GOES-16 is no longer transmitting ABI data

November 30th, 2017 |

16-panel image of all GOES-16 ABI Bands, 1332 UTC on 30 November 2017 (Click to enlarge)

In preparation for its move from 89.5º W Longitude to the operational GOES-East position at 75.2º W Longitude, GOES-16 Instruments — the ABI, the GLM, and others — have been placed in ‘safe mode.’  In that mode, the instruments do not scan or transmit data.  This occurred shortly after the 1330 UTC Full Disk image, and the 1332 CONUS Image, shown above.  GOES-16 instrumentation will start scanning and transmitting again, sometime between 14 and 20 December.  In contrast to earlier GOES Satellites, GOES-R series satellites will not transmit data when they are shifting longitude.

Other examples of the final preliminary, non-operational GOES-16 ABI images are shown below: (1) Visible (0.64 µm) imagery centered over snow-covered Mount Washington, New Hampshire, (2) Full Disk Water Vapor (6.9 µm) imagery and (3) a closer view of Water Vapor (7.3 µm, 6.9 µm and 6.2 µm) images showing mountain waves over Wyoming and Colorado.

GOES-16 Visible (0.64 µm) images, centered on Mount Washington, New Hampshire (Click to animate)

GOES-16 Visible (0.64 µm) images, centered on Mount Washington, New Hampshire [click to animate]

GOES-16 Water Vapor (6.9 µm) images (Click to animate)

GOES-16 Water Vapor (6.9 µm) images [click to animate]

GOES-16 Lower-level (7.3 µm), Mid-level (6.9 µm) and Upper-level (6.2 µm) Water Vapor images [click to play animation]

GOES-16 Lower-level (7.3 µm), Mid-level (6.9 µm) and Upper-level (6.2 µm) Water Vapor images [click to animate]

Prescribed burn in Wisconsin

November 28th, 2017 |

GOES-16 Visible (0.64 µm, left) and Shortwave Infrared (3.9 µm, right) images, with plots of hourly surface reports [click to play MP4 animation]

GOES-16 Visible (0.64 µm, left) and Shortwave Infrared (3.9 µm, right) images, with plots of hourly surface reports [click to play MP4 animation]

* GOES-16 data posted on this page are preliminary, non-operational and are undergoing testing *

GOES-16 “Red” Visible (0.64 µm) and Shortwave Infrared (3.9 µm) images (above; also available as an animated GIF) showed signatures associated with a prescribed burn in western Wisconsin on 28 November 2017. The Shortwave Infrared images revealed a warm thermal anomaly or “hot spot” (dark black to yellow to red pixels) — and on the visible images, a thin smoke plume could be seen drifting southeastward from the fire source.

Early in the animation sequence, however, a band of cirrus cloud was moving over the fire — yet a faint thermal signature (darker gray to black pixels) could occasionally be seen on the Shortwave Infrared imagery. The cirrus cloud layer was thin enough to allow some of the heat energy emitted by the fire to pass through and reach the satellite detectors. Once the cirrus moved to the south, the fire’s hot spot became much more apparent.

A toggle between Terra MODIS Shortwave Infrared (3.7µm) and Infrared Window (11.0 µm) images at 1812 UTC (below) also showed a faint warm fire signature through the cirrus clouds — the cloud-top Infrared Window brightness temperature directly over the fire in northern Monroe County was -33ºC, while the warmest Shortwave Infrared brightness temperature of the subtle fire signature was +1ºC.

Terra MODIS Shortwave Infrared (3.7 µm) and Infrared Window (11.0 µm) images [click to enlarge]

Terra MODIS Shortwave Infrared (3.7 µm) and Infrared Window (11.0 µm) images [click to enlarge]

As was seen on the GOES-16 imagery, after the band of cirrus moved south of the fire an Aqua MODIS Shortwave Infrared (3.7 µm) image at 1912 UTC (below) displayed a pronounced fire hot spot signature.

