1
Runway
3
Frequencies
0
Procedures
0
NOTAMs
Quick Facts
FAA
4S9
Elevation
259.9 ft MSL
Runways
1
Frequencies
3
Tower
No
Fuel
100LL
Coordinates
45.217, -122.590
Airport Information
Facility Type
AIRPORT
Elevation
259.9 ft MSL
Control Tower
No
Fuel Types
100LL
ARTCC
SEATTLE
Coordinates
45.2166, -122.5902
Ownership
Public
Hours of Operation
Current Weather
METAR KUAO 220353Z AUTO 34007KT 10SM CLR 22/11 A2994 RMK AO2 SLP137 T02220106
Flight Category
VFR
Wind
340° at 7 kt
Visibility
10+ SM
Temperature
22.2°C
Dewpoint
10.6°C
Altimeter
1014.00 inHg
Cloud Cover
CLR
Nearest weather from KUAO (11 NM away)
Observed 2026-05-22 03:53Z
Nearby Weather Cameras
No camera at 4S9. Showing nearest cameras.
Cooper
North · Camera 1 · 2 cameras total
22 NM away
McCully Mtn
West · Camera 4 · 4 cameras total
27 NM away
10 camera angles available
See all cameras, directions, and nearby airport cameras
Sign up free to view all cameras →Runways
| ID | Length | Width | Surface | Lights |
|---|---|---|---|---|
| 14/32 | 3,425 ft | 100 ft | ASPH | MED |
Frequencies
| Type | Frequency | Name |
|---|---|---|
| CD/P | 119.95 | PORTLAND TRACON |
| CTAF | 123.05 | MULINO STATE |
| UNICOM | 123.05 | MULINO STATE |
Active NOTAMs
No active NOTAMs for 4S9.
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4S9 Operational Overview
Location & Facility
MULINO STATE (4S9) is a publicly owned airport open to the public located in PORTLAND-MULINO, Oregon, United States. The field sits at an elevation of 259.9 feet above mean sea level (MSL) at coordinates 45.2166°N, 122.5902°W.
Runways
MULINO STATE has 1 runway. The longest runway (14/32) measures 3,425 feet by 100 feet with a asph surface.
Communications & Operations
MULINO STATE is a non-towered (pilot-controlled) field. A total of 3 communication frequencies are published for this facility.
Services & Fuel
MULINO STATE offers 100LL fuel. Pilots planning fuel stops should confirm availability with the FBO, as hours and pricing may vary.
Weather Cameras
3 FAA Weather Cameras are available near MULINO STATE, providing real-time visual weather conditions updated every 10 minutes. AeroCopilot integrates these cameras with AI-powered weather analysis to help pilots assess visibility and ceiling conditions before departure.
Current Conditions
The current flight category at MULINO STATE is VFR (Visual Flight Rules — good flying conditions). Weather conditions are updated in real-time from official NOAA Aviation Weather Center observations.
Frequently Asked Questions
What is 4S9?
4S9 is the ICAO identifier for MULINO STATE, a public-use airport located in PORTLAND-MULINO, Oregon, United States.
How many runways does MULINO STATE have?
MULINO STATE (4S9) has 1 runway. See the runway table above for dimensions and surface types.
What is the elevation of 4S9?
The field elevation of MULINO STATE is 259.9 feet above mean sea level (MSL).
Is fuel available at 4S9?
Yes, MULINO STATE offers 100LL fuel.
What are the current weather conditions at 4S9?
The current flight category at MULINO STATE is VFR. See the METAR section above for full decoded weather data including wind, visibility, temperature, and altimeter.
Are there active NOTAMs at 4S9?
There are currently no active NOTAMs for MULINO STATE.
How do I access complete data for 4S9?
Sign up for a free AeroCopilot account to access all frequencies, full NOTAM text with AI interpretation, decoded forecasts, and IFR procedure charts for MULINO STATE.
Where is MULINO STATE located?
MULINO STATE (4S9) is located in PORTLAND-MULINO, Oregon, United States, at an elevation of 259.9 ft MSL.
Does 4S9 have weather cameras?
4S9 does not have a direct weather camera, but there are nearby cameras within range. Sign up for AeroCopilot to view all nearby airport cameras.