Plan a flight · Mon 11:21 am EDT (15:21 UTC)

Morristown Municipal to St. Louis Lambert International MMU → STL

745 nautical miles (858 statute miles) west on a straight line, true course 266°, about 279° magnetic at the departure end (variation 13W). At 120 knots that is 7 h 06 min at the quickest height in today's winds (4,500 ft, a 15-knot headwind), arriving about 5:27 pm CDT (22:27 UTC). Right now MMU is VFR, wind from the north (010°) at 9 knots; STL is VFR, wind from the southwest (220°) at 14 knots, gusting to 21. 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 3W: moderate turbulence above 18,000 ft from 24,000 ft to 40,000 ft. Over the first 159 nm of the route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the route from 109 to 288 nm out.
AIRMET SIERRA 1E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, mist). Over the route from 169 to 457 nm out.
AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 6,000 ft. Near the route, 169 nm along 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 MMU.

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

C525 at 1,600 ft, 50 nm northeast, 11:17 am EDT (15:17 UTC): scattered clouds above 1,500 ft. At the departure end, 50 nm northeast of the line.
as filed, and in English
```
DXR UA /OV KDXR270005/TM 1517/FL016/TP C525/SK SCT015
```
Report
a routine report filed through DXR
Where
5 nm west (270°) of KDXR
Time
15:17 UTC
Height
at 1,600 ft
Aircraft
C525
Sky
scattered clouds from 1,500 ft
C750 at 1,600 ft, 45 nm north, 10:58 am EDT (14:58 UTC): a routine report with nothing remarked on. At the departure end, 45 nm north of the line.
as filed, and in English
```
SWF UA /OV DEPT END RWY 34/TM 1458/FL016/TP C750
```
Report
a routine report filed through SWF
Where
dept end runway 34
Time
14:58 UTC
Height
at 1,600 ft
Aircraft
C750
A220 at 4,000 ft, 39 nm east, 10:10 am EDT (14:10 UTC): a broken layer from 2,000 ft to 3,400 ft, remarks: during the climb 4L. At the departure end, 39 nm east of the line.
as filed, and in English
```
JFK UA /OV JFK100008/TM 1410/FL040/TP A220/SK BKN020-TOP034/RM DURC 4L
```
Report
a routine report filed through JFK
Where
8 nm east (100°) of JFK
Time
14:10 UTC
Height
at 4,000 ft
Aircraft
A220
Sky
a broken layer from 2,000 ft, tops 3,400 ft
Remarks
during the climb 4L
SR22 at 3,000 ft, 45 nm northeast, 9:14 am EDT (13:14 UTC): remarks: instrument conditions occasional ground contact. At the departure end, 45 nm northeast of the line.
as filed, and in English
```
DXR UA /OV KDXR260010/TM 1314/FL030/TP SR22/RM IMC OCCASIONAL GROUND CONTACT
```
Report
a routine report filed through DXR
Where
10 nm west (260°) of KDXR
Time
13:14 UTC
Height
at 3,000 ft
Aircraft
SR22
Remarks
instrument conditions occasional ground contact
E175 descending, 25 nm east, 9:04 am EDT (13:04 UTC): remarks: base 1200 feet. At the departure end, 25 nm east of the line.
as filed, and in English
```
LGA UA /OV FINAL RWY 04/TM 1304/FLDURD/TP E175/RM BASE 1200 FEET
```
Report
a routine report filed through LGA
Where
final runway 04
Time
13:04 UTC
Height
during the descent
Aircraft
E175
Remarks
base 1200 feet
C680 descending, 36 nm northeast, 9:00 am EDT (13:00 UTC): remarks: bases at at 1,000 ft. At the departure end, 36 nm northeast of the line.
as filed, and in English
