K42J METAR Keystone Heights Airport

Keystone Heights, FloridaElevation 196 ftSmall airport
CURRENT STATUS
MVFR11 min old
Ceiling 1,800 ft, visibility 7 SM, gusts to 19 kt.
FLIGHT CATEGORY
MVFR
ceiling & visibility
WIND
030@10
gust 19 kt
VISIBILITY
7 SM
11.3 km
CEILING
1,800 ft
lowest BKN/OVC
DENSITY ALT
596 ft
+400 ft vs field
CURRENT METAR

Decoded observation

Observed 0935Z (5:35 AM local) · 11 min old

K42J is currently MVFR. Winds are from the northeast at 10 knots gusting 19. Visibility is 7 statute miles. The ceiling is 1,800 feet AGL. The main issue is ceiling 1800 ft agl (mvfr).

WIND
30° at 10 kt, gust 19
Gusts 9 kt above the steady wind.
VISIBILITY
7 statute miles
11.3 km, good.
CEILING & SKY
Ceiling 1,800 ft
Lowest broken or overcast layer.
TEMP / DEWPOINT
20°C / 19°C
68°F / 66°F. 1°C spread.
ALTIMETER
30.16 inHg
1021.3 hPa, above standard.
WEATHER & HAZARDS
LOW CIG, GUST
Ceiling 1800 ft AGL (MVFR).

Codes in this report: AUTO BKN OVC RMK

Hover or tap any group for a plain-English explanation.

REMARKS: DECODED
A01
automated station (A01, equivalent to AO1)
SUGGESTED RISK · TRAINING USE

Suggested risk level: Moderate

›Conditions are MVFR.
›Wind gusting to 19 kt (gust spread 9 kt).
›No TAF available for this airport.

A suggested risk level for training and situational awareness only, not a go/no-go authority. Verify with official sources and apply your personal minimums.

FORECAST & PILOT NOTES · SUPPLEMENTAL

Extended forecast and pilot notes

Current aviation conditions show flight category MVFR, wind from 30° at 10 kt, gusting 19 kt, visibility 7 SM, ceiling 1,800 ft. Forecast suggests sunday mostly sunny, high near 77F, low near 65F, 35% chance of precipitation. Key risks: strong winds in the forecast; thunderstorms in the forecast.

PILOT WEATHER NOTES
Strong winds in the forecastWeather.gov
Sunday: winds up to 27 kt. Re-check crosswind components closer to departure.
Thunderstorms in the forecastWeather.gov
Thursday: Chance Showers And Thunderstorms. Watch for developing convection and plan alternates.
DayConditionsTemp FWindGustsPrecipPilot note
Sunday Mostly Sunny 77/65 NE 17 kt 27 kt 35% Strong winds in the forecast
Monday Mostly Sunny 78/61 NE 15 kt 22 kt 11%
Tuesday Mostly Sunny 80/62 NE 13 kt – 8%
Wednesday Mostly Sunny 80/66 NE 14 kt – 20%
Thursday Chance Showers And Thunderstorms 80/66 NE 16 kt – 32% Thunderstorms in the forecast
Friday Mostly Sunny then Slight Chance Rain Showers 81/65 NE 15 kt – 15%
Saturday Mostly Sunny then Slight Chance Rain Showers 82 NE 14 kt – 16%

Source: National Weather Service (office JAX). Forecast issued 0945Z.

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
2 runways · crosswind ranking
ON-FIELD METAR
NESW05231129 30°30°10G19 kt30°30° 10G1930°
READING THE BARB · SWIPE FOR MORE →
Calm
5 kt
10 kt
15 kt
20 kt
25 kt
30 kt
35 kt
40 kt
45 kt
50 kt
65 kt
75 kt
100 kt
105 kt
Half feather = 5 kt, full = 10 kt, filled pennant = 50 kt; add them up. The staff points the direction the wind blows from.
WIND USED
030° at 10 kt, gust 19
Components computed from the current on-field METAR wind.
RECOMMENDED
RWY 0510 kt headwind · 3 kt crosswind
RUNWAYS BY WIND · best end
05
HEAD
10 kt
CROSS
3 kt L
BEST
11
HEAD
3 kt
CROSS
10 kt L
X-WIND
29
HEAD
3 kt tail
CROSS
10 kt R
X-WIND
23
HEAD
10 kt tail
CROSS
3 kt R
OK
Components are estimates from the current METAR wind and runway heading. Verify with the Chart Supplement and NOTAMs.
RUNWAYS

