North Island Naval Air Station-Halsey Field

KNZY / NZY

San Diego, US

Current TAF Forecast

Raw TAF:
TAF COR KNZY 0423/0523 27008KT 9999 FEW010 BKN015 BKN250 QNH2988INS BECMG 0501/0503 VRB05KT 9999 FEW007 BKN016 BKN025 QNH2989INS TEMPO 0504/0508 SCT018 FM051600 VRB06KT 9999 SCT025 SCT250 QNH2988INS FM052000 33010KT 9999 SCT025 QNH2984INS TX19/0520Z TN13/0513Z COR 0035 FS30222

Detailed TAF Table

Parameter
Thu
01:00Z
+-1h
Thu
02:00Z
+0h
Thu
03:00Z
+1h
Thu
04:00Z
+2h
Thu
05:00Z
+3h
Thu
06:00Z
+4h
Thu
07:00Z
+5h
Thu
08:00Z
+6h
Thu
09:00Z
+7h
Thu
10:00Z
+8h
Thu
11:00Z
+9h
Thu
12:00Z
+10h
Thu
13:00Z
+11h
Thu
14:00Z
+12h
Thu
15:00Z
+13h
Thu
16:00Z
+14h
Thu
17:00Z
+15h
Thu
18:00Z
+16h
Thu
19:00Z
+17h
Thu
20:00Z
+18h
Thu
21:00Z
+19h
Thu
22:00Z
+20h
Thu
23:00Z
+21h
Fri
00:00Z
+22h
Wind Dir
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
Wind Speed
8 kt
8 kt
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
5 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
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
Clouds
FEW010
BKN015
FEW010
BKN015
FEW007
BKN016
SCT018
SCT018
SCT018
SCT018
FEW007
BKN016
FEW007
BKN016
FEW007
BKN016
FEW007
BKN016
FEW007
BKN016
FEW007
BKN016
FEW007
BKN016
FEW007
BKN016
FEW007
BKN016
FEW007
BKN016
FEW007
BKN016
FEW007
BKN016
FEW007
BKN016
FEW007
BKN016
FEW007
BKN016
FEW007
BKN016
FEW007
BKN016
Ceiling
1,500 ft
AGL
1,500 ft
AGL
1,600 ft
AGL
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
1,600 ft
AGL
1,600 ft
AGL
1,600 ft
AGL
1,600 ft
AGL
1,600 ft
AGL
1,600 ft
AGL
1,600 ft
AGL
1,600 ft
AGL
1,600 ft
AGL
1,600 ft
AGL
1,600 ft
AGL
1,600 ft
AGL
1,600 ft
AGL
1,600 ft
AGL
1,600 ft
AGL
1,600 ft
AGL
1,600 ft
AGL
Flight Rules MVFR MVFR MVFR VFR VFR VFR VFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR
Day/Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 06:19Z
🌙
Night
🌅 06:19Z
🌅
Dawn
🌅 06:19Z
☀️
Day
🌅 06:19Z
☀️
Day
🌅 06:19Z
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 17:40Z
☀️
Day
🌇 17:40Z
☀️
Day
🌇 17:40Z
🌇
Dusk
🌇 17:40Z
🌙
Night
🌇 17:40Z
🌙
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 occurrenceAGL: Above Ground Level

Forecast Periods

BASE
MVFR
Wind
270° at 8 kt
Visibility
10+ km
Clouds
FEW010 BKN015 BKN250
📖 Plain English Explanation:

This is the base forecast condition. Winds from the West (270°) at 8 kt. Visibility will be excellent at 10+ km. Few clouds at 1000 feet, Broken clouds at 1500 feet, Broken clouds at 25000 feet. Marginal VFR conditions - some restrictions for visual flying.

BECMG 01:00Z - 03:00Z
MVFR
Wind
VRB° at 5 kt
Visibility
10+ km
Clouds
FEW007 BKN016 BKN025
📖 Plain English Explanation:

Conditions will gradually change to become: Winds will be variable in direction at 5 kt. Visibility will be excellent at 10+ km. Few clouds at 700 feet, Broken clouds at 1600 feet, Broken clouds at 2500 feet. Marginal VFR conditions - some restrictions for visual flying.

TEMPO 04:00Z - 08:00Z
VFR
Clouds
SCT018
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Scattered clouds at 1800 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM051600 16:00Z - 22:00Z
VFR
Wind
VRB° at 6 kt
Visibility
10+ km
Clouds
SCT025 SCT250
📖 Plain English Explanation:

Winds will be variable in direction at 6 kt. Visibility will be excellent at 10+ km. Scattered clouds at 2500 feet, Scattered clouds at 25000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM052000 20:00Z - 02:00Z
LIFR
Wind
330° at 10 kt
Visibility
0.035 km
Clouds
SCT025
📖 Plain English Explanation:

Winds from the North-Northwest (330°) at 10 kt. Visibility will be poor at 0.035 km. Scattered clouds at 2500 feet. Low IFR conditions - challenging even for instrument 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.