Luis Munoz Marin International to Raleigh-Durham International SJU → RDU
1,247 nautical miles (1,435 statute miles) northwest on a straight line, true course 330°, about 341° magnetic at the departure end (variation 11W). At 120 knots that is 8 h 43 min at the quickest height in today's winds (34,000 ft, a 23-knot tailwind), arriving about 10:04 am EDT (14:04 UTC). Right now SJU is VFR, wind from the east-southeast (110°) at 4 knots; RDU is VFR, wind from the southwest (230°) at 10 knots, gusting to 20. 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: 921 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 E17E: thunderstorms (a convective SIGMET) up to 44,000 ft, moving from the southwest at 25 knots, until 2:55 am AST (06:55 UTC). Near the route, 1008 nm along the route.
as issued
WSUS31 KKCI 120455 MKCE WST 120455 CONVECTIVE SIGMET 17E VALID UNTIL 0655Z NC VA CSTL WTRS FROM 160SE SIE-190SE ECG-140SE ILM-70E ORF-160SE SIE AREA TS MOV FROM 24025KT. TOPS TO FL440. REF INTL SIGMET LIMA SERIES.
- AIRMET TANGO 1W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Over the route from 1028 to 1048 nm out.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Near the route, at the destination end.
- AIRMET TANGO 5W: moderate turbulence below 18,000 ft (due to mountain wave) up to 10,000 ft. Near the route, at the destination end.
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 SJU.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
No pilot reports within 50 nautical miles of the line in the last three hours.
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 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 4 forecast points nearest it (MIA, MLB, ILM, RDU). 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 | 250° at 8 kt | +2 kt | 118 kt | 10 h 34 min | 11:55 am EDT (15:55 UTC) | |
| 6,500 ft | 250° at 9 kt | +3 kt | 14 °C | 117 kt | 10 h 39 min | 12:00 pm EDT (16:00 UTC) |
| 8,500 ft | 250° at 13 kt | +4 kt | 12 °C | 116 kt | 10 h 45 min | 12:06 pm EDT (16:06 UTC) |
| 10,500 ft | 250° at 15 kt | +3 kt | 10 °C | 117 kt | 10 h 39 min | 12:00 pm EDT (16:00 UTC) |
| 12,500 ft | 240° at 17 kt | +2 kt | 7 °C | 118 kt | 10 h 34 min | 11:55 am EDT (15:55 UTC) |
| 14,500 ft | 240° at 20 kt | +2 kt | 2 °C | 118 kt | 10 h 34 min | 11:55 am EDT (15:55 UTC) |
| 16,500 ft | 240° at 23 kt | +2 kt | -2 °C | 118 kt | 10 h 34 min | 11:55 am EDT (15:55 UTC) |
| 18,000 ft FL180 | 240° at 25 kt | +2 kt | -5 °C | 118 kt | 10 h 34 min | 11:55 am EDT (15:55 UTC) |
| 24,000 ft FL240 | 240° at 30 kt | +1 kt | -17 °C | 119 kt | 10 h 29 min | 11:50 am EDT (15:50 UTC) |
| 30,000 ft FL300 | 220° at 32 kt | −9 kt | -31 °C | 129 kt | 9 h 40 min | 11:01 am EDT (15:01 UTC) |
| 34,000 ft FL340 | 200° at 40 kt | −23 kt | -41 °C | 143 kt | 8 h 43 min | 10:04 am EDT (14:04 UTC) |
| 39,000 ft FL390 | 210° at 42 kt | −17 kt | -51 °C | 137 kt | 9 h 06 min | 10:27 am EDT (14:27 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| MIA | used from 0 nm out; 886 nm from the line | 150/7 | 140/5 17° | 160/5 14° | L/V 9° | 230/8 -5° | 230/8 -17° | 150/11 -32° | 150/25 -41° | 180/29 -51° |
| MLB | used from 649 nm out; 437 nm from the line | 230/6 | 230/12 17° | 240/13 12° | 240/14 7° | 240/20 -5° | 240/24 -16° | 210/21 -32° | 190/33 -41° | 200/36 -52° |
| ILM | used from 748 nm out; 371 nm from the line | 270/22 | 270/23 11° | 260/35 10° | 240/41 6° | 240/49 -5° | 240/61 -16° | 230/74 -30° | 220/79 -40° | 230/71 -51° |
| RDU | used from 1197 nm out; 25 nm from the line | 280/33 | 300/23 11° | 300/28 8° | 290/28 4° | 260/41 -6° | 240/52 -18° | 230/66 -31° | 230/76 -39° | 240/52 -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 |
|---|---|---|---|---|---|---|---|
| SJU San Juan, PR | departure | VFR Sky: a few clouds at 2,800 feet | from the east-southeast (110°) at 4 knots | 10+ mi | none | 9 ft | 12:56 am AST (04:56 UTC) |
| OAJ Jacksonville, NC | 1167 nm out, 11 nm east of the line, tower | VFR Sky: overcast at 4,100 feet | from the west-southwest (240°) at 8 knots | 10+ mi | 4,100 ft | 92 ft | 01:56 UTC |
| RDU Raleigh/Durham, NC | destination | VFR Sky: a few clouds at 2,500 feet, a broken layer at 4,300 feet | from the southwest (230°) at 10 knots, gusting to 20 | 10+ mi | 4,300 ft | 435 ft | 12:51 am EDT (04:51 UTC) |
The highest airport on this list sits at 435 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At RDU when you get there the forecast at the estimated arrival, 10:04 am EDT (14:04 UTC)
Wind from the northwest at 9 knots, gusting to 18, visibility more than 6 miles, a broken layer at 5,000 feet VFR
The whole forecast for RDU
- From Sun 8:00 pm EDT (00:00 UTC): wind from the west-southwest at 12 knots, gusting to 21, visibility more than 6 miles, scattered clouds at 4,000 feet, a broken layer at 6,000 feet
- From Mon 8:00 am EDT (12:00 UTC): wind from the west-northwest at 8 knots, visibility more than 6 miles, a broken layer at 5,000 feet
- From Mon 10:00 am EDT (14:00 UTC): wind from the northwest at 9 knots, gusting to 18, visibility more than 6 miles, a broken layer at 5,000 feet
The forecast for SJU, the departure
- From Sun 10:00 pm AST (02:00 UTC): wind from the east-southeast at 6 knots, visibility more than 6 miles, light rain showers, scattered clouds at 2,500 feet, scattered clouds at 5,000 feet
- From Mon 10:00 am AST (14:00 UTC): wind from the east at 11 knots, visibility more than 6 miles, showers nearby, a few clouds at 2,500 feet, scattered clouds at 4,000 feet
- From Mon 1:00 pm AST (17:00 UTC): wind from the east at 13 knots, gusting to 20, visibility more than 6 miles, light rain showers, thunderstorms nearby, scattered clouds at 2,500 feet (thunderheads), a broken layer at 5,000 feet
- From Mon 7:00 pm AST (23:00 UTC): wind from the east at 5 knots, visibility more than 6 miles, showers nearby, scattered clouds at 3,000 feet, scattered clouds at 6,000 feet
Temporary flight restrictions on the line or within 25 nm of it
- 6/4508 CEIBA, PR 24 nm from the route, at the departure end · security · ZSU
Daylight
Sunset at SJU 6:03 pm AST (22:03 UTC), at RDU 6:43 pm EDT (22:43 UTC) (civil twilight ends 7:09 pm EDT (23:09 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: Luis Munoz Marin International, Raleigh-Durham International.