Plan a flight · Mon 8:50 am PDT (15:50 UTC)

Seattle-Tacoma International to Gainesville Regional SEA → GNV

2,128 nautical miles (2,449 statute miles) east on a straight line, true course 106°, about 090° magnetic at the departure end (variation 16E). At 120 knots that is 14 h at the quickest height in today's winds (34,000 ft, a 32-knot tailwind), arriving about 1:50 am EDT (05:50 UTC), after sunset at the destination. Right now SEA is VFR, wind variable at 4 knots; GNV is VFR, wind from the northwest (320°) 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: 13 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 18,000 ft to 39,000 ft. Over the route from 30 to 380 nm out.
AIRMET ZULU 2C: moderate icing up to 18,000 ft. Over the route from 150 to 380 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 190 to 699 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 370 to 979 nm out.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 390 to 570 nm out.
AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Near the route, 769 nm along the route.
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 799 to 899 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Near the route, 829 nm along the route.
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 1069 to 1429 nm out.
AIRMET TANGO 2W: moderate turbulence above 18,000 ft from 30,000 ft to 41,000 ft. Over the last 70 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 SEA.

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

urgent C182 , 26 nm southwest, 8:17 am PDT (15:17 UTC): remarks: low-level wind shear a 10-knot loss of airspeed from the surface to 800 ft during the descent runway 18 jln. 1369 nm along the route, 26 nm southwest of the line.
as filed, and in English
```
JLN UUA /OV KLJN/TM 1517/FLDURD/TP C182/RM LLWS +/-10KT SFC-008 DURD RWY18 JLN
```
Report
an urgent report filed through JLN
Where
over KLJN
Time
15:17 UTC
Height
during the descent
Aircraft
C182
Remarks
low-level wind shear a 10-knot loss of airspeed from the surface to 800 ft during the descent runway 18 jln
CRJ9 at 32,000 ft, 41 nm south, 8:22 am PDT (15:22 UTC): no turbulence above 32,000 ft, remarks: zse. At the departure end, 41 nm south of the line.
as filed, and in English
```
SEA UA /OV SEA160042/TM 1522/FL320/TP CRJ9/TB NEG 320/RM ZSE
```
Report
a routine report filed through SEA
Where
42 nm south (160°) of SEA
Time
15:22 UTC
Height
at 32,000 ft
Aircraft
CRJ9
Turbulence
no at 32,000 ft
Remarks
zse
A21N at 22,000 ft, 45 nm south, 8:15 am PDT (15:15 UTC): no turbulence from 10,000 ft to 22,000 ft, remarks: smooth during the climb summa dept zse. At the departure end, 45 nm south of the line.
as filed, and in English
```
SEA UA /OV SEA149050/TM 1515/FL220/TP A21N/TB NEG 100-220/RM SMOOTH DURC SUMMA DEPT ZSE
```
Report
a routine report filed through SEA
Where
50 nm southeast (149°) of SEA
Time
15:15 UTC
Height
at 22,000 ft
Aircraft
A21N
Turbulence
no from 10,000 ft to 22,000 ft
Remarks
smooth during the climb summa dept zse
CRJ2 at 13,500 ft, 35 nm southwest, 8:27 am PDT (15:27 UTC): no turbulence, no icing, overcast above 10,500 ft, -9 °C, remarks: tops 13,500 ft. 729 nm along the route, 35 nm southwest of the line.
as filed, and in English
```
CPR UA /OV CPR180025/TM 1527/FL135/TP CRJ2/SK OVC105/TA M09/TB NEG/IC NEG/RM TOPS 135
```
Report
a routine report filed through CPR
Where
25 nm south (180°) of CPR
Time
15:27 UTC
Height
at 13,500 ft
Aircraft
CRJ2
Sky
overcast from 10,500 ft
Temperature
−9 °C
Turbulence
none
Icing
none
Remarks
tops 13,500 ft
E175L at 10,000 ft, 12 nm south, 7:05 am PDT (14:05 UTC): overcast from 10,500 ft to 11,500 ft. 729 nm along the route, 12 nm south of the line.
as filed, and in English
```
CPR UA /OV CPR110010/TM 1405/FL100/TP E175L/SK OVC105-TOP115
```
Report
a routine report filed through CPR
Where
10 nm east (110°) of CPR
Time
14:05 UTC
Height
at 10,000 ft
Aircraft
E175L
Sky
overcast from 10,500 ft, tops 11,500 ft
