Los Angeles Pier 400
Live NOAA readings, 9410666 - Los Angeles Pier 400, CA, station PFDC1
Los Angeles Pier 400 is reading 10 kt from the SW, gusting 13, measured 50 minutes ago.
Over the last 12 hours it has run 1–12 kt on the hour, and its strongest single reading was 13 kt 2 hours ago.
All readings
Knots, newest on the right, never interpolated — a gap is a gap in the record.
PFDC1, the morning after, Wed 11 Nov
What last night's forecast was worth
Yesterday the Los Angeles Pier 400 meter topped out at 8.9 kt at 3 pm. The night before, NWS said 8 kt, Forecast Lab — what Premium is served — 6, the other 4 models 7.1–10.7 kt. That morning’s lake-breeze watch expected a lake breeze, and none came.
How this was measured
One day is an illustration, not a record — a model that reads low every day will still land one. The number that means anything is the scored one over 90 days, in how our calls are graded.
Each model row is the highest wind it forecast for the 6am–6pm window at this meter, taken from the freshest run that existed before midnight the night before — between 6 and 23 hours ahead, depending on the hour. A model with no run in that window shows no call; it is never filled in from a closer-range forecast. Raw rows are the provider's own numbers; NWS + this meter's bias is that forecast shaded by this station's own measured error. That correction is Premium: a Premium rider is served the corrected row, and a free or signed-out rider is served the raw NWS row above it. The meter's figure is the strongest reading of each hour from this station's stored observations. Hours over your floor are counted from those readings alone; rideable is the nightly scorer's verdict and also weighs gust, direction and waves, so the two numbers are not the same measurement and are never added. Knots throughout.
PFDC1, where the wind comes from, 41 days
Which way the working wind blows here
61% of the hours over 12 kt came from S–SW in the last 41 days, the same quarter the wind most often sits in.
How this was measured
Floor is the 12 kt default; set a wind floor on an alert here and the rose is cut at yours. Hours the meter read at or over the floor: 69 of 823 (8%). Over the floor at the meter is not a rideable hour: gust, your direction window and the meter's own siting are not in it.
One reading per hour, the hour's strongest sample, from this meter's own readings over the last 41 days. Sixteen sectors. The two roses are each drawn to their own total: a light wedge is that sector's share of ALL hours, a dark wedge its share of the hours at or over the floor, and the rings are marked in the dark set's percentages. They are two distributions, not one inside the other. Direction is where the wind blows FROM.