// Station · 7m ago

LFRN

Rennes-Saint-Jacques Airport

CAT IFR

WIND 190° / 4 kt

VIS 6+ SM

CEILING OVC at 500 ft

T/Td 17°C / 17°C

ALTIM 30.12 inHg

ELEV 124 FT

48.0695°N / 1.7348°W

LOCATION · Saint-Jacques-de-la-Lande, Ille-et-Vilaine, FR

WIND

190°4 kt

LFRN · 124 FT

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

METRIC

NOW · 01Z

+6H

+12H

+18H

WIND

190°/4

VIS

6+ SM

CEILING

OVC005

LAYERS

OVC005

T / Td

17 / 17

ALTIM

30.12"

// Interpretation

IFR conditions — ceiling 500 ft. Light winds at 190°/4 kt, visibility 6+ SM, overcast at 500 ft. Would deteriorate to LIFR below 500 ft ceiling or 1 SM, or improve to MVFR above 1,000 ft and 3 SM.

Loading TAF forecast narrative…

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

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// Raw observation METAR string + decoded

METAR LFRN 130100Z AUTO 19004KT 160V220 9999 OVC005 17/17 Q1020 TEMPO 0700 FG VV///

LFRN · day 13 at 01:00 UTC · wind from 190° at 4 kt · visibility 6+ SM · overcast at 500 ft · temp 17°C / dewpoint 17°C · altimeter 30.12" Hg

// Runway analysis · computed from current METAR wind

Wind 190° @ 4 kt

ALL USABLE · WINDS CALM

WIND

190°4 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 4 ends

10 HDG 100° —CALM —— 6,890'

28 HDG 280° —CALM —— 6,890'

14 HDG 140° —CALM —— 2,788'

32 HDG 320° —CALM —— 2,788'

Pattern altitude: 1,124 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 +2°C

100FT

-24 FT BELOW FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV124 FT OAT+17°C ISA DELTA+2°C PRESSURE ALT-77 FT

// Performance equivalent Operating here right now feels like operating at LFEC (Ouessant Airport, Ushant, elev 142 ft) on a standard ISA day.

// Aircraft performance impact ENHANCED

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+1%

-1%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+1%

-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

// Reported layers (highest → lowest)

OVC005

Overcast · base 500 ft AGL · 8 oktas

// Computed

CEILING500 ft AGL HIGHEST LAYER500 ft TOTAL COVERAGE~100% (overcast) FREEZING LEVEL8,710 ft VFR MARGIN-2,500 ft

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

06:23ZSUNRISE

11:54ZSOLAR NOON

17:24ZSUNSET

17:56ZCIVIL END

CURRENT01:07Z DAYLIGHT REMAINING16h 17m VFR NIGHT BEGINS17:56Z (16h 48m) DAY LENGTH11h 00m

Waxing Crescent

ILLUMINATION3% MOONRISE07:45Z MOONSET18:45Z FULL MOON IN13 days

// Nearest reporting stations

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

AIRSPACE

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