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// Station · 4m ago

KCMR

H.A. Clark Memorial Field
CAT VFR
WIND 240° / 10 kt
VIS 10+ SM
CEILING CLR
T/Td 21°C / -5°C
ALTIM 30.14 inHg
ELEV 6,680 FT
35.3056°N / 112.1944°W
LOCATION · Williams, US
N
WIND
240°10 kt
KCMR · 6,680 FT
© OSM · CartoDB

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

METRIC
NOW · 20Z
+6H
+12H
+18H
WIND
240°/10
 
 
 
VIS
10+ SM
 
 
 
CEILING
CLR
 
 
 
LAYERS
 
 
 
T / Td
21 / -5
 
 
 
ALTIM
30.14"
 
 
 

// Interpretation

VFR with moderate winds at 240°/10 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 KCMR 302055Z AUTO 24010KT 10SM CLR 21/M05 A3014 RMK AO2

KCMR · day 30 at 20:55 UTC · wind from 240° at 10 kt · visibility 10+ SM · temp 21°C / dewpoint -5°C · altimeter 30.14" Hg · automated station w/ precipitation discriminator

// Runway analysis · computed from current METAR wind

Wind 240° @ 10 kt
1 USABLE · 1 AVOID · 1 CAUTION
N
WIND
240°10 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
HEADWIND ENDS 1 usable
18 HDG 180° H5 kt X9 kt RIGHT PRIMARY · 6,003'
TAILWIND ENDS · AVOID 1 ends
36 HDG 360° T5 kt X9 kt LEFT
Pattern altitude: 7,680 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

8,700FT
+2,020 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS ↗ +400 FT
9,100 7,450 5,800
24h AGO18h12h6hNOW
FIELD ELEV6,680 FT OAT+21°C ISA DELTA+19°C PRESSURE ALT6,459 FT
// Performance equivalent Operating here right now feels like operating at KC24 (Mineral County Memorial Airport, Creede, elev 8,680 ft) on a standard ISA day.
// Aircraft performance impact DANGEROUS
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+87%
-61%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+61%
-39%
Light jetCJ4, Phenom 300, M2
+35%
-26%

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 · 17,286 FT KCMR ELEV · 6,680 FT
// Reported layers (highest → lowest)
CLR
No reported cloud layers — clear sky from surface to reporting ceiling.
// Computed
CEILING HIGHEST LAYER TOTAL COVERAGEclear FREEZING LEVEL17,286 ft VFR MARGINunlimited

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

12:17ZSUNRISE
19:27ZSOLAR NOON
02:38ZSUNSET
03:07ZCIVIL END
CURRENT20:59Z DAYLIGHT REMAINING5h 38m VFR NIGHT BEGINS03:07Z (6h 08m) DAY LENGTH14h 20m
Full Moon
ILLUMINATION100% MOONRISE23:47Z MOONSET14:07Z FULL MOON IN1 day

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

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

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