WxDecoder

31IS Weather Mason District Hospital Heliport

Havana, IllinoisElevation 479 ftHeliport
OFF-FIELD REFERENCE
Nearest report: KPIA · 27 NM NE · 20 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 · KPIA
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 16C. Treat this as supplemental, not an aviation observation. Forecast suggests tonight mostly cloudy, low near 51F, 2% chance of precipitation. Key risks: thunderstorms in the forecast.

PILOT WEATHER NOTES
Thunderstorms in the forecastWeather.gov
Friday: Chance Showers And Thunderstorms. Watch for developing convection and plan alternates.
DayConditionsTemp FWindGustsPrecipPilot note
Tonight Mostly Cloudy 51 SSE 3 kt – 2%
Monday Partly Sunny 76/50 SE 3 kt – 5%
Tuesday Mostly Cloudy 76/53 SSE 6 kt – 7%
Wednesday Mostly Sunny 78/56 S 7 kt – 7%
Thursday Sunny 82/56 SSW 7 kt – 27%
Friday Chance Showers And Thunderstorms 80/57 S 5 kt – 27% Thunderstorms in the forecast
Saturday Rain Showers Likely 75/57 S 6 kt – 60%
Sunday Chance Rain Showers 74 SW 6 kt – 31%

Source: National Weather Service (office ILX). Forecast issued 0114Z.

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 31IS. Enter a runway number or heading to estimate wind components.
RUNWAYS

Runway detail & declared distances

1 runway · longest 42 ft

H1
Dimensions
42 x 42 ft
Surface
Concrete (fair)
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
479 ft MSL

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

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
2306Z 6:06 PM
Sunrise
1222Z 7:22 AM
Loggable night
2334Z (6:34 PM local) → 1154Z (6:54 AM local)
end of evening to start of morning civil twilight
Position lights required
2306Z (6:06 PM local) → 1222Z (7:22 AM local)
sunset to sunrise (91.209)
Night passenger currency
0006Z (7:06 PM local) → 1122Z (6:22 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

Mason District Hospital Heliport is in Havana, Illinois. Field elevation 479 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPrivately owned
UsePrivate use
TypeHeliport
ManagerSCOTT SEWARD
Manager phone(309) 543-8574
AttendedContinuous (24 hours)
CHARTS & AIRSPACE
ICAO / IATA31IS
SectionalCHICAGO
Center (ARTCC)CHICAGO
Flight service (AFSS)KANKAKEE
RegionIllinois
CountryUnited States
Coordinates40.3078, -90.0546
Distance from city0 NM N
SERVICES & LIGHTING
Control towerNon-towered
BeaconSee remarks · White-green-yellow (heliport)
AIRCRAFT ACTIVITY

31IS traffic patterns

2026-10-18 to 2026-10-18, 1 days observed · data 2026-10-23

Low confidence
TRAFFIC VOLUME (30-DAY)
AVG LANDINGS/DAY
0
AVG OPS/DAY
1
Operations trend (1 days)

Busiest day: Sun · Busiest month: Oct

FLEET MIX

Mostly rotorcraft.

TOP AIRCRAFT TYPES
›EC45 (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

31IS has no on-field report. Nearest reporting station: KPIA (27 NM NE, VFR).

KPIA General Wayne A. Downing Peoria International Airport
27 NM NE
VFR
KMQB Macomb Municipal Airport
30 NM NW
VFR
KSPI Abraham Lincoln Capital Airport
33 NM SE
VFR
KIJX Jacksonville Municipal Airport
33 NM S
VFR
KGBG Galesburg Municipal Airport
42 NM NW
VFR
KBMI Central Illinois Regional Airport at Bloomington-Normal
53 NM E
VFR
AIRPORT REMARKS

Operational remarks

›NUMEROUS OBSTRUCTIONS ALL QUADRANTS.
›FLOOD LGTS.
›FOR CD CTC ST LOUIS APCH AT 314-890-1017.
›ALL APP/DEP ROUTES FROM 360 DEG CLOCKWISE TO 270 DEG; TAKEOFF/LDG AREA APPROPRIATELY MARKED; NON-OBSTRUCTING WIND INDICATOR MAINTAINED.
›24 HRS
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗31IS on OurAirports
FREQUENTLY ASKED
Does 31IS have a METAR?
No on-field METAR is issued for 31IS. This page uses the nearest reporting station as a reference.
Does 31IS have a TAF?
No TAF is issued directly for 31IS. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at 31IS?
31IS sits at 479 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for 31IS?
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.