// Station · 12m ago

KTRI

Tri-Cities Regional TN/VA Airport

CAT VFR

WIND VRB / 5 kt

VIS 7.0 SM

CEILING BKN at 3,500 ft

T/Td 23.3°C / 21.1°C

ALTIM 30.11 inHg

ELEV 1,519 FT

36.4752°N / 82.4074°W

LOCATION · Blountville, US

WIND

VRB5 kt

KTRI · 1,519 FT

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

METRIC

NOW · 16Z

+6H

+12H

+18H

WIND

VRB/5

VIS

7.0 SM

CEILING

BKN035

LAYERS

SCT007 BKN035 BKN110

T / Td

23 / 21

ALTIM

30.11"

// Interpretation

VFR — ceiling 3,500 ft. Light winds at variable/5 kt, visibility 7.0 SM, scattered at 700 ft, broken at 3,500 ft, and broken at 11,000 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

METAR KTRI 111653Z VRB05KT 7SM SCT007 BKN035 BKN110 23/21 A3011 RMK AO2 RAB19E30 SLP170 P0000 T02330211 $

KTRI · day 11 at 16:53 UTC · wind variable at 5 kt · visibility 7.0 SM · scattered layer at 700 ft · broken layer at 3,500 ft · broken layer at 11,000 ft · temp 23°C / dewpoint 21°C · altimeter 30.11" Hg · automated station w/ precipitation discriminator · sea-level pressure 1017.0 mb

// Runway analysis · computed from current METAR wind

Wind VRB @ 5 kt

ALL USABLE · WINDS CALM

WIND

VRB5 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 4 ends

05 HDG 050° —CALM —— 8,000'

23 HDG 230° —CALM —— 8,000'

09 HDG 090° —CALM —— 4,443'

27 HDG 270° —CALM —— 4,443'

Pattern altitude: 2,519 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 +11°C

2,600FT

+1,081 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS ↘ -400 FT

24h AGO18h12h6hNOW

FIELD ELEV1,519 FT OAT+23°C ISA DELTA+11°C PRESSURE ALT1,327 FT

// Performance equivalent Operating here right now feels like operating at K6A4 (Johnson County Airport, Mountain City, elev 2,240 ft) on a standard ISA day.

// Aircraft performance impact MINOR

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+26%

-18%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+18%

-12%

Light jetCJ4, Phenom 300, M2

+10%

-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.

// Cloud layers · 3 reported · highest to lowest

// Reported layers (highest → lowest)

BKN110

Broken · base 11,000 ft AGL · ~5–7 oktas

BKN035

Broken · base 3,500 ft AGL · ~5–7 oktas

SCT007

Scattered · base 700 ft AGL · ~3–4 oktas

// Computed

CEILING3,500 ft AGL HIGHEST LAYER11,000 ft TOTAL COVERAGE~91% (overcast) FREEZING LEVEL13,287 ft VFR MARGIN+500 ft

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

10:21ZSUNRISE

17:36ZSOLAR NOON

00:50ZSUNSET

01:20ZCIVIL END

CURRENT17:05Z DAYLIGHT REMAINING7h 45m VFR NIGHT BEGINS01:20Z (8h 15m) DAY LENGTH14h 29m

Waning Crescent

ILLUMINATION10% MOONRISE07:51Z MOONSET22:20Z FULL MOON IN18 days

// Nearest reporting stations

No nearby reporting stations found within 200 NM of KTRI.

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

AIRSPACE

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