// Station · 15m ago

DRRN

Diori Hamani International Airport

CAT VFR

WIND 240° / 7 kt

VIS 6+ SM

CEILING CLR

T/Td 39°C / 21°C

ALTIM 29.77 inHg

ELEV 732 FT

13.4815°N / 2.1836°E

LOCATION · Niamey, NE

WIND

240°7 kt

DRRN · 732 FT

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

METRIC

NOW · 16Z

+6H

+12H

+18H

WIND

240°/7

VIS

6+ SM

CEILING

CLR

LAYERS

—

T / Td

39 / 21

ALTIM

29.77"

// Interpretation

VFR with light winds at 240°/7 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 DRRN 251600Z 24007KT 200V270 CAVOK 39/21 Q1008 NOSIG

DRRN · day 25 at 16:00 UTC · wind from 240° at 7 kt · visibility 6+ SM · temp 39°C / dewpoint 21°C · altimeter 29.77" Hg

// Runway analysis · computed from current METAR wind

Wind 240° @ 7 kt

2 USABLE · 2 AVOID

WIND

240°7 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 2 usable

27R★ HDG 270° H6 kt X3 kt LEFT PRIMARY · 10,499'

27L HDG 270° H6 kt X3 kt LEFT 9,843'

TAILWIND ENDS · AVOID 2 ends

09L HDG 090° T6 kt X3 kt RIGHT —

09R HDG 090° T6 kt X3 kt RIGHT —

Pattern altitude: 1,732 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 +26°C

4,000FT

+3,268 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV732 FT OAT+39°C ISA DELTA+26°C PRESSURE ALT886 FT

// Performance equivalent Your aircraft will perform as if it's at a field 4,000 ft high on a standard ISA day — that's +3,268 ft above DRRN's actual elevation.

// Aircraft performance impact DANGEROUS

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 LEVEL20,429 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC+0)

05:40ZSUNRISE

11:54ZSOLAR NOON

18:08ZSUNSET

18:30ZCIVIL END

CURRENT16:15Z DAYLIGHT REMAINING1h 52m VFR NIGHT BEGINS18:30Z (2h 14m) DAY LENGTH12h 27m

Waxing Gibbous

ILLUMINATION94% MOONRISE15:43Z MOONSET04:11Z 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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