49 -37°	340/63 -43°	350/39 -52°
AVP	used from 1641 nm out; 53 nm from the line	010/20	020/24 11°	360/19 8°	350/23 2°	320/24 -11°	330/25 -22°	330/27 -37°	310/28 -42°	290/30 -50°
JFK	used from 1790 nm out; 29 nm from the line	020/25	290/9 12°	300/12 7°	320/14 3°	290/17 -10°	240/27 -21°	240/44 -36°	240/53 -41°	240/51 -50°

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
TWF Twin Falls, ID	departure	marginal VFR Sky: a broken layer at 1,200 feet, overcast at 3,100 feet	from the west (260°) at 7 knots	10+ mi	1,200 ft	4,153 ft	6:03 am MDT (12:03 UTC)
PIH Pocatello, ID	90 nm out, 10 nm northwest of the line, tower	IFR Sky: a broken layer at 500 feet, overcast at 1,300 feet Weather: light snow, mist	from the southwest (220°) at 14 knots	4 mi	500 ft	4,451 ft	12:15 UTC
RIW Riverton, WY	269 nm out, 9 nm south of the line	marginal VFR Sky: overcast at 1,200 feet	from the north-northeast (020°) at 9 knots	10+ mi	1,200 ft	5,516 ft	11:53 UTC
HSR Hot Springs, SD	487 nm out, 12 nm south of the line	no report just now				3,150 ft
ICR Winner, SD	647 nm out, 17 nm south of the line	low IFR Sky: overcast at 200 feet Weather: light rain, mist	from the north (360°) at 9 knots	1.75 mi	200 ft	2,032 ft	12:05 UTC
FSD Sioux Falls, SD	776 nm out, 8 nm southeast 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
RST Rochester, MN	965 nm out, 21 nm north of the line, tower	VFR	from the south (180°) at 10 knots	8 mi	none	1,317 ft	11:54 UTC
MKG Muskegon, MI	1243 nm out, 6 nm northwest of the line, tower	VFR Sky: a broken layer at 25,000 feet	from the south (190°) at 10 knots	10+ mi	25,000 ft	628 ft	11:55 UTC
PTK Pontiac, MI	1363 nm out, 7 nm south of the line, tower	marginal VFR Sky: scattered clouds at 500 feet, a broken layer at 25,000 feet Weather: mist	from the south-southwest (210°) at 4 knots	4 mi	25,000 ft	980 ft	11:53 UTC
ERI Erie, PA	1512 nm out, 13 nm south of the line, tower	marginal VFR Sky: overcast at 3,000 feet	variable at 4 knots	10+ mi	3,000 ft	732 ft	00:51 UTC
AVP Wilkes-Barre/Scranton, PA	1721 nm out, 9 nm southwest of the line, tower	marginal VFR Sky: overcast at 1,100 feet	from the north (010°) at 8 knots, gusting to 14	10+ mi	1,100 ft	961 ft	11:54 UTC
HPN White Plains, NY	destination	IFR Sky: overcast at 600 feet	from the north-northwest (330°) at 10 knots	10+ mi	600 ft	439 ft	7:56 am EDT (11:56 UTC)

The highest airport on this list sits at 5,516 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At HPN when you get there the forecast at the estimated arrival, 7:07 pm EDT (23:07 UTC)

Wind from the north-northwest at 9 knots, visibility more than 6 miles, a few clouds at 2,500 feet, scattered clouds at 5,000 feet VFR

The whole forecast for HPN

From Mon 8:00 am EDT (12:00 UTC): wind from the north-northwest at 9 knots, visibility more than 6 miles, a broken layer at 1,500 feet
At times between Mon 8:00 am EDT (12:00 UTC) and 10:00 am EDT (14:00 UTC): a broken layer at 700 feet
From Mon 1:00 pm EDT (17:00 UTC): wind from the north-northwest at 9 knots, visibility more than 6 miles, a few clouds at 2,500 feet, scattered clouds at 5,000 feet
From Mon 10:00 pm EDT (02:00 UTC): wind light and variable, visibility more than 6 miles, a few clouds at 5,000 feet, a few clouds at 15,000 feet

The forecast for TWF, the departure

From Mon 6:00 am MDT (12:00 UTC): wind from the southwest at 7 knots, visibility 6 miles, light rain, mist, scattered clouds at 1,500 feet, overcast at 2,500 feet
From Mon 10:00 am MDT (16:00 UTC): wind from the west at 7 knots, visibility 6 miles, light rain showers, mist, scattered clouds at 1,500 feet, a broken layer at 3,500 feet
From Mon 12:00 pm MDT (18:00 UTC): wind from the west-northwest at 6 knots, visibility more than 6 miles, showers nearby, scattered clouds at 4,000 feet, overcast at 8,000 feet
From Mon 8:00 pm MDT (02:00 UTC): wind from the west-southwest at 8 knots, visibility more than 6 miles, showers nearby, overcast at 4,000 feet
From Tue 1:00 am MDT (07:00 UTC): wind from the west-southwest at 11 knots, gusting to 20, visibility 6 miles, light rain showers, mist, scattered clouds at 1,500 feet, overcast at 3,500 feet

Temporary flight restrictions on the line or within 25 nm of it

5/2811 NEW YORK, NY, Monday, October 20, 2025 through Tuesday, October 20, 2026 Local 20 nm from the route, at the destination end · security · until 20 October · ZNY

Daylight

Sunset at TWF 6:59 pm MDT (00:59 UTC), at HPN 6:19 pm EDT (22:19 UTC) (civil twilight ends 6:46 pm EDT (22:46 UTC)). At 120 knots the arrival at HPN is after sunset there (6:19 pm EDT (22:19 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 Pacific Northwest · loop National Weather Service

Radar now, the northern Rockies · loop National Weather Service

Radar now, the upper Mississippi valley · 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: Joslin Fld/Magic Valley Regional, Westchester County.