McChord Air Force Base

KTCM / TCM

Tacoma, US

Current TAF Forecast

Raw TAF:
TAF KTCM 160500Z 1605/1711 VRB06KT 9999 FEW250 QNH3000INS BECMG 1612/1613 VRB05KT 8000 BR FEW006 QNH2995INS BECMG 1616/1617 02006KT 9999 NSW SKC QNH2995INS BECMG 1622/1623 25006KT 9999 SKC QNH2992INS TX31/1623Z TN10/1613Z

Detailed TAF Table

Parameter
Tue
06:00Z
+-1h
Tue
07:00Z
+0h
Tue
08:00Z
+1h
Tue
09:00Z
+2h
Tue
10:00Z
+3h
Tue
11:00Z
+4h
Tue
12:00Z
+5h
Tue
13:00Z
+6h
Tue
14:00Z
+7h
Tue
15:00Z
+8h
Tue
16:00Z
+9h
Tue
17:00Z
+10h
Tue
18:00Z
+11h
Tue
19:00Z
+12h
Tue
20:00Z
+13h
Tue
21:00Z
+14h
Tue
22:00Z
+15h
Tue
23:00Z
+16h
Wed
00:00Z
+17h
Wed
01:00Z
+18h
Wed
02:00Z
+19h
Wed
03:00Z
+20h
Wed
04:00Z
+21h
Wed
05:00Z
+22h
Wed
06:00Z
+23h
Wed
07:00Z
+24h
Wed
08:00Z
+25h
Wed
09:00Z
+26h
Wind Dir
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
20°
N
20°
N
20°
N
20°
N
20°
N
20°
N
250°
W
250°
W
250°
W
250°
W
250°
W
250°
W
250°
W
250°
W
250°
W
250°
W
250°
W
250°
W
Wind Speed
6kt
6kt
6kt
6kt
6kt
6kt
5kt
5kt
5kt
5kt
6kt
6kt
6kt
6kt
6kt
6kt
6kt
6kt
6kt
6kt
6kt
6kt
6kt
6kt
6kt
6kt
6kt
6kt
Visibility
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
8 km
8 km
8 km
8 km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Mist
BR
Mist
BR
Mist
BR
Mist
BR
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Clouds
FEW250
FEW250
FEW250
FEW250
FEW250
FEW250
FEW006
FEW006
FEW006
FEW006
CLR
CLR
CLR
CLR
CLR
CLR
CLR
CLR
CLR
CLR
CLR
CLR
CLR
CLR
CLR
CLR
CLR
CLR
Ceiling
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
Flight Rules VFR VFR VFR VFR VFR VFR MVFR MVFR MVFR MVFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR
Day/Night
☀️
Day
🌅 05:51
☀️
Day
🌅 05:51
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 18:08
☀️
Day
🌇 18:08
☀️
Day
🌇 18:08
🌙
Night
🌇 18:08
🌙
Night
🌇 18:08
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 05:53
🌙
Night
🌅 05:53
🌙
Night
🌅 05:53
☀️
Day
🌅 05:53
☀️
Day
🌅 05:53
☀️
Day
☀️
Day
Flight Rules
VFR: Visual Flight Rules
MVFR: Marginal VFR
IFR: Instrument Flight Rules
LIFR: Low IFR
Ceiling Colors
Red: < 500ft
Amber: 500-1000ft
Blue: 1000-3000ft
Green: > 3000ft
⛈️ TCU: Towering Cumulus
🌩️ CB: Cumulonimbus
+Nh: Hours from now%: Probability of occurrenceAGL: Above Ground Level

Forecast Periods

BASE
VFR
Wind
VRB° at 6 kt
Visibility
10+ km
Clouds
FEW250
📖 Plain English Explanation:

This is the base forecast condition. Winds will be variable in direction at 6kt. Visibility will be excellent at 10+ km. Few clouds at 25000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

BECMG 2025-09-16 12:00:00 - 2025-09-16 13:00:00
MVFR
Wind
VRB° at 5 kt
Visibility
8 km
Weather
Mist
Clouds
FEW006
📖 Plain English Explanation:

Conditions will gradually change to become: Winds will be variable in direction at 5kt. Visibility will be good at 8 km. Weather conditions: Mist. Few clouds at 600 feet. Marginal VFR conditions - some restrictions for visual flying.

BECMG 2025-09-16 16:00:00 - 2025-09-16 17:00:00
VFR
Wind
20° at 6 kt
Visibility
10+ km
Clouds
CLR
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the North-Northeast (20°) at 6kt. Visibility will be excellent at 10+ km. Skies will be clear. Conditions will be suitable for Visual Flight Rules (VFR) operations.

BECMG 2025-09-16 22:00:00 - 2025-09-16 23:00:00
VFR
Wind
250° at 6 kt
Visibility
10+ km
Clouds
CLR
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the West-Southwest (250°) at 6kt. Visibility will be excellent at 10+ km. Skies will be clear. Conditions will be suitable for Visual Flight Rules (VFR) operations.

📚 Understanding TAF Forecasts

Terminal Aerodrome Forecast (TAF) provides detailed weather forecasts specifically for aviation operations. Our system translates complex meteorological codes into plain English to help pilots of all experience levels understand forecasted conditions.

What TAF Includes:

  • • Wind direction, speed, and gusts
  • • Visibility in statute miles or kilometers
  • • Weather phenomena (rain, snow, fog, thunderstorms)
  • • Cloud coverage types and altitudes
  • • Forecast changes with timing
  • • Flight rules categories (VFR/IFR)

Change Indicators Explained:

  • BASE - Main forecast conditions
  • FM - Permanent change from specific time
  • BECMG - Gradual change over 2-4 hours
  • TEMPO - Temporary changes (less than 1 hour)
  • PROB30/40 - 30% or 40% probability

🛩️ Flight Rules Categories

VFR

Visual Flight Rules

  • • Ceiling ≥ 3000 ft
  • • Visibility ≥ 5 miles
  • • Good for visual flying

MVFR

Marginal VFR

  • • Ceiling 1000-3000 ft
  • • Visibility 3-5 miles
  • • Caution for VFR

IFR

Instrument Flight Rules

  • • Ceiling 500-1000 ft
  • • Visibility 1-3 miles
  • • Instruments required

LIFR

Low IFR

  • • Ceiling < 500 ft
  • • Visibility < 1 mile
  • • Challenging conditions

💡 TAF Reading Tips

For Student Pilots:

  • • Focus on the plain English explanations above
  • • Pay attention to flight rules categories
  • • Look for wind direction relative to runway headings
  • • Check for temporary conditions (TEMPO)

For Experienced Pilots:

  • • Cross-reference with raw TAF for precise timing
  • • Consider probability forecasts for alternate planning
  • • Monitor BECMG periods for gradual changes
  • • Always check current METAR vs TAF forecast

Important: TAF forecasts should always be supplemented with current METAR observations, PIREPs, and other weather information for complete situational awareness. Weather can change rapidly, and forecasts have inherent limitations.