Frederick Douglass Greater Rochester International Airport

KROC / ROC

Rochester, US

Current TAF Forecast

Raw TAF:
TAF KROC 101120Z 1012/1112 22007KT P6SM BKN120 TEMPO 1012/1014 6SM -SHRA OVC025 FM101400 24010G17KT P6SM BKN020 TEMPO 1014/1016 4SM -TSRA OVC015CB FM101600 26009KT 6SM -SHRA BKN020 PROB30 1016/1018 4SM -TSRA OVC015CB FM101800 24010G18KT P6SM OVC025 PROB30 1018/1020 4SM -TSRA OVC015CB FM110900 24007KT P6SM BKN030 PROB30 1109/1111 4SM -SHRA OVC015

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
Wind Dir
220°
SW
220°
SW
220°
SW
220°
SW
220°
SW
240°
SW
240°
SW
240°
SW
240°
SW
220°
SW
220°
SW
220°
SW
220°
SW
220°
SW
220°
SW
220°
SW
220°
SW
220°
SW
220°
SW
220°
SW
Wind Speed
7 kt
7 kt
7 kt
7 kt
G18 kt
7 kt
G18 kt
10 kt
G18 kt
10 kt
G18 kt
10 kt
G18 kt
10 kt
G18 kt
7 kt
7 kt
7 kt
7 kt
7 kt
7 kt
7 kt
7 kt
7 kt
7 kt
7 kt
Visibility
>6SM
4SM
4SM
4SM
4SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
4SM
4SM
Weather
☀️ Clear
Light Thunderstorm Rain
-TSRA
30%
Light Thunderstorm Rain
-TSRA
30%
Light Thunderstorm Rain
-TSRA
30%
Light Thunderstorm Rain
-TSRA
30%
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Light Showers Rain
-SHRA
30%
Light Showers Rain
-SHRA
30%
Clouds
BKN120
OVC015CB
OVC015CB
OVC015CB
OVC015CB
OVC025
OVC025
OVC025
OVC025
BKN120
BKN120
BKN120
BKN120
BKN120
BKN120
BKN120
BKN120
BKN120
OVC015
OVC015
Ceiling
12,000 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
2,500 ft
AGL
2,500 ft
AGL
2,500 ft
AGL
2,500 ft
AGL
12,000 ft
AGL
12,000 ft
AGL
12,000 ft
AGL
12,000 ft
AGL
12,000 ft
AGL
12,000 ft
AGL
12,000 ft
AGL
12,000 ft
AGL
12,000 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
Flight Rules VFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR VFR VFR VFR VFR VFR VFR VFR VFR VFR MVFR MVFR
Day/Night
☀️
Day
☀️
Day
☀️
Day
🌇 19:20Z
☀️
Day
🌇 19:20Z
☀️
Day
🌇 19:20Z
🌙
Night
🌇 19:20Z
🌙
Night
🌇 19:20Z
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 04:39Z
🌙
Night
🌅 04:39Z
🌙
Night
🌅 04:39Z
☀️
Day
🌅 04:39Z
☀️
Day
🌅 04:39Z
☀️
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 occurrence • AGL: Above Ground Level

Forecast Periods

BASE
VFR
Wind
220° at 7 kt
Visibility
>6SM
Clouds
BKN120
📖 Plain English Explanation:

This is the base forecast condition. Winds from the Southwest (220°) at 7 kt. Visibility will be excellent at more than 6SM. Broken clouds at 12000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

TEMPO 12:00Z - 14:00Z
MVFR
Visibility
6SM
Weather
Light Showers Rain
Clouds
OVC025
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Visibility will be excellent at 6SM. Weather conditions: Light Showers Rain. Overcast skies at 2500 feet. Marginal VFR conditions - some restrictions for visual flying.

FM101400 14:00Z - 20:00Z
MVFR
Wind
240° at 10 kt
Gusts: 17 kt
Visibility
>6SM
Clouds
BKN020
📖 Plain English Explanation:

Winds from the West-Southwest (240°) at 10 kt. Gusts up to 17 kt are expected. Visibility will be excellent at more than 6SM. Broken clouds at 2000 feet. Marginal VFR conditions - some restrictions for visual flying.

TEMPO 14:00Z - 16:00Z
MVFR
Visibility
4SM
Weather
Light Thunderstorm Rain
Clouds
OVC015CB
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Visibility will be good at 4SM. Weather conditions: Light Thunderstorm Rain. Overcast skies at 1500 feet. Marginal VFR conditions - some restrictions for visual flying.

FM101600 16:00Z - 22:00Z
MVFR
Wind
260° at 9 kt
Visibility
6SM
Weather
Light Showers Rain
Clouds
BKN020
📖 Plain English Explanation:

Winds from the West (260°) at 9 kt. Visibility will be excellent at 6SM. Weather conditions: Light Showers Rain. Broken clouds at 2000 feet. Marginal VFR conditions - some restrictions for visual flying.

PROB30 16:00Z - 18:00Z
MVFR
Visibility
4SM
Weather
Light Thunderstorm Rain
Clouds
OVC015CB
📖 Plain English Explanation:

There is a 30% probability of: Visibility will be good at 4SM. Weather conditions: Light Thunderstorm Rain. Overcast skies at 1500 feet. Marginal VFR conditions - some restrictions for visual flying.

FM101800 18:00Z - 00:00Z
MVFR
Wind
240° at 10 kt
Gusts: 18 kt
Visibility
>6SM
Clouds
OVC025
📖 Plain English Explanation:

Winds from the West-Southwest (240°) at 10 kt. Gusts up to 18 kt are expected. Visibility will be excellent at more than 6SM. Overcast skies at 2500 feet. Marginal VFR conditions - some restrictions for visual flying.

PROB30 18:00Z - 20:00Z
MVFR
Visibility
4SM
Weather
Light Thunderstorm Rain
Clouds
OVC015CB
📖 Plain English Explanation:

There is a 30% probability of: Visibility will be good at 4SM. Weather conditions: Light Thunderstorm Rain. Overcast skies at 1500 feet. Marginal VFR conditions - some restrictions for visual flying.

FM110900 09:00Z - 15:00Z
VFR
Wind
240° at 7 kt
Visibility
>6SM
Clouds
BKN030
📖 Plain English Explanation:

Winds from the West-Southwest (240°) at 7 kt. Visibility will be excellent at more than 6SM. Broken clouds at 3000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

PROB30 09:00Z - 11:00Z
MVFR
Visibility
4SM
Weather
Light Showers Rain
Clouds
OVC015
📖 Plain English Explanation:

There is a 30% probability of: Visibility will be good at 4SM. Weather conditions: Light Showers Rain. Overcast skies at 1500 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.