Davison Army Air Field

KDAA / DAA

Fort Belvoir, US

Current TAF Forecast

Raw TAF:
TAF COR KDAA 041515Z 0415/0519 VRB03KT 9000 BR SCT007 OVC050 QNH3019INS TEMPO 0415/0418 BKN007 BECMG 0417/0418 05003KT 8000 -SHRA BKN010 OVC050 QNH3019INS BECMG 0500/0501 09003KT 6000 -RA BR BKN005 OVC010 QNH3017INS BECMG 0505/0506 10003KT 3200 -DZ BR OVC005 QNH3015INS BECMG 0510/0511 10003KT 0800 FG OVC002 QNH3016INS BECMG 0514/0515 11003KT 3200 BR OVC005 QNH3016INS BECMG 0516/0517 10003KT 4800 BR OVC007 QNH3012INS TX11/0420Z TN06/0510Z

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
Thu
17:00Z
+17h
Wind Dir
VRB
90°
E
90°
E
90°
E
90°
E
90°
E
100°
E
100°
E
100°
E
100°
E
100°
E
100°
E
100°
E
100°
E
100°
E
110°
E
110°
E
100°
E
100°
E
Wind Speed
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
Visibility
9 km
6 km
6 km
6 km
6 km
6 km
3.2 km
3.2 km
3.2 km
3.2 km
3.2 km
0.8 km
0.8 km
0.8 km
0.8 km
3.2 km
3.2 km
4.8 km
4.8 km
Weather
Mist
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 Drizzle, Mist
-DZ BR
Light Drizzle, Mist
-DZ BR
Light Drizzle, Mist
-DZ BR
Light Drizzle, Mist
-DZ BR
Light Drizzle, Mist
-DZ BR
Fog
FG
Fog
FG
Fog
FG
Fog
FG
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Clouds
SCT007
OVC050
BKN005
OVC010
BKN005
OVC010
BKN005
OVC010
BKN005
OVC010
BKN005
OVC010
OVC005
OVC005
OVC005
OVC005
OVC005
OVC002
OVC002
OVC002
OVC002
OVC005
OVC005
OVC007
OVC007
Ceiling
5,000 ft
AGL
500 ft
AGL
500 ft
AGL
500 ft
AGL
500 ft
AGL
500 ft
AGL
500 ft
AGL
500 ft
AGL
500 ft
AGL
500 ft
AGL
500 ft
AGL
200 ft
AGL
200 ft
AGL
200 ft
AGL
200 ft
AGL
500 ft
AGL
500 ft
AGL
700 ft
AGL
700 ft
AGL
Flight Rules VFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR LIFR LIFR LIFR LIFR IFR IFR IFR IFR
Day/Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 06:22Z
🌙
Night
🌅 06:22Z
🌅
Dawn
🌅 06:22Z
☀️
Day
🌅 06:22Z
☀️
Day
🌅 06:22Z
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 17:37Z
☀️
Day
🌇 17:37Z
☀️
Day
🌇 17:37Z
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 3 kt
Visibility
9 km
Weather
Mist
Clouds
SCT007 OVC050
📖 Plain English Explanation:

This is the base forecast condition. Winds will be variable in direction at 3 kt. Visibility will be good at 9 km. Weather conditions: Mist. Scattered clouds at 700 feet, Overcast skies at 5000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

TEMPO 15:00Z - 18:00Z
IFR
Clouds
BKN007
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Broken clouds at 700 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

BECMG 17:00Z - 18:00Z
IFR
Wind
50° at 3 kt
Visibility
8 km
Weather
Light Showers Rain
Clouds
BKN010 OVC050
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the Northeast (50°) at 3 kt. Visibility will be good at 8 km. Weather conditions: Light Showers Rain. Broken clouds at 1000 feet, Overcast skies at 5000 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

BECMG 00:00Z - 01:00Z
IFR
Wind
90° at 3 kt
Visibility
6 km
Weather
Light Rain, Mist
Clouds
BKN005 OVC010
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the East (90°) at 3 kt. Visibility will be good at 6 km. Weather conditions: Light Rain, Mist. Broken clouds at 500 feet, Overcast skies at 1000 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

BECMG 05:00Z - 06:00Z
IFR
Wind
100° at 3 kt
Visibility
3.2 km
Weather
Light Drizzle, Mist
Clouds
OVC005
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the East (100°) at 3 kt. Visibility will be moderate at 3.2 km. Weather conditions: Light Drizzle, Mist. Overcast skies at 500 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

BECMG 10:00Z - 11:00Z
LIFR
Wind
100° at 3 kt
Visibility
0.8 km
Weather
Fog
Clouds
OVC002
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the East (100°) at 3 kt. Visibility will be poor at 0.8 km. Weather conditions: Fog. Overcast skies at 200 feet. Low IFR conditions - challenging even for instrument operations.

BECMG 14:00Z - 15:00Z
IFR
Wind
110° at 3 kt
Visibility
3.2 km
Weather
Mist
Clouds
OVC005
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the East-Southeast (110°) at 3 kt. Visibility will be moderate at 3.2 km. Weather conditions: Mist. Overcast skies at 500 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

BECMG 16:00Z - 17:00Z
IFR
Wind
100° at 3 kt
Visibility
4.8 km
Weather
Mist
Clouds
OVC007
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the East (100°) at 3 kt. Visibility will be moderate at 4.8 km. Weather conditions: Mist. Overcast skies at 700 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.