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// Station · 38m ago

KXLL

Allentown Queen City Municipal Airport
CAT VFR
WIND CALM
VIS 10+ SM
CEILING CLR
T/Td 18°C / 12°C
ALTIM 30.16 inHg
ELEV 399 FT
40.5701°N / 75.4868°W
LOCATION · Allentown, US
N
WIND
000°0 kt
KXLL · 399 FT
© OSM · CartoDB

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

METRIC
NOW · 04Z
+6H
+12H
+18H
WIND
CALM
 
 
 
VIS
10+ SM
 
 
 
CEILING
CLR
 
 
 
LAYERS
 
 
 
T / Td
18 / 12
 
 
 
ALTIM
30.16"
 
 
 

// Interpretation

VFR with winds calm. Visibility better than 10 statute miles 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 KXLL 290435Z AUTO 00000KT 10SM CLR 18/12 A3016 RMK AO2 TSNO

KXLL · day 29 at 04:35 UTC · winds calm · visibility 10+ SM · temp 18°C / dewpoint 12°C · altimeter 30.16" Hg · automated station w/ precipitation discriminator

// Runway analysis · computed from current METAR wind

Wind CALM
ALL USABLE · WINDS CALM
N
WIND
000°calm
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
ALL RUNWAYS · CALM WINDS 4 ends
07 HDG 070° CALM 3,950'
25 HDG 250° CALM 3,950'
15 HDG 150° CALM 3,160'
33 HDG 330° CALM 3,160'
Pattern altitude: 1,399 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 +3°C

600FT
+201 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS loading…
FIELD ELEV399 FT OAT+18°C ISA DELTA+3°C PRESSURE ALT157 FT
// Performance equivalent Operating here right now feels like operating at KCKZ (Pennridge Airport, Perkasie, elev 568 ft) on a standard ISA day.
// Aircraft performance impact MINOR
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+6%
-4%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+4%
-3%
Light jetCJ4, Phenom 300, M2
+2%
-2%

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

FT 0 5k 10k 15k 20k 25k FRZ LVL · 9,490 FT KXLL ELEV · 399 FT
// Reported layers (highest → lowest)
CLR
No reported cloud layers — clear sky from surface to reporting ceiling.
// Computed
CEILING HIGHEST LAYER TOTAL COVERAGEclear FREEZING LEVEL9,490 ft VFR MARGINunlimited

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

10:27ZSUNRISE
17:04ZSOLAR NOON
23:41ZSUNSET
00:09ZCIVIL END
CURRENT05:13Z DAYLIGHT REMAINING18h 27m VFR NIGHT BEGINS00:09Z (18h 55m) DAY LENGTH13h 13m
Waning Gibbous
ILLUMINATION99% MOONRISE23:22Z MOONSET12:36Z FULL MOON IN28 days

// Nearest reporting stations

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

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