KJST · JST

John Murtha Johnstown Cambria County Airport

Johnstown, PennsylvaniaElevation 2,284 ftMedium airport

CURRENT STATUS

MVFR24 min old

Ceiling 11,000 ft, visibility 5 SM, mist.

FLIGHT CATEGORY

MVFR

ceiling & visibility

WIND

250@11

gust 17 kt

VISIBILITY

5 SM

8 km

CEILING

11,000 ft

lowest BKN/OVC

DENSITY ALT

3,404 ft

+1,120 ft vs field

CURRENT METAR

Decoded observation

Observed 0354Z (11:54 PM local) · 24 min old

KJST is currently MVFR. Winds are from the west at 11 knots gusting 17. Visibility is 5 statute miles. The ceiling is 11,000 feet AGL. Reported weather: rain, mist. The main issue is mist reported.

WIND

250° at 11 kt, gust 17

Gusts 6 kt above the steady wind.

VISIBILITY

5 statute miles

8 km, reduced (MVFR).

CEILING & SKY

Ceiling 11,000 ft

Lowest broken or overcast layer.

TEMP / DEWPOINT

21°C / 19°C

70°F / 66°F. 2°C spread.

ALTIMETER

30.05 inHg

1017.6 hPa, near standard.

WEATHER & HAZARDS

RA, BR, LOW VIS

Rain reported.

Codes in this report: AUTO BR SCT BKN RMK AO2

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

REMARKS: DECODED

AO2

automated station with a precipitation discriminator (can tell rain from snow)

LTG DSNT W AND NW

lightning distant (more than 10 SM away) to the west and to the northwest

RAB22

rain began at :22 past the hour

SLP160

sea-level pressure 1016.0 hPa

P0006

0.06 inches of precipitation in the last hour

T02110194

precise temperature 21.1°C, dew point 19.4°C

TERMINAL AERODROME FORECAST

TAF timeline

Issued 0404Z (12:04 AM local) · valid to 0000Z (8:00 PM local)

KJST forecast starts MVFR at 04Z. Worst period is 04Z to 05Z with IFR possible (TS, CB, LOW VIS). Best period is 18Z to 00Z (VFR). Overall the forecast improves over the period. Watch the TEMPO group: thunderstorms are temporarily forecast.

BKN0707,000 ft · 4 SM

OVC0252,500 ft

OVC008800 ft

OVC0151,500 ft

BKN0404,000 ft

0400Z12:00 AM0800Z4:00 AM1200Z8:00 AM1600Z12:00 PM2000Z4:00 PM0000Z8:00 PM

Codes in this report: BR SCT BKN TEMPO OVC P6SM

Tap any group to decode it.

FAA: no delays reported at JST.

Source: FAA System Operations (ASWS). Operational status only; verify with official FAA sources and NOTAMs.

SUGGESTED RISK · TRAINING USE

Suggested risk level: High

›Conditions are MVFR.

›Mist reported.

›Temporarily forecast: thunderstorm with rain (TSRA).

›Forecast: ceiling 800 ft AGL.

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 250° at 11 kt, gusting 17 kt, visibility 5 SM, ceiling 11,000 ft. Forecast suggests thursday chance rain showers then chance showers and thunderstorms, high near 72F, low near 58F, 84% chance of precipitation. Key risks: thunderstorms in the forecast.

PILOT WEATHER NOTES

Thunderstorms in the forecastWeather.gov

Thursday: Chance Rain Showers then Chance Showers And Thunderstorms. Watch for developing convection and plan alternates.

Day	Conditions	Temp F	Wind	Gusts	Precip	Pilot note
Thursday	Chance Rain Showers then Chance Showers And Thunderstorms	72/58	W 9 kt	18 kt	84%	Thunderstorms in the forecast
Friday	Mostly Sunny	72/59	N 4 kt	–	8%
Saturday	Rain Showers Likely	73/64	SE 8 kt	–	60%
Sunday	Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms	76/60	SW 7 kt	–	24%
Monday	Partly Sunny	76/62	SW 4 kt	–	8%
Tuesday	Mostly Sunny then Chance Showers And Thunderstorms	79/65	SW 8 kt	–	31%
Wednesday	Chance Rain Showers	77	NW 7 kt	–	35%

Source: National Weather Service (office CTP). Forecast issued 0418Z.

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

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

250° at 11 kt, gust 17

Components computed from the current on-field METAR wind.

