A tropical depression has turned into a tropical storm that meteorologists named Paulette. Suomi NPP or National Polar-Orbiting Partnership, the NASA and NOAA owned satellite, had given weather forecasters the first visible image of the new tropical storm. At the same time, it passed through and developed in the north-central part of the Atlantic Ocean last September 8.
(Photo: NASA Worldview, Earth Observing System Data and Information System (EOSDIS))
On Sept. 8, NASA-NOAA’s Suomi NPP satellite provided forecasters with a visible image of Tropical Storm Paulette in the Central North Atlantic Ocean. Credit: NASA Worldview, Earth Observing System Data and Information System (EOSDIS).
Paulette joins the ranks of other tropical storms that have broken a record for this hurricane season and year.
Last Sunday, September 6, 2020, at around 11 PM EDT at roughly 1,160 miles or 1,865 kilometers, tropical depression number 17 had developed at the western part of Cape Verde.
After 12 hours, at 11 AM of September 7 EDT, developed strength and had sufficiently organized to form into a tropical storm. It was subsequently called Tropical Storm Paulette.
Paulette’sPaulette’s formation and development set a new record for the hurricane season, making it the 16th named tropical storm in this Atlantic hurricane season 2020. As the 16th named tropical storm of the Atlantic season, it is also the earliest, surpassing the previous record, tropical storm Philippe, by ten days, which developed last September 17, 2005.
Last September 8, the VIIRS or Visible Infrared Imaging Radiometer Suite instrument carried by the Suomi NPP satellite gave meteorologists the first visible picture of the storm as it passed overhead.
According to forecasters who observe the VIIRS image, the storm’s organization had improved significantly from the previous night. It is shearing, with outflow being limited to the southwest. Vertical wind shearing pushes against this storm from the northeast side.
Cloud Top Temperatures
At 12:05 AM EDT on September 8, the NASA-owned Aqua satellite made an analysis of Paulette with the use of the Atmospheric Infrared Sounder or AIRS. Through it, it was discovered that the cloud top’ stop’s coldest temperatures were equal to or lower than -63º F. According to NASA’sNASA’s research, temperatures of the cloud top with that kind of level means that the strong storm can cause heavy rain.
Monitoring the Storm’s Convection
The AMSU or Advanced Microwave Sounding Unit machine is a microwave radiometer with multiple channels carried by meteorological satellites. This tool records and assesses microwave radiation bands from our atmosphere to conduct atmospheric sounding of the moisture and temperature. AMSU is taken by NOAA’sNOAA’s weather satellites and the Aqua satellite.
According to the National Hurricane Center, the overnight images provided by AMSU showed that convection has started to wrap around the west part of the storm’s circulation.
On September 8 at 11 AM EDT, Paulette’sPaulette’s center was seen near the location of 18.4ºN latitude and 43.3ºW longitude. It is also moving toward the northwest’s direction with a speed of nearly six miles per hour or nine kilometers per hour.
Its central pressure is an estimated minimum of 995 millibars, while the maximum sustained winds were measured at nearly 100 kph or 65 mph with higher wind gusts.
Paulette may shift to the west-to-northwest or western direction in the coming two days, and a slight forward speed increase can be expected. Today, more strengthening can occur, with the tropical depression that turned into a tropical storm, possibly reaching hurricane strength as early as tonight.
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