WxDecoder

SD04 Weather Keystone XL Opal Heliport

Opal, South DakotaElevation 3,001 ftHeliport
OFF-FIELD REFERENCE
Nearest report: KRCA · 56 NM S · 28 min old
Ceiling 100 ft, visibility 1.88 SM, mist.
No on-field report, so no field flight category. Conditions at the field may differ.
OFF-FIELD REFERENCE · KRCA
WIND
100@6
steady
VISIBILITY
1.88 SM
3 km
CEILING
100 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 90° at 9 kt, temperature 2.2C. This observation is older than usual, so treat it with extra caution. Treat this as supplemental, not an aviation observation. Forecast suggests tonight light rain likely, low near 31F, 70% chance of precipitation. Key risks: strong winds in the forecast.

PILOT WEATHER NOTES
Strong winds in the forecastWeather.gov
Tuesday: winds up to 36 kt. Re-check crosswind components closer to departure.
DayConditionsTemp FWindGustsPrecipPilot note
Tonight Light Rain Likely 31 E 12 kt 19 kt 70%
Monday Areas Of Fog 37/28 E 16 kt 23 kt 81%
Tuesday Mostly Sunny 57/32 SW 26 kt 36 kt 3% Strong winds in the forecast
Wednesday Sunny 57/32 NW 10 kt 17 kt 3%
Thursday Sunny 58/36 SE 12 kt – 3%
Friday Partly Sunny 53/37 E 17 kt – 37%
Saturday Chance Light Rain 51/36 N 12 kt – 40%
Sunday Partly Sunny then Chance Light Rain 54 S 13 kt – 28%

Source: National Weather Service (office UNR). Forecast issued 0422Z.

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 SD04. Enter a runway number or heading to estimate wind components.
RUNWAYS

Runway detail & declared distances

1 runway · longest 40 ft

H1
Dimensions
40 x 40 ft
Surface
Mats
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
3,001 ft MSL

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

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
2349Z 5:49 PM
Sunrise
1320Z 7:20 AM
Loggable night
0019Z (6:19 PM local) → 1250Z (6:50 AM local)
end of evening to start of morning civil twilight
Position lights required
2349Z (5:49 PM local) → 1320Z (7:20 AM local)
sunset to sunrise (91.209)
Night passenger currency
0049Z (6:49 PM local) → 1220Z (6:20 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

Keystone XL Opal Heliport is in Opal, South Dakota. Field elevation 3,001 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPrivately owned
UsePrivate use
TypeHeliport
ManagerTRANSCANADA KEYSTONE XL PIPELINE
Manager phone402-492-7594
CHARTS & AIRSPACE
ICAO / IATASD04
SectionalBILLINGS
Center (ARTCC)MINNEAPOLIS
Flight service (AFSS)HURON
RegionSouth Dakota
CountryUnited States
Coordinates45.0200, -102.6589
Distance from city12 NM NW
SERVICES & LIGHTING
Control towerNon-towered
CTAF122.900
FREQUENCIES

Communications

122.900
CTAF
CTAF

Not all tower/ground/approach frequencies are in our datasets. Verify with the FAA Chart Supplement.

AIRCRAFT ACTIVITY

Traffic patterns

Aircraft activity data is not available for this airport yet.

NEARBY AIRPORTS

Weather reference stations

SD04 has no on-field report. Nearest reporting station: KRCA (56 NM S, LIFR).

KRCA Ellsworth Air Force Base
56 NM S
LIFR
KSPF Black Hills Airport-Clyde Ice Field
58 NM SW
VFR
KRAP Rapid City Regional Airport
61 NM S
IFR
KPHP Philip Airport
74 NM SE
IFR
KECS Mondell Field
98 NM SW
MVFR
KMBG Mobridge Municipal Airport
100 NM E
VFR
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗SD04 on OurAirports
FREQUENTLY ASKED
Does SD04 have a METAR?
No on-field METAR is issued for SD04. This page uses the nearest reporting station as a reference.
Does SD04 have a TAF?
No TAF is issued directly for SD04. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at SD04?
SD04 sits at 3,001 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for SD04?
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.