// Station · 7h 7m ago · STALE · HARD STALE

GMAT

Tan Tan Airport

CAT MVFR

WIND 020° / 17 kt

VIS 6+ SM

CEILING BKN at 1,500 ft

T/Td 21°C / 19°C

ALTIM 29.97 inHg

ELEV 653 FT

28.4476°N / 11.1617°W

LOCATION · Tan Tan, MA

WIND

020°17 kt

GMAT · 653 FT

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

METRIC

NOW · 18Z

+6H

+12H

+18H

WIND

020°/17

VIS

6+ SM

CEILING

BKN015

LAYERS

BKN015

T / Td

21 / 19

ALTIM

29.97"

// Interpretation

MVFR — ceiling 1,500 ft. Brisk winds at 020°/17 kt, visibility 6+ SM, broken at 1,500 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 GMAT 121800Z 02017KT 9999 BKN015 21/19 Q1015 NOSIG

GMAT · day 12 at 18:00 UTC · wind from 020° at 17 kt · visibility 6+ SM · broken layer at 1,500 ft · temp 21°C / dewpoint 19°C · altimeter 29.97" Hg

// Runway analysis · computed from current METAR wind

Wind 020° @ 17 kt

1 USABLE · 1 AVOID

WIND

020°17 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 1 usable

03★ HDG 030° H17 kt X3 kt LEFT PRIMARY · 6,562'

TAILWIND ENDS · AVOID 1 ends

21 HDG 210° T17 kt X3 kt RIGHT —

Pattern altitude: 1,653 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 +7°C

1,500FT

+847 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV653 FT OAT+21°C ISA DELTA+7°C PRESSURE ALT600 FT

// Performance equivalent Operating here right now feels like operating at GMMX (Marrakesh Menara Airport, Marrakesh, elev 1,545 ft) on a standard ISA day.

// Aircraft performance impact MINOR

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+15%

-11%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+11%

-7%

Light jetCJ4, Phenom 300, M2

+6%

-5%

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)

BKN015

Broken · base 1,500 ft AGL · ~5–7 oktas

// Computed

CEILING1,500 ft AGL HIGHEST LAYER1,500 ft TOTAL COVERAGE~75% (mostly covered) FREEZING LEVEL11,259 ft VFR MARGIN-1,500 ft

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

06:45ZSUNRISE

12:32ZSOLAR NOON

18:19ZSUNSET

18:42ZCIVIL END

CURRENT01:07Z DAYLIGHT REMAINING17h 11m VFR NIGHT BEGINS18:42Z (17h 35m) DAY LENGTH11h 33m

Waxing Crescent

ILLUMINATION3% MOONRISE08:06Z MOONSET19:40Z 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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