Plan a flight · Sun 6:30 pm PDT (01:30 UTC)

Chehalis-Centralia Airport to Roberts Fld/Redmond Municipal CLS → RDM

165 nautical miles (189 statute miles) southeast on a straight line, true course 151°, about 135° magnetic at the departure end (variation 16E). At 120 knots that is 53 min at the quickest height in today's winds (24,000 ft, a 66-knot tailwind), arriving about 7:23 pm PDT (02:23 UTC), after sunset at the destination. Right now CLS is VFR, wind variable at 4 knots; RDM is VFR, wind from the north (350°) at 8 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

AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 25,000 ft to 39,000 ft, from 5:00 pm PDT (00:00 UTC). Over the first 29 nm of the route.
AIRMET ZULU 2C: moderate icing up to 14,000 ft, from 5:00 pm PDT (00:00 UTC). Over the last 29 nm of the route.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist), from 5:00 pm PDT (00:00 UTC). Over the last 10 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 CLS.

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

B739 at 10,000 ft, 39 nm west, 6:19 pm PDT (01:19 UTC): moderate rime icing from 10,000 ft to 12,000 ft, -12 °C. 48 nm along the route, 39 nm west of the line.
as filed, and in English
```
PDX UA /OV 30W PDX/TM 0119/FL100/TP B739/TA M12/IC MOD RIME 120-100
```
Report
a routine report filed through PDX
Where
30W pdx
Time
01:19 UTC
Height
at 10,000 ft
Aircraft
B739
Temperature
−12 °C
Icing
moderate rime from 12,000 ft to 10,000 ft
C182 at 8,000 ft, 4 nm northwest, 3:52 pm PDT (22:52 UTC): light rime icing, -2 °C. 68 nm along the route, 4 nm northwest of the line.
as filed, and in English
```
PDX UA /OV PDX040017/TM 2252/FL080/TP C182/TA M02/IC LGT RIME
```
Report
a routine report filed through PDX
Where
17 nm northeast (040°) of PDX
Time
22:52 UTC
Height
at 8,000 ft
Aircraft
C182
Temperature
−2 °C
Icing
light rime
B738 at 11,000 ft, 0 nm northwest, 6:19 pm PDT (01:19 UTC): light rime icing, remarks: during the descent runway 5. At the destination end, 0 nm northwest of the line.
as filed, and in English
```
RDM UA /OV RDM/TM 0119/FL110/TP B738/TA UNKN/IC LGT RIME/RM DURD RWY 5
```
Report
a routine report filed through RDM
Where
over RDM
Time
01:19 UTC
Height
at 11,000 ft
Aircraft
B738
Temperature
UNKN
Icing
light rime
Remarks
during the descent runway 5
E75L at 11,000 ft, 0 nm northwest, 6:16 pm PDT (01:16 UTC): light rime icing, remarks: during the descent runway 29. At the destination end, 0 nm northwest of the line.
as filed, and in English
```
RDM UA /OV RDM/TM 0116/FL110/TP E75L/TA UNKN/IC LGT RIME/RM DURD RWY 29
```
Report
a routine report filed through RDM
Where
over RDM
Time
01:16 UTC
Height
at 11,000 ft
Aircraft
E75L
Temperature
UNKN
Icing
light rime
Remarks
during the descent runway 29
E75L at 11,000 ft, 9 nm southeast, 5:36 pm PDT (00:36 UTC): trace to light rime icing from 10,500 ft to 11,500 ft, -8 °C, remarks: durc-zse. At the destination end, 9 nm southeast of the line.
as filed, and in English
```
RDM UA /OV DSD090015/TM 0036/FL110/TP E75L/TA M08/IC TRACE-LGT RIME 105-115/RM DURC-ZSE
```
Report
a routine report filed through RDM
Where
15 nm east (090°) of DSD
Time
00:36 UTC
Height
at 11,000 ft
Aircraft
E75L
Temperature
−8 °C
Icing
trace-lgt rime from 10,500 ft to 11,500 ft
Remarks
durc-zse
E175 at 6,500 ft, 0 nm northwest, 5:28 pm PDT (00:28 UTC): a broken layer above 6,500 ft. At the destination end, 0 nm northwest of the line.
as filed, and in English
```
RDM UA /OV RDM/TM 0028/FL065/TP E175/SK BKN065-TOPSUNKN
```
Report
a routine report filed through RDM
Where
over RDM
Time
00:28 UTC
Height
at 6,500 ft
Aircraft
E175
Sky
a broken layer from 6,500 ft, tops unknown
E75L at 9,500 ft, 0 nm northwest, 4:07 pm PDT (23:07 UTC): light rime icing from 7,000 ft to 9,500 ft, a broken layer above 7,300 ft, -2 °C, remarks: during the descent runway 5. At the destination end, 0 nm northwest of the line.
as filed, and in English
```
RDM UA /OV RDM/TM 2307/FL095/TP E75L/SK BKN073-TOPSUNKN/TA M2/IC LGT RIME 095-070/RM DURD RWY 5
```
Report
a routine report filed through RDM
Where
over RDM
Time
23:07 UTC
Height
at 9,500 ft
Aircraft
E75L
Sky
a broken layer from 7,300 ft, tops unknown
Temperature
−2 °C
Icing
light rime from 9,500 ft to 7,000 ft
Remarks
during the descent runway 5
E75L at 9,000 ft, 13 nm southwest, 4:05 pm PDT (23:05 UTC): light rime icing, -6 °C, remarks: zse. At the destination end, 13 nm southwest of the line.
as filed, and in English
```
RDM UA /OV DSD155012/TM 2305/FL090/TP E75L/TA M06/IC LGT RIME/RM ZSE
```
Report
a routine report filed through RDM
Where
12 nm southeast (155°) of DSD
Time
23:05 UTC
Height
at 9,000 ft
Aircraft
E75L
Temperature
−6 °C
Icing
light rime
Remarks
zse