Aqua MODIS Shortwave Infrared (3.7 µm) image [click to enlarge]

Aqua MODIS Shortwave Infrared (3.7 µm) image [click to enlarge]

(Thanks to Dave Schmidt, NWS La Crosse, for bringing this case to our attention!)

Lee-side cold frontal gravity wave

November 28th, 2017 |

GOES-16 Lower-level (7.3 µm, left), Mid-level (6.9 µm, center) and Upper-level (6.2 µm, right) Water Vapor images, with hourly surface wind barbs plotted in yellow [click to play MP4 animation]

GOES-16 Lower-level (7.3 µm, left), Mid-level (6.9 µm, center) and Upper-level (6.2 µm, right) Water Vapor images, with hourly surface wind barbs plotted in yellow [click to play MP4 animation]

* GOES-16 data posted on this page are preliminary, non-operational and are undergoing testing *

As a strong cold front (surface analyses) moved southward from Colorado and Nebraska across New Mexico, Texas and Oklahoma on 28 November 2017, the subtle curved arc signature of a lee-side cold frontal gravity wave could be seen on GOES-16 Lower-level (7.3 µm), Mid-level (6.9 µm) and Upper-level (6.2 µm) Water Vapor images (above).

Closer views of imagery from each of the 3 water vapor bands are shown below.

GOES-16 Upper-level (6.2 µm) images, with hourly surface wind barbs plotted in yellow [click to play MP4 animation]

GOES-16 Upper-level (6.2 µm) images, with hourly surface wind barbs plotted in yellow [click to play MP4 animation]

GOES-16 Mid-level (6.9 µm) images, with hourly surface wind barbs plotted in yellow [click to play MP4 animation]

GOES-16 Mid-level (6.9 µm) images, with hourly surface wind barbs plotted in yellow [click to play MP4 animation]

GOES-16 Lower-level (7.3 µm) images, with hourly surface wind barbs plotted in yellow [click to play MP4 animation]

GOES-16 Lower-level (7.3 µm) images, with hourly surface wind barbs plotted in yellow [click to play MP4 animation]

Strong storm in the Bering Sea

November 26th, 2017 |

Himawari-8 Lower-level (7.3 µm, left), Mid-level (6.9 µm, center) and Upper-level (6.2 µm, right) Water Vapor images, with hourly surface wind gusts (knots) plotted in red [click to play MP4 animation]

Himawari-8 Lower-level (7.3 µm, left), Mid-level (6.9 µm, center) and Upper-level (6.2 µm, right) Water Vapor images, with hourly surface wind gusts (knots) plotted in red [click to play MP4 animation]

Himawari-8 Lower-level (7.3 µm), Mid-level (6.9 µm) and Upper-level (6.2 µm) Water Vapor images (above) showed a strong storm as it was rapidly intensifying south of the Aleutian Islands and moving into the Bering Sea during the 25-26 November 2017 period (surface analyses), producing hurricane force winds. Hourly surface wind gusts (knots) are plotted in red on the images.

GOES-15 (GOES-West) Visible (0.63 µm) images during the daylight hours of 25 and 26 November (below) offered a more detailed view of the storm. As with the water vapor images above, hourly surface wind gusts (knots) are plotted in red on the images.

GOES-15 Visible (0.63 µm) images, with hourly surface wind gusts (knots) plotted in red [click to play animation]

GOES-15 Visible (0.63 µm) images, with hourly surface wind gusts (knots) plotted in red [click to play animation]

A plot of hourly surface observations from Adak Island in the Aleutians is shown below. Peak wind gusts of 91 mph were reported on Adak Island and at Unalaska.

Time series of surface observations for Adak, Alaska [click to enlarge]

Time series of surface observations for Adak, Alaska [click to enlarge]

Also of note: the surface pressure at St. Paul Island dropped to unusually low levels as the storm moved into the Bering Sea.

Time series of surface observations from St. Paul Island [click to enlarge]

Time series of surface observations from St. Paul Island [click to enlarge]