Plan a flight · Sun 10:26 pm EDT (02:26 UTC)

Lakeland Linder International to Boeing Fld/King County International LAL → BFI

2,208 nautical miles (2,541 statute miles) northwest on a straight line, true course 313°, about 319° magnetic at the departure end (variation 6W). At 120 knots that is 19 h 02 min at the quickest height in today's winds (4,500 ft, a 4-knot headwind), arriving about 2:28 pm PDT (21:28 UTC). Right now LAL is VFR, wind from the west-northwest (300°) at 5 knots; BFI is VFR, wind calm. 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 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 1379 to 1569 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 TANGO 6W: moderate turbulence above 18,000 ft from 28,000 ft to 40,000 ft. Over the route from 150 to 320 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 919 to 1199 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 1299 to 1928 nm out.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 1339 to 1708 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 1429 to 1648 nm out.
AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the route from 1519 to 1768 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1519 to 2018 nm out.
AIRMET SIERRA 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 1559 to 1878 nm out.
AIRMET ZULU 2C: moderate icing up to 16,000 ft. Over the route from 1788 to 2108 nm out.
AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the last 140 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 LAL.

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

urgent CRJ2 at 7,000 ft, 12 nm northeast, 9:04 pm EDT (01:04 UTC): moderate turbulence, remarks: low-level wind shear dept runway 03 gain/loss unknown. 1489 nm along the route, 12 nm northeast of the line.
as filed, and in English
```
CPR UUA /OV CPR035002/TM 0104/FL070/TP CRJ2/TB CONT MOD TURB/RM LLWS DEPT RY03 GAIN/LOSS UNKN
```
Report
an urgent report filed through CPR
Where
2 nm northeast (035°) of CPR
Time
01:04 UTC
Height
at 7,000 ft
Aircraft
CRJ2
Turbulence
continuous moderate turbulence
Remarks
low-level wind shear dept runway 03 gain/loss unknown
UAL1340 at 40,000 ft, 28 nm northeast, 8:18 pm EDT (00:18 UTC): moderate chop turbulence, wind 244° at 70 knots. 1199 nm along the route, 28 nm northeast 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
S22T at 15,000 ft, 2 nm northwest, 9:47 pm EDT (01:47 UTC): moderate rime icing above 15,000 ft, -5 °C. 1658 nm along the route, 2 nm northwest of the line.
as filed, and in English
```
JAC UA /OV DNW010020/TM 0147/FL150/TP S22T/TA M05/IC MOD RIME 150 /ZLC
```
Report
a routine report filed through JAC
Where
20 nm north (010°) of DNW
Time
01:47 UTC
Height
at 15,000 ft
Aircraft
S22T
Temperature
−5 °C
Icing
moderate rime at 15,000 ft zlc
B738 at 33,000 ft, 10 nm south, 7:57 pm EDT (23:57 UTC): moderate chop turbulence from 31,000 ft to 33,000 ft. 1738 nm along the route, 10 nm south of the line.
as filed, and in English
```
IDA UA /OV DBS015030/TM 2357/FL330/TP B738/TB MOD CHOP 310-330 /ZLC
```
Report
a routine report filed through IDA
Where
30 nm north (015°) of DBS
Time
23:57 UTC
Height
at 33,000 ft
Aircraft
B738
Turbulence
moderate chop from 31,000 ft to 33,000 ft zlc
C172 at 1,100 ft, 49 nm northeast, 9:12 pm EDT (01:12 UTC): no turbulence. At the departure end, 49 nm northeast of the line.
as filed, and in English
```
