Plan a flight · Sun 10:24 pm CDT (03:24 UTC)

Chicago/Rockford International to Stockton Metro Airport RFD → SCK

1,491 nautical miles (1,715 statute miles) west on a straight line, true course 271°, about 274° magnetic at the departure end (variation 3W). At 120 knots that is 13 h 56 min at the quickest height in today's winds (4,500 ft, a 13-knot headwind), arriving about 10:20 am PDT (17:20 UTC). Right now RFD is VFR, wind from the southeast (140°) at 4 knots; SCK is VFR, wind from the west (270°) at 7 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: 434 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 2C: thunderstorms (a convective SIGMET) up to 31,000 ft, moving from the southwest at 40 knots, until 11:55 pm CDT (04:55 UTC). Over the route from 716 to 745 nm out.
as issued
```
WSUS32 KKCI 120255
MKCC WST 120255
CONVECTIVE SIGMET 2C
VALID UNTIL 0455Z
NE CO WY
FROM 40SE CZI-30WNW BFF-30SSE LAR-70NW LAR-40SE CZI
AREA TS MOV FROM 22040KT. TOPS TO FL310.
```
SIGMET W12W: thunderstorms (a convective SIGMET) up to 31,000 ft, moving from the southwest at 20 knots, until 11:55 pm CDT (04:55 UTC). Over the route from 1193 to 1322 nm out.
as issued
```
WSUS33 KKCI 120255
MKCW WST 120255
CONVECTIVE SIGMET 12W
VALID UNTIL 0455Z
NV
FROM 40SSE TWF-10W ELY-30SE OAL-30W OAL-70WSW TWF-40SSE TWF
AREA TS MOV FROM 24020KT. TOPS TO FL310.
```
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 169 to 586 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 596 to 1053 nm out.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 656 to 1024 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 725 to 954 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 835 to 1292 nm out.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 845 to 1352 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 884 to 924 nm out.
AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 15,000 ft. Near the route, 1371 nm along the route.
AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the last 60 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 RFD.

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

CRJ2 at 19,000 ft, 20 nm south, 7:47 pm CDT (00:47 UTC): moderate chop turbulence, remarks: ZDVWC-13. 765 nm along the route, 20 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
S22T at 14,000 ft, 31 nm south, 8:23 pm CDT (01:23 UTC): moderate rime icing, -16 °C. 984 nm along the route, 31 nm south of the line.
as filed, and in English
```
PUC UA /OV PUC360015/TM 0123/FL140/TP S22T/TA M16/IC MOD RIME /ZLC
```
Report
a routine report filed through PUC
Where
15 nm north (360°) of PUC
Time
01:23 UTC
Height
at 14,000 ft
Aircraft
S22T
Temperature
−16 °C
Icing
moderate rime zlc
E75L at 22,000 ft, 25 nm south, 8:04 pm CDT (01:04 UTC): moderate turbulence. 994 nm along the route, 25 nm south of the line.
as filed, and in English
```
PUC UA /OV PUC320020/TM 0104/FL220/TP E75L/TB MOD /ZLC
```
Report
a routine report filed through PUC
Where
20 nm northwest (320°) of PUC
Time
01:04 UTC
Height
at 22,000 ft
Aircraft
E75L
Turbulence
moderate zlc
A321 at 32,000 ft, 14 nm south, 8:56 pm CDT (01:56 UTC): light turbulence, remarks: pocket continuous light turbulence. At the departure end, 14 nm south of the line.
as filed, and in English
```
RPJ UA /OV PLL/TM 0156/FL320/TP A321/TB CONS LGT/RM POCKET CONS LGT TB
```
Report
a routine report filed through RPJ
Where
over PLL
Time
01:56 UTC
Height
at 32,000 ft
Aircraft
A321
Turbulence
continuous light
Remarks
pocket continuous light turbulence
UAL2499 at 28,000 ft, 34 nm south, 9:15 pm CDT (02:15 UTC): light chop turbulence. 109 nm along the route, 34 nm south of the line.
as filed, and in English
```
ARP UAL2499 4138N 09137W 0215 F280 TB INTMT LGT CHOP IC
```
Report
a routine report filed through ARP
C56X at 13,000 ft, 10 nm north, 8:33 pm CDT (01:33 UTC): light chop turbulence, remarks: zdvwc. 745 nm along the route, 10 nm north of the line.
as filed, and in English
```
LAR UA /OV LAR/TM 0133/FL130/TP C56X/SK BASE160/TB OCNL CONS LGT CHOP/RM ZDVWC
```
Report
a routine report filed through LAR
Where
over LAR
Time
01:33 UTC
Height
at 13,000 ft
Aircraft
C56X
Sky
BASE160
Turbulence
occasional continuous light chop
Remarks
zdvwc
GLF6 at 45,000 ft, 45 nm south, 9:24 pm CDT (02:24 UTC): light chop turbulence, remarks: ZDVWC-03. 994 nm along the route, 45 nm south of the line.
as filed, and in English
```
PUC UA /OV PUC1130028/TM 0224/FL450/TP GLF6/TB CONS LGT CHOP/RM ZDVWC-03
```
Report
a routine report filed through PUC
Where
28 nm southeast (130°) of PUC1
Time
02:24 UTC
Height
at 45,000 ft
Aircraft
GLF6
Turbulence
continuous light chop
Remarks
ZDVWC-03
PRM1 at 21,000 ft, 14 nm south, 8:03 pm CDT (01:03 UTC): light rime icing, -15 °C. 1043 nm along the route, 14 nm south of the line.
as filed, and in English
```
PVU UA /OV FFU180025/TM 0103/FL210/TP PRM1/TA M15/IC LGT RIME /ZLC
```
Report
a routine report filed through PVU
Where
25 nm south (180°) of FFU
Time
01:03 UTC
Height
at 21,000 ft
Aircraft
PRM1
Temperature
−15 °C
Icing
light rime zlc
B737 at 16,000 ft, 39 nm north, 7:45 pm CDT (00:45 UTC): no turbulence, light rime icing from 13,000 ft to 17,000 ft, 8 °C, remarks: during the climb. 1043 nm along the route, 39 nm north of the line.
as filed, and in English
```
SLC UA /OV TCH230020/TM 0045/FL160/TP B737/TA 8/TB NEG/IC LT RIME 130-170/RM DURC
```
Report
a routine report filed through SLC
Where
20 nm southwest (230°) of TCH
Time
00:45 UTC
Height
at 16,000 ft
Aircraft
B737
Temperature
8 °C
Turbulence
none
Icing
lt rime from 13,000 ft to 17,000 ft
Remarks
during the climb
PC12 at 25,000 ft, 34 nm south, 8:35 pm CDT (01:35 UTC): light rime icing, -16 °C, remarks: during the descent zlc. 1073 nm along the route, 34 nm south of the line.
as filed, and in English
```
DTA UA /OV DTA360010/TM 0135/FL250/TP PC12/TA M16/IC LGT RIME /RM DURD /ZLC
```
Report
a routine report filed through DTA
Where
10 nm north (360°) of DTA
Time
01:35 UTC
Height
at 25,000 ft
Aircraft
PC12
Temperature
−16 °C
Icing
light rime
Remarks
during the descent zlc

