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// Station · 6m ago

KSPF

Black Hills Airport-Clyde Ice Field
CAT VFR
WIND 110° / 16 kt G22
VIS 10+ SM
CEILING CLR
T/Td 38°C / 2°C
ALTIM 30.08 inHg
ELEV 3,931 FT
44.4803°N / 103.7830°W
LOCATION · Spearfish, US
N
WIND
110°16 kt
KSPF · 3,931 FT
© OSM · CartoDB

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

METRIC
NOW · 22Z
+6H
+12H
+18H
WIND
110°/16G22
 
 
 
VIS
10+ SM
 
 
 
CEILING
CLR
 
 
 
LAYERS
 
 
 
T / Td
38 / 2
 
 
 
ALTIM
30.08"
 
 
 

// Interpretation

VFR with brisk winds at 110°/16 kt, gusting 22. 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 KSPF 142255Z AUTO 11016G22KT 10SM CLR 38/02 A3008 RMK AO2

KSPF · day 14 at 22:55 UTC · wind from 110° at 16 kt, gusts to 22 kt · visibility 10+ SM · temp 38°C / dewpoint 2°C · altimeter 30.08" Hg · automated station w/ precipitation discriminator

// Runway analysis · computed from current METAR wind

Wind 110° @ 16 ktG22
3 USABLE · 3 AVOID · 1 CAUTION
N
WIND
110°16G22 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
HEADWIND ENDS 3 usable
13 HDG 130° H15 kt X5 kt LEFT PRIMARY · 6,401'
08 HDG 080° H14 kt X8 kt RIGHT 4,003'
04 HDG 040° H5 kt X15 kt RIGHT ⚠ HIGH XW · 68%
TAILWIND ENDS · AVOID 3 ends
22 HDG 220° T5 kt X15 kt LEFT
26 HDG 260° T14 kt X8 kt LEFT
31 HDG 310° T15 kt X5 kt RIGHT
Pattern altitude: 4,931 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 +30°C

7,400FT
+3,469 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS ↘ -200 FT
8,000 6,450 4,900
24h AGO18h12h6hNOW
FIELD ELEV3,931 FT OAT+38°C ISA DELTA+30°C PRESSURE ALT3,769 FT
// Performance equivalent Operating here right now feels like operating at K20V (McElroy Airfield, Kremmling, elev 7,411 ft) on a standard ISA day.
// Aircraft performance impact DANGEROUS
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+74%
-52%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+52%
-33%
Light jetCJ4, Phenom 300, M2
+30%
-22%

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 · 23,123 FT KSPF ELEV · 3,931 FT
// Reported layers (highest → lowest)
CLR
No reported cloud layers — clear sky from surface to reporting ceiling.
// Computed
CEILING HIGHEST LAYER TOTAL COVERAGEclear FREEZING LEVEL23,123 ft VFR MARGINunlimited

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

11:24ZSUNRISE
19:02ZSOLAR NOON
02:39ZSUNSET
03:14ZCIVIL END
CURRENT23:01Z DAYLIGHT REMAINING3h 38m VFR NIGHT BEGINS03:14Z (4h 13m) DAY LENGTH15h 14m
New Moon
ILLUMINATION0% MOONRISE11:32Z MOONSET02:47Z FULL MOON IN15 days

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

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

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