March Air Reserve Base

KRIV / RIV

Riverside, US

Last Updated
Apr 22, 16:55Z

Current Weather

Display Units
Recent 34 min ago
16:55Z

☀️ Day
VFR
Flight Rules
16°C
Temperature
Dewpoint: 6°C
0 kt
10 SM
Visibility
25,000 ft
Ceiling
Above Ground Level
1020 hPa
QNH
Altimeter Setting

Raw METAR

METAR KRIV 221655Z 00000KT 10SM SCT036 BKN250 16/06 A3012 RMK AO2A SLP194 T01640057

Clouds - Visual Profile

12,000ft
9,000ft
6,000ft
3,000ft
Ground
Field Elev: 1,536 ft
SCT 3,600 ft AGL
BKN 25,000 ft AGL
SCT
Scattered (3/8-4/8 sky coverage)
3,600 ft
AGL (Above Ground)
5,136 ft AMSL
☁️
BKN
Broken (5/8-7/8 sky coverage)
25,000 ft
AGL (Above Ground)
26,536 ft AMSL

Weather Briefing

VFR

March Air Reserve Base is currently reporting visual flight rules (VFR) conditions with broken clouds at 25,000 feet and 10 SM visibility.

Wind Analysis

Winds are calm, presenting no crosswind concerns for any runway.

Visibility & Ceiling

Visibility is 10 SM. The ceiling is 25000 feet AGL (broken), well above standard VFR minimums.

Temperature & Moisture

Temperature is 16°C (61°F) with a dewpoint of 6°C, indicating moderate moisture conditions.

Forecast Outlook

The TAF forecast covers the next 30 hours. Conditions are expected to remain VFR throughout the forecast period. Temporary VFR conditions are forecast between 21:00Z and 02:00Z.

Pilot Recommendations

Conditions are favorable for visual flight.

This briefing is generated from real-time METAR and TAF data. Always verify with official sources before flight.

QNH
1020 hPa
Sea Level Pressure
For altitude above MSL
QFE
969 hPa
Field Pressure
Height above aerodrome (1,536 ft)
Pressure Alt
1,334 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: 1,823 ft
ISA Deviation: +4.1°C

Forecast (TAF)

View Full TAF
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
Upcoming Changes (Next 12 Hours)
17:29Z BASE
+0h
VFR 240° 4 kt
Visibility: 10+ km
20:00Z BECMG
+3h
VFR 320° 9 kt
Visibility: 10+ km
21:00Z TEMPO
+4h
VFR 320° 12 kt
02:00Z BECMG
+9h
VFR 300° 6 kt
Visibility: 10+ km

24-Hour Weather Evolution

Loading weather data...
Data Sources
  • • Current conditions from METAR observations
  • • Historical data from past 24 hours
  • • No forecast or predicted data included
  • • Data updated with each new METAR report
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Note: Future values beyond current TAF validity are estimates based on climatological data and trends. Always verify with current forecasts before flight operations.

Airport Runway Layout

N
RIV
12
30
14
32

Runway Information

Runway Length Width Surface Heading Wind Component
12/30 3,010 ft 100 ft ASP 135°
0.0 kt 0.0 kt
135° angle
14/32 13,300 ft 200 ft CON 149°
0.0 kt 0.0 kt
149° angle
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Weather Statistics - KRIV

5,924 observations | Sep 2025 - Apr 2026

Flight Rules Distribution

VFR
82.1%
MVFR
12.4%
IFR
3.1%
LIFR
2.3%

March Air Reserve Base enjoys predominantly VFR conditions, with visual flight rules prevailing 82.1% of the time. Prevailing winds are from the NW averaging 6.3 knots. Calm conditions occur 44.6% of the time. Temperature extremes range from -1°C to 37°C, reflecting significant seasonal variation. The best months for VFR flying are March, April, October.

Wind Analysis

Prevailing Direction: NW (315°)
Average Speed: 6.3 kt
Maximum Recorded: 29 kt
Calm Winds: 44.6%
Direction Distribution:
N
6.3%
NE
2.7%
E
5.8%
SE
10.2%
S
7.4%
SW
0.9%
W
5.2%
NW
16.9%

Temperature Range

Average: 15.7°C
Range: -1°C to 37°C
-1°C 37°C

Visibility

Average: 9.5 SM
Below 3 SM: 1%
Fog Frequency: 2%

Best Months for VFR

March April October

Runway Wind Analysis

Runway 12/30
Favorable wind: 100%
Avg crosswind: 2.8 kt
Runway 14/32
Favorable wind: 100%
Avg crosswind: 2.5 kt

Statistics computed from 5,924 METAR observations (Sep 2025 - Apr 2026). Data sourced from official aviation weather services. Updated daily.

March Air Reserve Base - Airport Information

Airport Details

ICAO Code: KRIV
IATA Code: RIV
Type: medium airport
Status: active
Elevation: 1,536 ft MSL

Location

City: Riverside
Country: US
Latitude: 33.880699°
Longitude: -117.259003°
Time Zone: Etc/GMT+8

Runway Information

Runway 12/30
Length: 3,010 ft
Width: 100 ft
Surface: ASP
ILS: No
Runway 14/32
Length: 13,300 ft
Width: 200 ft
Surface: CON
ILS: No

About March Air Reserve Base

Overview

March Air Reserve Base (KRIV) is a medium airport located in Riverside, California, serving as an important military aviation facility. Situated at an elevation of 1,536 feet MSL with coordinates 33.880699, -117.259003, the base supports air reserve operations with two significant runways. Its strategic location in Southern California provides a critical infrastructure for military aviation activities.

Flying Conditions

The airport experiences predominantly VFR conditions, with 78.9% of observations indicating clear flying weather. Temperature ranges from 2°C to 37°C, creating moderate climate variability for pilots. Wind patterns are consistently from the northwest at an average of 6.1 knots, with calm conditions occurring 44.6% of the time. October, November, and December represent the most favorable VFR months for aviation operations.

Notable Features

March Air Reserve Base features two runways: a 3,010-foot asphalt runway (12/30) and a substantial 13,300-foot concrete runway (14/32). Both runways demonstrate excellent wind alignment, with 100% favorable wind conditions and minimal average crosswind (2.7kt and 2.4kt respectively). The airport's elevation and geographic positioning contribute to generally stable atmospheric conditions.

Approach Considerations

Pilots can expect consistent visibility averaging 9.4 statute miles, with infrequent low visibility events (below 3SM occurring only 1.2% of observations). The northwest prevailing winds suggest potential preference for runways aligned in that directional quadrant. Careful attention should be paid during the rare instances of reduced visibility, which occur in approximately 2.3% of observations.

Data Sources & Accuracy: Airport information sourced from OurAirports.com, a collaborative database of worldwide airport data. Weather data from official aviation weather services including NOAA Aviation Weather Center and international METAR/TAF providers. Information is updated regularly but pilots should always verify current conditions and NOTAMs through official channels before flight operations.

Official Data Sources

Weather NOAA Aviation Weather Center • International METAR/TAF Network
Airports OurAirports.com • Public domain airport database
NOTAMs FAA NOTAM System • ICAO NOTAM Distribution
Last updated: Jan 1, 1970 12:00 AM UTC

Disclaimer: Data is provided for informational purposes only. Pilots must verify all information through official sources before flight operations. Weather conditions change rapidly; always obtain a current briefing from approved weather services.