Runway detail & declared distances

2 runways · longest 5,044 ft

05/23
Dimensions
5,046 x 100 ft
Surface
Asphalt (fair)
Edge lights
MED
RWY 0545°T
REILYes
VGSIPAPI (P2L)
Traffic patternRight
RWY 23225°T
REILYes
VGSIPAPI (P2L)
Traffic patternLeft
11/29
Dimensions
4,899 x 75 ft
Surface
Asphalt (fair)
Edge lights
MED
RWY 11105°T
REILYes
VGSIPAPI (P2L)
Traffic patternLeft
RWY 29285°T
VGSIPAPI (P2L)
Traffic patternRight

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

FIELD CONDITIONS

Performance & density altitude

Density altitude
596 ft
Pressure altitude
-44 ft
Field elevation
196 ft MSL
Temperature
20°C (68°F)
Dewpoint
19°C (66°F)
Altimeter
30.16 inHg

Density altitude estimates how the aircraft performs versus standard atmosphere. Higher density altitude reduces climb performance and increases takeoff distance.

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
2248Z 6:48 PM
Sunrise
1136Z 7:36 AM
Loggable night
2312Z (7:12 PM local) → 1112Z (7:12 AM local)
end of evening to start of morning civil twilight
Position lights required
2248Z (6:48 PM local) → 1136Z (7:36 AM local)
sunset to sunrise (91.209)
Night passenger currency
2348Z (7:48 PM local) → 1036Z (6:36 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

Keystone Heights Airport is in Keystone Heights, Florida. Field elevation 196 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPublicly owned
UseOpen to the public
TypeSmall airport
ManagerCRAIG COON
Manager phone352-473-0031
AttendedALL MON-FRI, 0800–1700
CHARTS & AIRSPACE
ICAO / IATAK42J
SectionalJACKSONVILLE
Center (ARTCC)JACKSONVILLE
Flight service (AFSS)GAINESVILLE
RegionFlorida
CountryUnited States
Coordinates29.8447, -82.0475
Distance from city3 NM N
SERVICES & LIGHTING
FuelJet A+
Control towerNon-towered
Field lightingSee remarks
BeaconSunset to sunrise · White-green (lighted land airport)
CTAF122.700
UNICOM122.700
FREQUENCIES

Communications

118.175
JACKSONVILLE APP/DEP
A/D
124.275
AWOS 3
AWOS
122.7
CTAF/UNICOM
UNIC
122.700
CTAF
CTAF
122.700
UNICOM
UNICOM

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

AIRCRAFT ACTIVITY

K42J traffic patterns

2026-06-12 to 2026-10-23, 13 days observed · data 2026-10-23

Medium confidence
TRAFFIC VOLUME (30-DAY)
AVG LANDINGS/DAY
1.2
AVG OPS/DAY
1.3
Activity trend over 6 days: flat, from 1 to 1 operations per dayOperations trend (6 days)

Busiest day: Wed · Busiest month: Jul

FLEET MIX
Piston single 82%Unknown 18%

Mostly small piston aircraft.

TOP AIRCRAFT TYPES
›C172 (Piston single) · ~2 landings/mo
›P28A (Piston single) · ~2 landings/mo
›C150 (Piston single) · ~1 landings/mo
›EV97 (Unknown) · ~1 landings/mo
›C170 (Piston single) · ~1 landings/mo
LIKELY BASED AIRCRAFT
Low-confidence estimate

Aircraft likely based near this airport (estimate), mostly single-engine piston aircraft.

›P28A (Piston single)

This is an estimate based on repeated flight patterns, not registration data. Do not rely on it to identify specific aircraft or owners.

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

Current flight category at nearby reporting stations.

AIRPORT REMARKS

Operational remarks

›SELF SERVE AVGAS AVBL 24 HRS WITH CREDIT CARD. JET A BY APPOINTMENT. CALL 352-473-0031.
›RWY 5/23 WEIGHT BEARING CAPACITY 2S-155.
›FOR CD CTC JACKSONVILLE APCH AT 904-741-0284.
›RWYS 11/29 RSTRD BY AMGR TO ACFT 12500 LBS GWT OR LESS.
›RSTRD AREA 2903A 1.5 NM RWY 23 END. FLY R TFC TO AVOID.
›ANIMALS ON AND INVOF ARPT.
›SS-SR ACTVT REIL RWY 05, 23, & 11; MIRL RWY 05/23 & 11/29 - CTAF. PAPI OPR CONSLY.
›EXISTED PRIOR TO 1959.
FREQUENTLY ASKED
Does K42J have a METAR?
Yes. K42J has a current METAR observation, decoded into plain English on this page.
Does K42J have a TAF?
When K42J issues a TAF, its decoded forecast timeline loads live on this page; otherwise use the nearest TAF-issuing field as a planning reference.
What is the field elevation at K42J?
K42J sits at 196 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for K42J?
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.