Watertown Regional Airport
ATY · KATY · Watertown, SD · Non-towered · Print kneeboard
FAA airport diagramView full size ↓ Nearby now
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Weather
METAR observed
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TAF forecast
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Sun & FAA night2026-08-04 · night begins 09:25 PM
| Event | Local (CDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 05:44 AM | 10:44Z |
| Sunrise | 06:17 AM | 11:17Z |
| Sunset | 08:51 PM | 01:51Z |
| Evening civil twilight Loggable night begins | 09:25 PM | 02:25Z |
Plan a flight from KATY
Past 24 hours category · wind · ceiling · visibility trends
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Density altitude today projected curve · departure window · takeoff roll
Winds aloft NOAA forecast · 3,000 to 53,000 ft
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Advisories
NOTAMs
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Pilot reports
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Airspace hazards
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Runways
RWY 12LEFT traffic
- Heading
- 119° mag · 125° true
- Dimensions
- 6,898 × 100 ft
- TPA
- 2,700 ft MSL (≈1,000 AGL) · standard
- Surface
- Concrete
- Lights
- 4-light PAPI (left) (3°)
- CTAF
- 123.05
Enter the left downwind (heading 299°) on the 45° at 2,700 ft MSL (≈1,000 AGL).
More details — RWY 12
- Threshold elev
- 1,748 ft
- Markings
- nonprecision
- Threshold crossing height
- 48 ft
- TDZ elevation
- 1,749 ft
- Declared TORA/TODA/ASDA/LDA
- 6,899 / 6,899 / 6,899 / 6,899 ft
- End lights
- REIL
Pattern side: FAA NASR · TPA standard 1,000 ft AGL (not charted) · layout: FAA runway-end coordinates
| Runway | Length | Your margin |
|---|---|---|
| 12/30 | 6,898 ft | |
| 17/35 | 6,893 ft |
Prefer one flat page? Full runway details for KATY → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the KATY kneeboard →
Comms & NavAids
Communication frequencies
Before taxi
“Watertown”Taxi & takeoff
“Watertown”Also
By procedure & sector (1 frequencies)
| Frequency | Used by |
|---|---|
| 306.2 | WATERTOWN RCAG (LOW) |
Source: FAA NASR (current 28-day cycle).
Instrument landing systems
RWY 35
| Runway | ILS |
|---|---|
| RWY 35 | ILS/DME · CAT I · LOC 111.9 (ATY) · GS 3.00° |
Source: FAA NASR (current 28-day cycle).
Nearby navigation aids
ATY 116.60
| NavAid | Type | Freq · ch | Range | Radial / Dist magnetic |
|---|---|---|---|---|
| ATY · Watertown | TACAN | 116.60 · 113X | — | r179° / 4 NM |
Prefer one flat list? All KATY frequencies →
Charts & procedures
Lowest minimums here: ILS with vertical guidance · VFR sectional →
Airport info
From the field
Do you run KATY, or an FBO, flight school, or shop on it? Claim your listing to keep fuel, fees, hours, and services current.
Airport information
- ICAO / IATA
- KATY / ATY
- Coordinates
- 44.9140, -97.1547
- Elevation
- 1,749 ft MSL
- Magnetic variation
- 6E
- Sectional chart
- TWIN CITIES
- Airport use
- Public
- Control tower
- No
- Airspace
- Class E
- Weather station
- ASOS · 126.625 · ☎ 605-882-0578
- ARTCC
- MINNEAPOLIS (ZMP)
- Flight service (FSS)
- HURON · 122.5 · 1-800-WX-BRIEF
- FSS outlet
- RCO → Huron Radio (24)
- NOTAM facility
- ATY
- Attendance
- ALL 0430-2030
- Beacon
- white-green (SS-SR)
- Segmented circle
- Yes
- Wind indicator
- lighted
- FAR 139 class
- I A
- Landing fee
- Yes
- Activated
- 1937/12
- Distance from city
- 2 NW
Night operations
- Airport lighting
- SEE RMK
- Rotating beacon
- white-green · SS-SR
- Pilot-controlled lighting
- ACTVT MALSR RWY 35; PAPI RWY 12, 17, 30, & 35; HIRL RWY 17/35; MIRL RWY 12/30; REIL RWY 12, 17, & 30 - CTAF. on 123.05 — Chart Supplement ↗
Runway lighting aids — 12: 4-light PAPI (left) · 30: 4-light PAPI (left) · 17: 4-light PAPI (left) · 35: 4-light PAPI (left) + MALSR.
FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are under Sun & FAA night in the Weather section.
Services fuel · repairs · oxygen · attendance
- Fuel available
- 100LL, Jet A
- Airframe service
- MAJOR
- Powerplant service
- MAJOR
- Parking
- tiedowns, hangars
- Other services
- Air freight, Agricultural, Air ambulance, Cargo, Charter, Instruction, Rental, Aircraft sales
Ownership & management 2 contacts
Remarks FAA · 10 notes
General
- GULLS & GEESE ON & INVOF ARPT APR-NOV.
- GLIDER OPNS APR THRU SEP.
- ANNUALLY APRIL- SEPT HAY CUTTING OPNS IN PROGRESS; FARMING EQUIP MAY BE IN APCHS.
- ARPT SFC COND NOT MONITORED 2230-0430.
- FOR CD IF UNA TO CTC ON FSS FREQ, CTC MINNEAPOLIS ARTCC AT 651-463-5588.
- GLDR OPNS PROHIBITED ON TWY D.
Runways
- PCR VALUE: 509/R/D/W/T
- PCR VALUE: 491/R/D/W/T
Lighting
- ACTVT MALSR RWY 35; PAPI RWY 12, 17, 30, & 35; HIRL RWY 17/35; MIRL RWY 12/30; REIL RWY 12, 17, & 30 - CTAF.
Contact
- 605-753-9357
Embed KATY weather on your site free widget for schools, clubs & FBOs
Live METAR, flight category, and favored runway for KATY — paste this into your website's HTML. It updates automatically and stays free.
More widgets — crosswind, E6B, density altitude — on the embed page.
Nearby airports
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Also nearby: 5H3 Clear Lake Municipal Airport (22 NM) · 8D7 Clark County Airport (24 NM) · 1SD8 Tribitt Airport (27 NM) · SD19 Andersen Farms Airport (private) (27 NM) · 1D7 The Sigurd Anderson Airport (27 NM) · 00SD Homan Field (private) (29 NM)
About KATY
Watertown Regional Airport (ATY · KATY) is an airport in Watertown, SD, at 1,749 ft MSL. It has 2 runways, the longest 6,898 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for KATY, refreshed from the Aviation Weather Center and FAA NASR.
Does KATY have a control tower?
No. Watertown Regional Airport is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM in the Comms & NavAids section.
What is the longest runway at KATY?
Watertown Regional Airport has 2 runways; the longest is 6,898 ft. See the Runways section for headings, surface, and lighting.
Where is KATY?
Watertown Regional Airport is in Watertown, SD, at an elevation of 1,749 ft MSL. Coordinates: 44.9140, -97.1547.
Fly out of KATY often?
Save KATY as your home base in the SkyReady app for a one-tap Go/No-Go readiness brief, weather alerts, and automatic FAA currency — free to log.
Weather is live from the Aviation Weather Center; airport facility data is from the FAA NASR (28-day cycle). For planning and education only; always verify against official sources. Open KATY in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator. Planning from here? Find the nearest airport with fuel or an approach, or check whether an IFR alternate is required.