Winds aloft along the route, and the time en route the forecast for use 20:00–03:00 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 2 forecast points nearest it (PDX, RDM). A plus sign is a headwind, a minus sign a tailwind.

Height	Average wind	Head- or tailwind	Temperature	Ground speed	Time en route	Arrival
3,500 ft	340° at 8 kt	−8 kt		128 kt	1 h 17 min	7:47 pm PDT (02:47 UTC)
5,500 ft	360° at 13 kt	−11 kt	-2 °C	131 kt	1 h 16 min	7:46 pm PDT (02:46 UTC)
7,500 ft	020° at 17 kt	−10 kt	-4 °C	130 kt	1 h 16 min	7:46 pm PDT (02:46 UTC)
9,500 ft	030° at 22 kt	−10 kt	-8 °C	130 kt	1 h 16 min	7:46 pm PDT (02:46 UTC)
11,500 ft	030° at 24 kt	−13 kt	-11 °C	133 kt	1 h 14 min	7:44 pm PDT (02:44 UTC)
13,500 ft	020° at 32 kt	−20 kt	-14 °C	140 kt	1 h 11 min	7:41 pm PDT (02:41 UTC)
15,500 ft	020° at 43 kt	−28 kt	-17 °C	148 kt	1 h 07 min	7:37 pm PDT (02:37 UTC)
17,500 ft	020° at 54 kt	−36 kt	-19 °C	156 kt	1 h 03 min	7:33 pm PDT (02:33 UTC)
18,000 ft FL180	020° at 57 kt	−38 kt	-20 °C	158 kt	1 h 03 min	7:33 pm PDT (02:33 UTC)
24,000 ft FL240	010° at 84 kt	−66 kt	-26 °C	186 kt	53 min	7:23 pm PDT (02:23 UTC)
30,000 ft FL300	010° at 73 kt	−59 kt	-37 °C	179 kt	55 min	7:25 pm PDT (02:25 UTC)
34,000 ft FL340	350° at 49 kt	−45 kt	-38 °C	165 kt	1 h	7:30 pm PDT (02:30 UTC)
39,000 ft FL390	340° at 32 kt	−31 kt	-42 °C	151 kt	1 h 06 min	7:36 pm PDT (02:36 UTC)

Based on data from the 11th at 18:00 UTC; valid on the 12th at 00:00 UTC for use 20:00 to 03:00 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
PDX	used from 0 nm out; 44 nm from the line	330/7	360/13 0°	040/22 -6°	030/23 -12°	020/64 -18°	010/93 -25°	010/91 -39°	360/62 -40°	350/41 -43°
RDM	used from 97 nm out; 44 nm from the line		010/15 -2°	030/21 -8°	020/26 -12°	020/46 -22°	010/72 -27°	360/47 -34°	340/31 -35°	320/20 -40°

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
CLS Chehalis, WA	departure	VFR	variable at 4 knots	10+ mi	none	177 ft	3:15 pm PDT (22:15 UTC)
KLS Kelso, WA	29 nm out, 13 nm southwest of the line	VFR	from the north-northwest (330°) at 6 knots	10+ mi	none	20 ft	00:56 UTC
TTD Portland, OR	68 nm out, 11 nm southwest of the line, tower	VFR Sky: a broken layer at 7,500 feet	from the east (090°) at 5 knots	10+ mi	7,500 ft	38 ft	00:53 UTC
RDM Redmond, OR	destination	VFR Sky: overcast at 6,500 feet	from the north (350°) at 8 knots	10+ mi	6,500 ft	3,081 ft	5:56 pm PDT (00:56 UTC)

The highest airport on this list sits at 3,081 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At RDM when you get there the forecast at the estimated arrival, 7:23 pm PDT (02:23 UTC)

Wind light and variable, visibility more than 6 miles, clear skies VFR

The whole forecast for RDM

From Sun 5:00 pm PDT (00:00 UTC): wind from the north at 10 knots, gusting to 18, visibility more than 6 miles, scattered clouds at 3,000 feet, a broken layer at 3,500 feet and more above
From Sun 7:00 pm PDT (02:00 UTC): wind light and variable, visibility more than 6 miles, clear skies
From Mon 12:00 pm PDT (19:00 UTC): wind from the north at 8 knots, visibility more than 6 miles, clear skies

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 CLS 6:30 pm PDT (01:30 UTC), at RDM 6:25 pm PDT (01:25 UTC) (civil twilight ends 6:54 pm PDT (01:54 UTC)). At 120 knots the arrival at RDM is after sunset there (6:27 pm PDT (01:27 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 Northwest · 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: Chehalis-Centralia Airport, Roberts Fld/Redmond Municipal.