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St John Airport (4MD9) Area Aviation Weather & Runway Winds

As of 3:15 PM ET, Oct 28, based on the nearest station (KDMW), 4MD9 is currently VFR with winds from 170° at 8 knots, visibility 10+ statute miles, and no ceiling reported.

Aviation weather near St John Airport in Owings Mills, MD, decoded from the nearest reporting station (KDMW): conditions and runway crosswinds.

St John Airport (4MD9) is a general aviation airport serving pilots in and around Owings Mills, MD at a field elevation of 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. It has one runway (02/20), the longest 2,600 ft. The nearest TAF is issued for KMTN.

Ask ATIS AIAsk anything about 4MD9's weather, runways or delays, or search another airport.
VFR
Observed 1915Z (3:15 PM EDT)live · refreshes every 60s

No weather station at this airport: showing the nearest station KDMW, 13.8 nm away.

Wind
170° 8 kt
Visibility
10+ sm
Ceiling
Unlimited
Altimeter
30.37"
Temp / Dew
63°F / 17°C
dew 46°F / 8°C

Wind from the south (170°) at 8 kt, visibility 10+ statute miles, no cloud data, temperature 17°C (63°F), altimeter 30.37 inHg. Conditions are Visual Flight Rules (VFR).

Raw METAR
METAR KDMW 281915Z AUTO 17008KT 10SM CLR 17/08 A3037 RMK AO2

What changed at KDMW (nearest station)?

Since the 1855Z (2:55 PM EDT) report, compared automatically against the latest METAR.

  • Visibility moved from 7 SM to 10 SM.
  • Haze ended (HZ).

Current pilot readout for 4MD9

Based on the nearest station (KDMW), 4MD9 is currently VFR with winds from 170° at 8 knots, visibility 10+ statute miles, and no ceiling reported. the wind favors south-facing runway ends (20). Density altitude is approximately 250 ft (field elevation 461 ft). 4MD9 does not publish a TAF. The nearest TAF station is KMTN, about 19 nm away.

New to aviation weather? How to read a METAR → · What VFR/MVFR/IFR mean → · Decode any METAR/TAF → · Density altitude calculator →

Runway wind check

Estimated head/tailwind and crosswind for each runway end from the current reported wind.

RunwayHead / TailCrosswind
20FAV8 kt head3 kt left
028 kt tail1 kt right

Open the crosswind calculator to try your own wind and runway numbers →

4MD9 runways

1 physical runway · 2 runway ends. Each card opens the runway's intelligence page: equipment and lighting, LAHSO, frequencies, today's configuration, predicted use, history and approaches.

  • Runway 02/20
    2,600 × 120 ft · TURF
    Status not monitored
    Current use
    no stated-runway source at 4MD9
    Wind
    02
    8 kt tailwind · 1 kt crosswind from right
    20
    8 kt headwind · 3 kt crosswind from left
    no active equipment NOTAM receivedView Runway Intelligence →

“Current use” is what the facilitystates; wind components are arithmetic on the current METAR against TRUE headings; status reflects NOTAMs received through SWIM, the tower's TFDM record and the D-ATIS — a runway reads “Open” only with a complete NOTAM picture.

24-hour trend

Wind, ceiling and flight category over the last 24 hours.

Wind (kt)Gusts (kt)Bottom strip, flight category:VFRMVFRIFRLIFRNo report
071419Z07Z19Z

Over the last 24 h: wind 5→8 kt, ceiling unlimited → unlimited.

4MD9 weather radar

Live NEXRAD + lightning, with a 4-hour future-radar forecast. Drag to pan, tap ⚡ to toggle lightning.

Loading…
Loading radar…

Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © Stadia Maps © OpenMapTiles © OpenStreetMap

NOAA NEXRAD composite and lightning, updated about every five minutes; amber frames are HRRR model guidance, not observed radar. Not for navigation.

Pilot reports (PIREPs) within 100 NM of 4MD9

Reported by pilots in flight over the past 6 hours, via aviationweather.gov.

