// Station · 23m ago

EFMA

Mariehamn Airport

CAT VFR

WIND 320° / 4 kt

VIS 6+ SM

CEILING CLR

T/Td 14°C / 12°C

ALTIM 30.21 inHg

ELEV 17 FT

60.1222°N / 19.8982°E

LOCATION · Mariehamn, FI

WIND

320°4 kt

EFMA · 17 FT

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

METRIC

NOW · 17Z

+6H

+12H

+18H

WIND

320°/4

VIS

6+ SM

CEILING

CLR

LAYERS

—

T / Td

14 / 12

ALTIM

30.21"

// Interpretation

VFR with light winds at 320°/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 EFMA 251750Z AUTO 32004KT CAVOK 14/12 Q1023

EFMA · day 25 at 17:50 UTC · wind from 320° at 4 kt · visibility 6+ SM · temp 14°C / dewpoint 12°C · altimeter 30.21" Hg

// Runway analysis · computed from current METAR wind

Wind 320° @ 4 kt

ALL USABLE · WINDS CALM

WIND

320°4 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 2 ends

03 HDG 030° —CALM —— 6,243'

21 HDG 210° —CALM —— 6,243'

Pattern altitude: 1,017 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 -2°C

-500FT

-517 FT BELOW FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV17 FT OAT+14°C ISA DELTA-2°C PRESSURE ALT-272 FT

// Performance equivalent Your aircraft will perform as if it's at a field -500 ft high on a standard ISA day — that's -517 ft above EFMA's actual elevation.

// Aircraft performance impact ENHANCED

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. 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 LEVEL7,088 ft VFR MARGINunlimited

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

03:19ZSUNRISE

10:44ZSOLAR NOON

18:09ZSUNSET

18:56ZCIVIL END

CURRENT18:13Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS18:56Z (43m) DAY LENGTH14h 50m

Waxing Gibbous

ILLUMINATION94% MOONRISE13:25Z MOONSET04:15Z FULL MOON IN2 days

// Nearest reporting stations

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

AIRSPACE

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