// Station · 18m ago

MROC

Juan Santamaría International Airport

CAT VFR

WIND 090° / 5 kt

VIS 6+ SM

CEILING BKN at 20,000 ft

T/Td 25°C / 19°C

ALTIM 30.02 inHg

ELEV 3,021 FT

9.9939°N / 84.2088°W

LOCATION · San José (Alajuela), CR

WIND

090°5 kt

MROC · 3,021 FT

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

METRIC

NOW · 14Z

+6H

+12H

+18H

WIND

090°/5

VIS

6+ SM

CEILING

BKN200

LAYERS

FEW030 SCT120 BKN200

T / Td

25 / 19

ALTIM

30.02"

// Interpretation

VFR — ceiling 20,000 ft. Light winds at 090°/5 kt, visibility 6+ SM, a few at 3,000 ft, scattered at 12,000 ft, and broken at 20,000 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 MROC 111400Z 09005KT 060V120 9999 FEW030 SCT120 BKN200 25/19 A3002 NOSIG

MROC · day 11 at 14:00 UTC · wind from 090° at 5 kt · visibility 6+ SM · a few clouds at 3,000 ft · scattered layer at 12,000 ft · broken layer at 20,000 ft · temp 25°C / dewpoint 19°C · altimeter 30.02" Hg

// Runway analysis · computed from current METAR wind

Wind 090° @ 5 kt

1 USABLE · 1 AVOID

WIND

090°5 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 1 usable

07★ HDG 070° H5 kt X2 kt RIGHT PRIMARY · 9,882'

TAILWIND ENDS · AVOID 1 ends

25 HDG 250° T5 kt X2 kt LEFT —

Pattern altitude: 4,021 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

4,800FT

+1,779 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS ↘ -200 FT

24h AGO18h12h6hNOW

FIELD ELEV3,021 FT OAT+25°C ISA DELTA+16°C PRESSURE ALT2,918 FT

// Performance equivalent Your aircraft will perform as if it's at a field 4,800 ft high on a standard ISA day — that's +1,779 ft above MROC's actual elevation.

// Aircraft performance impact SIGNIFICANT

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+48%

-34%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+34%

-22%

Light jetCJ4, Phenom 300, M2

+19%

-14%

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.

// Cloud layers · 3 reported · highest to lowest

// Reported layers (highest → lowest)

BKN200

Broken · base 20,000 ft AGL · ~5–7 oktas

SCT120

Scattered · base 12,000 ft AGL · ~3–4 oktas

FEW030

Few · base 3,000 ft AGL · ~1–2 oktas

// Computed

CEILING20,000 ft AGL HIGHEST LAYER20,000 ft TOTAL COVERAGE~91% (overcast) FREEZING LEVEL15,647 ft VFR MARGIN+17,000 ft

// Sun & Moon · times in Z · bar = local day (UTC-6)

11:23ZSUNRISE

17:43ZSOLAR NOON

00:03ZSUNSET

00:26ZCIVIL END

CURRENT14:18Z DAYLIGHT REMAINING9h 44m VFR NIGHT BEGINS00:26Z (10h 07m) DAY LENGTH12h 40m

Waning Crescent

ILLUMINATION11% MOONRISE08:47Z MOONSET21:27Z FULL MOON IN18 days

// Nearest reporting stations · 1 shown · 60 NM radius

MRPV

VFR

Tobías Bolaños International Airport · San Jose

WIND: 090° / 8 kt
VIS: 6+ SM
CEILING: BKN200
DIST: 5 NM SE
AGE: 18m ago

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

AIRSPACE

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