```
HPN UA /OV KHPN/TM 1300/FLDURD/TP C680/RM BASES AT 010
```
Report
a routine report filed through HPN
Where
over KHPN
Time
13:00 UTC
Height
during the descent
Aircraft
C680
Remarks
bases at at 1,000 ft
A320 climbing, 36 nm east, 9:00 am EDT (13:00 UTC): a routine report with nothing remarked on. At the departure end, 36 nm east of the line.
as filed, and in English
```
JFK UA /OV JFK100005/TM 1300/FLDURC/TP A320/SK 008-021
```
Report
a routine report filed through JFK
Where
5 nm east (100°) of JFK
Time
13:00 UTC
Height
during the climb
Aircraft
A320
Sky
from 800 ft to 2,100 ft
A320 at 900 ft, 30 nm southeast, 8:57 am EDT (12:57 UTC): overcast above 900 ft. At the departure end, 30 nm southeast of the line.
as filed, and in English
```
JFK UA /OV KJFK225003/TM 1257/FL009/TP A320/SK OVC009
```
Report
a routine report filed through JFK
Where
3 nm southwest (225°) of KJFK
Time
12:57 UTC
Height
at 900 ft
Aircraft
A320
Sky
overcast from 900 ft
BCS3 at 36,000 ft, 48 nm northeast, 8:50 am EDT (12:50 UTC): light turbulence. At the departure end, 48 nm northeast of the line.
as filed, and in English
```
DXR UA /OV CMK/TM 1250/FL360/TP BCS3/TB INTMT LGT
```
Report
a routine report filed through DXR
Where
over CMK
Time
12:50 UTC
Height
at 36,000 ft
Aircraft
BCS3
Turbulence
intermittent light
C172 at 900 ft, 46 nm east, 8:49 am EDT (12:49 UTC): overcast above 900 ft, remarks: bases reported at 900FT on 2 mile final runway 32. At the departure end, 46 nm east of the line.
as filed, and in English
```
FRG UA /OV FRG/TM 1249/FL009/TP C172/SK OVC 009/RM BASES REPORTED AT 900FT ON 2 MILE FINAL RWY 32
```
Report
a routine report filed through FRG
Where
over FRG
Time
12:49 UTC
Height
at 900 ft
Aircraft
C172
Sky
overcast from 900 ft
Remarks
bases reported at 900FT on 2 mile final runway 32
SR22 at 1,000 ft, 36 nm northeast, 8:47 am EDT (12:47 UTC): remarks: bases reported at 1000FT. At the departure end, 36 nm northeast of the line.
as filed, and in English
```
HPN UA /OV HPN/TM 1247/FL010/TP SR22/RM BASES REPORTED AT 1000FT
```
Report
a routine report filed through HPN
Where
over HPN
Time
12:47 UTC
Height
at 1,000 ft
Aircraft
SR22
Remarks
bases reported at 1000FT
CRJ9 at 900 ft, 30 nm southeast, 8:45 am EDT (12:45 UTC): overcast above 900 ft. At the departure end, 30 nm southeast of the line.
as filed, and in English
```
JFK UA /OV KJFK225003/TM 1245/FL009/TP CRJ9/SK OVC009, TOPS030
```
Report
a routine report filed through JFK
Where
3 nm southwest (225°) of KJFK
Time
12:45 UTC
Height
at 900 ft
Aircraft
CRJ9
Sky
OVC009, TOPS030
CL60 at 1,300 ft, 16 nm east, 8:31 am EDT (12:31 UTC): overcast. At the departure end, 16 nm east of the line.
as filed, and in English
```
TEB UA /OV TEB/TM 1231/FL013/TP CL60/SK OVC
```
Report
a routine report filed through TEB
Where
over TEB
Time
12:31 UTC
Height
at 1,300 ft
Aircraft
CL60
Sky
overcast
B738 at 1,200 ft, 35 nm east, 8:22 am EDT (12:22 UTC): a broken layer above 1,200 ft. At the departure end, 35 nm east of the line.
as filed, and in English
```
JFK UA /OV JFK090005/TM 1222/FL012/TP B738/SK BKN012
```
Report
a routine report filed through JFK
Where
5 nm east (090°) of JFK
Time
12:22 UTC
Height
at 1,200 ft
Aircraft
B738
Sky
a broken layer from 1,200 ft

16 more routine reports are on the map.

