Dubuque Regional to Gulfport-Biloxi International DBQ → GPT
724 nautical miles (834 statute miles) south on a straight line, true course 173°, about 170° magnetic at the departure end (variation 3E). At 120 knots that is 4 h 46 min at the quickest height in today's winds (39,000 ft, a 32-knot tailwind), arriving about 6:33 am CDT (11:33 UTC), after sunset at the destination. Right now DBQ is VFR, wind from the south-southwest (200°) at 9 knots; GPT is 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: 6 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: 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 first 50 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 DBQ.
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 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 8 forecast points nearest it (DBQ, BRL, SPI, STL, CGI, MEM, JAN, MOB). 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 | 240° at 18 kt | +7 kt | 113 kt | 6 h 24 min | 8:11 am CDT (13:11 UTC) | |
| 5,500 ft | 250° at 17 kt | +3 kt | 117 kt | 6 h 11 min | 7:58 am CDT (12:58 UTC) | |
| 7,500 ft | 270° at 16 kt | −1 kt | 13 °C | 121 kt | 5 h 59 min | 7:46 am CDT (12:46 UTC) |
| 9,500 ft | 280° at 14 kt | −4 kt | 10 °C | 124 kt | 5 h 50 min | 7:37 am CDT (12:37 UTC) |
| 11,500 ft | 290° at 13 kt | −6 kt | 7 °C | 126 kt | 5 h 45 min | 7:32 am CDT (12:32 UTC) |
| 13,500 ft | 290° at 14 kt | −6 kt | 3 °C | 126 kt | 5 h 45 min | 7:32 am CDT (12:32 UTC) |
| 15,500 ft | 290° at 15 kt | −6 kt | -1 °C | 126 kt | 5 h 45 min | 7:32 am CDT (12:32 UTC) |
| 17,500 ft | 280° at 17 kt | −6 kt | -5 °C | 126 kt | 5 h 45 min | 7:32 am CDT (12:32 UTC) |
| 18,000 ft FL180 | 280° at 18 kt | −6 kt | -6 °C | 126 kt | 5 h 45 min | 7:32 am CDT (12:32 UTC) |
| 24,000 ft FL240 | 280° at 25 kt | −8 kt | -18 °C | 128 kt | 5 h 39 min | 7:26 am CDT (12:26 UTC) |
| 30,000 ft FL300 | 290° at 31 kt | −16 kt | -32 °C | 136 kt | 5 h 19 min | 7:06 am CDT (12:06 UTC) |
| 34,000 ft FL340 | 300° at 42 kt | −25 kt | -41 °C | 145 kt | 5 h | 6:47 am CDT (11:47 UTC) |
| 39,000 ft FL390 | 310° at 47 kt | −32 kt | -52 °C | 152 kt | 4 h 46 min | 6:33 am CDT (11:33 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| DBQ | used from 0 nm out; 25 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° |
| BRL | used from 50 nm out; 36 nm from the line | 230/24 | 240/29 15° | 290/16 10° | 280/15 4° | 260/23 -7° | 260/32 -19° | 260/36 -33° | 280/48 -41° | 280/59 -52° |
| SPI | used from 149 nm out; 33 nm from the line | 220/21 | 250/23 16° | 260/27 9° | 270/14 6° | 270/23 -7° | 270/31 -19° | 270/28 -33° | 290/48 -42° | 300/55 -52° |
| STL | used from 198 nm out; 11 nm from the line | 250/24 | 250/24 16° | 260/23 9° | 270/16 6° | 260/25 -6° | 270/29 -19° | 290/34 -33° | 290/48 -41° | 290/54 -51° |
| CGI | used from 248 nm out; 45 nm from the line | 240/20 | 270/15 15° | 280/15 11° | 300/13 6° | 290/20 -6° | 280/24 -18° | 300/34 -32° | 300/47 -41° | 310/49 -51° |
| MEM | used from 397 nm out; 27 nm from the line | 230/19 | 260/16 15° | 270/17 12° | 300/13 6° | 300/15 -5° | 300/26 -18° | 300/34 -32° | 300/41 -40° | 310/46 -52° |
