Frederick Douglass Greater Rochester International Airport

KROC / ROC

Rochester, US

Current TAF Forecast

Raw TAF:
TAF KROC 041727Z 0418/0518 VRB05KT P6SM FEW250 FM050400 00000KT 4SM BR BKN040 FM050900 00000KT 1 1/2SM BR BKN007 FM051200 06004KT 4SM BR BKN007 FM051400 06006KT 5SM BR BKN012 FM051500 06007KT P6SM BKN007

Detailed TAF Table

Parameter
Wed
19:00Z
+-1h
Wed
20:00Z
+0h
Wed
21:00Z
+1h
Wed
22:00Z
+2h
Wed
23:00Z
+3h
Thu
00:00Z
+4h
Thu
01:00Z
+5h
Thu
02:00Z
+6h
Thu
03:00Z
+7h
Thu
04:00Z
+8h
Thu
05:00Z
+9h
Thu
06:00Z
+10h
Thu
07:00Z
+11h
Thu
08:00Z
+12h
Thu
09:00Z
+13h
Thu
10:00Z
+14h
Thu
11:00Z
+15h
Thu
12:00Z
+16h
Thu
13:00Z
+17h
Thu
14:00Z
+18h
Thu
15:00Z
+19h
Thu
16:00Z
+20h
Wind Dir
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
-- -- -- -- -- -- -- --
60°
NE
60°
NE
60°
NE
60°
NE
60°
NE
Wind Speed
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
-- -- -- -- -- -- -- --
4 kt
4 kt
6 kt
7 kt
7 kt
Visibility
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
4SM
4SM
4SM
4SM
4SM
1/2SM
1/2SM
1/2SM
4SM
4SM
5SM
>6SM
>6SM
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
☀️ Clear
☀️ Clear
Clouds
FEW250
FEW250
FEW250
FEW250
FEW250
FEW250
FEW250
FEW250
FEW250
BKN040
BKN040
BKN040
BKN040
BKN040
BKN007
BKN007
BKN007
BKN007
BKN007
BKN012
BKN007
BKN007
Ceiling
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
4,000 ft
AGL
4,000 ft
AGL
4,000 ft
AGL
4,000 ft
AGL
4,000 ft
AGL
700 ft
AGL
700 ft
AGL
700 ft
AGL
700 ft
AGL
700 ft
AGL
1,200 ft
AGL
700 ft
AGL
700 ft
AGL
Flight Rules VFR VFR VFR VFR VFR VFR VFR VFR VFR MVFR MVFR MVFR MVFR MVFR IFR IFR IFR IFR IFR IFR IFR IFR
Day/Night
🌙
Night
🌇 17:33Z
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 06:25Z
🌙
Night
🌅 06:25Z
🌅
Dawn
🌅 06:25Z
☀️
Day
🌅 06:25Z
☀️
Day
🌅 06:25Z
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 17:35Z
☀️
Day
🌇 17:35Z
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 5 kt
Visibility
>6SM
Clouds
FEW250
📖 Plain English Explanation:

This is the base forecast condition. Winds will be variable in direction at 5 kt. Visibility will be excellent at more than 6SM. Few clouds at 25000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM050400 04:00Z - 10:00Z
MVFR
Wind
0° at 0 kt
Visibility
4SM
Weather
Mist
Clouds
BKN040
📖 Plain English Explanation:

Winds from the North (0°) at 0 kt. Visibility will be good at 4SM. Weather conditions: Mist. Broken clouds at 4000 feet. Marginal VFR conditions - some restrictions for visual flying.

FM050900 09:00Z - 15:00Z
IFR
Wind
0° at 0 kt
Visibility
1/2SM
Weather
Mist
Clouds
BKN007
📖 Plain English Explanation:

Winds from the North (0°) at 0 kt. Visibility will be moderate at 1/2SM. Weather conditions: Mist. Broken clouds at 700 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

FM051200 12:00Z - 18:00Z
IFR
Wind
60° at 4 kt
Visibility
4SM
Weather
Mist
Clouds
BKN007
📖 Plain English Explanation:

Winds from the East-Northeast (60°) at 4 kt. Visibility will be good at 4SM. Weather conditions: Mist. Broken clouds at 700 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

FM051400 14:00Z - 20:00Z
IFR
Wind
60° at 6 kt
Visibility
5SM
Weather
Mist
Clouds
BKN012
📖 Plain English Explanation:

Winds from the East-Northeast (60°) at 6 kt. Visibility will be good at 5SM. Weather conditions: Mist. Broken clouds at 1200 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

FM051500 15:00Z - 21:00Z
IFR
Wind
60° at 7 kt
Visibility
>6SM
Clouds
BKN007
📖 Plain English Explanation:

Winds from the East-Northeast (60°) at 7 kt. Visibility will be excellent at more than 6SM. Broken clouds at 700 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.