// Station · 23m ago

KBTN

Britton Municipal Airport

CAT MVFR

WIND CALM

VIS 5.0 SM

CEILING CLR

T/Td 24°C / 19°C

ALTIM 29.86 inHg

WX HZ

ELEV 1,318 FT

45.8152°N / 97.7431°W

LOCATION · Britton, US

WIND

000°0 kt

KBTN · 1,318 FT

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

METRIC

NOW · 00Z

+6H

+12H

+18H

WIND

CALM

VIS

5.0 SM

CEILING

CLR

LAYERS

—

T / Td

24 / 19

ALTIM

29.86"

// Interpretation

MVFR — visibility 5.0 SM. Winds calm, visibility 5.0 SM, no reported cloud layers. Reported weather: haze (HZ). Haze is fine dust, salt, or pollution particles suspended in dry air — it reduces visibility and washes out contrast, a dry particulate obscuration rather than a moisture one. Note that automated stations can't chemically tell smoke from haze — during a regional smoke event, this may in fact be drifting wildfire smoke reported as haze. Would drop to IFR below 1,000 ft ceiling or 3 SM visibility, or rise back to VFR above 3,000 ft and 5 SM.

Loading TAF forecast narrative…

SOURCES · NOAA Aviation Weather Center METAR (TAF loading…)

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// Raw observation METAR string + decoded

METAR KBTN 290055Z AUTO 00000KT 5SM HZ CLR 24/19 A2986 RMK AO2

KBTN · day 29 at 00:55 UTC · winds calm · visibility 5.0 SM · temp 24°C / dewpoint 19°C · altimeter 29.86" Hg · weather: haze (HZ) · automated station w/ precipitation discriminator

// 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 4 ends

13 HDG 130° —CALM —— 4,210'

31 HDG 310° —CALM —— 4,210'

01 HDG 010° —CALM —— 2,034'

19 HDG 190° —CALM —— 2,034'

Pattern altitude: 2,318 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 +12°C

2,800FT

+1,482 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV1,318 FT OAT+24°C ISA DELTA+12°C PRESSURE ALT1,374 FT

// Performance equivalent Operating here right now feels like operating at KSUO (Rosebud Sioux Tribal Airport, Rosebud, elev 2,724 ft) on a standard ISA day.

// Aircraft performance impact MODERATE

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+28%

-20%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+20%

-13%

Light jetCJ4, Phenom 300, M2

+11%

-8%

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 LEVEL13,439 ft VFR MARGINunlimited

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

11:48ZSUNRISE

18:33ZSOLAR NOON

01:19ZSUNSET

01:50ZCIVIL END

CURRENT01:18Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS01:50Z (31m) DAY LENGTH13h 30m

Waning Gibbous

ILLUMINATION99% MOONRISE00:35Z MOONSET14:06Z FULL MOON IN29 days

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

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