WxDecoder

12IS Weather Mercer County Hospital Heliport

Aledo, IllinoisElevation 729 ftHeliport
OFF-FIELD REFERENCE
Nearest report: KMLI · 18 NM NE · 22 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 · KMLI
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 15C. Treat this as supplemental, not an aviation observation. Forecast suggests tonight mostly cloudy, low near 53F, 1% chance of precipitation. Key risks: thunderstorms in the forecast.

PILOT WEATHER NOTES
Thunderstorms in the forecastWeather.gov
Thursday: Chance Showers And Thunderstorms. Watch for developing convection and plan alternates.
DayConditionsTemp FWindGustsPrecipPilot note
Tonight Mostly Cloudy 53 0 kt – 1%
Monday Partly Sunny 73/51 E 4 kt – 3%
Tuesday Mostly Cloudy 73/56 SE 9 kt – 6%
Wednesday Partly Sunny 76/58 S 9 kt – 27%
Thursday Chance Showers And Thunderstorms 77/57 SW 9 kt – 46% Thunderstorms in the forecast
Friday Chance Showers And Thunderstorms 77/58 S 9 kt – 46%
Saturday Rain Showers Likely 72/57 S 9 kt – 59%
Sunday Slight Chance Rain Showers 71 W 9 kt – 24%

Source: National Weather Service (office DVN). Forecast issued 0113Z.

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 12IS. Enter a runway number or heading to estimate wind components.
RUNWAYS

Runway detail & declared distances

1 runway · longest 50 ft

H1
Dimensions
50 x 50 ft
Surface
Concrete
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
729 ft MSL

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

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
2307Z 6:07 PM
Sunrise
1226Z 7:26 AM
Loggable night
2336Z (6:36 PM local) → 1158Z (6:58 AM local)
end of evening to start of morning civil twilight
Position lights required
2307Z (6:07 PM local) → 1226Z (7:26 AM local)
sunset to sunrise (91.209)
Night passenger currency
0007Z (7:07 PM local) → 1126Z (6:26 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

Mercer County Hospital Heliport is in Aledo, Illinois. Field elevation 729 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPublicly owned
UsePrivate use
TypeHeliport
ManagerNATHAN HALL
Manager phone309-281-4930
AttendedContinuous (24 hours)
CHARTS & AIRSPACE
ICAO / IATA12IS
SectionalCHICAGO
Center (ARTCC)CHICAGO
Flight service (AFSS)KANKAKEE
RegionIllinois
CountryUnited States
Coordinates41.2061, -90.7594
Distance from city1 NM N
SERVICES & LIGHTING
Control towerNon-towered
BeaconSunset to sunrise · White-green-yellow (heliport)
AIRCRAFT ACTIVITY

12IS traffic patterns

2026-07-30 to 2026-07-30, 1 days observed · data 2026-10-23

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

Busiest day: Thu · Busiest month: Jul

FLEET MIX

Mostly turboprop aircraft.

TOP AIRCRAFT TYPES
›UNKN (Turboprop) · ~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

12IS has no on-field report. Nearest reporting station: KMLI (18 NM NE, VFR).

KMLI Quad City International Airport
18 NM NE
VFR
KMUT Muscatine Municipal Airport
20 NM NW
VFR
KGBG Galesburg Municipal Airport
22 NM SE
VFR
KDVN Davenport Municipal Airport
25 NM N
VFR
KBRL Southeast Iowa Regional Airport
30 NM SW
VFR
KMPZ Mount Pleasant Municipal Airport
37 NM SW
VFR
AIRPORT REMARKS

Operational remarks

›OPNS CONDUCTED FM 080 DEG TO 110 DEG & FM 200 DEG TO 260 DEG; AREA MKD; WIND INDICATOR MNTD; NO NGT OPNS UNLESS AREA IS LGTD.
›FOR CD CTC CHICAGO ARTCC AT 630-906-8921.
›EAST-WEST TREE LINE 85' NORTH.
›MEDICAL USE.
›EXT 159.
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗12IS on OurAirports
FREQUENTLY ASKED
Does 12IS have a METAR?
No on-field METAR is issued for 12IS. This page uses the nearest reporting station as a reference.
Does 12IS have a TAF?
No TAF is issued directly for 12IS. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at 12IS?
12IS sits at 729 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for 12IS?
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.