// Station · 11d ago · STALE · HARD STALE

KDNV

Vermilion Regional Airport

CAT —

WIND 260° / 3 kt

VIS —

CEILING —

T/Td 23°C / 23°C

ALTIM 29.99 inHg

ELEV 697 FT

40.1991°N / 87.5966°W

LOCATION · Danville, US

WIND

260°3 kt

KDNV · 697 FT

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

METRIC

NOW · 05Z

+6H

+12H

+18H

WIND

260°/3

VIS

—

CEILING

CLR

LAYERS

—

T / Td

23 / 23

ALTIM

29.99"

// Interpretation

VFR with light winds at 260°/3 kt. Visibility unreported and no reported cloud layers. 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 KDNV 170541Z AUTO 26003KT 23/23 A2999 RMK AO2

KDNV · day 17 at 05:41 UTC · wind from 260° at 3 kt · temp 23°C / dewpoint 23°C · altimeter 29.99" Hg · automated station w/ precipitation discriminator

// Runway analysis · computed from current METAR wind

Wind 260° @ 3 kt

ALL USABLE · WINDS CALM

WIND

260°3 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 4 ends

03 HDG 030° —CALM —— 6,006'

21 HDG 210° —CALM —— 6,006'

16 HDG 160° —CALM —— 3,999'

34 HDG 340° —CALM —— 3,999'

Pattern altitude: 1,697 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 +9°C

1,700FT

+1,003 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV697 FT OAT+23°C ISA DELTA+9°C PRESSURE ALT623 FT

// Performance equivalent Operating here right now feels like operating at KRKW (Rockwood Municipal Airport, Rockwood, elev 1,664 ft) on a standard ISA day.

// Aircraft performance impact MODERATE

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+17%

-12%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+12%

-8%

Light jetCJ4, Phenom 300, M2

+7%

-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 · clear · no layers reported

// Reported layers (highest → lowest)

CLR

No reported cloud layers — clear sky from surface to reporting ceiling.

// Computed

CEILING— HIGHEST LAYER— TOTAL COVERAGEclear FREEZING LEVEL12,313 ft VFR MARGINunlimited

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

11:15ZSUNRISE

17:53ZSOLAR NOON

00:30ZSUNSET

00:58ZCIVIL END

CURRENT05:15Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS00:58Z (past) DAY LENGTH13h 15m

Waning Gibbous

ILLUMINATION99% MOONRISE00:10Z MOONSET13:25Z FULL MOON IN28 days

// Nearest reporting stations

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

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