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// Station · 11m ago

CYDF

Deer Lake Airport
CAT MVFR
WIND 230° / 7 kt
VIS 4.0 SM
CEILING BKN at 1,900 ft
T/Td 22°C / 21°C
ALTIM 29.85 inHg
WX -RA BR
ELEV 72 FT
49.2082°N / 57.3961°W
LOCATION · Deer Lake, CA
N
WIND
230°7 kt
CYDF · 72 FT
© OSM · CartoDB

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

METRIC
NOW · 18Z
+6H
+12H
+18H
WIND
230°/7
 
 
 
VIS
4.0 SM
 
 
 
CEILING
BKN019
 
 
 
LAYERS
FEW004 BKN019 OVC045
 
 
 
T / Td
22 / 21
 
 
 
ALTIM
29.85"
 
 
 

// Interpretation

MVFR — ceiling 1,900 ft. Light winds at 230°/7 kt, visibility 4.0 SM, a few at 400 ft, broken at 1,900 ft, and overcast at 4,500 ft. Reported weather: light rain and mist (-RA BR). Mist is water droplets thinning visibility to between 5/8 and 6 SM — the moist, lighter cousin of fog. Would drop to IFR below 1,000 ft ceiling or 3 SM visibility, or rise back to VFR above 3,000 ft and 5 SM.

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SOURCES · NOAA Aviation Weather Center METAR (TAF loading…)

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// Raw observation METAR string + decoded

METAR CYDF 251800Z 23007KT 4SM -RA BR FEW004 BKN019 OVC045 22/21 A2985 RMK SF2SC5SC1 SLP110 DENSITY ALT 1000FT

CYDF · day 25 at 18:00 UTC · wind from 230° at 7 kt · visibility 4.0 SM · a few clouds at 400 ft · broken layer at 1,900 ft · overcast at 4,500 ft · temp 22°C / dewpoint 21°C · altimeter 29.85" Hg · weather: light rain and mist (-RA BR) · sea-level pressure 1011.0 mb

// Runway analysis · computed from current METAR wind

Wind 230° @ 7 kt
1 USABLE · 1 AVOID
N
WIND
230°7 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
HEADWIND ENDS 1 usable
25 HDG 250° H7 kt X2 kt LEFT PRIMARY · 8,005'
TAILWIND ENDS · AVOID 1 ends
07 HDG 070° T7 kt X2 kt RIGHT
Pattern altitude: 1,072 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 +7°C

1,000FT
+928 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS loading…
FIELD ELEV72 FT OAT+22°C ISA DELTA+7°C PRESSURE ALT140 FT
// Performance equivalent Operating here right now feels like operating at CZUM (Churchill Falls Airport, Churchill Falls, elev 1,442 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 · 3 reported · highest to lowest

FT 0 5k 10k 15k 20k 25k FRZ LVL · 11,183 FT FEW004 BKN019 · CEILING OVC045 CYDF ELEV · 72 FT
// Reported layers (highest → lowest)
OVC045
Overcast · base 4,500 ft AGL · 8 oktas
BKN019
Broken · base 1,900 ft AGL · ~5–7 oktas
FEW004
Few · base 400 ft AGL · ~1–2 oktas
// Computed
CEILING1,900 ft AGL HIGHEST LAYER4,500 ft TOTAL COVERAGE~100% (overcast) FREEZING LEVEL11,183 ft VFR MARGIN-1,100 ft

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

08:57ZSUNRISE
15:53ZSOLAR NOON
22:49ZSUNSET
23:23ZCIVIL END
CURRENT18:11Z DAYLIGHT REMAINING4h 37m VFR NIGHT BEGINS23:23Z (5h 11m) DAY LENGTH13h 52m
Waxing Gibbous
ILLUMINATION94% MOONRISE19:03Z MOONSET08:55Z FULL MOON IN2 days

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