Oakland San Francisco Bay Airport to Groton-New London Airport OAK → GON
2,301 nautical miles (2,648 statute miles) east on a straight line, true course 068°, about 054° magnetic at the departure end (variation 14E). At 120 knots that is 13 h 52 min at the quickest height in today's winds (39,000 ft, a 46-knot tailwind), arriving about 6:59 pm EDT (22:59 UTC), after sunset at the destination. Right now OAK is VFR, wind from the east-southeast (110°) at 5 knots; GON is marginal VFR, wind from the north-northeast (030°) at 9 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 W18W: thunderstorms (a convective SIGMET) up to 30,000 ft, moving from the southwest at 20 knots, until 3:55 am PDT (10:55 UTC). Over the route from 349 to 418 nm out.
as issued
WSUS33 KKCI 120855 MKCW WST 120855 CONVECTIVE SIGMET 18W VALID UNTIL 1055Z AZ UT NV FROM 20WNW BVL-30N BCE-60SSW BCE-50NNE LAS-60NNW ELY-20WNW BVL AREA TS MOV FROM 24020KT. TOPS TO FL300.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the first 169 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 239 to 777 nm out.
- AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the route from 329 to 658 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Over the route from 528 to 857 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 628 to 867 nm out.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Over the route from 687 to 827 nm out.
- AIRMET TANGO 5W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Over the route from 727 to 737 nm out.
- 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 route from 897 to 1096 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). Over the route from 986 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 608 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the route from 1993 to 2192 nm out.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 24,000 ft to 33,000 ft. Over the last 209 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 OAK.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- A35K at 32,000 ft, 22 nm north, 1:39 am PDT (08:39 UTC): moderate chop turbulence, remarks: fdcs zoa. At the departure end, 22 nm north of the line.
as filed, and in English
OAK UA /OV OAK348024/TM 0839/FL320/TP A35K/TB MOD CHOP/RM FDCS ZOA
- Report
- a routine report filed through OAK
- Where
- 24 nm north (348°) of OAK
- Time
- 08:39 UTC
- Height
- at 32,000 ft
- Aircraft
- A35K
- Turbulence
- moderate chop
- Remarks
- fdcs zoa
- A21N at 35,000 ft, 32 nm north, 1:52 am PDT (08:52 UTC): light to moderate chop turbulence, remarks: zob. 2042 nm along the route, 32 nm north of the line.
as filed, and in English
ROC UA /OV GEE190015/TM 0852/FL350/TP A21N/TB LGHT-MOD CHOP/RM ZOB
- Report
- a routine report filed through ROC
- Where
- 15 nm south (190°) of GEE
- Time
- 08:52 UTC
- Height
- at 35,000 ft
- Aircraft
- A21N
- Turbulence
- lght-mod chop
- Remarks
- zob
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 21 forecast points nearest it (SFO, SAC, RNO, BAM, ELY, SLC, RKS, DEN, BFF, ONL, OMA, MCW, DBQ, JOT, MKG, FWA, CLE, BUF, AVP, JFK, BDL). 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 | 270° at 14 kt | −15 kt | 135 kt | 17 h 03 min | 10:10 pm EDT (02:10 UTC) | |
| 5,500 ft | 280° at 13 kt | −14 kt | 22 °C | 134 kt | 17 h 10 min | 10:17 pm EDT (02:17 UTC) |
| 7,500 ft | 260° at 14 kt | −15 kt | 11 °C | 135 kt | 17 h 03 min | 10:10 pm EDT (02:10 UTC) |
| 9,500 ft | 260° at 16 kt | −17 kt | 7 °C | 137 kt | 16 h 48 min | 9:55 pm EDT (01:55 UTC) |
| 11,500 ft | 250° at 19 kt | −20 kt | 2 °C | 140 kt | 16 h 26 min | 9:33 pm EDT (01:33 UTC) |
| 13,500 ft | 250° at 20 kt | −21 kt | -2 °C | 141 kt | 16 h 19 min | 9:26 pm EDT (01:26 UTC) |
| 15,500 ft | 250° at 20 kt | −21 kt | -6 °C | 141 kt | 16 h 19 min | 9:26 pm EDT (01:26 UTC) |
