Lemhi County Airport

KSMN / SMN

Salmon, US

Current TAF Forecast

Raw TAF:
TAF KSMN 230520Z 2306/2406 VRB05KT 6SM -RA BKN035 OVC050 FM230900 19006KT P6SM VCSH BKN027 PROB30 2317/2320 2SM -RASN BR BKN035 FM232000 35012G20KT P6SM VCSH BKN060

Detailed TAF Table

Parameter
Thu
09:00Z
+-1h
Thu
10:00Z
+0h
Thu
11:00Z
+1h
Thu
12:00Z
+2h
Thu
13:00Z
+3h
Thu
14:00Z
+4h
Thu
15:00Z
+5h
Thu
16:00Z
+6h
Thu
17:00Z
+7h
Thu
18:00Z
+8h
Thu
19:00Z
+9h
Thu
20:00Z
+10h
Thu
21:00Z
+11h
Thu
22:00Z
+12h
Thu
23:00Z
+13h
Fri
00:00Z
+14h
Fri
01:00Z
+15h
Fri
02:00Z
+16h
Fri
03:00Z
+17h
Fri
04:00Z
+18h
Wind Dir
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
350°
N
350°
N
350°
N
350°
N
350°
N
350°
N
VRB
VRB
VRB
Wind Speed
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
12 kt
G20 kt
12 kt
G20 kt
12 kt
G20 kt
12 kt
G20 kt
12 kt
G20 kt
12 kt
G20 kt
5 kt
5 kt
5 kt
Visibility
6SM
6SM
6SM
6SM
6SM
6SM
6SM
6SM
2SM
2SM
2SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
6SM
6SM
6SM
Weather
Light Rain
-RA
Light Rain
-RA
Light Rain
-RA
Light Rain
-RA
Light Rain
-RA
Light Rain
-RA
Light Rain
-RA
Light Rain
-RA
Light RASN, Mist
-RASN BR
30%
Light RASN, Mist
-RASN BR
30%
Light RASN, Mist
-RASN BR
30%
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Light Rain
-RA
Light Rain
-RA
Light Rain
-RA
Clouds
BKN035
OVC050
BKN035
OVC050
BKN035
OVC050
BKN035
OVC050
BKN035
OVC050
BKN035
OVC050
BKN035
OVC050
BKN035
OVC050
BKN035
BKN035
BKN035
BKN060
BKN060
BKN060
BKN060
BKN060
BKN060
BKN035
OVC050
BKN035
OVC050
BKN035
OVC050
Ceiling
3,500 ft
AGL
3,500 ft
AGL
3,500 ft
AGL
3,500 ft
AGL
3,500 ft
AGL
3,500 ft
AGL
3,500 ft
AGL
3,500 ft
AGL
3,500 ft
AGL
3,500 ft
AGL
3,500 ft
AGL
6,000 ft
AGL
6,000 ft
AGL
6,000 ft
AGL
6,000 ft
AGL
6,000 ft
AGL
6,000 ft
AGL
3,500 ft
AGL
3,500 ft
AGL
3,500 ft
AGL
Flight Rules VFR VFR VFR VFR VFR VFR VFR VFR IFR IFR IFR VFR VFR VFR VFR VFR VFR VFR VFR VFR
Day/Night
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 18:43Z
☀️
Day
🌇 18:43Z
☀️
Day
🌇 18:43Z
🌇
Dusk
🌇 18:43Z
🌙
Night
🌇 18:43Z
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 05:15Z
🌙
Night
🌅 05:15Z
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
VRB° at 5 kt
Visibility
6SM
Weather
Light Rain
Clouds
BKN035 OVC050
📖 Plain English Explanation:

This is the base forecast condition. Winds will be variable in direction at 5 kt. Visibility will be excellent at 6SM. Weather conditions: Light Rain. Broken clouds at 3500 feet, Overcast skies at 5000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM230900 09:00Z - 15:00Z
MVFR
Wind
190° at 6 kt
Visibility
>6SM
Clouds
BKN027
📖 Plain English Explanation:

Winds from the South (190°) at 6 kt. Visibility will be excellent at more than 6SM. Broken clouds at 2700 feet. Marginal VFR conditions - some restrictions for visual flying.

PROB30 17:00Z - 20:00Z
IFR
Visibility
2SM
Weather
Light RASN, Mist
Clouds
BKN035
📖 Plain English Explanation:

There is a 30% probability of: Visibility will be moderate at 2SM. Weather conditions: Light RASN, Mist. Broken clouds at 3500 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

FM232000 20:00Z - 02:00Z
VFR
Wind
350° at 12 kt
Gusts: 20 kt
Visibility
>6SM
Clouds
BKN060
📖 Plain English Explanation:

Winds from the North (350°) at 12 kt. Gusts up to 20 kt are expected. Visibility will be excellent at more than 6SM. Broken clouds at 6000 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.