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// Station · 5m ago

KAPN

Alpena County Regional Airport
CAT VFR
WIND 050° / 7 kt
VIS 10+ SM
CEILING CLR
T/Td 16.7°C / 7.2°C
ALTIM 30.05 inHg
ELEV 690 FT
45.0781°N / 83.5603°W
LOCATION · Alpena, US
N
WIND
050°7 kt
KAPN · 690 FT
© OSM · CartoDB

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

METRIC
NOW · 12Z
+6H
+12H
+18H
WIND
050°/7
 
 
 
VIS
10+ SM
 
 
 
CEILING
CLR
 
 
 
LAYERS
 
 
 
T / Td
17 / 7
 
 
 
ALTIM
30.05"
 
 
 

// Interpretation

VFR with light winds at 050°/7 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 KAPN 271254Z AUTO 05007KT 10SM CLR 17/07 A3005 RMK AO2 SLP175 T01670072

KAPN · day 27 at 12:54 UTC · wind from 050° at 7 kt · visibility 10+ SM · temp 17°C / dewpoint 7°C · altimeter 30.05" Hg · automated station w/ precipitation discriminator · sea-level pressure 1017.5 mb

// Runway analysis · computed from current METAR wind

Wind 050° @ 7 kt
2 USABLE · 2 AVOID
N
WIND
050°7 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
HEADWIND ENDS 2 usable
07 HDG 070° H7 kt X2 kt LEFT PRIMARY · 5,028'
01 HDG 010° H5 kt X4 kt RIGHT 9,001'
TAILWIND ENDS · AVOID 2 ends
19 HDG 190° T5 kt X4 kt LEFT
25 HDG 250° T7 kt X2 kt RIGHT
Pattern altitude: 1,690 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

900FT
+210 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS ↘ -1,100 FT
3,100 1,600 100
24h AGO18h12h6hNOW
FIELD ELEV690 FT OAT+17°C ISA DELTA+3°C PRESSURE ALT557 FT
// Performance equivalent Operating here right now feels like operating at KAZO (Kalamazoo/Battle Creek International Airport, Kalamazoo, elev 874 ft) on a standard ISA day.
// Aircraft performance impact MINOR
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+9%
-6%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+6%
-4%
Light jetCJ4, Phenom 300, M2
+4%
-3%

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 · 9,124 FT KAPN ELEV · 690 FT
// Reported layers (highest → lowest)
CLR
No reported cloud layers — clear sky from surface to reporting ceiling.
// Computed
CEILING HIGHEST LAYER TOTAL COVERAGEclear FREEZING LEVEL9,124 ft VFR MARGINunlimited

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

09:55ZSUNRISE
17:32ZSOLAR NOON
01:10ZSUNSET
01:46ZCIVIL END
CURRENT12:59Z DAYLIGHT REMAINING12h 10m VFR NIGHT BEGINS01:46Z (12h 46m) DAY LENGTH15h 15m
Waxing Gibbous
ILLUMINATION83% MOONRISE18:42Z MOONSET09:57Z FULL MOON IN4 days

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

// Area map · 100 NM radius · CartoDB Dark Matter + aeronautical overlay

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