…Severe Weather potential over the Southern Plains and Lower Mississippi
Valley today…
…Storm system brings unsettled weather to the West…
…Critical Fire Weather Risk over parts of the Southern High Plains
through the rest of the week…
…Warm temperatures in the Central and Eastern U.S….
A potent shortwave and surface low pressure system will move across the
Southern Plains today. Scattered showers and thunderstorms will develop
over the ArkLaTex and Lower Mississippi Valley tonight. The Storm
Prediction Center issued a Slight Risk of Severe Thunderstorms over parts
of northeast Texas southeast Oklahoma, western Arkansas and northwestern
Louisiana, where large hail and localized wind damage are possible
beginning this afternoon and continuing into early Thursday morning.
In the West, an amplified upper trough will move ashore today, spreading
Pacific moisture, cooler air and strong winds across the region. Heavy
snow and powerful wind gusts of 40-70 mph below many major passes will
create dangerous to potentially impossible travel conditions across the
Sierra Nevada and northern California higher terrain this afternoon into
Thursday. Snowfall of 1 to 3 feet or more is possible which, along with
high winds, would cause scattered power outages. Heavy snow above 5000
feet and high winds will cause widespread hazardous travel over much of
the southern Intermountain West and Rockies Thursday into Friday. Periods
of heavy rain with rates of 0.5″/hr are likely in parts of southern
California through Thursday morning. This could cause flash flooding,
including shallow debris flows across sensitive burn scars or isolated
rockslides, as well as hazardous travel due to ponding of water and slick
roads.
Persistent dry, warm and windy conditions will promote Critical Fire
Weather conditions across the Southern High Plains through the rest of the
week. Upper-level ridging will support above average temperatures across
the Central and Eastern U.S. for the next few days. High temperatures in
the 50s, 60s and 70s over the Midwest and Northern Plains will represent
20 – 40 degree anomalies through the end of the work week.
Kebede
Graphics available at
https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php
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