Plan a flight · Sun 6:39 pm PDT (01:39 UTC)

San Diego International to Waterloo Regional SAN → ALO

1,311 nautical miles (1,509 statute miles) northeast on a straight line, true course 056°, about 045° magnetic at the departure end (variation 11E). At 120 knots that is 7 h 10 min at the quickest height in today's winds (34,000 ft, a 63-knot tailwind), arriving about 3:49 am CDT (08:49 UTC), after sunset at the destination. Right now SAN is marginal VFR, wind from the southwest (230°) at 7 knots; ALO is VFR, wind from the south (170°) at 10 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: 2 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 4W: thunderstorms (a convective SIGMET) up to 28,000 ft, moving from the southwest at 20 knots, until 7:55 pm PDT (02:55 UTC). Over the route from 258 to 387 nm out.

as issued

WSUS33 KKCI 120055
MKCW WST 120055
CONVECTIVE SIGMET 4W
VALID UNTIL 0255Z
AZ
FROM 60NE TBC-30S INW-100ESE BZA-70SE EED-50NW TBC-60NE TBC
DMSHG AREA EMBD TS MOV FROM 21020KT. TOPS TO FL280.

SIGMET 1W: thunderstorms (a convective SIGMET) up to 34,000 ft, moving from the southwest at 40 knots, until 7:55 pm PDT (02:55 UTC). Over the route from 467 to 675 nm out.

as issued

WSUS33 KKCI 120055
MKCW WST 120055
CONVECTIVE SIGMET 1W
VALID UNTIL 0255Z
CO NM WY AZ UT
FROM 40NNW CHE-40WNW TBE-60WNW CME-40N SJN-40ESE MTU-40NNW CHE
AREA SEV TS MOV FROM 23040KT. TOPS TO FL340.
WIND GUSTS TO 60KT POSS.

AIRMET SIERRA 6E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 40 nm of the route.
AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the route from 20 to 139 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 199 to 417 nm out.
AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the route from 209 to 268 nm out.
AIRMET SIERRA 2E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 228 to 328 nm out.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 238 to 775 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 517 to 665 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 526 to 665 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 526 to 755 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 last 457 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 SAN.

