John Murtha Johnstown Cambria County Airport (KJST) Aviation Weather, METAR, TAF & ATIS Alerts
Live aviation weather for John Murtha Johnstown Cambria County Airport in Johnstown, PA, including METAR, TAF, flight category, wind, visibility, ceiling, altimeter, runway crosswinds, and Telegram airport alerts.
John Murtha Johnstown Cambria County Airport (KJST) is a regional airport serving Johnstown, PA at 2,284 ft. KJST reports its own METAR and publishes a TAF, decoded live on this page as flight category, wind, visibility, ceiling and altimeter. Its 6 runways (05, 10, 15, 23), longest 7,004 ft, are checked against the current wind in the crosswind table below. The official FAA airport diagram is at the bottom of the page. Track KJST in the ATIS Alerts Telegram bot to get a message when a new METAR changes the picture: flight category, wind, or ceiling past your selected minimums.
Wind from the southwest (230°) at 3 kt, visibility 10+ statute miles, broken clouds at 1,900 ft, broken clouds at 3,800 ft, overcast at 7,000 ft, temperature 19°C (67°F), altimeter 30.00 inHg. Conditions are Marginal VFR (MVFR), ceiling 1,900 ft.
SPECI KJST 130807Z AUTO 23003KT 10SM -RA BKN019 BKN038 OVC070 19/19 A3000 RMK AO2 P0000 T01940189
What changed at KJST?
Since the 0754Z (3:54 AM EDT) report, compared automatically against the latest METAR.
- Ceiling dropped from 4,000 ft to 1,900 ft.
- Visibility improved from 4 SM to 10 SM.
- Mist ended (BR).
The latest report is an off-schedule special (SPECI), issued because conditions changed significantly. What is a SPECI? →
This is exactly what ATIS Alerts watches for you: get a Telegram message when KJST's weather changes, free →
Current pilot readout for KJST
KJST is currently MVFR with winds from 230° at 3 knots, visibility 10+ statute miles, and a 1,900 ft ceiling. The strongest crosswind component is currently on runway 15, about 3 knots. Density altitude is approximately 3,250 ft (field elevation 2,284 ft). Review the latest TAF below for forecast changes before departure.
⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.
New to aviation weather? How to read a METAR → · What VFR/MVFR/IFR mean → · Decode any METAR/TAF → · Density altitude calculator →
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Nearby Pilot Hotel Deals
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Runway wind check
Estimated head/tailwind and crosswind for each runway end from the current reported wind.
Use this section to quickly compare current wind alignment across available runways at KJST. This is intended as a planning aid only and should not replace official performance calculations or pilot judgment.
| Runway | Length | Surface | Head / Tail | Crosswind |
|---|---|---|---|---|
| 23FAV | 4,387 ft | ASP | 3 kt head | 1 kt right |
| 15 | 7,004 ft | ASP | 0 kt head | 3 kt right |
| 33 | 7,004 ft | ASP | 0 kt head | 3 kt left |
| 05 | 4,387 ft | ASP | 3 kt tail | 1 kt left |
Open the crosswind calculator to try your own wind and runway numbers →
24-hour trend
Wind, ceiling and flight category over the last 24 hours.
Over the last 23 h: wind 6→3 kt, ceiling 900 ft → 1,900 ft.
KJST weather radar
Live NEXRAD + lightning, with a 4-hour future-radar forecast. Drag to pan, tap ⚡ to toggle lightning.
Live weather radar around John Murtha Johnstown Cambria County Airport in Johnstown, PA: the NOAA/NWS NEXRAD composite updates about every five minutes, with NOAA lightning strike density overlaid. The loop plays the past 50 minutes, then continues into a future-radar forecast (+1 to +4 hours, NOAA HRRR model) so you can see where precipitation around KJST is headed.
Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © Stadia Maps © OpenMapTiles © OpenStreetMap
Forecast frames (amber label) are HRRR model guidance, not observed radar. Lightning strike density appears as a blue-white glow when strikes are detected in view. Radar and lightning coverage are limited in parts of Alaska, Hawaii, and offshore areas. Not for navigation.
Pilot reports (PIREPs) within 100 NM of KJST
Reported by pilots in flight over the past 6 hours, via aviationweather.gov.
