KHYI — San Marcos Rgnl
Austin, TX · field elevation 595 ft · Class D airspace · ATCT
KHYI current weather Live
VFR ceiling above 3,000 ft and visibility better than 5 statute miles
METAR KHYI 252356Z 12005KT 10SM CLR 33/15 A2998 RMK AO2 SLP142 T03330150 10367 20333 55003
- Wind
- from 120° at 5 kt
- Visibility
- 10 statute miles
- Sky
- clear below 12,000 ft
- Temperature
- 33 °C / dewpoint 15 °C
- Altimeter
- 29.98 inHg
- Density altitude
- 2,835 ft · pressure altitude 535 ft
- Observed
- 8 minutes ago
Learn: reading a METAR, the weather course
Wind on each runway
Wind 120° at 5 kt. Positive is a headwind.
| Runway | Head / tail | Crosswind |
|---|---|---|
| 13 | 5 kt head | 1 kt from the left |
| 08 | 4 kt head | 3 kt from the right |
| 17 | 3 kt head | 4 kt from the left |
| 35 | 3 kt tail | 4 kt from the right |
| 26 | 4 kt tail | 3 kt from the left |
| 31 | 5 kt tail | 1 kt from the right |
Calculator: crosswind components
48-hour trend
Eight days of observations, each readable in full — in the EFB →
Calculators: density altitude, pressure altitude, cloud base, crosswind
Forecast
No TAF is issued for KHYI — forecasters write them for about 700 US terminals, and this is not one.
MOS model forecasts for KHYI — in the EFB →
Airport information
- Coordinates
- 29.89275, -97.86300
- Elevation
- 595 ft MSL
- Surface airspace
-
Class D
Two-way radio communication must be established before you enter, while the tower is open.
The same callsign rule as Class C. When the tower closes the airspace usually reverts to Class E, or to Class G where no surface area is charted — the Chart Supplement entry says which, and the hours are on the sectional. A surface area normally extends to 2,500 ft above the field, with the ceiling charted in a dashed blue box as a number in hundreds of feet.
- Sunrise / sunset
- 1222Z / 0023Z
- Tower hours
- 0700-2100 EFF 01 APR 2021
- Magnetic variation
- 7°E (1985)
- Fuel
- 100LL,A+
- Sectional
- San Antonio
- County
- Caldwell, TX
Airport diagram
Everything else KHYI publishes — in the EFB →
Runways
| Runway | Length (ft) | Width (ft) | Surface | Lights |
|---|---|---|---|---|
| 08/26 | 6,330 | 100 | ASPH | MED |
| 13/31 | 5,601 | 100 | ASPH | MED |
| 17/35 | 5,214 | 100 | ASPH | MED |
Frequencies
- ATIS
- 120.825
- Tower 0700-2100 EFF 01 APR 2021
- 126.825
- Ground
- 120.125
- Clearance WHEN HYI TWR CLSD
- 121.35
- Clearance
- 120.125
- CTAF
- 126.825
- Approach
- 119.0
Published procedures
- 6 approaches — RNAV (GPS)
- 7 departures published
- 4 arrivals published
Read the approach plates georeferenced — in the EFB →
Nearby airports
- KBAZ New Braunfels Ntl15 nm
- KSEQ Randolph AFB Aux20 nm
- KAUS Austin-Bergstrom Intl21 nm
- KRND Randolph AFB31 nm
- KEDC Austin Exec34 nm
- KRYW Lago Vista Tx/Rusty Allen37 nm
Elsewhere
- Make a poster of the KHYI airport diagram or an approach plate
- Other Texas airports
- How to read a METAR
- What VFR, MVFR, IFR and LIFR actually mean
- Live records — the strongest winds and lowest ceilings in the country right now
Weather from METAR and TAF, National Weather Service Aviation Weather Center. Airport, runway, frequency and procedure data from the FAA NASR 28-day cycle; charts from the FAA d-TPP. Advisory only — this is not a weather briefing.