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

urgent GLF6 at 45,000 ft, 13 nm northwest, 4:57 pm PDT (23:57 UTC): severe turbulence, remarks: a/c had to exit auto pilot, 45 degree pitch-zdv. 477 nm along the route, 13 nm northwest of the line.
as filed, and in English
```
FMN UUA /OV RSK280050/TM 2357/FL450/TP GLF6/TB SEV/RM A/C HAD TO EXIT AUTO PILOT, 45 DEGREE PITCH-ZDV
```
Report
an urgent report filed through FMN
Where
50 nm west (280°) of RSK
Time
23:57 UTC
Height
at 45,000 ft
Aircraft
GLF6
Turbulence
severe
Remarks
a/c had to exit auto pilot, 45 degree pitch-zdv
GLF4 at 43,000 ft, 13 nm northwest, 5:15 pm PDT (00:15 UTC): moderate turbulence, remarks: zdvwc. 487 nm along the route, 13 nm northwest of the line.
as filed, and in English
```
FMN UA /OV RSK290045/TM 0015/FL430/TP GLF4/TB CONS MOD/RM ZDVWC
```
Report
a routine report filed through FMN
Where
45 nm west (290°) of RSK
Time
00:15 UTC
Height
at 43,000 ft
Aircraft
GLF4
Turbulence
continuous moderate
Remarks
zdvwc
GLF4 at 43,000 ft, 10 nm northwest, 5:09 pm PDT (00:09 UTC): moderate chop turbulence, remarks: ZDVWC-38. 546 nm along the route, 10 nm northwest of the line.
as filed, and in English
```
FMN UA /OV RSK360050/TM 0009/FL430/TP GLF4/TB MOD CHOP/RM ZDVWC-38
```
Report
a routine report filed through FMN
Where
50 nm north (360°) of RSK
Time
00:09 UTC
Height
at 43,000 ft
Aircraft
GLF4
Turbulence
moderate chop
Remarks
ZDVWC-38
UAL2238 at 38,000 ft, 17 nm north, 4:44 pm PDT (23:44 UTC): moderate turbulence, wind 244° at 64 knots. 596 nm along the route, 17 nm north of the line.
as filed, and in English
```
ARP UAL2238 3807N 10649W 2344 F380 244/064KT TB CONT MOD TURB IC
```
Report
a routine report filed through ARP
GLF5 at 45,000 ft, 30 nm north, 3:44 pm PDT (22:44 UTC): moderate turbulence, remarks: ZDVWC-46. 715 nm along the route, 30 nm north of the line.
as filed, and in English
```
COS UA /OV COS350025/TM 2244/FL450/TP GLF5/TB MOD /RM ZDVWC-46
```
Report
a routine report filed through COS
Where
25 nm north (350°) of COS
Time
22:44 UTC
Height
at 45,000 ft
Aircraft
GLF5
Turbulence
moderate
Remarks
ZDVWC-46
UAL1340 at 40,000 ft, 37 nm northwest, 5:18 pm PDT (00:18 UTC): moderate chop turbulence, wind 244° at 70 knots. 924 nm along the route, 37 nm northwest 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
E75L at 2,800 ft, 0 nm northwest, 6:05 pm PDT (01:05 UTC): a broken layer from 2,800 ft to 5,500 ft. At the departure end, 0 nm northwest of the line.
as filed, and in English
```
SAN UA /OV SAN/TM 0105/FL28/TP E75L/SK BKN028/TOP055
```
Report
a routine report filed through SAN
Where
over SAN
Time
01:05 UTC
Height
at 2,800 ft
Aircraft
E75L
Sky
a broken layer from 2,800 ft; TOP055
B737 at 2,700 ft, 0 nm northwest, 5:08 pm PDT (00:08 UTC): remarks: bases 2,700 ft tops 5,000 ft. At the departure end, 0 nm northwest of the line.
as filed, and in English
```
SAN UA /OV 3 MI WEST/TM 0008/FL027/TP B737/RM BASES 027 TOPS 050
```
Report
a routine report filed through SAN
Where
3 mi west
Time
00:08 UTC
Height
at 2,700 ft
Aircraft
B737
Remarks
bases 2,700 ft tops 5,000 ft
B39M at 3,400 ft, 0 nm northwest, 5:04 pm PDT (00:04 UTC): a broken layer from 3,400 ft to 4,000 ft, remarks: during the descent RY27. At the departure end, 0 nm northwest of the line.
as filed, and in English
```
SAN UA /OV SAN/TM 0004/FL034/TP B39M/SK BKN034-TOP040/RM DURD RY27
```
Report
a routine report filed through SAN
Where
over SAN
Time
00:04 UTC
Height
at 3,400 ft
Aircraft
B39M
Sky
a broken layer from 3,400 ft, tops 4,000 ft
Remarks
during the descent RY27
B737 at 2,700 ft, 0 nm northwest, 4:18 pm PDT (23:18 UTC): remarks: bases 2,700 ft tops 4,700 ft. At the departure end, 0 nm northwest of the line.
as filed, and in English
```
SAN UA /OV 2 MI WEST/TM 2318/FL027/TP B737/RM BASES 027 TOPS 047
```
Report
a routine report filed through SAN
Where
2 mi west
Time
23:18 UTC
Height
at 2,700 ft
Aircraft
B737
Remarks
bases 2,700 ft tops 4,700 ft
E55P at 2,700 ft, 0 nm northwest, 4:11 pm PDT (23:11 UTC): a broken layer from 2,700 ft to 3,500 ft. At the departure end, 0 nm northwest of the line.
as filed, and in English
```
SAN UA /OV SAN/TM 2311/FL027/TP E55P/SK BKN027/TOP035
```
Report
a routine report filed through SAN
Where
over SAN
Time
23:11 UTC
Height
at 2,700 ft
Aircraft
E55P
Sky
a broken layer from 2,700 ft; TOP035
B739 at 2,800 ft, 0 nm northwest, 3:41 pm PDT (22:41 UTC): remarks: bases 2,800 ft tops 4,800 ft. At the departure end, 0 nm northwest of the line.
as filed, and in English
```
SAN UA /OV 1 MI WEST/TM 2241/FL028/TP B739/RM BASES 028 TOPS 048
```
Report
a routine report filed through SAN
Where
1 mi west
Time
22:41 UTC
Height
at 2,800 ft
Aircraft
B739
Remarks
bases 2,800 ft tops 4,800 ft
C172 climbing, 3 nm east, 6:20 pm PDT (01:20 UTC): overcast from 3,000 ft to 6,200 ft. At the departure end, 3 nm east of the line.
as filed, and in English
```
SEE UA /OV 090003/TM 0120/FLDURC/TP C172/SK OVC030-TOP062
```
Report
a routine report filed through SEE
Where
wind from 090° at 3 knots
Time
01:20 UTC
Height
during the climb
Aircraft
C172
Sky
overcast from 3,000 ft, tops 6,200 ft
CL60 at 3,000 ft, 3 nm east, 5:22 pm PDT (00:22 UTC): remarks: bases 3,000 ft tops 5,500 ft. At the departure end, 3 nm east of the line.
as filed, and in English
```
SEE UA /OV 4 MI WEST/TM 0022/FL030/TP CL60/RM BASES 030 TOPS 055
```
Report
a routine report filed through SEE
Where
4 mi west
Time
00:22 UTC
Height
at 3,000 ft
Aircraft
CL60
Remarks
bases 3,000 ft tops 5,500 ft

