// Station · 24m ago

KPWM

Portland International Jetport

CAT VFR

WIND VRB / 3 kt

VIS 10+ SM

CEILING Few/scattered only

T/Td 23.9°C / 13.3°C

ALTIM 29.90 inHg

ELEV 76 FT

43.6462°N / 70.3093°W

LOCATION · Portland, US

WIND

VRB3 kt

KPWM · 76 FT

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

METRIC

NOW · 15Z

+6H

+12H

+18H

WIND

VRB/3

VIS

10+ SM

CEILING

—

LAYERS

SCT044

T / Td

24 / 13

ALTIM

29.90"

// Interpretation

VFR with light winds at variable/3 kt. Visibility better than 10 statute miles and scattered at 4,400 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 KPWM 251551Z VRB03KT 10SM SCT044 24/13 A2990 RMK AO2 SLP125 T02390133 $

KPWM · day 25 at 15:51 UTC · wind variable at 3 kt · visibility 10+ SM · scattered layer at 4,400 ft · temp 24°C / dewpoint 13°C · altimeter 29.90" Hg · automated station w/ precipitation discriminator · sea-level pressure 1012.5 mb

// Runway analysis · computed from current METAR wind

Wind VRB @ 3 kt

ALL USABLE · WINDS CALM

WIND

VRB3 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 4 ends

11 HDG 110° —CALM —— 7,200'

29 HDG 290° —CALM —— 7,200'

18 HDG 180° —CALM —— 6,100'

36 HDG 360° —CALM —— 6,100'

Pattern altitude: 1,076 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 +9°C

1,200FT

+1,124 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV76 FT OAT+24°C ISA DELTA+9°C PRESSURE ALT94 FT

// Performance equivalent Operating here right now feels like operating at K3B1 (Greenville Municipal Airport, Greenville, elev 1,401 ft) on a standard ISA day.

// Aircraft performance impact MODERATE

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. 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 · 1 reported · highest to lowest

// Reported layers (highest → lowest)

SCT044

Scattered · base 4,400 ft AGL · ~3–4 oktas

// Computed

CEILING— HIGHEST LAYER4,400 ft TOTAL COVERAGE~40% (mixed) FREEZING LEVEL12,147 ft VFR MARGINunlimited

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

09:58ZSUNRISE

16:44ZSOLAR NOON

23:31ZSUNSET

00:01ZCIVIL END

CURRENT16:15Z DAYLIGHT REMAINING7h 15m VFR NIGHT BEGINS00:01Z (7h 45m) DAY LENGTH13h 32m

Waxing Gibbous

ILLUMINATION94% MOONRISE20:00Z MOONSET09:33Z FULL MOON IN2 days

// Nearest reporting stations

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

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