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 6:24 am CDT (11:24 UTC), after sunset at the destination. Right now DCA is marginal VFR, wind from the northwest (320°) at 5 knots; GRB is VFR, wind from the south (190°) at 4 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
- SIGMET E19E: thunderstorms (a convective SIGMET) up to 43,000 ft, moving from the southwest at 20 knots, until 2:55 am EDT (06:55 UTC). Over the first 108 nm of the route.
as issued
WSUS31 KKCI 120455 MKCE WST 120455 CONVECTIVE SIGMET 19E VALID UNTIL 0655Z CT NY NJ PA DE MD VA DC WV AND DE NJ NY MD CT VA CSTL WTRS FROM 20NNW HTO-70SSE HTO-90SE SIE-20WNW LYH-40ESE AIR-20NNW HTO AREA EMBD TS MOV FROM 24020KT. TOPS TO FL430.
- 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
- B38M at 20,000 ft, 14 nm southwest, 11:11 pm EDT (03:11 UTC): moderate clear-air turbulence from 20,000 ft to 25,000 ft. 39 nm along the route, 14 nm southwest of the line.
as filed, and in English
IAD UA /OV AML300020/TM 0311/FL200/TP B38M/TB MOD CAT 200-250
- Report
- a routine report filed through IAD
- Where
- 20 nm northwest (300°) of AML
- Time
- 03:11 UTC
- Height
- at 20,000 ft
- Aircraft
- B38M
- Turbulence
- moderate clear-air turbulence from 20,000 ft to 25,000 ft
- B712 descending, 26 nm northeast, 11:10 pm EDT (03:10 UTC): remarks: light rain light chop bases 50,000 ft ft. At the departure end, 26 nm northeast of the line.
as filed, and in English
BWI UA /OV RWY 15R/TM 0310/FLDURD/TP B712/RM LIGHT RAIN. LIGHT CHOP. BASES 500 FT
- Report
- a routine report filed through BWI
- Where
- runway 15R
- Time
- 03:10 UTC
- Height
- during the descent
- Aircraft
- B712
- Remarks
- light rain light chop bases 50,000 ft ft
- E75S at 22,000 ft, 20 nm northeast, 10:51 pm EDT (02:51 UTC): light to moderate turbulence, remarks: zob. 118 nm along the route, 20 nm northeast of the line.
as filed, and in English
JST UA /OV JST/TM 0251/FL220/TP E75S/TB LGHT-MOD/RM ZOB
- Report
- a routine report filed through JST
- Where
- over JST
- Time
- 02:51 UTC
- Height
- at 22,000 ft
- Aircraft
- E75S
- Turbulence
- lght-mod
- Remarks
- zob
- B738 at 1,800 ft, 47 nm southwest, 1:18 am EDT (05:18 UTC): overcast from 1,800 ft to 2,700 ft, remarks: during the climb. 345 nm along the route, 47 nm southwest of the line.
as filed, and in English
TOL UA /OV KTOL/TM 0518/FL018/TP B738/SK OVC018-TOP027/RM DURC
- Report
- a routine report filed through TOL
- Where
- over KTOL
- Time
- 05:18 UTC
- Height
- at 1,800 ft
- Aircraft
- B738
- Sky
- overcast from 1,800 ft, tops 2,700 ft
- Remarks
- during the climb
- B738 at 1,300 ft, 47 nm southwest, 12:45 am EDT (04:45 UTC): overcast from 1,300 ft to 3,000 ft, remarks: during the descent. 345 nm along the route, 47 nm southwest of the line.
as filed, and in English
TOL UA /OV KTOL/TM 0445/FL013/TP B738/SK OVC013-TOP030/RM DURD
- Report
- a routine report filed through TOL
- Where
- over KTOL
- Time
- 04:45 UTC
- Height
- at 1,300 ft
- Aircraft
- B738
- Sky
- overcast from 1,300 ft, tops 3,000 ft
- Remarks
- during the descent
- A333 descending, 6 nm south, 1:44 am EDT (05:44 UTC): a routine report with nothing remarked on. 355 nm along the route, 6 nm south of the line.
as filed, and in English
DTW UA /OV DTW/TM 0544/FLDURD/TP A333/SK TOPS 025
- Report
- a routine report filed through DTW
- Where
- over DTW
- Time
- 05:44 UTC
- Height
- during the descent
- Aircraft
- A333
- Sky
- tops 2,500 ft
- B739 descending, 6 nm south, 12:54 am EDT (04:54 UTC): a routine report with nothing remarked on. 355 nm along the route, 6 nm south of the line.
as filed, and in English
DTW UA /OV DTW/TM 0454/FLDURD/TP B739/SK BASES 011
- Report
- a routine report filed through DTW
- Where
- over DTW
- Time
- 04:54 UTC
- Height
- during the descent
- Aircraft
- B739
- Sky
- bases 1,100 ft
- A320 descending, 6 nm south, 11:27 pm EDT (03:27 UTC): overcast above 1,400 ft. 355 nm along the route, 6 nm south of the line.
