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GW4240 weather wind

GW4240 weather is a community weather station near Birch Bay in the San Juan Islands sailing area. The readings come from APRS / CWOP, and Telltale keeps every one of them so the history on this page is the station's own record.

Latest observation

The latest reading at GW4240 weather is a wind of 2 kn from the NW (313°), gusting 3 kn, observed at 2026-11-03 23:55 UTC (Tuesday 3 Nov 15:55 local time, America/Los_Angeles). The air temperature was 11°C. Sea-level pressure was 1019 hPa.

The last 24 hours

Over the 24 hours to that reading, GW4240 weather averaged 0 kn across 281 observations, with a strongest gust of 4 kn and a strongest mean wind of 3 kn. The prevailing direction, weighted by wind speed, was N (1°).

About this station

Type
community weather station
Source
APRS / CWOP
Area
San Juan Islands
Position
48.940, -122.786
Exposure
unknown

Telltale has not classified how exposed GW4240 weather is, so compare it with nearby stations before relying on its absolute numbers.

Reading these numbers

The mean wind is averaged over the station's reporting period, and a gust is the strongest short burst inside it, so a gust is always at least the mean. Speeds are in knots, directions are where the wind blows from, and times are given in UTC with the station's local time beside them. A station measures its own spot; a forecast model describes a grid cell, so the two can differ by a few knots even when the forecast is good. GW4240 weather is one of the stations Telltale compares with the forecast models before it shapes the live wind map; understand the weather models or how coastal wind behaves.

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Stations near GW4240 weather