GOES-14 is operating in SRSO-R Mode

August 9th, 2016 |

GOES-14 0.62 µm Visible images from 1230 to 1245 UTC on 9 August 2016 [click to play animation]

GOES-14 0.62 µm Visible images from 1230 to 1245 UTC on 9 August 2016 [click to play animation]

GOES-14 is in SRSO-R mode from today through 25 August, providing 1-minute imagery over western portions of the United States. The geographic footprint for 9 August 2016 is shown above (realtime images), and the 15-minute animation contains 13 images, versus the normal 2 that GOES-East or GOES-West would provide during routine scanning. This one-minute imagery is being provided to help prepare for GOES-R; GOES-R is scheduled to launch on 4 November, and when operational it will routinely provide 1-minute imagery in mesoscale sectors.

Shown below is a comparison of GOES-15 (GOES-West), GOES-14 and GOES-13 (GOES-East) Visible images covering the longer 1-hour period of 1230-1330 UTC, focusing on a area of thunderstorms over North Texas. During this time, there are 53 images from GOES-14, compared to 7 images from GOES-15 and 5 images from GOES-13 — note how the evolution of overshooting tops is very easy to follow using the 1-minute GOES-14 imagery.

GOES-15 (left), GOES-14 (center and GOES-13 (right) Visible images [click to play animation]

GOES-15 (left), GOES-14 (center and GOES-13 (right) Visible images [click to play animation]

GOES-14 also monitored the dissipation of fog/low stratus clouds over Nebraska, as seen in the animation below. Additional details can be found here.

GOES-14 Visible (0.62 µm) images [click to play animation]

GOES-14 Visible (0.62 µm) images [click to play animation]

Later in the day, the GOES-14 Visible (0.62 µm) animation below (also available as a large 62 Mbyte animated GIF) showed the development of severe thunderstorms in Montana and Wyoming, which produced several reports of damaging winds and large hail (up to 4.0 inches in diameter). This example is particularly noteworthy due to the fact that the storm was well-sampled by satellite imagery in a region of poor radar coverage (h/t to @DanLindsey77). For additional details on this case, see the VISIT Meteorological Interpretation Blog.

GOES-14 Visible (0.62 µm) images, with surface reports and SPC storm reports of hail (yellow) and wind (cyan) [click to play MP4 animation]

GOES-14 Visible (0.62 µm) images, with surface reports and SPC storm reports of hail (yellow) and wind (cyan) [click to play MP4 animation]

A 3-panel comparison of Visible images from GOES-15 and GOES-13 (available at the routine 15-30 minute interval) and GOES-14 (available at 1-minute intervals) is shown below.

GOES-13 (left), GOES-14 (center) and GOES-13 (right) 0.62 um Visible images [click to play MP4 animation]

GOES-13 (left), GOES-14 (center) and GOES-13 (right) 0.62 um Visible images [click to play MP4 animation]

During the early afternoon hours, the GOES-15 (GOES-West) satellite performed a “North/South Station Keeping maneuver”, during which there was no imaging between 1700-1900 UTC. To help cover for this outage, the GOES-13 (GOES-East) satellite was paced into Full Disk scan mode, which provided only 1 image every 30 minutes. During this time period, the 1-minute imagery from GOES-14 (shown below) was essential to monitor such features as a wildfire burning southeast of Ely, Nevada (station identifier KELY). Two apparent flare-ups of the fire were seen in the areal coverage of the hottest pixels (red) on GOES-14 Shortwave Infrared (3.9 µm) images at 1805 UTC and 1807 UTC, which were not captured by the 30-minute GOES-13 imagery. In fact, the 1745 UTC GOES-13 Shortwave Infrared image suggested that there was a brief reduction in the intensity of the fire (indicated by a lack of red pixels), which was not the case according to the 1-minute GOES-14 imagery.

GOES-15 (left panels), GOES-14 (center panels) and GOES-13 (right panels) 0.62 m Visible and 3.9 µm Shortwave Infrared images [click to play animation]

GOES-15 (left panels), GOES-14 (center panels) and GOES-13 (right panels) 0.62 m Visible (top) and 3.9 µm Shortwave Infrared (bottom) images [click to play animation]

Hurricane Earl makes landfall in Belize

August 4th, 2016 |
GOES-14 10.7 µm Infrared Window images, hourly from 0115 through 1015 UTC on 4 August 2016 [click to play animation]

GOES-14 10.7 µm Infrared Window images, hourly from 0115 through 1015 UTC on 4 August 2016 [click to play animation]

Hurricane Earl made landfall around 0600 UTC on 4 August in Belize. The hourly animation from GOES-14, above, shows a rapid warming of the coldest cloud tops over Earl after landfall, as commonly happens. GOES-14 is out of storage to support SRSO-R Operations beginning Tuesday August 9.

The GOES-14 image at landfall shows coldest cloud tops on the north side of the storm. A timely Metop-A overpass (times available at this site) from several hours before landfall provided ASCAT winds, below, that also show strongest winds to the north side of this storm.

Metop-A ASCAT Scatterometer Winds, 0238 UTC 4 August 2016 [click to enlarge]

Metop-A ASCAT Scatterometer Winds, 0238 UTC 4 August 2016 [click to click to enlarge]

Although the strong winds of Earl have diminished now that the storm is over land, Total Precipitable Water values, below, (showing MIRS data, available at this site) remain high and flooding continues to be a threat. Earl is forecast to move along the southern tip of the Bay Campeche starting tomorrow. For more details see the National Hurricane Center website.

