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// CYTH · Thompson Airport · Thompson

// STALE Observation is 1h 5m old — METAR cadence is typically hourly. A fresh report may be on its way.

// Station · 1h 5m ago · STALE

CYTH

Thompson Airport
CAT VFR
WIND 170° / 3 kt
VIS 10+ SM
CEILING Few/scattered only
T/Td 0°C / -4°C
ALTIM 30.03 inHg
ELEV 729 FT
55.8011°N / 97.8642°W
LOCATION · Thompson, CA
N
WIND
170°3 kt
CYTH · 729 FT
© OSM · CartoDB

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

METRIC
NOW · 00Z
+6H
+12H
+18H
WIND
170°/3
 
 
 
VIS
10+ SM
 
 
 
CEILING
—
 
 
 
LAYERS
FEW250
 
 
 
T / Td
0 / -4
 
 
 
ALTIM
30.03"
 
 
 

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// Interpretation

VFR with light winds at 170°/3 kt. Visibility better than 10 statute miles and a few at 25,000 ft. Would shift to MVFR if the ceiling drops to 3,000 ft or visibility below 5 SM.

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SOURCES · NOAA Aviation Weather Center METAR (TAF loading…)

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// Raw observation METAR string + decoded

METAR CYTH 130000Z 17003KT 15SM FEW250 00/M04 A3003 RMK CI1 SLP188

CYTH · day 13 at 00:00 UTC · wind from 170° at 3 kt · visibility 10+ SM · a few clouds at 25,000 ft · temp 0°C / dewpoint -4°C · altimeter 30.03" Hg · sea-level pressure 1018.8 mb

// Runway analysis · computed from current METAR wind

Wind 170° @ 3 kt
ALL USABLE · WINDS CALM
N
WIND
170°3 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
ALL RUNWAYS · CALM WINDS 4 ends
06 HDG 060° —CALM —— 5,800'
24 HDG 240° —CALM —— 5,800'
15 HDG 150° —CALM —— 5,079'
33 HDG 330° —CALM —— 5,079'
Pattern altitude: 1,729 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 -14°C

-1,000FT
-1,729 FT BELOW FIELD ELEV
// DA · LAST 24 HOURS loading…
FIELD ELEV729 FT OAT+0°C ISA DELTA-14°C PRESSURE ALT617 FT
// Performance equivalent Your aircraft will perform as if it's at a field -1,000 ft high on a standard ISA day — that's -1,729 ft above CYTH's actual elevation.
// Aircraft performance impact ENHANCED
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+0%
-0%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+0%
-0%
Light jetCJ4, Phenom 300, M2
+0%
-0%

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. Severity rating assumes a standard altimeter setting (29.92" Hg / 1013 hPa); a non-standard setting shifts the effective altitude by roughly 1,000 ft per 1" Hg of deviation.

// Cloud layers · 1 reported · highest to lowest

FT 0 5k 10k 15k 20k 25k FRZ LVL · 729 FT FEW250 CYTH ELEV · 729 FT
// Reported layers (highest → lowest)
FEW250
Few · base 25,000 ft AGL · ~1–2 oktas
// Computed
CEILING— HIGHEST LAYER25,000 ft TOTAL COVERAGE~15% (sparse) FREEZING LEVEL729 ft VFR MARGINunlimited

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

12:57ZSUNRISE
18:19ZSOLAR NOON
23:40ZSUNSET
00:18ZCIVIL END
CURRENT01:05Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS00:18Z (past) DAY LENGTH10h 43m
Waxing Crescent
ILLUMINATION3% MOONRISE14:18Z MOONSET01:01Z FULL MOON IN13 days

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

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