// Station · 11m ago

NZCH

Christchurch International Airport

CAT VFR

WIND 300° / 4 kt

VIS 6+ SM

CEILING CLR

T/Td -1°C / -2°C

ALTIM 30.18 inHg

ELEV 123 FT

43.4890°S / 172.5321°E

LOCATION · Christchurch, NZ

WIND

300°4 kt

NZCH · 123 FT

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

METRIC

NOW · 15Z

+6H

+12H

+18H

WIND

300°/4

VIS

6+ SM

CEILING

CLR

LAYERS

—

T / Td

-1 / -2

ALTIM

30.18"

// Interpretation

VFR with light winds at 300°/4 kt. Visibility 6+ SM and no reported cloud layers. 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 NZCH 111500Z AUTO 30004KT 9999 NCD M01/M02 Q1022

NZCH · day 11 at 15:00 UTC · wind from 300° at 4 kt · visibility 6+ SM · temp -1°C / dewpoint -2°C · altimeter 30.18" Hg

// Runway analysis · computed from current METAR wind

Wind 300° @ 4 kt

ALL USABLE · WINDS CALM

WIND

300°4 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 6 ends

02 HDG 020° —CALM —— 10,787'

20 HDG 200° —CALM —— 10,787'

11 HDG 110° —CALM —— 5,587'

29 HDG 290° —CALM —— 5,587'

01 HDG 010° —CALM —— 1,690'

19 HDG 190° —CALM —— 1,690'

Pattern altitude: 1,123 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 -16°C

-2,100FT

-2,223 FT BELOW FIELD ELEV

// DA · LAST 24 HOURS ↘ -400 FT

24h AGO18h12h6hNOW

FIELD ELEV123 FT OAT-1°C ISA DELTA-16°C PRESSURE ALT-137 FT

// Performance equivalent Your aircraft will perform as if it's at a field -2,100 ft high on a standard ISA day — that's -2,223 ft above NZCH's actual elevation.

// 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 · clear · no layers reported

// Reported layers (highest → lowest)

CLR

No reported cloud layers — clear sky from surface to reporting ceiling.

// Computed

CEILING— HIGHEST LAYER— TOTAL COVERAGEclear FREEZING LEVEL123 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC+12)

20:01ZSUNRISE

00:36ZSOLAR NOON

05:11ZSUNSET

05:43ZCIVIL END

CURRENT15:11Z DAYLIGHT REMAINING14h 00m VFR NIGHT BEGINS05:43Z (14h 32m) DAY LENGTH9h 09m

Waning Crescent

ILLUMINATION11% MOONRISE17:27Z MOONSET02:37Z FULL MOON IN18 days

// Nearest reporting stations

No nearby reporting stations found within 200 NM of NZCH.

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

AIRSPACE

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