| 17,500 ft | 260° at 21 kt | −22 kt | -10 °C | 142 kt | 16 h 12 min | 9:19 pm EDT (01:19 UTC) |
| 18,000 ft FL180 | 260° at 21 kt | −22 kt | -11 °C | 142 kt | 16 h 12 min | 9:19 pm EDT (01:19 UTC) |
| 24,000 ft FL240 | 260° at 26 kt | −27 kt | -22 °C | 147 kt | 15 h 39 min | 8:46 pm EDT (00:46 UTC) |
| 30,000 ft FL300 | 260° at 35 kt | −36 kt | -34 °C | 156 kt | 14 h 45 min | 7:52 pm EDT (23:52 UTC) |
| 34,000 ft FL340 | 260° at 40 kt | −43 kt | -39 °C | 163 kt | 14 h 07 min | 7:14 pm EDT (23:14 UTC) |
| 39,000 ft FL390 | 260° at 43 kt | −46 kt | -47 °C | 166 kt | 13 h 52 min | 6:59 pm EDT (22:59 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| SFO | used from 0 nm out; 34 nm from the line | 090/9 | 050/12 4° | 010/17 -2° | 350/34 -3° | 360/70 -11° | 360/75 -22° | 350/57 -38° | 330/37 -42° | 280/25 -44° |
| SAC | used from 50 nm out; 41 nm from the line | L/V | L/V 4° | 340/9 -4° | 340/22 -8° | 360/71 -12° | 360/82 -23° | 350/58 -37° | 310/30 -40° | 270/25 -44° |
| RNO | used from 100 nm out; 63 nm from the line | 010/6 | 270/12 -3° | 220/26 -10° | 280/13 -19° | 350/44 -24° | 320/30 -32° | 260/22 -36° | 240/24 -42° | |
| BAM | used from 249 nm out; 80 nm from the line | 280/9 -2° | 260/18 -8° | 190/47 -19° | 200/50 -29° | 210/56 -29° | 220/54 -34° | 220/45 -42° | ||
| ELY | used from 299 nm out; 43 nm from the line | 210/34 1° | 220/40 -4° | 220/39 -17° | 210/51 -24° | 220/65 -30° | 220/60 -37° | 220/56 -44° | ||
| SLC | used from 448 nm out; 44 nm from the line | 200/16 | 210/23 4° | 220/34 -3° | 210/40 -16° | 220/66 -23° | 220/64 -31° | 220/57 -36° | 220/50 -43° | |
| RKS | used from 598 nm out; 47 nm from the line | 250/9 | 230/21 -1° | 210/43 -14° | 220/59 -23° | 220/55 -32° | 220/53 -35° | 220/48 -44° | ||
| DEN | used from 747 nm out; 115 nm from the line | 270/24 11° | 230/13 5° | 230/48 -8° | 230/46 -20° | 230/63 -30° | 240/78 -36° | 240/78 -48° | ||
| BFF | used from 797 nm out; 71 nm from the line | 280/28 | 260/39 11° | 240/34 5° | 210/38 -11° | 210/52 -22° | 230/61 -31° | 230/61 -36° | 240/56 -45° | |
| ONL | used from 996 nm out; 93 nm from the line | 250/31 22° | 230/27 16° | 220/25 8° | 230/25 -9° | 220/29 -22° | 250/42 -33° | 250/48 -36° | 250/52 -46° | |
| OMA | used from 1196 nm out; 70 nm from the line | 230/47 | 240/33 21° | 230/22 13° | 220/27 5° | 240/35 -8° | 250/43 -21° | 260/47 -33° | 260/59 -36° | 270/58 -46° |
| MCW | used from 1295 nm out; 47 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° |
| DBQ | used from 1395 nm out; 49 nm from the line | 250/27 | 260/23 17° | 240/26 10° | 260/30 4° | 280/26 -9° | 280/36 -21° | 270/41 -36° | 280/52 -41° | 290/67 -48° |
| JOT | used from 1544 nm out; 68 nm from the line | 250/25 | 260/22 14° | 250/17 9° | 270/21 5° | 280/28 -8° | 280/36 -20° | 270/41 -35° | 280/57 -42° | 290/65 -50° |
| MKG | used from 1594 nm out; 55 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° |
| FWA | used from 1743 nm out; 110 nm from the line | 270/20 | 300/16 15° | 290/14 10° | 280/17 3° | 290/25 -7° | 280/30 -19° | 280/34 -35° | 290/48 -44° | 300/64 -52° |
| CLE | used from 1793 nm out; 75 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 1943 nm out; 53 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° |
| AVP | used from 2042 nm out; 77 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 2192 nm out; 58 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° |
| BDL | used from 2242 nm out; 30 nm from the line | 020/15 | 010/19 10° | 340/10 7° | 300/17 3° | 280/23 -10° | 250/35 -22° | 250/44 -38° | 250/55 -42° | 250/57 -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 |
|---|---|---|---|---|---|---|---|
| OAK Oakland, CA | departure | VFR Sky: a few clouds at 2,000 feet | from the east-southeast (110°) at 5 knots | 10+ mi | none | 9 ft | 1:53 am PDT (08:53 UTC) |
