KTHM Thompson Falls Airport

Before you fly into KTHM

Conditions

VFR

Good for visual flying

Airport

Non-towered

Self-announce on CTAF

Pattern alt

3,467.1'

MSL · field 2,467.1' + 1,000 AGL

Favored RWY

RWY 26

H/W +2 · X/W 6 kt L

METAR & TAF KTHM

KTHM does not publish a METAR.

Showing the nearest reporting station: KGPI (GLACIER PARK INTL) · 60.5 NM away. Conditions at KTHM may differ.

METAR · KGPI

Observed 13:55Z

KGPI 111355Z 20006KT 10SM OVC065 11/06 A3012

Wind: 200° @ 6 kt
Visibility: 10 SM
Temp / Dew: 11°C / 6°C
Altimeter: 30.12 inHg
Clouds: OVC
Density alt: 2,331 ft
Ceiling: 6,500 ft AGL
Rules: VFR

KTHM does not issue a TAF.

Showing the forecast from the nearest station: KGPI (GLACIER PARK INTL) · 60.5 NM away. Conditions at KTHM may differ.

Forecast · TAF

Valid 10 18:00Z–11 18:00Z

TAF KGPI 101722Z 1018/1118 04010KT P6SM OVC050 FM101900 25010G19KT P6SM OVC050 FM102200 24010KT P6SM OVC050 FM110300 17005KT P6SM BKN050

BASEVFR

10 18:00Z–10 19:00Z

Wind: 040° at 10 kt
Visibility: ≥ 6 SM
Sky: Overcast 5,000 ft
Weather: None forecast

18Z

21Z

00Z

03Z

06Z

09Z

12Z

15Z

18Z

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: 3 NM SE
VFR sectional: GREAT FALLS
ARTCC: ZSE · SEATTLE
NOTAM facility: GTF (NOTAM-D)

Airport manager

Name: KIM ROBERTS
Phone: 406-827-3519
Address: P.O. BOX 1204, THOMPSON FALLS MT 59873

Flight service · Hours

FSS GTF: GREAT FALLS1-800-WX-BRIEF
Attendance: Unattended

Frequencies

Tap any row to copy the frequency to your clipboard.

Advisory / CTAF

Runways & pattern

Full page

Runway & wind

tap a runway

200° · 6 kt

See full METAR & TAF

RWY 26

251°M

Head/Tail

+2 kt

Crosswind

6 kt L

Pattern entry · RWY 26

LEFT TRAFFIC

Runway	Heading (°M)	Length	Surface	Traffic
08/26Favored	71° / 251°	4,200 ft	ASPH	Standard L

Runway end performance

End	TORA	TODA	ASDA	LDA	VGSI	Approach lights	Obstruction
08	—	—	—	—	PAPI 2-box left(3°)	—	—
26	—	—	—	—	PAPI 2-box left(3.25°)	—	104', trees, 1900' from thr, 0' R of cntrln, slope 16

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 KTHM THOMPSON FALLS in THOMPSON FALLS, MONTANA, showing runways 08/26 drawn to scale over Esri World Imagery

Approaches & charts

Chart Supplement

KTHM · CHART_SUPP

Chart Supplement

KTHM · 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: Not available
Power plant repair: Not available

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 100LLNearby

$5.79

8S1·Lake Aero/Ronan Aviation·44.9 nm

Cheapest Jet ANearby

$6.50

S59·Lincoln County·43.5 nm

No on-field FBO prices. See nearby fuel options below.

Cheaper nearby (within 50 nm)

100LL$5.79at8S1Lake Aero/Ronan Aviation44.9 nm
Jet A$6.50atS59Lincoln County43.5 nm

Airport notes

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

General notes

MKD PWR LINES 7 MI E MAINLAND TO BIG IS.
PHONE ON ARPT.
100 FT SILO IN TRANS SFC NE SIDE OF RY.
WATERFOWL INVOF ARPT.
300 FT CANDLESTICK FXD DIST MKRS IN TRANS SFC.
SN REMOVAL INTMT. CALL 406-546-6384 FOR RWY COND.
FOR CD CTC SEATTLE ARTCC AT 253-351-3694.

Lighting notes

ACTVT PAPI RWY 8 & 26; MIRL RWY 08/26 - CTAF.

Fuel notes

100LLFUEL AVBL 24/7 WITH CREDIT CARD.

Other notes

CONSTR PRIOR 1959
AUTOMATED UNICOM AVBL ON 118.325; 3 CLICKS.
MANAGERALTN PHONE 406-546-6384 OR 406-598-6227.

VFR map & nearby airports

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

Key facts · KTHM

Answer card

ICAO: KTHM
Name: THOMPSON FALLS
Location: THOMPSON FALLS, MONTANA
Elevation: 2,467.1 ft MSL
Traffic pattern altitude: 3,467.1 ft MSL (1,000 AGL)
Control tower: Non-towered (use CTAF)
Total runways: 1
Longest runway: 08/26 · 4,200 ft
Published ILS approaches: 0
Published frequencies: 1
Magnetic variation: 19°
Current flight rules: VFR
Current wind: 200° at 6 kt
Favored runway now: RWY 26

Thompson Falls Airport sits in Thompson Falls, Montana. Field elevation is 2,467.1 ft MSL. The airport has one runway, 08/26, which is 4,200 ft long and asphalt. There is no control tower. CTAF is 122.9. Automated UNICOM is available on 118.325 with three clicks. No ILS approaches are published here.

Pattern altitude is not published. Use the standard 1,000 ft AGL pattern for light piston aircraft unless the current Chart Supplement or local procedures say otherwise. The field carries 100LL with 24-hour self-serve credit card access. There is no on-field FBO listed in the facts, so verify services with the airport operator or by calling the field before arrival.

For a first-time arrival, pay attention to the published obstructions in the transitional surface. There is a 100-foot silo on the northeast side of the runway. There are also 300-foot candlestick fixed distance markers in the transitional surface. Snow removal is intermittent, so runway condition should be checked before a winter trip. Waterfowl are also reported in the area. PAPI is available on runways 8 and 26. Medium intensity runway lights are on 08/26 and are controlled by CTAF.

Frequently asked questions

What is the runway length at KTHM?

KTHM has one runway, 08/26. It is 4,200 ft long and asphalt.

Does Thompson Falls Airport have a tower?

No. KTHM is non-towered. CTAF is 122.9.

Is there an ILS at KTHM?

No ILS approaches are published for KTHM. Check the current FAA Chart Supplement for the latest approach data before you go.

What is the pattern altitude at KTHM?

Pattern altitude is not published in the facts. Use the standard 1,000 ft AGL pattern for light piston aircraft unless the current Chart Supplement says otherwise.

Which runway lighting and visual aids are available at KTHM?

Runways 08 and 26 have PAPI. Medium intensity runway lights are on 08/26 and are controlled by CTAF.

Is 100LL available at Thompson Falls Airport?

Yes. 100LL is available 24 hours a day, 7 days a week with credit card access.

Are there any runway obstructions or hazards at KTHM?

Yes. The published remarks note a 100-foot silo on the northeast side of the runway. They also note 300-foot candlestick fixed distance markers in the transitional surface.

What should I know before landing at KTHM in winter?

Snow removal is intermittent. Call 406-546-6384 for runway condition before departure. Waterfowl are also reported in the vicinity of the airport.

KTHM