WxDecoder

2SD4 Weather Nicolaisen Airport

Mount Vernon, South DakotaElevation 1,440 ftSmall airport
OFF-FIELD REFERENCE
Nearest report: KMHE · 11 NM NE · More than 1 hour old
Ceiling 4,500 ft, visibility 10 SM.
No on-field report, so no field flight category. Conditions at the field may differ.
OFF-FIELD REFERENCE · KMHE
WIND
040@7
steady
VISIBILITY
10 SM
16.1 km
CEILING
4,500 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 10° at 7 kt, visibility 10 SM, temperature 6C. Treat this as supplemental, not an aviation observation. Forecast suggests tonight rain showers, low near 33F, 76% chance of precipitation. Key risks: strong winds in the forecast.

PILOT WEATHER NOTES
Strong winds in the forecastWeather.gov
Monday: winds up to 26 kt. Re-check crosswind components closer to departure.
DayConditionsTemp FWindGustsPrecipPilot note
Tonight Rain Showers 33 NE 13 kt – 76%
Monday Rain Showers 45/32 ENE 13 kt 26 kt 100% Strong winds in the forecast
Tuesday Partly Sunny 57/40 SW 13 kt 22 kt 4%
Wednesday Mostly Sunny 63/37 WSW 9 kt – 11%
Thursday Mostly Sunny 64/43 ENE 9 kt – 4%
Friday Partly Sunny then Slight Chance Rain Showers 65/47 ESE 9 kt – 54%
Saturday Chance Rain Showers 62/43 SSE 9 kt – 54%
Sunday Partly Sunny 60 NW 9 kt – 6%

Source: National Weather Service (office FSD). Forecast issued 0456Z.

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 2SD4. Enter a runway number or heading to estimate wind components.
RUNWAYS

Runway detail & declared distances

1 runway · longest 2,800 ft

N/S
Dimensions
2,800 x 50 ft
Surface
Turf
RWY N
RWY S

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
1,440 ft MSL

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

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
2334Z 6:34 PM
Sunrise
1300Z 8:00 AM
Loggable night
0003Z (7:03 PM local) → 1231Z (7:31 AM local)
end of evening to start of morning civil twilight
Position lights required
2334Z (6:34 PM local) → 1300Z (8:00 AM local)
sunset to sunrise (91.209)
Night passenger currency
0034Z (7:34 PM local) → 1200Z (7:00 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

Nicolaisen Airport is in Mount Vernon, South Dakota. Field elevation 1,440 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPrivately owned
UsePrivate use
TypeSmall airport
ManagerRICHARD D NICOLAISEN
Manager phone605-236-5581
AttendedUNATNDD
CHARTS & AIRSPACE
ICAO / IATA2SD4
SectionalOMAHA
Center (ARTCC)MINNEAPOLIS
Flight service (AFSS)HURON
RegionSouth Dakota
CountryUnited States
Coordinates43.6825, -98.2661
Distance from city2 NM S
SERVICES & LIGHTING
Control towerNon-towered
AIRCRAFT ACTIVITY

Traffic patterns

Aircraft activity data is not available for this airport yet.

NEARBY AIRPORTS

Weather reference stations

2SD4 has no on-field report. Nearest reporting station: KMHE (11 NM NE, VFR).

KMHE Mitchell Municipal Airport
11 NM NE
VFR
KHON Huron Regional Airport
42 NM N
VFR
KMDS Madison Municipal Airport
55 NM E
VFR
KYKN Chan Gurney Municipal Airport
60 NM SE
MVFR
KFSD Sioux Falls Regional Airport
67 NM E
VFR
KBKX Brookings Regional Airport
73 NM NE
VFR
AIRPORT REMARKS

Operational remarks

›FOR CD CTC MINNEAPOLIS ARTCC AT 651-463-5588.
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗2SD4 on OurAirports
FREQUENTLY ASKED
Does 2SD4 have a METAR?
No on-field METAR is issued for 2SD4. This page uses the nearest reporting station as a reference.
Does 2SD4 have a TAF?
No TAF is issued directly for 2SD4. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at 2SD4?
2SD4 sits at 1,440 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for 2SD4?
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.