March Air Reserve Base

KRIV / RIV

Riverside, US

Current TAF Forecast

Raw TAF:
TAF COR KRIV 221248Z 2212/2318 24004KT 9999 FEW030 QNH3008INS BECMG 2215/2216 29004KT 9999 FEW030 SCT250 BECMG 2220/2221 32009KT 9999 FEW050 SCT250 QNH2999INS TEMPO 2221/2302 32012G20KT BECMG 2302/2303 30006KT 9999 SKC QNH2998INS BECMG 2307/2308 17006KT 9999 FEW030 QNH3000INS BECMG 2315/2316 14006KT 9999 SKC QNH2997INS TX21/2222Z TN09/2213Z

Detailed TAF Table

Parameter
Wed
17:00Z
+-1h
Wed
18:00Z
+0h
Wed
19:00Z
+1h
Wed
20:00Z
+2h
Wed
21:00Z
+3h
Wed
22:00Z
+4h
Wed
23:00Z
+5h
Thu
00:00Z
+6h
Thu
01:00Z
+7h
Thu
02:00Z
+8h
Thu
03:00Z
+9h
Thu
04:00Z
+10h
Thu
05:00Z
+11h
Thu
06:00Z
+12h
Thu
07:00Z
+13h
Thu
08:00Z
+14h
Thu
09:00Z
+15h
Thu
10:00Z
+16h
Thu
11:00Z
+17h
Thu
12:00Z
+18h
Thu
13:00Z
+19h
Thu
14:00Z
+20h
Thu
15:00Z
+21h
Thu
16:00Z
+22h
Wind Dir
240°
SW
240°
SW
240°
SW
320°
NW
320°
NW
320°
NW
320°
NW
320°
NW
320°
NW
300°
NW
300°
NW
300°
NW
300°
NW
300°
NW
170°
S
170°
S
170°
S
170°
S
170°
S
170°
S
170°
S
170°
S
140°
SE
140°
SE
Wind Speed
4 kt
4 kt
4 kt
9 kt
12 kt
G20 kt
12 kt
G20 kt
12 kt
G20 kt
12 kt
G20 kt
12 kt
G20 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 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
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Clouds
FEW030
FEW030
FEW030
FEW050
SCT250
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
CLR
CLR
CLR
CLR
CLR
FEW030
FEW030
FEW030
FEW030
FEW030
FEW030
FEW030
FEW030
CLR
CLR
Ceiling
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
Flight Rules VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR
Day/Night
☀️
Day
🌇 18:33Z
☀️
Day
🌇 18:33Z
🌇
Dusk
🌇 18:33Z
🌙
Night
🌇 18:33Z
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 05:26Z
🌙
Night
🌅 05:26Z
🌅
Dawn
🌅 05:26Z
☀️
Day
🌅 05:26Z
☀️
Day
🌅 05:26Z
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 18:34Z
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
240° at 4 kt
Visibility
10+ km
Clouds
FEW030
📖 Plain English Explanation:

This is the base forecast condition. Winds from the West-Southwest (240°) at 4 kt. Visibility will be excellent at 10+ km. Few clouds at 3000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

BECMG 15:00Z - 16:00Z
VFR
Wind
290° at 4 kt
Visibility
10+ km
Clouds
FEW030 SCT250
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the West-Northwest (290°) at 4 kt. Visibility will be excellent at 10+ km. Few clouds at 3000 feet, Scattered clouds at 25000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

BECMG 20:00Z - 21:00Z
VFR
Wind
320° at 9 kt
Visibility
10+ km
Clouds
FEW050 SCT250
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the Northwest (320°) at 9 kt. Visibility will be excellent at 10+ km. Few clouds at 5000 feet, Scattered clouds at 25000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

TEMPO 21:00Z - 02:00Z
VFR
Wind
320° at 12 kt
Gusts: 20 kt
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Winds from the Northwest (320°) at 12 kt. Gusts up to 20 kt are expected. Conditions will be suitable for Visual Flight Rules (VFR) operations.

BECMG 02:00Z - 03:00Z
VFR
Wind
300° at 6 kt
Visibility
10+ km
Clouds
CLR
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the West-Northwest (300°) at 6 kt. Visibility will be excellent at 10+ km. Skies will be clear. Conditions will be suitable for Visual Flight Rules (VFR) operations.

BECMG 07:00Z - 08:00Z
VFR
Wind
170° at 6 kt
Visibility
10+ km
Clouds
FEW030
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the South (170°) at 6 kt. Visibility will be excellent at 10+ km. Few clouds at 3000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

BECMG 15:00Z - 16:00Z
VFR
Wind
140° at 6 kt
Visibility
10+ km
Clouds
CLR
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the Southeast (140°) at 6 kt. Visibility will be excellent at 10+ km. Skies will be clear. 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.