// Station · 16m ago

OPIS

Islamabad International Airport

CAT MVFR

WIND CALM

VIS 3.7 SM

CEILING CLR

T/Td 28°C / 21°C

ALTIM 29.68 inHg

ELEV 1,761 FT

33.5490°N / 72.8257°E

LOCATION · Attock, PK

WIND

000°0 kt

OPIS · 1,761 FT

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

METRIC

NOW · 16Z

+6H

+12H

+18H

WIND

CALM

VIS

3.7 SM

CEILING

CLR

LAYERS

—

T / Td

28 / 21

ALTIM

29.68"

// Interpretation

MVFR — visibility 3.7 SM. Winds calm, visibility 3.7 SM, no reported cloud layers. 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 OPIS 251600Z 00000KT 6000 NSC 28/21 Q1005 NOSIG

OPIS · day 25 at 16:00 UTC · winds calm · visibility 3.7 SM · temp 28°C / dewpoint 21°C · altimeter 29.68" Hg

// 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

10L HDG 100° —CALM —— 12,001'

28R HDG 280° —CALM —— 12,001'

10R HDG 100° —CALM —— 12,001'

28L HDG 280° —CALM —— 12,001'

Pattern altitude: 2,761 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 +17°C

4,000FT

+2,239 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV1,761 FT OAT+28°C ISA DELTA+17°C PRESSURE ALT2,003 FT

// Performance equivalent Operating here right now feels like operating at OPKH (Khuzdar Airport, Khuzdar, elev 4,012 ft) on a standard ISA day.

// Aircraft performance impact SIGNIFICANT

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+40%

-28%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+28%

-18%

Light jetCJ4, Phenom 300, M2

+16%

-12%

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 LEVEL15,902 ft VFR MARGINunlimited

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

00:39ZSUNRISE

07:12ZSOLAR NOON

13:45ZSUNSET

14:11ZCIVIL END

CURRENT16:16Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS14:11Z (past) DAY LENGTH13h 06m

Waxing Gibbous

ILLUMINATION94% MOONRISE10:41Z MOONSET23:48Z FULL MOON IN2 days

// Nearest reporting stations

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

AIRSPACE

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