Washington Dulles International to Salt Lake City International IAD → SLC
1,584 nautical miles (1,823 statute miles) west on a straight line, true course 285°, about 295° magnetic at the departure end (variation 10W). At 120 knots that is 15 h 14 min at the quickest height in today's winds (4,500 ft, a 16-knot headwind), arriving about 11:53 am MDT (17:53 UTC). Right now IAD is IFR, wind from the north (350°) at 8 knots; SLC is VFR, wind from the south (170°) 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: 1,415 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 7E: thunderstorms (a convective SIGMET) up to 33,000 ft, moving from the west at 15 knots, until 11:55 pm EDT (03:55 UTC). Over the first 229 nm of the route.
as issued
WSUS31 KKCI 120155 MKCE WST 120155 CONVECTIVE SIGMET 7E VALID UNTIL 0355Z PA MD VA DC WV OH FROM 10NNE JST-30WNW SBY-40ENE RIC-50SW BKW-20SE APE-10NNE JST AREA TS MOV FROM 28015KT. TOPS TO FL330.
- SIGMET 8W: thunderstorms (a convective SIGMET) up to 35,000 ft, moving from the southwest at 40 knots, until 11:55 pm EDT (03:55 UTC). Over the route from 1245 to 1295 nm out.
as issued
WSUS33 KKCI 120155 MKCW WST 120155 CONVECTIVE SIGMET 8W VALID UNTIL 0355Z CO MT WY FROM 40N SHR-60WNW RAP-20ENE CYS-30SW CYS-10NW BOY-40N SHR AREA TS MOV FROM 22040KT. TOPS TO FL350.
- 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 329 nm of the route.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the first 110 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 30 to 169 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). Over the route from 727 to 947 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the last 409 nm of the route.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the last 379 nm of the route.
- 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 1295 to 1505 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 1375 to 1465 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 189 nm of the route.
- AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the last 179 nm of the route.
- AIRMET SIERRA 2E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the last 100 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 IAD.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- E170 at 22,500 ft, 4 nm northwest, 7:44 pm EDT (23:44 UTC): moderate clear-air turbulence from 18,000 ft to 22,500 ft, remarks: during the descent FRDMM7 star. At the departure end, 4 nm northwest of the line.
as filed, and in English
OKV UA /OV ESL100020/TM 2344/FL225/TP E170/TB CONS MOD CAT 180-225/RM DURD FRDMM7 STAR
- Report
- a routine report filed through OKV
- Where
- 20 nm east (100°) of ESL
- Time
- 23:44 UTC
- Height
- at 22,500 ft
- Aircraft
- E170
- Turbulence
- continuous moderate clear-air turbulence from 18,000 ft to 22,500 ft
- Remarks
- during the descent FRDMM7 star
- A321 at 30,000 ft, 38 nm north, 7:49 pm EDT (23:49 UTC): moderate turbulence above 30,000 ft, remarks: zob. 100 nm along the route, 38 nm north of the line.
as filed, and in English
2G9 UA /OV IHD/TM 2349/FL300/TP A321/TB MOD 300/RM ZOB
- Report
- a routine report filed through 2G9
- Where
- over IHD
- Time
- 23:49 UTC
- Height
- at 30,000 ft
- Aircraft
- A321
- Turbulence
- moderate at 30,000 ft
- Remarks
- zob
- UAL2761 at 31,000 ft, 8 nm southwest, 7:57 pm EDT (23:57 UTC): moderate turbulence, wind 218° at 58 knots. 110 nm along the route, 8 nm southwest of the line.
as filed, and in English
ARP UAL2761 3917N 07949W 2357 F310 218/058KT TB CONT MOD TURB IC
- Report
- a routine report filed through ARP
- B38M at 29,000 ft, 19 nm north, 8:55 pm EDT (00:55 UTC): moderate turbulence above 29,000 ft, remarks: zob. 139 nm along the route, 19 nm north of the line.
as filed, and in English
MPG UA /OV AIR120030/TM 0055/FL290/TP B38M /TB OCNL MOD 290/RM ZOB
- Report
- a routine report filed through MPG
- Where
- 30 nm southeast (120°) of AIR
- Time
- 00:55 UTC
- Height
- at 29,000 ft
- Aircraft
- B38M
- Turbulence
- occasional moderate at 29,000 ft
- Remarks
- zob
- A320 at 34,000 ft, 35 nm north, 10:03 pm EDT (02:03 UTC): moderate chop turbulence. 339 nm along the route, 35 nm north of the line.