BE20 at 8,000 ft, 20 nm northeast, 6:15 am PDT (13:15 UTC): no turbulence, no icing, remarks: durd-zdvwc 31. 889 nm along the route, 20 nm northeast of the line.
as filed, and in English
```
AIA UA /OV KAIA/TM 1315/FL080/TP BE20/SK TOP 045 BASE 002/TB NEG/IC NEG/RM DURD-ZDVWC- 31
```
Report
a routine report filed through AIA
Where
over KAIA
Time
13:15 UTC
Height
at 8,000 ft
Aircraft
BE20
Sky
top 4,500 ft base 200 ft
Turbulence
none
Icing
none
Remarks
durd-zdvwc 31
C56X at 6,000 ft, 46 nm southwest, 7:37 am PDT (14:37 UTC): clear from 6,000 ft to 60,000 ft, remarks: ZDVWC-19. 949 nm along the route, 46 nm southwest of the line.
as filed, and in English
```
HEQ UA /OV HEQ/TM 1437/FL060/TP C56X/SK SKC/RM -ZDVWC-19
```
Report
a routine report filed through HEQ
Where
over HEQ
Time
14:37 UTC
Height
at 6,000 ft
Aircraft
C56X
Sky
clear
Remarks
ZDVWC-19
B738 at 38,000 ft, 14 nm northeast, 6:09 am PDT (13:09 UTC): light chop turbulence, remarks: ZDVWC-35. 999 nm along the route, 14 nm northeast of the line.
as filed, and in English
```
LBF UA /OV LBF/TM 1309/FL380/TP B738/TB CONS LGT CHOP/RM -ZDVWC-35
```
Report
a routine report filed through LBF
Where
over LBF
Time
13:09 UTC
Height
at 38,000 ft
Aircraft
B738
Turbulence
continuous light chop
Remarks
ZDVWC-35
P46T at 27,000 ft, 15 nm north, 8:38 am PDT (15:38 UTC): light rime icing, -26 °C, remarks: zkcfdc xj. 1259 nm along the route, 15 nm north of the line.
as filed, and in English
```
EMP UA /OV EMP360030/TM 1538/FL270/TP P46T/TA M26/IC LGT RIME/RM /ZKCFDC XJ
```
Report
a routine report filed through EMP
Where
30 nm north (360°) of EMP
Time
15:38 UTC
Height
at 27,000 ft
Aircraft
P46T
Temperature
−26 °C
Icing
light rime
Remarks
zkcfdc xj
B737 at 24,000 ft, 47 nm northeast, 7:08 am PDT (14:08 UTC): light to moderate turbulence from 22,000 ft to 24,000 ft, remarks: during the descent MHOMS3 zkcfdc xj. 1359 nm along the route, 47 nm northeast of the line.
as filed, and in English
```
OJC UA /OV BUM088035/TM 1408/FL240/TP B737/TB LGT-MOD 240-220/RM DURD MHOMS3 /ZKCFDC XJ
```
Report
a routine report filed through OJC
Where
35 nm east (088°) of BUM
Time
14:08 UTC
Height
at 24,000 ft
Aircraft
B737
Turbulence
light to moderate from 24,000 ft to 22,000 ft
Remarks
during the descent MHOMS3 zkcfdc xj
P28A at 4,000 ft, 17 nm southwest, 8:03 am PDT (15:03 UTC): light turbulence up to 3,000 ft, remarks: during the climb smooth up at at 4,000 ft. 1439 nm along the route, 17 nm southwest of the line.
as filed, and in English
```
BBG UA /OV KPLK /TM 1503 /FL040 /TP P28A /TB OCNL LGT BLO 030/NEG 040 /RM DURC SMOOTH UP AT 040
```
Report
a routine report filed through BBG
Where
over KPLK
Time
15:03 UTC
Height
at 4,000 ft
Aircraft
P28A
Turbulence
occasional light below 030/NEG at 4,000 ft
Remarks
during the climb smooth up at at 4,000 ft
BE33 at 4,500 ft, 40 nm southwest, 6:05 am PDT (13:05 UTC): clear from 4,500 ft to 60,000 ft, remarks: ZME65. 1629 nm along the route, 40 nm southwest of the line.
as filed, and in English
```
UTA UA /OV UTA180015/TM 1305/FL045/TP BE33/SK SKC/RM ZME65
```
Report
a routine report filed through UTA
Where
15 nm south (180°) of UTA
Time
13:05 UTC
Height
at 4,500 ft
Aircraft
BE33
Sky
clear
Remarks
ZME65
C560 at 8,000 ft, 19 nm southwest, 6:14 am PDT (13:14 UTC): clear from 8,000 ft to 60,000 ft. 1869 nm along the route, 19 nm southwest of the line.
as filed, and in English
```
MGM UA /OV MGM 5N/TM 1314/FL080/TP C560/SK SKC
```
Report
a routine report filed through MGM
Where
mgm 5N
Time
13:14 UTC
Height
at 8,000 ft
Aircraft
C560
Sky
clear
SF50 at 2,000 ft, 19 nm southwest, 5:55 am PDT (12:55 UTC): remarks: great visibility, no tops/bases reported. 1869 nm along the route, 19 nm southwest of the line.
as filed, and in English
```
MGM UA /OV 6 MILES E MGM /TM 1255/FL020/TP SF50/RM GREAT VIS, NO TOPS/BASES REPORTED
```
Report
a routine report filed through MGM
Where
6 miles east mgm
Time
12:55 UTC
Height
at 2,000 ft
Aircraft
SF50
Remarks
great visibility, no tops/bases reported

