21OI

Clearwater Airpark

Batavia, OhioElevation 905 ftSmall airport

SUPPLEMENTAL

N/A

Nearest NWS station (nearest NWS station): 18.6°C · calm. Supplemental, not an aviation observation.

ACTIVE NWS ALERTS

Active weather alerts

Special Weather StatementModerate · Expected · Observed

27 0637Z to 27 1230Z

Ohio; Switzerland; Carroll; Gallatin; Boone; Kenton; Campbell; Owen; Grant; Pendleton; Bracken; Robertson; Mason; Lewis; Delaware; Madison; Franklin; Licking; Greene; Fayette; Pickaway; Fairfield; Warren; Clinton; Ross; Hocking; Hamilton; Clermont; Brown; Highland; Adams; Pike; Scioto

Light winds and clear skies has led to the development of fog this morning. There will be some patchy locations where dense fog will form. Be prepared for rapidly changing visibilities this morning. The fog is expected to improve quickly after sunrise.

Alerts from the National Weather Service. For situational awareness only; always confirm against an official briefing.

SUPPLEMENTAL · nearest NWS station

WIND

Calm

no steady wind

VISIBILITY

1.80 SM

2.9 km

TEMP

18.6°C

NWS station

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 1.8 SM, temperature 18.6C. Treat this as supplemental, not an aviation observation. Forecast suggests monday areas of fog then mostly sunny, high near 90F, low near 72F, 91% chance of precipitation. Key risks: thunderstorms in the forecast.

PILOT WEATHER NOTES

Thunderstorms in the forecastWeather.gov

Tuesday: Chance Showers And Thunderstorms then Partly Sunny. Watch for developing convection and plan alternates.

Day	Conditions	Temp F	Wind	Gusts	Precip	Pilot note
Monday	Areas Of Fog then Mostly Sunny	90/72	SW 6 kt	–	91%
Tuesday	Chance Showers And Thunderstorms then Partly Sunny	86/65	W 12 kt	–	52%	Thunderstorms in the forecast
Wednesday	Sunny	82/61	N 10 kt	–	0%
Thursday	Sunny	84/63	N 6 kt	–	1%
Friday	Mostly Sunny	86/66	SE 3 kt	–	18%
Saturday	Chance Rain Showers then Chance Showers And Thunderstorms	84/66	E 4 kt	–	37%
Sunday	Chance Showers And Thunderstorms	84	N 7 kt	–	33%

Source: National Weather Service (office ILN). Forecast issued 0911Z.

AIR QUALITY

Air quality index

60 Moderate

Primary pollutant: PM2.5

Ozone 15 · PM2.5 60 · PM10 19

Cincinnati, OH · observed 2026-07-27 04:00 EST · Source: AirNow (US EPA). Air-quality data for situational awareness, not an official health advisory.

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 21OI. Enter a runway number or heading to estimate wind components.

RUNWAYS

Runway detail & declared distances

3 runways · longest 2,650 ft

17/35

Dimensions

1,860 x 50 ft

Surface

Turf

RWY 17

RWY 35

07/25

Dimensions

2,650 x 30 ft

Surface

Turf

RWY 07

RWY 25

Dimensions

100 x 100 ft

Surface

Turf

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

905 ft MSL

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

DAYLIGHT & NIGHT

Sun & logging windows

Sunset

0053Z 8:53 PM

Sunrise

1032Z 6:32 AM

Loggable night

0124Z (9:24 PM local) → 1001Z (6:01 AM local)

end of evening to start of morning civil twilight

Position lights required

0053Z (8:53 PM local) → 1032Z (6:32 AM local)

sunset to sunrise (91.209)

Night passenger currency

0153Z (9:53 PM local) → 0932Z (5:32 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

Clearwater Airpark is in Batavia, Ohio. Field elevation 905 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT

OwnershipPrivately owned

UsePrivate use

TypeSmall airport

ManagerC. W. STANDRING

Manager phone513-625-9653

AttendedMAY-SEP ALL, DAWN–DUSK

CHARTS & AIRSPACE

ICAO / IATA21OI

SectionalCINCINNATI

Center (ARTCC)INDIANAPOLIS

Flight service (AFSS)DAYTON

RegionOhio

CountryUnited States

Coordinates39.1281, -84.0927

Distance from city2 NM E

SERVICES & LIGHTING

Control towerNon-towered

UNICOM123.000

FREQUENCIES

Communications

123.000

UNICOM

Not all tower/ground/approach frequencies are in our datasets. Verify with the FAA Chart Supplement.

AIRCRAFT ACTIVITY

21OI traffic patterns

2026-06-30 to 2026-06-30, 1 days observed · data 2026-07-25

Low confidence

TRAFFIC VOLUME (30-DAY)

AVG LANDINGS/DAY

AVG OPS/DAY

Operations trend (1 days)

Busiest day: Tue · Busiest month: Jun

FLEET MIX

Piston single 100%

Mostly small piston aircraft.

TOP AIRCRAFT TYPES

›C172 (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

Nearby airports

US-0834 Mercy Clermont Hospital Heliport

4 NM SW

OI40 Hallelujah Field

5 NM N

KI69 Clermont County Airport

6 NM SW

3OH7 Creager Airport

6 NM S

US-1110 Old Boston Airport

6 NM S

OH65 Hickory Grove Airpark

7 NM N

AIRPORT REMARKS

Operational remarks

›ULTRALIGHT ACTIVITY IN AREA.

›HELIPORT DETERMINATION; CONDITIONAL; APP/DEP TO HELIPAD IS IN AREA 60-270 DEGS; AREA IS APPROPRIATELY MARKED; WIND INDICATOR IS MAINTAINED.

›FOR CD CTC CINCINNATI APCH AT 859-372-6440

OFFICIAL LINKS & SOURCES

↗Search NOTAMs (official FAA NOTAM Search)

↗21OI on OurAirports

FREQUENTLY ASKED

Does 21OI have a METAR?

No on-field METAR is issued for 21OI. This page uses the nearest reporting station as a reference.

Does 21OI have a TAF?

No TAF is issued directly for 21OI. Use the nearest TAF-issuing field as a planning reference.

What is the field elevation at 21OI?

21OI sits at 905 ft MSL, which factors into the density-altitude estimate on this page.

Is this an official preflight weather briefing for 21OI?

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.