Weather Updates

Weather Update 9.21.20 - U.S.

Posted by Jarrett on Sep 21, 2020 8:01:59 AM

Summary - Tropical Storm Beta is centered just over 100 miles south of Galveston, Texas, and is moving westward towards the Texas coast at little over 5 mph. The expected slow motion of Beta will produce a long duration rainfall event, bringing the risk of storm surge and flooding from the middle Texas coast to southeast Louisiana. Meanwhile, Hurricane Teddy will remain in the Atlantic but bring swells, dangerous surf, and rip currents to much of the east coast. States with Active Advisories: Texas, Louisiana

After landfall, Beta will drift northeastward on the Texas coast Monday night through Wednesday.

Storm Surge
Impacting portions of the Texas and Louisiana coasts near times of high tide through Tuesday. Storm Surge warnings are in effect for the following areas:
  • Port Aransas, Texas, to the Rockefeller Wildlife Refuge, Louisiana
  • This includes Copano Bay, Aransas Bay, San Antonio Bay, Matagorda Bay, Galveston Bay, Sabine Lake and Lake Calcasieu
Flooding Rainfall
Flash, Urban, and minor river flooding is likely. Rainfall will also spread northeastward through the end of the week. 
  • 5-10 inches, up to 15:  Southern Louisiana and the middle and upper Texas coast
  • 3-5 inches: Inland from the coast as far north and east as the ArkLaTex Region and the lower Mississippi Valley
Tropical-Storm-Force Winds
Spreading westward across the Texas coast later this morning and continue into Tuesday. Tropical Storm Warning are in effect for the following areas:
  • Port Aransas, Texas, to Morgan City, Louisiana
  • This includes Houston and Victoria, Texas, and Cameron, Louisiana
Possible on the upper Texas Coast and in southwest Louisiana on Monday.
Hurricane Beta has been named because the 2020 Atlantic hurricane season names list was used up when storms Wilfred, Alpha and Beta all formed Friday. Additional storms will be named by letters in the Greek alphabet, which has only happened once before, in 2005. This is also the first time in the modern era that three new storms formed within 24 hours, with August 15, 1893 being the only other day in recorded history in which three storms formed on the same calendar day.

Topics: weather

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