An anomalously-strong upper tropospheric jet stream was moving over northern Colorado on 25 March 2020 — GOES-16 (GOES-East) Upper-level Water Vapor (6.2 µm) images, with plots of Derived Motion Winds and contours of RUC40 model maximum wind speeds (above) revealed that the highest satellite-tracked Derived Motion Wind speeds just northeast of Grand Junction, Colorado (KGJT)... Read More
![GOES-16 Upper-level Water Vapor (6.2 µm) images, with plots of Derived Motion Winds and contours of RUC40 model maximum wind speeds [click to play animation | MP4]](https://cimss.ssec.wisc.edu/satellite-blog/images/2020/03/200325_goes16_waterVapor_winds_rap40maxWinds_CO_anim.gif)
GOES-16 Upper-level Water Vapor (6.2 µm) images, with plots of 6.2 µm Derived Motion Winds and contours of RUC40 model maximum wind speeds [click to play animation | MP4]
![Plot of rawinsonde data from Grand Junction, Colorado at 00 UTC on 26 March [click to enlarge]](https://cimss.ssec.wisc.edu/satellite-blog/images/2020/03/200326_00utc_kgjt_raob.png)
Plot of rawinsonde data from Grand Junction, Colorado at 00 UTC on 26 March [click to enlarge]
![250 hPa wind speed anomalies at 00 UTC on 26 March [click to enlarge]](https://cimss.ssec.wisc.edu/satellite-blog/images/2020/03/200326_00utc_250windSpeedAnomaly.png)
250 hPa wind speed anomalies at 00 UTC on 26 March [click to enlarge]
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GOES-16 (GOES-East) “Red” Visible (0.64 um) and Shortwave Infrared (3.9 um) images (above) showed smoke plumes and hot thermal signatures associated with wildfires between Pueblo (MMPB) and Veracruz (MMVC) in southern Mexico — smoke from these fire was drifting westward over the Mexico City (MMMX) area.Farther to the east, GOES-16 Shortwave Infrared... Read More
GOES-16 “Red” Visible (0.64 um) and Shortwave Infrared (3.9 um) images [click to play animation | MP4]
Farther to the east, GOES-16 Shortwave Infrared images (below) displayed the hot thermal signatures of widespread agricultural fires across Mexico’s Yucatan Peninsula. Such fires occur here and over much of Central America as farmers prepare their fields for another round of crop planting.
![GOES-16 Shortwave Infrared (3.9 um) images [click to play animation | MP4]](https://cimss.ssec.wisc.edu/satellite-blog/images/2020/03/200325_goes16_shortwaveInfrared_Yucatan_fires_anim.gif)
GOES-16 Shortwave Infrared (3.9 um) images [click to play animation | MP4]
![GOES-16 True Color RGB images [click to play animation | MP4]](https://cimss.ssec.wisc.edu/satellite-blog/images/2020/03/200325_goes16_trueColorRGB_Gulf_of_Mexico_smoke_anim.gif)
GOES-16 True Color RGB images [click to play animation | MP4]
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Two interesting small-scale features were seen in GOES-16 (GOES-East) imagery on 24 March 2020. First of all, 1-minute Mesoscale Domain Sector “Red” Visible (0.64 µm) images (above) showed a mesovortex that was migrating west-northwestward across Lake Erie during the day. This feature had a diameter of around 10 miles — such a small-scale circulation was not... Read More
GOES-16 “Red” Visible (0.64 µm) images [click to play animation | MP4]
During the preceding overnight hours, an early signature of the mesovortex was evident in Suomi NPP VIIRS Shortwave Infrared (3.74 µm) and “Fog product” Brightness Temperature Difference (BTD) images at 0806 UTC (below).
![Suomi NPP VIIRS Shortwave Infrared (3.74 µm) and "Fog product" Brightness Temperature Difference (BTD) images [click to enlarge]](https://cimss.ssec.wisc.edu/satellite-blog/images/2020/03/200324_viirs_shortwaveInfrared_fogBTD_Lake_Erie_mesovortex_anim.gif)
Suomi NPP VIIRS Shortwave Infrared (3.74 µm) and “Fog product” Brightness Temperature Difference (BTD) images [click to enlarge]
![GOES-16 Day Cloud Phase Distinction RGB images [click to play animation | MP4]](https://cimss.ssec.wisc.edu/satellite-blog/images/2020/03/200324_goes16_dayCloudPhaseDistinction_Dakotas_undular_bore_anim.gif)
GOES-16 Day Cloud Phase Distinction RGB images [click to play animation | MP4]
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The day before the earliest vernal equinox (0349 UTC on 20 March) in more than 100 years (explanation) is depicted above in an image (courtesy Rick Kohrs, SSEC) that includes vertical slices of local noon imagery on 19 March. The sun was directly overhead, passing from the southern hemisphere to... Read More
Composite true-color image at local noon from Geostationary Satellites on 19 March 2020 (Click to enlarge)
The day before the earliest vernal equinox (0349 UTC on 20 March) in more than 100 years (explanation) is depicted above in an image (courtesy Rick Kohrs, SSEC) that includes vertical slices of local noon imagery on 19 March. The sun was directly overhead, passing from the southern hemisphere to the northern hemisphere, at noon 20 March at 121.7 degrees East Longitude, close to Bukaan on the island of Sulawesi in Indonesia.
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