Plan a flight · Sun 7:43 pm PDT (02:43 UTC)

Jacqueline Cochran Regional to Tacoma Narrows Airport TRM → TIW

869 nautical miles (1,000 statute miles) north on a straight line, true course 342°, about 329° magnetic at the departure end (variation 13E). At 120 knots that is 6 h 57 min at the quickest height in today's winds (39,000 ft, a 5-knot tailwind), arriving about 2:40 am PDT (09:40 UTC), after sunset at the destination. Right now TRM is VFR, wind from the northwest (320°) at 9 knots; TIW is VFR, wind from the north-northeast (020°) 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

SIGMET W10W: thunderstorms (a convective SIGMET) up to 30,000 ft, moving from the southwest at 20 knots, until 8:55 pm PDT (03:55 UTC). Over the route from 280 to 310 nm out.
as issued
```
WSUS33 KKCI 120155
MKCW WST 120155
CONVECTIVE SIGMET 10W
VALID UNTIL 0355Z
NV
FROM 70SW TWF-40NNW BVL-40SW ELY-30ESE OAL-40WNW OAL-70SW TWF
AREA TS MOV FROM 23020KT. TOPS TO FL300.
```
AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the first 170 nm of the route.
AIRMET SIERRA 6E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 10 to 40 nm out.
AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the route from 40 to 390 nm out.
AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 15,000 ft. Over the route from 180 to 330 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 360 to 360 nm out.
AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the last 320 nm of the route.
AIRMET ZULU 2C: moderate icing up to 16,000 ft. Over the route from 609 to 699 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 619 to 659 nm out.

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 TRM.

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

B38M at 14,000 ft, 27 nm west, 5:13 pm PDT (00:13 UTC): moderate turbulence, light rime icing, 8 °C. 50 nm along the route, 27 nm west of the line.
as filed, and in English
```
ONT UA /OV ONT053034/TM 0013/FL140/TP B38M/TA 08/TB MODERATE TURBULENCE/IC LIGHT RIME ICE 190 - 170
```
Report
a routine report filed through ONT
Where
34 nm northeast (053°) of ONT
Time
00:13 UTC
Height
at 14,000 ft
Aircraft
B38M
Temperature
8 °C
Turbulence
moderate turbulence
Icing
light rime ice at 19,000 ft at 17,000 ft
E75L climbing, 6 nm southwest, 7:36 pm PDT (02:36 UTC): light to moderate chop turbulence. At the departure end, 6 nm southwest of the line.
as filed, and in English
```
PSP UA /OV PSP347010/TM 0236/FLDURC/TP E75L/TB LT TO MOD CHOP IN CLIMB
```
Report
a routine report filed through PSP
Where
10 nm north (347°) of PSP
Time
02:36 UTC
Height
during the climb
Aircraft
E75L
Turbulence
lt to moderate chop in climb
E75L at 35,000 ft, 21 nm west, 6:18 pm PDT (01:18 UTC): light to moderate chop turbulence, remarks: zse. 569 nm along the route, 21 nm west of the line.
as filed, and in English
```
LKV UA /OV LKV/TM 0118/FL350/TP E75L/TB LGT OCNL MOD CHOP/RM ZSE
```
Report
a routine report filed through LKV
Where
over LKV
Time
01:18 UTC
Height
at 35,000 ft
Aircraft
E75L
Turbulence
light occasional moderate chop
Remarks
zse
E75L at 11,000 ft, 5 nm west, 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. 669 nm along the route, 5 nm west 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
B738 at 11,000 ft, 10 nm southwest, 6:19 pm PDT (01:19 UTC): light rime icing, remarks: during the descent runway 5. 679 nm along the route, 10 nm southwest 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, 10 nm southwest, 6:16 pm PDT (01:16 UTC): light rime icing, remarks: during the descent runway 29. 679 nm along the route, 10 nm southwest 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
E175 at 6,500 ft, 10 nm southwest, 5:28 pm PDT (00:28 UTC): a broken layer above 6,500 ft. 679 nm along the route, 10 nm southwest 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
A321 at 13,500 ft, 29 nm northeast, 6:54 pm PDT (01:54 UTC): remarks: zse. 829 nm along the route, 29 nm northeast of the line.
as filed, and in English
```
SEA UA /OV SEA120045/TM 0154/FL135/TP A321/SK TOP130/RM ZSE
```
Report
a routine report filed through SEA
Where
45 nm southeast (120°) of SEA
Time
01:54 UTC
Height
at 13,500 ft
Aircraft
A321
Sky
TOP130
Remarks
zse
PC12 at 15,000 ft, 29 nm northeast, 5:42 pm PDT (00:42 UTC): remarks: zse. 829 nm along the route, 29 nm northeast of the line.
as filed, and in English
```
YKM UA /OV YKM270050/TM 0042/FL150/TP PC12/SK TOP130/RM -ZSE
```
Report
a routine report filed through YKM
Where
50 nm west (270°) of YKM
Time
00:42 UTC
Height
at 15,000 ft
Aircraft
PC12
Sky
TOP130
Remarks
zse
PC12 at 13,000 ft, 29 nm northeast, 5:42 pm PDT (00:42 UTC): remarks: zse. 829 nm along the route, 29 nm northeast of the line.
as filed, and in English
```
YKM UA /OV YKM270050/TM 0042/FL130/TP PC12/SK TOP130/RM -ZSE
```
Report
a routine report filed through YKM
Where
50 nm west (270°) of YKM
Time
00:42 UTC
Height
at 13,000 ft
Aircraft
PC12
Sky
TOP130
Remarks
zse

