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// Station · 15m ago

CYYT

St. John's International Airport
CAT VFR
WIND 250° / 19 kt G30
VIS 10+ SM
CEILING BKN at 7,500 ft
T/Td 27°C / 21°C
ALTIM 30.04 inHg
ELEV 461 FT
47.6186°N / 52.7519°W
LOCATION · St. John's, CA
N
WIND
250°19 kt
CYYT · 461 FT
© OSM · CartoDB

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

METRIC
NOW · 16Z
+6H
+12H
+18H
WIND
250°/19G30
 
 
 
VIS
10+ SM
 
 
 
CEILING
BKN075
 
 
 
LAYERS
FEW013 SCT026 BKN075 BKN150
 
 
 
T / Td
27 / 21
 
 
 
ALTIM
30.04"
 
 
 

// Interpretation

VFR — ceiling 7,500 ft. Brisk winds at 250°/19 kt, gusting 30, visibility better than 10 statute miles, a few at 1,300 ft, scattered at 2,600 ft, broken at 7,500 ft, and broken at 15,000 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 CYYT 251600Z 25019G30KT 15SM FEW013 SCT026 BKN075 BKN150 BKN240 27/21 A3004 RMK SC1CU4AC2AC1CI1 AC TR CI TR SLP175 DENSITY ALT 1900FT

CYYT · day 25 at 16:00 UTC · wind from 250° at 19 kt, gusts to 30 kt · visibility 10+ SM · a few clouds at 1,300 ft · scattered layer at 2,600 ft · broken layer at 7,500 ft · broken layer at 15,000 ft · temp 27°C / dewpoint 21°C · altimeter 30.04" Hg · sea-level pressure 1017.5 mb

// Runway analysis · computed from current METAR wind

Wind 250° @ 19 ktG30
3 USABLE · 1 AVOID · 2 CAUTION
N
WIND
250°19G30 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
HEADWIND ENDS 3 usable
28 HDG 280° H16 kt X9 kt LEFT PRIMARY · 8,502'
16 HDG 160° H0 kt X19 kt RIGHT ⚠ HIGH XW · 63%
34 HDG 340° H0 kt X19 kt LEFT ⚠ HIGH XW · 63%
TAILWIND ENDS · AVOID 1 ends
10 HDG 100° T16 kt X9 kt RIGHT
Pattern altitude: 1,461 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

1,900FT
+1,439 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS loading…
FIELD ELEV461 FT OAT+27°C ISA DELTA+13°C PRESSURE ALT337 FT
// Performance equivalent Operating here right now feels like operating at CYWK (Wabush Airport, Wabush, elev 1,808 ft) on a standard ISA day.
// Aircraft performance impact MODERATE
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+19%
-13%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+13%
-9%
Light jetCJ4, Phenom 300, M2
+8%
-6%

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 · 4 reported · highest to lowest

FT 0 5k 10k 15k 20k 25k FRZ LVL · 14,097 FT FEW013 SCT026 BKN075 · CEILING BKN150 CYYT ELEV · 461 FT
// Reported layers (highest → lowest)
BKN150
Broken · base 15,000 ft AGL · ~5–7 oktas
BKN075
Broken · base 7,500 ft AGL · ~5–7 oktas
SCT026
Scattered · base 2,600 ft AGL · ~3–4 oktas
FEW013
Few · base 1,300 ft AGL · ~1–2 oktas
// Computed
CEILING7,500 ft AGL HIGHEST LAYER15,000 ft TOTAL COVERAGE~99% (overcast) FREEZING LEVEL14,097 ft VFR MARGIN+4,500 ft

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

08:41ZSUNRISE
15:34ZSOLAR NOON
22:27ZSUNSET
23:00ZCIVIL END
CURRENT16:15Z DAYLIGHT REMAINING6h 11m VFR NIGHT BEGINS23:00Z (6h 44m) DAY LENGTH13h 46m
Waxing Gibbous
ILLUMINATION94% MOONRISE18:43Z MOONSET08:30Z FULL MOON IN2 days

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