// Station · 15m ago

EFHA

Halli Airport

CAT VFR

WIND 360° / 5 kt

VIS 6+ SM

CEILING CLR

T/Td 2°C / 0°C

ALTIM 30.15 inHg

ELEV 479 FT

61.8560°N / 24.7867°E

LOCATION · Jämsä, FI

WIND

360°5 kt

EFHA · 479 FT

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

METRIC

NOW · 00Z

+6H

+12H

+18H

WIND

360°/5

VIS

6+ SM

CEILING

CLR

LAYERS

—

T / Td

2 / 0

ALTIM

30.15"

// Interpretation

VFR with light winds at 360°/5 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 EFHA 130050Z AUTO 36005KT CAVOK 02/00 Q1021

EFHA · day 13 at 00:50 UTC · wind from 360° at 5 kt · visibility 6+ SM · temp 2°C / dewpoint 0°C · altimeter 30.15" Hg

// Runway analysis · computed from current METAR wind

Wind 360° @ 5 kt

1 USABLE · 1 AVOID

WIND

360°5 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 1 usable

08★ HDG 080° H1 kt X5 kt LEFT PRIMARY · 8,533'

TAILWIND ENDS · AVOID 1 ends

26 HDG 260° T1 kt X5 kt RIGHT —

Pattern altitude: 1,479 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 -13°C

-1,300FT

-1,779 FT BELOW FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV479 FT OAT+2°C ISA DELTA-13°C PRESSURE ALT249 FT

// Performance equivalent Your aircraft will perform as if it's at a field -1,300 ft high on a standard ISA day — that's -1,779 ft above EFHA'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 LEVEL1,489 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC+2)

04:59ZSUNRISE

10:08ZSOLAR NOON

15:17ZSUNSET

16:01ZCIVIL END

CURRENT01:05Z DAYLIGHT REMAINING14h 11m VFR NIGHT BEGINS16:01Z (14h 56m) DAY LENGTH10h 17m

Waxing Crescent

ILLUMINATION3% MOONRISE06:20Z MOONSET16:38Z 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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