SST (ACSPO) Fronts
Where NOAA's detector found a temperature break in yesterday's daily satellite picture. A yes-or-no mask, so most of the map is empty on purpose and blank means no satellite could see that water.
Updates daily
More detail
The picture behind the lines is the same one SST (ACSPO 2km) shows, and it is about a day and a half old.
The layer cannot say how sharp a break is. For the temperatures on each side of a line, switch to SST (ACSPO 2km). The layer covers the Gulf of America, the East Coast and Baja.
These are nighttime breaks, so a line here does not show where the break is this afternoon.
Watch for cloud edges: the edge of a cloud deck can look like a temperature break to the detector. A real break holds its place for days, and a cloud edge moves with the weather. Check the days before, or the same spot on SST (GOES-19) Fronts.
How it relates to the other break layer. SST (GOES-19) Fronts is the hourly one, about two hours old, with more cloud gaps in any one hour. Use this layer for the steadier daily picture and SST (GOES-19) Fronts for today's break.
Only one data layer draws at a time, so turning this on turns the temperature layer off. Lower the Opacity in Layer Settings to let the chart show through the lines.
The numbers
| How often it updates | Once a day, one frame per day |
| How fresh it usually is | About a day and a half old |
| How detailed it is | About 1 nautical mile (2 km) |
| Where it covers | Gulf of America, East Coast and Baja |
| How far back you can look | 8 days back |
| Goes blank under cloud? | Yes, on purpose |
| Observed or modeled | Observed. Nothing is filled in |
| What you see on screen | Lines only, with no strength value. A nighttime picture |
Source: a satellite picture from ACSPO (NOAA front detector), four polar-orbiting satellites.