// Station · 54m ago

PASV

Sparrevohn LRRS Airport

CAT VFR

WIND 140° / 3 kt

VIS 10+ SM

CEILING OVC at 5,000 ft

T/Td 4.7°C / -0.1°C

ALTIM 29.50 inHg

WX -SHRA

ELEV 1,585 FT

61.0974°N / 155.5740°W

LOCATION · Sparrevohn, US

WIND

140°3 kt

PASV · 1,585 FT

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

METRIC

NOW · 08Z

+6H

+12H

+18H

WIND

140°/3

VIS

10+ SM

CEILING

OVC050

LAYERS

FEW029 OVC050

T / Td

5 / 0

ALTIM

29.50"

// Interpretation

VFR — ceiling 5,000 ft. Light winds at 140°/3 kt, visibility better than 10 statute miles, a few at 2,900 ft, and overcast at 5,000 ft. Reported weather: -SHRA. 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 PASV 270855Z AUTO 14003KT 10SM -SHRA FEW029 OVC050 05/00 A2950 RMK AO2 SHRAB0723E0803B0844 SLP999 P0000 60000 T00471001 400620010 52018;

PASV · day 27 at 08:55 UTC · wind from 140° at 3 kt · visibility 10+ SM · a few clouds at 2,900 ft · overcast at 5,000 ft · temp 5°C / dewpoint 0°C · altimeter 29.50" Hg · weather: -SHRA · automated station w/ precipitation discriminator · sea-level pressure 999.9 mb

// Runway analysis · computed from current METAR wind

Wind 140° @ 3 kt

ALL USABLE · WINDS CALM

WIND

140°3 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 2 ends

17 HDG 170° —CALM —— 4,200'

35 HDG 350° —CALM —— 4,200'

Pattern altitude: 2,585 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

1,200FT

-385 FT BELOW FIELD ELEV

// DA · LAST 24 HOURS ↘ -300 FT

24h AGO18h12h6hNOW

FIELD ELEV1,585 FT OAT+5°C ISA DELTA-6°C PRESSURE ALT2,002 FT

// Performance equivalent Operating here right now feels like operating at PAHV (Healy River Airport, Healy, elev 1,263 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.

// Cloud layers · 2 reported · highest to lowest

// Reported layers (highest → lowest)

OVC050

Overcast · base 5,000 ft AGL · 8 oktas

FEW029

Few · base 2,900 ft AGL · ~1–2 oktas

// Computed

CEILING5,000 ft AGL HIGHEST LAYER5,000 ft TOTAL COVERAGE~100% (overcast) FREEZING LEVEL3,959 ft VFR MARGIN+2,000 ft

// Sun & Moon · times in Z · bar = local day (UTC-10)

13:11ZSUNRISE

22:20ZSOLAR NOON

07:29ZSUNSET

08:56ZCIVIL END

CURRENT09:49Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS08:56Z (past) DAY LENGTH18h 17m

Waxing Gibbous

ILLUMINATION82% MOONRISE21:52Z MOONSET16:10Z FULL MOON IN4 days

// Nearest reporting stations · 5 shown · 150 NM (sparse area)

PASL

VFR

Sleetmute Airport · Sleetmute

WIND: CALM
VIS: 10+ SM
CEILING: BKN100
DIST: 58 NM NW
AGE: 53m ago

PAIL

VFR → MVFR 15Z

Iliamna Airport · Iliamna

WIND: 050° / 4 kt
VIS: 10+ SM
CEILING: OVC034
DIST: 83 NM S
AGE: 56m ago

PAIG

VFR

Igiugig Airport · Igiugig

WIND: 190° / 3 kt
VIS: 10+ SM
CEILING: OVC065
DIST: 107 NM S
AGE: 10m ago

PATL

VFR

Tatalina LRRS Airport · Takotna

WIND: VRB / 3 kt
VIS: 10+ SM
CEILING: BKN100
DIST: 108 NM N
AGE: 54m ago

PAMC

VFR

McGrath Airport · McGrath

WIND: 100° / 3 kt
VIS: 10+ SM
CEILING: OVC100
DIST: 111 NM N
AGE: 56m ago

// Area map · 120 NM radius · CartoDB Dark Matter + aeronautical overlay

AIRSPACE

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