// Station · 11m ago

KNHK

Patuxent River Naval Air Station (Trapnell Field)

CAT VFR

WIND 020° / 9 kt

VIS 10+ SM

CEILING Few/scattered only

T/Td 25.6°C / 15.6°C

ALTIM 30.06 inHg

ELEV 39 FT

38.2860°N / 76.4118°W

LOCATION · Patuxent River, US

WIND

020°9 kt

KNHK · 39 FT

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

METRIC

NOW · 16Z

+6H

+12H

+18H

WIND

020°/9

VIS

10+ SM

CEILING

—

LAYERS

FEW046

T / Td

26 / 16

ALTIM

30.06"

// Interpretation

VFR with moderate winds at 020°/9 kt. Visibility better than 10 statute miles and a few at 4,600 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 KNHK 251652Z 02009KT 10SM FEW046 26/16 A3006 RMK AO2 SLP180 T02560156 $

KNHK · day 25 at 16:52 UTC · wind from 020° at 9 kt · visibility 10+ SM · a few clouds at 4,600 ft · temp 26°C / dewpoint 16°C · altimeter 30.06" Hg · automated station w/ precipitation discriminator · sea-level pressure 1018.0 mb

// Runway analysis · computed from current METAR wind

Wind 020° @ 9 kt

3 USABLE · 3 AVOID · 2 CAUTION

WIND

020°9 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 3 usable

02★ HDG 020° H9 kt X0 kt — PRIMARY · 5,021'

06 HDG 060° H7 kt X6 kt LEFT ⚠ HIGH XW · 67%

32 HDG 320° H5 kt X8 kt RIGHT ⚠ HIGH XW · 89%

TAILWIND ENDS · AVOID 3 ends

14 HDG 140° T4 kt X8 kt LEFT —

24 HDG 240° T7 kt X6 kt RIGHT —

20 HDG 200° T9 kt X0 kt — —

Pattern altitude: 1,039 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

1,100FT

+1,061 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV39 FT OAT+26°C ISA DELTA+10°C PRESSURE ALT-103 FT

// Performance equivalent Operating here right now feels like operating at KDMW (Carroll County Regional Jack B Poage Field, Westminster, elev 789 ft) on a standard ISA day.

// Aircraft performance impact MODERATE

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+11%

-8%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+8%

-5%

Light jetCJ4, Phenom 300, M2

+4%

-3%

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)

FEW046

Few · base 4,600 ft AGL · ~1–2 oktas

// Computed

CEILING— HIGHEST LAYER4,600 ft TOTAL COVERAGE~15% (sparse) FREEZING LEVEL12,968 ft VFR MARGINunlimited

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

10:30ZSUNRISE

17:09ZSOLAR NOON

23:48ZSUNSET

00:15ZCIVIL END

CURRENT17:03Z DAYLIGHT REMAINING6h 44m VFR NIGHT BEGINS00:15Z (7h 11m) DAY LENGTH13h 17m

Waxing Gibbous

ILLUMINATION94% MOONRISE20:34Z MOONSET09:52Z FULL MOON IN2 days

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

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