Day 1 Severe Weather Outlook

Valid 160100Z – 161200Z


Organized severe thunderstorms are not expected across the
contiguous U.S. today.

…01z Update…

Thunder has been removed from the Midwestern U.S. Earlier
thunderstorm activity has diminished with loss of daytime heating
and due to a less favorable airmass downstream across the upper OH
Valley and central Appalachians. Diurnally driven thunderstorm
probabilities have also been removed across AL/GA and portions of
TX/LA eastward to the coastal Carolinas/southeast VA. Isolated
storms will continue to be possible along the TX/LA coastal vicinity
as a broad area of low pressure continues to shift westward across
the Gulf of Mexico. Isolated thunderstorms also are possible across
parts of southern/central FL and the FL east coast as Tropical Storm
Humberto continue to pivot north/northeast tonight well offshore of
the southeastern U.S. coast. Thunderstorm activity will persist a
few more hours across parts of AZ/NM and vicinity as a weak
mid/upper low lifts northeast across the region. Finally, a few
thunderstorms are possible overnight along the WA/OR coast as a
shortwave trough moves toward the Pacific coast.

..Leitman.. 09/16/2019


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