// Station · 11m ago

KMDT

Harrisburg International Airport

CAT VFR

WIND CALM

VIS 10+ SM

CEILING BKN at 25,000 ft

T/Td 15°C / 14.4°C

ALTIM 29.91 inHg

ELEV 310 FT

40.1928°N / 76.7623°W

LOCATION · Harrisburg, US

WIND

000°0 kt

KMDT · 310 FT

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

METRIC

NOW · 00Z

+6H

+12H

+18H

WIND

CALM

VIS

10+ SM

CEILING

BKN250

LAYERS

BKN250

T / Td

15 / 14

ALTIM

29.91"

// Interpretation

VFR — ceiling 25,000 ft. Winds calm, visibility better than 10 statute miles, broken at 25,000 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 KMDT 130056Z 00000KT 10SM BKN250 15/14 A2991 RMK AO2 SLP129 T01500144

KMDT · day 13 at 00:56 UTC · winds calm · visibility 10+ SM · broken layer at 25,000 ft · temp 15°C / dewpoint 14°C · altimeter 29.91" Hg · automated station w/ precipitation discriminator · sea-level pressure 1012.9 mb

// 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 2 ends

13 HDG 130° —CALM —— 10,001'

31 HDG 310° —CALM —— 10,001'

Pattern altitude: 1,310 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 +1°C

400FT

+90 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV310 FT OAT+15°C ISA DELTA+1°C PRESSURE ALT316 FT

// Performance equivalent Operating here right now feels like operating at KXLL (Allentown Queen City Municipal Airport, Allentown, elev 399 ft) on a standard ISA day.

// Aircraft performance impact ENHANCED

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+4%

-3%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+3%

-2%

Light jetCJ4, Phenom 300, M2

+2%

-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 · 1 reported · highest to lowest

// Reported layers (highest → lowest)

BKN250

Broken · base 25,000 ft AGL · ~5–7 oktas

// Computed

CEILING25,000 ft AGL HIGHEST LAYER25,000 ft TOTAL COVERAGE~75% (mostly covered) FREEZING LEVEL7,886 ft VFR MARGIN+22,000 ft

// Sun & Moon · times in Z · bar = local day (UTC-5)

11:15ZSUNRISE

16:54ZSOLAR NOON

22:33ZSUNSET

23:01ZCIVIL END

CURRENT01:07Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS23:01Z (past) DAY LENGTH11h 18m

Waxing Crescent

ILLUMINATION3% MOONRISE12:36Z MOONSET23:54Z 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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