// Station · 9h 3m ago · STALE · HARD STALE

LPAR

Alverca Air Base

CAT VFR

WIND 320° / 8 kt

VIS 6+ SM

CEILING CLR

T/Td 25°C / 13°C

ALTIM 30.09 inHg

ELEV 11 FT

38.8833°N / 9.0301°W

LOCATION · Vila Franca de Xira, PT

WIND

320°8 kt

LPAR · 11 FT

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

METRIC

NOW · 16Z

+6H

+12H

+18H

WIND

320°/8

VIS

6+ SM

CEILING

CLR

LAYERS

—

T / Td

25 / 13

ALTIM

30.09"

// Interpretation

VFR with moderate winds at 320°/8 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 LPAR 121600Z 32008KT 260V030 CAVOK 25/13 Q1019

LPAR · day 12 at 16:00 UTC · wind from 320° at 8 kt · visibility 6+ SM · temp 25°C / dewpoint 13°C · altimeter 30.09" Hg

// Runway analysis · computed from current METAR wind

Wind 320° @ 8 kt

1 USABLE · 1 AVOID · 1 CAUTION

WIND

320°8 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 1 usable

04★ HDG 040° H1 kt X8 kt LEFT PRIMARY · 9,810'

TAILWIND ENDS · AVOID 1 ends

22 HDG 220° T1 kt X8 kt RIGHT —

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 +10°C

1,000FT

+989 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV11 FT OAT+25°C ISA DELTA+10°C PRESSURE ALT-160 FT

// Performance equivalent Operating here right now feels like operating at LPEV (Évora Airfield, Évora, elev 807 ft) on a standard ISA day.

// Aircraft performance impact MINOR

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+10%

-7%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+7%

-5%

Light jetCJ4, Phenom 300, M2

+4%

-3%

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 LEVEL12,637 ft VFR MARGINunlimited

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

06:44ZSUNRISE

12:23ZSOLAR NOON

18:02ZSUNSET

18:29ZCIVIL END

CURRENT01:03Z DAYLIGHT REMAINING16h 59m VFR NIGHT BEGINS18:29Z (17h 26m) DAY LENGTH11h 18m

Waxing Crescent

ILLUMINATION3% MOONRISE08:05Z MOONSET19:23Z 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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