5 more routine reports are on the map.

Winds aloft along the route, and the time en route the forecast for use 14:00–21:00 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 18 forecast points nearest it (SEA, YKM, LWS, DLN, LND, BFF, GLD, GRI, SLN, MKC, SGF, LIT, MEM, BHM, MGM, CSG, TLH, JAX). 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	260° at 9 kt	−6 kt		126 kt	16 h 53 min	4:43 am EDT (08:43 UTC)
5,500 ft	270° at 14 kt	−11 kt	19 °C	131 kt	16 h 15 min	4:05 am EDT (08:05 UTC)
7,500 ft	270° at 13 kt	−10 kt	8 °C	130 kt	16 h 22 min	4:12 am EDT (08:12 UTC)
9,500 ft	260° at 13 kt	−10 kt	6 °C	130 kt	16 h 22 min	4:12 am EDT (08:12 UTC)
11,500 ft	260° at 14 kt	−9 kt	3 °C	129 kt	16 h 30 min	4:20 am EDT (08:20 UTC)
13,500 ft	250° at 14 kt	−9 kt	-1 °C	129 kt	16 h 30 min	4:20 am EDT (08:20 UTC)
15,500 ft	250° at 14 kt	−8 kt	-6 °C	128 kt	16 h 38 min	4:28 am EDT (08:28 UTC)
17,500 ft	250° at 14 kt	−8 kt	-10 °C	128 kt	16 h 38 min	4:28 am EDT (08:28 UTC)
18,000 ft FL180	250° at 14 kt	−8 kt	-11 °C	128 kt	16 h 38 min	4:28 am EDT (08:28 UTC)
24,000 ft FL240	250° at 23 kt	−14 kt	-22 °C	134 kt	15 h 53 min	3:43 am EDT (07:43 UTC)
30,000 ft FL300	270° at 36 kt	−30 kt	-32 °C	150 kt	14 h 11 min	2:01 am EDT (06:01 UTC)
34,000 ft FL340	270° at 36 kt	−32 kt	-38 °C	152 kt	14 h	1:50 am EDT (05:50 UTC)
39,000 ft FL390	270° at 35 kt	−31 kt	-47 °C	151 kt	14 h 06 min	1:56 am EDT (05:56 UTC)

