// Station · 15m ago

KGRR

Gerald R. Ford International Airport

CAT VFR

WIND CALM

VIS 10+ SM

CEILING Few/scattered only

T/Td 18.9°C / 13.9°C

ALTIM 30.16 inHg

ELEV 794 FT

42.8808°N / 85.5228°W

LOCATION · Grand Rapids, US

WIND

000°0 kt

KGRR · 794 FT

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

METRIC

NOW · 13Z

+6H

+12H

+18H

WIND

CALM

VIS

10+ SM

CEILING

—

LAYERS

SCT200 SCT250

T / Td

19 / 14

ALTIM

30.16"

// Interpretation

VFR with winds calm. Visibility better than 10 statute miles and scattered at 20,000 ft, and scattered 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 KGRR 251353Z 00000KT 10SM SCT200 SCT250 19/14 A3016 RMK AO2 SLP213 T01890139

KGRR · day 25 at 13:53 UTC · winds calm · visibility 10+ SM · scattered layer at 20,000 ft · scattered layer at 25,000 ft · temp 19°C / dewpoint 14°C · altimeter 30.16" Hg · automated station w/ precipitation discriminator · sea-level pressure 1021.3 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 6 ends

08R HDG 080° —CALM —— 10,001'

26L HDG 260° —CALM —— 10,001'

17 HDG 170° —CALM —— 8,501'

35 HDG 350° —CALM —— 8,501'

08L HDG 080° —CALM —— 5,001'

26R HDG 260° —CALM —— 5,001'

Pattern altitude: 1,794 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 +5°C

1,200FT

+406 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV794 FT OAT+19°C ISA DELTA+5°C PRESSURE ALT552 FT

// Performance equivalent Operating here right now feels like operating at KIMT (Ford Airport, Kingsford, elev 1,182 ft) on a standard ISA day.

// Aircraft performance impact MINOR

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)

SCT250

Scattered · base 25,000 ft AGL · ~3–4 oktas

SCT200

Scattered · base 20,000 ft AGL · ~3–4 oktas

// Computed

CEILING— HIGHEST LAYER25,000 ft TOTAL COVERAGE~48% (mixed) FREEZING LEVEL10,339 ft VFR MARGINunlimited

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

11:00ZSUNRISE

17:45ZSOLAR NOON

00:30ZSUNSET

01:00ZCIVIL END

CURRENT14:08Z DAYLIGHT REMAINING10h 22m VFR NIGHT BEGINS01:00Z (10h 52m) DAY LENGTH13h 30m

Waxing Gibbous

ILLUMINATION93% MOONRISE20:58Z MOONSET10:29Z 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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