Grissom Air Reserve Base

KGUS / GUS

Peru, US

Current TAF Forecast

Raw TAF:
TAF KGUS 211300Z 2113/2219 22015G25KT 9999 BKN200 510005 QNH2998INS BECMG 2118/2119 23020G30KT 9999 FEW060 BKN200 510005 QNH2988INS BECMG 2123/2124 23012KT 9000 -SHRA BKN030 BKN080 QNH2987INS TEMPO 2200/2204 VRB10G15KT 6000 -TSRA BKN018CB OVC030 BECMG 2208/2209 23008KT 9999 NSW OVC015 QNH2988INS BECMG 2210/2211 VRB06KT 4800 BR OVC010 QNH2990INS BECMG 2214/2215 27008KT 9999 NSW OVC010 QNH2993INS TX24/2121Z TN01/2113Z

Detailed TAF Table

Parameter
Tue
17:00Z
+-1h
Tue
18:00Z
+0h
Tue
19:00Z
+1h
Tue
20:00Z
+2h
Tue
21:00Z
+3h
Tue
22:00Z
+4h
Tue
23:00Z
+5h
Wed
00:00Z
+6h
Wed
01:00Z
+7h
Wed
02:00Z
+8h
Wed
03:00Z
+9h
Wed
04:00Z
+10h
Wed
05:00Z
+11h
Wed
06:00Z
+12h
Wed
07:00Z
+13h
Wed
08:00Z
+14h
Wed
09:00Z
+15h
Wed
10:00Z
+16h
Wed
11:00Z
+17h
Wed
12:00Z
+18h
Wed
13:00Z
+19h
Wed
14:00Z
+20h
Wed
15:00Z
+21h
Wed
16:00Z
+22h
Wed
17:00Z
+23h
Wind Dir
220°
SW
230°
SW
230°
SW
230°
SW
230°
SW
230°
SW
230°
SW
VRB
VRB
VRB
VRB
230°
SW
230°
SW
230°
SW
230°
SW
230°
SW
230°
SW
VRB
VRB
VRB
VRB
270°
W
270°
W
270°
W
270°
W
Wind Speed
15 kt
G25 kt
20 kt
G30 kt
20 kt
G30 kt
20 kt
G30 kt
20 kt
G30 kt
20 kt
G30 kt
12 kt
G30 kt
10 kt
G15 kt
10 kt
G15 kt
10 kt
G15 kt
10 kt
G15 kt
12 kt
G30 kt
12 kt
G30 kt
12 kt
G30 kt
12 kt
G30 kt
8 kt
G30 kt
8 kt
G30 kt
6 kt
G30 kt
6 kt
G30 kt
6 kt
G30 kt
6 kt
G30 kt
8 kt
G30 kt
8 kt
G30 kt
8 kt
G30 kt
8 kt
G30 kt
Visibility
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
9 km
6 km
6 km
6 km
6 km
9 km
9 km
9 km
9 km
10+ km
10+ km
4.8 km
4.8 km
4.8 km
4.8 km
10+ km
10+ km
10+ km
10+ km
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Light Showers Rain
-SHRA
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
☀️ Clear
☀️ Clear
Mist
BR
Mist
BR
Mist
BR
Mist
BR
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Clouds
BKN200
FEW060
BKN200
FEW060
BKN200
FEW060
BKN200
FEW060
BKN200
FEW060
BKN200
BKN030
BKN080
BKN018CB
OVC030
BKN018CB
OVC030
BKN018CB
OVC030
BKN018CB
OVC030
BKN030
BKN080
BKN030
BKN080
BKN030
BKN080
BKN030
BKN080
OVC015
OVC015
OVC010
OVC010
OVC010
OVC010
OVC010
OVC010
OVC010
OVC010
Ceiling
20,000 ft
AGL
20,000 ft
AGL
20,000 ft
AGL
20,000 ft
AGL
20,000 ft
AGL
20,000 ft
AGL
3,000 ft
AGL
1,800 ft
AGL
1,800 ft
AGL
1,800 ft
AGL
1,800 ft
AGL
3,000 ft
AGL
3,000 ft
AGL
3,000 ft
AGL
3,000 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
1,000 ft
AGL
1,000 ft
AGL
1,000 ft
AGL
1,000 ft
AGL
1,000 ft
AGL
1,000 ft
AGL
1,000 ft
AGL
1,000 ft
AGL
Flight Rules VFR VFR VFR VFR VFR VFR VFR MVFR MVFR MVFR MVFR VFR VFR VFR VFR MVFR MVFR IFR IFR IFR IFR MVFR MVFR MVFR MVFR
Day/Night
☀️
Day
🌇 18:37Z
☀️
Day
🌇 18:37Z
🌇
Dusk
🌇 18:37Z
🌙
Night
🌇 18:37Z
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 05:21Z
🌙
Night
🌅 05:21Z
🌅
Dawn
🌅 05:21Z
☀️
Day
🌅 05:21Z
☀️
Day
🌅 05:21Z
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 18:38Z
☀️
Day
🌇 18:38Z
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
220° at 15 kt
Gusts: 25 kt
Visibility
10+ km
Clouds
BKN200
📖 Plain English Explanation:

This is the base forecast condition. Winds from the Southwest (220°) at 15 kt. Gusts up to 25 kt are expected. Visibility will be excellent at 10+ km. Broken clouds at 20000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

BECMG 18:00Z - 19:00Z
VFR
Wind
230° at 20 kt
Gusts: 30 kt
Visibility
10+ km
Clouds
FEW060 BKN200
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the Southwest (230°) at 20 kt. Gusts up to 30 kt are expected. Visibility will be excellent at 10+ km. Few clouds at 6000 feet, Broken clouds at 20000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

BECMG 23:00Z - 00:00Z
VFR
Wind
230° at 12 kt
Visibility
9 km
Weather
Light Showers Rain
Clouds
BKN030 BKN080
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the Southwest (230°) at 12 kt. Visibility will be good at 9 km. Weather conditions: Light Showers Rain. Broken clouds at 3000 feet, Broken clouds at 8000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

TEMPO 00:00Z - 04:00Z
MVFR
Wind
VRB° at 10 kt
Gusts: 15 kt
Visibility
6 km
Weather
Light Thunderstorm Rain
Clouds
BKN018CB OVC030
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Winds will be variable in direction at 10 kt. Gusts up to 15 kt are expected. Visibility will be good at 6 km. Weather conditions: Light Thunderstorm Rain. Broken clouds at 1800 feet, Overcast skies at 3000 feet. Marginal VFR conditions - some restrictions for visual flying.

BECMG 08:00Z - 09:00Z
MVFR
Wind
230° at 8 kt
Visibility
10+ km
Clouds
OVC015
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the Southwest (230°) at 8 kt. Visibility will be excellent at 10+ km. Overcast skies at 1500 feet. Marginal VFR conditions - some restrictions for visual flying.

BECMG 10:00Z - 11:00Z
IFR
Wind
VRB° at 6 kt
Visibility
4.8 km
Weather
Mist
Clouds
OVC010
📖 Plain English Explanation:

Conditions will gradually change to become: Winds will be variable in direction at 6 kt. Visibility will be moderate at 4.8 km. Weather conditions: Mist. Overcast skies at 1000 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

BECMG 14:00Z - 15:00Z
MVFR
Wind
270° at 8 kt
Visibility
10+ km
Clouds
OVC010
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the West (270°) at 8 kt. Visibility will be excellent at 10+ km. Overcast skies at 1000 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.