// Station · 56m ago

KRIV

March Air Reserve Base

CAT VFR

WIND 170° / 7 kt

VIS 10+ SM

CEILING Few/scattered only

T/Td 12.8°C / 8.9°C

ALTIM 29.78 inHg

ELEV 1,536 FT

33.8807°N / 117.2590°W

LOCATION · Riverside, US

WIND

170°7 kt

KRIV · 1,536 FT

// Current + 24h forecast · METAR loaded · TAF loading…

METRIC

NOW · 08Z

+6H

+12H

+18H

WIND

170°/7

VIS

10+ SM

CEILING

—

LAYERS

FEW030 SCT055

T / Td

13 / 9

ALTIM

29.78"

// Interpretation

VFR with light winds at 170°/7 kt. Visibility better than 10 statute miles and a few at 3,000 ft, and scattered at 5,500 ft. Would shift to MVFR if the ceiling drops to 3,000 ft or visibility below 5 SM.

Loading TAF forecast narrative…

SOURCES · NOAA Aviation Weather Center METAR (TAF loading…)

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// Raw observation METAR string + decoded

METAR KRIV 270855Z 17007KT 10SM FEW030 SCT055 13/09 A2978 RMK AO2A SLP076 T01280089 53001

KRIV · day 27 at 08:55 UTC · wind from 170° at 7 kt · visibility 10+ SM · a few clouds at 3,000 ft · scattered layer at 5,500 ft · temp 13°C / dewpoint 9°C · altimeter 29.78" Hg · sea-level pressure 1007.6 mb

// Runway analysis · computed from current METAR wind

Wind 170° @ 7 kt

2 USABLE · 2 AVOID

WIND

170°7 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 2 usable

14★ HDG 140° H6 kt X3 kt RIGHT PRIMARY · 13,302'

12 HDG 120° H4 kt X5 kt RIGHT 3,061'

TAILWIND ENDS · AVOID 2 ends

30 HDG 300° T4 kt X5 kt LEFT —

32 HDG 320° T6 kt X3 kt LEFT —

Pattern altitude: 2,536 ft MSL (1,000 ft AGL). Verify pattern direction and altitude with the chart supplement before flying. // On calm winds (<3 kt), all runways are usable — favor the longest or whatever the pattern calls for.

// Density altitude · ISA +1°C

1,800FT

+264 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS ↗ +0 FT

24h AGO18h12h6hNOW

FIELD ELEV1,536 FT OAT+13°C ISA DELTA+1°C PRESSURE ALT1,675 FT

// Performance equivalent Operating here right now feels like operating at KDAG (Barstow Daggett Airport, Daggett, elev 1,930 ft) on a standard ISA day.

// Aircraft performance impact MINOR

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+18%

-13%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+13%

-8%

Light jetCJ4, Phenom 300, M2

+7%

-5%

Approximate using ~10% perf loss / 1,000 ft DA for normally aspirated, scaled by powerplant type. Verify with your aircraft's POH for accurate numbers — especially above 5,000 ft DA where these rules of thumb diverge.

// Cloud layers · 2 reported · highest to lowest

// Reported layers (highest → lowest)

SCT055

Scattered · base 5,500 ft AGL · ~3–4 oktas

FEW030

Few · base 3,000 ft AGL · ~1–2 oktas

// Computed

CEILING— HIGHEST LAYER5,500 ft TOTAL COVERAGE~48% (mixed) FREEZING LEVEL8,001 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC-8)

12:42ZSUNRISE

19:47ZSOLAR NOON

02:52ZSUNSET

03:21ZCIVIL END

CURRENT09:51Z DAYLIGHT REMAINING17h 01m VFR NIGHT BEGINS03:21Z (17h 29m) DAY LENGTH14h 10m

Waxing Gibbous

ILLUMINATION82% MOONRISE21:23Z MOONSET11:33Z FULL MOON IN4 days

// Nearest reporting stations · 5 shown · 60 NM radius

KRAL

VFR

Riverside Municipal Airport · Riverside

WIND: VRB / 4 kt
VIS: 10+ SM
CEILING: BKN041
DIST: 10 NM NW
AGE: 18m ago

KSBD

MVFR → VFR 11Z

San Bernardino International Airport · San Bernardino

WIND: 260° / 7 kt
VIS: 10+ SM
CEILING: OVC025
DIST: 13 NM N
AGE: 11m ago

KONT

VFR

Ontario International Airport · Ontario

WIND: 240° / 7 kt
VIS: 10+ SM
CEILING: BKN043
DIST: 20 NM NW
AGE: 58m ago

KSNA

VFR

John Wayne Orange County International Airport · Santa Ana

WIND: 180° / 4 kt
VIS: 10+ SM
CEILING: SCT050
DIST: 33 NM W
AGE: 58m ago

KPSP

VFR

Palm Springs International Airport · Palm Springs

WIND: 120° / 6 kt
VIS: 10+ SM
CEILING: CLR
DIST: 38 NM E
AGE: 58m ago

// Area map · 60 NM radius · CartoDB Dark Matter + aeronautical overlay

AIRSPACE

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