North Island Naval Air Station-Halsey Field

KNZY / NZY

San Diego, US

Current TAF Forecast

Raw TAF:
TAF KNZY 1523/1623 30008KT 9999 SKC QNH2980INS FM160300 VRB04KT 9999 SCT012 QNH2984INS TEMPO 1609/1615 BKN012 FM161800 29009KT 9999 FEW015 QNH2986INS TX24/1622Z TN19/1613Z FS30160

Detailed TAF Table

Parameter
Tue
03:00Z
+-1h
Tue
04:00Z
+0h
Tue
05:00Z
+1h
Tue
06:00Z
+2h
Tue
07:00Z
+3h
Tue
08:00Z
+4h
Tue
09:00Z
+5h
Tue
10:00Z
+6h
Tue
11:00Z
+7h
Tue
12:00Z
+8h
Tue
13:00Z
+9h
Tue
14:00Z
+10h
Tue
15:00Z
+11h
Tue
16:00Z
+12h
Tue
17:00Z
+13h
Tue
18:00Z
+14h
Tue
19:00Z
+15h
Tue
20:00Z
+16h
Tue
21:00Z
+17h
Tue
22:00Z
+18h
Tue
23:00Z
+19h
Wed
00:00Z
+20h
Wed
01:00Z
+21h
Wed
02:00Z
+22h
Wed
03:00Z
+23h
Wed
04:00Z
+24h
Wed
05:00Z
+25h
Wed
06:00Z
+26h
Wed
07:00Z
+27h
Wed
08:00Z
+28h
Wed
09:00Z
+29h
Wed
10:00Z
+30h
Wed
11:00Z
+31h
Wed
12:00Z
+32h
Wed
13:00Z
+33h
Wed
14:00Z
+34h
Wed
15:00Z
+35h
Wed
16:00Z
+36h
Wed
17:00Z
+37h
Wed
18:00Z
+38h
Wed
19:00Z
+39h
Wed
20:00Z
+40h
Wed
21:00Z
+41h
Wed
22:00Z
+42h
Wed
23:00Z
+43h
Thu
00:00Z
+44h
Thu
01:00Z
+45h
Wind Dir
300°
NW
300°
NW
300°
NW
300°
NW
300°
NW
300°
NW
300°
NW
300°
NW
300°
NW
300°
NW
300°
NW
300°
NW
300°
NW
300°
NW
300°
NW
290°
W
290°
W
290°
W
290°
W
290°
W
290°
W
300°
NW
300°
NW
300°
NW
300°
NW
300°
NW
300°
NW
300°
NW
300°
NW
300°
NW
300°
NW
300°
NW
300°
NW
300°
NW
300°
NW
300°
NW
300°
NW
300°
NW
300°
NW
300°
NW
300°
NW
300°
NW
300°
NW
300°
NW
300°
NW
300°
NW
300°
NW
Wind Speed
8kt
8kt
8kt
8kt
8kt
8kt
8kt
8kt
8kt
8kt
8kt
8kt
8kt
8kt
8kt
9kt
9kt
9kt
9kt
9kt
9kt
8kt
8kt
8kt
8kt
8kt
8kt
8kt
8kt
8kt
8kt
8kt
8kt
8kt
8kt
8kt
8kt
8kt
8kt
8kt
8kt
8kt
8kt
8kt
8kt
8kt
8kt
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
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
CLR
CLR
CLR
CLR
CLR
CLR
BKN012
BKN012
BKN012
BKN012
BKN012
BKN012
CLR
CLR
CLR
FEW015
FEW015
FEW015
FEW015
FEW015
FEW015
CLR
CLR
CLR
CLR
CLR
CLR
CLR
CLR
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
1200ft
AGL
1200ft
AGL
1200ft
AGL
1200ft
AGL
1200ft
AGL
1200ft
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
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
Flight Rules VFR VFR VFR VFR VFR VFR MVFR MVFR MVFR MVFR MVFR MVFR 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 VFR VFR VFR
Day/Night
🌙
Night
🌅 05:53
🌙
Night
🌅 05:53
🌙
Night
🌅 05:53
☀️
Day
🌅 05:53
☀️
Day
🌅 05:53
☀️
Day
☀️
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
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
300° at 8 kt
Visibility
10+ km
Clouds
CLR
📖 Plain English Explanation:

This is the base forecast condition. Winds from the West-Northwest (300°) at 8kt. Visibility will be excellent at 10+ km. Skies will be clear. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM160300 2025-10-16 03:00:00 - 2025-10-16 09:00:00
VFR
Wind
VRB° at 4 kt
Visibility
10+ km
Clouds
SCT012
📖 Plain English Explanation:

Winds will be variable in direction at 4kt. Visibility will be excellent at 10+ km. Scattered clouds at 1200 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

TEMPO 2025-09-16 09:00:00 - 2025-09-16 15:00:00
MVFR
Clouds
BKN012
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Broken clouds at 1200 feet. Marginal VFR conditions - some restrictions for visual flying.

FM161800 2025-09-16 18:00:00 - 2025-09-17 00:00:00
VFR
Wind
290° at 9 kt
Visibility
10+ km
Clouds
FEW015
📖 Plain English Explanation:

Winds from the West-Northwest (290°) at 9kt. Visibility will be excellent at 10+ km. Few clouds at 1500 feet. 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.