// Station · 12m ago

LSMP

Payerne Air Base

CAT —

WIND 210° / 3 kt

VIS —

CEILING CLR

T/Td 5°C / 5°C

ALTIM 30.27 inHg

ELEV 1,465 FT

46.8432°N / 6.9151°E

LOCATION · Payerne, CH

WIND

210°3 kt

LSMP · 1,465 FT

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

METRIC

NOW · 00Z

+6H

+12H

+18H

WIND

210°/3

VIS

—

CEILING

CLR

LAYERS

—

T / Td

5 / 5

ALTIM

30.27"

// Interpretation

VFR with light winds at 210°/3 kt. Visibility unreported 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 LSMP 130050Z AUTO 21003KT 180V240 9999NDV NCD 05/05 Q1025 RMK

LSMP · day 13 at 00:50 UTC · wind from 210° at 3 kt · temp 5°C / dewpoint 5°C · altimeter 30.27" Hg

// Runway analysis · computed from current METAR wind

Wind 210° @ 3 kt

ALL USABLE · WINDS CALM

WIND

210°3 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 2 ends

05 HDG 050° —CALM —— 9,376'

23 HDG 230° —CALM —— 9,376'

Pattern altitude: 2,465 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

200FT

-1,265 FT BELOW FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV1,465 FT OAT+5°C ISA DELTA-8°C PRESSURE ALT1,117 FT

// Performance equivalent Operating here right now feels like operating at LSZL (Locarno Airport, Locarno, elev 650 ft) on a standard ISA day.

// Aircraft performance impact ENHANCED

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+2%

-1%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+1%

-1%

Light jetCJ4, Phenom 300, M2

+1%

-1%

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 LEVEL3,990 ft VFR MARGINunlimited

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

05:48ZSUNRISE

11:19ZSOLAR NOON

16:51ZSUNSET

17:22ZCIVIL END

CURRENT01:02Z DAYLIGHT REMAINING15h 48m VFR NIGHT BEGINS17:22Z (16h 19m) DAY LENGTH11h 03m

Waxing Crescent

ILLUMINATION3% MOONRISE07:08Z MOONSET18:12Z 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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