ORL UA /OV ORL/TM 0112/FL011/TP C172/TB SMOOTH
```
Report
a routine report filed through ORL
Where
over ORL
Time
01:12 UTC
Height
at 1,100 ft
Aircraft
C172
Turbulence
smooth
C172 at 1,100 ft, 49 nm northeast, 8:12 pm EDT (00:12 UTC): no turbulence. At the departure end, 49 nm northeast of the line.
as filed, and in English
```
ORL UA /OV 1SM N/TM 0012/FL011/TP C172/TB SMOOTH
```
Report
a routine report filed through ORL
Where
1SM north
Time
00:12 UTC
Height
at 1,100 ft
Aircraft
C172
Turbulence
smooth
PC12 at 19,000 ft, 36 nm east, 8:09 pm EDT (00:09 UTC): light rime icing, -7 °C. At the departure end, 36 nm east of the line.
as filed, and in English
```
MCO UA /OV ORL180030/TM 0009/FL190/TP PC12/TA M07/IC LGT RIME
```
Report
a routine report filed through MCO
Where
30 nm south (180°) of ORL
Time
00:09 UTC
Height
at 19,000 ft
Aircraft
PC12
Temperature
−7 °C
Icing
light rime
C172 at 4,000 ft, 42 nm east, 7:30 pm EDT (23:30 UTC): clear from 4,000 ft to 60,000 ft. At the departure end, 42 nm east of the line.
as filed, and in English
```
MLB UA /OV MLB252035/TM 2330/FL040/TP C172/SK SKC 040
```
Report
a routine report filed through MLB
Where
35 nm west (252°) of MLB
Time
23:30 UTC
Height
at 4,000 ft
Aircraft
C172
Sky
clear from 4,000 ft
PC12 at 20,000 ft, 30 nm northeast, 7:38 pm EDT (23:38 UTC): light rime icing, -8 °C. At the departure end, 30 nm northeast of the line.
as filed, and in English
```
OCF UA /OV OCF180020/TM 2338/FL200/TP PC12/TA M08/IC LGT RIME
```
Report
a routine report filed through OCF
Where
20 nm south (180°) of OCF
Time
23:38 UTC
Height
at 20,000 ft
Aircraft
PC12
Temperature
−8 °C
Icing
light rime
B738 at 36,000 ft, 45 nm northeast, 8:23 pm EDT (00:23 UTC): light chop turbulence. At the departure end, 45 nm northeast of the line.
as filed, and in English
```
OCF UA /OV OCF/TM 0023/FL360/TP B738/TB LGT CHOP
```
Report
a routine report filed through OCF
Where
over OCF
Time
00:23 UTC
Height
at 36,000 ft
Aircraft
B738
Turbulence
light chop
E170 at 32,000 ft, 37 nm northeast, 8:07 pm EDT (00:07 UTC): light turbulence. 140 nm along the route, 37 nm northeast of the line.
as filed, and in English
```
CTY UA /OV CTY320030/TM 0007/FL320/TP E170/TB CONS LGT
```
Report
a routine report filed through CTY
Where
30 nm northwest (320°) of CTY
Time
00:07 UTC
Height
at 32,000 ft
Aircraft
E170
Turbulence
continuous light
B39M at 35,000 ft, 30 nm northeast, 7:51 pm EDT (23:51 UTC): no turbulence. 170 nm along the route, 30 nm northeast of the line.
as filed, and in English
```
TLH UA /OV TLH120020/TM 2351/FL350/TP B39M/TB NEG
```
Report
a routine report filed through TLH
Where
20 nm southeast (120°) of TLH
Time
23:51 UTC
Height
at 35,000 ft
Aircraft
B39M
Turbulence
none
A321 at 34,000 ft, 24 nm northeast, 8:01 pm EDT (00:01 UTC): light chop turbulence. 190 nm along the route, 24 nm northeast of the line.
as filed, and in English
```
TLH UA /OV TLH/TM 0001/FL340/TP A321/TB OCNL LGT CHOP
```
Report
a routine report filed through TLH
Where
over TLH
Time
00:01 UTC
Height
at 34,000 ft
Aircraft
A321
Turbulence
occasional light chop
B747 at 33,000 ft, 41 nm northeast, 9:02 pm EDT (01:02 UTC): no turbulence. 210 nm along the route, 41 nm northeast of the line.
as filed, and in English
```
TLH UA /OV TLH360025/TM 0102/FL330/TP B747/TB NEG
```
Report
a routine report filed through TLH
Where
25 nm north (360°) of TLH
Time
01:02 UTC
Height
at 33,000 ft
Aircraft
B747
Turbulence
none

