Ronald Reagan Washington Ntl Airport to Green Bay/Austin Straubel International DCA → GRB
601 nautical miles (691 statute miles) northwest on a straight line, true course 308°, about 319° magnetic at the departure end (variation 11W). At 120 knots that is 5 h 34 min at the quickest height in today's winds (4,500 ft, a 12-knot headwind), arriving about 7:40 am CDT (12:40 UTC). Right now DCA is IFR, wind from the north-northwest (330°) at 12 knots; GRB is VFR, wind from the south-southwest (210°) at 6 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: 7 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 SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the first 473 nm of the route.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the first 108 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 49 to 187 nm out.
- 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). 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 DCA.
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 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 6 forecast points nearest it (RIC, PSB, AGC, CLE, MKG, GRB). 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 | 310° at 12 kt | +12 kt | 13 °C | 108 kt | 5 h 34 min | 7:40 am CDT (12:40 UTC) |
| 6,500 ft | 320° at 13 kt | +13 kt | 12 °C | 107 kt | 5 h 37 min | 7:43 am CDT (12:43 UTC) |
| 8,500 ft | 320° at 13 kt | +13 kt | 9 °C | 107 kt | 5 h 37 min | 7:43 am CDT (12:43 UTC) |
| 10,500 ft | 320° at 12 kt | +12 kt | 6 °C | 108 kt | 5 h 34 min | 7:40 am CDT (12:40 UTC) |
| 12,500 ft | 320° at 12 kt | +12 kt | 2 °C | 108 kt | 5 h 34 min | 7:40 am CDT (12:40 UTC) |
| 14,500 ft | 310° at 16 kt | +15 kt | -2 °C | 105 kt | 5 h 43 min | 7:49 am CDT (12:49 UTC) |
| 16,500 ft | 310° at 19 kt | +19 kt | -7 °C | 101 kt | 5 h 57 min | 8:03 am CDT (13:03 UTC) |
| 18,000 ft FL180 | 310° at 22 kt | +22 kt | -10 °C | 98 kt | 6 h 08 min | 8:14 am CDT (13:14 UTC) |
| 24,000 ft FL240 | 310° at 28 kt | +28 kt | -21 °C | 92 kt | 6 h 32 min | 8:38 am CDT (13:38 UTC) |
| 30,000 ft FL300 | 320° at 38 kt | +37 kt | -36 °C | 83 kt | 7 h 14 min | 9:20 am CDT (14:20 UTC) |
| 34,000 ft FL340 | 310° at 47 kt | +46 kt | -43 °C | 74 kt | 8 h 07 min | 10:13 am CDT (15:13 UTC) |
| 39,000 ft FL390 | 310° at 52 kt | +51 kt | -50 °C | 69 kt | 8 h 43 min | 10:49 am CDT (15:49 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| RIC | used from 0 nm out; 96 nm from the line | 270/23 | 280/19 11° | 270/18 8° | 240/22 4° | 230/39 -7° | 220/55 -18° | 220/75 -30° | 230/83 -39° | 230/64 -50° |
| PSB | used from 49 nm out; 78 nm from the line | 360/13 13° | 330/14 7° | 300/11 3° | 290/12 -11° | 240/23 -23° | 270/25 -36° | 250/34 -40° | 250/45 -48° | |
| AGC | used from 98 nm out; 39 nm from the line | 350/14 | 330/20 11° | 340/18 8° | 330/17 3° | 340/22 -11° | 340/31 -22° | 330/33 -36° | 300/34 -41° | 300/35 -47° |
| CLE | used from 197 nm out; 48 nm from the line | 340/7 | 010/16 13° | 350/18 8° | 350/20 3° | 340/31 -10° | 340/46 -21° | 340/54 -37° | 330/62 -44° | 340/65 -49° |
| MKG | used from 394 nm out; 75 nm from the line | 260/22 | 290/16 15° | 300/11 10° | 290/5 3° | 300/26 -9° | 300/32 -20° | 320/48 -36° | 320/61 -45° | 310/74 -53° |
| GRB | used from 542 nm out; 34 nm from the line | 250/36 | 270/23 16° | 270/14 9° | 240/18 4° | 280/26 -9° | 280/29 -20° | 290/42 -36° | 290/51 -45° | 290/72 -55° |
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 |
|---|---|---|---|---|---|---|---|
| DCA Washington, DC | departure | IFR Sky: overcast at 900 feet Weather: light drizzle, mist | from the north-northwest (330°) at 12 knots | 5 mi | 900 ft | 14 ft | 2:52 am EDT (06:52 UTC) |
| MRB Martinsburg, WV | 59 nm out, 4 nm southeast of the line, tower | VFR Sky: a few clouds at 1,500 feet, scattered clouds at 9,000 feet, a broken layer at 11,000 feet | from the north-northwest (340°) at 5 knots | 10+ mi | 11,000 ft | 564 ft | 06:53 UTC |
| JST Johnstown, PA | 118 nm out, 20 nm northeast of the line, tower | low IFR Sky: sky obscured at 200 feet Weather: light rain, fog | from the northwest (320°) at 6 knots | 0.5 mi | 200 ft | 2,284 ft | 06:54 UTC |
| LBE Latrobe, PA | 138 nm out, 2 nm north of the line, tower | IFR Sky: overcast at 600 feet | from the west-northwest (290°) at 4 knots | 10+ mi | 600 ft | 1,198 ft | 06:55 UTC |
