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// KCMY · Sparta Fort McCoy Airport · Sparta

// STALE Observation is 1h 6m old — METAR cadence is typically hourly. A fresh report may be on its way.

// Station · 1h 6m ago · STALE

KCMY

Sparta Fort McCoy Airport
CAT VFR
WIND 110° / 11 kt G17
VIS 10+ SM
CEILING Few/scattered only
T/Td 23.7°C / 8.1°C
ALTIM 30.08 inHg
ELEV 837 FT
43.9580°N / 90.7379°W
LOCATION · Sparta, US
N
WIND
110°11 kt
KCMY · 837 FT
© OSM · CartoDB

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

METRIC
NOW · 19Z
+6H
+12H
+18H
WIND
110°/11G17
 
 
 
VIS
10+ SM
 
 
 
CEILING
—
 
 
 
LAYERS
FEW240 FEW340 FEW380
 
 
 
T / Td
24 / 8
 
 
 
ALTIM
30.08"
 
 
 

Loading TAF forecast…

// Interpretation

VFR with moderate winds at 110°/11 kt, gusting 17. Visibility better than 10 statute miles and a few at 24,000 ft, a few at 34,000 ft, and a few at 38,000 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 KCMY 301955Z AUTO 11011G17KT 10SM FEW240 FEW340 FEW380 24/08 A3008 RMK AO2 SLP189 T02370081

KCMY · day 30 at 19:55 UTC · wind from 110° at 11 kt, gusts to 17 kt · visibility 10+ SM · a few clouds at 24,000 ft · a few clouds at 34,000 ft · a few clouds at 38,000 ft · temp 24°C / dewpoint 8°C · altimeter 30.08" Hg · automated station w/ precipitation discriminator · sea-level pressure 1018.9 mb

// Runway analysis · computed from current METAR wind

Wind 110° @ 11 ktG17
2 USABLE · 2 AVOID · 1 CAUTION
N
WIND
110°11G17 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
HEADWIND ENDS 2 usable
11★ HDG 110° H11 kt X0 kt — PRIMARY · 4,697'
19 HDG 190° H2 kt X11 kt LEFT ⚠ HIGH XW · 65%
TAILWIND ENDS · AVOID 2 ends
01 HDG 010° T2 kt X11 kt RIGHT —
29 HDG 290° T11 kt X0 kt — —
Pattern altitude: 1,837 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 +10°C

1,900FT
+1,063 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS ↘ -800 FT
3,200 1,300 -600
24h AGO18h12h6hNOW
FIELD ELEV837 FT OAT+24°C ISA DELTA+10°C PRESSURE ALT675 FT
// Performance equivalent Operating here right now feels like operating at KLNL (Kings Land O' Lakes Airport, Land O' Lakes, elev 1,704 ft) on a standard ISA day.
// Aircraft performance impact MINOR
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+19%
-13%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+13%
-9%
Light jetCJ4, Phenom 300, M2
+8%
-6%

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 · 3 reported · highest to lowest

FT 0 5k 10k 15k 20k 25k FRZ LVL · 12,807 FT FEW240 FEW340 FEW380 KCMY ELEV · 837 FT
// Reported layers (highest → lowest)
FEW380
Few · base 38,000 ft AGL · ~1–2 oktas
FEW340
Few · base 34,000 ft AGL · ~1–2 oktas
FEW240
Few · base 24,000 ft AGL · ~1–2 oktas
// Computed
CEILING— HIGHEST LAYER38,000 ft TOTAL COVERAGE~31% (mixed) FREEZING LEVEL12,807 ft VFR MARGINunlimited

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

10:25ZSUNRISE
18:01ZSOLAR NOON
01:38ZSUNSET
02:13ZCIVIL END
CURRENT21:01Z DAYLIGHT REMAINING4h 36m VFR NIGHT BEGINS02:13Z (5h 11m) DAY LENGTH15h 12m
Full Moon
ILLUMINATION100% MOONRISE21:55Z MOONSET13:07Z FULL MOON IN1 day

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

KC35
VFR
Reedsburg Municipal Airport · Reedsburg
WIND
090° / 7 kt
VIS
10+ SM
CEILING
CLR
DIST
42 NM SE
AGE
6m ago
KONA
VFR
Winona Municipal Airport Max Conrad Field · Winona
WIND
090° / 14 ktG20
VIS
10+ SM
CEILING
CLR
DIST
43 NM W
AGE
6m ago
KMFI
VFR
Marshfield Municipal Airport · Marshfield
WIND
120° / 12 ktG20
VIS
10+ SM
CEILING
CLR
DIST
47 NM NE
AGE
7m ago
KOVS
VFR
Boscobel Airport · Boscobel
WIND
080° / 8 ktG16
VIS
10+ SM
CEILING
CLR
DIST
48 NM S
AGE
8m ago
KDLL
VFR
Baraboo Wisconsin Dells Regional Airport · Baraboo
WIND
080° / 11 ktG16
VIS
10+ SM
CEILING
CLR
DIST
49 NM SE
AGE
6m ago

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

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