| SCK Stockton, CA | 50 nm out, 8 nm south of the line, tower | VFR Sky: scattered clouds at 9,500 feet | from the northeast (050°) at 4 knots | 10+ mi | none | 32 ft | 08:55 UTC |
| TMT Austin, NV | 259 nm out, 18 nm northwest of the line | VFR Sky: scattered clouds at 6,000 feet, scattered clouds at 7,000 feet, overcast at 8,500 feet | from the southeast (140°) at 4 knots | 10+ mi | 8,500 ft | 5,735 ft | 08:55 UTC |
| PVU Provo, UT | 508 nm out, 12 nm southeast of the line, tower | VFR Sky: overcast at 6,000 feet | from the east (090°) at 4 knots | 10+ mi | 6,000 ft | 4,496 ft | 08:56 UTC |
| BFF Scottsbluff, NE | 897 nm out, 8 nm northwest of the line | IFR Sky: a broken layer at 600 feet | from the north-northeast (030°) at 8 knots | 10+ mi | 600 ft | 3,967 ft | 09:02 UTC |
| TIF Thedford, NE | 1026 nm out, 8 nm south of the line | low IFR Sky: overcast at 300 feet | from the east (100°) at 7 knots | 7 mi | 300 ft | 2,925 ft | 08:55 UTC |
| SUX Sioux City, IA | 1215 nm out, 2 nm south of the line, tower | VFR | calm | 10+ mi | none | 1,098 ft | 08:52 UTC |
| ALO Waterloo, IA | 1395 nm out, 4 nm southwest of the line, tower | VFR | from the south (170°) at 5 knots | 10+ mi | none | 873 ft | 08:54 UTC |
| DET Detroit, MI | 1803 nm out, 5 nm southeast of the line, tower | IFR Sky: overcast at 800 feet | from the southwest (230°) at 3 knots | 10+ mi | 800 ft | 624 ft | 08:53 UTC |
| ERI Erie, PA | 1933 nm out, 12 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 |
| OXC Oxford, CT | 2252 nm out, 1 nm south of the line, tower | low IFR Sky: overcast at 400 feet | from the north-northeast (030°) at 12 knots, gusting to 17 | 10+ mi | 400 ft | 730 ft | 08:56 UTC |
| GON Groton (New London), CT | destination | marginal VFR Sky: a broken layer at 1,200 feet, a broken layer at 2,600 feet | from the north-northeast (030°) at 9 knots | 10+ mi | 1,200 ft | 9 ft | 4:56 am EDT (08:56 UTC) |
The highest airport on this list sits at 5,735 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At GON when you get there the forecast at the estimated arrival, 6:59 pm EDT (22:59 UTC)
Wind from the northwest at 7 knots, visibility more than 6 miles, scattered clouds at 2,000 feet, a broken layer at 5,000 feet VFR
The whole forecast for GON
- From Mon 5:00 am EDT (09:00 UTC): wind from the north-northeast at 14 knots, visibility 6 miles, mist, showers nearby, scattered clouds at 400 feet, overcast at 900 feet
- From Mon 9:00 am EDT (13:00 UTC): wind from the north at 11 knots, visibility more than 6 miles, overcast at 1,000 feet
- From Mon 11:00 am EDT (15:00 UTC): wind from the north at 8 knots, visibility more than 6 miles, a broken layer at 2,000 feet
- From Mon 3:00 pm EDT (19:00 UTC): wind from the northwest at 7 knots, visibility more than 6 miles, scattered clouds at 2,000 feet, a broken layer 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 OAK, the departure
- From Sun 11:00 pm PDT (06:00 UTC): wind from the south at 7 knots, visibility more than 6 miles, a few clouds at 1,500 feet
- From Mon 2:00 am PDT (09:00 UTC): wind from the east-southeast at 5 knots, visibility more than 6 miles, a few clouds at 1,500 feet
- From Mon 11:00 am PDT (18:00 UTC): wind from the west at 8 knots, visibility more than 6 miles, clear skies
Temporary flight restrictions on the line or within 25 nm of it
No temporary flight restriction on or near this route right now.
Daylight
Sunset at OAK 6:34 pm PDT (01:34 UTC), at GON 6:12 pm EDT (22:12 UTC) (civil twilight ends 6:40 pm EDT (22:40 UTC)). At 120 knots the arrival at GON is after sunset there (6:12 pm EDT (22:12 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: Oakland San Francisco Bay Airport, Groton-New London Airport.