| JAN | used from 546 nm out; 52 nm from the line | 230/10 | 270/13 18° | 270/11 12° | 310/11 6° | 300/15 -4° | 300/22 -16° | 310/33 -31° | 320/37 -41° | 330/41 -52° |
| MOB | used from 645 nm out; 61 nm from the line | 330/5 | 330/6 19° | 340/6 11° | 330/10 7° | 320/16 -5° | 310/26 -16° | 340/40 -32° | 340/47 -42° | 350/51 -52° |
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 |
|---|---|---|---|---|---|---|---|
| DBQ Dubuque, IA | departure | VFR | from the south-southwest (200°) at 9 knots | 10+ mi | none | 1,076 ft | 12:53 am CDT (05:53 UTC) |
| MLI Moline, IL | 60 nm out, 3 nm northeast of the line, tower | VFR | from the south (190°) at 9 knots | 10+ mi | none | 589 ft | 05:52 UTC |
| GBG Galesburg, IL | 89 nm out, 2 nm east of the line | VFR | from the south (170°) at 4 knots | 10+ mi | none | 764 ft | 06:35 UTC |
| ALN Alton/St Louis, IL | 208 nm out, 7 nm southeast of the line, tower | VFR | from the south-southwest (200°) at 5 knots | 10+ mi | none | 543 ft | 06:35 UTC |
| CPS Cahokia/St Louis, IL | 228 nm out, 3 nm south of the line, tower | VFR | from the south-southeast (160°) at 4 knots | 10+ mi | none | 412 ft | 05:53 UTC |
| CGI Cape Girardeau, MO | 318 nm out, 18 nm east of the line, tower | VFR | from the west-southwest (240°) at 6 knots | 10+ mi | none | 341 ft | 20:53 UTC |
| NQA Millington, TN | 427 nm out, 9 nm west of the line, tower | VFR | calm | 10+ mi | none | 322 ft | 23:50 UTC |
| OLV Olive Branch, MS | 447 nm out, 7 nm west of the line, tower | reported, no category | from the south (180°) at 5 knots | 10+ mi | none | 401 ft | 06:35 UTC |
| OSX Kosciusko, MS | 566 nm out, 8 nm west of the line | no report just now | 494 ft | ||||
| LUL Laurel, MS | 645 nm out, 4 nm southeast of the line | VFR | calm | 10+ mi | none | 238 ft | 06:35 UTC |
| HBG Hattiesburg, MS | 675 nm out, 5 nm northwest of the line | reported, no category | calm | 10+ mi | none | 150 ft | 05:53 UTC |
| GPT Gulfport, MS | destination | VFR | calm | 10+ mi | none | 28 ft | 12:53 am CDT (05:53 UTC) |
The highest airport on this list sits at 1,076 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At GPT when you get there the forecast at the estimated arrival, 6:33 am CDT (11:33 UTC)
Wind from the south at 5 knots, visibility more than 6 miles, clear skies VFR
The whole forecast for GPT
- From Mon 1:00 am CDT (06:00 UTC): wind from the south at 5 knots, visibility more than 6 miles, clear skies
The forecast for DBQ, the departure
- From Mon 1:00 am CDT (06:00 UTC): wind from the south at 7 knots, visibility more than 6 miles, low-level wind shear, a broken layer at 25,000 feet
- From Mon 10:00 am CDT (15:00 UTC): wind from the south-southwest at 15 knots, gusting to 22, visibility more than 6 miles, scattered clouds at 25,000 feet
- From Mon 7:00 pm CDT (00:00 UTC): wind from the south-southwest at 12 knots, visibility more than 6 miles, low-level wind shear, a few clouds at 25,000 feet
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 DBQ 6:26 pm CDT (23:26 UTC), at GPT 6:28 pm CDT (23:28 UTC) (civil twilight ends 6:52 pm CDT (23:52 UTC)). At 120 knots the arrival at GPT is before sunrise there (6:56 am CDT (11:56 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: Dubuque Regional, Gulfport-Biloxi International.