as filed, and in English
FWA UA /OV FWA115040/TM 0203/FL340/TP A320/TB MOD CHOP
- Report
- a routine report filed through FWA
- Where
- 40 nm southeast (115°) of FWA
- Time
- 02:03 UTC
- Height
- at 34,000 ft
- Aircraft
- A320
- Turbulence
- moderate chop
- UAL1340 at 40,000 ft, 34 nm south, 8:18 pm EDT (00:18 UTC): moderate chop turbulence, wind 244° at 70 knots. 1076 nm along the route, 34 nm south of the line.
as filed, and in English
ARP UAL1340 4046N 10049W 0018 F400 244/070KT TB OCNL MOD CHOP IC
- Report
- a routine report filed through ARP
- CRJ2 at 19,000 ft, 26 nm south, 8:47 pm EDT (00:47 UTC): moderate chop turbulence, remarks: ZDVWC-13. 1315 nm along the route, 26 nm south of the line.
as filed, and in English
EGE UA /OV RLG010052/TM 0047/FL190/TP CRJ2/TB COSN MOD CHOP/RM ZDVWC-13
- Report
- a routine report filed through EGE
- Where
- 52 nm north (010°) of RLG
- Time
- 00:47 UTC
- Height
- at 19,000 ft
- Aircraft
- CRJ2
- Turbulence
- cosn moderate chop
- Remarks
- ZDVWC-13
- A320 at 2,000 ft, 39 nm east, 9:46 pm EDT (01:46 UTC): a broken layer from 30,000 ft to 4,500 ft, remarks: CONLE5 sid. At the departure end, 39 nm east of the line.
as filed, and in English
BWI UA /OV BAL180005/TM 0146/FL020/TP A320/SK BKN003-TOP045/RM CONLE5 SID
- Report
- a routine report filed through BWI
- Where
- 5 nm south (180°) of BAL
- Time
- 01:46 UTC
- Height
- at 2,000 ft
- Aircraft
- A320
- Sky
- a broken layer from 300 ft, tops 4,500 ft
- Remarks
- CONLE5 sid
- B738 at 2,000 ft, 37 nm east, 9:43 pm EDT (01:43 UTC): a broken layer from 40,000 ft to 7,200 ft, remarks: TERPZ8 sid. At the departure end, 37 nm east of the line.
as filed, and in English
BWI UA /OV BAL260003/TM 0143/FL20/TP B738/SK BKN004-TOP072/RM TERPZ8 SID
- Report
- a routine report filed through BWI
- Where
- 3 nm west (260°) of BAL
- Time
- 01:43 UTC
- Height
- at 2,000 ft
- Aircraft
- B738
- Sky
- a broken layer from 400 ft, tops 7,200 ft
- Remarks
- TERPZ8 sid
- B38M at 400 ft, 20 nm east, 9:15 pm EDT (01:15 UTC): overcast above 40,000 ft. At the departure end, 20 nm east of the line.
as filed, and in English
DCA UA /OV DCA/TM 0115/FL004/TP B38M/SK OVC004
- Report
- a routine report filed through DCA
- Where
- over DCA
- Time
- 01:15 UTC
- Height
- at 400 ft
- Aircraft
- B38M
- Sky
- overcast from 400 ft
- A320 descending, 20 nm east, 8:27 pm EDT (00:27 UTC): a routine report with nothing remarked on. At the departure end, 20 nm east of the line.
as filed, and in English
DCA UA /OV RWY 1 FINAL/TM 0027/FLDURD/TP A320/SK BASES 400 FT
- Report
- a routine report filed through DCA
- Where
- runway 1 final
- Time
- 00:27 UTC
- Height
- during the descent
- Aircraft
- A320
- Sky
- bases 40,000 ft ft
- A21N at 600 ft, 39 nm east, 8:23 pm EDT (00:23 UTC): a broken layer above 600 ft. At the departure end, 39 nm east of the line.
