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41IL Great Lakes Seaplane Base
Antioch, Illinois, USA

FAA INFORMATION EFFECTIVE 25 DECEMBER 2025

Location

FAA Identifier: 41IL
Lat/Long: 42-27-59.5700N 088-07-58.2100W
42-27.992833N 088-07.970167W
42.4665472,-88.1328361
(estimated)
Elevation: 737 ft. / 225 m
From city: 2 miles WSW of ANTIOCH, IL
Time zone: UTC -6 (UTC -5 during Daylight Saving Time)
Zip code: 60002

Seaplane Base Operations

Seaplane Base use: Private use. Permission required prior to landing
Activation date: 04/2022
Control tower: no
ARTCC: CHICAGO CENTER
FSS: KANKAKEE FLIGHT SERVICE STATION
Attendance: 
Segmented circle: no

Seaplane Base Communications

WX ASOS at ENW (12 nm NE): PHONE 262-652-7730
WX ASOS at UGN (12 nm E): PHONE 847-782-0876
WX AWOS-3 at BUU (15 nm NW): 125.275 (262-757-0907)

Nearby radio navigation aids

VOR radial/distance  VOR name  Freq  Var
OBKr333/16.8NORTHBROOK VOR/DME113.0002W
DPAr014/35.9DUPAGE VOR/DME114.5502E
BAEr168/39.6BADGER VOR/DME116.4002E

 
NDB name  Hdg/Dist  Freq  Var  ID
WAUKE274/14.737903WUG ..- --.

Seaplane Base Services

Runway Information

Runway 3W/21W

Dimensions: 3451 x 400 ft. / 1052 x 122 m
Surface: water, in fair condition
RUNWAY 3W  RUNWAY 21W
Latitude: 42-27.735667N42-28.250500N
Longitude: 088-08.133167W088-07.808500W
Elevation: 737.0 ft.737.0 ft.
Traffic pattern: leftleft

Seaplane Base Ownership and Management from official FAA records

Ownership: Privately-owned
Owner: TRENT TOBIAS
41072 N. WESTLAKE
ANTIOCH, IL 60002
Phone 847-812-1480
Manager: TRENT TOBIAS
41072 N. WESTLAKE
ANTIOCH, IL 60002
Phone 847-812-1480
FLOAT172@GMAIL.COM

Instrument Procedures

There are no published instrument procedures at 41IL.

Some nearby airports with instrument procedures:

C81 - Campbell Airport (9 nm S)
10C - Galt Field Airport (11 nm W)
KENW - Kenosha Regional Airport (12 nm NE)
KUGN - Waukegan National Airport (12 nm E)
C02 - Grand Geneva Resort Airport (14 nm NW)
KBUU - Burlington Municipal Airport (15 nm NW)
3CK - Lake in the Hills Airport (18 nm SW)
  
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Aerial photo
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Airport distance calculator
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From to 41IL

Sunrise and sunset
Times for 21-Jan-2026
 Local
(UTC-6)		 Zulu
(UTC)
Morning civil twilight06:4612:46
Sunrise07:1713:17
Sunset16:5122:51
Evening civil twilight17:2223:22

Current date and time
Zulu (UTC)  21-Jan-2026 15:32:35
Local (UTC-6)  21-Jan-2026 09:32:35
 
METAR
KENW 
12nm NE 		211453Z 28005KT 7SM SCT050 M06/ A2988
KUGN 
12nm E 		211451Z 27006KT 10SM CLR M06/M07 A2988 RMK AO2 SLP137 60000 T10561067 55006
KBUU 
15nm NW 		211515Z AUTO 24003KT 10SM OVC012 A2989 RMK AO2 PWINO
K57C 
22nm NW 		211515Z AUTO 26004KT 10SM BKN014 BKN020 OVC028 M07/M09 A2988 RMK AO2 T10701087
KRAC 
23nm NE 		211453Z AUTO 28004KT 8SM OVC037 M06/M08 A2989 RMK AO2 SLP132 60000 T10611078 56014
KPWK 
23nm SE 		211452Z 28007KT 10SM SCT065 M03/M06 A2991 RMK AO2 SLP136 6//// T10281061 55005 PNO $
TAF
KENW 
12nm NE 		211316Z 2113/2212 VRB03KT 6SM -SN OVC030 TEMPO 2113/2114 2SM -SN OVC025 FM211400 27007KT P6SM BKN025 FM220000 24012G23KT 1SM -SHSN BLSN OVC020 FM220200 27015G29KT 3SM -SHSN BLSN OVC020 FM220600 29016G30KT 6SM BLSN BKN025 FM220900 28015G29KT P6SM FEW025
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