// Station · 18m ago

MMSP

Ponciano Arriaga International Airport

CAT VFR

WIND CALM

VIS 8.0 SM

CEILING Few/scattered only

T/Td 20°C / 15°C

ALTIM 30.24 inHg

ELEV 6,035 FT

22.2620°N / 100.9357°W

LOCATION · San Luis Potosí, MX

WIND

000°0 kt

MMSP · 6,035 FT

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

METRIC

NOW · 00Z

+6H

+12H

+18H

WIND

CALM

VIS

8.0 SM

CEILING

—

LAYERS

FEW210

T / Td

20 / 15

ALTIM

30.24"

// Interpretation

VFR with winds calm. Visibility 8.0 SM and a few at 21,000 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 MMSP 130045Z 00000KT 8SM FEW210 20/15 A3024 RMK 8/001 SC

MMSP · day 13 at 00:45 UTC · winds calm · visibility 8.0 SM · a few clouds at 21,000 ft · temp 20°C / dewpoint 15°C · altimeter 30.24" Hg

// Runway analysis · computed from current METAR wind

Wind CALM

ALL USABLE · WINDS CALM

WIND

000°calm

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 4 ends

14 HDG 140° —CALM —— 9,867'

32 HDG 320° —CALM —— 9,867'

04 HDG 040° —CALM —— 3,259'

22 HDG 220° —CALM —— 3,259'

Pattern altitude: 7,035 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 +16°C

7,700FT

+1,665 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV6,035 FT OAT+20°C ISA DELTA+16°C PRESSURE ALT5,713 FT

// Performance equivalent Operating here right now feels like operating at MMSM (Felipe Ángeles International Airport, Mexico City, elev 7,369 ft) on a standard ISA day.

// Aircraft performance impact MODERATE

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+77%

-54%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+54%

-35%

Light jetCJ4, Phenom 300, M2

+31%

-23%

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)

FEW210

Few · base 21,000 ft AGL · ~1–2 oktas

// Computed

CEILING— HIGHEST LAYER21,000 ft TOTAL COVERAGE~15% (sparse) FREEZING LEVEL16,136 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC-7)

12:39ZSUNRISE

18:31ZSOLAR NOON

00:22ZSUNSET

00:45ZCIVIL END

CURRENT01:03Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS00:45Z (past) DAY LENGTH11h 42m

Waxing Crescent

ILLUMINATION3% MOONRISE14:00Z MOONSET01:43Z 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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