Weather Updates

Weather Update 8.18.21 - U.S.

Posted by Jarrett on Aug 18, 2021 8:41:35 AM

Summary: Post-Tropical Cyclone Fred will bring heavy rain which may lead to significant flash flooding, gusty winds and a few tornadoes as it tracks north from the upper Ohio Valley into New England Wednesday and Thursday, moving up the Appalachians and Cumberland Plateau while transitioning into a non-tropical low. Flood and Flash Flood Watches are in effect for portions of the southern and central Appalachians as well as sections of the adjacent Piedmont and Cumberland Plateau. Meanwhile, Atlantic Tropical Storms Henri and Grace are expected to strengthen into hurricanes, and Pacific Hurricane Linda is slowly moving towards Hawaii. Flood Watches: Ohio, Kentucky, West Virginia, New York, Pennsylvania, Maryland, Virginia, Vermont
Post-Tropical Cyclone Fred
Tropical Depression Fred will spread its threats of flooding rain and isolated tornadoes inland through the mid-Atlantic and Northeast on Wednesday.
  • Eastern Carolinas
    • 1-2 inches of rain, up to 6
    • Through Tonight
  • Upper Ohio Valley, northern Mid-Atlantic, New England
    • 2-4 inches of rain, up to 6
    • Through Thursday night
A few tornadoes are possible today across parts of the inland Mid-Atlantic region.
Hurricane Linda
Linda, currently a category 2 hurricane, has a slight chance of impacting HI by the weekend. Freight to or from HI may be delayed
Tropical Storm Henri 
Tropical Storm Henri is expected to intensify into a hurricane over the next several days. Henri is currently centered southeast of Bermuda, with a slight chance of causing windy/rainy conditions this weekend along the Atlantic US Coast. 
Tropical Storm Grace
Tropical Storm Grace is expected to intensify into a hurricane as it tracks toward a landfall in Mexico's Yucatan Peninsula by early Thursday. While Grace is not expected to impact the US at this time, but will likely cause hurricane conditions across the eastern Yucatan Peninsula and Cayman Islands, while tropical storm conditions are expected across the Veracruz state and southwest Cuba. Shipments to/from these areas will likely be delayed. 
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Topics: weather

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