// Station · 11m ago

CYAH

La Grande-4 Airport

CAT VFR

WIND VRB / 2 kt

VIS 7.0 SM

CEILING OVC at 8,700 ft

T/Td 7°C / 7°C

ALTIM 29.77 inHg

ELEV 1,005 FT

53.7547°N / 73.6753°W

LOCATION · La Grande-4, CA

WIND

VRB2 kt

CYAH · 1,005 FT

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

METRIC

NOW · 09Z

+6H

+12H

+18H

WIND

VRB/2

VIS

7.0 SM

CEILING

OVC087

LAYERS

FEW009 SCT055 OVC087

T / Td

7 / 7

ALTIM

29.77"

// Interpretation

VFR — ceiling 8,700 ft. Light winds at variable/2 kt, visibility 7.0 SM, a few at 900 ft, scattered at 5,500 ft, and overcast at 8,700 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

SPECI CYAH 270939Z AUTO VRB02KT 7SM FEW009 SCT055 OVC087 07/07 A2977 RMK SLP096

CYAH · day 27 at 09:39 UTC · wind variable at 2 kt · visibility 7.0 SM · a few clouds at 900 ft · scattered layer at 5,500 ft · overcast at 8,700 ft · temp 7°C / dewpoint 7°C · altimeter 29.77" Hg · sea-level pressure 1009.6 mb

// Runway analysis · computed from current METAR wind

Wind VRB @ 2 kt

ALL USABLE · WINDS CALM

WIND

VRB2 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 2 ends

09 HDG 090° —CALM —— 5,000'

27 HDG 270° —CALM —— 5,000'

Pattern altitude: 2,005 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 -6°C

500FT

-505 FT BELOW FIELD ELEV

// DA · LAST 24 HOURS ↘ -100 FT

24h AGO18h12h6hNOW

FIELD ELEV1,005 FT OAT+7°C ISA DELTA-6°C PRESSURE ALT1,153 FT

// Performance equivalent Operating here right now feels like operating at CYKG (Kangiqsujuaq (Wakeham Bay) Airport, Kangiqsujuaq, elev 501 ft) on a standard ISA day.

// Aircraft performance impact MINOR

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+5%

-4%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+4%

-2%

Light jetCJ4, Phenom 300, M2

+2%

-2%

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.

// Cloud layers · 3 reported · highest to lowest

// Reported layers (highest → lowest)

OVC087

Overcast · base 8,700 ft AGL · 8 oktas

SCT055

Scattered · base 5,500 ft AGL · ~3–4 oktas

FEW009

Few · base 900 ft AGL · ~1–2 oktas

// Computed

CEILING8,700 ft AGL HIGHEST LAYER8,700 ft TOTAL COVERAGE~100% (overcast) FREEZING LEVEL4,540 ft VFR MARGIN+5,700 ft

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

08:37ZSUNRISE

16:53ZSOLAR NOON

01:09ZSUNSET

01:58ZCIVIL END

CURRENT09:50Z DAYLIGHT REMAINING15h 18m VFR NIGHT BEGINS01:58Z (16h 07m) DAY LENGTH16h 31m

Waxing Gibbous

ILLUMINATION82% MOONRISE17:18Z MOONSET09:49Z FULL MOON IN4 days

// Nearest reporting stations

No nearby reporting stations found within 200 NM of CYAH.

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

AIRSPACE

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