St John Airport (4MD9) Area Aviation Weather & Runway Winds
Aviation weather near St John Airport in Owings Mills, MD, decoded from the nearest reporting station (KDMW) — conditions, runway crosswinds, and free Telegram airport alerts.
St John Airport (4MD9) is a general aviation airport serving pilots in and around Owings Mills, MD at 461 ft. 4MD9 has no weather station of its own — conditions here are decoded from KDMW, about 14 nm away, the nearest reporting station, and local conditions can differ. Its 2 runways (02, 20) — longest 2,600 ft — are checked against the current wind in the crosswind table below. The nearest TAF is issued for KMTN. Track it in the ATIS Alerts Telegram bot to get alerts read from KDMW, the station this page is based on.
No weather station at this airport — showing the nearest station KDMW, 13.8 nm away.
Wind from the west-northwest (300°) at 3 kt, visibility 10+ statute miles, no cloud data, temperature 19°C (66°F), altimeter 29.63 inHg. Conditions are Visual Flight Rules (VFR).
METAR KDMW 290335Z AUTO 30003KT 10SM CLR 19/18 A2963 RMK AO2
What changed at KDMW (nearest station)?
Since the 0315Z (11:15 PM EDT) report — compared automatically against the latest METAR.
No significant changes since the 0315Z report — conditions are holding steady.
This is exactly what ATIS Alerts watches for you — get a Telegram message when 4MD9's weather changes, free →
Current pilot readout for 4MD9
Based on the nearest station (KDMW), 4MD9 is currently VFR with winds from 300° at 3 knots, visibility 10+ statute miles, and no ceiling reported. The strongest crosswind component is currently on runway 02, about 3 knots. Density altitude is approximately 1,400 ft (field elevation 461 ft). 4MD9 does not publish a TAF — the nearest TAF station is KMTN, about 19 nm away.
⚠️ 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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Track 4MD9 free on TelegramRunway 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 4MD9. This is intended as a planning aid only and should not replace official performance calculations or pilot judgment.
| Runway | Length | Surface | Head / Tail | Crosswind |
|---|---|---|---|---|
| 02FAV | 2,600 ft | TURF | 2 kt head | 3 kt left |
| 20 | 2,600 ft | TURF | 2 kt head | 3 kt left |
Open the crosswind calculator — try your own wind and runway numbers →
24-hour trend
Wind, ceiling and flight category over the last 24 hours.
Over the last 24 h: wind 4→3 kt, ceiling unlimited → unlimited.
4MD9 weather radar
Live NEXRAD + lightning, with a 4-hour future-radar forecast — drag to pan, tap ⚡ to toggle lightning.
Live weather radar around St John Airport in Owings Mills, MD: 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 4MD9 is headed.
Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © OpenStreetMap © CARTO
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 4MD9
Reported by pilots in flight over the past 6 hours — via aviationweather.gov.
Show raw report
PTW UA /OV PTW/TM 0326/FL290/TP C56X/TA M17/IC TRACE-LGT CLR
PTW UAHeader — reporting station and UA: a routine pilot report.OV PTWLocation — fix or navaid, optionally with a radial and distance in NM.TM 0326Reported at 03:26 UTC.FL290Altitude: 29,000 ft MSL.TP C56XAircraft type reporting.TA M17Outside air temperature, °C.IC TRACE-LGT CLRIcing: trace - light clear.Show raw report
PTW UA /OV MXE/TM 0200/FL120/TP B752/TB LGT-MOD CAT 070-120
PTW UAHeader — reporting station and UA: a routine pilot report.OV MXELocation — fix or navaid, optionally with a radial and distance in NM.TM 0200Reported at 02:00 UTC.FL120Altitude: 12,000 ft MSL.TP B752Aircraft type reporting.TB LGT-MOD CAT 070-120Turbulence: light to moderate clear-air turbulence 7,000–12,000 ft.Show raw report
MDT UA /OV MDT/TM 0132/FL060/TP CRJ2/WX FV99SM/RM VFR
MDT UAHeader — reporting station and UA: a routine pilot report.OV MDTLocation — fix or navaid, optionally with a radial and distance in NM.TM 0132Reported at 01:32 UTC.FL060Altitude: 6,000 ft MSL.TP CRJ2Aircraft type reporting.WX FV99SMWeather and flight visibility observed.RM VFRRemarks.Show raw report
JST UA /OV JST180025/TM 0117/FL280/TP C56/TB OCNL MOD CHOP
JST UAHeader — reporting station and UA: a routine pilot report.OV JST180025Location — fix or navaid, optionally with a radial and distance in NM.TM 0117Reported at 01:17 UTC.FL280Altitude: 28,000 ft MSL.TP C56Aircraft type reporting.TB OCNL MOD CHOPTurbulence: occasional moderate chop.Show raw report
