Plan a flight · Mon 1:07 am PDT (08:07 UTC)

Napa County to Lehigh Valley International APC → ABE

2,151 nautical miles (2,476 statute miles) east on a straight line, true course 071°, about 056° magnetic at the departure end (variation 15E). At 120 knots that is 12 h 53 min at the quickest height in today's winds (39,000 ft, a 47-knot tailwind), arriving about 5:00 pm EDT (21:00 UTC). Right now APC is marginal VFR, wind from the north (350°) at 6 knots; ABE is marginal VFR, wind calm. 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

AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the first 159 nm of the route.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 219 to 747 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 249 to 757 nm out.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 378 to 867 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 42,000 ft. Over the route from 528 to 876 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 667 to 857 nm out.
AIRMET TANGO 5W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Near the route, 737 nm along 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). Near the route, 956 nm along the route.
AIRMET TANGO 3W: 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 996 to 1514 nm out.
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 448 nm of the route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1952 to 2121 nm out.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the last 30 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 APC.

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

B737 at 18,000 ft, 49 nm south, 12:24 am PDT (07:24 UTC): moderate turbulence, remarks: FL180-130. 807 nm along the route, 49 nm south of the line.
as filed, and in English
```
DEN UA /OV DEN330050/TM 0724/FL180/TP B737/TB MOD/RM FL180-130
```
Report
a routine report filed through DEN
Where
50 nm northwest (330°) of DEN
Time
07:24 UTC
Height
at 18,000 ft
Aircraft
B737
Turbulence
moderate
Remarks
FL180-130
C560 at 13,000 ft, 37 nm south, 11:38 pm PDT (06:38 UTC): moderate turbulence, overcast above 19,000 ft, heavy rain, remarks: during the descent. At the destination end, 37 nm south of the line.
as filed, and in English
```
PHL UA /OV 20 NW PHL/TM 0638/FL130 /TP C560/SK OVC190/WX +RA/TB MOD/RM DURD
```
Report
a routine report filed through PHL
Where
20 northwest phl
Time
06:38 UTC
Height
at 13,000 ft
Aircraft
C560
Sky
overcast from 19,000 ft
Weather
heavy rain
Turbulence
moderate
Remarks
during the descent
B738 at 1,700 ft, 6 nm southwest, 11:20 pm PDT (06:20 UTC): overcast from 1,700 ft to 2,000 ft, remarks: during the descent. 1773 nm along the route, 6 nm southwest of the line.
as filed, and in English
```
TOL UA /OV KTOL/TM 0620/FL017/TP B738/SK OVC017-TOP020/RM DURD
```
Report
a routine report filed through TOL
Where
over KTOL
Time
06:20 UTC
Height
at 1,700 ft
Aircraft
B738
Sky
overcast from 1,700 ft, tops 2,000 ft
Remarks
during the descent
B738 at 1,800 ft, 6 nm southwest, 10:18 pm PDT (05:18 UTC): overcast from 1,800 ft to 2,700 ft, remarks: during the climb. 1773 nm along the route, 6 nm southwest of the line.
as filed, and in English
```
TOL UA /OV KTOL/TM 0518/FL018/TP B738/SK OVC018-TOP027/RM DURC
```
Report
a routine report filed through TOL
Where
over KTOL
Time
05:18 UTC
Height
at 1,800 ft
Aircraft
B738
Sky
overcast from 1,800 ft, tops 2,700 ft
Remarks
during the climb
A333 descending, 36 nm north, 10:44 pm PDT (05:44 UTC): a routine report with nothing remarked on. 1783 nm along the route, 36 nm north of the line.
as filed, and in English
```
DTW UA /OV DTW/TM 0544/FLDURD/TP A333/SK TOPS 025
```
Report
a routine report filed through DTW
Where
over DTW
Time
05:44 UTC
Height
during the descent
Aircraft
A333
Sky
tops 2,500 ft

Winds aloft along the route, and the time en route the forecast for use 02:00–09:00 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 18 forecast points nearest it (SAC, RNO, BAM, ELY, SLC, RKS, DEN, BFF, ONL, OMA, DSM, DBQ, JOT, FWA, CLE, AGC, PSB, AVP). A plus sign is a headwind, a minus sign a tailwind.

