WxDecoder

15SD Weather Watertown / Brownlee Heliport

South DakotaElevation 1,720 ftHeliport
OFF-FIELD REFERENCE
Nearest report: KATY · 3 NM NW · 29 min old
Ceiling 4,200 ft, visibility 10 SM, rain.
No on-field report, so no field flight category. Conditions at the field may differ.
OFF-FIELD REFERENCE · KATY
WIND
020@14
steady
VISIBILITY
10 SM
16.1 km
CEILING
4,200 ft
lowest BKN/OVC
FORECAST & PILOT NOTES · SUPPLEMENTAL

Extended forecast and pilot notes

No aviation METAR is published for this airport. The nearest National Weather Service station reports wind from 20° at 12 kt, visibility 10 SM, temperature 3C. Treat this as supplemental, not an aviation observation. Forecast suggests tonight light rain, low near 35F, 93% chance of precipitation. Key risks: strong winds in the forecast.

PILOT WEATHER NOTES
Strong winds in the forecastWeather.gov
Monday: winds up to 25 kt. Re-check crosswind components closer to departure.
DayConditionsTemp FWindGustsPrecipPilot note
Tonight Light Rain 35 NE 10 kt 19 kt 93%
Monday Rain 40/35 ENE 14 kt 25 kt 100% Strong winds in the forecast
Tuesday Mostly Cloudy 53/41 WSW 11 kt 21 kt 11%
Wednesday Mostly Sunny then Slight Chance Light Rain 61/38 WSW 8 kt – 18%
Thursday Mostly Sunny 60/41 ENE 8 kt – 6%
Friday Partly Sunny then Slight Chance Light Rain 61/45 E 10 kt – 53%
Saturday Light Rain Likely 59/42 SE 10 kt – 57%
Sunday Partly Sunny 58 NW 9 kt – 12%

Source: National Weather Service (office ABR). Forecast issued 0346Z.

Radar

Radar data: NOAA/NWS MRMS composite reflectivity. For situational awareness only, not a substitute for an official weather briefing.

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RUNWAYS & WIND
Crosswind calculator
No runway layout is available for 15SD. Enter a runway number or heading to estimate wind components.
RUNWAYS

Runway detail & declared distances

1 runway

H1
Dimensions
35 x 40 ft
Surface
Concrete
RWY H1

Runway data from the FAA NASR dataset (effective 2026-06-11). Verify with the current Chart Supplement and NOTAMs.

FIELD CONDITIONS

Field elevation

Field elevation
1,720 ft MSL

Density and pressure altitude need a current temperature and altimeter from the METAR.

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
2327Z 6:27 PM
Sunrise
1258Z 7:58 AM
Loggable night
2357Z (6:57 PM local) → 1228Z (7:28 AM local)
end of evening to start of morning civil twilight
Position lights required
2327Z (6:27 PM local) → 1258Z (7:58 AM local)
sunset to sunrise (91.209)
Night passenger currency
0027Z (7:27 PM local) → 1158Z (6:58 AM local)
1 hr after sunset to 1 hr before sunrise (61.57(b))

FAA definitions, shown in Zulu with airport-local time. Verify for your operation.

AIRPORT INFORMATION

Facility & services

Watertown / Brownlee Heliport is in South Dakota. Field elevation 1,720 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPrivately owned
UsePrivate use
TypeHeliport
ManagerRANDY BROWNLEE
Manager phone605-880-5402
AttendedUNATNDD
CHARTS & AIRSPACE
ICAO / IATA15SD
SectionalTWIN CITIES
Center (ARTCC)MINNEAPOLIS
Flight service (AFSS)HURON
RegionSouth Dakota
CountryUnited States
Coordinates44.8833, -97.1081
Distance from city3 NM NW
SERVICES & LIGHTING
Control towerNon-towered
AIRCRAFT ACTIVITY

Traffic patterns

Aircraft activity data is not available for this airport yet.

NEARBY AIRPORTS

Weather reference stations

15SD has no on-field report. Nearest reporting station: KATY (3 NM NW, VFR).

KATY Watertown Regional Airport
3 NM NW
VFR
KBKX Brookings Regional Airport
37 NM S
VFR
KMDS Madison Municipal Airport
52 NM S
VFR
KHON Huron Regional Airport
56 NM SW
VFR
KMVE Montevideo Chippewa County Airport
60 NM E
VFR
KMML Southwest Minnesota Regional Airport - Marshall/Ryan Field
61 NM SE
VFR
AIRPORT REMARKS

Operational remarks

›FOR CD CTC MINNEAPOLIS ARTCC AT 651-463-5588.
›PRVDD VFR OPNS AND PVT USE ONLY; TKOF/LNDG AREA MKD.
›30 FT POLE 150 FT S & W OF PAD.
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗15SD on OurAirports
FREQUENTLY ASKED
Does 15SD have a METAR?
No on-field METAR is issued for 15SD. This page uses the nearest reporting station as a reference.
Does 15SD have a TAF?
No TAF is issued directly for 15SD. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at 15SD?
15SD sits at 1,720 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for 15SD?
No. wxdecoder.com is for education and situational awareness only. It is not an official weather briefing or a substitute for official sources, NOTAM review, and pilot judgment.
This app is for aviation weather education, training, and situational awareness only. It is not a substitute for an official weather briefing, approved flight-planning software, flight service, dispatch procedures, current FAA regulations, or pilot judgment. Always verify weather with official sources before flight.