// Station · 12m ago

KHDN

Yampa Valley Airport

CAT VFR

WIND 310° / 9 kt

VIS 10+ SM

CEILING CLR

T/Td 11.1°C / 7.2°C

ALTIM 29.95 inHg

ELEV 6,606 FT

40.4812°N / 107.2180°W

LOCATION · Hayden, US

WIND

310°9 kt

KHDN · 6,606 FT

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

METRIC

NOW · 00Z

+6H

+12H

+18H

WIND

310°/9

VIS

10+ SM

CEILING

CLR

LAYERS

—

T / Td

11 / 7

ALTIM

29.95"

// Interpretation

VFR with moderate winds at 310°/9 kt. Visibility better than 10 statute miles 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 KHDN 130056Z AUTO 31009KT 10SM CLR 11/07 A2995 RMK AO2 SLP093 T01110072

KHDN · day 13 at 00:56 UTC · wind from 310° at 9 kt · visibility 10+ SM · temp 11°C / dewpoint 7°C · altimeter 29.95" Hg · automated station w/ precipitation discriminator · sea-level pressure 1009.3 mb

// Runway analysis · computed from current METAR wind

Wind 310° @ 9 kt

1 USABLE · 1 AVOID

WIND

310°9 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 1 usable

28★ HDG 280° H8 kt X4 kt RIGHT PRIMARY · 10,000'

TAILWIND ENDS · AVOID 1 ends

10 HDG 100° T8 kt X5 kt LEFT —

Pattern altitude: 7,606 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

7,700FT

+1,094 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV6,606 FT OAT+11°C ISA DELTA+9°C PRESSURE ALT6,574 FT

// Performance equivalent Operating here right now feels like operating at KGUC (Gunnison Crested Butte Regional Airport, Gunnison, elev 7,680 ft) on a standard ISA day.

// Aircraft performance impact MODERATE

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+77%

-54%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+54%

-35%

Light jetCJ4, Phenom 300, M2

+31%

-23%

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 LEVEL12,212 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC-7)

13:17ZSUNRISE

18:56ZSOLAR NOON

00:35ZSUNSET

01:02ZCIVIL END

CURRENT01:08Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS01:02Z (past) DAY LENGTH11h 17m

Waxing Crescent

ILLUMINATION3% MOONRISE14:38Z MOONSET01:56Z 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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