Height	Average wind	Head- or tailwind	Temperature	Ground speed	Time en route	Arrival
5,500 ft	240° at 11 kt	−11 kt	17 °C	131 kt	16 h 25 min	8:32 pm EDT (00:32 UTC)
7,500 ft	240° at 13 kt	−13 kt	10 °C	133 kt	16 h 10 min	8:17 pm EDT (00:17 UTC)
9,500 ft	250° at 13 kt	−14 kt	7 °C	134 kt	16 h 03 min	8:10 pm EDT (00:10 UTC)
11,500 ft	240° at 15 kt	−15 kt	3 °C	135 kt	15 h 56 min	8:03 pm EDT (00:03 UTC)
13,500 ft	240° at 17 kt	−17 kt	-1 °C	137 kt	15 h 42 min	7:49 pm EDT (23:49 UTC)
15,500 ft	240° at 19 kt	−19 kt	-5 °C	139 kt	15 h 28 min	7:35 pm EDT (23:35 UTC)
17,500 ft	240° at 21 kt	−21 kt	-10 °C	141 kt	15 h 15 min	7:22 pm EDT (23:22 UTC)
18,000 ft FL180	240° at 21 kt	−22 kt	-11 °C	142 kt	15 h 09 min	7:16 pm EDT (23:16 UTC)
24,000 ft FL240	240° at 25 kt	−25 kt	-22 °C	145 kt	14 h 50 min	6:57 pm EDT (22:57 UTC)
30,000 ft FL300	250° at 33 kt	−34 kt	-32 °C	154 kt	13 h 58 min	6:05 pm EDT (22:05 UTC)
34,000 ft FL340	260° at 42 kt	−45 kt	-38 °C	165 kt	13 h 02 min	5:09 pm EDT (21:09 UTC)
39,000 ft FL390	260° at 44 kt	−47 kt	-47 °C	167 kt	12 h 53 min	5:00 pm EDT (21:00 UTC)

Based on data from the 12th at 00:00 UTC; valid on the 12th at 06:00 UTC for use 02:00 to 09:00 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
SAC	used from 0 nm out; 17 nm from the line	110/6	L/V 4°	010/11 -2°	350/11 -7°	340/24 -16°	360/44 -23°	330/24 -30°	270/21 -35°	230/23 -43°
RNO	used from 100 nm out; 38 nm from the line		010/9	320/10 -2°	210/23 -9°	210/34 -19°	220/36 -25°	230/31 -29°	230/41 -33°	230/38 -42°
BAM	used from 199 nm out; 85 nm from the line			310/7 0°	270/19 -7°	200/38 -17°	190/49 -28°	220/69 -29°	220/63 -33°	230/48 -41°
ELY	used from 299 nm out; 47 nm from the line			200/39 3°	210/27 -2°	210/45 -15°	220/56 -24°	210/60 -28°	210/63 -34°	220/61 -43°
SLC	used from 398 nm out; 80 nm from the line		200/5	230/8 2°	220/20 -2°	210/40 -12°	190/53 -25°	210/62 -30°	220/69 -34°	220/64 -43°
RKS	used from 598 nm out; 43 nm from the line			200/41	220/44 1°	220/35 -11°	220/46 -24°	210/53 -27°	220/62 -35°	230/61 -44°
DEN	used from 747 nm out; 106 nm from the line			240/21 14°	250/44 6°	220/49 -8°	220/49 -21°	230/54 -30°	240/57 -35°	240/49 -45°
BFF	used from 797 nm out; 66 nm from the line		180/28	220/33 15°	210/31 7°	230/32 -9°	220/41 -21°	220/40 -33°	240/47 -36°	250/54 -46°
ONL	used from 996 nm out; 91 nm from the line		210/31 20°	230/27 13°	230/18 7°	220/19 -8°	240/26 -20°	250/44 -35°	270/52 -39°	260/57 -47°
OMA	used from 1145 nm out; 70 nm from the line	220/47	240/33 19°	250/18 11°	230/17 6°	260/29 -8°	250/33 -19°	250/51 -33°	260/61 -40°	270/62 -49°
DSM	used from 1295 nm out; 31 nm from the line	230/40	250/33 17°	250/18 12°	240/17 5°	260/28 -8°	270/34 -19°	260/41 -33°	260/55 -41°	270/62 -51°
DBQ	used from 1394 nm out; 46 nm from the line	230/33	250/30 16°	280/15 9°	260/15 5°	260/21 -7°	260/24 -20°	250/37 -33°	270/42 -43°	280/63 -52°
JOT	used from 1494 nm out; 60 nm from the line	250/23	270/22 15°	250/16 10°	240/9 4°	280/22 -7°	280/29 -19°	300/29 -34°	290/50 -43°	300/64 -52°
FWA	used from 1643 nm out; 63 nm from the line	300/17	320/20 16°	330/20 10°	340/15 3°	310/27 -8°	320/37 -20°	330/52 -36°	330/65 -43°	330/60 -50°
CLE	used from 1793 nm out; 40 nm from the line	340/7	010/16 13°	350/18 8°	350/20 3°	340/31 -10°	340/46 -21°	340/54 -37°	330/62 -44°	340/65 -49°
AGC	used from 1942 nm out; 56 nm from the line	350/14	330/20 11°	340/18 8°	330/17 3°	340/22 -11°	340/31 -22°	330/33 -36°	300/34 -41°	300/35 -47°
PSB	used from 1992 nm out; 16 nm from the line		360/13 13°	330/14 7°	300/11 3°	290/12 -11°	240/23 -23°	270/25 -36°	250/34 -40°	250/45 -48°
AVP	used from 2092 nm out; 40 nm from the line	150/5	350/13 12°	270/20 8°	260/17 4°	260/25 -11°	240/31 -22°	240/54 -35°	230/61 -41°	240/55 -49°

