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Nicolaisen Airport (2SD4) Area Aviation Weather & Runway Winds

As of 6:53 AM CDT, Oct 28, based on the nearest station (KMHE), 2SD4 is currently LIFR with winds from 140° at 6 knots, visibility 1.8 statute miles, and a 300 ft ceiling.

Aviation weather near Nicolaisen Airport in Mount Vernon, SD, decoded from the nearest reporting station (KMHE): conditions and runway crosswinds.

Nicolaisen Airport (2SD4) is a general aviation airport serving pilots in and around Mount Vernon, SD at a field elevation of 1,440 ft. 2SD4 has no weather station of its own. Conditions here are decoded from KMHE, about 11 nm away, the nearest reporting station, and local conditions can differ. It has 2 physical runways (N, S), the longest 2,800 ft. The nearest TAF is issued for KHON.

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LIFR
Observed 1153Z (6:53 AM CDT)live · refreshes every 60s

No weather station at this airport: showing the nearest station KMHE, 11.3 nm away.

Wind
140° 6 kt
Visibility
1.75 sm
Ceiling
300 ft
Altimeter
29.92"
Temp / Dew
54°F / 12°C
dew 53°F / 12°C

Wind from the southeast (140°) at 6 kt, visibility 1.8 statute miles, overcast at 300 ft, temperature 12°C (54°F), altimeter 29.92 inHg. Conditions are Low IFR (LIFR), ceiling 300 ft.

Raw METAR
METAR KMHE 281153Z AUTO 14006KT 1 3/4SM BR OVC003 12/12 A2992 RMK AO2 SLP136 T01220117 10122 20106 56004

What changed at KMHE (nearest station)?

Since the 1148Z (6:48 AM CDT) report, compared automatically against the latest METAR.

No significant changes since the 1148Z (6:48 AM CDT) report, conditions are holding steady.

Current pilot readout for 2SD4

Based on the nearest station (KMHE), 2SD4 is currently LIFR with winds from 140° at 6 knots, visibility 1.8 statute miles, and a 300 ft ceiling. Density altitude is approximately 1,450 ft (field elevation 1,440 ft). 2SD4 does not publish a TAF. The nearest TAF station is KHON, about 42 nm away.

New to aviation weather? How to read a METAR → · What VFR/MVFR/IFR mean → · Decode any METAR/TAF → · Density altitude calculator →

Runway wind check

Estimated head/tailwind and crosswind for each runway end from the current reported wind.

RunwayHead / TailCrosswind
NFAV5 kt tail4 kt right
S5 kt tail4 kt right

Open the crosswind calculator to try your own wind and runway numbers →

24-hour trend

Wind, ceiling and flight category over the last 24 hours.

Wind (kt)Gusts (kt)Bottom strip, flight category:VFRMVFRIFRLIFRNo report
0132512Z23Z11Z

Over the last 23 h: wind 4→6 kt, ceiling 1,000 ft → 300 ft.

2SD4 weather radar

Live NEXRAD + lightning, with a 4-hour future-radar forecast. Drag to pan, tap ⚡ to toggle lightning.

Loading…
Loading radar…

Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © Stadia Maps © OpenMapTiles © OpenStreetMap

NOAA NEXRAD composite and lightning, updated about every five minutes; amber frames are HRRR model guidance, not observed radar. Not for navigation.

Pilot reports (PIREPs) within 100 NM of 2SD4

Reported by pilots in flight over the past 6 hours, via aviationweather.gov.

