S71 EDGAR G OBIE Airport

Before you fly into S71

Conditions

VFR

Good for visual flying

Airport

Non-towered

Self-announce on CTAF

Pattern alt

3,216'

MSL · field 2,416' + 800 AGL

Favored RWY

RWY 26

H/W +13 · X/W 8 kt R

METAR & TAF S71

S71 does not publish a METAR.

Showing the nearest reporting station: KHVR (HAVRE CITY-COUNTY) · 20.5 NM away. Conditions at S71 may differ.

METAR · KHVR

Observed 15:53Z

KHVR 111553Z AUTO 31015G21KT 10SM FEW080 17/08 A2998 RMK AO2 PK WND 29026/1506 SLP151 T01670083

Wind: 310° @ 15G21 kt
Visibility: 10 SM
Temp / Dew: 17°C / 8°C
Altimeter: 29.98 inHg
Clouds: FEW
Density alt: 3,161 ft
Ceiling: Unlimited
Rules: VFR

S71 does not issue a TAF.

Showing the forecast from the nearest station: KHVR (HAVRE CITY-COUNTY) · 20.5 NM away. Conditions at S71 may differ.

Forecast · TAF

Valid 11 12:00Z–12 12:00Z

TAF KHVR 111120Z 1112/1212 28012G20KT P6SM BKN050 FM111700 29015G23KT P6SM SCT050 BKN090 FM112100 28014G20KT P6SM VCSH BKN050 PROB30 1121/1203 6SM -SHRA BKN035 FM120500 29007KT P6SM SCT090

BASEVFR

11 12:00Z–11 17:00Z

Wind: 280° at 12 kt gusting 20 kt
Visibility: ≥ 6 SM
Sky: Broken 5,000 ft
Weather: None forecast

12Z

15Z

18Z

21Z

00Z

03Z

06Z

09Z

12Z

NOW

How to read

The top lane is always the active baseline (BASE + FM). Secondary lanes stack temporary and probabilistic deviations in the order they appear in the TAF.

Tap any pill to see the decoded conditions for that period.

Change indicators

BASEBase

Initial conditions at the start of the forecast.

FMFrom

A new baseline that replaces the previous forecast completely, starting at the stated time.

BECMGBecoming

Conditions change gradually over the window shown. By the end, the new conditions apply.

TEMPOTemporary

Fluctuating conditions lasting less than an hour at a time within the window — not the dominant forecast.

PROB30/40Probability

30 or 40% chance of the conditions occurring within the period. Never combined with BECMG.

Airport info & contacts

Manager on record, flight service, ARTCC, attendance schedule and pattern altitude — published by the FAA and refreshed every 28 days.

Location

From city: 1 NM W
VFR sectional: GREAT FALLS
Pattern altitude: 800 ft AGL · 3,216 ft MSL
ARTCC: ZLC · SALT LAKE CITY
NOTAM facility: GTF (NOTAM-D)

Airport manager

Name: EDGAR OBIE JR.
Phone: (406) 799-6516
Address: 490 CLEVELAND RD, CHINOOK MT 59523

Flight service · Hours

FSS GTF: GREAT FALLS1-800-WX-BRIEF
Attendance: 0700-1900

Frequencies

Tap any row to copy the frequency to your clipboard.

Advisory / CTAF

Runways & pattern

Full page

Runway & wind

tap a runway

310° · 15 kt

See full METAR & TAF

RWY 26

264°M

Head/Tail

+13 kt

Crosswind

8 kt R

Pattern entry · RWY 26

LEFT TRAFFIC

Runway	Heading (°M)	Length	Surface	Traffic
08/26Favored	84° / 264°	4,000 ft	ASPH	Standard L

Runway end performance

End	TORA	TODA	ASDA	LDA	VGSI	Approach lights	Obstruction
26	—	—	—	—	PAPI 2-box left(4°)	—	—

Declared distances in feet. TORA = takeoff run available, TODA = takeoff distance, ASDA = accelerate-stop, LDA = landing distance.

Airport sketch

Runways drawn to scale from FAA survey coordinates, rendered over satellite imagery. Not for navigation.

Top-down satellite sketch of S71 EDGAR G OBIE in CHINOOK, MONTANA, showing runways 08/26 drawn to scale over Esri World Imagery

Approaches & charts

Chart Supplement

S71 · CHART_SUPP

Chart Supplement

S71 · CHART_SUPP

Services on the field

Fuel grades, oxygen, maintenance, ramp storage and lighting — as declared to the FAA by the airport operator.

