North Island Naval Air Station-Halsey Field

KNZY / NZY

San Diego, US

Current TAF Forecast

Raw TAF:
TAF KNZY 270700Z 2707/2807 VRB04KT 8000 BR BKN012 BKN150 QNH2990INS BECMG 2709/2711 VRB03KT 8000 BR BKN010 BKN150 QNH2991INS TEMPO 2711/2717 4800 BR BKN007 BECMG 2717/2719 22008KT 9999 SCT011 QNH2987INS FM280200 VRB05KT 9000 BR BKN011 QNH2986INS AUTOMATED SENSOR METWATCH 2707 TIL 2714 TX25/2722Z TN20/2712Z FS30175

Detailed TAF Table

Parameter
Mon
09:00Z
+-1h
Mon
10:00Z
+0h
Mon
11:00Z
+1h
Mon
12:00Z
+2h
Mon
13:00Z
+3h
Mon
14:00Z
+4h
Mon
15:00Z
+5h
Mon
16:00Z
+6h
Mon
17:00Z
+7h
Mon
18:00Z
+8h
Mon
19:00Z
+9h
Mon
20:00Z
+10h
Mon
21:00Z
+11h
Mon
22:00Z
+12h
Mon
23:00Z
+13h
Tue
00:00Z
+14h
Tue
01:00Z
+15h
Tue
02:00Z
+16h
Tue
03:00Z
+17h
Tue
04:00Z
+18h
Tue
05:00Z
+19h
Wind Dir
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
Wind Speed
4 kt
4 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
Visibility
8 km
8 km
4.8 km
4.8 km
4.8 km
4.8 km
4.8 km
4.8 km
8 km
8 km
8 km
8 km
8 km
8 km
8 km
8 km
8 km
8 km
8 km
8 km
8 km
Weather
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Clouds
BKN012
BKN150
BKN012
BKN150
BKN007
BKN007
BKN007
BKN007
BKN007
BKN007
BKN010
BKN150
BKN010
BKN150
BKN010
BKN150
BKN010
BKN150
BKN010
BKN150
BKN010
BKN150
BKN010
BKN150
BKN010
BKN150
BKN010
BKN150
BKN010
BKN150
BKN010
BKN150
BKN010
BKN150
BKN010
BKN150
Ceiling
1,200 ft
AGL
1,200 ft
AGL
700 ft
AGL
700 ft
AGL
700 ft
AGL
700 ft
AGL
700 ft
AGL
700 ft
AGL
1,000 ft
AGL
1,000 ft
AGL
1,000 ft
AGL
1,000 ft
AGL
1,000 ft
AGL
1,000 ft
AGL
1,000 ft
AGL
1,000 ft
AGL
1,000 ft
AGL
1,000 ft
AGL
1,000 ft
AGL
1,000 ft
AGL
1,000 ft
AGL
Flight Rules IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR
Day/Night
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 18:53Z
☀️
Day
🌇 18:53Z
☀️
Day
🌇 18:53Z
🌇
Dusk
🌇 18:53Z
🌙
Night
🌇 18:53Z
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 05:07Z
🌙
Night
🌅 05:07Z
🌅
Dawn
🌅 05:07Z
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
IFR
Wind
VRB° at 4 kt
Visibility
8 km
Weather
Mist
Clouds
BKN012 BKN150
📖 Plain English Explanation:

This is the base forecast condition. Winds will be variable in direction at 4 kt. Visibility will be good at 8 km. Weather conditions: Mist. Broken clouds at 1200 feet, Broken clouds at 15000 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

BECMG 09:00Z - 11:00Z
IFR
Wind
VRB° at 3 kt
Visibility
8 km
Weather
Mist
Clouds
BKN010 BKN150
📖 Plain English Explanation:

Conditions will gradually change to become: Winds will be variable in direction at 3 kt. Visibility will be good at 8 km. Weather conditions: Mist. Broken clouds at 1000 feet, Broken clouds at 15000 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

TEMPO 11:00Z - 17:00Z
IFR
Visibility
4.8 km
Weather
Mist
Clouds
BKN007
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Visibility will be moderate at 4.8 km. Weather conditions: Mist. Broken clouds at 700 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

BECMG 17:00Z - 19:00Z
VFR
Wind
220° at 8 kt
Visibility
10+ km
Clouds
SCT011
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the Southwest (220°) at 8 kt. Visibility will be excellent at 10+ km. Scattered clouds at 1100 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM280200 02:00Z - 08:00Z
IFR
Wind
VRB° at 5 kt
Visibility
2.714 km
Weather
Mist
Clouds
BKN011
📖 Plain English Explanation:

Winds will be variable in direction at 5 kt. Visibility will be moderate at 2.714 km. Weather conditions: Mist. Broken clouds at 1100 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.