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WATERTOWN RGNL - Airport Diagram
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KATY
ICAO KATYIATA ATYLocal ATY
WATERTOWN RGNL
PublicPUB

2 miles NW of WATERTOWN, SD, US
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Status
Operational
Coordinates
44° 54' 50"N 97° 09' 17"W
Elevation
1749' MSL
Pattern Alt
2749' MSL
Mag Variation
3°E
Declination
6°E
Fuel
JET A, 100LL
FSS
HURON (HON)
Sectional
TWIN CITIES
ARTCC
MINNEAPOLIS (ZMP)
Data Effective
5/14/26-6/11/26
KATY VFR
1:53 AM CDT  
Clear
10sm
64°F
61°F
29.94"Hg
170° 15kts
Gusts 23kts
AO2 SLP129 T01780161
METAR KATY 040653Z AUTO 17015G23KT 10SM CLR 18/16 A2994 RMK AO2 SLP129 T01780161
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KATY FBOs

ATY Aviation
UNICOM: 123.05
Phone: (605) 753-1230
No Rating Available
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Avfuel
As of 5/16
 100LL JET A JET A (FSII) MOGAS UL94
Self Serve 6.90
Full Serve 7.40 7.00
Fuel Notes
Prices include tax

KATY Flight Schools & Aircraft Rental

Promote Listing
Lake Area Technical Institute
Phone: (605) 882-6311
Fax: (605) 882-6345
No Rating Available
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KATY Ground Transportation (Taxi, Limo, Car Service)

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Lake City Rentals
Phone: (605) 886-8826
No Rating Available
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KATY Hotels

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Ramkota Best Western Hotel
Phone: (605) 886-8011
No Rating Available
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KATY Other Businesses

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Great Lakes Airlines
UNICOM: 128.925
Phone: (605) 886-9300
Fax: (605) 886-9301
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Weather and Advisory

ASOS 126.625
(605) 882-0578

Common

CTAF 123.05
ACTVT MALSR RWY 35; PAPI RWY 12, 17, 30, & 35; HIRL RWY 17/35; MIRL RWY 12/30; REIL RWY 12, 17, & 30 - CTAF.
UNICOM 123.05

Center

MINNEAPOLIS CENTER 128.5
LOW, APCH/DEP SVC PRVDD BY MINNEAPOLIS ARTCC ON FREQS 128.5/306.2 (WATERTOWN RCAG).

Flight Service

Flight Service 122.5
(HON)

Terminal Area Forecast

KATY
Thu, 6/4 12:40 AM CDT
Thu, 6/4 1:00 AM CDT - Fri, 6/5 1:00 AM CDT
MVFR
Temporary 1:00 AM CDT - 2:00 AM CDT
Light Thunderstorm and Rain
Broken 4,000'
4sm
Calm
VFR
1:00 AM CDT - 5:00 AM CDT
Overcast 11,000'
Scattered 4,000'
6sm
180° 9kts
MVFR
5:00 AM CDT - 9:00 AM CDT
Overcast 2,900'
Broken 1,800'
6sm
210° 5kts
MVFR
9:00 AM CDT - 12:00 PM CDT
Broken 2,600'
Scattered 2,400'
6sm
VRB° 3kts
VFR
12:00 PM CDT - 7:00 PM CDT
Scattered 8,000'
Few 3,000'
6sm
VRB° 3kts
MVFR
3:00 PM CDT - 7:00 PM CDT
Light Thunderstorm and Rain
Broken 4,000'
Broken 3,500'
4sm
Calm
VFR
7:00 PM CDT - 1:00 AM CDT
Light Showers and Rain
Broken 9,000'
Scattered 4,000'
6sm
130° 6kts
MVFR
7:00 PM CDT - 1:00 AM CDT
Thunderstorm and Rain
Broken 4,000'
3sm
Calm
TAF KATY 040540Z 0406/0506 18009KT P6SM SCT040 OVC110
   TEMPO 0406/0407 4SM -TSRA BKN040CB
   FM041000 21005KT P6SM BKN018 OVC029
   FM041400 VRB03KT P6SM SCT024 BKN026
   FM041700 VRB03KT P6SM FEW030 SCT080
   PROB30 0420/0424 4SM -TSRA BKN035CB BKN040
   FM050000 13006KT 6SM -SHRA SCT040 BKN090
   PROB30 0500/0506 3SM TSRA BKN040CB
KATY
EffectiveExpiresCategoryNOTAM
Domestic
6/4/26
1500Z
6/4/26
2000Z
!ATY 06/005 ATY NAV TACAN U/S 2606041500-2606042000
6/4/26
0058Z
6/4/26
1030Z
!ATY 06/006 ATY AD AP SFC COND NOT REP 2606040058-2606041030
5/21/26
1309Z
6/21/26
2300Z
!ATY 05/047 ATY OBST TOWER LGT (ASR 1318818) 445515.45N0965336.70W (11.1NM E ATY) 2359FT (333FT AGL) U/S 2605211309-2606212300
5/14/26
2248Z
7/17/26
2359Z
!ATY 05/026 ATY OBST TOWER LGT (ASR 1268542) 450109.70N0965643.90W (10.9NM NE ATY) 2477.0FT (498.0FT AGL) U/S 2605142248-2607172359
5/5/26
0130Z
6/19/26
0129Z
!ATY 05/008 ATY OBST TOWER LGT (ASR 1037198) 444909.00N0971151.00W (6.0NM SSW ATY) 1985.9FT (169.9FT AGL) U/S 2605050130-2606190129
4/23/26
1339Z
8/14/26
2200Z
!ATY 04/151 ATY TWY D1 HLDG PSN SIGN NOT LGTD 2604231339-2608142200
4/16/26
1939Z
8/5/26
2200Z
Runway!ATY 04/132 ATY RWY 17/35 WIP CONST ADJ N SIDE 2604161939-2608052200
4/16/26
1447Z
8/5/26
2200Z
!ATY 04/131 ATY TWY B BTN AIR CARRIER RAMP AND APCH END RWY 17 CLSD 2604161447-2608052200
3/26/26
2044Z
9/30/26
2359Z
!ATY 03/194 ATY OBST TOWER LGT (ASR 1206577) 450617.00N0965918.00W (13.5NM NNE ATY) 2876.0FT (875.0FT AGL) U/S 2603262044-2609302359
FDC
4/10/26
1259Z
!FDC 6/0830 ATY IAP WATERTOWN RGNL, WATERTOWN, SD.
ILS OR LOC RWY 35, AMDT 12...
NOTE: AUTOPILOT COUPLED APPROACH NA BELOW 1910.
2604101259-2804101259EST
No
0430-2030
CITY OF WATERTOWN
P.O. BOX 910
WATERTOWN, SD 57201
Phone: 605-882-6209
IAN MERIWETHER-CHALFANT
550 E AIRPORT DRIVE
WATERTOWN, SD 57201
Phone: 605-753-9357
HURON FSS (HON)
Toll Free: 1-800-WX-BRIEF
ATY
--
ACTVT MALSR RWY 35; PAPI RWY 12, 17, 30, & 35; HIRL RWY 17/35; MIRL RWY 12/30; REIL RWY 12, 17, & 30 - CTAF.
N/A
Yes - Lighted
Yes
Yes
Hanger, Tie-Down
NOT a Landing Rights Airport
NOT an Airport of Entry
Major
Major
None
None
Air Freight
Crop Dusting
Air Ambulance
Cargo Handling
Charter Service
Pilot Instruction
Aircraft Rental
Aircraft Sales