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 (AVP, PSB, AGC, CMH, CVG, IND, EVV, SPI, STL). 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	290° at 16 kt	+15 kt	14 °C	105 kt	7 h 06 min	5:27 pm CDT (22:27 UTC)
6,500 ft	290° at 16 kt	+15 kt	13 °C	105 kt	7 h 06 min	5:27 pm CDT (22:27 UTC)
8,500 ft	300° at 18 kt	+15 kt	10 °C	105 kt	7 h 06 min	5:27 pm CDT (22:27 UTC)
10,500 ft	300° at 20 kt	+15 kt	7 °C	105 kt	7 h 06 min	5:27 pm CDT (22:27 UTC)
12,500 ft	310° at 22 kt	+16 kt	3 °C	104 kt	7 h 10 min	5:31 pm CDT (22:31 UTC)
14,500 ft	300° at 24 kt	+18 kt	-1 °C	102 kt	7 h 18 min	5:39 pm CDT (22:39 UTC)
16,500 ft	300° at 25 kt	+20 kt	-4 °C	100 kt	7 h 27 min	5:48 pm CDT (22:48 UTC)
18,000 ft FL180	300° at 26 kt	+21 kt	-7 °C	99 kt	7 h 32 min	5:53 pm CDT (22:53 UTC)
24,000 ft FL240	290° at 34 kt	+30 kt	-20 °C	90 kt	8 h 17 min	6:38 pm CDT (23:38 UTC)
30,000 ft FL300	290° at 43 kt	+37 kt	-35 °C	83 kt	8 h 59 min	7:20 pm CDT (00:20 UTC)
34,000 ft FL340	300° at 52 kt	+43 kt	-42 °C	77 kt	9 h 41 min	8:02 pm CDT (01:02 UTC)
39,000 ft FL390	310° at 56 kt	+40 kt	-49 °C	80 kt	9 h 19 min	7:40 pm CDT (00:40 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
AVP	used from 0 nm out; 49 nm from the line	330/21	340/24 14°	350/27 9°	350/25 3°	330/29 -8°	310/31 -20°	330/41 -36°	330/57 -46°	320/55 -51°
PSB	used from 99 nm out; 46 nm from the line		330/23 14°	340/24 9°	340/25 3°	320/24 -8°	300/29 -20°	310/39 -36°	310/52 -46°	310/56 -50°
AGC	used from 199 nm out; 29 nm from the line	270/15	320/17 14°	320/22 9°	340/23 4°	310/25 -8°	290/30 -19°	280/40 -36°	290/49 -45°	300/53 -49°
CMH	used from 298 nm out; 67 nm from the line	270/15	280/20 14°	280/21 9°	290/26 4°	290/29 -7°	290/38 -20°	280/44 -35°	280/48 -42°	310/61 -48°
CVG	used from 447 nm out; 42 nm from the line	260/20	280/18 15°	270/19 8°	290/30 5°	280/31 -7°	290/37 -19°	280/46 -35°	290/55 -40°	310/57 -48°
IND	used from 497 nm out; 29 nm from the line	260/18	250/20 15°	260/26 9°	290/28 5°	290/30 -7°	280/40 -20°	280/46 -35°	290/53 -38°	300/58 -47°
EVV	used from 596 nm out; 73 nm from the line	270/15	250/15 14°	260/24 11°	270/28 6°	280/30 -7°	280/34 -18°	290/48 -33°	290/59 -38°	300/56 -48°
SPI	used from 646 nm out; 62 nm from the line	230/24	240/21 15°	260/11 12°	280/19 6°	270/23 -8°	280/34 -20°	290/55 -33°	290/62 -37°	290/55 -47°
STL	used from 696 nm out; 25 nm from the line	240/25	240/21 15°	260/21 12°	270/21 7°	280/25 -7°	280/39 -19°	290/65 -31°	290/70 -38°	290/59 -48°