PIREP1823Z (2:23 PM EDT) · 41 NM NE of 4MD9 · 32,000 ft MSL · B763
continuous light turbulence
Show raw report
PTW UA /OV PTW246030/TM 1823/FL320/TP B763/TB CONS LGT
PTW UAHeader: reporting station and UA: a routine pilot report.
OV PTW246030Location: fix or navaid, optionally with a radial and distance in NM.
TM 1823Reported at 18:23 UTC.
FL320Altitude: 32,000 ft MSL.
TP B763Aircraft type reporting.
TB CONS LGTTurbulence: continuous light.
PIREP1645Z (12:45 PM EDT) · 17 NM E of 4MD9 · 34,000 ft MSL · A319
continuous light 340 turbulence
Show raw report
WRI UA /OV MURPH/TM 1645/FL340/TP A319/TB CONS LGT 340
WRI UAHeader: reporting station and UA: a routine pilot report.
OV MURPHLocation: fix or navaid, optionally with a radial and distance in NM.
TM 1645Reported at 16:45 UTC.
FL340Altitude: 34,000 ft MSL.
TP A319Aircraft type reporting.
TB CONS LGT 340Turbulence: continuous light 340.
PIREP1636Z (12:36 PM EDT) · 95 NM NW of 4MD9 · 36,000 ft MSL · B752
int light chop turbulence
Show raw report
JST UA /OV JST150015/TM 1636/FL360/TP B752/TB INT LGT CHOP/RM ZOB
JST UAHeader: reporting station and UA: a routine pilot report.
OV JST150015Location: fix or navaid, optionally with a radial and distance in NM.
TM 1636Reported at 16:36 UTC.
FL360Altitude: 36,000 ft MSL.
TP B752Aircraft type reporting.
TB INT LGT CHOPTurbulence: int light chop.
RM ZOBRemarks.
PIREP1431Z (10:31 AM EDT) · 79 NM N of 4MD9 · 3,200 ft MSL · C56X
Show raw report
MDT UA /OV SEG/TM 1431/FL032/TP C56X/SK BASES017 TOPS023/TA TA 16
MDT UAHeader: reporting station and UA: a routine pilot report.
OV SEGLocation: fix or navaid, optionally with a radial and distance in NM.
TM 1431Reported at 14:31 UTC.
FL032Altitude: 3,200 ft MSL.
TP C56XAircraft type reporting.
SK BASES017 TOPS023Sky condition: cloud bases and tops in hundreds of feet MSL.
TA TA 16Outside air temperature, °C.
PIREP1340Z (9:40 AM EDT) · 47 NM NW of 4MD9 · 1,000 ft MSL · P28A
Show raw report
CXY UA /OV N94 /TM 1340 /FL010 /TP P28A /SK OVC010 /RM FV 02-03SM PATCHY BR
CXY UAHeader: reporting station and UA: a routine pilot report.
OV N94Location: fix or navaid, optionally with a radial and distance in NM.
TM 1340Reported at 13:40 UTC.
FL010Altitude: 1,000 ft MSL.
TP P28AAircraft type reporting.
SK OVC010Sky condition: cloud bases and tops in hundreds of feet MSL.
RM FV 02-03SM PATCHY BRRemarks.

⚠️ 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 18 flight-category changes. The lowest ceiling was 0 ft. Wind most often came from the SE.

Last 24 hours
VFR 72%MVFR 7%IFR 8%LIFR 13%
Wind avg/max: 4/12 kt
Max gust: -
Lowest ceiling: 0 ft
Lowest vis: -
Prevailing wind: SE
Category changes: 18

Most recent change: IFR → VFR

Last 7 days
VFR 88%MVFR 3%IFR 5%LIFR 4%
Wind avg/max: 4/12 kt
Max gust: 17 kt
Lowest ceiling: 0 ft
Lowest vis: 0.25 sm
Prevailing wind: N
Category changes: 24

Most recent change: LIFR → VFR

Wind-favored runway - past 30 days

Share of hours each runway had the most headwind. From wind reports, not ATC assignments.

02
62%
20
38%

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No live weather from 4MD9

Live crosswind meter

4MD9 has no weather feed online, so the wind comes from KDMW, 14 nm away.

N20028 kt
Headwind
8 kt
Crosswind (from the left)
3 kt

Wind is 20° off runway 20, the end with the most headwind right now.

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Turf · 2,600 ft. Headings from FAA runway data. Not for navigation.

Field aerial

North up

Aerial photo of St John Airport (4MD9)
N ↑

Imagery: USGS The National Map (public domain). Something off? ✏️ Suggest an edit

Nearby TFRs

Active FAA TFRs near 4MD9

FAA TFR data shows an active temporary flight restriction near 4MD9.

Security TFR
WASHINGTON, DC., USA
Active 9.4 NM from 4MD9
NOTAM: 4/9383

View all active US TFRs → · Official FAA TFR ↗

Verify with official FAA TFR sources before flight.

Airport info

From the FAA airport record (cycle 2026-10-01) and OurAirports.

Services

Attended
Unattended
Control tower
None

Airport

Type
General aviation airport
FAA LID
4MD9
City
Owings Mills
State
Maryland
Country
United States
Elevation
461 ft
Coordinates
39.4806, -76.7606
Runways
1 physical runway · 2 runway ends
Longest runway
2,600 ft
Weather reporting
Nearest station KDMW
TAF
Nearest KMTN
Time zone
America/New_York
Sunset in
2h 46m

Run a flight school, FBO, or club here? Embed 4MD9's live status on your website, free →

Nearby airports

Compare nearby METAR/TAF stations within 25, 50 and 100 NM before departure or arrival.

VFRMVFRIFRLIFRNo report

RC flying fields nearby

AMA model-aircraft club fields around this airport: live wind, crosswind & flyability on each page.

All RC flying fields →

See all Maryland airports →

Pilot PIREPs for St John Airport (4MD9)

Community-submitted

Community-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.

⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.

Spotted incorrect airport info? ✏️ Suggest an edit

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