PTW UA /OV MXE/TM 0106/FL150/TP B737/TB CONS MOD/RM 070-160
PTW UAHeader — reporting station and UA: a routine pilot report.OV MXELocation — fix or navaid, optionally with a radial and distance in NM.TM 0106Reported at 01:06 UTC.FL150Altitude: 15,000 ft MSL.TP B737Aircraft type reporting.TB CONS MODTurbulence: continuous moderate.RM 070-160Remarks.Show raw report
PTW UA /OV MXE/TM 0059/FL090/TP B737/TB CONS MOD CHOP
PTW UAHeader — reporting station and UA: a routine pilot report.OV MXELocation — fix or navaid, optionally with a radial and distance in NM.TM 0059Reported at 00:59 UTC.FL090Altitude: 9,000 ft MSL.TP B737Aircraft type reporting.TB CONS MOD CHOPTurbulence: continuous moderate chop.Show raw report
MDT UA /OV SCAPE045005/TM 0015/FL130/TP C550/TB MOD
MDT UAHeader — reporting station and UA: a routine pilot report.OV SCAPE045005Location — fix or navaid, optionally with a radial and distance in NM.TM 0015Reported at 00:15 UTC.FL130Altitude: 13,000 ft MSL.TP C550Aircraft type reporting.TB MODTurbulence: moderate.Show raw report
DCA UA /OV BRV120015/TM 0008/FL090/TP BCS1/TB MOD/RM +- 15 KTS +- 100 FT
DCA UAHeader — reporting station and UA: a routine pilot report.OV BRV120015Location — fix or navaid, optionally with a radial and distance in NM.TM 0008Reported at 00:08 UTC.FL090Altitude: 9,000 ft MSL.TP BCS1Aircraft type reporting.TB MODTurbulence: moderate.RM +- 15 KTS +- 100 FTRemarks.⚠️ PIREPs are unverified pilot reports. Not for operational use — conditions change between reports.
Recent aviation weather trends at 4MD9
From ATIS Alerts' hourly weather history.
Over the past 24 hours, the nearest station KDMW reported mostly VFR across 71 observations, with 16 flight-category changes. The strongest gust reached 30 kt, the lowest ceiling was 500 ft. Wind most often came from the S.
Most recent change: MVFR → VFR
Most recent change: MVFR → VFR
- 02/20
- 100%
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Nearby TFRs
Active FAA TFRs near 4MD9
FAA TFR data shows an active temporary flight restriction near 4MD9.
View all active US TFRs → · Official FAA TFR ↗
Verify with official FAA TFR sources before flight.
Airport facts
Reference data from the OurAirports dataset.
- Type
- General aviation airport
- FAA LID
- 4MD9
- City
- Owings Mills
- State
- Maryland
- Country
- United States
- Elevation
- 461 ft
- Coordinates
- 39.4806, -76.7606
- Runways
- 2
- Longest runway
- 2,600 ft
- Weather reporting
- Nearest station KDMW
- TAF
- Nearest KMTN
- Time zone
- America/New_York
- Next sunset
- 20h 30m
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Nearby airports
Compare nearby METAR/TAF stations within 25, 50 and 100 NM before departure or arrival.
Within 25 NM
8 airports+2 more within 25 NM
25–50 NM
8 airports+2 more within 50 NM
50–100 NM
8 airports+2 more within 100 NM
RC flying fields nearby
AMA model-aircraft club fields around this airport — live wind, crosswind & flyability on each page.
- Baltimore Area Soaring Society - Villa Maria Field — Timonium, MD · 9 mi
- Wright Flyers - Hernwood Landfill — Woodstock, MD · 10 mi
- Baltimore Area Soaring Society - Dulaney Valley Rd — Phoenix, MD · 11 mi
4MD9 weather — frequently asked
What runways are available at 4MD9?+
4MD9 has 2 runways — 02, 20; the longest is 2,600 ft. This page computes the live crosswind for each runway end from the current wind.
Where does the weather shown for 4MD9 come from?+
St John Airport does not have its own weather station. Conditions shown here come from the nearest reporting station, KDMW, about 14 nm away — close enough for situational awareness, but local conditions at 4MD9 can differ.
Does 4MD9 have a TAF?+
No — 4MD9 does not publish its own TAF. The nearest TAF station is KMTN, about 19 nm away.
Does 4MD9 broadcast D-ATIS?+
No — 4MD9 does not broadcast D-ATIS. Alerts for 4MD9 from the ATIS Alerts bot (@atisalerts_bot) are based on its METAR (via the nearest reporting station) instead.
Pilot PIREPs for St John Airport (4MD9)
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 St John 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 4MD9 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.
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