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// Station · 6h 11m ago · STALE · HARD STALE

CYFS

Fort Simpson Airport
CAT MVFR
WIND 110° / 4 kt
VIS 3.0 SM
CEILING BKN at 25,000 ft
T/Td 10°C / 8°C
ALTIM 30.06 inHg
WX FU
ELEV 555 FT
61.7602°N / 121.2370°W
LOCATION · Fort Simpson, CA
N
WIND
110°4 kt
CYFS · 555 FT
© OSM · CartoDB

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

METRIC
NOW · 12Z
+6H
+12H
+18H
WIND
110°/4
 
 
 
VIS
3.0 SM
 
 
 
CEILING
BKN250
 
 
 
LAYERS
BKN250
 
 
 
T / Td
10 / 8
 
 
 
ALTIM
30.06"
 
 
 

// Interpretation

MVFR — visibility 3.0 SM. Light winds at 110°/4 kt, visibility 3.0 SM, broken at 25,000 ft. Reported weather: smoke (FU). Smoke aloft is most often wildfire smoke drifting into the area — fine particulates that scatter light and cut visibility even though the air itself stays dry, so it behaves differently from moisture-based mist or 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 CYFS 251200Z CCA 11004KT 070V170 3SM FU BKN250 10/08 A3006 RMK CI2 LST STFD OVS SLP188

CYFS · day 25 at 12:00 UTC · wind from 110° at 4 kt · visibility 3.0 SM · broken layer at 25,000 ft · temp 10°C / dewpoint 8°C · altimeter 30.06" Hg · weather: smoke (FU) · sea-level pressure 1018.8 mb

// Runway analysis · computed from current METAR wind

Wind 110° @ 4 kt
ALL USABLE · WINDS CALM
N
WIND
110°4 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
ALL RUNWAYS · CALM WINDS 2 ends
14 HDG 140° CALM 6,000'
32 HDG 320° CALM 6,000'
Pattern altitude: 1,555 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 -4°C

-100FT
-655 FT BELOW FIELD ELEV
// DA · LAST 24 HOURS loading…
FIELD ELEV555 FT OAT+10°C ISA DELTA-4°C PRESSURE ALT413 FT
// Performance equivalent Operating here right now feels like operating at CYPC (Paulatuk (Nora Aliqatchialuk Ruben) Airport, Paulatuk, elev 15 ft) on a standard ISA day.
// 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 · 1 reported · highest to lowest

FT 0 5k 10k 15k 20k 25k FRZ LVL · 5,606 FT BKN250 · CEILING CYFS ELEV · 555 FT
// Reported layers (highest → lowest)
BKN250
Broken · base 25,000 ft AGL · ~5–7 oktas
// Computed
CEILING25,000 ft AGL HIGHEST LAYER25,000 ft TOTAL COVERAGE~75% (mostly covered) FREEZING LEVEL5,606 ft VFR MARGIN+22,000 ft

// Sun & Moon · times in Z · bar = local day (UTC-8)

12:38ZSUNRISE
20:08ZSOLAR NOON
03:38ZSUNSET
04:29ZCIVIL END
CURRENT18:11Z DAYLIGHT REMAINING9h 26m VFR NIGHT BEGINS04:29Z (10h 17m) DAY LENGTH15h 00m
Waxing Gibbous
ILLUMINATION94% MOONRISE22:44Z MOONSET13:44Z FULL MOON IN2 days

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