Weather Underground midday recap for Sunday,August 25,2013.
Heavy rainfall and threats of flooding continued from the Desert
Southwest into the Central Great Basin on Sunday, while hot weather
continued in the upper Midwest and scattered showers persisted in the
Southeast.
In the West, Tropical Depression Ivo continue north-northwestward in the
eastern Pacific Ocean, just east of Baja California on Sunday and
pushed abundant tropical moisture northward over far northwestern Mexico
and into the Southwestern U.S. This translated into periods of
widespread and frequent showers with embedded thunderstorms and chances
of locally heavy rainfall from parts of inland southern California and
Arizona into southern Nevada, Utah, and Colorado. Flood and flash flood
warnings and watches have been issued for the region as the dry surface
conditions of the deserts made heavy rainfall more difficult to soak
into the ground.
In the Midwest, temperatures continued to heat up across the region as
an upper level ridge of high pressure strengthened over the Central U.S.
Heat advisories remained in effect for portions of the Dakotas through
southern Minnesota and Iowa into the nearby western regions of Wisconsin
and Illinois. Daytime highs for the region were expected to reach into
the 90s to near the 100 degree mark, while heat indices were expected to
reach into the triple digits. Meanwhile, in addition to heat, scattered
storms were also possible in the region Sunday afternoon and evening.
Areas of central and southern Minnesota and northern Wisconsin were at
slight risk of severe thunderstorm development with damaging wind gusts
and large hail.
In the Southeast, showers and thunderstorms continued near the Gulf
Coast and across Florida through the afternoon. While the strongest of
storms in this region remained offshore, a few strong thunderstorms with
locally heavy rain triggered flood concerns in northern Florida,
southeastern Georgia, and coastal areas of South Carolina.
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