// Station · 35m ago

KOAK

San Francisco Bay Oakland International Airport

CAT MVFR

WIND 250° / 3 kt

VIS 10+ SM

CEILING BKN at 1,000 ft

T/Td 12.8°C / 10.6°C

ALTIM 29.93 inHg

ELEV 9 FT

37.7201°N / 122.2212°W

LOCATION · Oakland, US

WIND

250°3 kt

KOAK · 9 FT

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

METRIC

NOW · 13Z

+6H

+12H

+18H

WIND

250°/3

VIS

10+ SM

CEILING

BKN010

LAYERS

FEW005 BKN010 BKN200

T / Td

13 / 11

ALTIM

29.93"

// Interpretation

MVFR — ceiling 1,000 ft. Light winds at 250°/3 kt, visibility better than 10 statute miles, a few at 500 ft, broken at 1,000 ft, and broken at 20,000 ft. Would drop to IFR below 1,000 ft ceiling or 3 SM visibility, or rise back to VFR above 3,000 ft and 5 SM.

Loading TAF forecast narrative…

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

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// Raw observation METAR string + decoded

METAR KOAK 111353Z 25003KT 10SM FEW005 BKN010 BKN200 13/11 A2993 RMK AO2 SLP135 T01280106

KOAK · day 11 at 13:53 UTC · wind from 250° at 3 kt · visibility 10+ SM · a few clouds at 500 ft · broken layer at 1,000 ft · broken layer at 20,000 ft · temp 13°C / dewpoint 11°C · altimeter 29.93" Hg · automated station w/ precipitation discriminator · sea-level pressure 1013.5 mb

// Runway analysis · computed from current METAR wind

Wind 250° @ 3 kt

ALL USABLE · WINDS CALM

WIND

250°3 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 8 ends

12 HDG 120° —CALM —— 10,520'

30 HDG 300° —CALM —— 10,520'

10R HDG 100° —CALM —— 6,213'

28L HDG 280° —CALM —— 6,213'

10L HDG 100° —CALM —— 5,457'

28R HDG 280° —CALM —— 5,457'

15 HDG 150° —CALM —— 3,376'

33 HDG 330° —CALM —— 3,376'

Pattern altitude: 1,009 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 -2°C

-300FT

-309 FT BELOW FIELD ELEV

FIELD ELEV9 FT OAT+13°C ISA DELTA-2°C PRESSURE ALT-3 FT

// Performance equivalent Operating here right now feels like operating at KCLR (Cliff Hatfield Memorial Airport, Calipatria, elev -182 ft) on a standard ISA day.

// Aircraft performance impact MINOR

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+0%

-0%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+0%

-0%

Light jetCJ4, Phenom 300, M2

+0%

-0%

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 · 3 reported · highest to lowest

// Reported layers (highest → lowest)

BKN200

Broken · base 20,000 ft AGL · ~5–7 oktas

BKN010

Broken · base 1,000 ft AGL · ~5–7 oktas

FEW005

Few · base 500 ft AGL · ~1–2 oktas

// Computed

CEILING1,000 ft AGL HIGHEST LAYER20,000 ft TOTAL COVERAGE~91% (overcast) FREEZING LEVEL6,474 ft VFR MARGIN-2,000 ft

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

12:57ZSUNRISE

20:15ZSOLAR NOON

03:33ZSUNSET

04:04ZCIVIL END

CURRENT14:28Z DAYLIGHT REMAINING13h 05m VFR NIGHT BEGINS04:04Z (13h 35m) DAY LENGTH14h 35m

Waning Crescent

ILLUMINATION11% MOONRISE10:21Z MOONSET00:57Z FULL MOON IN18 days

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

KSJC

VFR

Norman Y. Mineta San Jose International Airport · San Jose

WIND: CALM
VIS: 10+ SM
CEILING: BKN040
DIST: 26 NM SE
AGE: 35m ago

KC83

VFR

Byron Airport · Byron

WIND: 230° / 15 ktG22
VIS: 10+ SM
CEILING: CLR
DIST: 29 NM E
AGE: 13m ago

KAPC

IFR → VFR 16Z

Napa County Airport · Napa

WIND: 350° / 4 kt
VIS: 10+ SM
CEILING: BKN008
DIST: 30 NM N
AGE: 34m ago

KDVO

VFR

Marin County Airport - Gnoss Field · Novato

WIND: 010° / 5 kt
VIS: 10+ SM
CEILING: FEW004
DIST: 30 NM NW
AGE: 13m ago

KRHV

VFR

Reid-Hillview Airport of Santa Clara County · San Jose

WIND: CALM
VIS: 10+ SM
CEILING: SCT010
DIST: 30 NM SE
AGE: 33m ago

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

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