WxDecoder

03IS Weather OSF St Anthony's Health Center Heliport

Alton, IllinoisElevation 580 ftHeliport
OFF-FIELD REFERENCE
Nearest report: KALN · 6 NM E · 0 min old
No ceiling, visibility 10 SM.
No on-field report, so no field flight category. Conditions at the field may differ.
OFF-FIELD REFERENCE · KALN
WIND
Calm
no steady wind
VISIBILITY
10 SM
16.1 km
CEILING
None
no BKN/OVC layer
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 calm, visibility 10 SM, temperature 14C. Treat this as supplemental, not an aviation observation. Forecast suggests tonight mostly cloudy, low near 52F, 1% chance of precipitation. Key risks: no significant hazards are highlighted right now, but always confirm against an official briefing.

DayConditionsTemp FWindGustsPrecipPilot note
Tonight Mostly Cloudy 52 SE 2 kt – 1%
Monday Partly Sunny 77/51 S 5 kt – 2%
Tuesday Partly Sunny 76/53 S 7 kt – 0%
Wednesday Sunny 79/55 S 8 kt – 0%
Thursday Sunny 83/57 S 7 kt – 3%
Friday Mostly Sunny 81/59 S 7 kt – 12%
Saturday Chance Rain Showers 76/59 S 8 kt – 70%
Sunday Chance Rain Showers 76 SW 8 kt – 28%

Source: National Weather Service (office LSX). Forecast issued 0248Z.

Radar

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

OUR HEADSET PICK · NOT SPONSORED

DC

David Clark DC ONE-X

Not sponsored, just the headset we'd buy ourselves: the DC ONE-X, with hybrid noise canceling, Bluetooth, and 30+ hour battery. And David Clark's A+ customer service is the real reason we recommend them.

Visit David Clark
RUNWAYS & WIND
Crosswind calculator
No runway layout is available for 03IS. Enter a runway number or heading to estimate wind components.
RUNWAYS

Runway detail & declared distances

1 runway · longest 40 ft

H1
Dimensions
40 x 40 ft
Surface
Concrete
Edge lights
PERI
RWY H1

Runway data from the FAA NASR dataset (effective 2026-06-11). Verify with the current Chart Supplement and NOTAMs.

FIELD CONDITIONS

Field elevation

Field elevation
580 ft MSL

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

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
2308Z 6:08 PM
Sunrise
1221Z 7:21 AM
Loggable night
2336Z (6:36 PM local) → 1153Z (6:53 AM local)
end of evening to start of morning civil twilight
Position lights required
2308Z (6:08 PM local) → 1221Z (7:21 AM local)
sunset to sunrise (91.209)
Night passenger currency
0008Z (7:08 PM local) → 1121Z (6:21 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

OSF St Anthony's Health Center Heliport is in Alton, Illinois. Field elevation 580 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPrivately owned
UsePrivate use
TypeHeliport
ManagerSHERRIE DURBIN
Manager phone(618) 465-4505
AttendedUNATNDD
CHARTS & AIRSPACE
ICAO / IATA03IS
SectionalST LOUIS
Center (ARTCC)KANSAS CITY
Flight service (AFSS)SAINT LOUIS
RegionIllinois
CountryUnited States
Coordinates38.9050, -90.1734
Distance from city0 NM N
SERVICES & LIGHTING
Control towerNon-towered
Field lightingSunset to sunrise
BeaconSunset to sunrise · White-green-yellow (heliport)
AIRCRAFT ACTIVITY

03IS traffic patterns

2026-09-26 to 2026-10-05, 2 days observed · data 2026-10-23

Low confidence
TRAFFIC VOLUME (30-DAY)
AVG LANDINGS/DAY
1
AVG OPS/DAY
1.5
Activity trend over 2 days: falling, from 2 to 1 operations per dayOperations trend (2 days)

Busiest day: Sat · Busiest month: Sep

FLEET MIX
Helicopter 50%Piston single 50%

Mostly rotorcraft.

TOP AIRCRAFT TYPES
›B06 (Helicopter) · ~1 landings/mo
›ST75 (Piston single) · ~1 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

03IS has no on-field report. Nearest reporting station: KALN (6 NM E, VFR).

KALN St Louis Regional Airport
6 NM E
VFR
KSTL St. Louis Lambert International Airport
13 NM SW
VFR
KCPS St Louis Downtown Airport
20 NM S
VFR
KSUS Spirit of St Louis Airport
27 NM SW
VFR
KBLV Scott AFB/Midamerica Airport
27 NM SE
VFR
KSAR Sparta Community Airport - Hunter Field
51 NM SE
VFR
AIRPORT REMARKS

Operational remarks

›PRVDD ALL APP/DEP ROUTES 155-315 DEGS; TKOF/LNDG AREA IS MKD; NON-OBSTG WIND INDICATOR; CAUTION & WARNING SIGNS POSTED.
›MEDICAL.
›FOR CD CTC ST LOUIS APCH AT 314-890-1018.
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗03IS on OurAirports
FREQUENTLY ASKED
Does 03IS have a METAR?
No on-field METAR is issued for 03IS. This page uses the nearest reporting station as a reference.
Does 03IS have a TAF?
No TAF is issued directly for 03IS. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at 03IS?
03IS sits at 580 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for 03IS?
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.