13 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 18 forecast points nearest it (PIE, TLH, MGM, BHM, JAN, MEM, LIT, SGF, TUL, ICT, SLN, GLD, BFF, LND, DLN, LWS, YKM, 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	230° at 14 kt	+4 kt		116 kt	19 h 02 min	2:28 pm PDT (21:28 UTC)
6,500 ft	250° at 12 kt	+6 kt	12 °C	114 kt	19 h 22 min	2:48 pm PDT (21:48 UTC)
8,500 ft	250° at 11 kt	+7 kt	7 °C	113 kt	19 h 32 min	2:58 pm PDT (21:58 UTC)
10,500 ft	250° at 11 kt	+7 kt	5 °C	113 kt	19 h 32 min	2:58 pm PDT (21:58 UTC)
12,500 ft	250° at 12 kt	+7 kt	2 °C	113 kt	19 h 32 min	2:58 pm PDT (21:58 UTC)
14,500 ft	250° at 14 kt	+8 kt	-2 °C	112 kt	19 h 43 min	3:09 pm PDT (22:09 UTC)
16,500 ft	240° at 15 kt	+8 kt	-7 °C	112 kt	19 h 43 min	3:09 pm PDT (22:09 UTC)
18,000 ft FL180	240° at 17 kt	+8 kt	-10 °C	112 kt	19 h 43 min	3:09 pm PDT (22:09 UTC)
24,000 ft FL240	250° at 21 kt	+12 kt	-21 °C	108 kt	20 h 27 min	3:53 pm PDT (22:53 UTC)
30,000 ft FL300	260° at 30 kt	+22 kt	-32 °C	98 kt	22 h 32 min	5:58 pm PDT (00:58 UTC)
34,000 ft FL340	260° at 35 kt	+26 kt	-39 °C	94 kt	23 h 29 min	6:55 pm PDT (01:55 UTC)
39,000 ft FL390	260° at 36 kt	+29 kt	-47 °C	91 kt	24 h 16 min	7:42 pm PDT (02:42 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
PIE	used from 0 nm out; 28 nm from the line	350/6	L/V 18°	290/6 14°	280/9 9°	250/18 -6°	250/23 -17°	240/30 -31°	220/31 -41°	220/30 -52°
TLH	used from 100 nm out; 67 nm from the line	320/18	350/31 18°	340/24 13°	310/17 8°	280/22 -7°	300/25 -17°	320/28 -33°	320/24 -41°	320/25 -50°
MGM	used from 250 nm out; 78 nm from the line	310/19	340/24 17°	340/28 11°	330/16 7°	300/23 -7°	320/32 -16°	330/46 -33°	330/55 -42°	330/41 -50°
BHM	used from 400 nm out; 87 nm from the line	310/19	330/20 17°	320/28 11°	340/21 6°	310/22 -7°	330/33 -17°	330/50 -32°	330/57 -41°	330/41 -50°
JAN	used from 450 nm out; 81 nm from the line	230/10	270/13 18°	270/11 12°	310/11 6°	300/15 -4°	300/22 -16°	310/33 -31°	320/37 -41°	330/41 -52°
MEM	used from 500 nm out; 79 nm from the line	230/19	260/16 15°	270/17 12°	300/13 6°	300/15 -5°	300/26 -18°	300/34 -32°	300/41 -40°	310/46 -52°
LIT	used from 599 nm out; 49 nm from the line	220/21	230/17 16°	250/24 12°	260/15 7°	260/13 -5°	280/25 -16°	290/35 -30°	300/42 -40°	300/40 -52°
SGF	used from 749 nm out; 57 nm from the line	230/33	230/28 15°	250/20 13°	240/18 7°	250/20 -6°	250/24 -17°	280/42 -31°	280/49 -40°	290/46 -51°
TUL	used from 849 nm out; 72 nm from the line	210/37	240/29 17°	260/15 14°	260/11 7°	240/22 -6°	250/29 -16°	270/45 -29°	270/47 -40°	280/44 -50°
ICT	used from 899 nm out; 59 nm from the line	200/48	230/39 19°	240/24 14°	240/20 8°	240/22 -6°	250/31 -18°	250/61 -29°	260/58 -38°	270/54 -49°
SLN	used from 999 nm out; 14 nm from the line	210/53	230/41 20°	240/26 14°	230/16 8°	240/25 -7°	240/35 -19°	250/61 -30°	260/65 -38°	260/56 -49°
GLD	used from 1099 nm out; 93 nm from the line		230/49	230/42 15°	220/26 8°	240/18 -7°	230/27 -21°	240/62 -30°	240/61 -35°	250/57 -47°
BFF	used from 1249 nm out; 72 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°
LND	used from 1449 nm out; 105 nm from the line			200/23 6°	220/31 1°	220/39 -11°	230/39 -23°	220/51 -28°	220/66 -37°	230/68 -45°
DLN	used from 1648 nm out; 110 nm from the line			090/6 -6°	240/22 -4°	210/34 -16°	210/62 -25°	210/66 -34°	210/82 -36°	220/77 -42°
LWS	used from 1898 nm out; 58 nm from the line	070/10	080/12 -2°	030/12 -6°	080/7 -10°	170/34 -21°	160/46 -32°	200/33 -35°	220/22 -35°	230/18 -38°
YKM	used from 2048 nm out; 58 nm from the line	070/10	040/15 -1°	020/27 -8°	030/25 -13°	020/48 -20°	010/83 -27°	010/77 -37°	010/49 -40°	350/14 -41°
SEA	used from 2148 nm out; 34 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
LAL Lakeland, FL	departure	VFR	from the west-northwest (300°) at 5 knots	10+ mi	none	141 ft	9:50 pm EDT (01:50 UTC)
BKV Brooksville, FL	40 nm out, 6 nm east of the line, tower	VFR	calm	10+ mi	none	76 ft	01:53 UTC
SEM Selma, AL	370 nm out, 22 nm northeast of the line, tower	reported, no category	from the east (080°) at 27 knots, gusting to 37		3,300 ft	166 ft	01:30 UTC
GTR Columbus/W Point/Starkville, MS	470 nm out, 20 nm northeast of the line, tower	VFR	calm	10+ mi	none	264 ft	01:56 UTC
ROG Rogers, AR	789 nm out, 11 nm southwest of the line, tower	VFR	from the south (190°) at 8 knots	10+ mi	none	1,358 ft	01:58 UTC
SLN Salina, KS	1019 nm out, 11 nm northeast of the line, tower	VFR	from the south (170°) at 13 knots	10+ mi	none	1,288 ft	01:53 UTC
NRN Norton, KS	1139 nm out, 5 nm northeast of the line	VFR	from the south (170°) at 12 knots	10+ mi	none	2,384 ft	02:15 UTC
CPR Casper, WY	1489 nm out, 10 nm northeast of the line, tower	VFR Sky: a few clouds at 11,000 feet	from the northwest (310°) at 7 knots	10+ mi	none	5,344 ft	01:53 UTC
HSG Thermopolis, WY	1579 nm out, 13 nm north of the line	IFR Sky: overcast at 600 feet Weather: mist	from the north (360°) at 5 knots	4 mi	600 ft	4,891 ft	02:15 UTC
LWS Lewiston, ID	1978 nm out, 7 nm north of the line, tower	VFR Sky: overcast at 6,000 feet	from the west-northwest (300°) at 8 knots	10+ mi	6,000 ft	1,442 ft	01:56 UTC
MWH Moses Lake, WA	2088 nm out, 20 nm northeast of the line, tower	VFR Sky: a broken layer at 9,000 feet, overcast at 11,000 feet	from the east (080°) at 4 knots	10+ mi	9,000 ft	1,188 ft	01:52 UTC
BFI Seattle, WA	destination	VFR Sky: a few clouds at 6,000 feet	calm	10+ mi	none	21 ft	6:53 pm PDT (01:53 UTC)

