Grissom Air Reserve Base

KGUS / GUS

Peru, US

Current TAF Forecast

Raw TAF:
TAF KGUS 151300Z 1513/1619 19009KT 9999 BKN100 OVC140 QNH3002INS TEMPO 1514/1517 9000 -SHRA BKN045 BKN100 OVC140 BECMG 1516/1517 18010G22KT 9999 SCT040 OVC055 QNH3000INS BECMG 1600/1601 18009KT 9999 SCT049 QNH2996INS BECMG 1609/1610 19010G25KT 9999 -TSRA FEW030CB BKN040 BKN110 520006 QNH2986INS BECMG 1614/1615 20010G22KT 9999 -SHRA FEW015 BKN025 OVC030 520006 QNH2988INS BECMG 1617/1618 23009KT 9999 -SHRA FEW010 OVC020 QNH2990INS TX20/1521Z TN14/1513Z

Detailed TAF Table

Parameter
Fri
14:00Z
+-1h
Fri
15:00Z
+0h
Fri
16:00Z
+1h
Fri
17:00Z
+2h
Fri
18:00Z
+3h
Fri
19:00Z
+4h
Fri
20:00Z
+5h
Fri
21:00Z
+6h
Fri
22:00Z
+7h
Fri
23:00Z
+8h
Sat
00:00Z
+9h
Sat
01:00Z
+10h
Sat
02:00Z
+11h
Sat
03:00Z
+12h
Sat
04:00Z
+13h
Sat
05:00Z
+14h
Sat
06:00Z
+15h
Sat
07:00Z
+16h
Sat
08:00Z
+17h
Sat
09:00Z
+18h
Sat
10:00Z
+19h
Sat
11:00Z
+20h
Sat
12:00Z
+21h
Sat
13:00Z
+22h
Sat
14:00Z
+23h
Sat
15:00Z
+24h
Sat
16:00Z
+25h
Sat
17:00Z
+26h
Wind Dir
190°
S
190°
S
180°
S
180°
S
180°
S
180°
S
180°
S
180°
S
180°
S
180°
S
180°
S
180°
S
180°
S
180°
S
180°
S
180°
S
180°
S
180°
S
180°
S
190°
S
190°
S
190°
S
190°
S
190°
S
200°
S
200°
S
200°
S
230°
SW
Wind Speed
9 kt
9 kt
10 kt
G22 kt
10 kt
G22 kt
10 kt
G22 kt
10 kt
G22 kt
10 kt
G22 kt
10 kt
G22 kt
10 kt
G22 kt
10 kt
G22 kt
9 kt
G22 kt
9 kt
G22 kt
9 kt
G22 kt
9 kt
G22 kt
9 kt
G22 kt
9 kt
G22 kt
9 kt
G22 kt
9 kt
G22 kt
9 kt
G22 kt
10 kt
G25 kt
10 kt
G25 kt
10 kt
G25 kt
10 kt
G25 kt
10 kt
G25 kt
10 kt
G22 kt
10 kt
G22 kt
10 kt
G22 kt
9 kt
G22 kt
Visibility
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Light Thunderstorm Rain
-TSRA
Light Thunderstorm Rain
-TSRA
Light Thunderstorm Rain
-TSRA
Light Thunderstorm Rain
-TSRA
Light Thunderstorm Rain
-TSRA
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Clouds
BKN100
OVC140
BKN100
OVC140
SCT040
OVC055
SCT040
OVC055
SCT040
OVC055
SCT040
OVC055
SCT040
OVC055
SCT040
OVC055
SCT040
OVC055
SCT040
OVC055
SCT049
SCT049
SCT049
SCT049
SCT049
SCT049
SCT049
SCT049
SCT049
FEW030CB
BKN040
FEW030CB
BKN040
FEW030CB
BKN040
FEW030CB
BKN040
FEW030CB
BKN040
FEW015
BKN025
FEW015
BKN025
FEW015
BKN025
FEW010
OVC020
Ceiling
10,000 ft
AGL
10,000 ft
AGL
5,500 ft
AGL
5,500 ft
AGL
5,500 ft
AGL
5,500 ft
AGL
5,500 ft
AGL
5,500 ft
AGL
5,500 ft
AGL
5,500 ft
AGL
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
4,000 ft
AGL
4,000 ft
AGL
4,000 ft
AGL
4,000 ft
AGL
4,000 ft
AGL
2,500 ft
AGL
2,500 ft
AGL
2,500 ft
AGL
2,000 ft
AGL
Flight Rules VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR
Day/Night
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 19:01Z
☀️
Day
🌇 19:01Z
☀️
Day
🌇 19:01Z
🌙
Night
🌇 19:01Z
🌙
Night
🌇 19:01Z
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 04:57Z
🌙
Night
🌅 04:57Z
🌙
Night
🌅 04:57Z
☀️
Day
🌅 04:57Z
☀️
Day
🌅 04:57Z
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 19:02Z
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
190° at 9 kt
Visibility
10+ km
Clouds
BKN100 OVC140
📖 Plain English Explanation:

