North Island Naval Air Station-Halsey Field

KNZY / NZY

San Diego, US

Current TAF Forecast

Raw TAF:
TAF KNZY 210700Z 2107/2207 VRB06KT 9999 FEW020 BKN130 QNH2998INS FM211000 VRB06KT 9999 SCT010 QNH2998INS TEMPO 2113/2118 SCT010 BKN020 BECMG 2120/2122 25010KT 9999 FEW015 QNH2999INS BECMG 2202/2204 29009KT 8000 -SHRA BKN015 BKN050 QNH3001INS TX21/2122Z TN14/2113Z FS30216

Detailed TAF Table

Parameter
Tue
14:00Z
+-1h
Tue
15:00Z
+0h
Tue
16:00Z
+1h
Tue
17:00Z
+2h
Tue
18:00Z
+3h
Tue
19:00Z
+4h
Tue
20:00Z
+5h
Tue
21:00Z
+6h
Tue
22:00Z
+7h
Tue
23:00Z
+8h
Wed
00:00Z
+9h
Wed
01:00Z
+10h
Wed
02:00Z
+11h
Wed
03:00Z
+12h
Wed
04:00Z
+13h
Wed
05:00Z
+14h
Wind Dir
VRB
VRB
VRB
VRB
VRB
VRB
250°
W
250°
W
250°
W
250°
W
250°
W
250°
W
290°
W
290°
W
290°
W
290°
W
Wind Speed
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
10 kt
10 kt
10 kt
10 kt
10 kt
10 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
8 km
8 km
8 km
8 km
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Clouds
FEW020
BKN130
FEW020
BKN130
FEW020
BKN130
FEW020
BKN130
FEW020
BKN130
FEW020
BKN130
FEW015
FEW015
FEW015
FEW015
FEW015
FEW015
BKN015
BKN050
BKN015
BKN050
BKN015
BKN050
BKN015
BKN050
Ceiling
13,000 ft
AGL
13,000 ft
AGL
13,000 ft
AGL
13,000 ft
AGL
13,000 ft
AGL
13,000 ft
AGL
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
1,500 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
Flight Rules VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR MVFR MVFR MVFR MVFR
Day/Night
☀️
Day
☀️
Day
☀️
Day
🌇 18:31Z
☀️
Day
🌇 18:31Z
☀️
Day
🌇 18:31Z
🌇
Dusk
🌇 18:31Z
🌙
Night
🌇 18:31Z
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 05:28Z
🌙
Night
🌅 05:28Z
🌅
Dawn
🌅 05:28Z
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
VFR
Wind
VRB° at 6 kt
Visibility
10+ km
Clouds
FEW020 BKN130
📖 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. Few clouds at 2000 feet, Broken clouds at 13000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM211000 10:00Z - 16:00Z
VFR
Wind
VRB° at 6 kt
Visibility
10+ km
Clouds
SCT010
📖 Plain English Explanation:

Winds will be variable in direction at 6 kt. Visibility will be excellent at 10+ km. Scattered clouds at 1000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

TEMPO 13:00Z - 18:00Z
MVFR
Clouds
SCT010 BKN020
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Scattered clouds at 1000 feet, Broken clouds at 2000 feet. Marginal VFR conditions - some restrictions for visual flying.

BECMG 20:00Z - 22:00Z
VFR
Wind
250° at 10 kt
Visibility
10+ km
Clouds
FEW015
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the West-Southwest (250°) at 10 kt. Visibility will be excellent at 10+ km. Few clouds at 1500 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

BECMG 02:00Z - 04:00Z
MVFR
Wind
290° at 9 kt
Visibility
8 km
Weather
Light Showers Rain
Clouds
BKN015 BKN050
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the West-Northwest (290°) at 9 kt. Visibility will be good at 8 km. Weather conditions: Light Showers Rain. Broken clouds at 1500 feet, Broken clouds at 5000 feet. Marginal VFR conditions - some restrictions for visual flying.

📚 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.