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 8 forecast points nearest it (ONT, WJF, BIH, RNO, LKV, RDM, PDX, SEA). 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	060° at 3 kt	+1 kt	1 °C	119 kt	7 h 18 min	3:01 am PDT (10:01 UTC)
6,500 ft	050° at 3 kt	+1 kt	1 °C	119 kt	7 h 18 min	3:01 am PDT (10:01 UTC)
8,500 ft	360° at 4 kt	+4 kt	-4 °C	116 kt	7 h 29 min	3:12 am PDT (10:12 UTC)
10,500 ft	330° at 3 kt	+3 kt	-6 °C	117 kt	7 h 26 min	3:09 am PDT (10:09 UTC)
12,500 ft	300° at 3 kt	+2 kt	-9 °C	118 kt	7 h 22 min	3:05 am PDT (10:05 UTC)
14,500 ft	310° at 5 kt	+4 kt	-12 °C	116 kt	7 h 29 min	3:12 am PDT (10:12 UTC)
16,500 ft	320° at 8 kt	+6 kt	-15 °C	114 kt	7 h 37 min	3:20 am PDT (10:20 UTC)
18,000 ft FL180	320° at 9 kt	+8 kt	-17 °C	112 kt	7 h 46 min	3:29 am PDT (10:29 UTC)
24,000 ft FL240	330° at 22 kt	+21 kt	-24 °C	99 kt	8 h 47 min	4:30 am PDT (11:30 UTC)
30,000 ft FL300	310° at 22 kt	+18 kt	-32 °C	102 kt	8 h 31 min	4:14 am PDT (11:14 UTC)
34,000 ft FL340	270° at 20 kt	+7 kt	-37 °C	113 kt	7 h 41 min	3:24 am PDT (10:24 UTC)
39,000 ft FL390	240° at 28 kt	−5 kt	-42 °C	125 kt	6 h 57 min	2:40 am PDT (09:40 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
ONT	used from 0 nm out; 64 nm from the line	190/8	190/19 6°	210/23 4°	210/29 -3°	210/47 -13°	210/49 -19°	220/47 -30°	220/50 -36°	220/55 -43°
WJF	used from 100 nm out; 82 nm from the line		200/28 6°	210/28 3°	210/29 -4°	210/28 -14°	220/41 -20°	220/47 -29°	220/46 -37°	220/53 -44°
BIH	used from 150 nm out; 79 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 300 nm out; 83 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°
LKV	used from 450 nm out; 79 nm from the line			010/8 -8°	350/13 -11°	340/21 -21°	360/60 -26°	350/37 -32°	310/26 -35°	260/25 -39°
RDM	used from 599 nm out; 55 nm from the line		040/17 -1°	030/31 -8°	010/29 -12°	010/61 -19°	360/95 -25°	360/82 -36°	360/40 -37°	310/19 -40°
PDX	used from 749 nm out; 38 nm from the line	L/V	030/7 1°	020/12 -6°	020/29 -9°	010/69 -16°	010/81 -25°	360/83 -40°	360/67 -46°	320/29 -42°
SEA	used from 799 nm out; 53 nm from the line	050/7	050/11 1°	050/12 -5°	030/31 -7°	010/61 -15°	010/69 -26°	360/73 -40°	360/62 -47°	330/21 -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
TRM Palm Springs, CA	departure	VFR	from the northwest (320°) at 9 knots	10+ mi	none	-114 ft	6:52 pm PDT (01:52 UTC)
PSP Palm Springs, CA	20 nm out, 13 nm southwest of the line, tower	VFR	from the north-northwest (330°) at 9 knots	10+ mi	none	476 ft	01:53 UTC
GAB Gabbs, NV	330 nm out, 17 nm east of the line	no report just now				4,699 ft
FLX Fallon, NV	370 nm out, 8 nm west of the line	no report just now				3,966 ft
LKV Lakeview, OR	549 nm out, 24 nm west of the line	VFR	from the north (360°) at 12 knots, gusting to 19	10+ mi	none	4,734 ft	01:53 UTC
RDM Redmond, OR	679 nm out, 10 nm southwest of the line, tower	VFR Sky: a broken layer at 5,500 feet, overcast at 7,000 feet	from the northwest (320°) at 4 knots	10+ mi	5,500 ft	3,081 ft	01:56 UTC
CZK Cascade Locks, OR	769 nm out, 8 nm west of the line	no report just now				151 ft
TIW Tacoma, WA	destination	VFR	from the north-northeast (020°) at 8 knots	10+ mi	none	294 ft	6:53 pm PDT (01:53 UTC)

The highest airport on this list sits at 4,734 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At TIW when you get there the forecast at the estimated arrival, 2:40 am PDT (09:40 UTC)

TIW has no terminal forecast; use the nearest airport that does.

The forecast for TRM, the departure

From Sun 5:00 pm PDT (00:00 UTC): wind from the northwest at 10 knots, visibility more than 6 miles, scattered clouds at 10,000 feet
From Mon 1:00 am PDT (08:00 UTC): wind light and variable, visibility more than 6 miles, a few clouds at 10,000 feet
From Mon 2:00 pm PDT (21:00 UTC): wind from the west at 12 knots, visibility more than 6 miles, a few clouds at 10,000 feet

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

6/8887 Indio, CA, Sunday, October 11, 2026 through Monday, October 12, 2026 Local 4 nm from the route, at the departure end · security · until 12 October · ZLA

Daylight

Sunset at TRM 6:14 pm PDT (01:14 UTC), at TIW 6:28 pm PDT (01:28 UTC) (civil twilight ends 6:59 pm PDT (01:59 UTC)). At 120 knots the arrival at TIW is before sunrise there (7:24 am PDT (14:24 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 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: Jacqueline Cochran Regional, Tacoma Narrows Airport.