as filed, and in English
BWI UA /OV BWI/TM 0023/FL006/TP A21N/SK BKN006
- Report
- a routine report filed through BWI
- Where
- over BWI
- Time
- 00:23 UTC
- Height
- at 600 ft
- Aircraft
- A21N
- Sky
- a broken layer from 600 ft
- A319 descending, 20 nm east, 8:02 pm EDT (00:02 UTC): a routine report with nothing remarked on. At the departure end, 20 nm east of the line.
as filed, and in English
DCA UA /OV RWY 1 DEPARTURE/TM 0002/FLDURC/TP A319/SK BASES 500 FT
- Report
- a routine report filed through DCA
- Where
- runway 1 departure
- Time
- 00:02 UTC
- Height
- during the climb
- Aircraft
- A319
- Sky
- bases 50,000 ft ft
- B763 at 500 ft, 39 nm east, 7:50 pm EDT (23:50 UTC): a broken layer above 500 ft. At the departure end, 39 nm east of the line.
as filed, and in English
BWI UA /OV BWI/TM 2350/FL005/TP B763/SK BKN005
- Report
- a routine report filed through BWI
- Where
- over BWI
- Time
- 23:50 UTC
- Height
- at 500 ft
- Aircraft
- B763
- Sky
- a broken layer from 500 ft
16 more routine reports are on the map.
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 15 forecast points nearest it (EKN, AGC, CMH, FWA, IND, JOT, SPI, BRL, DSM, OMA, GRI, BFF, DEN, RKS, SLC). 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 | 240° at 17 kt | +16 kt | 17 °C | 104 kt | 15 h 14 min | 11:53 am MDT (17:53 UTC) |
| 6,500 ft | 250° at 16 kt | +17 kt | 15 °C | 103 kt | 15 h 23 min | 12:02 pm MDT (18:02 UTC) |
| 8,500 ft | 250° at 16 kt | +16 kt | 11 °C | 104 kt | 15 h 14 min | 11:53 am MDT (17:53 UTC) |
| 10,500 ft | 250° at 15 kt | +16 kt | 7 °C | 104 kt | 15 h 14 min | 11:53 am MDT (17:53 UTC) |
| 12,500 ft | 250° at 15 kt | +16 kt | 3 °C | 104 kt | 15 h 14 min | 11:53 am MDT (17:53 UTC) |
| 14,500 ft | 250° at 17 kt | +18 kt | -1 °C | 102 kt | 15 h 32 min | 12:11 pm MDT (18:11 UTC) |
| 16,500 ft | 260° at 20 kt | +21 kt | -6 °C | 99 kt | 16 h | 12:39 pm MDT (18:39 UTC) |
| 18,000 ft FL180 | 260° at 21 kt | +23 kt | -9 °C | 97 kt | 16 h 20 min | 12:59 pm MDT (18:59 UTC) |
| 24,000 ft FL240 | 260° at 26 kt | +28 kt | -21 °C | 92 kt | 17 h 13 min | 1:52 pm MDT (19:52 UTC) |
| 30,000 ft FL300 | 260° at 31 kt | +34 kt | -33 °C | 86 kt | 18 h 25 min | 3:04 pm MDT (21:04 UTC) |
| 34,000 ft FL340 | 270° at 44 kt | +47 kt | -39 °C | 73 kt | 21 h 42 min | 6:21 pm MDT (00:21 UTC) |
| 39,000 ft FL390 | 270° at 46 kt | +49 kt | -48 °C | 71 kt | 22 h 19 min | 6:58 pm MDT (00:58 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| EKN | used from 0 nm out; 88 nm from the line | 330/21 12° | 330/25 7° | 350/22 2° | 330/24 -10° | 310/27 -21° | 320/33 -35° | 290/31 -39° | 290/34 -47° | |
| AGC | used from 149 nm out; 69 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° |
| CMH | used from 199 nm out; 35 nm from the line | 330/15 | 340/22 14° | 340/24 9° | 340/23 4° | 340/35 -9° | 340/49 -20° | 340/58 -37° | 330/70 -42° | 340/55 -47° |
| FWA | used from 349 nm out; 41 nm from the line | 300/17 | 320/20 16° | 330/20 10° | 340/15 3° | 310/27 -8° | 320/37 -20° | 330/52 -36° | 330/65 -43° | 330/60 -50° |
| IND | used from 399 nm out; 44 nm from the line | 290/16 | 310/20 16° | 320/21 10° | 330/13 3° | 300/25 -7° | 320/32 -19° | 330/46 -34° | 320/61 -43° | 320/63 -50° |