Fuel & services

Fuel: 100LL
Oxygen (bottled): Not available
Oxygen (bulk): Not available
Airframe repair: Minor
Power plant repair: Minor
Other services: AGRI,CHTR,INSTR

Ramp & ground

Transient storage: Tie-down
Landing fee: No fee published
Customs: Not available
Lighting schedule: SEE RMK
Beacon schedule: SS-SR
Beacon: White / Green (civil land)(WG)
Wind indicator: Lighted
Segmented circle: Yes

Fuel & FBOs

Cheapest 100LL and Jet A on the field and nearby. Always confirm with the FBO before taxi.

Cheapest 100LL

$6.25

S71·Obie Flying Service

Cheapest Jet A

—

Not published

FBO	100LL	Jet A	Amenities
Obie Flying Service 122.800406-799-651Independent9d ago	$6.25	—	—

Obie Flying Service
122.800406-799-651
—
100LL
$6.25
Jet A
—

Airport notes

Surface conditions, obstructions, local procedures, lighting outages and other notes published with each FAA cycle.

General notes

FOR CD CTC SALT LAKE ARTCC AT 801-320-2568.
226 FT AGL SMOKE STACK 1.1 MI FM 26 THR.

Lighting notes

ACTVT PAPI RWY 26; MIRL RWY 08/26 DAWN-DUSK - CTAF. AFTER DUSK MIRL ON CONSLY TIL DAWN.

Fuel notes

100LLSELF SERVICE CREDIT CARD 24/7

Other notes

EXISTED PRIOR TO 05/15/59.
1CELL 406-799-6516

VFR map & nearby airports

VFR sectional. Tap any ICAO chip to open that airport.

Key facts · S71

Answer card

ICAO: S71
Name: EDGAR G OBIE
Location: CHINOOK, MONTANA
Elevation: 2,416 ft MSL
Traffic pattern altitude: 3,216 ft MSL (800 AGL)
Control tower: Non-towered (use CTAF)
Total runways: 1
Longest runway: 08/26 · 4,000 ft
Published ILS approaches: 0
Published frequencies: 2
Magnetic variation: 16°
Current flight rules: VFR
Current wind: 310° at 15 kt
Favored runway now: RWY 26

EDGAR G OBIE is in Chinook, Montana. The field elevation is 2,416 ft MSL. It has one runway. Runway 08/26 is 4,000 ft long and asphalt. There is no control tower. CTAF and UNICOM are both 122.8.

Pattern altitude is 800 ft AGL, which is 3,216 ft MSL. No ILS approaches are published here, so plan with the current Chart Supplement and your normal local weather and terrain checks. The published remarks also note a 226 ft AGL smoke stack about 1.1 miles from the runway 26 threshold. That is worth keeping in mind on arrival and departure planning.

Obie Flying Service is on the field. It carries 100LL. Self-serve 100LL is available 24 hours a day with credit card access. The runway lighting is pilot-controlled on CTAF. PAPI is activated for runway 26. After dusk, the medium intensity runway lights run continuously until dawn. For clearance delivery, contact Salt Lake ARTCC at 801-320-2568. If you are new to the field, verify the current Chart Supplement for any changes before you go.

Frequently asked questions

What is the pattern altitude at S71?

Pattern altitude is 800 ft AGL. That works out to 3,216 ft MSL at this field elevation of 2,416 ft MSL.

Does S71 have a control tower?

No. S71 is non-towered. Use CTAF 122.8 for traffic calls and runway coordination.

What runway is longest at EDGAR G OBIE?

There is one runway. Runway 08/26 is the longest runway at 4,000 ft.

Is there an ILS at S71?

No ILS approaches are published for S71. Check the current Chart Supplement for the latest approach information before flight.

Which FBO is on the field at S71?

Obie Flying Service is the on-field FBO. It carries 100LL. Self-serve 100LL is available 24 hours a day with credit card access.

What are the runway lighting details at S71?

PAPI is activated for runway 26. Medium intensity runway lights are on runway 08/26 from dawn to dusk and are controlled by CTAF. After dusk, the lights stay on continuously until dawn.

Is there any obstacle concern near runway 26 at S71?

Yes. The published remarks note a 226 ft AGL smoke stack about 1.1 miles from the runway 26 threshold. That is a good item to brief before departure or arrival.

Who do I call for clearance delivery at S71?

Salt Lake ARTCC handles clearance delivery. The published number is 801-320-2568.

S71