Logan International Airport

KBOS / BOS

Boston, US

Current TAF Forecast

Raw TAF:
TAF KBOS 042037Z 0421/0524 34007KT P6SM SCT060 PROB30 0423/0502 4SM TSRA OVC035CB FM050300 31009KT P6SM BKN080 FM050900 01004KT P6SM SCT100 FM051400 06007KT P6SM SCT080 FM051900 09009KT P6SM SCT150

Detailed TAF Table

Parameter
Sat
22:00Z
+-1h
Sat
23:00Z
+0h
Sun
00:00Z
+1h
Sun
01:00Z
+2h
Sun
02:00Z
+3h
Sun
03:00Z
+4h
Sun
04:00Z
+5h
Sun
05:00Z
+6h
Sun
06:00Z
+7h
Sun
07:00Z
+8h
Sun
08:00Z
+9h
Sun
09:00Z
+10h
Sun
10:00Z
+11h
Sun
11:00Z
+12h
Sun
12:00Z
+13h
Sun
13:00Z
+14h
Sun
14:00Z
+15h
Sun
15:00Z
+16h
Sun
16:00Z
+17h
Sun
17:00Z
+18h
Sun
18:00Z
+19h
Sun
19:00Z
+20h
Sun
20:00Z
+21h
Sun
21:00Z
+22h
Sun
22:00Z
+23h
Wind Dir
340°
N
340°
N
340°
N
340°
N
340°
N
310°
NW
310°
NW
310°
NW
310°
NW
310°
NW
310°
NW
10°
N
10°
N
10°
N
10°
N
10°
N
60°
NE
60°
NE
60°
NE
60°
NE
60°
NE
90°
E
90°
E
90°
E
90°
E
Wind Speed
7 kt
7 kt
7 kt
7 kt
7 kt
9 kt
9 kt
9 kt
9 kt
9 kt
9 kt
4 kt
4 kt
4 kt
4 kt
4 kt
7 kt
7 kt
7 kt
7 kt
7 kt
9 kt
9 kt
9 kt
9 kt
Visibility
>6SM
4SM
4SM
4SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
Weather
☀️ Clear
Thunderstorm Rain
TSRA
30%
Thunderstorm Rain
TSRA
30%
Thunderstorm Rain
TSRA
30%
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Clouds
SCT060
OVC035CB
OVC035CB
OVC035CB
SCT060
BKN080
BKN080
BKN080
BKN080
BKN080
BKN080
SCT100
SCT100
SCT100
SCT100
SCT100
SCT080
SCT080
SCT080
SCT080
SCT080
SCT150
SCT150
SCT150
SCT150
Ceiling
🌤️ Unlimited
3,500 ft
AGL
3,500 ft
AGL
3,500 ft
AGL
🌤️ Unlimited
8,000 ft
AGL
8,000 ft
AGL
8,000 ft
AGL
8,000 ft
AGL
8,000 ft
AGL
8,000 ft
AGL
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
Flight Rules VFR MVFR MVFR MVFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR
Day/Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 04:41Z
🌙
Night
🌅 04:41Z
🌙
Night
🌅 04:41Z
☀️
Day
🌅 04:41Z
☀️
Day
🌅 04:41Z
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 19:18Z
☀️
Day
🌇 19:18Z
☀️
Day
🌇 19:18Z
🌙
Night
🌇 19:18Z
🌙
Night
🌇 19:18Z
🌙
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
VFR
Wind
340° at 7 kt
Visibility
>6SM
Clouds
SCT060
📖 Plain English Explanation:

This is the base forecast condition. Winds from the North-Northwest (340°) at 7 kt. Visibility will be excellent at more than 6SM. Scattered clouds at 6000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

PROB30 23:00Z - 02:00Z
MVFR
Visibility
4SM
Weather
Thunderstorm Rain
Clouds
OVC035CB
📖 Plain English Explanation:

There is a 30% probability of: Visibility will be good at 4SM. Weather conditions: Thunderstorm Rain. Overcast skies at 3500 feet. Marginal VFR conditions - some restrictions for visual flying.

FM050300 03:00Z - 09:00Z
VFR
Wind
310° at 9 kt
Visibility
>6SM
Clouds
BKN080
📖 Plain English Explanation:

Winds from the Northwest (310°) at 9 kt. Visibility will be excellent at more than 6SM. Broken clouds at 8000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM050900 09:00Z - 15:00Z
VFR
Wind
10° at 4 kt
Visibility
>6SM
Clouds
SCT100
📖 Plain English Explanation:

Winds from the North (10°) at 4 kt. Visibility will be excellent at more than 6SM. Scattered clouds at 10000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM051400 14:00Z - 20:00Z
VFR
Wind
60° at 7 kt
Visibility
>6SM
Clouds
SCT080
📖 Plain English Explanation:

Winds from the East-Northeast (60°) at 7 kt. Visibility will be excellent at more than 6SM. Scattered clouds at 8000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM051900 19:00Z - 01:00Z
VFR
Wind
90° at 9 kt
Visibility
>6SM
Clouds
SCT150
📖 Plain English Explanation:

Winds from the East (90°) at 9 kt. Visibility will be excellent at more than 6SM. Scattered clouds at 15000 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.