| JOT | used from 448 nm out; 64 nm from the line | 250/23 | 270/22 15° | 250/16 10° | 240/9 4° | 280/22 -7° | 280/29 -19° | 300/29 -34° | 290/50 -43° | 300/64 -52° |
| SPI | used from 548 nm out; 58 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° |
| BRL | used from 598 nm out; 18 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° |
| DSM | used from 697 nm out; 43 nm from the line | 230/40 | 250/33 17° | 250/18 12° | 240/17 5° | 260/28 -8° | 270/34 -19° | 260/41 -33° | 260/55 -41° | 270/62 -51° |
| OMA | used from 797 nm out; 35 nm from the line | 220/47 | 240/33 19° | 250/18 11° | 230/17 6° | 260/29 -8° | 250/33 -19° | 250/51 -33° | 260/61 -40° | 270/62 -49° |
| GRI | used from 897 nm out; 48 nm from the line | 230/35 21° | 230/23 13° | 220/20 7° | 240/25 -8° | 240/37 -20° | 250/49 -33° | 260/57 -38° | 260/58 -47° | |
| BFF | used from 1096 nm out; 88 nm from the line | 180/28 | 220/33 15° | 210/31 7° | 230/32 -9° | 220/41 -21° | 220/40 -33° | 240/47 -36° | 250/54 -46° | |
| DEN | used from 1295 nm out; 106 nm from the line | 240/21 14° | 250/44 6° | 220/49 -8° | 220/49 -21° | 230/54 -30° | 240/57 -35° | 240/49 -45° | ||
| RKS | used from 1345 nm out; 85 nm from the line | 200/41 | 220/44 1° | 220/35 -11° | 220/46 -24° | 210/53 -27° | 220/62 -35° | 230/61 -44° | ||
| SLC | used from 1495 nm out; 65 nm from the line | 200/5 | 230/8 2° | 220/20 -2° | 210/40 -12° | 190/53 -25° | 210/62 -30° | 220/69 -34° | 220/64 -43° |
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 |
|---|---|---|---|---|---|---|---|
| IAD Washington, DC | departure | IFR Sky: overcast at 500 feet | from the north (350°) at 8 knots | 10+ mi | 500 ft | 312 ft | 9:52 pm EDT (01:52 UTC) |
| CKB Clarksburg, WV | 130 nm out, 11 nm south of the line, tower | marginal VFR Sky: a few clouds at 700 feet, a broken layer at 1,000 feet, overcast at 2,400 feet | from the north (350°) at 4 knots | 10+ mi | 1,000 ft | 1,223 ft | 02:15 UTC |
| CMH Columbus, OH | 259 nm out, 3 nm north of the line, tower | IFR Sky: overcast at 800 feet | from the northwest (310°) at 6 knots | 9 mi | 800 ft | 815 ft | 01:51 UTC |
| MIE Muncie, IN | 379 nm out, 5 nm southeast of the line, tower | VFR Weather: mist | calm | 6 mi | none | 937 ft | 01:53 UTC |
| PIA Peoria, IL | 578 nm out, 10 nm south of the line, tower | VFR | calm | 10+ mi | none | 660 ft | 01:54 UTC |
| DSM Des Moines, IA | 757 nm out, 25 nm north of the line, tower | VFR Sky: a broken layer at 25,000 feet | from the south (180°) at 11 knots | 10+ mi | 25,000 ft | 957 ft | 01:54 UTC |
| OMA Omaha, NE | 857 nm out, 4 nm north of the line, tower | VFR Sky: a broken layer at 25,000 feet | from the south-southeast (160°) at 11 knots | 10+ mi | 25,000 ft | 984 ft | 01:52 UTC |
| GRI Grand Island, NE | 966 nm out, 21 nm south of the line, tower | VFR | from the south (170°) at 11 knots | 10+ mi | none | 1,847 ft | 01:53 UTC |
| CYS Cheyenne, WY | 1255 nm out, 7 nm southwest of the line, tower | VFR | from the east-southeast (120°) at 11 knots | 10+ mi | none | 6,159 ft | 01:53 UTC |
| LAR Laramie, WY | 1295 nm out, 5 nm northwest of the line | VFR Sky: scattered clouds at 9,000 feet, a broken layer at 11,000 feet | from the south-southeast (150°) at 18 knots, gusting to 25 | 10+ mi | 11,000 ft | 7,283 ft | 01:53 UTC |
