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// Station · 9m ago

KSJN

St Johns Industrial Air Park
CAT VFR
WIND 340° / 10 kt G25
VIS 10+ SM
CEILING CLR
T/Td 23.3°C / -5.6°C
ALTIM 30.04 inHg
ELEV 5,737 FT
34.5186°N / 109.3790°W
LOCATION · St Johns, US
N
WIND
340°10 kt
KSJN · 5,737 FT
© OSM · CartoDB

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

METRIC
NOW · 20Z
+6H
+12H
+18H
WIND
340°/10G25
 
 
 
VIS
10+ SM
 
 
 
CEILING
CLR
 
 
 
LAYERS
 
 
 
T / Td
23 / -6
 
 
 
ALTIM
30.04"
 
 
 

// Interpretation

VFR with moderate winds at 340°/10 kt, gusting 25. 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 KSJN 302054Z AUTO 34010G25KT 10SM CLR 23/M06 A3004 RMK AO2 SLP099 T02331056 56014

KSJN · day 30 at 20:54 UTC · wind from 340° at 10 kt, gusts to 25 kt · visibility 10+ SM · temp 23°C / dewpoint -6°C · altimeter 30.04" Hg · automated station w/ precipitation discriminator · sea-level pressure 1009.9 mb

// Runway analysis · computed from current METAR wind

Wind 340° @ 10 ktG25
2 USABLE · 2 AVOID
N
WIND
340°10G25 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
HEADWIND ENDS 2 usable
32 HDG 320° H9 kt X3 kt RIGHT PRIMARY · 5,322'
03 HDG 030° H6 kt X8 kt LEFT 3,400'
TAILWIND ENDS · AVOID 2 ends
21 HDG 210° T6 kt X8 kt RIGHT
14 HDG 140° T9 kt X3 kt LEFT
Pattern altitude: 6,737 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 +19°C

7,900FT
+2,163 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS ↘ -500 FT
8,800 7,100 5,400
24h AGO18h12h6hNOW
FIELD ELEV5,737 FT OAT+23°C ISA DELTA+19°C PRESSURE ALT5,613 FT
// Performance equivalent Operating here right now feels like operating at KAEJ (Central Colorado Regional Airport, Buena Vista, elev 7,946 ft) on a standard ISA day.
// Aircraft performance impact DANGEROUS
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+79%
-55%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+55%
-36%
Light jetCJ4, Phenom 300, M2
+32%
-24%

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 · 17,505 FT KSJN ELEV · 5,737 FT
// Reported layers (highest → lowest)
CLR
No reported cloud layers — clear sky from surface to reporting ceiling.
// Computed
CEILING HIGHEST LAYER TOTAL COVERAGEclear FREEZING LEVEL17,505 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC-7)

12:08ZSUNRISE
19:16ZSOLAR NOON
02:24ZSUNSET
02:53ZCIVIL END
CURRENT21:03Z DAYLIGHT REMAINING5h 21m VFR NIGHT BEGINS02:53Z (5h 50m) DAY LENGTH14h 16m
Full Moon
ILLUMINATION100% MOONRISE23:37Z MOONSET13:54Z FULL MOON IN1 day

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

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

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