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 12 forecast points nearest it (DBQ, DSM, OMA, ONL, BFF, DEN, RKS, SLC, ELY, BIH, RNO, SAC). 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	220° at 20 kt	+13 kt	20 °C	107 kt	13 h 56 min	10:20 am PDT (17:20 UTC)
6,500 ft	220° at 18 kt	+14 kt	16 °C	106 kt	14 h 04 min	10:28 am PDT (17:28 UTC)
8,500 ft	220° at 21 kt	+17 kt	9 °C	103 kt	14 h 29 min	10:53 am PDT (17:53 UTC)
10,500 ft	220° at 22 kt	+18 kt	5 °C	102 kt	14 h 37 min	11:01 am PDT (18:01 UTC)
12,500 ft	220° at 23 kt	+19 kt	1 °C	101 kt	14 h 46 min	11:10 am PDT (18:10 UTC)
14,500 ft	220° at 25 kt	+21 kt	-3 °C	99 kt	15 h 04 min	11:28 am PDT (18:28 UTC)
16,500 ft	220° at 27 kt	+23 kt	-8 °C	97 kt	15 h 22 min	11:46 am PDT (18:46 UTC)
18,000 ft FL180	230° at 29 kt	+25 kt	-11 °C	95 kt	15 h 42 min	12:06 pm PDT (19:06 UTC)
24,000 ft FL240	230° at 35 kt	+30 kt	-22 °C	90 kt	16 h 34 min	12:58 pm PDT (19:58 UTC)
30,000 ft FL300	230° at 44 kt	+38 kt	-31 °C	82 kt	18 h 11 min	2:35 pm PDT (21:35 UTC)
34,000 ft FL340	240° at 50 kt	+47 kt	-37 °C	73 kt	20 h 25 min	4:49 pm PDT (23:49 UTC)
39,000 ft FL390	250° at 52 kt	+52 kt	-46 °C	68 kt	21 h 56 min	6:20 pm PDT (01:20 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; 48 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°
DSM	used from 149 nm out; 48 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 248 nm out; 56 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°
ONL	used from 348 nm out; 62 nm from the line		210/31 20°	230/27 13°	230/18 7°	220/19 -8°	240/26 -20°	250/44 -35°	270/52 -39°	260/57 -47°
BFF	used from 547 nm out; 79 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 745 nm out; 103 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 795 nm out; 89 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 944 nm out; 71 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°
ELY	used from 1093 nm out; 63 nm from the line			200/39 3°	210/27 -2°	210/45 -15°	220/56 -24°	210/60 -28°	210/63 -34°	220/61 -43°
BIH	used from 1292 nm out; 93 nm from the line		L/V	240/7 1°	190/13 -3°	200/26 -16°	210/43 -26°	220/54 -28°	220/51 -35°	220/47 -43°
RNO	used from 1342 nm out; 73 nm from the line		010/9	320/10 -2°	210/23 -9°	210/34 -19°	220/36 -25°	230/31 -29°	230/41 -33°	230/38 -42°
SAC	used from 1441 nm out; 45 nm from the line	110/6	L/V 4°	010/11 -2°	350/11 -7°	340/24 -16°	360/44 -23°	330/24 -30°	270/21 -35°	230/23 -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
RFD Chicago/Rockford, IL	departure	VFR Sky: scattered clouds at 25,000 feet	from the southeast (140°) at 4 knots	10+ mi	none	742 ft	9:54 pm CDT (02:54 UTC)
DBQ Dubuque, IA	70 nm out, 12 nm north of the line, tower	VFR	from the south (180°) at 7 knots	10+ mi	none	1,076 ft	02:53 UTC
MIW Marshalltown, IA	169 nm out, 4 nm south of the line	VFR	from the south-southeast (160°) at 9 knots	10+ mi	none	974 ft	02:53 UTC
SUX Sioux City, IA	328 nm out, 22 nm north of the line, tower	VFR	from the north-northwest (340°) at 3 knots	10+ mi	none	1,098 ft	02:52 UTC
OKS Oshkosh, NE	596 nm out, 10 nm south of the line	no report just now				3,394 ft
CYS Cheyenne, WY	706 nm out, 8 nm south of the line, tower	VFR	from the east (090°) at 6 knots	10+ mi	none	6,159 ft	02:53 UTC
DWX Dixon, WY	825 nm out, 8 nm northwest of the line	VFR Sky: a broken layer at 7,500 feet, overcast at 9,000 feet	from the south-southeast (150°) at 13 knots, gusting to 23	10+ mi	7,500 ft	6,548 ft	03:15 UTC
PVU Provo, UT	1024 nm out, 3 nm northwest of the line, tower	VFR Sky: scattered clouds at 900 feet, scattered clouds at 4,800 feet, overcast at 6,500 feet Weather: light rain	from the east (100°) at 3 knots	10+ mi	6,500 ft	4,496 ft	03:18 UTC
ELY Ely, NV	1183 nm out, 14 nm southeast of the line	VFR Sky: scattered clouds at 4,100 feet, a broken layer at 5,000 feet, overcast at 6,000 feet Weather: light rain	from the south (170°) at 10 knots	10+ mi	5,000 ft	6,259 ft	02:53 UTC
GAB Gabbs, NV	1322 nm out, 8 nm northwest of the line	no report just now				4,699 ft
HTH Hawthorne, NV	1361 nm out, 4 nm south of the line	VFR Sky: a few clouds at 12,000 feet	from the north-northwest (340°) at 4 knots, gusting to 14	10+ mi	none	4,230 ft	03:15 UTC
SCK Stockton, CA	destination	VFR Sky: a broken layer at 9,000 feet	from the west (270°) at 7 knots	10+ mi	9,000 ft	32 ft	7:55 pm PDT (02:55 UTC)

