…There is a Slight Risk of excessive rainfall over parts of the Southern
High Plains on Sunday…
…There is a Slight Risk of severe thunderstorms over parts of the
Southern High Plains on Sunday…
…Temperatures will be 20 to 30 degrees above average over the Northern
Plains, Upper/Middle Mississippi Valley, and Upper Great Lakes…
An upper-level low over the Four-Corners Region will move to the Great
Lakes by Tuesday evening. The system will produce an isolated area of snow
overnight Sunday to late Monday afternoon over the Central Rockies.
In addition, the dynamic associated with the upper-low will produce
showers and severe thunderstorms over parts of the Southern High Plains.
Therefore, the SPC has issued a Slight Risk (level 2/5) of severe
thunderstorms over parts of the Southern High Plains through Monday
morning. The hazards associated with these thunderstorms are frequent
lightning, severe thunderstorm wind gusts, hail, and a few tornadoes.
Furthermore, the storms will produce heavy rain over parts of the Southern
High Plains. Therefore, the WPC has issued a Slight Risk (level 2/4) of
excessive rainfall over parts of the Southern High Plains through Monday
morning. The associated heavy rain will create mainly localized areas of
flash flooding, with urban areas, roads, small streams, and low-lying
areas the most vulnerable.
On Monday, showers and thunderstorms will develop over parts of the
Central/Southern Plains through late Monday night. Moreover, ahead of the
upper-level low, an upper-level ridge will allow temperatures to be 20 to
30 degrees above average over the Northern Plains, Upper/Middle
Mississippi Valley, and Upper Great Lakes.
Meanwhile, onshore flow off the Gulf of Mexico will create scattered
showers and thunderstorms over the southern portion of Texas through
Monday evening. Additionally, onshore flow off the Atlantic will produce
scattered showers and embedded thunderstorms over parts of Florida through
Tuesday evening.
Elsewhere, a front over the Pacific Northwest on Sunday moves inland to
the Upper Great Lakes, Central Rockies, and Northern Intermountain Region
by Tuesday evening. The system will produce rain over parts of the Pacific
Northwest through Tuesday. After the front passes the Cascades, snow will
develop over parts of the highest elevations of the Cascades on Monday.
Also, rain will expand on Monday into parts of the Northern
Rockies/Northern High Plains. Overnight Monday, showers and thunderstorms
will develop over parts of the Upper Midwest. The atmosphere will become
more stable on Tuesday afternoon into evening, producing rain over parts
of the Northern Plains/Upper Mississippi Valley.
Ziegenfelder
Graphics available at
https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php
