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// Station · 29m ago

KHDN

Yampa Valley Airport
CAT VFR
WIND 100° / 8 kt
VIS 10+ SM
CEILING CLR
T/Td 18.3°C / 2.8°C
ALTIM 30.31 inHg
ELEV 6,606 FT
40.4812°N / 107.2180°W
LOCATION · Hayden, US
N
WIND
100°8 kt
KHDN · 6,606 FT
© OSM · CartoDB

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

METRIC
NOW · 13Z
+6H
+12H
+18H
WIND
100°/8
 
 
 
VIS
10+ SM
 
 
 
CEILING
CLR
 
 
 
LAYERS
 
 
 
T / Td
18 / 3
 
 
 
ALTIM
30.31"
 
 
 

// Interpretation

VFR with moderate winds at 100°/8 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 KHDN 111356Z AUTO 10008KT 10SM CLR 18/03 A3031 RMK AO2 SLP168 T01830028

KHDN · day 11 at 13:56 UTC · wind from 100° at 8 kt · visibility 10+ SM · temp 18°C / dewpoint 3°C · altimeter 30.31" Hg · automated station w/ precipitation discriminator · sea-level pressure 1016.8 mb

// Runway analysis · computed from current METAR wind

Wind 100° @ 8 kt
1 USABLE · 1 AVOID
N
WIND
100°8 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
HEADWIND ENDS 1 usable
10 HDG 100° H8 kt X0 kt PRIMARY · 10,000'
TAILWIND ENDS · AVOID 1 ends
28 HDG 280° T8 kt X0 kt
Pattern altitude: 7,606 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 +16°C

8,100FT
+1,494 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS ↘ -300 FT
10,300 8,700 7,100
24h AGO18h12h6hNOW
FIELD ELEV6,606 FT OAT+18°C ISA DELTA+16°C PRESSURE ALT6,213 FT
// Performance equivalent Operating here right now feels like operating at K33V (Walden Jackson County Airport, Walden, elev 8,153 ft) on a standard ISA day.
// Aircraft performance impact DANGEROUS
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+81%
-57%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+57%
-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 · 15,848 FT KHDN ELEV · 6,606 FT
// Reported layers (highest → lowest)
CLR
No reported cloud layers — clear sky from surface to reporting ceiling.
// Computed
CEILING HIGHEST LAYER TOTAL COVERAGEclear FREEZING LEVEL15,848 ft VFR MARGINunlimited

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

11:49ZSUNRISE
19:15ZSOLAR NOON
02:41ZSUNSET
03:14ZCIVIL END
CURRENT14:25Z DAYLIGHT REMAINING12h 16m VFR NIGHT BEGINS03:14Z (12h 48m) DAY LENGTH14h 52m
Waning Crescent
ILLUMINATION11% MOONRISE09:13Z MOONSET00:05Z FULL MOON IN18 days

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

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

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