…Record-breaking heat will continue across California and the Southwest
through the remainder of the weekend and into early next week…
…Dangerous fire weather conditions are forecast to persist through this
evening across the central Rockies and into the central Plains…
…Tropical Storm Milton forms over the southwest Gulf of Mexico and is
expected to steadily intensify as it moves northeastward…
…Rainfall well ahead of Tropical Storm Milton will arrive across the
Florida Peninsula and Keys bringing increasing concerns for flooding…
A record-breaking late-season heat wave will continue through the
remainder of the weekend and into early next week across central and
southern California and the Desert Southwest as a ridge of high pressure
aloft persists over the region. Forecast highs will once again soar into
the upper 90s to low 100s outside of the immediate coastal areas of
central and southern California, with high temperatures reaching as high
as the low 110s for the interior portions of the Desert Southwest.
Numerous daily record-tying or record-breaking high temperatures are
expected to occur across the region going through Monday. Heat-related
advisories and warnings are in place as this persistent level of major to
extreme heat remains a danger to anyone without adequate air-conditioning
or hydration, and for those spending greater time outdoors. After a brief
period of more seasonable temperatures to the north following a cold
frontal passage, highs will trend above average again for most of the rest
of the Intermountain West on Sunday and these very warm temperatures will
also spread east out into the Plains early next week. In fact, by Monday
and Tuesday, some areas of the northern Plains are expected to see high
temperatures reach 20 degrees above average.
Very warm and windy conditions over areas of the central Rockies and out
across the central Plains going through this evening just south of a cold
front will also be maintaining dangerous fire weather conditions, which
should improve later tonight and on Sunday. The Storm Prediction Center
has highlighted areas from northern Colorado, southern Wyoming through
central Nebraska and southern South Dakota in a Critical Risk of fire
weather (level 2/3). Widespread Red Flag Warnings cover much of this
region due to wildfire risk. Meanwhile, farther east, greater moisture out
ahead of the same cold front will lead to areas of some showers and
thunderstorms across the Upper Great Lakes region going through this
evening and the overnight period. A Slight Risk of severe weather (level
2/5) has been introduced by the Storm Prediction Center for northern
Wisconsin and parts of the U.P. of Michigan. Some areas of large hail and
damaging wind gusts will be possible across these areas. On Sunday, as the
cold front moves east into the Lower Great Lakes region and parts of the
Upper Ohio Valley, showers and thunderstorms will be expected here. A
Slight Risk of severe weather has also been depicted on Sunday for eastern
Ohio, western Pennsylvania and western New York where a threat of some
large hail and damaging wind gusts will exist.
Tropical Storm Milton has formed over the southwest Gulf of Mexico and is
forecast by the National Hurricane Center to gradually move off to the
northeast over the next few days while steadily intensifying. Areas of
locally heavy rain are expected to arrive though across the Florida
Peninsula and Keys well ahead of the intensifying storm as moisture
pooling along a front coupled with proximity of a separate area of low
pressure over the eastern Gulf of Mexico helps to concentrate areas of
heavy showers and thunderstorms on Sunday and Monday. Coastal areas of the
central and southern parts of the Florida Peninsula may see locally
several inches of rain just through Monday, and this will lead to an
increasing threat for areas of flooding. The Weather Prediction Center has
locally depicted a Slight Risk of excessive rainfall (level 2/4) as a
result. For the very latest on Tropical Storm Milton, please consult the
latest National Hurricane Center advisories.
Orrison
Graphics available at
https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php