RECOMMENDED

RWY 239 kt headwind · 6 kt crosswind

RUNWAYS BY WIND · best end

HEAD

9 kt

CROSS

6 kt R

BEST

HEAD

3 kt

CROSS

11 kt L

X-WIND

HEAD

3 kt tail

CROSS

11 kt R

X-WIND

HEAD

9 kt tail

CROSS

6 kt L

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 7,004 ft

05/23

Dimensions

4,387 x 100 ft

Surface

Asphalt (good)

Edge lights

MED

RWY 0539°T

Landing length (LDA)4,387 ft

TORA / TODA / ASDA4,387 / 4,387 / 4,387 ft

REILYes

VGSIPAPI (P4L)

Traffic patternLeft

RWY 23219°T

Landing length (LDA)4,387 ft

TORA / TODA / ASDA4,387 / 4,387 / 4,387 ft

REILYes

VGSIVASI (V4L)

Traffic patternLeft

15/33

Dimensions

7,004 x 150 ft

Surface

Concrete (good)

Edge lights

HIGH

RWY 15144°T

Landing length (LDA)6,698 ft

TORA / TODA / ASDA7,004 / 7,004 / 6,698 ft

VGSIVASI (V4L)

Traffic patternLeft

RWY 33324°T

Landing length (LDA)6,484 ft

TORA / TODA / ASDA7,004 / 7,004 / 6,484 ft

ILSILS

Approach lightsMALSR

VGSIPAPI (P4R)

Traffic patternLeft

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

3,404 ft

Pressure altitude

2,154 ft

Field elevation

2,284 ft MSL

Temperature

21°C (70°F)

Dewpoint

19°C (66°F)

Altimeter

30.05 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

2334Z 7:34 PM

Sunrise

1051Z 6:51 AM

Loggable night

0002Z (8:02 PM local) → 1023Z (6:23 AM local)

end of evening to start of morning civil twilight

Position lights required

2334Z (7:34 PM local) → 1051Z (6:51 AM local)

sunset to sunrise (91.209)

Night passenger currency

0034Z (8:34 PM local) → 0951Z (5:51 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

John Murtha Johnstown Cambria County Airport is in Johnstown, Pennsylvania. Field elevation 2,284 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT

OwnershipPublicly owned

UseOpen to the public

TypeMedium airport

Airline serviceYes

ManagerCORY CREE

Manager phone814-536-0002

AttendedDaily, 0700–2300

CHARTS & AIRSPACE

ICAO / IATAKJST / JST

SectionalDETROIT

Center (ARTCC)CLEVELAND

Flight service (AFSS)ALTOONA

RegionPennsylvania

CountryUnited States

Coordinates40.3161, -78.8339

Distance from city3 NM NE

SERVICES & LIGHTING

Fuel100LL · Jet A · Jet A+

Control towerTowered

Field lightingSee remarks

BeaconSunset to sunrise · White-green (lighted land airport)

CTAF125.750

UNICOM122.950

FREQUENCIES

Communications

118.325

ATIS

121.2

CLEVELAND CNTR

CNTR

125.75

CTAF

121.6

GND

36.5

KEYSTONE OPS ARNG

OPS

122.65

ALTOONA RDO

RDO

125.75

TWR

122.95

UNICOM

UNIC

122.950

UNICOM

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

AIRCRAFT ACTIVITY

Traffic patterns

Aircraft activity data is not available for this airport yet.

NEARBY AIRPORTS

Weather reference stations

Current flight category at nearby reporting stations.

KIDI Indiana County–Jimmy Stewart Airport

23 NM NW

LIFR

KAOO Altoona Blair County Airport

24 NM E

VFR

KLBE Arnold Palmer Regional Airport

26 NM W

MVFR

KCBE Greater Cumberland Regional Airport

42 NM S

VFR

KAGC Allegheny County Airport

50 NM W

MVFR

KDUJ DuBois Regional Airport

52 NM N

IFR

AIRPORT REMARKS

Operational remarks

›ARNG: RSTD PPR 24 HR, CALL DUR NML DUTY HOURS 1300-2130Z++ EXC WKEND AND HOL. CTC OPS C814-532-7720. ALL TFC TO ARNG MILITARY RAMP CTC KEYSTONE OPS: 138.55, 241.35, 46.75, RAMP DECONFLICTION 46.75.

›FOR CD CTC JOHNSTOWN APCH AT 814-532-5960, WHEN APCH CLSD CTC CLEVELAND ARTCC AT 440-774-0213.

›UNICOM FREQ 122.950 AVBL FOR GND SVCS ONLY.

›WHEN TWR CLSD ACTVT MALSR RWY 33; PAPI RWY 33; HIRL RWY 15/33, MIRL RWY 5/23 AND ALL TWY LGTS - CTAF. PAPI RWY 05 UNAVBL WHEN ATCT CLSD.

›PCR VALUE: 630/R/B/W/T

›TWY B BTN RWY 05/23 AND TWY B2 RSTRD TO ACFT WITH WINGSPAN 78 FT OR LESS.

›48 HR PPR FOR UNSKED ACR OPS WITH MORE THAN 30 PAX SEATS; CALL AMGR 814-536-0002.

›PCR VALUE: 240/F/D/X/T

›2S-110.

›DEER & BIRDS ON & INVOF ARPT.

OFFICIAL LINKS & SOURCES

↗Official METAR on AviationWeather.gov

↗Search NOTAMs (official FAA NOTAM Search)

↗Wikipedia

↗KJST on OurAirports

FREQUENTLY ASKED

Does KJST have a METAR?

Yes. KJST has a current METAR observation, decoded into plain English on this page.

Does KJST have a TAF?

Yes, a TAF is issued for KJST; the decoded forecast timeline is shown above.

What is the field elevation at KJST?

KJST sits at 2,284 ft MSL, which factors into the density-altitude estimate on this page.

Is this an official preflight weather briefing for KJST?

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.