// Station · 18m ago

LFRN

Rennes-Saint-Jacques Airport

CAT VFR

WIND 210° / 11 kt

VIS 6+ SM

CEILING CLR

T/Td 24°C / 14°C

ALTIM 29.83 inHg

ELEV 124 FT

48.0695°N / 1.7348°W

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

WIND

210°11 kt

LFRN · 124 FT

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

METRIC

NOW · 16Z

+6H

+12H

+18H

WIND

210°/11

VIS

6+ SM

CEILING

CLR

LAYERS

—

T / Td

24 / 14

ALTIM

29.83"

// Interpretation

VFR with moderate winds at 210°/11 kt. Visibility 6+ SM and no reported cloud layers. 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 LFRN 251600Z AUTO 21011KT 190V250 CAVOK 24/14 Q1010 NOSIG

LFRN · day 25 at 16:00 UTC · wind from 210° at 11 kt · visibility 6+ SM · temp 24°C / dewpoint 14°C · altimeter 29.83" Hg

// Runway analysis · computed from current METAR wind

Wind 210° @ 11 kt

2 USABLE · 2 AVOID · 2 CAUTION

WIND

210°11 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 2 usable

28★ HDG 280° H4 kt X10 kt LEFT PRIMARY · 6,890'

14 HDG 140° H4 kt X10 kt RIGHT ⚠ HIGH XW · 91%

TAILWIND ENDS · AVOID 2 ends

10 HDG 100° T4 kt X10 kt RIGHT —

32 HDG 320° T4 kt X10 kt LEFT —

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 +9°C

1,400FT

+1,276 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV124 FT OAT+24°C ISA DELTA+9°C PRESSURE ALT219 FT

// Performance equivalent Operating here right now feels like operating at LFBL (Limoges Airport, Limoges/Bellegarde, elev 1,300 ft) on a standard ISA day.

// Aircraft performance impact MODERATE

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+14%

-10%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+10%

-6%

Light jetCJ4, Phenom 300, M2

+6%

-4%

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 · clear · no layers reported

// Reported layers (highest → lowest)

CLR

No reported cloud layers — clear sky from surface to reporting ceiling.

// Computed

CEILING— HIGHEST LAYER— TOTAL COVERAGEclear FREEZING LEVEL12,245 ft VFR MARGINunlimited

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

05:16ZSUNRISE

12:10ZSOLAR NOON

19:04ZSUNSET

19:37ZCIVIL END

CURRENT16:18Z DAYLIGHT REMAINING2h 46m VFR NIGHT BEGINS19:37Z (3h 19m) DAY LENGTH13h 48m

Waxing Gibbous

ILLUMINATION94% MOONRISE15:18Z MOONSET05:07Z FULL MOON IN2 days

// Nearest reporting stations

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

AIRSPACE

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