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
APC Napa, CA	departure	marginal VFR Sky: a broken layer at 2,100 feet, overcast at 10,000 feet	from the north (350°) at 6 knots	10+ mi	2,100 ft	35 ft	12:54 am PDT (07:54 UTC)
SAC Sacramento, CA	40 nm out, 5 nm north of the line, tower	VFR Sky: a broken layer at 10,000 feet	from the southeast (140°) at 5 knots	10+ mi	10,000 ft	23 ft	07:53 UTC
TMT Austin, NV	249 nm out, 1 nm north of the line	VFR Sky: scattered clouds at 4,300 feet, a broken layer at 6,500 feet, overcast at 9,000 feet	from the east-northeast (070°) at 3 knots	10+ mi	6,500 ft	5,735 ft	07:55 UTC
PVU Provo, UT	508 nm out, 17 nm south of the line, tower	VFR Sky: scattered clouds at 5,500 feet, a broken layer at 7,500 feet, overcast at 12,000 feet	from the east (090°) at 7 knots	10+ mi	7,500 ft	4,496 ft	07:56 UTC
CYS Cheyenne, WY	827 nm out, 17 nm south of the line, tower	VFR	from the west (270°) at 20 knots, gusting to 37	10+ mi	none	6,159 ft	07:53 UTC
TIF Thedford, NE	1016 nm out, 11 nm north of the line	low IFR Sky: overcast at 300 feet	from the east (100°) at 7 knots	10+ mi	300 ft	2,925 ft	07:55 UTC
CIN Carroll, IA	1275 nm out, 3 nm northeast of the line	VFR	from the south-southwest (200°) at 10 knots, gusting to 15	10+ mi	none	1,203 ft	07:55 UTC
CID Cedar Rapids, IA	1414 nm out, 8 nm south of the line, tower	VFR	from the south (180°) at 6 knots	10+ mi	none	869 ft	02:52 UTC
ORD Chicago, IL	1584 nm out, 4 nm north of the line, tower	VFR Sky: a broken layer at 30,000 feet	from the south-southwest (210°) at 8 knots	10+ mi	30,000 ft	680 ft	07:51 UTC
BKL Cleveland, OH	1862 nm out, 4 nm northeast of the line, tower	marginal VFR Sky: a few clouds at 1,000 feet, scattered clouds at 1,300 feet, overcast at 2,100 feet	from the west-northwest (300°) at 9 knots	10+ mi	2,100 ft	583 ft	07:53 UTC
UNV State College, PA	2042 nm out, 9 nm south of the line, tower	low IFR Sky: overcast at 1,100 feet Weather: mist	from the south (170°) at 1 knots	0.75 mi	1,100 ft	1,231 ft	07:55 UTC
ABE Allentown, PA	destination	marginal VFR Sky: overcast at 1,200 feet	calm	10+ mi	1,200 ft	393 ft	3:51 am EDT (07:51 UTC)

The highest airport on this list sits at 6,159 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At ABE when you get there the forecast at the estimated arrival, 5:00 pm EDT (21:00 UTC)

Wind from the north-northwest at 10 knots, visibility more than 6 miles, scattered clouds at 3,500 feet VFR

The whole forecast for ABE

From Mon 2:00 am EDT (06:00 UTC): wind from the northeast at 8 knots, visibility 6 miles, mist, showers nearby, overcast at 1,000 feet
At times between Mon 2:00 am EDT (06:00 UTC) and 5:00 am EDT (09:00 UTC): visibility 5 miles, light rain showers, mist, a broken layer at 900 feet
From Mon 7:00 am EDT (11:00 UTC): wind from the north at 6 knots, visibility 6 miles, mist, a broken layer at 2,000 feet
From Mon 11:00 am EDT (15:00 UTC): wind from the north-northwest at 10 knots, visibility more than 6 miles, scattered clouds at 3,500 feet
From Mon 6:00 pm EDT (22:00 UTC): wind from the west-northwest at 8 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
From Mon 9:00 pm EDT (01:00 UTC): wind light and variable, visibility more than 6 miles, a few clouds at 25,000 feet

The forecast for APC, the departure

From Sun 11:00 pm PDT (06:00 UTC): wind from the northeast at 3 knots, visibility more than 6 miles, clear skies
From Mon 12:00 pm PDT (19:00 UTC): wind from the southwest at 8 knots, visibility more than 6 miles, clear skies

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

6/8587 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local on the route, 1882 nm along the route · a VIP movement · today · ZOB
6/8888 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local 3 nm from the route, 1912 nm along the route · security · today · ZOB
6/8829 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local on the route, 1912 nm along the route · a VIP movement · today · ZOB

Daylight

Sunset at APC 6:34 pm PDT (01:34 UTC), at ABE 6:26 pm EDT (22:26 UTC) (civil twilight ends 6:53 pm EDT (22:53 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 Southwest · loop National Weather Service

Radar now, the southern Rockies · loop National Weather Service

Radar now, the northern Rockies · 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: Napa County, Lehigh Valley International.