Mercedita Airport to Jacksonville International PSE → JAX
1,115 nautical miles (1,283 statute miles) northwest on a straight line, true course 315°, about 326° magnetic at the departure end (variation 11W). At 120 knots that is 9 h 32 min at the quickest height in today's winds (4,500 ft, a 3-knot headwind), arriving about 4:14 pm EDT (20:14 UTC). 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 E33E: thunderstorms (a convective SIGMET) up to 45,000 ft, moving from the west at 20 knots, until 7:55 am AST (11:55 UTC). Over the route from 886 to 935 nm out.
as issued
WSUS31 KKCI 120955 MKCE WST 120955 CONVECTIVE SIGMET 33E VALID UNTIL 1155Z FL CSTL WTRS FROM 220SE CHS-230ENE TRV-90NE PBI-30NE TRV-220SE CHS AREA TS MOV FROM 26020KT. TOPS TO FL450. REF INTL SIGMET LIMA SERIES.
- AIRMET TANGO 2W: moderate turbulence above 18,000 ft from 30,000 ft to 41,000 ft. Over the last 100 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 PSE.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
Not fetched just now.
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 3 forecast points nearest it (MIA, MLB, JAX). 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 | 280° at 4 kt | +3 kt | 117 kt | 9 h 32 min | 4:14 pm EDT (20:14 UTC) | |
| 6,500 ft | 280° at 4 kt | +3 kt | 16 °C | 117 kt | 9 h 32 min | 4:14 pm EDT (20:14 UTC) |
| 8,500 ft | 290° at 4 kt | +4 kt | 14 °C | 116 kt | 9 h 37 min | 4:19 pm EDT (20:19 UTC) |
| 10,500 ft | 290° at 4 kt | +4 kt | 10 °C | 116 kt | 9 h 37 min | 4:19 pm EDT (20:19 UTC) |
| 12,500 ft | 280° at 5 kt | +4 kt | 7 °C | 116 kt | 9 h 37 min | 4:19 pm EDT (20:19 UTC) |
| 14,500 ft | 270° at 7 kt | +5 kt | 2 °C | 115 kt | 9 h 42 min | 4:24 pm EDT (20:24 UTC) |
| 16,500 ft | 270° at 8 kt | +6 kt | -2 °C | 114 kt | 9 h 47 min | 4:29 pm EDT (20:29 UTC) |
| 18,000 ft FL180 | 270° at 10 kt | +7 kt | -6 °C | 113 kt | 9 h 52 min | 4:34 pm EDT (20:34 UTC) |
| 24,000 ft FL240 | 260° at 11 kt | +7 kt | -17 °C | 113 kt | 9 h 52 min | 4:34 pm EDT (20:34 UTC) |
| 30,000 ft FL300 | 280° at 16 kt | +13 kt | -32 °C | 107 kt | 10 h 25 min | 5:07 pm EDT (21:07 UTC) |
| 34,000 ft FL340 | 270° at 23 kt | +18 kt | -41 °C | 102 kt | 10 h 56 min | 5:38 pm EDT (21:38 UTC) |
| 39,000 ft FL390 | 270° at 20 kt | +16 kt | -52 °C | 104 kt | 10 h 43 min | 5:25 pm EDT (21:25 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| MIA | used from 0 nm out; 871 nm from the line | L/V | L/V 17° | L/V 13° | L/V 8° | 270/6 -6° | 250/9 -17° | 290/17 -32° | 280/25 -41° | 280/21 -52° |
| MLB | used from 796 nm out; 178 nm from the line | 290/10 | 260/15 18° | 290/12 13° | 280/13 8° | 250/20 -7° | 260/18 -18° | 240/17 -32° | 250/20 -41° | 250/22 -52° |
| JAX | used from 1045 nm out; 45 nm from the line | 310/22 | 310/19 16° | 300/22 14° | 290/25 8° | 300/25 -7° | 300/24 -18° | 270/20 -33° | 260/25 -41° | 290/17 -51° |
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 |
|---|---|---|---|---|---|---|---|
| PSE Ponce, PR | departure | no report just now | 36 ft | ||||
| BQN Aguadilla, PR | 40 nm out, 4 nm west of the line, tower | no report just now | 237 ft | ||||
| SGJ St Augustine, FL | 1085 nm out, 14 nm south of the line, tower | no report just now | 9 ft | ||||
| JAX Jacksonville, FL | destination | no report just now | 29 ft |
The highest airport on this list sits at 237 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At JAX when you get there the forecast at the estimated arrival, 4:14 pm EDT (20:14 UTC)
JAX has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 6/8901 Cape Canaveral, FL, Thursday, October 15, 2026 Local 22 nm from the route, 995 nm along the route · a rocket launch or re-entry · starts Thursday 15 October · ZJX
- 6/8900 Cape Canaveral, FL, Wednesday, October 14, 2026 Local 22 nm from the route, 995 nm along the route · a rocket launch or re-entry · starts Wednesday 14 October · ZMA
- 6/8896 Cape Canaveral, FL, Tuesday, October 13, 2026 Local 22 nm from the route, 995 nm along the route · a rocket launch or re-entry · starts tomorrow · ZJX
- 6/8897 Cape Canaveral, FL, Wednesday, October 14, 2026 Local 22 nm from the route, 995 nm along the route · a rocket launch or re-entry · starts Wednesday 14 October · ZJX
- 6/8898 Cape Canaveral, FL, Thursday, October 15, 2026 Local 22 nm from the route, 995 nm along the route · a rocket launch or re-entry · starts Thursday 15 October · ZMA
- 6/8899 Cape Canaveral, FL, Tuesday, October 13, 2026 Local 22 nm from the route, 995 nm along the route · a rocket launch or re-entry · starts tomorrow · ZMA
- 6/8389 Jacksonville, FL, Thursday, October 15, 2026 through Sunday, October 18, 2026 UTC 7 nm from the route, at the destination end · air shows/sports · starts Thursday 15 October · ZJX
- 6/8902 MAYPORT, FL, Tuesday, October 13, 2026 through Saturday, October 17, 2026 Local 2 nm from the route, at the destination end · security · starts tomorrow · ZJX
Daylight
Sunset at PSE 6:06 pm AST (22:06 UTC), at JAX 6:59 pm EDT (22:59 UTC) (civil twilight ends 7:23 pm EDT (23:23 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: Mercedita Airport, Jacksonville International.