as filed, and in English
DTW UA /OV DTW/TM 0327/FLDURD/TP A320/SK 014 OVC
- Report
- a routine report filed through DTW
- Where
- over DTW
- Time
- 03:27 UTC
- Height
- during the descent
- Aircraft
- A320
- Sky
- at 1,400 ft overcast
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 | 6:24 am CDT (11:24 UTC) |
| 6,500 ft | 320° at 13 kt | +13 kt | 12 °C | 107 kt | 5 h 37 min | 6:27 am CDT (11:27 UTC) |
| 8,500 ft | 320° at 13 kt | +13 kt | 9 °C | 107 kt | 5 h 37 min | 6:27 am CDT (11:27 UTC) |
| 10,500 ft | 320° at 12 kt | +12 kt | 6 °C | 108 kt | 5 h 34 min | 6:24 am CDT (11:24 UTC) |
| 12,500 ft | 320° at 12 kt | +12 kt | 2 °C | 108 kt | 5 h 34 min | 6:24 am CDT (11:24 UTC) |
| 14,500 ft | 310° at 16 kt | +15 kt | -2 °C | 105 kt | 5 h 43 min | 6:33 am CDT (11:33 UTC) |
| 16,500 ft | 310° at 19 kt | +19 kt | -7 °C | 101 kt | 5 h 57 min | 6:47 am CDT (11:47 UTC) |
| 18,000 ft FL180 | 310° at 22 kt | +22 kt | -10 °C | 98 kt | 6 h 08 min | 6:58 am CDT (11:58 UTC) |
| 24,000 ft FL240 | 310° at 28 kt | +28 kt | -21 °C | 92 kt | 6 h 32 min | 7:22 am CDT (12:22 UTC) |
| 30,000 ft FL300 | 320° at 38 kt | +37 kt | -36 °C | 83 kt | 7 h 14 min | 8:04 am CDT (13:04 UTC) |
| 34,000 ft FL340 | 310° at 47 kt | +46 kt | -43 °C | 74 kt | 8 h 07 min | 8:57 am CDT (13:57 UTC) |
| 39,000 ft FL390 | 310° at 52 kt | +51 kt | -50 °C | 69 kt | 8 h 43 min | 9:33 am CDT (14:33 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 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 | marginal VFR Sky: overcast at 1,000 feet | from the northwest (320°) at 5 knots | 10+ mi | 1,000 ft | 14 ft | 1:36 am EDT (05:36 UTC) |
| MRB Martinsburg, WV | 59 nm out, 4 nm southeast of the line, tower | marginal VFR Sky: overcast at 1,100 feet | from the north-northwest (340°) at 6 knots | 10+ mi | 1,100 ft | 564 ft | 04:53 UTC |
| JST Johnstown, PA | 118 nm out, 20 nm northeast of the line, tower | low IFR Sky: sky obscured at 200 feet Weather: fog | calm | 0.25 mi | 200 ft | 2,284 ft | 04:54 UTC |
| LBE Latrobe, PA | 138 nm out, 2 nm north of the line, tower | IFR Sky: scattered clouds at 600 feet, overcast at 900 feet | calm | 10+ mi | 900 ft | 1,198 ft | 05:35 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: scattered clouds at 1,400 feet, overcast at 2,400 feet | from the northwest (320°) at 7 knots | 10+ mi | 2,400 ft | 583 ft | 05:32 UTC |
| DTW Detroit, MI | 355 nm out, 6 nm south of the line, tower | marginal VFR Sky: overcast at 1,200 feet | from the west (280°) at 3 knots | 10+ mi | 1,200 ft | 645 ft | 04:53 UTC |
| LAN Lansing, MI | 414 nm out, 7 nm southwest of the line, tower | VFR | from the south (190°) at 4 knots | 8 mi | none | 860 ft | 04:53 UTC |
| GRR Grand Rapids, MI | 453 nm out, 23 nm southwest of the line, tower | VFR Weather: mist | from the south (170°) at 3 knots | 6 mi | none | 793 ft | 04:53 UTC |
| FFX Fremont, MI | 492 nm out, 7 nm south of the line | VFR | from the south-southeast (150°) at 3 knots | 9 mi | none | 771 ft | 05:35 UTC |
| MTW Manitowoc, WI | 571 nm out, 9 nm southwest of the line | VFR | calm | 10+ mi | none | 650 ft | 04:56 UTC |
| GRB Green Bay, WI | destination | VFR | from the south (190°) at 4 knots | 10+ mi | none | 695 ft | 11:53 pm CDT (04:53 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, 6:24 am CDT (11:24 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)). At 120 knots the arrival at GRB is before sunrise there (7:03 am CDT (12:03 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.