McChord Air Force Base

KTCM / TCM

Tacoma, US

Last Updated
Mar 5, 04:10Z

Military Airport

Restricted

This is a U.S. military installation. Civil aircraft operations are generally prohibited without prior authorization.

Access Notes:

Most military airfields closed to civil traffic; some joint-use exceptions exist

Consult official AIP (FAA AIP GEN 3.3) for current access procedures and restrictions.

Current Weather

Display Units
Fresh 21 min ago
04:10Z

🌙 Night
MVFR
Flight Rules
9°C
Temperature
Dewpoint: 6°C
8 kt
200°
10 SM
Visibility
2,200 ft
Ceiling
Above Ground Level
1018 hPa
QNH
Altimeter Setting

Raw METAR

SPECI KTCM 050410Z AUTO 20008KT 10SM BKN022 09/06 A3005 RMK AO2 SLP181 $

Clouds - Visual Profile

12,000ft
9,000ft
6,000ft
3,000ft
Ground
Field Elev: 322 ft
BKN 2,200 ft AGL
☁️
BKN
Broken (5/8-7/8 sky coverage)
2,200 ft
AGL (Above Ground)
2,522 ft AMSL
QNH
1018 hPa
Sea Level Pressure
For altitude above MSL
QFE
1007 hPa
Field Pressure
Height above aerodrome (322 ft)
Pressure Alt
180 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: -463 ft
ISA Deviation: -5.4°C

Forecast (TAF)

View Full TAF
Raw TAF
TAF AMD KTCM 042200Z 0422/0603 23012G18KT 9000 -SHRA BKN015 OVC040 610507 QNH2986INS TEMPO 0422/0502 BKN008 BECMG 0505/0506 23012G18KT 9999 VCSH SCT015 OVC035 610408 QNH3008INS BECMG 0513/0514 22010G15KT 9999 NSW FEW025 BKN040 OVC055 QNH3021INS TX12/0423Z TN05/0513Z
Upcoming Changes (Next 12 Hours)
04:30Z BASE
+0h
MVFR 230° 12 kt
Visibility: 9 km
Ceiling: 1,500 ft
Light Showers Rain
05:00Z BECMG
+1h
VFR 230° 12 kt
Visibility: 10+ km
Ceiling: 3,500 ft
13:00Z BECMG
+9h
VFR 220° 10 kt
Visibility: 10+ km
Ceiling: 4,000 ft

24-Hour Weather Evolution

Loading weather data...
Data Sources
  • • Current conditions from METAR observations
  • • Historical data from past 24 hours
  • • No forecast or predicted data included
  • • Data updated with each new METAR report
Chart Features
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Note: Future values beyond current TAF validity are estimates based on climatological data and trends. Always verify with current forecasts before flight operations.

Airport Runway Layout

N
TCM
16 ✈️
34
160
340

Runway Information

Runway Length Width Surface Heading Wind Component
✈️ 16/34
Active: 16
10,108 ft 150 ft ASP 180°
6.1 kt 5.1 kt
40° angle
160/340 3,000 ft 60 ft ASPH
7.5 kt 2.7 kt
160° angle
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Weather Statistics - KTCM

9,088 observations | Sep 2025 - Mar 2026

Flight Rules Distribution

VFR
57.6%
MVFR
20.3%
IFR
9.6%
LIFR
12.6%

McChord Air Force Base is frequently affected by reduced visibility conditions, with VFR weather only 57.6% of the time and IFR/LIFR conditions occurring in 22.2% of observations. Prevailing winds are from the S averaging 6.9 knots, with gusts recorded up to 31 knots. Calm conditions occur 43.2% of the time. Temperature extremes range from -7°C to 33°C, reflecting significant seasonal variation. Fog is a notable factor, occurring in approximately 10.8% of observations, with visibility below 3 SM in 2.6% of reports. The best months for VFR flying are September, March, October.

Wind Analysis

Prevailing Direction: S (180°)
Average Speed: 6.9 kt
Maximum Recorded: 31 kt
Calm Winds: 43.2%
Direction Distribution:
N
3.2%
NE
4.4%
E
2.5%
SE
3.6%
S
23.9%
SW
14.5%
W
3%
NW
1.7%

Temperature Range

Average: 7.4°C
Range: -7°C to 33°C
-7°C 33°C

Visibility

Average: 9.1 SM
Below 3 SM: 2.6%
Fog Frequency: 10.8%

Best Months for VFR

September March October

Runway Wind Analysis

Runway 16/34
Favorable wind: 100%
Avg crosswind: 4.4 kt
Runway 160/340
Favorable wind: 100%
Avg crosswind: 4.4 kt

Statistics computed from 9,088 METAR observations (Sep 2025 - Mar 2026). Data sourced from official aviation weather services. Updated daily.

McChord Air Force Base - Airport Information

Airport Details

ICAO Code: KTCM
IATA Code: TCM
Type: medium airport
Status: active
Elevation: 322 ft MSL

Location

City: Tacoma
Country: US
Latitude: 47.137699°
Longitude: -122.475998°
Time Zone: Etc/GMT+8

Runway Information

Runway 16/34
Length: 10,108 ft
Width: 150 ft
Surface: ASP
ILS: No
Runway 160/340
Length: 3,000 ft
Width: 60 ft
Surface: ASPH
ILS: No

About McChord Air Force Base

McChord Air Force Base is a military facility. Civilian access may be restricted or require Prior Permission (PPR). Pilots should consult the US AIP for current access procedures and restrictions.

Overview

McChord Air Force Base (KTCM) is a medium airport located in Tacoma, Washington, serving critical military aviation operations. Situated at 322 feet mean sea level, the base features two paved runways that support military and strategic airlift missions in the Pacific Northwest region.

Flying Conditions

The airport experiences diverse weather conditions, with Visual Flight Rules (VFR) prevailing 54.3% of the time. Pilots should anticipate significant variability, including Marginal VFR (20.9%) and Instrument Flight Rules (10.9%) conditions. Temperature ranges from -4°C to 33°C, with an average of 7.9°C, and wind patterns predominantly from the south at an average of 7.2 knots.

Notable Features

Located at coordinates 47.137699, -122.475998, McChord AFB offers two runways: a primary 10,108-foot runway and a secondary 3,000-foot runway. Both runways demonstrate consistent wind alignment, with 100% favorable wind conditions and an average crosswind of 4.6 knots. Visibility averages 9 statute miles, with occasional reduced visibility due to fog (10.4% occurrence).

Approach Considerations

September through November represent the most favorable VFR months for operations. Pilots should be prepared for potential reduced visibility, with 2.5% of observations showing visibility below 3 statute miles. The prevailing south winds and minimal crosswind make both runways consistently accessible, with calm conditions present 41.9% of the time.

Data Sources & Accuracy: Airport information sourced from OurAirports.com, a collaborative database of worldwide airport data. Weather data from official aviation weather services including NOAA Aviation Weather Center and international METAR/TAF providers. Information is updated regularly but pilots should always verify current conditions and NOTAMs through official channels before flight operations.

Official Data Sources

Weather NOAA Aviation Weather Center • International METAR/TAF Network
Airports OurAirports.com • Public domain airport database
NOTAMs FAA NOTAM System • ICAO NOTAM Distribution
Last updated: Jan 1, 1970 12:00 AM UTC

Disclaimer: Data is provided for informational purposes only. Pilots must verify all information through official sources before flight operations. Weather conditions change rapidly; always obtain a current briefing from approved weather services.