Plan a flight · Mon 2:03 am PDT (09:03 UTC)

MC Clellan Airfield to Washington Dulles International MCC → IAD

2,035 nautical miles (2,342 statute miles) east on a straight line, true course 075°, about 058° magnetic at the departure end (variation 17E). At 120 knots that is 12 h 07 min at the quickest height in today's winds (34,000 ft, a 48-knot tailwind), arriving about 5:10 pm EDT (21:10 UTC). Right now MCC is VFR, wind from the southeast (130°) at 3 knots; IAD is marginal VFR, wind from the north-northwest (330°) at 11 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 W17W: thunderstorms (a convective SIGMET) up to 30,000 ft, moving from the southwest at 20 knots, until 2:55 am PDT (09:55 UTC). Over the route from 299 to 369 nm out.

as issued

WSUS33 KKCI 120755
MKCW WST 120755
CONVECTIVE SIGMET 17W
VALID UNTIL 0955Z
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 130 nm of the route.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 170 to 698 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 190 to 718 nm out.
AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the route from 279 to 609 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 459 to 808 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 559 to 778 nm out.
AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Over the route from 619 to 778 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 918 to 1407 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 439 nm of the route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the route from 1856 to 1996 nm out.
AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 6,000 ft. Over the last 110 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 MCC.

Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first

A35K at 32,000 ft, 49 nm southwest, 1:39 am PDT (08:39 UTC): moderate chop turbulence, remarks: fdcs zoa. At the departure end, 49 nm southwest 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
B737 at 18,000 ft, 11 nm southeast, 12:24 am PDT (07:24 UTC): moderate turbulence, remarks: FL180-130. 758 nm along the route, 11 nm southeast of the line.
as filed, and in English
```
DEN UA /OV DEN330050/TM 0724/FL180/TP B737/TB MOD/RM FL180-130
```
Report
a routine report filed through DEN
Where
50 nm northwest (330°) of DEN
Time
07:24 UTC
Height
at 18,000 ft
Aircraft
B737
Turbulence
moderate
Remarks
FL180-130
B739 at 35,000 ft, 31 nm north, 12:05 am PDT (07:05 UTC): no turbulence. 1537 nm along the route, 31 nm north of the line.
as filed, and in English
```
TIP UA /OV RBS010023/TM 0705/FL350/TP B739/TB NEG
```
Report
a routine report filed through TIP
Where
23 nm north (010°) of RBS
Time
07:05 UTC
Height
at 35,000 ft
Aircraft
B739
Turbulence
none
A21N at 33,000 ft, 18 nm northeast, 1:07 am PDT (08:07 UTC): light chop turbulence. 1716 nm along the route, 18 nm northeast of the line.
as filed, and in English
```
DAY UA /OV ROD/TM 0807/FL330/TP A21N/TB OCNL LT CHOP
```
Report
a routine report filed through DAY
Where
over ROD
Time
08:07 UTC
Height
at 33,000 ft
Aircraft
A21N
Turbulence
occasional lt chop
B737 at 39,000 ft, 21 nm north, 1:40 am PDT (08:40 UTC): light chop turbulence. 1786 nm along the route, 21 nm north of the line.
as filed, and in English
```
CMH UA /OV APE/TM 0840/FL390/TP B737/TB CONS LGT CHOP 390 NEG 350-330
```
Report
a routine report filed through CMH
Where
over APE
Time
08:40 UTC
Height
at 39,000 ft
Aircraft
B737
Turbulence
continuous light chop at 39,000 ft no from 35,000 ft to 33,000 ft
B737 at 800 ft, 39 nm east, 12:30 am PDT (07:30 UTC): remarks: bases 800 ft. At the destination end, 39 nm east of the line.
as filed, and in English
```
BWI UA /OV BWI/TM 0730/FL008/TP B737/RM BASES 008
```
Report
a routine report filed through BWI
Where
over BWI
Time
07:30 UTC
Height
at 800 ft
Aircraft
B737
Remarks
bases 800 ft

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 19 forecast points nearest it (SAC, RNO, BAM, ELY, SLC, RKS, DEN, BFF, GLD, GRI, OMA, DSM, BRL, SPI, JOT, IND, FWA, CMH, EKN). A plus sign is a headwind, a minus sign a tailwind.

