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Catoctin Crosswind Airport (4MD7) Area Aviation Weather & Runway Winds

A current METAR is not available for 4MD7 right now.

Aviation weather near Catoctin Crosswind Airport in Thurmont, MD, decoded from the nearest reporting station (KFDK): conditions and runway crosswinds.

Catoctin Crosswind Airport (4MD7) is a general aviation airport serving pilots in and around Thurmont, MD at a field elevation of 451 ft. 4MD7 has no weather station of its own. Conditions here are decoded from KFDK, about 14 nm away, the nearest reporting station, and local conditions can differ. It has one runway (05/23), the longest 1,600 ft. The nearest TAF is issued for KMRB.

Ask ATIS AIAsk anything about 4MD7's weather, runways or delays, or search another airport.
No data
Awaiting observationlive · refreshes every 60s

No weather station at this airport: showing the nearest station KFDK, 13.7 nm away.

Wind
-
Visibility
-
Ceiling
Unlimited
Altimeter
-
Temp / Dew
-

What changed at KFDK (nearest station)?

Since the 1645Z (12:45 PM EDT) report, compared automatically against the latest METAR.

  • Pressure falling: altimeter 30.42 → 30.40 inHg.

Current pilot readout for 4MD7

A current METAR is not available for 4MD7 right now. The nearest reporting station is KFDK. Check back shortly, review a nearby reporting station, and always confirm with an official briefing before flight.

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.

Current wind is calm: calm wind is not a factor for runway selection, and with no wind there is no head/tail or crosswind component to compute. Live numbers return automatically once a report includes a wind direction.

RunwayHead / TailCrosswind
05--
23--

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

4MD7 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 05/23
    1,600 × 100 ft · TURF
    Status not monitored
    Current use
    no stated-runway source at 4MD7
    Wind
    05
    no steady wind
    23
    no steady wind
    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
061218Z05Z17Z

Over the last 23 h: wind 0→5 kt, ceiling unlimited → unlimited.

4MD7 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 4MD7

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

PIREP1738Z (1:38 PM EDT) · 79 NM NW of 4MD7 · 45,000 ft MSL · C550
Show raw report
AOO UA /OV JST045025 /TM 1738 /FL450 /TP C550 /TA M42 /WV 26564KT /TB NEG
AOO UAHeader: reporting station and UA: a routine pilot report.
OV JST045025Location: fix or navaid, optionally with a radial and distance in NM.
TM 1738Reported at 17:38 UTC.
FL450Altitude: 45,000 ft MSL.
TP C550Aircraft type reporting.
TA M42Outside air temperature, °C.
WV 26564KTWind (direction/speed) or wind-shear remarks.
TB NEGTurbulence: none reported.
PIREP1636Z (12:36 PM EDT) · 65 NM NW of 4MD7 · 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.
PIREP1538Z (11:38 AM EDT) · 98 NM N of 4MD7 · 1,600 ft MSL · SR22
Show raw report
IPT UA /OV 3E/TM 1538/FL016/TP SR22/RM CLOUD BASES 016 MSL
IPT UAHeader: reporting station and UA: a routine pilot report.
OV 3ELocation: fix or navaid, optionally with a radial and distance in NM.
TM 1538Reported at 15:38 UTC.
FL016Altitude: 1,600 ft MSL.
TP SR22Aircraft type reporting.
RM CLOUD BASES 016 MSLRemarks.
PIREP1431Z (10:31 AM EDT) · 72 NM N of 4MD7 · 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) · 34 NM N of 4MD7 · 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.
PIREP1316Z (9:16 AM EDT) · 55 NM S of 4MD7 · during descent · CL69
Show raw report
HEF UA /OV KHEF340001/TM 1316/FL009/TP CL69/SK OVC009/RM DURD
HEF UAHeader: reporting station and UA: a routine pilot report.
OV KHEF340001Location: fix or navaid, optionally with a radial and distance in NM.
TM 1316Reported at 13:16 UTC.
FL009Altitude: 900 ft MSL.
TP CL69Aircraft type reporting.
SK OVC009Sky condition: cloud bases and tops in hundreds of feet MSL.
RM DURDRemarks.
PIREP1304Z (9:04 AM EDT) · 42 NM N of 4MD7 · 3,000 ft MSL · B737
Show raw report
MDT UA /OV HAR/TM 1304/FL030/TP B737/SK TOPS030
MDT UAHeader: reporting station and UA: a routine pilot report.
OV HARLocation: fix or navaid, optionally with a radial and distance in NM.
TM 1304Reported at 13:04 UTC.
FL030Altitude: 3,000 ft MSL.
TP B737Aircraft type reporting.
SK TOPS030Sky condition: cloud bases and tops in hundreds of feet MSL.
PIREP1210Z (8:10 AM EDT) · 56 NM S of 4MD7 · 500 ft MSL · C25A
Show raw report
HEF UA /OV KHEF/TM 1210/FL005/TP C25A/SK OVC005-TOPS009/RM DRUD
HEF UAHeader: reporting station and UA: a routine pilot report.
OV KHEFLocation: fix or navaid, optionally with a radial and distance in NM.
TM 1210Reported at 12:10 UTC.
FL005Altitude: 500 ft MSL.
TP C25AAircraft type reporting.
SK OVC005-TOPS009Sky condition: cloud bases and tops in hundreds of feet MSL.
RM DRUDRemarks.

⚠️ PIREPs are unverified pilot reports. Not for operational use: conditions change between reports.

Recent aviation weather trends at 4MD7

From ATIS Alerts' hourly weather history.

Over the past 24 hours, the nearest station KFDK reported a mix of conditions, most often VFR across 42 observations, with 16 flight-category changes. The lowest ceiling was 200 ft. Wind most often came from the S.

Last 24 hours
VFR 45%MVFR 7%IFR 29%LIFR 19%
Wind avg/max: 0/6 kt
Max gust: -
Lowest ceiling: 200 ft
Lowest vis: -
Prevailing wind: S
Category changes: 16

Most recent change: MVFR → VFR

Last 7 days
VFR 79%MVFR 6%IFR 9%LIFR 6%
Wind avg/max: 1/11 kt
Max gust: 15 kt
Lowest ceiling: 200 ft
Lowest vis: 0.25 sm
Prevailing wind: N
Category changes: 35

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.

05
54%
23
46%

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Field aerial

North up

Aerial photo of Catoctin Crosswind Airport (4MD7)
N ↑

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

Nearby TFRs

Active FAA TFRs near 4MD7

FAA TFR data shows an active temporary flight restriction near 4MD7.

Security TFR
WASHINGTON, DC., USA
Active 19.6 NM from 4MD7
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
Wind indicator
Unlighted

Airport

Type
General aviation airport
FAA LID
4MD7
City
Thurmont
State
Maryland
Country
United States
Elevation
451 ft
Coordinates
39.6453, -77.3678
Runways
1 physical runway · 2 runway ends
Longest runway
1,600 ft
Weather reporting
Nearest station KFDK
TAF
Nearest KMRB
Time zone
America/New_York
Sunset in
4h 17m

Run a flight school, FBO, or club here? Embed 4MD7'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 Catoctin Crosswind Airport (4MD7)

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 Catoctin Crosswind 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 4MD7 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.

METAR source temporarily unavailable.

Spotted incorrect airport info? ✏️ Suggest an edit

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