North Atlantic⇩     Europe⇩     USA/Can. East⇩     USA/Can. West⇩

This website is the first one to map live data from more than 100 sensors at sea (North Atlantic).

Easy display for mobile phones: light homepage, compressed images, mobile-friendly LOOP function: move the map to your region and just click to loop over time on the same region!


07/11/2019   NEW! Terms of use were updated. See the legal notice.
19/08/2019   NEW! 24-hr pressure change for the Eastern US. Go!
15/07/2019   NEW! Wind speed charts available for the land!
22/06/2019   More from our tweets: Full-size animation of the North Atlantic dewpoint from 19 Jun to 22 Jun, hourly step (GIF, 73M)

North Atlantic⇩     Europe⇩     USA/Can. East⇩     USA/Can. West⇩

Added value of the MeteoceanOnline sea-level pressure reconstruction (near real time, labels H+0...H-2 on the website) over GFS real-time solutions (short-term forecasts), computed as the innovation towards observations. The control solution (black) is a 4DVAR analysis (ARPEGE, delayed availability). Innovation is a skill score normalized by the signal amplitude in order to quantify a graphical skill (and not energy). This test is based on stations of the North Atlantic ocean away from the Greenland and Newfoundland neighborhoods. Quality of the MOO reconstruction depends on a total number of sensors at sea large enough. Missing real-time reconstructions were compensated on this graph by simulating offline the "real-time mode". Reconstructions on the website with labels H-3...H-9 are usually an improved reconstruction but farther from the real-time mode and not included in this graph.

North Atlantic

SST  Daily signal  D-1 D-2  Seasonal signal D-1 D-2

SST tendency    Daily signal D-1 D-2  Seasonal signal D-1 D-2

Europe 1

USA/Canada East

USA/Canada West (experimental)

Diagnostics are value-added products mainly based on the real-time observation data.
Data is high quality from the real-time global observation network where most of the spurious records have been filtered out.
Data density and diagnosis quality of each date increase with time due to regular updates.

(2018-2019)  About MeteoceanOnline  Legal notice  Contact