Height	Average wind	Head- or tailwind	Temperature	Ground speed	Time en route	Arrival
5,500 ft	260° at 18 kt	−18 kt	17 °C	138 kt	14 h 45 min	7:48 pm EDT (23:48 UTC)
7,500 ft	260° at 16 kt	−17 kt	11 °C	137 kt	14 h 51 min	7:54 pm EDT (23:54 UTC)
9,500 ft	260° at 16 kt	−17 kt	7 °C	137 kt	14 h 51 min	7:54 pm EDT (23:54 UTC)
11,500 ft	250° at 19 kt	−19 kt	2 °C	139 kt	14 h 38 min	7:41 pm EDT (23:41 UTC)
13,500 ft	250° at 20 kt	−21 kt	-2 °C	141 kt	14 h 26 min	7:29 pm EDT (23:29 UTC)
15,500 ft	250° at 21 kt	−22 kt	-6 °C	142 kt	14 h 20 min	7:23 pm EDT (23:23 UTC)
17,500 ft	250° at 23 kt	−24 kt	-10 °C	144 kt	14 h 08 min	7:11 pm EDT (23:11 UTC)
18,000 ft FL180	250° at 23 kt	−24 kt	-11 °C	144 kt	14 h 08 min	7:11 pm EDT (23:11 UTC)
24,000 ft FL240	250° at 30 kt	−31 kt	-22 °C	151 kt	13 h 29 min	6:32 pm EDT (22:32 UTC)
30,000 ft FL300	260° at 38 kt	−40 kt	-32 °C	160 kt	12 h 43 min	5:46 pm EDT (21:46 UTC)
34,000 ft FL340	260° at 45 kt	−48 kt	-38 °C	168 kt	12 h 07 min	5:10 pm EDT (21:10 UTC)
39,000 ft FL390	260° at 44 kt	−47 kt	-47 °C	167 kt	12 h 11 min	5:14 pm EDT (21:14 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
SAC	used from 0 nm out; 32 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 50 nm out; 32 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 150 nm out; 86 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 249 nm out; 44 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 399 nm out; 46 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 549 nm out; 69 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 698 nm out; 77 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 798 nm out; 63 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°
GLD	used from 898 nm out; 92 nm from the line		260/37	260/25 14°	250/27 8°	230/36 -8°	230/49 -21°	250/71 -30°	260/82 -36°	250/73 -48°
GRI	used from 948 nm out; 98 nm from the line		230/39 23°	230/32 15°	210/29 7°	230/31 -8°	230/43 -21°	250/52 -31°	260/59 -35°	260/59 -46°
OMA	used from 1147 nm out; 25 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°
DSM	used from 1247 nm out; 43 nm from the line	250/47	260/25 20°	240/19 11°	240/31 5°	250/26 -9°	260/38 -20°	260/47 -34°	270/58 -37°	270/61 -47°
BRL	used from 1347 nm out; 26 nm from the line	250/32	250/19 17°	260/15 11°	270/16 3°	290/23 -7°	260/42 -20°	270/52 -34°	280/63 -39°	290/64 -48°
SPI	used from 1447 nm out; 44 nm from the line	260/28	250/22 15°	250/14 9°	260/20 6°	280/27 -7°	280/34 -19°	280/48 -32°	280/59 -41°	300/60 -49°
JOT	used from 1497 nm out; 64 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°
IND	used from 1547 nm out; 62 nm from the line	270/22	290/19 15°	270/19 8°	270/18 4°	290/28 -7°	280/35 -20°	270/37 -34°	300/51 -42°	300/61 -51°
FWA	used from 1646 nm out; 51 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°
CMH	used from 1696 nm out; 56 nm from the line	320/12	340/26 15°	340/22 9°	320/24 3°	320/32 -7°	320/36 -20°	330/42 -35°	320/59 -44°	320/57 -50°
EKN	used from 1846 nm out; 63 nm from the line		330/20 10°	350/29 7°	340/32 2°	340/44 -8°	350/50 -21°	350/63 -35°	340/69 -40°	330/42 -50°