This is the base forecast condition. Winds from the South (190°) at 9 kt. Visibility will be excellent at 10+ km. Broken clouds at 10000 feet, Overcast skies at 14000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

TEMPO 14:00Z - 17:00Z
VFR
Visibility
9 km
Weather
Light Showers Rain
Clouds
BKN045 BKN100 OVC140
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Visibility will be good at 9 km. Weather conditions: Light Showers Rain. Broken clouds at 4500 feet, Broken clouds at 10000 feet, Overcast skies at 14000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

BECMG 16:00Z - 17:00Z
VFR
Wind
180° at 10 kt
Gusts: 22 kt
Visibility
10+ km
Clouds
SCT040 OVC055
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the South (180°) at 10 kt. Gusts up to 22 kt are expected. Visibility will be excellent at 10+ km. Scattered clouds at 4000 feet, Overcast skies at 5500 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

BECMG 00:00Z - 01:00Z
VFR
Wind
180° at 9 kt
Visibility
10+ km
Clouds
SCT049
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the South (180°) at 9 kt. Visibility will be excellent at 10+ km. Scattered clouds at 4900 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

BECMG 09:00Z - 10:00Z
MVFR
Wind
190° at 10 kt
Gusts: 25 kt
Visibility
10+ km
Weather
Light Thunderstorm Rain
Clouds
FEW030CB BKN040 BKN110
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the South (190°) at 10 kt. Gusts up to 25 kt are expected. Visibility will be excellent at 10+ km. Weather conditions: Light Thunderstorm Rain. Few clouds at 3000 feet, Broken clouds at 4000 feet, Broken clouds at 11000 feet. Marginal VFR conditions - some restrictions for visual flying.

BECMG 14:00Z - 15:00Z
MVFR
Wind
200° at 10 kt
Gusts: 22 kt
Visibility
10+ km
Weather
Light Showers Rain
Clouds
FEW015 BKN025 OVC030
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the South-Southwest (200°) at 10 kt. Gusts up to 22 kt are expected. Visibility will be excellent at 10+ km. Weather conditions: Light Showers Rain. Few clouds at 1500 feet, Broken clouds at 2500 feet, Overcast skies at 3000 feet. Marginal VFR conditions - some restrictions for visual flying.

BECMG 17:00Z - 18:00Z
MVFR
Wind
230° at 9 kt
Visibility
10+ km
Weather
Light Showers Rain
Clouds
FEW010 OVC020
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the Southwest (230°) at 9 kt. Visibility will be excellent at 10+ km. Weather conditions: Light Showers Rain. Few clouds at 1000 feet, Overcast skies at 2000 feet. Marginal VFR conditions - some restrictions for visual flying.

📚 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.