Walla Walla Regional Airport

KALW / ALW

Walla Walla, US

Current TAF Forecast

Raw TAF:
TAF KALW 041727Z 0418/0518 14007KT 6SM -SHRA BKN035 OVC050 FM042300 21012G17KT P6SM -RA OVC050 FM050500 22012G17KT P6SM -RA OVC050 FM050800 22012KT P6SM OVC050

Detailed TAF Table

Parameter
Wed
23:00Z
+-1h
Thu
00:00Z
+0h
Thu
01:00Z
+1h
Thu
02:00Z
+2h
Thu
03:00Z
+3h
Thu
04:00Z
+4h
Thu
05:00Z
+5h
Thu
06:00Z
+6h
Thu
07:00Z
+7h
Thu
08:00Z
+8h
Thu
09:00Z
+9h
Thu
10:00Z
+10h
Thu
11:00Z
+11h
Thu
12:00Z
+12h
Thu
13:00Z
+13h
Thu
14:00Z
+14h
Thu
15:00Z
+15h
Thu
16:00Z
+16h
Wind Dir
140°
SE
140°
SE
140°
SE
140°
SE
140°
SE
140°
SE
220°
SW
220°
SW
220°
SW
220°
SW
220°
SW
220°
SW
220°
SW
220°
SW
220°
SW
140°
SE
140°
SE
140°
SE
Wind Speed
7 kt
7 kt
7 kt
7 kt
7 kt
7 kt
12 kt
G17 kt
12 kt
G17 kt
12 kt
G17 kt
12 kt
G17 kt
12 kt
G17 kt
12 kt
G17 kt
12 kt
12 kt
12 kt
7 kt
7 kt
7 kt
Visibility
6SM
6SM
6SM
6SM
6SM
6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
6SM
6SM
6SM
Weather
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Light Rain
-RA
Light Rain
-RA
Light Rain
-RA
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Clouds
BKN035
OVC050
BKN035
OVC050
BKN035
OVC050
BKN035
OVC050
BKN035
OVC050
BKN035
OVC050
OVC050
OVC050
OVC050
OVC050
OVC050
OVC050
OVC050
OVC050
OVC050
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
5,000 ft
AGL
5,000 ft
AGL
5,000 ft
AGL
5,000 ft
AGL
5,000 ft
AGL
5,000 ft
AGL
5,000 ft
AGL
5,000 ft
AGL
5,000 ft
AGL
3,500 ft
AGL
3,500 ft
AGL
3,500 ft
AGL
Flight Rules VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR
Day/Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 06:26Z
🌙
Night
🌅 06:26Z
🌅
Dawn
🌅 06:26Z
☀️
Day
🌅 06:26Z
☀️
Day
🌅 06:26Z
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 17:33Z
☀️
Day
🌇 17:33Z
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
140° at 7 kt
Visibility
6SM
Weather
Light Showers Rain
Clouds
BKN035 OVC050
📖 Plain English Explanation:

This is the base forecast condition. Winds from the Southeast (140°) at 7 kt. Visibility will be excellent at 6SM. Weather conditions: Light Showers Rain. Broken clouds at 3500 feet, Overcast skies at 5000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM042300 23:00Z - 05:00Z
VFR
Wind
210° at 12 kt
Gusts: 17 kt
Visibility
>6SM
Weather
Light Rain
Clouds
OVC050
📖 Plain English Explanation:

Winds from the South-Southwest (210°) at 12 kt. Gusts up to 17 kt are expected. Visibility will be excellent at more than 6SM. Weather conditions: Light Rain. Overcast skies at 5000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM050500 05:00Z - 11:00Z
VFR
Wind
220° at 12 kt
Gusts: 17 kt
Visibility
>6SM
Weather
Light Rain
Clouds
OVC050
📖 Plain English Explanation:

Winds from the Southwest (220°) at 12 kt. Gusts up to 17 kt are expected. Visibility will be excellent at more than 6SM. Weather conditions: Light Rain. Overcast skies at 5000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM050800 08:00Z - 14:00Z
VFR
Wind
220° at 12 kt
Visibility
>6SM
Clouds
OVC050
📖 Plain English Explanation:

Winds from the Southwest (220°) at 12 kt. Visibility will be excellent at more than 6SM. Overcast skies 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.