Show raw report
OYM UA /OV SLT/TM 0359/FL330/TP A21N/TB OCNL MOD/RM ZOB
OYM UAHeader: reporting station and UA: a routine pilot report.OV SLTLocation: fix or navaid, optionally with a radial and distance in NM.TM 0359Reported at 03:59 UTC.FL330Altitude: 33,000 ft MSL.TP A21NAircraft type reporting.TB OCNL MODTurbulence: occasional moderate.RM ZOBRemarks.Show raw report
MDT UA /OV THV/TM 0306/FL025/TP C340/SK BKN025
MDT UAHeader: reporting station and UA: a routine pilot report.OV THVLocation: fix or navaid, optionally with a radial and distance in NM.TM 0306Reported at 03:06 UTC.FL025Altitude: 2,500 ft MSL.TP C340Aircraft type reporting.SK BKN025Sky condition: cloud bases and tops in hundreds of feet MSL.Show raw report
MDT UA /OV CXY/TM 0255/FL026/TP HELO/SK BKN026
MDT UAHeader: reporting station and UA: a routine pilot report.OV CXYLocation: fix or navaid, optionally with a radial and distance in NM.TM 0255Reported at 02:55 UTC.FL026Altitude: 2,600 ft MSL.TP HELOAircraft type reporting.SK BKN026Sky condition: cloud bases and tops in hundreds of feet MSL.Show raw report
BFD UA /OV BFD/TM 0232/FL310/TP B752/TB OCNL MOD/RM ZOB
BFD UAHeader: reporting station and UA: a routine pilot report.OV BFDLocation: fix or navaid, optionally with a radial and distance in NM.TM 0232Reported at 02:32 UTC.FL310Altitude: 31,000 ft MSL.TP B752Aircraft type reporting.TB OCNL MODTurbulence: occasional moderate.RM ZOBRemarks.⚠️ PIREPs are unverified pilot reports. Not for operational use: conditions change between reports.
Recent aviation weather trends at KJST
From ATIS Alerts' hourly weather history.
Over the past 24 hours, KJST reported a mix of conditions, most often IFR across 50 observations, with 18 flight-category changes. The strongest gust reached 18 kt, the lowest ceiling was 200 ft. Wind most often came from the SE.
Most recent change: VFR → MVFR
Most recent change: LIFR → MVFR
- 23
- 57%
- 33
- 18%
- 15
- 17%
- 05
- 8%
TAF | Terminal Aerodrome Forecast
Issued 0608Z (2:08 AM EDT)
TAF KJST 130608Z 1306/1406 18005KT 2SM -SHRA BR VCFG OVC003 FM131400 28007KT P6SM OVC007 FM131600 28008KT P6SM BKN015 FM131900 26008KT P6SM SCT015 PROB30 1401/1403 33010G15KT 4SM SHRA OVC015 FM140300 30007KT P6SM SCT012 BKN250
New to TAFs? How to read one →
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Airport facts
Reference data from the OurAirports dataset.
- Type
- Regional airport
- ICAO
- KJST
- IATA
- JST
- FAA LID
- JST
- City
- Johnstown
- State
- Pennsylvania
- Country
- United States
- Elevation
- 2,284 ft
- Coordinates
- 40.3161, -78.8339
- Runways
- 6
- Longest runway
- 7,004 ft
- Weather reporting
- Reports METAR
- TAF
- Published
- ATIS
- 118.325 MHz
- CTAF
- 125.75 MHz
- Time zone
- America/New_York
- Next sunset
- 15h 16m
Run a flight school, FBO, or club here? Embed KJST's live status on your website, free →
Nearby airports
Compare nearby METAR/TAF stations within 25, 50 and 100 NM before departure or arrival.
Within 25 NM
9 airports+3 more within 25 NM
25–50 NM
8 airports+2 more within 50 NM
50–100 NM
7 airports+1 more within 100 NM
RC flying fields nearby
AMA model-aircraft club fields around this airport: live wind, crosswind & flyability on each page.
- Johnstown RC Club 1 , Windber, PA · 4 mi
- Indiana Flyers Club - Snyder Rd , Homer City, PA · 22 mi
- Aerosport Modelers - Matson Rd , Ligonier, PA · 23 mi
Historical Flying Weather at KJST
2006–2025 · ATIS Alerts Flying Weather Index
Based on historical observations from 2006–2025, KJST reported VFR conditions during about 65.8% of valid daylight observations, with an estimated 197 VFR flying days a year. July had the most VFR weather; January had the most instrument conditions. Surface winds averaged 7.9 kt, calm 6.0% of the time.
