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// Station · 30m ago

EFHA

Halli Airport
CAT VFR
WIND 020° / 6 kt
VIS 6+ SM
CEILING CLR
T/Td 26°C / 14°C
ALTIM 30.06 inHg
ELEV 479 FT
61.8560°N / 24.7867°E
LOCATION · Jämsä, FI
N
WIND
020°6 kt
EFHA · 479 FT
© OSM · CartoDB

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

METRIC
NOW · 13Z
+6H
+12H
+18H
WIND
020°/6
 
 
 
VIS
6+ SM
 
 
 
CEILING
CLR
 
 
 
LAYERS
 
 
 
T / Td
26 / 14
 
 
 
ALTIM
30.06"
 
 
 

// Interpretation

VFR with light winds at 020°/6 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 111350Z AUTO 02006KT 330V070 CAVOK 26/14 Q1018

EFHA · day 11 at 13:50 UTC · wind from 020° at 6 kt · visibility 6+ SM · temp 26°C / dewpoint 14°C · altimeter 30.06" Hg

// Runway analysis · computed from current METAR wind

Wind 020° @ 6 kt
1 USABLE · 1 AVOID
N
WIND
020°6 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
HEADWIND ENDS 1 usable
08 HDG 080° H3 kt X5 kt LEFT PRIMARY · 8,533'
TAILWIND ENDS · AVOID 1 ends
26 HDG 260° T3 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 +12°C

1,700FT
+1,221 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS ↗ +300 FT
2,000 850 -300
24h AGO18h12h6hNOW
FIELD ELEV479 FT OAT+26°C ISA DELTA+12°C PRESSURE ALT337 FT
// Performance equivalent Your aircraft will perform as if it's at a field 1,700 ft high on a standard ISA day — that's +1,221 ft above EFHA's actual elevation.
// Aircraft performance impact MINOR
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+17%
-12%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+12%
-8%
Light jetCJ4, Phenom 300, M2
+7%
-5%

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.

// Cloud layers · clear · no layers reported

FT 0 5k 10k 15k 20k 25k FRZ LVL · 13,610 FT EFHA ELEV · 479 FT
// Reported layers (highest → lowest)
CLR
No reported cloud layers — clear sky from surface to reporting ceiling.
// Computed
CEILING HIGHEST LAYER TOTAL COVERAGEclear FREEZING LEVEL13,610 ft VFR MARGINunlimited

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

00:57ZSUNRISE
10:27ZSOLAR NOON
19:57ZSUNSET
22:21ZCIVIL END
CURRENT14:20Z DAYLIGHT REMAINING5h 36m VFR NIGHT BEGINS22:21Z (8h 00m) DAY LENGTH19h 00m
Waning Crescent
ILLUMINATION11% MOONRISE22:21Z MOONSET17:21Z FULL MOON IN18 days

// Nearest reporting stations · 5 shown · 100 NM (sparse area)

// Area map · 100 NM radius · CartoDB Dark Matter + aeronautical overlay

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