Lemhi County Airport

KSMN / SMN

Salmon, US

Current TAF Forecast

Raw TAF:
TAF KSMN 050520Z 0506/0606 21006KT 4SM -RA BR BKN025 OVC030 FM050800 VRB04KT 5SM -RASN BR OVC025 PROB30 0508/0512 4SM -RASN BKN025 FM051300 34006KT 6SM -RASN BKN035

Detailed TAF Table

Parameter
Thu
07:00Z
+-1h
Thu
08:00Z
+0h
Thu
09:00Z
+1h
Thu
10:00Z
+2h
Thu
11:00Z
+3h
Thu
12:00Z
+4h
Thu
13:00Z
+5h
Thu
14:00Z
+6h
Thu
15:00Z
+7h
Thu
16:00Z
+8h
Thu
17:00Z
+9h
Thu
18:00Z
+10h
Thu
19:00Z
+11h
Thu
20:00Z
+12h
Thu
21:00Z
+13h
Thu
22:00Z
+14h
Thu
23:00Z
+15h
Fri
00:00Z
+16h
Fri
01:00Z
+17h
Fri
02:00Z
+18h
Fri
03:00Z
+19h
Fri
04:00Z
+20h
Wind Dir
210°
SW
210°
SW
210°
SW
210°
SW
210°
SW
VRB
340°
N
340°
N
340°
N
340°
N
340°
N
340°
N
210°
SW
210°
SW
210°
SW
210°
SW
210°
SW
210°
SW
210°
SW
210°
SW
210°
SW
210°
SW
Wind Speed
6 kt
6 kt
6 kt
6 kt
6 kt
4 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
Visibility
4SM
4SM
4SM
4SM
4SM
5SM
6SM
6SM
6SM
6SM
6SM
6SM
4SM
4SM
4SM
4SM
4SM
4SM
4SM
4SM
4SM
4SM
Weather
Light Rain, Mist
-RA BR
Light RASN
-RASN
30%
Light RASN
-RASN
30%
Light RASN
-RASN
30%
Light RASN
-RASN
30%
Light RASN, Mist
-RASN BR
Light RASN
-RASN
Light RASN
-RASN
Light RASN
-RASN
Light RASN
-RASN
Light RASN
-RASN
Light RASN
-RASN
Light Rain, Mist
-RA BR
Light Rain, Mist
-RA BR
Light Rain, Mist
-RA BR
Light Rain, Mist
-RA BR
Light Rain, Mist
-RA BR
Light Rain, Mist
-RA BR
Light Rain, Mist
-RA BR
Light Rain, Mist
-RA BR
Light Rain, Mist
-RA BR
Light Rain, Mist
-RA BR
Clouds
BKN025
OVC030
BKN025
BKN025
BKN025
BKN025
OVC025
BKN035
BKN035
BKN035
BKN035
BKN035
BKN035
BKN025
OVC030
BKN025
OVC030
BKN025
OVC030
BKN025
OVC030
BKN025
OVC030
BKN025
OVC030
BKN025
OVC030
BKN025
OVC030
BKN025
OVC030
BKN025
OVC030
Ceiling
2,500 ft
AGL
2,500 ft
AGL
2,500 ft
AGL
2,500 ft
AGL
2,500 ft
AGL
2,500 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
2,500 ft
AGL
2,500 ft
AGL
2,500 ft
AGL
2,500 ft
AGL
2,500 ft
AGL
2,500 ft
AGL
2,500 ft
AGL
2,500 ft
AGL
2,500 ft
AGL
2,500 ft
AGL
Flight Rules MVFR MVFR MVFR MVFR MVFR MVFR VFR VFR VFR VFR VFR VFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR
Day/Night
☀️
Day
🌅 06:25Z
☀️
Day
🌅 06:25Z
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 17:34Z
☀️
Day
🌇 17:34Z
☀️
Day
🌇 17:34Z
🌇
Dusk
🌇 17:34Z
🌙
Night
🌇 17:34Z
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 06:24Z
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
210° at 6 kt
Visibility
4SM
Weather
Light Rain, Mist
Clouds
BKN025 OVC030
📖 Plain English Explanation:

This is the base forecast condition. Winds from the South-Southwest (210°) at 6 kt. Visibility will be good at 4SM. Weather conditions: Light Rain, Mist. Broken clouds at 2500 feet, Overcast skies at 3000 feet. Marginal VFR conditions - some restrictions for visual flying.

FM050800 08:00Z - 14:00Z
MVFR
Wind
VRB° at 4 kt
Visibility
5SM
Weather
Light RASN, Mist
Clouds
OVC025
📖 Plain English Explanation:

Winds will be variable in direction at 4 kt. Visibility will be good at 5SM. Weather conditions: Light RASN, Mist. Overcast skies at 2500 feet. Marginal VFR conditions - some restrictions for visual flying.

PROB30 08:00Z - 12:00Z
MVFR
Visibility
4SM
Weather
Light RASN
Clouds
BKN025
📖 Plain English Explanation:

There is a 30% probability of: Visibility will be good at 4SM. Weather conditions: Light RASN. Broken clouds at 2500 feet. Marginal VFR conditions - some restrictions for visual flying.

FM051300 13:00Z - 19:00Z
VFR
Wind
340° at 6 kt
Visibility
6SM
Weather
Light RASN
Clouds
BKN035
📖 Plain English Explanation:

Winds from the North-Northwest (340°) at 6 kt. Visibility will be excellent at 6SM. Weather conditions: Light RASN. Broken clouds at 3500 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.