The highest airport on this list sits at 5,344 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At BFI when you get there the forecast at the estimated arrival, 2:28 pm PDT (21:28 UTC)

Wind from the west at 5 knots, visibility more than 6 miles, clear skies VFR

The whole forecast for BFI

From Sun 5:00 pm PDT (00:00 UTC): wind from the north-northwest at 8 knots, gusting to 18, visibility more than 6 miles, a few clouds at 5,000 feet
From Sun 7:00 pm PDT (02:00 UTC): wind light and variable, visibility more than 6 miles, clear skies
From Mon 3:00 am PDT (10:00 UTC): wind light and variable, visibility more than 6 miles, patches of fog, clear skies
From Mon 9:00 am PDT (16:00 UTC): wind from the south-southeast at 3 knots, visibility more than 6 miles, clear skies
From Mon 12:00 pm PDT (19:00 UTC): wind from the west-southwest at 3 knots, visibility more than 6 miles, clear skies
From Mon 2:00 pm PDT (21:00 UTC): wind from the west at 5 knots, visibility more than 6 miles, clear skies

The forecast for LAL, the departure

From Sun 8:00 pm EDT (00:00 UTC): wind from the north at 4 knots, visibility more than 6 miles, a few clouds at 3,000 feet, a broken layer at 25,000 feet
From Sun 11:00 pm EDT (03:00 UTC): wind from the north at 4 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
From Mon 10:00 am EDT (14:00 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 LAL 7:02 pm EDT (23:02 UTC), at BFI 6:27 pm PDT (01:27 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 Southeast · loop National Weather Service

Radar now, the lower Mississippi valley · loop National Weather Service

Radar now, the southern Plains · 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: Lakeland Linder International, Boeing Fld/King County International.