The rain of rose
The rain of rose
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On September 28, 2018, which peaked as a Category 4 hurricane in the Eastern Pacific Ocean, Hurricane Rosa weakened before making landfall in the Baja California peninsula four days later. However, as remnants of the storm moved inland, they launched heavy rains and caused flash floods in northwestern Mexico and the southwestern United States.
"We can draw parallels between this storm and Hurricane Florence," He said Gary partyka, an atmospheric GMAO scientist at NASA's Goddard Space Flight Center. "The strength of both was greatly weakened, but both moved enough moisture to produce substantial amounts of rain. The category of a hurricane (which describes its maximum winds) is not very important when it comes to a flood. "
The still image and animation above show the total precipitable water of the atmosphere. That is, the depth of water in a column of the atmosphere if all the water in that column fell as rain. The image and animation, compiled from October 1 to 3, 2018, were created with data from a version of a NASA model known as the Data Assimilation System of the Goddard Earth Observation System (GEOS DAS), which uses satellite data and mathematical representations of physical processes. To calculate what was happening in the atmosphere.
Seen globally, the model shows large circulation patterns, as well as individual storms. This regional view shows Hurricane Rosa as it veered over the eastern Pacific Ocean and separated into Baja California and the southwestern United States. The dark blue areas represent the highest values of precipitable water.
Partyka says it's important to keep in mind that not all the precipitable water falls as rain; A bit of water vapor stays behind in the atmosphere. Nor is it a limit on the amount of rain that can fall, which can increase as water vapor moves toward the air column.
"The indicator is useful to show the potential regions where the rain could be excessive, although an activator is also needed to make the" precipitable water "fall as precipitation," Partyka said. In this case, the remnants of Rosa and a low pressure system off the coast of California served as triggers.
According to the National Weather Service, October 2 was the wettest day in October in Phoenix, Arizona. That day more than 2 inches (5 centimeters) of rain were measured at Phoenix Sky Harbor International. The last time the city saw more than two inches in a day in October was in 1988.
Images from the NASA Earth Observatory by Joshua Stevens, using GEOS-5 data from the Global Modeling and Assimilation Office at NASA GSFC. Story of Kathryn Hansen.
SOURCE LINK ERESVIRAL.COM https://www.beviral.online
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