Naval Station Mayport / Admiral David L McDonald Field

KNRB / NRB

Jacksonville, US

Current TAF Forecast

Raw TAF:
TAF KNRB 1015/1115 COR 13008KT 9999 VCSH FEW010 BKN015CB BKN250 QNH3005INS TEMPO 1015/1018 4800 -SHRA BKN008 OVC020 FM102100 13010G15KT 9999 VCSHBKN035 BKN250 QNH2999INS FM110100 16009KT 9999 FEW050 SCT250 QNH2997INS FM110800 VRB05KT 8000 BR SCT006 SCT250 QNH3000INS TX28/1019Z TN24/1111Z COR 1520 FN20022

Detailed TAF Table

Parameter
Wed
15:00Z
+-1h
Wed
16:00Z
+0h
Wed
17:00Z
+1h
Wed
18:00Z
+2h
Wed
19:00Z
+3h
Wed
20:00Z
+4h
Wed
21:00Z
+5h
Wed
22:00Z
+6h
Wed
23:00Z
+7h
Thu
00:00Z
+8h
Thu
01:00Z
+9h
Thu
02:00Z
+10h
Thu
03:00Z
+11h
Thu
04:00Z
+12h
Thu
05:00Z
+13h
Thu
06:00Z
+14h
Thu
07:00Z
+15h
Thu
08:00Z
+16h
Thu
09:00Z
+17h
Thu
10:00Z
+18h
Thu
11:00Z
+19h
Thu
12:00Z
+20h
Wind Dir
130°
SE
130°
SE
130°
SE
130°
SE
130°
SE
130°
SE
130°
SE
130°
SE
130°
SE
130°
SE
160°
S
160°
S
160°
S
160°
S
160°
S
160°
S
130°
SE
VRB
VRB
VRB
VRB
VRB
Wind Speed
8 kt
8 kt
8 kt
8 kt
8 kt
8 kt
10 kt
G15 kt
10 kt
G15 kt
10 kt
G15 kt
10 kt
G15 kt
9 kt
G15 kt
9 kt
G15 kt
9 kt
9 kt
9 kt
9 kt
8 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
1.52 km
1.52 km
1.52 km
1.52 km
1.52 km
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Clouds
FEW010
BKN015CB
FEW010
BKN015CB
FEW010
BKN015CB
FEW010
BKN015CB
FEW010
BKN015CB
FEW010
BKN015CB
BKN250
BKN250
BKN250
BKN250
FEW050
SCT250
FEW050
SCT250
FEW050
SCT250
FEW050
SCT250
FEW050
SCT250
FEW050
SCT250
FEW010
BKN015CB
SCT006
SCT250
SCT006
SCT250
SCT006
SCT250
SCT006
SCT250
SCT006
SCT250
Ceiling
1,500 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
25,000 ft
AGL
25,000 ft
AGL
25,000 ft
AGL
25,000 ft
AGL
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
1,500 ft
AGL
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
Flight Rules MVFR MVFR MVFR MVFR MVFR MVFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR MVFR LIFR LIFR LIFR LIFR LIFR
Day/Night
☀️
Day
☀️
Day
🌇 18:59Z
☀️
Day
🌇 18:59Z
☀️
Day
🌇 18:59Z
🌇
Dusk
🌇 18:59Z
🌙
Night
🌇 18:59Z
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 05:00Z
🌙
Night
🌅 05:00Z
🌅
Dawn
🌅 05:00Z
☀️
Day
🌅 05:00Z
☀️
Day
🌅 05:00Z
☀️
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
130° at 8 kt
Visibility
10+ km
Clouds
FEW010 BKN015CB BKN250
📖 Plain English Explanation:

This is the base forecast condition. Winds from the Southeast (130°) 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.

TEMPO 15:00Z - 18:00Z
IFR
Visibility
4.8 km
Weather
Light Showers Rain
Clouds
BKN008 OVC020
📖 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: Light Showers Rain. Broken clouds at 800 feet, Overcast skies at 2000 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

FM102100 21:00Z - 03:00Z
VFR
Wind
130° at 10 kt
Gusts: 15 kt
Visibility
10+ km
Clouds
BKN250
📖 Plain English Explanation:

Winds from the Southeast (130°) at 10 kt. Gusts up to 15 kt are expected. Visibility will be excellent at 10+ km. Broken clouds at 25000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM110100 01:00Z - 07:00Z
VFR
Wind
160° at 9 kt
Visibility
10+ km
Clouds
FEW050 SCT250
📖 Plain English Explanation:

Winds from the South-Southeast (160°) at 9 kt. Visibility will be excellent at 10+ km. Few clouds at 5000 feet, Scattered clouds at 25000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM110800 08:00Z - 14:00Z
LIFR
Wind
VRB° at 5 kt
Visibility
1.52 km
Weather
Mist
Clouds
SCT006 SCT250
📖 Plain English Explanation:

Winds will be variable in direction at 5 kt. Visibility will be moderate at 1.52 km. Weather conditions: Mist. Scattered clouds at 600 feet, Scattered clouds at 25000 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.