Grand Forks Air Force Base

KRDR / RDR

Grand Forks, US

Current TAF Forecast

Raw TAF:
TAF AMD KRDR 092312Z 0923/1102 15030G40KT 9999 SCT080 510002 QNH2950INS TEMPO 1000/1002 VCTS OVC050CB BECMG 1002/1003 15045G55KT 1600 +TSRAGR OVC030CB QNH2950INS BECMG 1007/1008 18009KT 9999 NSW SCT090 QNH2946INS BECMG 1012/1013 27010G20KT 9999 VCTS BKN070CB QNH2945INS TEMPO 1014/1017 27020G30KT 8000 -TSRA BKN050CB TX33/0923Z TN17/1011Z LAST NO AMDS AFT 0923 NEXT 1012

Detailed TAF Table

Parameter
Wed
07:00Z
+-1h
Wed
08:00Z
+0h
Wed
09:00Z
+1h
Wed
10:00Z
+2h
Wed
11:00Z
+3h
Wed
12:00Z
+4h
Wed
13:00Z
+5h
Wed
14:00Z
+6h
Wed
15:00Z
+7h
Wed
16:00Z
+8h
Wed
17:00Z
+9h
Wed
18:00Z
+10h
Wed
19:00Z
+11h
Wed
20:00Z
+12h
Wed
21:00Z
+13h
Wed
22:00Z
+14h
Wed
23:00Z
+15h
Thu
00:00Z
+16h
Wind Dir
150°
SE
180°
S
180°
S
180°
S
180°
S
180°
S
180°
S
270°
W
270°
W
270°
W
180°
S
180°
S
180°
S
180°
S
180°
S
180°
S
180°
S
180°
S
Wind Speed
30 kt
G40 kt
9 kt
G55 kt
9 kt
G55 kt
9 kt
G55 kt
9 kt
G55 kt
9 kt
G55 kt
9 kt
G55 kt
20 kt
G30 kt
20 kt
G30 kt
20 kt
G30 kt
9 kt
G55 kt
9 kt
G55 kt
9 kt
G55 kt
9 kt
G55 kt
9 kt
G55 kt
9 kt
G55 kt
9 kt
G55 kt
9 kt
G55 kt
Visibility
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
1.012 km
1.012 km
1.012 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
Light Thunderstorm Rain
-TSRA
Light Thunderstorm Rain
-TSRA
Light Thunderstorm Rain
-TSRA
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Clouds
SCT080
SCT090
SCT090
SCT090
SCT090
SCT090
SCT090
BKN050CB
BKN050CB
BKN050CB
SCT090
SCT090
SCT090
SCT090
SCT090
SCT090
SCT090
SCT090
Ceiling
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
5,000 ft
AGL
5,000 ft
AGL
5,000 ft
AGL
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
Flight Rules VFR VFR VFR VFR VFR VFR VFR LIFR LIFR LIFR VFR VFR VFR VFR VFR VFR VFR VFR
Day/Night
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 19:27Z
☀️
Day
🌇 19:27Z
☀️
Day
🌇 19:27Z
🌙
Night
🌇 19:27Z
🌙
Night
🌇 19:27Z
🌙
Night
🌙
Night
🌙
Night
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
VFR
Wind
150° at 30 kt
Gusts: 40 kt
Visibility
10+ km
Clouds
SCT080
📖 Plain English Explanation:

This is the base forecast condition. Winds from the South-Southeast (150°) at 30 kt. Gusts up to 40 kt are expected. Visibility will be excellent at 10+ km. Scattered clouds at 8000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

TEMPO 00:00Z - 02:00Z
MVFR
Clouds
OVC050CB
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Overcast skies at 5000 feet. Marginal VFR conditions - some restrictions for visual flying.

BECMG 02:00Z - 03:00Z
LIFR
Wind
150° at 45 kt
Gusts: 55 kt
Visibility
1.6 km
Weather
Heavy Thunderstorm RAGR
Clouds
OVC030CB
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the South-Southeast (150°) at 45 kt. Gusts up to 55 kt are expected. Visibility will be moderate at 1.6 km. Weather conditions: Heavy Thunderstorm RAGR. Overcast skies at 3000 feet. Low IFR conditions - challenging even for instrument operations.

BECMG 07:00Z - 08:00Z
VFR
Wind
180° at 9 kt
Visibility
10+ km
Clouds
SCT090
📖 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 9000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

BECMG 12:00Z - 13:00Z
MVFR
Wind
270° at 10 kt
Gusts: 20 kt
Visibility
10+ km
Clouds
BKN070CB
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the West (270°) at 10 kt. Gusts up to 20 kt are expected. Visibility will be excellent at 10+ km. Broken clouds at 7000 feet. Marginal VFR conditions - some restrictions for visual flying.

TEMPO 14:00Z - 17:00Z
LIFR
Wind
270° at 20 kt
Gusts: 30 kt
Visibility
1.012 km
Weather
Light Thunderstorm Rain
Clouds
BKN050CB
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Winds from the West (270°) at 20 kt. Gusts up to 30 kt are expected. Visibility will be poor at 1.012 km. Weather conditions: Light Thunderstorm Rain. Broken clouds at 5000 feet. Low IFR conditions - challenging even for instrument 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.