Central Illinois Regional Airport at Bloomington-Normal

KBMI / BMI

Bloomington/Normal, US

Current TAF Forecast

Raw TAF:
TAF KBMI 042135Z 0422/0518 09007KT 1SM -SHRA FG OVC002 FM050200 09005KT 1/2SM FG VCSH OVC002 FM051100 10005KT 1SM -SHRA BR OVC002 FM051600 29007KT 4SM BR OVC005

Detailed TAF Table

Parameter
Wed
22:00Z
+-1h
Wed
23:00Z
+0h
Thu
00:00Z
+1h
Thu
01:00Z
+2h
Thu
02:00Z
+3h
Thu
03:00Z
+4h
Thu
04:00Z
+5h
Thu
05:00Z
+6h
Thu
06:00Z
+7h
Thu
07:00Z
+8h
Thu
08:00Z
+9h
Thu
09:00Z
+10h
Thu
10:00Z
+11h
Thu
11:00Z
+12h
Thu
12:00Z
+13h
Thu
13:00Z
+14h
Thu
14:00Z
+15h
Thu
15:00Z
+16h
Thu
16:00Z
+17h
Wind Dir
90°
E
90°
E
90°
E
90°
E
90°
E
90°
E
90°
E
90°
E
90°
E
90°
E
90°
E
90°
E
90°
E
100°
E
100°
E
100°
E
100°
E
100°
E
290°
W
Wind Speed
7 kt
7 kt
7 kt
7 kt
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
7 kt
7 kt
7 kt
5 kt
5 kt
5 kt
5 kt
5 kt
7 kt
Visibility
1SM
1SM
1SM
1SM
1/2SM
1/2SM
1/2SM
1/2SM
1/2SM
1/2SM
1SM
1SM
1SM
1SM
1SM
1SM
1SM
1SM
4SM
Weather
Light Showers Rain, Fog
-SHRA FG
Light Showers Rain, Fog
-SHRA FG
Light Showers Rain, Fog
-SHRA FG
Light Showers Rain, Fog
-SHRA FG
Fog
FG
Fog
FG
Fog
FG
Fog
FG
Fog
FG
Fog
FG
Light Showers Rain, Fog
-SHRA FG
Light Showers Rain, Fog
-SHRA FG
Light Showers Rain, Fog
-SHRA FG
Light Showers Rain, Mist
-SHRA BR
Light Showers Rain, Mist
-SHRA BR
Light Showers Rain, Mist
-SHRA BR
Light Showers Rain, Mist
-SHRA BR
Light Showers Rain, Mist
-SHRA BR
Mist
BR
Clouds
OVC002
OVC002
OVC002
OVC002
OVC002
OVC002
OVC002
OVC002
OVC002
OVC002
OVC002
OVC002
OVC002
OVC002
OVC002
OVC002
OVC002
OVC002
OVC005
Ceiling
200 ft
AGL
200 ft
AGL
200 ft
AGL
200 ft
AGL
200 ft
AGL
200 ft
AGL
200 ft
AGL
200 ft
AGL
200 ft
AGL
200 ft
AGL
200 ft
AGL
200 ft
AGL
200 ft
AGL
200 ft
AGL
200 ft
AGL
200 ft
AGL
200 ft
AGL
200 ft
AGL
500 ft
AGL
Flight Rules LIFR LIFR LIFR LIFR LIFR LIFR LIFR LIFR LIFR LIFR LIFR LIFR LIFR LIFR LIFR LIFR LIFR LIFR IFR
Day/Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 06:23Z
🌙
Night
🌅 06:23Z
🌅
Dawn
🌅 06:23Z
☀️
Day
🌅 06:23Z
☀️
Day
🌅 06:23Z
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 17:36Z
☀️
Day
🌇 17:36Z
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
LIFR
Wind
90° at 7 kt
Visibility
1SM
Weather
Light Showers Rain, Fog
Clouds
OVC002
📖 Plain English Explanation:

This is the base forecast condition. Winds from the East (90°) at 7 kt. Visibility will be moderate at 1SM. Weather conditions: Light Showers Rain, Fog. Overcast skies at 200 feet. Low IFR conditions - challenging even for instrument operations.

FM050200 02:00Z - 08:00Z
LIFR
Wind
90° at 5 kt
Visibility
1/2SM
Weather
Fog
Clouds
OVC002
📖 Plain English Explanation:

Winds from the East (90°) at 5 kt. Visibility will be moderate at 1/2SM. Weather conditions: Fog. Overcast skies at 200 feet. Low IFR conditions - challenging even for instrument operations.

FM051100 11:00Z - 17:00Z
LIFR
Wind
100° at 5 kt
Visibility
1SM
Weather
Light Showers Rain, Mist
Clouds
OVC002
📖 Plain English Explanation:

Winds from the East (100°) at 5 kt. Visibility will be moderate at 1SM. Weather conditions: Light Showers Rain, Mist. Overcast skies at 200 feet. Low IFR conditions - challenging even for instrument operations.

FM051600 16:00Z - 22:00Z
IFR
Wind
290° at 7 kt
Visibility
4SM
Weather
Mist
Clouds
OVC005
📖 Plain English Explanation:

Winds from the West-Northwest (290°) at 7 kt. Visibility will be good at 4SM. Weather conditions: Mist. Overcast skies at 500 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.