// Station · 1h 10m ago · STALE

LPAR

Alverca Air Base

CAT VFR

WIND 220° / 10 kt

VIS 6+ SM

CEILING Few/scattered only

T/Td 26°C / 16°C

ALTIM 29.94 inHg

ELEV 11 FT

38.8833°N / 9.0301°W

LOCATION · Vila Franca de Xira, PT

WIND

220°10 kt

LPAR · 11 FT

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

METRIC

NOW · 17Z

+6H

+12H

+18H

WIND

220°/10

VIS

6+ SM

CEILING

—

LAYERS

FEW030

T / Td

26 / 16

ALTIM

29.94"

// Interpretation

VFR with moderate winds at 220°/10 kt. Visibility 6+ SM and a few at 3,000 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 LPAR 251700Z 22010KT 190V260 9999 FEW030 26/16 Q1014

LPAR · day 25 at 17:00 UTC · wind from 220° at 10 kt · visibility 6+ SM · a few clouds at 3,000 ft · temp 26°C / dewpoint 16°C · altimeter 29.94" Hg

// Runway analysis · computed from current METAR wind

Wind 220° @ 10 kt

1 USABLE · 1 AVOID

WIND

220°10 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 1 usable

22★ HDG 220° H10 kt X0 kt — PRIMARY · 9,810'

TAILWIND ENDS · AVOID 1 ends

04 HDG 040° T10 kt X0 kt — —

Pattern altitude: 1,011 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 +11°C

1,300FT

+1,289 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV11 FT OAT+26°C ISA DELTA+11°C PRESSURE ALT-12 FT

// Performance equivalent Operating here right now feels like operating at LPCB (Aerodromo de Castelo Branco, Castelo Branco, elev 1,300 ft) on a standard ISA day.

// Aircraft performance impact MODERATE

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+13%

-9%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+9%

-6%

Light jetCJ4, Phenom 300, M2

+5%

-4%

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 · 1 reported · highest to lowest

// Reported layers (highest → lowest)

FEW030

Few · base 3,000 ft AGL · ~1–2 oktas

// Computed

CEILING— HIGHEST LAYER3,000 ft TOTAL COVERAGE~15% (sparse) FREEZING LEVEL13,142 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC-1)

05:59ZSUNRISE

12:39ZSOLAR NOON

19:19ZSUNSET

19:47ZCIVIL END

CURRENT18:10Z DAYLIGHT REMAINING1h 08m VFR NIGHT BEGINS19:47Z (1h 36m) DAY LENGTH13h 19m

Waxing Gibbous

ILLUMINATION94% MOONRISE16:06Z MOONSET05:25Z FULL MOON IN2 days

// Nearest reporting stations

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

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