Full historical breakdown
Flight category by month
| Month | VFR % | MVFR % | IFR % | LIFR % |
|---|---|---|---|---|
| Jan | 42.4 | 26.0 | 19.8 | 11.8 |
| Feb | 50.7 | 21.7 | 16.0 | 11.7 |
| Mar | 64.6 | 17.8 | 9.3 | 8.3 |
| Apr | 70.7 | 15.1 | 8.1 | 6.1 |
| May | 72.2 | 13.6 | 8.1 | 6.1 |
| Jun | 75.6 | 13.2 | 6.6 | 4.7 |
| Jul | 78.1 | 12.8 | 5.3 | 3.9 |
| Aug | 76.5 | 12.6 | 6.2 | 4.8 |
| Sep | 72.0 | 13.6 | 7.9 | 6.5 |
| Oct | 66.9 | 16.2 | 8.9 | 8.0 |
| Nov | 62.4 | 21.3 | 8.5 | 7.8 |
| Dec | 45.0 | 28.4 | 14.7 | 11.9 |
Average wind by month
| Month | Mean wind (kt) |
|---|---|
| Jan | 10.0 kt |
| Feb | 9.8 kt |
| Mar | 9.4 kt |
| Apr | 8.8 kt |
| May | 7.0 kt |
| Jun | 6.7 kt |
| Jul | 5.9 kt |
| Aug | 5.5 kt |
| Sep | 5.8 kt |
| Oct | 7.6 kt |
| Nov | 8.6 kt |
| Dec | 9.3 kt |
Historical summary of past observations: not a forecast or safety rating. Always check the current METAR, TAF, and a weather briefing before flight.
KJST airport diagram
Official FAA taxiway and runway layout. Tap to zoom.
The FAA airport diagram for John Murtha Johnstown Cambria County Airport in Johnstown, PA shows the runway and taxiway layout across 6 runways, ramp areas, and hold-short positions. Review it before taxiing at an unfamiliar field.
Official FAA airport diagram · d-TPP cycle 2610 · Not for navigation. Download the official FAA PDF ↗
KJST weather: frequently asked
What runways are available at KJST?+
KJST has 6 runways: 05, 10, 15, 23, 28, 33; the longest is 7,004 ft. This page computes the live crosswind for each runway end from the current wind.
Does KJST report its own weather?+
Yes. John Murtha Johnstown Cambria County Airport has its own weather station and publishes METAR observations, which this page decodes live.
Does KJST have a TAF?+
Yes. The TAF is shown on this page below the current conditions.
Does KJST broadcast D-ATIS?+
No. KJST does not broadcast D-ATIS. Alerts for KJST from the ATIS Alerts bot (@atisalerts_bot) are based on its METAR instead.
Where can I find the KJST airport diagram?+
The official FAA airport diagram for John Murtha Johnstown Cambria County Airport (KJST) is shown on this page. It maps the runway and taxiway layout, ramps, and hold-short lines. Tap it to zoom, or download the official FAA PDF free from the link under the diagram (updated every 28-day FAA charting cycle).
Pilot PIREPs for John Murtha Johnstown Cambria County Airport (KJST)
Community-submittedCommunity-submitted airport notes from pilots about runway conditions, wildlife, FBOs, fuel, turbulence, ramp access, and local tips.
Read recent community-submitted pilot notes for John Murtha Johnstown Cambria County Airport, including runway conditions, wildlife activity, FBO/fuel notes, turbulence, ramp access, and local airport tips.
⚠️ Pilot PIREPs on ATIS Alerts are community-submitted airport notes for situational awareness only. They are not official FAA PIREPs, NOTAMs, weather briefings, airport advisories, or flight-planning guidance. Always verify with official FAA/NWS sources, airport management, ATC, and current publications.
No Pilot PIREPs have been submitted for KJST yet. Recently flew here? Help the next pilot by leaving a quick airport note.
Pilot PIREPs are community pilot notes for situational awareness only, not official FAA PIREPs or advisories. Verify with official sources. Notes are moderated before they appear; helpful marks and reports help us keep them useful.
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⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.
No D-ATIS at this airport, showing METAR.
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