The highest airport on this list sits at 6,548 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At SCK when you get there the forecast at the estimated arrival, 10:20 am PDT (17:20 UTC)

Wind light and variable, visibility more than 6 miles, scattered clouds at 10,000 feet VFR

The whole forecast for SCK

From Sun 5:00 pm PDT (00:00 UTC): wind from the west at 6 knots, visibility more than 6 miles, clear skies
From Mon 12:00 am PDT (07:00 UTC): wind light and variable, visibility more than 6 miles, scattered clouds at 10,000 feet
From Mon 12:00 pm PDT (19:00 UTC): wind from the west-northwest at 7 knots, visibility more than 6 miles, a few clouds at 25,000 feet

The forecast for RFD, the departure

From Sun 7:00 pm CDT (00:00 UTC): wind from the south at 5 knots, visibility more than 6 miles, clear skies
From Mon 12:00 pm CDT (17:00 UTC): wind from the south-southwest at 12 knots, gusting to 22, visibility more than 6 miles, scattered clouds at 20,000 feet
From Mon 6:00 pm CDT (23:00 UTC): wind from the south-southwest at 12 knots, visibility more than 6 miles, a few clouds at 12,000 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 RFD 6:19 pm CDT (23:19 UTC), at SCK 6:31 pm PDT (01:31 UTC) (civil twilight ends 6:58 pm PDT (01:58 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 upper Mississippi valley · loop National Weather Service

Radar now, the northern Rockies · loop National Weather Service

Radar now, the southern 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: Chicago/Rockford International, Stockton Metro Airport.