OL50 Weather Harmon Memorial Hospital Heliport

Hollis, OklahomaElevation 1,633 ftHeliport
OFF-FIELD REFERENCE
Nearest report: KCDS · 24 NM SW · 53 min old
Ceiling 11,000 ft, visibility 10 SM.
No on-field report, so no field flight category. Conditions at the field may differ.
OFF-FIELD REFERENCE · KCDS
WIND
130@7
steady
VISIBILITY
10 SM
16.1 km
CEILING
11,000 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 130° at 8 kt, visibility 10 SM, temperature 18C. Treat this as supplemental, not an aviation observation. Forecast suggests tonight mostly cloudy, low near 57F, 9% chance of precipitation. Key risks: thunderstorms in the forecast.

PILOT WEATHER NOTES
Thunderstorms in the forecastWeather.gov
Tuesday: Showers And Thunderstorms Likely. Watch for developing convection and plan alternates.
DayConditionsTemp FWindGustsPrecipPilot note
Tonight Mostly Cloudy 57 SE 10 kt – 9%
Monday Mostly Cloudy then Slight Chance Rain Showers 75/57 SSE 9 kt – 61%
Tuesday Showers And Thunderstorms Likely 78/58 S 12 kt 18 kt 61% Thunderstorms in the forecast
Wednesday Sunny 81/59 S 13 kt – 1%
Thursday Mostly Sunny then Chance Showers And Thunderstorms 81/58 S 10 kt – 68%
Friday Showers And Thunderstorms 71/56 SSE 11 kt – 85%
Saturday Showers And Thunderstorms Likely 77/57 S 9 kt – 58%
Sunday Partly Sunny 77 SW 6 kt – 6%

Source: National Weather Service (office OUN). Forecast issued 0200Z.

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 OL50. 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
Asphalt (good)
Edge lights
PERI
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
1,633 ft MSL

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

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
2353Z 6:53 PM
Sunrise
1254Z 7:54 AM
Loggable night
0019Z (7:19 PM local) → 1228Z (7:28 AM local)
end of evening to start of morning civil twilight
Position lights required
2353Z (6:53 PM local) → 1254Z (7:54 AM local)
sunset to sunrise (91.209)
Night passenger currency
0053Z (7:53 PM local) → 1154Z (6:54 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

Harmon Memorial Hospital Heliport is in Hollis, Oklahoma. Field elevation 1,633 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPublicly owned
UsePrivate use
TypeHeliport
ManagerANDREW SPELLMAN
Manager phone580-688-2303
CHARTS & AIRSPACE
ICAO / IATAOL50
SectionalDALLAS-FT WORTH
Center (ARTCC)FORT WORTH
Flight service (AFSS)MC ALESTER
RegionOklahoma
CountryUnited States
Coordinates34.6917, -99.9146
Distance from city1 NM NNW
SERVICES & LIGHTING
Control towerNon-towered
Field lightingSunset to sunrise
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

OL50 has no on-field report. Nearest reporting station: KCDS (24 NM SW, VFR).

AIRPORT REMARKS

Operational remarks

›OTR CTC: ANDREWSPELLMAN@HARMONMEMORIAL.COM
›TLOF 40 X 40 FT; FATO 68.2 X 68.2 FT; SAFETY AREA 91.4 X 91.4 FT. MAX HEL GWT 12,000 LBS.
›DAY/ NIGHT VFR.
›PRI INGRESS 045 DEGS; PRI EGRESS 045 DEGS. SECONDARY INGRESS 315 DEGS; SECONDARY EGRESS 315 DEGS.
FREQUENTLY ASKED
Does OL50 have a METAR?
No on-field METAR is issued for OL50. This page uses the nearest reporting station as a reference.
Does OL50 have a TAF?
No TAF is issued directly for OL50. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at OL50?
OL50 sits at 1,633 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for OL50?
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.