// Station · 14m ago

LFRZ

Saint-Nazaire-Montoir Airport

CAT VFR

WIND 200° / 9 kt

VIS 6+ SM

CEILING OVC at 17,000 ft

T/Td 21°C / 17°C

ALTIM 29.85 inHg

ELEV 13 FT

47.3114°N / 2.1526°W

LOCATION · Saint-Nazaire/Montoir, FR

WIND

200°9 kt

LFRZ · 13 FT

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

METRIC

NOW · 18Z

+6H

+12H

+18H

WIND

200°/9

VIS

6+ SM

CEILING

OVC170

LAYERS

FEW022 SCT150 OVC170

T / Td

21 / 17

ALTIM

29.85"

// Interpretation

VFR — ceiling 17,000 ft. Moderate winds at 200°/9 kt, visibility 6+ SM, a few at 2,200 ft, scattered at 15,000 ft, and overcast at 17,000 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 LFRZ 251800Z AUTO 20009KT 9999 FEW022 SCT150 OVC170 21/17 Q1011 NOSIG

LFRZ · day 25 at 18:00 UTC · wind from 200° at 9 kt · visibility 6+ SM · a few clouds at 2,200 ft · scattered layer at 15,000 ft · overcast at 17,000 ft · temp 21°C / dewpoint 17°C · altimeter 29.85" Hg

// Runway analysis · computed from current METAR wind

Wind 200° @ 9 kt

1 USABLE · 1 AVOID · 1 CAUTION

WIND

200°9 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 1 usable

25★ HDG 250° H6 kt X7 kt LEFT PRIMARY · 7,874'

TAILWIND ENDS · AVOID 1 ends

07 HDG 070° T6 kt X7 kt RIGHT —

Pattern altitude: 1,013 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 +6°C

800FT

+787 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV13 FT OAT+21°C ISA DELTA+6°C PRESSURE ALT78 FT

// Performance equivalent Operating here right now feels like operating at LFOV (Laval-Entrammes Airport, Laval, Mayenne, elev 330 ft) on a standard ISA day.

// Aircraft performance impact MINOR

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+8%

-6%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+6%

-4%

Light jetCJ4, Phenom 300, M2

+3%

-2%

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

// Reported layers (highest → lowest)

OVC170

Overcast · base 17,000 ft AGL · 8 oktas

SCT150

Scattered · base 15,000 ft AGL · ~3–4 oktas

FEW022

Few · base 2,200 ft AGL · ~1–2 oktas

// Computed

CEILING17,000 ft AGL HIGHEST LAYER17,000 ft TOTAL COVERAGE~100% (overcast) FREEZING LEVEL10,619 ft VFR MARGIN+14,000 ft

// Sun & Moon · times in Z · bar = local day (UTC+0)

05:19ZSUNRISE

12:12ZSOLAR NOON

19:05ZSUNSET

19:37ZCIVIL END

CURRENT18:14Z DAYLIGHT REMAINING50m VFR NIGHT BEGINS19:37Z (1h 22m) DAY LENGTH13h 45m

Waxing Gibbous

ILLUMINATION94% MOONRISE15:25Z MOONSET05:11Z FULL MOON IN2 days

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

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