16 more routine reports are on the map.

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 11 forecast points nearest it (SAN, BLH, PRC, FMN, ALS, PUB, GLD, GRI, OMA, DSM, MCW). A plus sign is a headwind, a minus sign a tailwind.

Height	Average wind	Head- or tailwind	Temperature	Ground speed	Time en route	Arrival
5,500 ft	210° at 27 kt	−23 kt	19 °C	143 kt	9 h 10 min	5:49 am CDT (10:49 UTC)
7,500 ft	220° at 26 kt	−23 kt	12 °C	143 kt	9 h 10 min	5:49 am CDT (10:49 UTC)
9,500 ft	220° at 25 kt	−23 kt	10 °C	143 kt	9 h 10 min	5:49 am CDT (10:49 UTC)
11,500 ft	220° at 26 kt	−25 kt	5 °C	145 kt	9 h 02 min	5:41 am CDT (10:41 UTC)
13,500 ft	230° at 29 kt	−28 kt	1 °C	148 kt	8 h 51 min	5:30 am CDT (10:30 UTC)
15,500 ft	230° at 33 kt	−33 kt	-3 °C	153 kt	8 h 34 min	5:13 am CDT (10:13 UTC)
17,500 ft	230° at 37 kt	−37 kt	-7 °C	157 kt	8 h 21 min	5:00 am CDT (10:00 UTC)
18,000 ft FL180	230° at 39 kt	−38 kt	-8 °C	158 kt	8 h 18 min	4:57 am CDT (09:57 UTC)
24,000 ft FL240	230° at 46 kt	−45 kt	-19 °C	165 kt	7 h 57 min	4:36 am CDT (09:36 UTC)
30,000 ft FL300	230° at 57 kt	−57 kt	-30 °C	177 kt	7 h 24 min	4:03 am CDT (09:03 UTC)
34,000 ft FL340	240° at 62 kt	−63 kt	-37 °C	183 kt	7 h 10 min	3:49 am CDT (08:49 UTC)
39,000 ft FL390	250° at 56 kt	−57 kt	-48 °C	177 kt	7 h 24 min	4:03 am CDT (09:03 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
SAN	used from 0 nm out; 25 nm from the line	200/10	240/19 9°	240/27 5°	230/22 -1°	220/40 -10°	220/49 -19°	220/54 -29°	220/61 -35°	220/56 -44°
BLH	used from 50 nm out; 63 nm from the line	230/22	210/24 11°	230/23 5°	230/26 0°	220/38 -10°	230/52 -19°	220/58 -28°	220/69 -34°	220/59 -45°
PRC	used from 199 nm out; 50 nm from the line			200/36 6°	210/46 0°	220/60 -10°	220/75 -19°	220/66 -26°	230/70 -33°	230/59 -45°
FMN	used from 397 nm out; 84 nm from the line			220/25 13°	220/28 4°	210/51 -9°	220/59 -21°	230/78 -30°	230/77 -36°	230/66 -46°
ALS	used from 546 nm out; 65 nm from the line				210/32 5°	230/48 -8°	230/49 -20°	230/78 -30°	240/74 -36°	240/61 -47°
PUB	used from 646 nm out; 41 nm from the line			210/24 16°	210/28 8°	230/43 -8°	240/42 -21°	240/77 -30°	240/72 -36°	250/51 -47°
GLD	used from 795 nm out; 37 nm from the line		190/29	200/30 15°	240/23 8°	250/39 -7°	230/39 -19°	230/57 -31°	240/67 -39°	250/62 -49°
GRI	used from 944 nm out; 62 nm from the line		210/31 19°	240/21 14°	240/17 6°	260/27 -7°	260/34 -18°	240/45 -32°	250/56 -40°	260/62 -51°
OMA	used from 1093 nm out; 28 nm from the line	190/34	230/34 19°	250/25 12°	250/18 6°	250/22 -7°	250/28 -19°	260/34 -32°	260/39 -41°	280/56 -51°
DSM	used from 1192 nm out; 45 nm from the line	200/32	240/27 17°	260/19 10°	260/16 5°	260/19 -7°	240/22 -19°	270/20 -32°	270/38 -42°	290/58 -53°
MCW	used from 1291 nm out; 50 nm from the line	200/35	240/33 18°	250/20 10°	260/10 6°	270/18 -8°	260/28 -19°	280/30 -34°	290/49 -43°	280/70 -54°

