..Tropical Storm Debby is expected to cause considerable Flash and Urban
Flooding, life-threatening storm surge, and strong winds across portions
of Florida, the Eastern Gulf Coast, and Southeast…
…There is a High Risk of excessive rainfall over parts of the Eastern
Gulf Coast and Southeast on Monday and Tuesday…
…There is a Moderate Risk of excessive rainfall over parts of the
Florida Gulf Coast on Sunday evening…
…There is a Slight Risk of severe thunderstorms over parts of the
Northern Rockies/Northern High Plains on Sunday evening and Northeast,
Lower Great Lakes, Ohio Valley, and into parts of the Upper Mississippi
Valley on Monday…
…There are Excessive Heat Warnings over parts of Central/Southeastern
California and the Southwest and Heat Advisories over parts of the Lower
Mississippi Valley…
Tropical Storm DEBBY is forecast to move northward over the Eastern Gulf
of Mexico into the Florida Big Bend region, making landfall as a
hurricane. The storm will produce heavy rainfall over the Florida Big Bend
region and into southeast Georgia and South Carolina. There is a threat of
a dangerous, life-threatening storm surge along a portion of the Florida
Gulf Coast. With the heavy rain, the WPC has issued a High Risk (level
4/4) of excessive rainfall over the Florida s Eastern Gulf Coast and
Southeast on Monday and Tuesday. Severe, widespread flash flooding is
expected. Areas that normally do not experience flash flooding will flood.
Lives and property are in great danger from Monday into Tuesday.
Moreover, as T. S. DEBBY moves closer to the Florida Big Bend region, the
WPC has issued a Moderate Risk (level 3/4) of excessive rainfall with
heavy rain through Monday morning. The associated heavy rain will create
numerous areas of flash flooding. Furthermore, many streams may flood,
potentially affecting larger rivers. In addition, SPC has issued a Slight
Risk of severe weather with DEBBY over most of the Florida peninsula
through Monday morning. On Tuesday, the SPC continues with a Slight Risk
of severe weather over the Big Bend region of Florida to the northeast
coast of Florida and then into southeastern Georgia and southeastern South
Carolina from Monday into Tuesday morning.
Meanwhile, a front extending from the Upper Great Lakes to the Middle
Mississippi Valley and then westward into the Northern Plains will slowly
move south and eastward to parts of the Mid-Atlantic/Ohio Valley and then
southwestward into the Middle Mississippi Valley and Southern Plains by
Tuesday evening. The western end of the boundary will aid in triggering
showers and severe thunderstorms over parts of the Northern
Rockies/Northern High Plains. Therefore, the SPC has issued a Slight Risk
(level 2/5) of severe thunderstorms over parts of the Northern
Rockies/Northern High Plains through Monday morning. The hazards
associated with these thunderstorms are frequent lightning, severe
thunderstorm wind gusts, hail, and a minimal threat of tornadoes.
On Monday, as the front moves south and eastward, showers and severe
thunderstorms will develop over parts of the Northeast, Lower Great Lakes,
Ohio Valley, and into parts of the Upper Mississippi Valley. Therefore,
the SPC has issued a Slight Risk (level 2/5) of severe thunderstorms over
parts of the Northeast, Lower Great Lakes, Ohio Valley, and into parts of
the Upper Mississippi Valley from Monday through Tuesday morning. The
hazards associated with these thunderstorms are frequent lightning, severe
thunderstorm wind gusts, hail, and a few tornadoes.
Similarly, the showers and thunderstorms will produce heavy rain over
parts of the Great Lakes to the Upper Mississippi Valley. Therefore, the
WPC has issued a Slight Risk (level 2/4) of excessive rainfall over parts
of the Great Lakes to the Upper Mississippi Valley from Monday into
Tuesday 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 Tuesday, the showers and thunderstorms with heavy rain move into the
northern Mid-Atlantic to Southern New England. Therefore, the WPC has
issued a Slight Risk (level 2/4) of excessive rainfall over parts of the
northern Mid-Atlantic to Southern New England on Tuesday. 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.
Also, monsoonal moisture will move into the Southwest on Tuesday, creating
heavy rain. Therefore, the WPC has issued a Slight Risk (level 2/4) of
excessive rainfall over parts of the Southwest on Tuesday. 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.
Meanwhile, upper-level ridging over the Southwest to Central/Southern
Plains will produce above-average temperatures, spawning Excessive Heat
Warnings over parts of Central/Southeastern California, and the Southwest.
The prolonged nature of the heat will increase the risk of heat-related
illness. The developing high-pressure center over the Intermountain West
will maintain fire weather concerns across the region as winds increase
and monsoonal moisture brings the threat of lightning and new potential
wildfires.
Further, increasing heat and humidity will develop over the Lower
Mississippi Valley. The combination of high temperatures and high humidity
will result in major to extreme HeatRisk.
Ziegenfelder
Graphics available at
https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php