Based on data from the 12th at 12:00 UTC; valid on the 12th at 18:00 UTC for use 14:00 to 21:00 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
SEA	used from 0 nm out; 25 nm from the line	L/V	L/V 1°	020/13 -2°	020/27 -4°	010/43 -14°	360/54 -26°	360/63 -40°	010/60 -48°	350/39 -50°
YKM	used from 50 nm out; 32 nm from the line	L/V	350/9 0°	040/20 -5°	030/23 -8°	020/41 -18°	010/74 -27°	010/73 -40°	020/54 -44°	350/9 -43°
LWS	used from 150 nm out; 52 nm from the line	L/V	L/V -2°	030/6 -5°	050/10 -10°	110/19 -21°	150/22 -31°	130/11 -36°	200/6 -37°	220/21 -40°
DLN	used from 350 nm out; 51 nm from the line			L/V -3°	170/16 -6°	180/21 -18°	190/27 -30°	210/63 -33°	210/62 -36°	210/51 -42°
LND	used from 550 nm out; 85 nm from the line			220/16 3°	230/26 -1°	210/30 -14°	220/57 -26°	220/60 -31°	220/62 -38°	220/52 -44°
BFF	used from 749 nm out; 90 nm from the line		310/15	280/27 8°	250/27 2°	230/30 -12°	240/52 -22°	250/66 -32°	240/78 -37°	240/76 -43°
GLD	used from 949 nm out; 102 nm from the line		240/22	250/24 13°	250/39 6°	230/42 -8°	230/55 -21°	240/87 -30°	240/96 -36°	250/93 -48°
GRI	used from 1049 nm out; 71 nm from the line		270/26 19°	230/33 13°	230/39 8°	230/43 -9°	240/55 -21°	250/76 -28°	260/84 -36°	260/68 -47°
SLN	used from 1099 nm out; 73 nm from the line	210/26	250/36 22°	240/39 14°	240/38 7°	240/42 -9°	240/49 -20°	260/75 -27°	260/76 -36°	270/71 -48°
MKC	used from 1249 nm out; 74 nm from the line	220/35	240/30 21°	240/27 13°	240/31 6°	260/31 -7°	250/43 -21°	270/70 -28°	280/72 -36°	280/59 -49°
SGF	used from 1349 nm out; 38 nm from the line	220/23	240/29 16°	240/21 13°	240/15 7°	270/28 -7°	260/34 -18°	280/67 -29°	290/59 -37°	290/51 -49°
LIT	used from 1499 nm out; 83 nm from the line	230/23	250/23 17°	250/18 11°	250/18 7°	250/27 -7°	270/23 -15°	290/50 -30°	300/43 -38°	320/38 -50°
MEM	used from 1549 nm out; 49 nm from the line	240/14	260/23 16°	250/22 11°	250/20 7°	270/24 -6°	270/27 -16°	310/49 -30°	310/46 -39°	320/43 -50°
BHM	used from 1699 nm out; 85 nm from the line	310/11	310/13 16°	310/18 11°	300/17 6°	300/14 -5°	300/20 -17°	320/35 -30°	320/43 -40°	340/38 -50°
MGM	used from 1849 nm out; 20 nm from the line	350/14	320/18 17°	320/17 11°	300/14 5°	330/13 -5°	310/12 -17°	330/29 -30°	340/40 -40°	350/32 -50°
CSG	used from 1899 nm out; 40 nm from the line	340/20	340/15 17°	330/19 11°	320/19 5°	330/11 -4°	300/14 -17°	330/28 -31°	340/42 -40°	350/33 -51°
TLH	used from 1948 nm out; 60 nm from the line	360/24	350/19 18°	340/18 11°	320/14 6°	360/12 -5°	350/21 -17°	350/29 -32°	360/34 -41°	340/33 -53°
JAX	used from 2098 nm out; 57 nm from the line	320/17	330/21 17°	320/21 14°	310/23 8°	340/19 -6°	360/26 -19°	010/44 -30°	360/35 -41°	330/22 -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
SEA Seattle, WA	departure	VFR Sky: a few clouds at 100 feet, a few clouds at 8,000 feet	variable at 4 knots	10+ mi	none	432 ft	7:53 am PDT (14:53 UTC)
MWH Moses Lake, WA	120 nm out, 21 nm north of the line, tower	VFR	from the north (010°) at 5 knots	10+ mi	none	1,188 ft	14:52 UTC
LWS Lewiston, ID	230 nm out, 5 nm northwest of the line, tower	VFR Sky: overcast at 5,500 feet	calm	10+ mi	5,500 ft	1,442 ft	14:56 UTC
WYS West Yellowstone, MT	490 nm out, 5 nm east of the line	marginal VFR Sky: scattered clouds at 1,700 feet, a broken layer at 2,300 feet, overcast at 6,000 feet	calm	10+ mi	2,300 ft	6,649 ft	15:30 UTC
GUR Guernsey, WY	809 nm out, 10 nm southwest of the line, tower	VFR	from the east-southeast (110°) at 4 knots	10+ mi	none	4,401 ft	14:55 UTC
OKS Oshkosh, NE	929 nm out, 5 nm west of the line	no report just now				3,394 ft
MHK Manhattan, KS	1219 nm out, 16 nm northeast of the line, tower	VFR	from the south-southwest (200°) at 13 knots	10+ mi	none	1,066 ft	14:52 UTC
SGF Springfield, MO	1409 nm out, 9 nm northeast of the line, tower	VFR	from the south-southwest (210°) at 12 knots, gusting to 20	10+ mi	none	1,268 ft	14:52 UTC
TUP Tupelo, MS	1699 nm out, 0 nm northwest of the line, tower	VFR	from the west-southwest (240°) at 5 knots	10+ mi	none	346 ft	14:53 UTC
TCL Tuscaloosa, AL	1779 nm out, 14 nm south of the line, tower	VFR	calm	7 mi	none	169 ft	14:53 UTC
LCQ Lake City, FL	2098 nm out, 12 nm northeast of the line, tower	VFR	from the north-northwest (340°) at 7 knots, gusting to 15	10+ mi	none	200 ft	15:35 UTC
GNV Gainesville, FL	destination	VFR	from the northwest (320°) at 8 knots	10+ mi	none	151 ft	10:53 am EDT (14:53 UTC)

