WxDecoder

US-3437 Weather Christus Santa Rosa Hospital San Marcos

San Marcos, TexasElevation 676 ftHeliport
OFF-FIELD REFERENCE
Nearest report: KBAZ · 10 NM SW · 20 min old
Ceiling 7,000 ft, visibility 10 SM.
No on-field report, so no field flight category. Conditions at the field may differ.
OFF-FIELD REFERENCE · KBAZ
WIND
070@6
steady
VISIBILITY
10 SM
16.1 km
CEILING
7,000 ft
lowest BKN/OVC
FORECAST & PILOT NOTES · SUPPLEMENTAL

Extended forecast and pilot notes

No aviation METAR is published for this airport. The nearest National Weather Service station reports wind from 90° at 5 kt, visibility 10 SM, temperature 19C. Treat this as supplemental, not an aviation observation. Forecast suggests tonight mostly cloudy, low near 63F, 2% chance of precipitation. Key risks: thunderstorms in the forecast.

PILOT WEATHER NOTES
Thunderstorms in the forecastWeather.gov
Tuesday: Slight Chance Rain Showers then Chance Showers And Thunderstorms. Watch for developing convection and plan alternates.
DayConditionsTemp FWindGustsPrecipPilot note
Tonight Mostly Cloudy 63 0 kt – 2%
Tuesday Slight Chance Rain Showers then Chance Showers And Thunderstorms 82/64 E 4 kt – 28% Thunderstorms in the forecast
Wednesday Slight Chance Rain Showers then Chance Showers And Thunderstorms 84/66 ESE 4 kt – 32%
Thursday Chance Showers And Thunderstorms 80/64 ESE 4 kt – 51%
Friday Chance Showers And Thunderstorms 78/64 ESE 9 kt 17 kt 54%
Saturday Slight Chance Rain Showers 83/66 SE 4 kt – 15%
Sunday Mostly Sunny 86/68 SSE 4 kt – 5%
Monday Mostly Sunny 86 S 9 kt – 7%

Source: National Weather Service (office EWX). Forecast issued 0211Z.

Radar

Radar data: NOAA/NWS MRMS composite reflectivity. For situational awareness only, not a substitute for an official weather briefing.

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RUNWAYS & WIND
Crosswind calculator
No runway layout is available for US-3437. Enter a runway number or heading to estimate wind components.
FIELD CONDITIONS

Field elevation

Field elevation
676 ft MSL

Density and pressure altitude need a current temperature and altimeter from the METAR.

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
2350Z 6:50 PM
Sunrise
1241Z 7:41 AM
Loggable night
0014Z (7:14 PM local) → 1217Z (7:17 AM local)
end of evening to start of morning civil twilight
Position lights required
2350Z (6:50 PM local) → 1241Z (7:41 AM local)
sunset to sunrise (91.209)
Night passenger currency
0050Z (7:50 PM local) → 1141Z (6:41 AM local)
1 hr after sunset to 1 hr before sunrise (61.57(b))

FAA definitions, shown in Zulu with airport-local time. Verify for your operation.

AIRPORT INFORMATION

Facility & services

Christus Santa Rosa Hospital San Marcos is in San Marcos, Texas. Field elevation 676 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
TypeHeliport
CHARTS & AIRSPACE
ICAO / IATAUS-3437
RegionTexas
CountryUnited States
Coordinates29.8528, -97.9467
SERVICES & LIGHTING
Control towerNon-towered
AIRCRAFT ACTIVITY

US-3437 traffic patterns

2026-07-19 to 2026-10-25, 6 days observed · data 2026-10-25

Low confidence
TRAFFIC VOLUME (30-DAY)
AVG LANDINGS/DAY
0.5
AVG OPS/DAY
1
Activity trend over 2 days: flat, from 1 to 1 operations per dayOperations trend (2 days)

Busiest day: Fri · Busiest month: Sep

FLEET MIX
Helicopter 75%Unknown 25%

Mostly rotorcraft.

TOP AIRCRAFT TYPES
›R22 (Helicopter) · ~3 landings/mo
›GX (Unknown) · ~1 landings/mo
›B407 (Helicopter) · ~0 landings/mo
Data limitations (4)
›ADS-B coverage is incomplete; counts are an observed lower bound, not official totals.
›Some aircraft do not transmit usable ADS-B and are not counted.
›Aircraft types and based estimates are inferred and may be wrong.
›This is not official ATC, FAA, or airport data.
NEARBY AIRPORTS

Weather reference stations

US-3437 has no on-field report. Nearest reporting station: KBAZ (10 NM SW, VFR).

KBAZ New Braunfels National Airport
10 NM SW
VFR
KAUS Austin Bergstrom International Airport
25 NM NE
VFR
KRND Randolph Air Force Base
26 NM SW
VFR
KSAT San Antonio International Airport
33 NM SW
VFR
KSSF Stinson Municipal Airport
41 NM SW
VFR
KSKF Lackland Air Force Base
43 NM SW
VFR
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗US-3437 on OurAirports
FREQUENTLY ASKED
Does US-3437 have a METAR?
No on-field METAR is issued for US-3437. This page uses the nearest reporting station as a reference.
Does US-3437 have a TAF?
No TAF is issued directly for US-3437. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at US-3437?
US-3437 sits at 676 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for US-3437?
No. wxdecoder.com is for education and situational awareness only. It is not an official weather briefing or a substitute for official sources, NOTAM review, and pilot judgment.
This app is for aviation weather education, training, and situational awareness only. It is not a substitute for an official weather briefing, approved flight-planning software, flight service, dispatch procedures, current FAA regulations, or pilot judgment. Always verify weather with official sources before flight.