Runway 12/30

6898 ft. x 100 ft.
CONC  
Excellent 
GRVD 
MED 
 
80,000lbs 
97,000lbs 
160,000lbs 
-- 
  Runway 12 Runway 30
True Heading 125°305°
Traffic Pattern Left Left
Markings NPI NPI
Markings Condition GOOD GOOD
Latitude 44° 55' 20"N 44° 54' 41"N
Longitude 97° 10' 09"W 97° 08' 51"W
Elevation 1,748' 1,733'
Threshold Crossing Height 48 ft. AGL 34 ft. AGL
Visual Glide Path Angle 3° 3°
Visual Slope Indicator P4L P4L
Approach Lights
Centerline Lights
Runway End Identifier Lights Yes Yes

Runway 17/35

6893 ft. x 100 ft.
CONC  
Good 
GRVD 
HIGH 
 
120,000lbs 
177,000lbs 
301,000lbs 
-- 
  Runway 17 Runway 35
True Heading 180°0°
Traffic Pattern Left Left
Markings PIR PIR
Markings Condition GOOD GOOD
Latitude 44° 55' 14"N 44° 54' 06"N
Longitude 97° 09' 04"W 97° 09' 04"W
Elevation 1,741' 1,743'
Threshold Crossing Height 35 ft. AGL 54 ft. AGL
Visual Glide Path Angle 3° 3°
Visual Slope Indicator P4L P4L
Approach Lights MALSR
Centerline Lights
Runway End Identifier Lights Yes
A110-1GULLS & GEESE ON & INVOF ARPT APR-NOV.
A110-3GLIDER OPNS APR THRU SEP.
A110-4ANNUALLY APRIL- SEPT HAY CUTTING OPNS IN PROGRESS; FARMING EQUIP MAY BE IN APCHS.
A110-5ACR OPNS INVOLVING ACFT WITH MORE THAN 9 PSGRS ARE NOT AUZD IN EXCESS OF 15 MINS BEFORE OR AFTER SKED ARR/DEP TIMES WITHOUT PRIOR COORDINATION WITH AMGR AND CFMN THAT ARFF IS AVBL PRIOR TO LANDING OR TAKEOFF.
A110-8ARPT SFC COND NOT MONITORED 2230-0430.
A110-9FOR CD IF UNA TO CTC ON FSS FREQ, CTC MINNEAPOLIS ARTCC AT 651-463-5588.
A16605-753-9357
A26PPR 48 HRS UNSKED ACR OPNS WITH MORE THAN 30 PSGR SEATS CALL AMGR 605 882-6209.
A39-12/30PCR VALUE: 509/R/D/W/T
A39-17/35PCR VALUE: 491/R/D/W/T
A81-APTACTVT MALSR RWY 35; PAPI RWY 12, 17, 30, & 35; HIRL RWY 17/35; MIRL RWY 12/30; REIL RWY 12, 17, & 30 - CTAF.
WATERTOWN RGNL (ICAO: KATY, IATA: ATY) is a public airport located in WATERTOWN, SD, US.