Morphed MIRS Total Precipitable Water, 0600 UTC on 4 August 2016 [click to enlarge]

Morphed MIRS Total Precipitable Water, 0600 UTC on 4 August 2016 [click to click to enlarge]

Three geostationary satellites viewed Earl as it moved across the southern Yucatan peninsula. GOES-15, GOES-14 and GOES-13 visible imagery from near 1200 UTC is shown below.

GOES-15, GOES-14, GOES-13 (left, center,right) Visible Imagery of Earl over Belize and Mexico, ~1200 UTC on 4 August 2016 [click to enlarge]

GOES-15, GOES-14, GOES-13 (left, center,right) Visible Imagery of Earl over Belize and Mexico, ~1200 UTC on 4 August 2016 [click to click to enlarge]

Two Geostationary Satellites viewing a system approximately equidistant from both satellites allowed for stereoscopic imagery to be created, below.

GOES-13 and GOES-14 Visible Imagery (0.62 µm), 1415 - 2115 UTC on 4 August 2016 [click to play animation]

GOES-13 and GOES-14 Visible Imagery (0.62 µm), 1415 – 2115 UTC on 4 August 2016 [click to play animation]

GOES-14 is out of Storage

August 1st, 2016 |

 

GIA14_01AUG2016_20N_85W_UPDATE

GOES-14 Imager Channels at 1755 UTC on 1 August 2016 [Click to enlarge]

GOES-14 has again been reactivated, and is distributing data from its location over the Equator at 105 W. GOES-14 will be entering SRSO-R mode next week, starting on 9 August (link) and continuing through 26 August.

Short animations of GOES-14 Visible (0.63 um) and Infrared Window (10.7 um) imagery are shown below.

GOES-14 Visible (0.63 um) images [click to play animation]

GOES-14 Visible (0.63 um) images [click to play animation]

GOES-14 Infrared Window (10.7 um) images [click to play animation]

GOES-14 Infrared Window (10.7 um) images [click to play animation]

A 3-panel comparison, below, shows Idaho/Montana wildfire smoke plumes as viewed from GOES-15 (GOES-West), GOES-14 and GOES-13 (GOES-East). The images are displayed in the native projection of each satellite.

GOES-15 (left), GOES-14 (center) and GOES-13 (right) Visible (0.63 µm) images [click to play animation]

GOES-15 (left), GOES-14 (center) and GOES-13 (right) Visible (0.63 µm) images [click to play animation]

GOES-14 SRSO-R: severe thunderstorms in parts of the Midwest and the Southern Plains

May 11th, 2016 |

GOES-14 Infrared Window (10.7 µm) images, with parallax-corrected SPC storm reports [click to play animation]

GOES-14 Infrared Window (10.7 µm) images, with parallax-corrected SPC storm reports [click to play animation]

The GOES-14 satellite remained in Super Rapid Scan Operations for GOES-R (SRSO-R) mode for part of the day on 11 May 2016; Infrared Window (10.7 µm) images (above) showed the nocturnal development of a severe thunderstorm ahead of an approaching occluded front (surface analyses) that dropped large amounts of hail in the northwestern section of Omaha, Nebraska (station identifier KOMA), stripping trees of foliage and clogging some city streets (even requiring the use of snow plows and shovels: photo 1 | photo 2). The storm began to exhibit an “enhanced-V” signature just prior to the time that it started producing large hail in Omaha. Note: the plotted location of the SPC storm reports on this animation (and all animations on this blog post) have been parallax-corrected, moving them slightly north-northeastward to match the location of cloud top features having a mean altitude of 10 km. The letters UNK after a W wind report denotes “unknown intensity”.

During the late afternoon and early evening, GOES-14 Visible (0.63 µm) images (below; also available as a large 59 Mbyte animated GIF) revealed additional thunderstorms which produced hail and damaging winds across eastern Missouri and southern Illinois (SPC storm reports). These storms fired along an outflow boundary left in the wake of another mesoscale convective system (MCS)  that moved through the region earlier in the day.

GOES-14 Visible (0.63 µm) images, with parallax-corrected SPC storm reports [click to play MP4 animation]

GOES-14 Visible (0.63 µm) images, with parallax-corrected SPC storm reports [click to play MP4 animation]

Side note: there was a planned outage of GOES-14 SRSO-R imagery from 1059-2119 UTC. During this time, the GOES-13 (GOES-East) satellite had been placed into Rapid Scan Operations (RSO) mode, providing images as frequently as every 5-7 minutes. Visible (0.63 µm) images (below) showed the mesoscale convective system that produced hail as large as 4.0 inches in diameter in the St. Louis, Missouri area.

GOES-13 visible (0.63 µm) images, with parallax-corrected SPC storm reports [click to play animation]

GOES-13 visible (0.63 µm) images, with parallax-corrected SPC storm reports [click to play animation]

Finally, late in the day another MCS developed in North Texas, just west of the Dallas/Fort Worth area. GOES-14 Visible (0.63 µm) images with parallax-corrected SPC storm reports (below; also available as a large 54 Mbyte animated GIF) showed the large hail and damaging winds produced by this storm. One feature of interest was the “storm-top plume” that emanated from the largest cluster of overshooting tops, and was blown northeastward.

GOES-14 Visible (0.63 µm) images, with parallax-corrected SPC storm reports [click to play MP4 animation]

GOES-14 Visible (0.63 µm) images, with parallax-corrected SPC storm reports [click to play MP4 animation]