Cyclone Nivar makes landfall in India

November 25th, 2020 |

US Space Force EWS-G1 Infrared (10.7 µm) images [click to play animation | MP4]'

US Space Force EWS-G1 Infrared (10.7 µm) images [click to play animation | MP4]

US Space Force EWS-G1 Infrared (10.7 µm) images (above) showed Category 1 Cyclone Nivar making landfall along the southeastern coast of India on 25 November 2020.

EUMETSAT Meteosat-8 Infrared Window (10.8 µm) images with contours of deep-layer wind shear from the CIMSS Tropical Cyclones site (below) indicated that Nivar was moving through an environment of low shear (and over warm water) — factors favorable for the storm maintaining its intensity.

Meteosat-8 Infrared Window (10.8 µm) images, with contours of deep-layer wind shear [click to enlarge]

Meteosat-8 Infrared Window (10.8 µm) images, with contours of deep-layer wind shear [click to enlarge]

Medicane makes landfall in Tunisia

November 22nd, 2020 |

EUMETSAT Meteosat-11 High Resolution Visible (0.8 µm) images [click to play animation | MP4]

EUMETSAT Meteosat-11 High Resolution Visible (0.8 µm) images [click to play animation | MP4]

EUMETSAT Meteosat-11 High Resolution Visible (0.8 µm) images (above) showed a westward-moving medicane which developed a fairly distinct eye shortly before making landfall along the eastern coast of Tunisia on 22 November 2020.

A Suomi NPP VIIRS True Color Red-Green-Blue (RGB) image displayed using RealEarth (below) provided a higher-resolution view of the medicane’s eye and convective banding at 1152 UTC.

Suomi NPP VIIRS True Color RGB image valid at 1152 UTC [click to enlarge]

Suomi NPP VIIRS True Color RGB image valid at 1152 UTC [click to enlarge]

A plot of surface observations for Monastir’s Habib Bourguiba International Airport DTMB (below) showed that winds gusted to 43 knots as the system made landfall.

Plot of surface observations for Monastir's Habib Bourguiba International Airport [click to enlarge]

Plot of surface observations for Monastir’s Habib Bourguiba International Airport [click to enlarge]

Medicane Ionas after Greece

September 21st, 2020 |

VIIRS Daily True-Color images, 18-21 September 2020 (Click to animate)

What did the Medicane that hit Greece do afterwards?  VIIRS True-color imagery, above, taken from the NASA WorldView site, show an intact feature moving along the northern coast of Africa on 20-21 September towards the Nile Delta.  The amount of cloudiness is in general declining as it moves into a drier environment.  Total Precipitable Water (TPW) from the MIMIC website shows the general drying surrounding the storm.

MIMIC hourly estimates of Total Precipitable Water from 00 UTC on 17 September to 14 UTC on 21 September 2020 (Click to animate)


Rick Kohrs, SSEC/CIMSS, supplied the True-Color multi-day animation from Meteosat-11 imagery below. (Updated on 23 September to include date annotations)

Meteorsat-11 True-Color Imagery over the Mediterranean sea, 15-21 September 2020 (Click to animate)

Blowing dust off the coast of Namibia and South Africa

August 7th, 2020 |

VIIRS True Color RGB images from Suomi NPP and NOAA-20 [click to enlarge]

VIIRS True Color RGB images from Suomi NPP and NOAA-20 [click to enlarge]

A sequence of 3 VIIRS True Color Red-Green-Blue (RGB) images from Suomi NPP and NOAA-20 as visualized using RealEarth (above) showed plumes of blowing dust moving off the coast of Namibia and South Africa on 07 August 2020.

EUMETSAT Meteosat-11 Visible (0.6 µm) images (below) displayed the motion of the dust plumes during the daytime hours.

Meteosat-11 Visible (0.6 µm) images [click to play animation | MP4]

Meteosat-11 Visible (0.6 µm) images [click to play animation | MP4]

A plot of surface data from Luderitz, Namibia (station identifier FYLZ) is shown below; it indicated that winds gusted to 36 knots (41 mph) at 08 UTC.

Plot of surface data from Luderitz, Namibia [click to enlarge]

Plot of surface data from Luderitz, Namibia [click to enlarge]

H/T to Santiago Gassó for bringing this event to our attention.