PIREP1155Z (6:55 AM CDT) · 20 NM NW of 2SD4 · 30,000 ft MSL · C560
Show raw report
HON UA /OV HON200030/TM 1155/FL300/TP C560/TB NEG
HON UAHeader: reporting station and UA: a routine pilot report.
OV HON200030Location: fix or navaid, optionally with a radial and distance in NM.
TM 1155Reported at 11:55 UTC.
FL300Altitude: 30,000 ft MSL.
TP C560Aircraft type reporting.
TB NEGTurbulence: none reported.
PIREP1155Z (6:55 AM CDT) · 66 NM E of 2SD4 · during descent · B350
Show raw report
FSD UA /OV FSD030002/TM 1155/FLDURD/TP B350/SK OVC017-TOP024
FSD UAHeader: reporting station and UA: a routine pilot report.
OV FSD030002Location: fix or navaid, optionally with a radial and distance in NM.
TM 1155Reported at 11:55 UTC.
FLDURDReported during descent.
TP B350Aircraft type reporting.
SK OVC017-TOP024Sky condition: cloud bases and tops in hundreds of feet MSL.
PIREP1138Z (6:38 AM CDT) · 42 NM N of 2SD4 · 34,000 ft MSL · E170
occasional light chop turbulence
Show raw report
HON UA /OV HON/TM 1138/FL340/TP E170/TB OCNL LGT CHOP
HON UAHeader: reporting station and UA: a routine pilot report.
OV HONLocation: fix or navaid, optionally with a radial and distance in NM.
TM 1138Reported at 11:38 UTC.
FL340Altitude: 34,000 ft MSL.
TP E170Aircraft type reporting.
TB OCNL LGT CHOPTurbulence: occasional light chop.
PIREP1123Z (6:23 AM CDT) · 60 NM E of 2SD4 · during climb · C208
Show raw report
FSD UA /OV FSD270005/TM 1123/FLUNKN/TP C208/SK OVC017-TOP052/IC NEG/RM DURC
FSD UAHeader: reporting station and UA: a routine pilot report.
OV FSD270005Location: fix or navaid, optionally with a radial and distance in NM.
TM 1123Reported at 11:23 UTC.
FLUNKNAltitude unknown.
TP C208Aircraft type reporting.
SK OVC017-TOP052Sky condition: cloud bases and tops in hundreds of feet MSL.
IC NEGIcing: none reported.
RM DURCRemarks.
PIREP1057Z (5:57 AM CDT) · 96 NM SW of 2SD4 · 37,000 ft MSL · UAL2847
Show raw report
ARP UAL2847 4214N 09912W 1057 F370 MS60 249/055KT TB NONE SK ON TOP IC NONE
ARP UAL2847 4214N 09912W 105…Header: reporting station and UA: a routine pilot report.
PIREP1025Z (5:25 AM CDT) · 62 NM E of 2SD4 · during climb · BE20
Show raw report
FSD UA /OV FSD210005/TM 1025/FL019/TP BE20/SK OVC019-TOP057/RM DURC
FSD UAHeader: reporting station and UA: a routine pilot report.
OV FSD210005Location: fix or navaid, optionally with a radial and distance in NM.
TM 1025Reported at 10:25 UTC.
FL019Altitude: 1,900 ft MSL.
TP BE20Aircraft type reporting.
SK OVC019-TOP057Sky condition: cloud bases and tops in hundreds of feet MSL.
RM DURCRemarks.

⚠️ PIREPs are unverified pilot reports. Not for operational use: conditions change between reports.

Recent aviation weather trends at 2SD4

From ATIS Alerts' hourly weather history.

Over the past 24 hours, the nearest station KMHE reported a mix of conditions, most often IFR across 45 observations, with 17 flight-category changes. The strongest gust reached 22 kt, the lowest ceiling was 300 ft. Wind most often came from the S.

Last 24 hours
VFR 22%MVFR 31%IFR 38%LIFR 9%
Wind avg/max: 8/15 kt
Max gust: 22 kt
Lowest ceiling: 300 ft
Lowest vis: -
Prevailing wind: S
Category changes: 17

Most recent change: IFR → LIFR

Last 7 days
VFR 71%MVFR 15%IFR 11%LIFR 3%
Wind avg/max: 9/25 kt
Max gust: 37 kt
Lowest ceiling: 300 ft
Lowest vis: 1.75 sm
Prevailing wind: S
Category changes: 22

Most recent change: IFR → LIFR

Wind-favored runway - past 30 days

Share of hours each runway had the most headwind. From wind reports, not ATC assignments.

N/S
100%

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Field aerial

North up

Aerial photo of Nicolaisen Airport (2SD4)
N ↑

Imagery: USGS The National Map (public domain). Something off? ✏️ Suggest an edit

Airport info

From the FAA airport record (cycle 2026-10-01) and OurAirports.

Services

Attended
Unattended
Control tower
None
Wind indicator
Unlighted

Airport

Type
General aviation airport
FAA LID
2SD4
City
Mount Vernon
State
South Dakota
Country
United States
Elevation
1,440 ft
Coordinates
43.6825, -98.2661
Runways
2 physical runways · 2 runway ends
Longest runway
2,800 ft
Weather reporting
Nearest station KMHE
TAF
Nearest KHON
Time zone
America/Chicago
Next sunset
11h 25m

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Nearby airports

Compare nearby METAR/TAF stations within 25, 50 and 100 NM before departure or arrival.

See all South Dakota airports →

Pilot PIREPs for Nicolaisen Airport (2SD4)

Community-submitted

Community-submitted airport notes from pilots about runway conditions, wildlife, FBOs, fuel, turbulence, ramp access, and local tips.

Read recent community-submitted pilot notes for Nicolaisen Airport, including runway conditions, wildlife activity, FBO/fuel notes, turbulence, ramp access, and local airport tips.

⚠️ Pilot PIREPs on ATIS Alerts are community-submitted airport notes for situational awareness only. They are not official FAA PIREPs, NOTAMs, weather briefings, airport advisories, or flight-planning guidance. Always verify with official FAA/NWS sources, airport management, ATC, and current publications.

No Pilot PIREPs have been submitted for 2SD4 yet. Recently flew here? Help the next pilot by leaving a quick airport note.

Pilot PIREPs are community pilot notes for situational awareness only, not official FAA PIREPs or advisories. Verify with official sources. Notes are moderated before they appear; helpful marks and reports help us keep them useful.

⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.

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