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// Station · 22m ago

CYMH

Mary's Harbour Airport
CAT VFR
WIND 050° / 6 kt
VIS 9.0 SM
CEILING Few/scattered only
T/Td 15°C / 10°C
ALTIM 29.82 inHg
ELEV 38 FT
52.3028°N / 55.8474°W
LOCATION · Mary's Harbour, CA
N
WIND
050°6 kt
CYMH · 38 FT
© OSM · CartoDB

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

METRIC
NOW · 17Z
+6H
+12H
+18H
WIND
050°/6
 
 
 
VIS
9.0 SM
 
 
 
CEILING
 
 
 
LAYERS
FEW140
 
 
 
T / Td
15 / 10
 
 
 
ALTIM
29.82"
 
 
 

// Interpretation

VFR with light winds at 050°/6 kt. Visibility 9.0 SM and a few at 14,000 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 CYMH 111700Z AUTO 05006KT 020V090 9SM FEW140 15/10 A2982 RMK SLP100

CYMH · day 11 at 17:00 UTC · wind from 050° at 6 kt · visibility 9.0 SM · a few clouds at 14,000 ft · temp 15°C / dewpoint 10°C · altimeter 29.82" Hg · sea-level pressure 1010.0 mb

// Runway analysis · computed from current METAR wind

Wind 050° @ 6 kt
1 USABLE · 1 AVOID
N
WIND
050°6 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
HEADWIND ENDS 1 usable
11 HDG 110° H3 kt X5 kt LEFT PRIMARY · 2,500'
TAILWIND ENDS · AVOID 1 ends
29 HDG 290° T3 kt X5 kt RIGHT
Pattern altitude: 1,038 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 +0°C

200FT
+162 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS ↘ -1,100 FT
1,600 550 -500
24h AGO18h12h6hNOW
FIELD ELEV38 FT OAT+15°C ISA DELTA+0°C PRESSURE ALT136 FT
// Performance equivalent Operating here right now feels like operating at CCD4 (Postville Airport, Postville, elev 193 ft) on a standard ISA day.
// Aircraft performance impact MINOR
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+2%
-1%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+1%
-1%
Light jetCJ4, Phenom 300, M2
+1%
-1%

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 · 1 reported · highest to lowest

FT 0 5k 10k 15k 20k 25k FRZ LVL · 7,614 FT FEW140 CYMH ELEV · 38 FT
// Reported layers (highest → lowest)
FEW140
Few · base 14,000 ft AGL · ~1–2 oktas
// Computed
CEILING HIGHEST LAYER14,000 ft TOTAL COVERAGE~15% (sparse) FREEZING LEVEL7,614 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC-4)

07:36ZSUNRISE
15:49ZSOLAR NOON
00:03ZSUNSET
00:50ZCIVIL END
CURRENT17:22Z DAYLIGHT REMAINING6h 41m VFR NIGHT BEGINS00:50Z (7h 28m) DAY LENGTH16h 27m
Waning Crescent
ILLUMINATION10% MOONRISE05:06Z MOONSET21:34Z FULL MOON IN18 days

// Nearest reporting stations · 1 shown · 60 NM radius

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

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