The highest airport on this list sits at 6,649 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At GNV when you get there the forecast at the estimated arrival, 1:50 am EDT (05:50 UTC)

Wind calm, visibility more than 6 miles, clear skies VFR

The whole forecast for GNV

From Mon 11:00 am EDT (15:00 UTC): wind from the north-northwest at 10 knots, gusting to 15, visibility more than 6 miles, clear skies
From Mon 6:00 pm EDT (22:00 UTC): wind from the northwest at 7 knots, visibility more than 6 miles, clear skies
From Mon 9:30 pm EDT (01:30 UTC): wind calm, visibility more than 6 miles, clear skies

The forecast for SEA, the departure

From Mon 8:00 am PDT (15:00 UTC): wind from the south-southeast at 5 knots, visibility more than 6 miles, clear skies
From Mon 9:00 am PDT (16:00 UTC): wind light and variable, visibility more than 6 miles, clear skies
From Mon 3:00 pm PDT (22:00 UTC): wind from the west at 5 knots, visibility more than 6 miles, clear skies
From Mon 8:00 pm PDT (03:00 UTC): wind light and variable, visibility more than 6 miles, scattered clouds at 25,000 feet
From Mon 11:00 pm PDT (06:00 UTC): wind from the southeast at 3 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
From Tue 4:00 am PDT (11:00 UTC): wind from the south-southeast at 5 knots, visibility more than 6 miles, overcast at 10,000 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 SEA 6:25 pm PDT (01:25 UTC), at GNV 7:02 pm EDT (23:02 UTC) (civil twilight ends 7:26 pm EDT (23:26 UTC)). At 120 knots the arrival at GNV is before sunrise there (7:29 am EDT (11:29 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 now, the northern Rockies · 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: Seattle-Tacoma International, Gainesville Regional.