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// Station · 58m ago

KRCA

Ellsworth Air Force Base
CAT VFR
WIND 180° / 7 kt
VIS 10+ SM
CEILING CLR
T/Td 17.9°C / 7.9°C
ALTIM 29.90 inHg
ELEV 3,276 FT
44.1450°N / 103.1040°W
LOCATION · Rapid City, US
N
WIND
180°7 kt
KRCA · 3,276 FT
© OSM · CartoDB

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

METRIC
NOW · 10Z
+6H
+12H
+18H
WIND
180°/7
 
 
 
VIS
10+ SM
 
 
 
CEILING
CLR
 
 
 
LAYERS
 
 
 
T / Td
18 / 8
 
 
 
ALTIM
29.90"
 
 
 

// Interpretation

VFR with light winds at 180°/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 KRCA 271055Z AUTO 18007KT 10SM CLR 18/08 A2990 RMK AO2 SLP098 T01790079

KRCA · day 27 at 10:55 UTC · wind from 180° at 7 kt · visibility 10+ SM · temp 18°C / dewpoint 8°C · altimeter 29.90" Hg · automated station w/ precipitation discriminator · sea-level pressure 1009.8 mb

// Runway analysis · computed from current METAR wind

Wind 180° @ 7 kt
1 USABLE · 1 AVOID
N
WIND
180°7 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
HEADWIND ENDS 1 usable
13 HDG 130° H4 kt X5 kt RIGHT PRIMARY · 13,497'
TAILWIND ENDS · AVOID 1 ends
31 HDG 310° T4 kt X5 kt LEFT
Pattern altitude: 4,276 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 +9°C

4,400FT
+1,124 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS ↘ -300 FT
6,800 5,300 3,800
24h AGO18h12h6hNOW
FIELD ELEV3,276 FT OAT+18°C ISA DELTA+9°C PRESSURE ALT3,294 FT
// Performance equivalent Operating here right now feels like operating at KGCC (Northeast Wyoming Regional Airport, Gillette, elev 4,365 ft) on a standard ISA day.
// Aircraft performance impact SIGNIFICANT
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+44%
-31%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+31%
-20%
Light jetCJ4, Phenom 300, M2
+18%
-13%

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 · 12,316 FT KRCA ELEV · 3,276 FT
// Reported layers (highest → lowest)
CLR
No reported cloud layers — clear sky from surface to reporting ceiling.
// Computed
CEILING HIGHEST LAYER TOTAL COVERAGEclear FREEZING LEVEL12,316 ft VFR MARGINunlimited

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

11:16ZSUNRISE
18:51ZSOLAR NOON
02:25ZSUNSET
03:00ZCIVIL END
CURRENT11:53Z DAYLIGHT REMAINING14h 31m VFR NIGHT BEGINS03:00Z (15h 06m) DAY LENGTH15h 08m
Waxing Gibbous
ILLUMINATION83% MOONRISE20:01Z MOONSET11:10Z FULL MOON IN4 days

// Nearest reporting stations · 5 shown · 150 NM (sparse area)

// Area map · 140 NM radius · CartoDB Dark Matter + aeronautical overlay

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