| HCR Heber, UT | 1564 nm out, 22 nm south of the line | VFR Sky: scattered clouds at 2,600 feet, a broken layer at 3,600 feet, overcast at 6,000 feet Weather: light rain, mist | from the west-southwest (240°) at 10 knots | 6 mi | 3,600 ft | 5,636 ft | 02:35 UTC |
| SLC Salt Lake City, UT | destination | VFR Sky: a few clouds at 800 feet, a broken layer at 5,000 feet, overcast at 8,000 feet Weather: light rain | from the south (170°) at 6 knots | 10+ mi | 5,000 ft | 4,230 ft | 8:30 pm MDT (02:30 UTC) |
The highest airport on this list sits at 7,283 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At SLC when you get there the forecast at the estimated arrival, 11:53 am MDT (17:53 UTC)
Wind from the south at 11 knots, visibility more than 6 miles, light rain showers, scattered clouds at 2,000 feet, a broken layer at 5,000 feet VFR
The whole forecast for SLC
- From Sun 8:00 pm MDT (02:00 UTC): wind from the south-southeast at 8 knots, visibility more than 6 miles, light rain, scattered clouds at 2,000 feet, a broken layer at 5,000 feet
- From Mon 2:00 am MDT (08:00 UTC): wind from the south at 9 knots, visibility more than 6 miles, scattered clouds at 4,000 feet, a broken layer at 8,000 feet
- 30% chance between Mon 2:00 am MDT (08:00 UTC) and 6:00 am MDT (12:00 UTC): wind variable at 10 knots, gusting to 25, light rain showers, a broken layer at 4,000 feet
- From Mon 6:00 am MDT (12:00 UTC): wind from the south at 11 knots, visibility more than 6 miles, light rain showers, scattered clouds at 2,000 feet, a broken layer at 5,000 feet
- From Mon 3:00 pm MDT (21:00 UTC): wind from the northwest at 11 knots, visibility more than 6 miles, light rain showers, scattered clouds at 2,000 feet, a broken layer at 5,000 feet
The forecast for IAD, the departure
- From Sun 8:00 pm EDT (00:00 UTC): wind from the north at 7 knots, visibility 4 miles, light rain showers, mist, overcast at 700 feet
- From Sun 10:00 pm EDT (02:00 UTC): wind from the north-northwest at 6 knots, visibility 2 miles, rain showers, mist, overcast at 400 feet
- From Mon 4:00 am EDT (08:00 UTC): wind from the north-northwest at 10 knots, gusting to 18, visibility 4 miles, light rain showers, mist, overcast at 600 feet
- From Mon 6:00 am EDT (10:00 UTC): wind from the north-northwest at 11 knots, gusting to 19, visibility more than 6 miles, overcast at 1,400 feet
- From Mon 12:00 pm EDT (16:00 UTC): wind from the north-northwest at 13 knots, gusting to 21, visibility more than 6 miles, overcast at 2,100 feet
- From Mon 2:00 pm EDT (18:00 UTC): wind from the north-northwest at 10 knots, gusting to 17, visibility more than 6 miles, a broken layer at 4,000 feet
- From Mon 7:00 pm EDT (23:00 UTC): wind from the northwest at 6 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
Temporary flight restrictions on the line or within 25 nm of it
- 4/9383 WASHINGTON, DC., USA 8 nm from the route, at the departure end · security · ZDC
- 6/8600 Sterling, VA, Monday, October 12, 2026 through Monday, October 12, 2026 Local 4 nm from the route, at the departure end · a VIP movement · today · ZDC
Daylight
Sunset at IAD 6:36 pm EDT (22:36 UTC), at SLC 6:52 pm MDT (00:52 UTC) (civil twilight ends 7:19 pm MDT (01:19 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: Washington Dulles International, Salt Lake City International.