| BVI Beaver Falls, PA | 197 nm out, 4 nm southeast of the line, tower | reported, no category | calm | none | 1,252 ft | 19:47 UTC | |
| BKL Cleveland, OH | 266 nm out, 3 nm northeast of the line, tower | marginal VFR Sky: a few clouds at 800 feet, a broken layer at 1,700 feet, overcast at 2,300 feet | from the north-northwest (340°) at 4 knots | 8 mi | 1,700 ft | 583 ft | 06:53 UTC |
| DTW Detroit, MI | 355 nm out, 6 nm south of the line, tower | marginal VFR Sky: overcast at 1,100 feet | from the west (260°) at 4 knots | 10+ mi | 1,100 ft | 645 ft | 06:53 UTC |
| LAN Lansing, MI | 414 nm out, 7 nm southwest of the line, tower | VFR | from the south (190°) at 5 knots | 9 mi | none | 860 ft | 06:53 UTC |
| GRR Grand Rapids, MI | 453 nm out, 23 nm southwest of the line, tower | VFR | from the southeast (140°) at 5 knots | 7 mi | none | 793 ft | 06:53 UTC |
| FFX Fremont, MI | 492 nm out, 7 nm south of the line | VFR | from the south-southeast (160°) at 3 knots | 9 mi | none | 771 ft | 06:55 UTC |
| MTW Manitowoc, WI | 571 nm out, 9 nm southwest of the line | VFR | from the southwest (230°) at 8 knots | 10+ mi | none | 650 ft | 06:56 UTC |
| GRB Green Bay, WI | destination | VFR | from the south-southwest (210°) at 6 knots | 10+ mi | none | 695 ft | 1:53 am CDT (06:53 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 GRB when you get there the forecast at the estimated arrival, 7:40 am CDT (12:40 UTC)
Wind from the south-southwest at 6 knots, visibility more than 6 miles, a broken layer at 20,000 feet VFR
The whole forecast for GRB
- From Mon 1:00 am CDT (06:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, low-level wind shear, a broken layer at 25,000 feet
- From Mon 5:00 am CDT (10:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, a broken layer at 20,000 feet
- From Mon 11:00 am CDT (16:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, clear skies
- From Mon 5:00 pm CDT (22:00 UTC): wind from the south at 4 knots, visibility more than 6 miles, scattered clouds at 6,000 feet, scattered clouds at 15,000 feet
- 30% chance between Mon 6:00 pm CDT (23:00 UTC) and 10:00 pm CDT (03:00 UTC): light rain showers, a broken layer at 6,000 feet
- From Mon 10:00 pm CDT (03:00 UTC): wind from the east-southeast at 4 knots, visibility more than 6 miles, scattered clouds at 2,000 feet
The forecast for DCA, the departure
- From Mon 2:00 am EDT (06:00 UTC): wind from the north at 8 knots, visibility 5 miles, light rain, mist, overcast at 900 feet
- From Mon 9:00 am EDT (13:00 UTC): wind from the north-northwest at 10 knots, gusting to 18, visibility more than 6 miles, overcast at 1,200 feet
- From Mon 1:00 pm EDT (17:00 UTC): wind from the north-northwest at 13 knots, gusting to 22, visibility more than 6 miles, scattered clouds at 1,500 feet, overcast at 2,500 feet
- From Mon 3:00 pm EDT (19:00 UTC): wind from the north-northwest at 10 knots, gusting to 17, visibility more than 6 miles, scattered clouds at 2,500 feet, a broken layer at 3,500 feet
- From Mon 5:00 pm EDT (21:00 UTC): wind from the northwest at 8 knots, visibility more than 6 miles, a broken layer at 3,500 feet
- From Mon 8:00 pm EDT (00:00 UTC): wind from the west-northwest at 5 knots, visibility more than 6 miles, scattered clouds at 4,000 feet
Temporary flight restrictions on the line or within 25 nm of it
- 4/9383 WASHINGTON, DC., USA on the route, at the departure end · security · ZDC
- 6/8600 Sterling, VA, Monday, October 12, 2026 through Monday, October 12, 2026 Local on the route, at the departure end · a VIP movement · today · ZDC
- 6/8587 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local on the route, 197 nm along the route · a VIP movement · today · ZOB
- 6/8888 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local 15 nm from the route, 217 nm along the route · security · today · ZOB
- 6/8829 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local on the route, 217 nm along the route · a VIP movement · today · ZOB
Daylight
Sunset at DCA 6:34 pm EDT (22:34 UTC), at GRB 6:13 pm CDT (23:13 UTC) (civil twilight ends 6:42 pm CDT (23:42 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: Ronald Reagan Washington Ntl Airport, Green Bay/Austin Straubel International.