John C. Munro Hamilton International Airport

CYHM / YHM

Hamilton, CA

Current TAF Forecast

Raw TAF:
TAF CYHM 050540Z 0506/0606 03010KT P6SM BKN100 TEMPO 0506/0513 3SM BR FEW002 PROB30 0507/0513 1/2SM FZFG VV002 FM051300 03015KT P6SM BKN004 OVC040 FM051600 04015KT 6SM -RA -DZ BR OVC004 PROB30 0518/0602 2SM -FZRA BR FM060200 04015KT 1/2SM -DZ FG VV002 PROB30 0602/0606 1/4SM -FZDZ FG RMK NXT FCST BY 051200Z

Detailed TAF Table

Parameter
Thu
09:00Z
+-1h
Thu
10:00Z
+0h
Thu
11:00Z
+1h
Thu
12:00Z
+2h
Thu
13:00Z
+3h
Thu
14:00Z
+4h
Thu
15:00Z
+5h
Thu
16:00Z
+6h
Thu
17:00Z
+7h
Thu
18:00Z
+8h
Thu
19:00Z
+9h
Thu
20:00Z
+10h
Thu
21:00Z
+11h
Thu
22:00Z
+12h
Thu
23:00Z
+13h
Fri
00:00Z
+14h
Fri
01:00Z
+15h
Fri
02:00Z
+16h
Fri
03:00Z
+17h
Fri
04:00Z
+18h
Wind Dir
30°
NE
30°
NE
30°
NE
30°
NE
30°
NE
30°
NE
30°
NE
40°
NE
40°
NE
30°
NE
30°
NE
30°
NE
30°
NE
30°
NE
30°
NE
30°
NE
30°
NE
30°
NE
30°
NE
30°
NE
Wind Speed
10 kt
10 kt
10 kt
10 kt
15 kt
15 kt
15 kt
15 kt
15 kt
10 kt
10 kt
10 kt
10 kt
10 kt
10 kt
10 kt
10 kt
10 kt
10 kt
10 kt
Visibility
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
6SM
6SM
2SM
2SM
2SM
2SM
2SM
2SM
2SM
2SM
1/4SM
1/4SM
1/4SM
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Light Rain, Light Drizzle, Mist
-RA -DZ BR
Light Rain, Light Drizzle, Mist
-RA -DZ BR
Light Freezing Rain, Mist
-FZRA BR
30%
Light Freezing Rain, Mist
-FZRA BR
30%
Light Freezing Rain, Mist
-FZRA BR
30%
Light Freezing Rain, Mist
-FZRA BR
30%
Light Freezing Rain, Mist
-FZRA BR
30%
Light Freezing Rain, Mist
-FZRA BR
30%
Light Freezing Rain, Mist
-FZRA BR
30%
Light Freezing Rain, Mist
-FZRA BR
30%
Light Freezing Drizzle, Fog, FCST
-FZDZ FG FCST
30%
Light Freezing Drizzle, Fog, FCST
-FZDZ FG FCST
30%
Light Freezing Drizzle, Fog, FCST
-FZDZ FG FCST
30%
Clouds
BKN100
BKN100
BKN100
BKN100
BKN004
OVC040
BKN004
OVC040
BKN004
OVC040
OVC004
OVC004
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
Ceiling
10,000 ft
AGL
10,000 ft
AGL
10,000 ft
AGL
10,000 ft
AGL
400 ft
AGL
400 ft
AGL
400 ft
AGL
400 ft
AGL
400 ft
AGL
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
Flight Rules VFR VFR VFR VFR LIFR LIFR LIFR LIFR LIFR IFR IFR IFR IFR IFR IFR IFR IFR MVFR MVFR MVFR
Day/Night
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 17:34Z
☀️
Day
🌇 17:34Z
☀️
Day
🌇 17:34Z
🌇
Dusk
🌇 17:34Z
🌙
Night
🌇 17:34Z
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 06:23Z
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
30° at 10 kt
Visibility
>6SM
Clouds
BKN100
📖 Plain English Explanation:

This is the base forecast condition. Winds from the North-Northeast (30°) at 10 kt. Visibility will be excellent at more than 6SM. Broken clouds at 10000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

TEMPO 06:00Z - 13:00Z
MVFR
Visibility
3SM
Weather
Mist
Clouds
FEW002
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Visibility will be good at 3SM. Weather conditions: Mist. Few clouds at 200 feet. Marginal VFR conditions - some restrictions for visual flying.

PROB30 07:00Z - 13:00Z
LIFR
Visibility
1/2SM
Weather
Freezing Fog
Clouds
VV002
📖 Plain English Explanation:

There is a 30% probability of: Visibility will be moderate at 1/2SM. Weather conditions: Freezing Fog. Vertical visibility at 200 feet. Low IFR conditions - challenging even for instrument operations.

FM051300 13:00Z - 19:00Z
LIFR
Wind
30° at 15 kt
Visibility
>6SM
Clouds
BKN004 OVC040
📖 Plain English Explanation:

Winds from the North-Northeast (30°) at 15 kt. Visibility will be excellent at more than 6SM. Broken clouds at 400 feet, Overcast skies at 4000 feet. Low IFR conditions - challenging even for instrument operations.

FM051600 16:00Z - 22:00Z
LIFR
Wind
40° at 15 kt
Visibility
6SM
Weather
Light Rain, Light Drizzle, Mist
Clouds
OVC004
📖 Plain English Explanation:

Winds from the Northeast (40°) at 15 kt. Visibility will be excellent at 6SM. Weather conditions: Light Rain, Light Drizzle, Mist. Overcast skies at 400 feet. Low IFR conditions - challenging even for instrument operations.

PROB30 18:00Z - 02:00Z
IFR
Visibility
2SM
Weather
Light Freezing Rain, Mist
📖 Plain English Explanation:

There is a 30% probability of: Visibility will be moderate at 2SM. Weather conditions: Light Freezing Rain, Mist. Instrument Flight Rules (IFR) conditions - instrument flying required.

FM060200 02:00Z - 08:00Z
LIFR
Wind
40° at 15 kt
Visibility
1/2SM
Weather
Light Drizzle, Fog
Clouds
VV002
📖 Plain English Explanation:

Winds from the Northeast (40°) at 15 kt. Visibility will be moderate at 1/2SM. Weather conditions: Light Drizzle, Fog. Vertical visibility at 200 feet. Low IFR conditions - challenging even for instrument operations.

PROB30 02:00Z - 06:00Z
MVFR
Visibility
1/4SM
Weather
Light Freezing Drizzle, Fog, FCST
📖 Plain English Explanation:

There is a 30% probability of: Visibility will be moderate at 1/4SM. Weather conditions: Light Freezing Drizzle, Fog, FCST. Marginal VFR conditions - some restrictions for visual flying.

📚 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.