// Station · 12m ago

ESNN

Sundsvall-Härnösand Airport

CAT VFR

WIND VRB / 2 kt

VIS 6+ SM

CEILING CLR

T/Td 8°C / 5°C

ALTIM 29.97 inHg

ELEV 16 FT

62.5281°N / 17.4439°E

LOCATION · Sundsvall/ Härnösand, SE

WIND

VRB2 kt

ESNN · 16 FT

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

METRIC

NOW · 17Z

+6H

+12H

+18H

WIND

VRB/2

VIS

6+ SM

CEILING

CLR

LAYERS

—

T / Td

8 / 5

ALTIM

29.97"

// Interpretation

VFR with light winds at variable/2 kt. Visibility 6+ SM 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 ESNN 131750Z AUTO VRB02KT 9999 NCD 08/05 Q1015

ESNN · day 13 at 17:50 UTC · wind variable at 2 kt · visibility 6+ SM · temp 8°C / dewpoint 5°C · altimeter 29.97" Hg

// 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

16 HDG 160° —CALM —— 6,857'

34 HDG 340° —CALM —— 6,857'

Pattern altitude: 1,016 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 -7°C

-900FT

-916 FT BELOW FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV16 FT OAT+8°C ISA DELTA-7°C PRESSURE ALT-37 FT

// Performance equivalent Your aircraft will perform as if it's at a field -900 ft high on a standard ISA day — that's -916 ft above ESNN's actual elevation.

// Aircraft performance impact ENHANCED

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+0%

-0%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+0%

-0%

Light jetCJ4, Phenom 300, M2

+0%

-0%

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 LEVEL4,056 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC+1)

04:10ZSUNRISE

10:47ZSOLAR NOON

17:24ZSUNSET

18:11ZCIVIL END

CURRENT18:02Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS18:11Z (8m) DAY LENGTH13h 14m

Waxing Crescent

ILLUMINATION4% MOONRISE05:42Z MOONSET18:57Z 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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