// Station · 23m ago

KSFO

San Francisco International Airport

CAT VFR

WIND CALM

VIS 10+ SM

CEILING BKN at 20,000 ft

T/Td 12.8°C / 10°C

ALTIM 29.93 inHg

ELEV 13 FT

37.6198°N / 122.3748°W

LOCATION · San Francisco, US

WIND

000°0 kt

KSFO · 13 FT

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

METRIC

NOW · 13Z

+6H

+12H

+18H

WIND

CALM

VIS

10+ SM

CEILING

BKN200

LAYERS

FEW008 BKN200

T / Td

13 / 10

ALTIM

29.93"

// Interpretation

VFR — ceiling 20,000 ft. Winds calm, visibility better than 10 statute miles, a few at 800 ft, and broken at 20,000 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 KSFO 111356Z 00000KT 10SM FEW008 BKN200 13/10 A2993 RMK AO2 SLP133 T01280100 $

KSFO · day 11 at 13:56 UTC · winds calm · visibility 10+ SM · a few clouds at 800 ft · broken layer at 20,000 ft · temp 13°C / dewpoint 10°C · altimeter 29.93" Hg · automated station w/ precipitation discriminator · sea-level pressure 1013.3 mb

// Runway analysis · computed from current METAR wind

Wind CALM

ALL USABLE · WINDS CALM

WIND

000°calm

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 8 ends

10L HDG 100° —CALM —— 11,870'

28R HDG 280° —CALM —— 11,870'

10R HDG 100° —CALM —— 11,381'

28L HDG 280° —CALM —— 11,381'

1R HDG 010° —CALM —— 8,660'

19L HDG 190° —CALM —— 8,660'

1L HDG 010° —CALM —— 7,650'

19R HDG 190° —CALM —— 7,650'

Pattern altitude: 1,013 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

-313 FT BELOW FIELD ELEV

// DA · LAST 24 HOURS ↘ -100 FT

24h AGO18h12h6hNOW

FIELD ELEV13 FT OAT+13°C ISA DELTA-2°C PRESSURE ALT1 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 · 2 reported · highest to lowest

// Reported layers (highest → lowest)

BKN200

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

FEW008

Few · base 800 ft AGL · ~1–2 oktas

// Computed

CEILING20,000 ft AGL HIGHEST LAYER20,000 ft TOTAL COVERAGE~83% (mostly covered) FREEZING LEVEL6,478 ft VFR MARGIN+17,000 ft

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

12:58ZSUNRISE

20:16ZSOLAR NOON

03:33ZSUNSET

04:04ZCIVIL END

CURRENT14:19Z DAYLIGHT REMAINING13h 13m VFR NIGHT BEGINS04:04Z (13h 44m) DAY LENGTH14h 35m

Waning Crescent

ILLUMINATION11% MOONRISE10:22Z MOONSET00:57Z FULL MOON IN18 days

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

KSQL

VFR

San Carlos Airport · San Carlos

WIND: 190° / 3 kt
VIS: 10+ SM
CEILING: CLR
DIST: 9 NM SE
AGE: 24m ago

KHAF

IFR → MVFR 18Z

Half Moon Bay Airport · Half Moon Bay

WIND: 320° / 4 kt
VIS: 5.0 SM
CEILING: OVC009
DIST: 9 NM SW
AGE: 4m ago

KOAK

MVFR → VFR 16Z

San Francisco Bay Oakland International Airport · Oakland

WIND: 250° / 3 kt
VIS: 10+ SM
CEILING: BKN010
DIST: 9 NM NE
AGE: 26m ago

KHWD

MVFR

Hayward Executive Airport · Hayward

WIND: 240° / 5 kt
VIS: 10+ SM
CEILING: BKN011
DIST: 12 NM E
AGE: 25m ago

KNUQ

MVFR

Moffett Federal Airfield · Mountain View

WIND: CALM
VIS: 9.0 SM
CEILING: BKN011
DIST: 20 NM SE
AGE: 4m ago

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

AIRSPACE

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