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
MCC Sacramento, CA	departure	VFR	from the southeast (130°) at 3 knots	10+ mi	none	76 ft	1:55 am PDT (08:55 UTC)
TRK Truckee, CA	70 nm out, 24 nm north of the line, tower	VFR	from the south-southeast (150°) at 3 knots	10+ mi	none	5,904 ft	08:35 UTC
PVU Provo, UT	459 nm out, 2 nm northwest 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
FNL Fort Collins/Loveland, CO	768 nm out, 19 nm south of the line, tower	VFR	from the southeast (140°) at 3 knots	10+ mi	none	5,020 ft	08:56 UTC
GTE Gothenburg, NE	988 nm out, 1 nm west of the line	no report just now				2,558 ft
GRI Grand Island, NE	1068 nm out, 4 nm northeast of the line, tower	VFR	from the south (180°) at 14 knots	10+ mi	none	1,847 ft	08:53 UTC
FSW Fort Madison, IA	1387 nm out, 3 nm southeast of the line	VFR Sky: a few clouds at 11,000 feet	from the south-southeast (160°) at 7 knots	10+ mi	none	721 ft	08:55 UTC
BMI Bloomington/Normal, IL	1497 nm out, 3 nm southeast of the line, tower	VFR	from the south-southwest (210°) at 8 knots	10+ mi	none	871 ft	08:56 UTC
LCK Columbus, OH	1776 nm out, 2 nm south of the line, tower	marginal VFR Sky: overcast at 1,000 feet Weather: mist	from the west (270°) at 4 knots	5 mi	1,000 ft	743 ft	08:55 UTC
CKB Clarksburg, WV	1906 nm out, 8 nm south of the line, tower	IFR Sky: a broken layer at 700 feet, overcast at 1,100 feet Weather: light rain	from the west-northwest (300°) at 3 knots	8 mi	700 ft	1,223 ft	08:53 UTC
IAD Washington, DC	destination	marginal VFR Sky: a broken layer at 1,000 feet, a broken layer at 1,500 feet, overcast at 3,000 feet Weather: mist	from the north-northwest (330°) at 11 knots	6 mi	1,000 ft	312 ft	4:52 am EDT (08:52 UTC)

The highest airport on this list sits at 5,904 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At IAD when you get there the forecast at the estimated arrival, 5:10 pm EDT (21:10 UTC)

Wind from the northwest at 7 knots, visibility more than 6 miles, a broken layer at 3,500 feet VFR

The whole forecast for IAD

From Mon 2:00 am EDT (06:00 UTC): wind from the north-northwest at 12 knots, visibility 5 miles, light rain, mist, overcast at 600 feet
From Mon 8:00 am EDT (12:00 UTC): wind from the north-northwest at 10 knots, gusting to 18, visibility more than 6 miles, overcast at 1,000 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, scattered clouds at 1,500 feet, overcast at 2,500 feet
From Mon 2:00 pm EDT (18:00 UTC): wind from the north-northwest at 11 knots, gusting to 18, visibility more than 6 miles, scattered clouds at 2,500 feet, overcast at 3,500 feet
From Mon 5:00 pm EDT (21:00 UTC): wind from the northwest at 7 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 3 knots, visibility more than 6 miles, scattered clouds at 4,000 feet

The forecast for MCC, the departure

From Sun 11:00 pm PDT (06:00 UTC): wind from the south-southeast at 7 knots, visibility more than 6 miles, clear skies
From Mon 6:00 am PDT (13:00 UTC): wind light and variable, visibility more than 6 miles, a few clouds at 25,000 feet
From Mon 5:00 pm PDT (00:00 UTC): wind from the north-northwest at 6 knots, visibility more than 6 miles, clear skies

Temporary flight restrictions on the line or within 25 nm of it

6/3475 BEALE AFB, CA, Sunday, March 8, 2026 through Sunday, November 1, 2026 Local 18 nm from the route, at the departure end · security · until 1 November · ZOA
4/9383 WASHINGTON, DC., USA 8 nm from the route, at the destination end · security · ZDC
6/8600 Sterling, VA, Monday, October 12, 2026 through Monday, October 12, 2026 Local 4 nm from the route, at the destination end · a VIP movement · today · ZDC

Daylight

Sunset at MCC 6:30 pm PDT (01:30 UTC), at IAD 6:36 pm EDT (22:36 UTC) (civil twilight ends 7:02 pm EDT (23:02 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

Radar now, the Pacific Southwest · loop National Weather Service

Radar now, the southern Rockies · loop National Weather Service

Radar now, the northern Rockies · loop National Weather Service

Radar, the whole country · loop National Weather Service

Surface analysis now Weather Prediction Center

Forecast chart, 12 hours ahead Weather Prediction Center

Forecast chart, 24 hours ahead Weather Prediction Center

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: MC Clellan Airfield, Washington Dulles International.