// Station · 18m ago

GLRB

Roberts International Airport

CAT MVFR

WIND 240° / 4 kt

VIS 6+ SM

CEILING BKN at 1,200 ft

T/Td 25°C / 25°C

ALTIM 29.91 inHg

ELEV 31 FT

6.2338°N / 10.3623°W

LOCATION · Monrovia, LR

WIND

240°4 kt

GLRB · 31 FT

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

METRIC

NOW · 22Z

+6H

+12H

+18H

WIND

240°/4

VIS

6+ SM

CEILING

BKN012

LAYERS

BKN012 FEW023

T / Td

25 / 25

ALTIM

29.91"

// Interpretation

MVFR — ceiling 1,200 ft. Light winds at 240°/4 kt, visibility 6+ SM, broken at 1,200 ft, and a few at 2,300 ft. Would drop to IFR below 1,000 ft ceiling or 3 SM visibility, or rise back to VFR above 3,000 ft and 5 SM.

Loading TAF forecast narrative…

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

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// Raw observation METAR string + decoded

METAR GLRB 252200Z 24004KT 9999 BKN012 FEW023CB 25/25 Q1013 NOSIG CB/SW-NW

GLRB · day 25 at 22:00 UTC · wind from 240° at 4 kt · visibility 6+ SM · broken layer at 1,200 ft · a few clouds at 2,300 ft · temp 25°C / dewpoint 25°C · altimeter 29.91" Hg

// Runway analysis · computed from current METAR wind

Wind 240° @ 4 kt

ALL USABLE · WINDS CALM

WIND

240°4 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 2 ends

04 HDG 040° —CALM —— 11,000'

22 HDG 220° —CALM —— 11,000'

Pattern altitude: 1,031 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 +10°C

1,200FT

+1,169 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV31 FT OAT+25°C ISA DELTA+10°C PRESSURE ALT37 FT

// Performance equivalent Your aircraft will perform as if it's at a field 1,200 ft high on a standard ISA day — that's +1,169 ft above GLRB's actual elevation.

// Aircraft performance impact MODERATE

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+12%

-8%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+8%

-5%

Light jetCJ4, Phenom 300, M2

+5%

-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 · 2 reported · highest to lowest

// Reported layers (highest → lowest)

FEW023

Few · base 2,300 ft AGL · ~1–2 oktas

BKN012

Broken · base 1,200 ft AGL · ~5–7 oktas

// Computed

CEILING1,200 ft AGL HIGHEST LAYER2,300 ft TOTAL COVERAGE~83% (mostly covered) FREEZING LEVEL12,657 ft VFR MARGIN-1,800 ft

// Sun & Moon · times in Z · bar = local day (UTC-1)

06:36ZSUNRISE

12:45ZSOLAR NOON

18:53ZSUNSET

19:14ZCIVIL END

CURRENT22:18Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS19:14Z (past) DAY LENGTH12h 16m

Waxing Gibbous

ILLUMINATION95% MOONRISE16:51Z MOONSET05:08Z FULL MOON IN2 days

// Nearest reporting stations

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

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