WxDecoder

WV40 Weather St Mary's Seaplane Base

St Mary's, West VirginiaElevation 587 ftSeaplane base
OFF-FIELD REFERENCE
Nearest report: KPKB · 12 NM W · 49 min old
No ceiling, visibility 10 SM.
No on-field report, so no field flight category. Conditions at the field may differ.
OFF-FIELD REFERENCE · KPKB
WIND
Calm
no steady wind
VISIBILITY
10 SM
16.1 km
CEILING
None
no BKN/OVC layer
FORECAST & PILOT NOTES · SUPPLEMENTAL

Extended forecast and pilot notes

No aviation METAR is published for this airport. The nearest National Weather Service station reports wind calm, visibility 10 SM, temperature 14C. Treat this as supplemental, not an aviation observation. Forecast suggests tonight mostly clear then areas of fog, low near 39F, 0% chance of precipitation. Key risks: no significant hazards are highlighted right now, but always confirm against an official briefing.

DayConditionsTemp FWindGustsPrecipPilot note
Tonight Mostly Clear then Areas Of Fog 39 0 kt – 0%
Monday Patchy Fog then Sunny 74/44 SW 2 kt – 0%
Tuesday Areas Of Fog then Mostly Sunny 73/47 NE 1 kt – 0%
Wednesday Partly Sunny 73/47 S 4 kt – 0%
Thursday Sunny 75/47 S 4 kt – 1%
Friday Mostly Sunny 76/50 SW 2 kt – 1%
Saturday Partly Sunny 74/56 SE 2 kt – 19%
Sunday Chance Rain Showers 72 S 5 kt – 48%

Source: National Weather Service (office RLX). Forecast issued 2341Z.

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
Crosswind calculator
No runway layout is available for WV40. Enter a runway number or heading to estimate wind components.
RUNWAYS

Runway detail & declared distances

1 runway · longest 5,000 ft

04W/22W
Dimensions
5,000 x 500 ft
Surface
Water
RWY 04W
RWY 22W

Runway data from the FAA NASR dataset (effective 2026-06-11). Verify with the current Chart Supplement and NOTAMs.

FIELD CONDITIONS

Field elevation

Field elevation
587 ft MSL

Density and pressure altitude need a current temperature and altimeter from the METAR.

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
2232Z 6:32 PM
Sunrise
1146Z 7:46 AM
Loggable night
2259Z (6:59 PM local) → 1118Z (7:18 AM local)
end of evening to start of morning civil twilight
Position lights required
2232Z (6:32 PM local) → 1146Z (7:46 AM local)
sunset to sunrise (91.209)
Night passenger currency
2332Z (7:32 PM local) → 1046Z (6:46 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

St Mary's Seaplane Base is in St Mary's, West Virginia. Field elevation 587 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPrivately owned
UsePrivate use
TypeSeaplane base
ManagerDAVID E. JONES
Manager phone704-985-4714
AttendedIREG
CHARTS & AIRSPACE
ICAO / IATAWV40
SectionalCINCINNATI
Center (ARTCC)INDIANAPOLIS
Flight service (AFSS)ELKINS
RegionWest Virginia
CountryUnited States
Coordinates39.4137, -81.1998
Distance from city1 NM S
SERVICES & LIGHTING
Control towerNon-towered
AIRCRAFT ACTIVITY

Traffic patterns

Aircraft activity data is not available for this airport yet.

NEARBY AIRPORTS

Weather reference stations

WV40 has no on-field report. Nearest reporting station: KPKB (12 NM W, VFR).

KPKB Mid Ohio Valley Regional Airport
12 NM W
VFR
KZZV Zanesville Municipal Airport
45 NM NW
VFR
KCKB North Central West Virginia Airport
46 NM E
VFR
KUNI Ohio University Airport
49 NM W
VFR
KHLG Wheeling Ohio County Airport
52 NM NE
VFR
KAFJ Washington County Airport
60 NM NE
VFR
AIRPORT REMARKS

Operational remarks

›USE AT OWN RISK.
›FOR CD CTC INDIANAPOLIS ARTCC AT 317-247-2411.
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗WV40 on OurAirports
FREQUENTLY ASKED
Does WV40 have a METAR?
No on-field METAR is issued for WV40. This page uses the nearest reporting station as a reference.
Does WV40 have a TAF?
No TAF is issued directly for WV40. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at WV40?
WV40 sits at 587 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for WV40?
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.