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
SAN San Diego, CA	departure	marginal VFR Sky: a broken layer at 2,900 feet, overcast at 4,300 feet Weather: light rain	from the southwest (230°) at 7 knots	6 mi	2,900 ft	16 ft	6:12 pm PDT (01:12 UTC)
RNM Ramona, CA	20 nm out, 8 nm north of the line, tower	marginal VFR Sky: a broken layer at 1,700 feet, a broken layer at 2,600 feet, overcast at 3,900 feet Weather: rain, mist	from the south (180°) at 10 knots	5 mi	1,700 ft	1,394 ft	01:33 UTC
HII Lake Havasu City, AZ	179 nm out, 15 nm northwest of the line	VFR Sky: a few clouds at 4,600 feet, scattered clouds at 6,000 feet	from the south (190°) at 10 knots	10+ mi	none	782 ft	01:15 UTC
CMR Williams, AZ	288 nm out, 6 nm east of the line	marginal VFR Sky: scattered clouds at 1,500 feet, a broken layer at 2,100 feet, overcast at 4,200 feet Weather: mist	from the south-southwest (200°) at 15 knots, gusting to 26	6 mi	2,100 ft	6,690 ft	23:35 UTC
FMN Farmington, NM	507 nm out, 25 nm south of the line, tower	VFR	from the west (270°) at 9 knots	10+ mi	none	5,506 ft	00:53 UTC
DRO Durango, CO	536 nm out, 14 nm south of the line	VFR Sky: scattered clouds at 7,000 feet, a broken layer at 8,500 feet	from the southwest (220°) at 8 knots	10+ mi	8,500 ft	6,689 ft	00:53 UTC
COS Colorado Springs, CO	705 nm out, 8 nm north of the line, tower	VFR Sky: a few clouds at 7,000 feet, a broken layer at 10,000 feet, a broken layer at 17,000 feet, a broken layer at 20,000 feet	from the west-southwest (240°) at 14 knots, gusting to 25	10+ mi	10,000 ft	6,187 ft	00:54 UTC
SYF St Francis, KS	854 nm out, 1 nm north of the line	VFR	from the south-southeast (160°) at 10 knots	10+ mi	none	3,429 ft	01:15 UTC
GRI Grand Island, NE	1033 nm out, 5 nm northwest of the line, tower	VFR	from the south-southeast (160°) at 9 knots	10+ mi	none	1,847 ft	00:53 UTC
OMA Omaha, NE	1142 nm out, 19 nm south of the line, tower	VFR Sky: a broken layer at 25,000 feet	from the south-southeast (160°) at 9 knots	10+ mi	25,000 ft	984 ft	00:52 UTC
EFW Jefferson, IA	1222 nm out, 4 nm southwest of the line	no report just now				1,047 ft
ALO Waterloo, IA	destination	VFR	from the south (170°) at 10 knots	10+ mi	none	873 ft	7:54 pm CDT (00:54 UTC)

