Spirit of St Louis Airport

KSUS / SUS

St Louis, US

Current TAF Forecast

Raw TAF:
TAF KSUS 171546Z 1716/1812 28010G20KT 5SM -SN OVC045 TEMPO 1716/1717 1/2SM SN OVC015 FM171700 28015G23KT P6SM OVC050 FM180600 29008KT P6SM SCT050

Detailed TAF Table

Parameter
Sat
16:00Z
+-1h
Sat
17:00Z
+0h
Sat
18:00Z
+1h
Sat
19:00Z
+2h
Sat
20:00Z
+3h
Sat
21:00Z
+4h
Sat
22:00Z
+5h
Sat
23:00Z
+6h
Sun
00:00Z
+7h
Sun
01:00Z
+8h
Sun
02:00Z
+9h
Sun
03:00Z
+10h
Sun
04:00Z
+11h
Sun
05:00Z
+12h
Sun
06:00Z
+13h
Sun
07:00Z
+14h
Sun
08:00Z
+15h
Sun
09:00Z
+16h
Sun
10:00Z
+17h
Wind Dir
280°
W
280°
W
280°
W
280°
W
280°
W
280°
W
280°
W
280°
W
280°
W
280°
W
280°
W
280°
W
280°
W
280°
W
290°
W
290°
W
290°
W
290°
W
290°
W
Wind Speed
10kt
G20kt
15kt
G23kt
15kt
G23kt
15kt
G23kt
15kt
G23kt
15kt
G23kt
15kt
G23kt
10kt
G20kt
10kt
G20kt
10kt
G20kt
10kt
G20kt
10kt
G20kt
10kt
G20kt
10kt
G20kt
8kt
G20kt
8kt
G20kt
8kt
G20kt
8kt
G20kt
8kt
G20kt
Visibility
5SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
5SM
5SM
5SM
5SM
5SM
5SM
5SM
>6SM
>6SM
>6SM
>6SM
>6SM
Weather
Light Snow
-SN
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Light Snow
-SN
Light Snow
-SN
Light Snow
-SN
Light Snow
-SN
Light Snow
-SN
Light Snow
-SN
Light Snow
-SN
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Clouds
OVC045
OVC050
OVC050
OVC050
OVC050
OVC050
OVC050
OVC045
OVC045
OVC045
OVC045
OVC045
OVC045
OVC045
SCT050
SCT050
SCT050
SCT050
SCT050
Ceiling
4500ft
AGL
5000ft
AGL
5000ft
AGL
5000ft
AGL
5000ft
AGL
5000ft
AGL
5000ft
AGL
4500ft
AGL
4500ft
AGL
4500ft
AGL
4500ft
AGL
4500ft
AGL
4500ft
AGL
4500ft
AGL
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
Flight Rules MVFR VFR VFR VFR VFR VFR VFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR VFR VFR VFR VFR VFR
Day/Night
☀️
Day
🌇 16:52
🌇
Dusk
🌇 16:52
🌙
Night
🌇 16:52
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 07:06
🌙
Night
🌅 07:06
🌅
Dawn
🌅 07:06
☀️
Day
🌅 07:06
☀️
Day
🌅 07:06
☀️
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
280° at 10 kt
Gusts: 20 kt
Visibility
5SM
Weather
Light Snow
Clouds
OVC045
📖 Plain English Explanation:

This is the base forecast condition. Winds from the West (280°) at 10kt. Gusts up to 20kt are expected. Visibility will be good at 5SM. Weather conditions: Light Snow. Overcast skies at 4500 feet. Marginal VFR conditions - some restrictions for visual flying.

TEMPO 2026-02-17 16:00:00 - 2026-01-17 17:00:00
IFR
Visibility
1/2SM
Weather
Snow
Clouds
OVC015
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Visibility will be moderate at 1/2SM. Weather conditions: Snow. Overcast skies at 1500 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

FM171700 2026-01-17 17:00:00 - 2026-01-17 23:00:00
VFR
Wind
280° at 15 kt
Gusts: 23 kt
Visibility
>6SM
Clouds
OVC050
📖 Plain English Explanation:

Winds from the West (280°) at 15kt. Gusts up to 23kt are expected. Visibility will be excellent at more than 6SM. Overcast skies at 5000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM180600 2026-01-18 06:00:00 - 2026-01-18 12:00:00
VFR
Wind
290° at 8 kt
Visibility
>6SM
Clouds
SCT050
📖 Plain English Explanation:

Winds from the West-Northwest (290°) at 8kt. Visibility will be excellent at more than 6SM. Scattered clouds at 5000 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.