// Station · 5m ago

KHAF

Half Moon Bay Airport

CAT MVFR

WIND 330° / 11 kt

VIS 5.0 SM

CEILING BKN at 1,300 ft

T/Td 14°C / 12°C

ALTIM 30.16 inHg

WX HZ

ELEV 66 FT

37.5134°N / 122.5010°W

LOCATION · Half Moon Bay, US

WIND

330°11 kt

KHAF · 66 FT

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

METRIC

NOW · 20Z

+6H

+12H

+18H

WIND

330°/11

VIS

5.0 SM

CEILING

BKN013

LAYERS

BKN013

T / Td

14 / 12

ALTIM

30.16"

// Interpretation

MVFR — ceiling 1,300 ft. Moderate winds at 330°/11 kt, visibility 5.0 SM, broken at 1,300 ft. Reported weather: HZ. 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 KHAF 302055Z AUTO 33011KT 5SM HZ BKN013 14/12 A3016 RMK AO2

KHAF · day 30 at 20:55 UTC · wind from 330° at 11 kt · visibility 5.0 SM · broken layer at 1,300 ft · temp 14°C / dewpoint 12°C · altimeter 30.16" Hg · weather: HZ · automated station w/ precipitation discriminator

// Runway analysis · computed from current METAR wind

Wind 330° @ 11 kt

1 USABLE · 1 AVOID

WIND

330°11 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 1 usable

30★ HDG 300° H10 kt X5 kt RIGHT PRIMARY · 5,000'

TAILWIND ENDS · AVOID 1 ends

12 HDG 120° T10 kt X6 kt LEFT —

Pattern altitude: 1,066 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

-300FT

-366 FT BELOW FIELD ELEV

// DA · LAST 24 HOURS ↘ -200 FT

24h AGO18h12h6hNOW

FIELD ELEV66 FT OAT+14°C ISA DELTA-1°C PRESSURE ALT-176 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 · 1 reported · highest to lowest

// Reported layers (highest → lowest)

BKN013

Broken · base 1,300 ft AGL · ~5–7 oktas

// Computed

CEILING1,300 ft AGL HIGHEST LAYER1,300 ft TOTAL COVERAGE~75% (mostly covered) FREEZING LEVEL7,137 ft VFR MARGIN-1,700 ft

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

12:52ZSUNRISE

20:09ZSOLAR NOON

03:25ZSUNSET

03:55ZCIVIL END

CURRENT21:00Z DAYLIGHT REMAINING6h 24m VFR NIGHT BEGINS03:55Z (6h 55m) DAY LENGTH14h 32m

Full Moon

ILLUMINATION100% MOONRISE00:22Z MOONSET14:54Z FULL MOON IN1 day

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

KRHV

VFR

Reid-Hillview Airport of Santa Clara County · San Jose

WIND: 320° / 10 ktG15
VIS: 10+ SM
CEILING: FEW030
DIST: 34 NM E
AGE: 13m ago

KCCR

VFR

Buchanan Field · Concord

WIND: 310° / 11 kt
VIS: 10+ SM
CEILING: CLR
DIST: 36 NM NE
AGE: 7m ago

KDVO

VFR

Marin County Airport - Gnoss Field · Novato

WIND: 160° / 6 kt
VIS: 10+ SM
CEILING: CLR
DIST: 38 NM N
AGE: 5m ago

KAPC

VFR

Napa County Airport · Napa

WIND: 210° / 9 kt
VIS: 10+ SM
CEILING: FEW050
DIST: 43 NM N
AGE: 6m ago

KO69

VFR

Petaluma Municipal Airport · Petaluma

WIND: CALM
VIS: 10+ SM
CEILING: CLR
DIST: 45 NM N
AGE: 5m ago

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

AIRSPACE

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