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
MMU Morristown, NJ	departure	VFR Sky: scattered clouds at 1,900 feet, a broken layer at 4,200 feet	from the north (010°) at 9 knots	10+ mi	4,200 ft	186 ft	10:45 am EDT (14:45 UTC)
ABE Allentown, PA	50 nm out, 6 nm southeast of the line, tower	VFR Sky: scattered clouds at 2,200 feet, a broken layer at 4,400 feet	variable at 5 knots	10+ mi	4,400 ft	393 ft	14:51 UTC
ZER Pottsville, PA	89 nm out, 2 nm north of the line	IFR Sky: a broken layer at 900 feet, a broken layer at 2,900 feet	from the northwest (310°) at 8 knots	10+ mi	900 ft	1,729 ft	14:55 UTC
JST Johnstown, PA	199 nm out, 10 nm south of the line, tower	low IFR Sky: overcast at 200 feet Weather: mist	from the west (280°) at 9 knots	3 mi	200 ft	2,284 ft	15:10 UTC
AGC Pittsburgh, PA	248 nm out, 4 nm west of the line, tower	IFR Sky: a broken layer at 700 feet, overcast at 1,300 feet	from the west-southwest (250°) at 4 knots	7 mi	700 ft	1,251 ft	15:14 UTC
VTA Newark, OH	368 nm out, 3 nm southwest of the line	marginal VFR Sky: a broken layer at 1,300 feet	variable at 6 knots	10+ mi	1,300 ft	883 ft	14:54 UTC
CMH Columbus, OH	388 nm out, 3 nm west of the line, tower	marginal VFR Sky: overcast at 1,000 feet	from the south-southwest (210°) at 5 knots	8 mi	1,000 ft	815 ft	14:51 UTC
CEV Connersville, IN	497 nm out, 2 nm northeast of the line	no report just now				866 ft
HUF Terre Haute, IN	596 nm out, 7 nm north of the line, tower	VFR	from the west-southwest (240°) at 7 knots	10+ mi	none	589 ft	14:53 UTC
SIV Sullivan, IN	606 nm out, 11 nm south of the line	no report just now				539 ft
ALN Alton/St Louis, IL	726 nm out, 5 nm northwest of the line, tower	VFR	from the south-southwest (210°) at 10 knots	10+ mi	none	543 ft	14:50 UTC
STL St Louis, MO	destination	VFR	from the southwest (220°) at 14 knots, gusting to 21	10+ mi	none	617 ft	9:51 am CDT (14:51 UTC)

The highest airport on this list sits at 2,284 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At STL when you get there the forecast at the estimated arrival, 5:27 pm CDT (22:27 UTC)

Wind from the southwest at 12 knots, gusting to 20, visibility more than 6 miles, clear skies VFR

The whole forecast for STL

From Mon 10:00 am CDT (15:00 UTC): wind from the southwest at 12 knots, gusting to 20, visibility more than 6 miles, clear skies
From Mon 7:00 pm CDT (00:00 UTC): wind from the south-southwest at 8 knots, visibility more than 6 miles, clear skies

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 19 nm from the route, at the departure end · security · until 20 October · ZNY
6/8829 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local 21 nm from the route, 278 nm along the route · a VIP movement · today · ZOB
6/8587 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local 21 nm from the route, 278 nm along the route · a VIP movement · today · ZOB

Daylight

Sunset at MMU 6:22 pm EDT (22:22 UTC), at STL 6:27 pm CDT (23:27 UTC) (civil twilight ends 6:54 pm CDT (23:54 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 Northeast · loop National Weather Service

Radar now, the central Great Lakes · 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: Morristown Municipal, St. Louis Lambert International.