San Clemente Island Naval Auxiliary Landing Field

KNUC

San Clemente Island, US

Current TAF Forecast

Raw TAF:
TAF AMD KNUC 1523/1623 VRB06KT 9999 SCT011 QNH2983INS FM160100 27006KT 9999 BKN010 QNH2981INS BECMG 1605/1607 VRB06KT 9999 OVC007 QNH2982INS FM161800 27008KT 9999 FEW050 BKN110 QNH2984INS LAST NO AMDS AFT 1523 NEXT 1615 TX23/1523Z TN17/1613Z AMD 2330 FS30227

Detailed TAF Table

Parameter
Tue
09:00Z
+-1h
Tue
10:00Z
+0h
Tue
11:00Z
+1h
Tue
12:00Z
+2h
Tue
13:00Z
+3h
Tue
14:00Z
+4h
Tue
15:00Z
+5h
Tue
16:00Z
+6h
Tue
17:00Z
+7h
Tue
18:00Z
+8h
Tue
19:00Z
+9h
Tue
20:00Z
+10h
Tue
21:00Z
+11h
Tue
22:00Z
+12h
Tue
23:00Z
+13h
Wed
00:00Z
+14h
Wed
01:00Z
+15h
Wed
02:00Z
+16h
Wed
03:00Z
+17h
Wed
04:00Z
+18h
Wed
05:00Z
+19h
Wed
06:00Z
+20h
Wed
07:00Z
+21h
Wed
08:00Z
+22h
Wed
09:00Z
+23h
Wed
10:00Z
+24h
Wed
11:00Z
+25h
Wed
12:00Z
+26h
Wed
13:00Z
+27h
Wed
14:00Z
+28h
Wed
15:00Z
+29h
Wed
16:00Z
+30h
Wed
17:00Z
+31h
Wed
18:00Z
+32h
Wed
19:00Z
+33h
Wed
20:00Z
+34h
Wed
21:00Z
+35h
Wed
22:00Z
+36h
Wed
23:00Z
+37h
Thu
00:00Z
+38h
Thu
01:00Z
+39h
Thu
02:00Z
+40h
Thu
03:00Z
+41h
Thu
04:00Z
+42h
Thu
05:00Z
+43h
Thu
06:00Z
+44h
Thu
07:00Z
+45h
Wind Dir
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
270°
W
270°
W
270°
W
270°
W
270°
W
270°
W
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
Wind Speed
6kt
6kt
6kt
6kt
6kt
6kt
6kt
6kt
6kt
8kt
8kt
8kt
8kt
8kt
8kt
6kt
6kt
6kt
6kt
6kt
6kt
6kt
6kt
6kt
6kt
6kt
6kt
6kt
6kt
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
10+ km
10+ km
10+ km
2.33 km
2.33 km
2.33 km
2.33 km
2.33 km
2.33 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
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
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Clouds
SCT011
SCT011
SCT011
SCT011
SCT011
SCT011
SCT011
SCT011
SCT011
FEW050
BKN110
FEW050
BKN110
FEW050
BKN110
FEW050
BKN110
FEW050
BKN110
FEW050
BKN110
SCT011
SCT011
SCT011
SCT011
SCT011
SCT011
SCT011
SCT011
SCT011
SCT011
SCT011
SCT011
SCT011
SCT011
SCT011
SCT011
SCT011
SCT011
SCT011
SCT011
SCT011
SCT011
SCT011
SCT011
SCT011
SCT011
SCT011
SCT011
SCT011
SCT011
SCT011
SCT011
Ceiling
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
11000ft
AGL
11000ft
AGL
11000ft
AGL
11000ft
AGL
11000ft
AGL
11000ft
AGL
🌤️ 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
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
Flight Rules VFR VFR VFR VFR VFR VFR VFR VFR VFR IFR IFR IFR IFR IFR IFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR
Day/Night
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 18:06
☀️
Day
🌇 18:06
☀️
Day
🌇 18:06
🌙
Night
🌇 18:06
🌙
Night
🌇 18:06
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 05:54
🌙
Night
🌅 05:54
🌙
Night
🌅 05:54
☀️
Day
🌅 05:54
☀️
Day
🌅 05:54
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 18:05
☀️
Day
🌇 18:05
☀️
Day
🌇 18:05
🌙
Night
🌇 18:05
🌙
Night
🌇 18:05
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 05:55
🌙
Night
🌅 05:55
🌙
Night
🌅 05:55
☀️
Day
🌅 05:55
☀️
Day
🌅 05:55
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 occurrence • AGL: Above Ground Level

Forecast Periods

BASE
VFR
Wind
VRB° at 6 kt
Visibility
10+ km
Clouds
SCT011
📖 Plain English Explanation:

This is the base forecast condition. Winds will be variable in direction at 6kt. Visibility will be excellent at 10+ km. Scattered clouds at 1100 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM160100 2025-10-16 01:00:00 - 2025-10-16 07:00:00
MVFR
Wind
270° at 6 kt
Visibility
10+ km
Clouds
BKN010
📖 Plain English Explanation:

Winds from the West (270°) at 6kt. Visibility will be excellent at 10+ km. Broken clouds at 1000 feet. Marginal VFR conditions - some restrictions for visual flying.

BECMG 2025-10-16 05:00:00 - 2025-10-16 07:00:00
IFR
Wind
VRB° at 6 kt
Visibility
10+ km
Clouds
OVC007
📖 Plain English Explanation:

Conditions will gradually change to become: Winds will be variable in direction at 6kt. Visibility will be excellent at 10+ km. Overcast skies at 700 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

FM161800 2025-09-16 18:00:00 - 2025-09-17 00:00:00
IFR
Wind
270° at 8 kt
Visibility
2.33 km
Clouds
FEW050 BKN110
📖 Plain English Explanation:

Winds from the West (270°) at 8kt. Visibility will be moderate at 2.33 km. Few clouds at 5000 feet, Broken clouds at 11000 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

📚 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.