The highest airport on this list sits at 6,690 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At ALO when you get there the forecast at the estimated arrival, 3:49 am CDT (08:49 UTC)

Wind from the south at 9 knots, visibility more than 6 miles, low-level wind shear, a broken layer at 25,000 feet VFR

The whole forecast for ALO

From Sun 7:00 pm CDT (00:00 UTC): wind from the south at 9 knots, gusting to 19, visibility more than 6 miles, scattered clouds at 25,000 feet
From Sun 10:00 pm CDT (03:00 UTC): wind from the south at 9 knots, visibility more than 6 miles, low-level wind shear, a broken layer at 25,000 feet
From Mon 7:00 am CDT (12:00 UTC): wind from the south at 8 knots, visibility more than 6 miles, a few clouds at 25,000 feet
From Mon 2:00 pm CDT (19:00 UTC): wind from the south-southwest at 13 knots, gusting to 19, visibility more than 6 miles, a few clouds at 25,000 feet

The forecast for SAN, the departure

From Sun 5:00 pm PDT (00:00 UTC): wind from the southwest at 11 knots, visibility more than 6 miles, scattered clouds at 2,800 feet, a broken layer at 3,500 feet and more above
From Sun 8:00 pm PDT (03:00 UTC): wind from the south-southwest at 7 knots, visibility more than 6 miles, a few clouds at 2,500 feet, a broken layer at 3,500 feet
From Sun 11:00 pm PDT (06:00 UTC): wind from the southwest at 6 knots, visibility more than 6 miles, showers nearby, scattered clouds at 2,500 feet, a broken layer at 3,500 feet
From Mon 12:00 pm PDT (19:00 UTC): wind from the west-southwest at 10 knots, gusting to 17, visibility more than 6 miles, a few clouds at 2,500 feet, a broken layer at 5,000 feet
From Mon 5:00 pm PDT (00:00 UTC): wind from the west-southwest at 8 knots, visibility more than 6 miles, a broken layer at 5,000 feet

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

6/4812 El Centro, CA, Wednesday, July 15, 2026 through Tuesday, July 13, 2027 Local 16 nm from the route, 70 nm along the route · security · until 13 July · ZLA
6/8887 Indio, CA, Sunday, October 11, 2026 through Monday, October 12, 2026 Local 20 nm from the route, 70 nm along the route · security · until 12 October · ZLA
6/8891 Bullhead City, AZ, Wednesday, October 14, 2026 Local 20 nm from the route, 189 nm along the route · a VIP movement · starts Wednesday 14 October · ZLA
6/8770 COLORADO SPRINGS, CO, Saturday, October 10, 2026 through Monday, October 12, 2026 UTC 21 nm from the route, 705 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 12 October · ZDV

Daylight

Sunset at SAN 6:19 pm PDT (01:19 UTC), at ALO 6:32 pm CDT (23:32 UTC) (civil twilight ends 7:00 pm CDT (00:00 UTC)). At 120 knots the arrival at ALO is before sunrise there (7:18 am CDT (12:18 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 southern 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: San Diego International, Waterloo Regional.