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// Station · 8m ago

KN03

Cortland County Chase Field
CAT VFR
WIND 250° / 4 kt
VIS 10+ SM
CEILING CLR
T/Td 31°C / 18°C
ALTIM 29.94 inHg
ELEV 1,198 FT
42.5926°N / 76.2149°W
LOCATION · Cortland, US
N
WIND
250°4 kt
KN03 · 1,198 FT
© OSM · CartoDB

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

METRIC
NOW · 22Z
+6H
+12H
+18H
WIND
250°/4
 
 
 
VIS
10+ SM
 
 
 
CEILING
CLR
 
 
 
LAYERS
 
 
 
T / Td
31 / 18
 
 
 
ALTIM
29.94"
 
 
 

// Interpretation

VFR with light winds at 250°/4 kt. 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 KN03 142255Z AUTO 25004KT 10SM CLR 31/18 A2994 RMK AO2

KN03 · day 14 at 22:55 UTC · wind from 250° at 4 kt · visibility 10+ SM · temp 31°C / dewpoint 18°C · altimeter 29.94" Hg · automated station w/ precipitation discriminator

// Runway analysis · computed from current METAR wind

Wind 250° @ 4 kt
ALL USABLE · WINDS CALM
N
WIND
250°4 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
ALL RUNWAYS · CALM WINDS 2 ends
06 HDG 060° CALM 3,401'
24 HDG 240° CALM 3,401'
Pattern altitude: 2,198 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 +18°C

3,400FT
+2,202 FT ABOVE FIELD ELEV
FIELD ELEV1,198 FT OAT+31°C ISA DELTA+18°C PRESSURE ALT1,175 FT
// Performance equivalent Operating here right now feels like operating at KGEV (Ashe County Airport, Jefferson, elev 3,180 ft) on a standard ISA day.
// Aircraft performance impact SIGNIFICANT
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+34%
-24%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+24%
-15%
Light jetCJ4, Phenom 300, M2
+14%
-10%

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.

// Cloud layers · clear · no layers reported

FT 0 5k 10k 15k 20k 25k FRZ LVL · 16,855 FT KN03 ELEV · 1,198 FT
// Reported layers (highest → lowest)
CLR
No reported cloud layers — clear sky from surface to reporting ceiling.
// Computed
CEILING HIGHEST LAYER TOTAL COVERAGEclear FREEZING LEVEL16,855 ft VFR MARGINunlimited

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

09:40ZSUNRISE
17:11ZSOLAR NOON
00:42ZSUNSET
01:16ZCIVIL END
CURRENT23:03Z DAYLIGHT REMAINING1h 38m VFR NIGHT BEGINS01:16Z (2h 12m) DAY LENGTH15h 01m
New Moon
ILLUMINATION0% MOONRISE09:49Z MOONSET00:50Z FULL MOON IN15 days

// Nearest reporting stations · 5 shown · 60 NM radius

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

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