// Station · 28m ago

ZSOF

Hefei Xinqiao International Airport

CAT IFR

WIND 310° / 12 kt

VIS 1.2 SM

CEILING CLR

T/Td 22°C / 17°C

ALTIM 30.15 inHg

WX HZ

ELEV 207 FT

31.9878°N / 116.9769°E

LOCATION · Hefei, CN

WIND

310°12 kt

ZSOF · 207 FT

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

METRIC

NOW · 02Z

+6H

+12H

+18H

WIND

310°/12

VIS

1.2 SM

CEILING

CLR

LAYERS

—

T / Td

22 / 17

ALTIM

30.15"

// Interpretation

IFR conditions — visibility 1.2 SM. Moderate winds at 310°/12 kt, visibility 1.2 SM, no reported cloud layers. Reported weather: haze (HZ). Haze is fine dust, salt, or pollution particles suspended in dry air — it reduces visibility and washes out contrast, a dry particulate obscuration rather than a moisture one. Would deteriorate to LIFR below 500 ft ceiling or 1 SM, or improve to MVFR above 1,000 ft and 3 SM.

Loading TAF forecast narrative…

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

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// Raw observation METAR string + decoded

METAR ZSOF 130200Z 31006MPS 1900 HZ NSC 22/17 Q1021 BECMG AT0400 3000

ZSOF · day 13 at 02:00 UTC · wind from 310° at 12 kt · visibility 1.2 SM · temp 22°C / dewpoint 17°C · altimeter 30.15" Hg · weather: haze (HZ)

// Runway analysis · computed from current METAR wind

Wind 310° @ 12 kt

1 USABLE · 1 AVOID

WIND

310°12 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 1 usable

33★ HDG 330° H11 kt X4 kt LEFT PRIMARY · 11,155'

TAILWIND ENDS · AVOID 1 ends

15 HDG 150° T11 kt X4 kt RIGHT —

Pattern altitude: 1,207 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 +7°C

800FT

+593 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV207 FT OAT+22°C ISA DELTA+7°C PRESSURE ALT-23 FT

// Performance equivalent Operating here right now feels like operating at ZHNY (Nanyang Jiangying Airport, Nanyang (Wancheng), elev 840 ft) on a standard ISA day.

// Aircraft performance impact MINOR

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+8%

-6%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+6%

-4%

Light jetCJ4, Phenom 300, M2

+3%

-2%

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. Severity rating assumes a standard altimeter setting (29.92" Hg / 1013 hPa); a non-standard setting shifts the effective altitude by roughly 1,000 ft per 1" Hg of deviation.

// 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 LEVEL11,318 ft VFR MARGINunlimited

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

22:14ZSUNRISE

03:59ZSOLAR NOON

09:44ZSUNSET

10:09ZCIVIL END

CURRENT02:28Z DAYLIGHT REMAINING7h 16m VFR NIGHT BEGINS10:09Z (7h 40m) DAY LENGTH11h 29m

Waxing Crescent

ILLUMINATION3% MOONRISE23:38Z MOONSET11:08Z FULL MOON IN13 days

// Nearest reporting stations

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

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