North Island Naval Air Station-Halsey Field

KNZY / NZY

San Diego, US

Current TAF Forecast

Raw TAF:
TAF KNZY 101500Z 1015/1115 VRB06KT 9999 BKN013 QNH2982INS BECMG 1016/1018 22009KT 9999 SCT015 QNH2979INS FM110200 VRB06KT 9999 BKN011 QNH2980INS FM110600 VRB03KT 9999 OVC009 QNH2982INS TX21/1019Z TN18/1007Z FS30194

Detailed TAF Table

Parameter
Wed
17:00Z
+-1h
Wed
18:00Z
+0h
Wed
19:00Z
+1h
Wed
20:00Z
+2h
Wed
21:00Z
+3h
Wed
22:00Z
+4h
Wed
23:00Z
+5h
Thu
00:00Z
+6h
Thu
01:00Z
+7h
Thu
02:00Z
+8h
Thu
03:00Z
+9h
Thu
04:00Z
+10h
Thu
05:00Z
+11h
Thu
06:00Z
+12h
Thu
07:00Z
+13h
Thu
08:00Z
+14h
Thu
09:00Z
+15h
Thu
10:00Z
+16h
Thu
11:00Z
+17h
Thu
12:00Z
+18h
Thu
13:00Z
+19h
Wind Dir
VRB
220°
SW
220°
SW
220°
SW
220°
SW
220°
SW
220°
SW
220°
SW
220°
SW
220°
SW
220°
SW
220°
SW
220°
SW
220°
SW
220°
SW
220°
SW
220°
SW
220°
SW
220°
SW
220°
SW
220°
SW
Wind Speed
6 kt
9 kt
9 kt
9 kt
9 kt
9 kt
9 kt
9 kt
9 kt
9 kt
9 kt
9 kt
9 kt
9 kt
9 kt
9 kt
9 kt
9 kt
9 kt
9 kt
9 kt
Visibility
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
Clouds
BKN013
SCT015
SCT015
SCT015
SCT015
SCT015
SCT015
SCT015
SCT015
SCT015
SCT015
SCT015
SCT015
SCT015
SCT015
SCT015
SCT015
SCT015
SCT015
SCT015
SCT015
Ceiling
1,300 ft
AGL
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
Flight Rules MVFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR
Day/Night
☀️
Day
🌇 19:03Z
☀️
Day
🌇 19:03Z
☀️
Day
🌇 19:03Z
🌙
Night
🌇 19:03Z
🌙
Night
🌇 19:03Z
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 04:56Z
🌙
Night
🌅 04:56Z
🌙
Night
🌅 04:56Z
☀️
Day
🌅 04:56Z
☀️
Day
🌅 04:56Z
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
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
MVFR
Wind
VRB° at 6 kt
Visibility
10+ km
Clouds
BKN013
📖 Plain English Explanation:

This is the base forecast condition. Winds will be variable in direction at 6 kt. Visibility will be excellent at 10+ km. Broken clouds at 1300 feet. Marginal VFR conditions - some restrictions for visual flying.

BECMG 16:00Z - 18:00Z
VFR
Wind
220° at 9 kt
Visibility
10+ km
Clouds
SCT015
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the Southwest (220°) at 9 kt. Visibility will be excellent at 10+ km. Scattered clouds at 1500 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM110200 02:00Z - 08:00Z
MVFR
Wind
VRB° at 6 kt
Visibility
10+ km
Clouds
BKN011
📖 Plain English Explanation:

Winds will be variable in direction at 6 kt. Visibility will be excellent at 10+ km. Broken clouds at 1100 feet. Marginal VFR conditions - some restrictions for visual flying.

FM110600 06:00Z - 12:00Z
IFR
Wind
VRB° at 3 kt
Visibility
10+ km
Clouds
OVC009
📖 Plain English Explanation:

Winds will be variable in direction at 3 kt. Visibility will be excellent at 10+ km. Overcast skies at 900 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.