…Unsettled conditions for portions of the eastern U.S. with strong to
severe thunderstorms along with areas of possible flash flooding…
…Dangerous heat and humidity will continue across the Southern Plains to
the Gulf Coast through Monday…
…Fire weather concerns continue for western portions of the Great Basin
this weekend while severe thunderstorm and flash flood potential exist
from Utah into parts of Arizona…
Locations near and ahead of a slow moving cold front in the Midwest will
see increased potential for thunderstorms with coverage and intensity
peaking in the afternoon and evening. The airmass ahead of the front from
the Ohio Valley to much of the East Coast will be humid, containing the
potential for slow moving storms capable of producing areas of flash
flooding, along with severe weather, mainly in the form of damaging
straight line winds. Similar threats will shift east for Sunday ahead of
the cold front with flash flood and severe weather threats extending from
the northern Mid-Atlantic region into the Southeast. By Monday, cooler and
drier conditions will begin to spread east from the Upper Midwest into the
Ohio Valley as thunderstorm and flood risks continue to translate eastward.
An upper level ridge will remain quasi-stationary to the south of the
front over the southern High Plains through early next week. This feature
will maintain high temperatures from the upper 90s to middle 100s from
eastern New Mexico into Texas and the central Gulf Coast through Monday.
Some daily record high temperatures could be broken across these same
regions. People living in these locations should be aware of and plan for
the heat by visiting heat.gov for more information.
The western U.S. will also be fairly active over the next few days. A slow
moving upper level trough off of the Pacific Northwest and ridge over the
southern High Plains will focus anomalous moisture and a favorable
atmospheric profile for flash flooding and severe straight line winds
across portions of Utah and surrounding adjacent states. Farther west,
drier conditions combined with gusty winds will promote a dangerous
environment for the spreading of wildfires. The Storm Prediction Center
has a Critical Risk for wildfires over south-central Nevada and
southeastern Oregon today with similar locations at risk on Sunday, though
the risk may be slightly lower on Sunday compared to today.
Otto
Graphics available at
https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php
