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Strong jet streak over the Upper Midwest

An anomalously-strong 250 hPa jet streak (analysis) was moving across the Upper Midwest late in the day on 27 December 2021. The 205 knots at Chanhassen Minnesota was a 250 hPa record maximum speed for all 00 UTC rawinsondes on 28 December at that site, as was the 207 knots at Green... Read More

GOES-16 Upper-level Water Vapor images, with plots of Derived Motion Winds [click to play animated GIF | MP4]

An anomalously-strong 250 hPa jet streak (analysis) was moving across the Upper Midwest late in the day on 27 December 2021. The 205 knots at Chanhassen Minnesota was a 250 hPa record maximum speed for all 00 UTC rawinsondes on 28 December at that site, as was the 207 knots at Green Bay, Wisconsin. GOES-16 (GOES-East) Upper-level Water Vapor (6.2 µm) images with plots of Derived Motion Winds (DMW) (above) showed this jet streak as it moved over the Chanhassen (KMPX) and Green Bay (KGRB) areas.

GOES-16 Upper-level Water Vapor images, with plots of Derived Motion Winds and contours of RAP model Maximum Wind Speed isotachs [click to play animated GIF | MP4]

12 hours later, the tail end of the still anomalously-strong 250 hPa jet streak (analysis) was moving across Wisconsin and Michigan on the morning of 28 December. The 187 knots at Green Bay, Wisconsin was a 250 hPa record for 12 UTC rawinsondes on 28 December at that site, as was the 181 knots at Gaylord, Michigan. GOES-16 Upper-level Water Vapor images with plots of Derived Motion Winds and contours of RUC40 model maximum wind speeds (above) showed this jet streak as it moved over the Green Bay (KGRB) and Gaylord (KAPX) areas.

Examples of 3 DMWs over Wisconsin and Michigan having speeds in excess of 180 knots are shown below. The DMW speed values were generally in good agreement with the hourly RAP40 isotachs at the Level of Maximum Winds, demonstrating that DMWs can be useful for model verification.

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Satellite signatures of the Webb Space Telescope rocket launch

The Webb Space Telescope was launched from Europe’s Spaceport — located about 40 miles northwest of Kourou, French Guyana (station identifier SOCA) at 1220 UTC on 25 December 2021. A sequence of 1-minute Mesoscale Domain Sector GOES-16 (GOES-East) images from all 16 ABI spectral bands (above) showed one or both of two features: (1) the hot thermal signature... Read More

GOES-16 ABI spectral bands 1-16 [click to play animated GIF | MP4]

The Webb Space Telescope was launched from Europe’s Spaceport — located about 40 miles northwest of Kourou, French Guyana (station identifier SOCA) at 1220 UTC on 25 December 2021. A sequence of 1-minute Mesoscale Domain Sector GOES-16 (GOES-East) images from all 16 ABI spectral bands (above) showed one or both of two features: (1) the hot thermal signature of the Ariane 5 solid rocket booster and core engines, moving rapidly eastward, and (2) the reflective and/or colder signature of the rocket engine condensation cloud, most of which moved slowly northward away from the coast. 

At 1221 UTC, a cluster of warm pixels — a signature of the rocket engines — was evident in all Near-Infrared and Infrared ABI spectral bands (below).

GOES-16 ABI spectral bands at 1221 UTC [click to play animated GIF | MP4]

A closer view of GOES-16 “Red” Visible (0.64 µm) images (below) showed the motion and deformation of the rocket condensation cloud in greater detail. Changes in wind direction and speed with height tended to distort the shape of the condensation cloud, moving it in different directions. Another view of this rocket condensation cloud is available here, using CSPP GeoSphere.

GOES-16 “Red” Visible (0.64 µm) images [click to play animated GIF | MP4]

The Plume RGB (below) is very useful for providing a single product to highlight all of the aforementioned rocket launch features (a shorter-duration animation is available here). Examples of the Plume RGB for other rocket launches can be seen in this blog post .

GOES-16 Plume RGB images (credit: Tim Schmit, NOAA/NESDIS/ASPB) [click to play animated GIF | MP4]

The ascending rocket plume was also seen on the extreme eastern limb of a GOES-17 (GOES-West) Visible image (below). Wind-induced distortion of the ascending rocket plume was evident in that view as well.

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Texas oil refinery explosion and fire

An explosion and fire occurred at the ExxonMobil refinery in Baytown, Texas around 12:50 AM (0650 UTC) on 23 December 2021 — and a comparison of GOES-17 (GOES-West) vs GOES-16 (GOES-East) Near-Infrared (1.61 µm and 2.24µm) and Shortwave Infrared (3.9µm) images (above) displayed the thermal signature of the fire. The maximum 3.9... Read More

GOES-17 (left) and GOES-16 (right) Near-Infrared and Shortwave Infrared images [click to play animated GIF | MP4]

An explosion and fire occurred at the ExxonMobil refinery in Baytown, Texas around 12:50 AM (0650 UTC) on 23 December 2021 — and a comparison of GOES-17 (GOES-West) vs GOES-16 (GOES-East) Near-Infrared (1.61 µm and 2.24µm) and Shortwave Infrared (3.9µm) images (above) displayed the thermal signature of the fire. The maximum 3.9 µm infrared brightness temperature sensed by GOES-16 was 343.02 K (compared to 337.82 K by GOES-17).

GOES-16 Plume RGB images (credit: Tim Schmit, NOAA/NESDIS/ASPB) [click to play animated GIF | MP4]

GOES-16 (above) and GOES-17 (below) Plume RGB images created using Geo2Grid also helped to highlight the thermal signature of the fire (red pixels).

GOES-17 Plume RGB images (credit: Tim Schmit, NOAA/NESDIS/ASPB) [click to play animated GIF | MP4]

In a time-matched comparison of Shortwave Infrared images from GOES-16 and Suomi-NPP about 1.5 hours after the initial refinery explosion (below), the GOES-16 thermal signature was beginning to diminish (exhibiting an infrared brightness temperature of 14.7ºC) while the higher spatial resolution Suomi-NPP VIIRS shortwave infrared brightness temperature was notably warmer at 26.2ºC.

Shortwave Infrared images from GOES-16 and Suomi-NPP [click to enlarge]

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GOES ABI and Rocket Launches

Recent rocket launches as seen by NOAA‘s GOES ABI. More on the multi-spectral ‘rocket plume’ RGB: quick guide and CIMSS Satellite Blog post. Or this post on seeing the Landsat launch.December 21, 2021 from Kennedy Space Center #ICYMI: This morning at 5:07am ET, @SpaceX's Dragon spacecraft lifted off from Launch Complex 39A to begin its... Read More

Recent rocket launches as seen by NOAA‘s GOES ABI. More on the multi-spectral ‘rocket plume’ RGB: quick guide and CIMSS Satellite Blog post. Or this post on seeing the Landsat launch.

December 21, 2021 from Kennedy Space Center

“Rocket plume RGB on December 21, 2021.

December 19, 2021 from Kennedy Space Center

Also from Cape Canaveral, but right on the edge of the meso-scale sector! (and as an animated gif).

“Rocket plume” RGB from December 19, 2021.

December 18, 2021 from Vandenberg Space Force Base

A view from GOES-17 (animated gif), note more striping due to increased instrument noise.

“Rocket plume RGB on December 18, 2021.

H/T

NOAA GOES-16 and -17 ABI data are via the University of Wisconsin-Madison SSEC Satellite Data Services. These images were made using the geo2grid software, developed at the UW/SSEC. More GOES-16 and -17 imagery and other information, including the SIFT software developed at UW/SSEC to quickly test RGB changes.

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