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// STALE Observation is 1h 0m old — METAR cadence is typically hourly. A fresh report may be on its way.

// Station · 1h 0m ago · STALE

KSPI

Abraham Lincoln Capital Airport
CAT VFR
WIND CALM
VIS 10+ SM
CEILING OVC at 12,000 ft
T/Td 19.4°C / 16.7°C
ALTIM 29.96 inHg
ELEV 598 FT
39.8441°N / 89.6779°W
LOCATION · Springfield, US
N
WIND
000°0 kt
KSPI · 598 FT
© OSM · CartoDB

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

METRIC
NOW · 10Z
+6H
+12H
+18H
WIND
CALM
 
 
 
VIS
10+ SM
 
 
 
CEILING
OVC120
 
 
 
LAYERS
OVC120
 
 
 
T / Td
19 / 17
 
 
 
ALTIM
29.96"
 
 
 

// Interpretation

VFR — ceiling 12,000 ft. Winds calm, visibility better than 10 statute miles, overcast at 12,000 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 KSPI 271052Z 00000KT 10SM OVC120 19/17 A2996 RMK AO2 SLP140 T01940167 $

KSPI · day 27 at 10:52 UTC · winds calm · visibility 10+ SM · overcast at 12,000 ft · temp 19°C / dewpoint 17°C · altimeter 29.96" Hg · automated station w/ precipitation discriminator · sea-level pressure 1014.0 mb

// 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 6 ends
04 HDG 040° CALM 8,001'
22 HDG 220° CALM 8,001'
13 HDG 130° CALM 7,399'
31 HDG 310° CALM 7,399'
18 HDG 180° CALM 5,300'
36 HDG 360° CALM 5,300'
Pattern altitude: 1,598 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 +6°C

1,200FT
+602 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS ↗ +200 FT
2,500 1,650 800
24h AGO18h12h6hNOW
FIELD ELEV598 FT OAT+19°C ISA DELTA+6°C PRESSURE ALT557 FT
// Performance equivalent Operating here right now feels like operating at KBMI (Central Illinois Regional Airport at Bloomington-Normal, Bloomington/Normal, elev 871 ft) on a standard ISA day.
// Aircraft performance impact MINOR
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.

// Cloud layers · 1 reported · highest to lowest

FT 0 5k 10k 15k 20k 25k FRZ LVL · 10,396 FT OVC120 · CEILING KSPI ELEV · 598 FT
// Reported layers (highest → lowest)
OVC120
Overcast · base 12,000 ft AGL · 8 oktas
// Computed
CEILING12,000 ft AGL HIGHEST LAYER12,000 ft TOTAL COVERAGE~100% (overcast) FREEZING LEVEL10,396 ft VFR MARGIN+9,000 ft

// Sun & Moon · times in Z · bar = local day (UTC-6)

10:36ZSUNRISE
17:57ZSOLAR NOON
01:18ZSUNSET
01:49ZCIVIL END
CURRENT11:52Z DAYLIGHT REMAINING13h 25m VFR NIGHT BEGINS01:49Z (13h 57m) DAY LENGTH14h 41m
Waxing Gibbous
ILLUMINATION83% MOONRISE19:21Z MOONSET10:03Z FULL MOON IN4 days

// Nearest reporting stations · 5 shown · 100 NM (sparse area)

// Area map · 80 NM radius · CartoDB Dark Matter + aeronautical overlay

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