// Station · 55m ago
KHYI
San Marcos Regional Airport
CAT VFR
WIND 220° / 3 kt
VIS 10+ SM
CEILING CLR
T/Td 17.8°C / 17.2°C
ALTIM 29.84 inHg
ELEV 597 FT
29.8927°N / 97.8630°W
LOCATION · San Marcos, US
WIND
220°3 kt
KHYI · 597 FT
© OSM · CartoDB
// Current + 24h forecast · METAR loaded · TAF loading…
METRIC
NOW · 08Z
+6H
+12H
+18H
WIND
220°/3
VIS
10+ SM
CEILING
CLR
LAYERS
—
T / Td
18 / 17
ALTIM
29.84"
// Interpretation
VFR with light winds at 220°/3 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…
// Want this glance-able on 10 airports? METAR Deck →// Raw observation METAR string + decoded
METAR KHYI 270856Z 22003KT 10SM CLR 18/17 A2984 RMK AO2 SLP097 60000 T01780172 53002
KHYI · day 27 at 08:56 UTC · wind from 220° at 3 kt · visibility 10+ SM · temp 18°C / dewpoint 17°C · altimeter 29.84" Hg · automated station w/ precipitation discriminator · sea-level pressure 1009.7 mb
// Runway analysis · computed from current METAR wind
Wind 220° @ 3 kt
ALL USABLE · WINDS CALM
WIND
220°3 kt
HEADWIND
CAUTION · HIGH XW
AVOID · TAILWIND
ALL RUNWAYS · CALM WINDS
6 ends
08
HDG 080°
—CALM
——
6,330'
26
HDG 260°
—CALM
——
6,330'
13
HDG 130°
—CALM
——
5,601'
31
HDG 310°
—CALM
——
5,601'
17
HDG 170°
—CALM
——
5,214'
35
HDG 350°
—CALM
——
5,214'
Pattern altitude: 1,597 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 +4°C
1,200FT
+603 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS
↘ -100 FT
24h AGO18h12h6hNOW
FIELD ELEV597 FT
OAT+18°C
ISA DELTA+4°C
PRESSURE ALT674 FT
// Performance equivalent
Operating here right now feels like operating at KDLF
(Laughlin Air Force Base, Del Rio, elev 1,082 ft)
on a standard ISA day.
// Aircraft performance impact
MINOR
TAKEOFF ROLL
CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+12%
-8%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+8%
-5%
Light jetCJ4, Phenom 300, M2
+5%
-4%
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
// Sun & Moon · times in Z · bar = local day (UTC-7)
11:33ZSUNRISE
18:30ZSOLAR NOON
01:26ZSUNSET
01:52ZCIVIL END
CURRENT09:51Z
DAYLIGHT REMAINING15h 34m
VFR NIGHT BEGINS01:52Z (16h 01m)
DAY LENGTH13h 52m
Waxing Gibbous
ILLUMINATION82%
MOONRISE20:14Z
MOONSET10:06Z
FULL MOON IN4 days
// Nearest reporting stations · 5 shown · 60 NM radius
KBAZ
VFR
New Braunfels National Airport · New Braunfels
- WIND
- 180° / 3 kt
- VIS
- 10+ SM
- CEILING
- CLR
- DIST
- 15 NM SW
- AGE
- 1h 0m ago
KAUS
VFR
→
MVFR
12Z
Austin Bergstrom International Airport · Austin
- WIND
- 240° / 4 kt
- VIS
- 10+ SM
- CEILING
- BKN200
- DIST
- 21 NM NE
- AGE
- 58m ago
KRND
VFR
→
IFR
11Z
Randolph Air Force Base · Universal City
- WIND
- 160° / 6 kt
- VIS
- 10+ SM
- CEILING
- CLR
- DIST
- 31 NM SW
- AGE
- 56m ago
KSAT
VFR
→
MVFR
12Z
San Antonio International Airport · San Antonio
- WIND
- 130° / 6 kt
- VIS
- 10+ SM
- CEILING
- BKN070
- DIST
- 38 NM SW
- AGE
- 1h 0m ago
KSSF
VFR
→
MVFR
11Z
Stinson Municipal Airport · San Antonio
- WIND
- 100° / 5 kt
- VIS
- 10+ SM
- CEILING
- SCT009
- DIST
- 46 NM SW
- AGE
- 58m ago
// Area map · 60 NM radius · CartoDB Dark Matter + aeronautical overlay
© OpenStreetMap · CartoDB · OpenAIP
//
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