// Station · 4d ago · STALE · HARD STALE

CZEM

Eastmain River Airport

CAT MVFR

WIND 280° / 14 kt G21

VIS 10+ SM

CEILING BKN at 1,300 ft

T/Td 6°C / 4°C

ALTIM 29.58 inHg

WX -RA

ELEV 24 FT

52.2264°N / 78.5225°W

LOCATION · Eastmain River, CA

WIND

280°14 kt

CZEM · 24 FT

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

METRIC

NOW · 20Z

+6H

+12H

+18H

WIND

280°/14G21

VIS

10+ SM

CEILING

BKN013

LAYERS

BKN013 OVC035

T / Td

6 / 4

ALTIM

29.58"

// Interpretation

MVFR — ceiling 1,300 ft. Brisk winds at 280°/14 kt, gusting 21, visibility better than 10 statute miles, broken at 1,300 ft, and overcast at 3,500 ft. Reported weather: light rain (-RA). 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.

Loading TAF forecast narrative…

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

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// Raw observation METAR string + decoded

METAR CZEM 082000Z 28014G21KT 12SM -RA BKN013 OVC035 06/04 A2958 RMK SC6SC2 LAST STFD OBS/NEXT 111300 UTC SLP020

CZEM · day 8 at 20:00 UTC · wind from 280° at 14 kt, gusts to 21 kt · visibility 10+ SM · broken layer at 1,300 ft · overcast at 3,500 ft · temp 6°C / dewpoint 4°C · altimeter 29.58" Hg · weather: light rain (-RA) · sea-level pressure 1002.0 mb

// Runway analysis · computed from current METAR wind

Wind 280° @ 14 ktG21

1 USABLE · 1 AVOID · 1 CAUTION

WIND

280°14G21 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 1 usable

20★ HDG 200° H2 kt X14 kt RIGHT PRIMARY · 3,512'

TAILWIND ENDS · AVOID 1 ends

02 HDG 020° T2 kt X14 kt LEFT —

Pattern altitude: 1,024 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 -8°C

-600FT

-624 FT BELOW FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV24 FT OAT+6°C ISA DELTA-8°C PRESSURE ALT361 FT

// Performance equivalent Your aircraft will perform as if it's at a field -600 ft high on a standard ISA day — that's -624 ft above CZEM's actual elevation.

// 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 · 2 reported · highest to lowest

// Reported layers (highest → lowest)

OVC035

Overcast · base 3,500 ft AGL · 8 oktas

BKN013

Broken · base 1,300 ft AGL · ~5–7 oktas

// Computed

CEILING1,300 ft AGL HIGHEST LAYER3,500 ft TOTAL COVERAGE~100% (overcast) FREEZING LEVEL3,054 ft VFR MARGIN-1,700 ft

// Sun & Moon · times in Z · bar = local day (UTC-5)

11:34ZSUNRISE

17:01ZSOLAR NOON

22:28ZSUNSET

23:02ZCIVIL END

CURRENT01:06Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS23:02Z (past) DAY LENGTH10h 53m

Waxing Crescent

ILLUMINATION3% MOONRISE12:55Z MOONSET23:49Z FULL MOON IN13 days

// Nearest reporting stations

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

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